communication method, mobile station handset, base station handset and mobile communication system.

专利摘要:
COMMUNICATION METHOD, MOBILE STATION APPLIANCE, BASE STATION APPLIANCE AND MOBILE COMMUNICATION SYSTEM. The present invention relates to a mobile communication system and a communication method for enabling HARQ control information to be transmitted and received using radio resources efficiently in the case where a base station apparatus and a mobile station apparatus communicate with each other in a wider frequency band using component carriers in a composite manner, in the method of communication in the mobile station apparatus which transmits, to the base station apparatus, the HARQ control information for a plurality of transport blocks of downlink components transmitted on a plurality of downlink component carriers using a first physical uplink control channel resource, in the case where the mobile station apparatus detects a single physical downlink control channel in a search space common in a certain subframe, the mobile station apparatus transmits the HARQ control information to the d apparatus. and base station, using a second physical uplink control channel resource different from the first physical uplink control channel resource.
公开号:BR112012024374A2
申请号:R112012024374-8
申请日:2011-03-25
公开日:2021-04-27
发明作者:Tatsushi Aiba；Shohei Yamada；Shoici Suzuki
申请人:Sharp Kabushiki Kaisaha；
IPC主号:

专利说明:

Invention Patent Descriptive Report for "COMMUNICATION METHOD, MOBILE STATION APPARATUS, BASE STATION APPARATUS AND MOBILE COMMUNICATION SYSTEM".
TECHNICAL FIELD The present invention relates to a communication system and mobile communication method comprised of base station apparatus and mobile station apparatus.
BACKGROUND ART The 3GPP (3rd Generation Partnership Project) is a project to study and prepare specifications for mobile communication systems based on evolved networks of W-CDMA (Code Division Multiple Access - Broadband) and GSM (Global System for Mobile Communications). 3GPP standardized W-CDMA systems as the 3G mobile cellular communication system, and services were started sequentially. Additionally, 3GPP standardized HSDAP (High Speed Downlink Packet Access) with further increased communication rates, and services were started. In 3GPP, using evolution (hereafter referred to as "LTE (Long Term Evolution)" or "EUTRA (Evolved Universal Terrestrial Radio Access)") of 3G radio access techniques 20 and wider frequency bands, studies have proceeded into mobile communication systems (hereafter referred to as "LTE-A (Long Term Evolution - Advanced)" or "EUTRA - Advanced") to upgrade high rate data transmission and reception. As the communication schemes in LTE, considered are an OFDMA (Orthogonal Frequency Division Multiple Access) method for performing user multiplexing using mutually orthogonal subcarriers, and an SC-FDMA (Carrier Frequency Division Multiple Access) method Only). In other words, OFDMA method which is a multi-carrier communication scheme is proposed in downlink, and SC-FDMA method which is a single-carrier communication scheme is proposed in uplink. However, like the communication method in LTE-A, the OFDMA method is considered downlink, and in uplink, in addition to the SC-FDMA method, it is considered SC-FDMA-Bundled (Multiple Access by Carrier Frequency Division Single Grouped, also referred to as DFT-s-OFDM with Spectrum Division Control and DFT pre-coded OFDM). In this document, the SC-FDMA method and SC-FDMA-Bundled method, which are proposed as the uplink communication scheme in LTE and LTE-A, have characteristics that allow controlling the PAPR (Peak and Power Ratio and Medium, transmit power) in data transmission (information) to stay at low 10 levels, due to the performance (single-carrier performance) of single-carrier communication method.
Additionally, in LTE-A, unlike mobile communication systems in general where used frequency bands are contiguous, it is considered to use a plurality of contiguous and/15 or non-contiguous frequency bands (hereinafter, referred to as "carrier components (CCs)" or "carrier components (CCs)") in a manner composed to operate as a single frequency band (the widest frequency band) (also referred to as carrier aggregation, spectrum aggregation, frequency aggregation and so on). In addition, in order for the base station apparatus and the mobile station apparatus to communicate using the wider frequency band more flexibly, it is also proposed to determine different frequency bandwidths in a frequency band. frequency used in downlink communications and a frequency band used in uplink communications (Asymmetric Carrier Aggregation) (Non-Patent Document 1). FIGURE 10 is a diagram for explaining a mobile communication system subject to carrier aggregation in conventional techniques.
Determining the same bandwidth in a frequency band used in downlink (DL) communications and a frequency band used in uplink (UL) communications as shown in FIGURE 10 is also referred to as Symmetric Aggregation of by-
therapist.
As shown in FIGURE 10, the base station apparatus and the mobile station apparatus use a plurality of component carriers that are contiguous and/or non-contiguous frequency bands in a composite manner, and are capable of performing communications in the wider frequency band comprised of a plurality of component carriers.
As an example, FIGURE 10 shows that the frequency band (hereafter referred to as a DL system band and DL system bandwidth) with a 100 MHz bandwidth used in downlink communications is comprised of five 10 component downlink carriers (DCC1: Component Downlink Carrier 1, DCC2, DCC3, DCC4, and DCC5) each with a frequency bandwidth of 20 MHz.
Additionally, as an example, FIGURE 10 shows the frequency band (hereafter referred to as a UL system band and UL system bandwidth) with a 100 MHz bandwidth used in communications in uplink is comprised of five uplink component carriers (UCC1: Uplink Component Carrier 1, UCC2, UCC3, UCC4, and UCC5) each with a frequency bandwidth of 20 MHz. In FIGURE 10, downlink channels such as physical downlink control channel (PDCCH), Physical Downlink Shared Channel (PDSCH), and so on are mapped onto each Component Downlink Carrier.
The base station apparatus allocates control information (resource allocation information, MCS (Modulation and Coding Scheme) information, HARQ (Hybrid Automatic Repeat Request) processing information) and so on) to transmit a block of downlink transport to be transmitted using PDSCH to a mobile station apparatus using PDCCH, and transmits the downlink transport block to the mobile station apparatus using PDSCH.
In other words, in FIGURE 10, the base station apparatus is capable of transmitting up to five downlink transport blocks to the mobile station apparatus in the same subframe.
However, uplink channels such as Uplink Control Channel (PUCCH), Physical Uplink Shared Channel (PUSCH) and so on are mapped onto each Uplink Component Carrier.
The mobile station apparatus transmits uplink control information (UCI) which includes HARQ control information (hereinafter described as HARQ control information), channel state information, schedule request, and so on. forward to the base station apparatus using the PUC-10 CH and/or the PUSCH.
In this document, the HARQ control information includes information indicative of ACK/NACK (a Positive Acknowledgment / a Negative Acknowledgment, ACK or NACK) for the PDCCH and/or a downlink transport block and/or information indicative of DTX (Discontinuous Transmission). DTX indicative information is information indicating that the mobile station apparatus was not able to detect the PDCCH transmitted from the base station apparatus (or it may be information indicating whether the mobile station apparatus was able to detect the PDCCH). In this document, in FIGURE 10, there may be a downlink/uplink component carrier in which any downlink/uplink channel such as PDCCH, PDSCH, PUCCH and PUSCH is not mapped.
Similarly, FIGURE 11 is a diagram for explaining a mobile communication system subject to asymmetric carrier aggregation in conventional techniques.
As shown in FIGURE 11, different bandwidths are determined in a frequency band used in downlink communications and a frequency band used in uplink communications, and the base station apparatus and the mobile station apparatus they use component carriers that are contiguous and/or non-contiguous frequency bands that constitute the frequency bands in a composite manner, and are capable of carrying out communications in the wider frequency band.
As an example, FIGURE 11 shows that the frequency band with a bandwidth of 100
MHz used in downlink communications is comprised of five component downlink carriers (DCC1, DCC2, DCC3, DCC4, and DCC5) each with a frequency band of 20 MHz, and that frequency band with a bandwidth 40 MHz 5 used in uplink communications is comprised of two uplink component carriers (UCC1 and UCC2) each with a frequency band of 20 MHz.
In this document, in FIGURE 11, downlink channels and uplink channels are mapped to component downlink carriers and component uplink carriers respectively.
And the base station apparatus assigns the PDSCH to the mobile station apparatus using the PDCCH, and transmits a downlink transport block to the mobile station apparatus using the PDSCH.
In other words, in FIGURE 11, base station apparatus 15 is capable of transmitting up to five downlink transport blocks to mobile station apparatus in the same subframe.
Meanwhile, the mobile station apparatus transmits the uplink control information which includes the HARQ control information, the channel status information, the scheduling request and so on to the base station apparatus using the PUCCH and/or PUSCH.
Additionally, in LTE-A, a method of assignment is proposed in the case where the base station apparatus assigns the PDSCH to the mobile station apparatus using the PDCCH on a downlink component carrier (Non-Patent Document two). FIGURE 12 is a diagram to explain an example of the method of designating PDSCH using PDCCH in conventional techniques.
FIGURE 12 shows a part of the downlink component carriers (part of DCC1, DCC2 and DCC3) in FIGURES 10 and 11. As shown in FIGURE 12, the base station apparatus is capable of assigning a plurality of PDSCHs to the mobile station apparatus in the same subframe, using a plurality of PDCCHs on ONE component downlink carrier.
As an example, FIGURE 12 shows that the base station apparatus assigns PDSCHs in DCC1, DCC2 and DCC3, using three PDCCHs (PDCCHs shown respectively by diagonal lines, grid lines, and mesh lines) in DCC2 (the PDSCH in DCC1 is designated by PDCCH shown by diagonal lines, PDSCH in DCC2 is designated by PDCCH shown by gridded lines, and PDSCH in DCC3 is designated by PDCCH shown by meshed lines. base station are capable of transmitting up to three downlink transport blocks to the mobile station apparatus in the same subframe, using 10 PDSCHs respectively in DCC1, DCC2 and DCC3.
PRIOR ART DOCUMENTS Non-Patent Documents Non-Patent Document 1: "Carrier Aggregation in LTE-Advanced", Meeting 3GPP TSG RAN WG 1 #53bis, R1-082468, 30 June 15 to 4 July 2008. Document No Patent 2: "PDCCH Carrier Aggregation Project", Meeting 3GPP TSG RAN WG 1 #57, R1-091829
DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in conventional techniques, there is a problem that radio resources are used inefficiently in the case where the base station apparatus and the mobile station apparatus transmit and receive the information of HARQ control. The present invention was made in view of these circumstances, and it is an object of the invention to provide a communication method, a mobile station apparatus, a base station apparatus and a mobile communication system for enabling HARQ control information is transmitted and received using radio resources efficiently in the case where the base station apparatus and the mobile station apparatus communicate with each other in the wider frequency band using a plurality of component carriers in a composite manner. Means to Solve the Problem
(1) In order to achieve the above mentioned objective, the present invention took measures as described below.
In other words, a communication method of an embodiment of the invention is a communication method in a mobile station apparatus that transmits, to a base station apparatus, HARQ control information for a plurality of blocks. of downlink transport transmissions transmitted on a plurality of component downlink carriers using a first uplink control channel resource, and is characterized in that in the case where the mobile station apparatus detects a single 10 physical downlink control channel in a common search space in a subframe, the mobile station apparatus transmits HARQ control information to the base station apparatus using a second different uplink control channel resource of the first uplink control channel resource. (2) Additionally, a method of communicating an embodiment of the invention is a method of communicating in a mobile station apparatus that transmits, to a base station apparatus, HARQ control information for a plurality of blocks of downlink transport transmitted on a plurality of component downlink carriers using a first uplink control channel feature, and is characterized in that in the case where the mobile station apparatus detects a a single physical downlink control channel that corresponds to the transmission of a single physical downlink channel shared only on a specific downlink component carrier in a common search space in a subframe, the mobile station transmits HARQ control information to the base station apparatus using a second uplink control channel resource different from the first uplink resource. uplink control channel. (3) Furthermore, a method of communicating an embodiment of the invention is a method of communicating in a mobile station apparatus that transmits control information to a base station apparatus.
1 and HARQ for a plurality of downlink transport blocks transmitted on a plurality of component downlink carriers, using a first transmission format, and is characterized by the fact that in the case where the mobile station detects a single physical downlink control channel in a common search space in a subframe, the mobile station apparatus transmits HARQ control information to the base station apparatus using a second transmission format different from the first format of transmission. 10 (4) Still further, a method of communication of an embodiment of the invention is a method of communication in a mobile station apparatus that transmits, to a base station apparatus, HARQ control information for a plurality of downlink transport blocks transmitted on a plurality of downlink component carriers 15 using a first transmission format, and is characterized in that in the case where the mobile station apparatus detects a single physical control channel. downlink corresponding to the transmission of a single physical downlink channel shared only on a specific downlink component carrier in a common search space in a subframe, the mobile station apparatus transmits HARQ control information for the base station apparatus, using a second broadcast format different from the first broadcast format. (5) Furthermore, in the communication method of an embodiment 25 of the invention, it is a feature that the base station apparatus indicates the specific downlink component carrier to the mobile station apparatus using an RRC signal. (6) Additionally, in the communication method of an embodiment of the invention, it is a feature that the specific downlink component carrier is a downlink component carrier associated with an uplink control carrier in that the mobile station apparatus transmits the control information
HARQ using an uplink control channel. (7) Furthermore, in the communication method of an embodiment of the invention, it is a feature that the HARQ control information includes information indicative of ACK/NACK for a downlink transport block. (8) Still further, in the communication method of a mode of the invention, it is a feature that the HARQ control information includes information indicative of DTX (Discontinuous Transmission). (9) Furthermore, in the communication method of an embodiment 10 of the invention, it is a feature that a physical resource block used as the second uplink control channel resource is designated by the base station apparatus. (10) Additionally, in the communication method of an embodiment of the invention, it is a feature that the resource used as the second uplink control channel resource is identified by an orthogonal sequence and a cyclic shift designated by the base station device. (11) Furthermore, in the communication method of an embodiment of the invention, it is a feature that the amount of information bits transmittable for each subframe using the second transmission format is less than the amount of information bits transmittable. for each subframe using the first broadcast format. (12) Still further, in the method of communication of a mode of the invention, it is a characteristic that it is possible to use a modulation scheme with a lower modulation level in the second transmission format than one modulation scheme used in the first broadcast format. (13) Furthermore, in the communication method of an embodiment of the invention, it is a feature that a physical resource block used in the second transmission format is designated by the base station apparatus. (14) Additionally, in the method of communication of a fashion-
For the purpose of the invention, it is a feature that the resource used in the second transmission format is identified by an orthogonal sequence and a cyclic shift designated by the base station apparatus. (15) Additionally, a method of communicating an embodiment of the invention is a method of communicating in a base station apparatus that receives, from a mobile station apparatus, HARQ control information for a plurality of downlink transport blocks transmitted on a plurality of downlink component carriers using a first uplink control channel resource 10, and is characterized in that in the case where the mobile station apparatus detects a single downlink physical control channel in a common search space in a subframe, the base station apparatus receives HARQ control information from the mobile station apparatus using a second link control channel resource 15 uplink different from the first uplink control channel feature. (16) Furthermore, a method of communicating an embodiment of the invention is a method of communicating in a base station apparatus that receives, from a mobile station apparatus, HARQ control information for a plurality of transport blocks. of downlink carriers transmitted on a plurality of downlink component carriers using a first uplink control channel resource, and is characterized in that in the case where the mobile station apparatus detects a single channel of uplink control that corresponds to transmission of a single shared physical downlink channel only on a specific downlink component carrier in a common search space in a subframe, the base station apparatus receives HARQ control information of the mobile station apparatus using a second uplink control channel resource 30 different from the first link control channel resource ascendant. (17) Still, in addition, a method of communication of a mo-
The embodiment of the invention is a method of communication in a base station apparatus that receives, from a mobile station apparatus, HARQ control information for a plurality of downlink transport blocks transmitted on a plurality of component carriers. 5 downlink, using a first transmission format, and is characterized by the fact that in the case where the mobile station apparatus detects a single physical downlink control channel in a common search space in In a subframe, the base station apparatus receives HARQ control information from the mobile station apparatus, using a second transmission format different from the first transmission format. (18) Furthermore, a method of communicating an embodiment of the invention is a method of communicating in a base station apparatus that receives, from a mobile station apparatus, HARQ control information for a plurality of transport blocks. of downlink carriers transmitted on a plurality of downlink component carriers, using a first transmission format, and is characterized in that in the case where the mobile station apparatus detects a single corresponding uplink control channel transmitting a single physical downlink channel shared only on a specific downlink component carrier in a common search space in a subframe, the base station apparatus receives HARQ control information from the mobile station apparatus, using a second transmission format different from the first transmission format. (19) Additionally, in the communication method of an embodiment of the invention, it is a feature that the base station apparatus indicates the specific downlink component carrier to the mobile station apparatus using an RRC signal. In addition, in the communication method of an embodiment of the invention, it is a feature that the specific downlink component carrier is a downlink component carrier associated with an uplink control carrier in which the station apparatus mobile transmits HARQ control information using an uplink control channel. (21) Still further, in the communication method of an embodiment of the invention, it is a feature that the HARQ control information includes information indicative of ACK/NACK for a downlink transport block. (22) Furthermore, in the communication method of an embodiment of the invention, it is a feature that the HARQ control information includes information indicative of DTX (Discontinuous Transmission). (23) Additionally, in the communication method of an embodiment of the invention, it is a feature that a physical resource block used as the second uplink control channel resource is designated by the base station apparatus. 15 (24) Furthermore, in the communication method of an embodiment of the invention, it is a feature that the resource used as the second uplink control channel resource is identified by an orthogonal sequence and a cyclic shift designated by the apparatus of base station. 20 (25) Still further, in the one-mode communication method of the invention, it is a characteristic that the amount of transmittable bits of information for each subframe using the second transmission format is less than the amount of bits of information transmittable for each subframe using the first transmission format. 25 (26) Furthermore, in the communication method of an embodiment of the invention, it is a feature that it is possible to use a modulation scheme with a lower modulation level in the second transmission format than a modulation scheme used in the first transmission format. streaming. 30 (27) Additionally, in the communication method of a mode of the invention, it is a characteristic that a physical resource block used in the second transmission format is designated by the studio apparatus.
basis. (28) Furthermore, in the communication method of an embodiment of the invention, it is a feature that the resource used in the second transmission format is identified by an orthogonal sequence and a cyclic shift designated by the base station apparatus. (29) Additionally, a mobile station apparatus of an embodiment of the invention is a mobile station apparatus that transmits, to a base station apparatus, HARQ control information for a plurality of downlink transport blocks transmitted in a plurality of downlink component carriers, using a first uplink control channel feature, and is characterized by the fact that it comprises: a unit that transmits HARQ control information to the base station apparatus, using a second uplink control channel resource different from the first uplink control channel resource in the case where the mobile station apparatus detects a single physical downlink control channel on a common search space in a subframe. (30) Furthermore, a mobile station apparatus of an embodiment of the invention is a mobile station apparatus that transmits, to a base station apparatus, HARQ control information for a plurality of link transport blocks. downlink carriers transmitted on a plurality of downlink component carriers using a first uplink control channel resource, and is characterized in that it comprises: a unit that transmits HARQ control information to the base station apparatus , using a second uplink control channel resource different from the first uplink control channel resource, in the case where the mobile station apparatus detects a single physical downlink control channel that corresponds to the transmission of a single physical downlink channel shared only on a specific downlink component carrier in a common search space in a subframe.
(31) Still further, a mobile station apparatus of an embodiment of the invention is a mobile station apparatus which transmits, to a base station apparatus, HARQ control information for a plurality of downlink transport blocks transmitted in 5 a plurality of downlink component carriers using a first transmission format, and is characterized in that it comprises: a unit transmitting HARQ control information to the base station apparatus using a different second transmission format of the first transmission format, in the case where the mobile station apparatus detects a single physical downlink control channel in a common search space in a subframe. (32) Furthermore, a mobile station apparatus of an embodiment of the invention is a mobile station apparatus that transmits, to a base station apparatus, HARQ control information for a plurality of link transport blocks. downlink carriers transmitted on a plurality of downlink component carriers, using a first transmission format, and is characterized by the fact that it comprises: a unit that transmits HARQ control information to the base station apparatus, using a second transmission format different from the first transmission format in the case where the mobile station apparatus detects a single physical downlink control channel that corresponds to the transmission of a single physical downlink channel shared only in one component-specific downlink carrier in a common search space in a subframe. 25 (33) Additionally, a base station apparatus of an embodiment of the invention is a base station apparatus that receives, from a mobile station apparatus, HARQ control information for a plurality of downlink transport blocks. transmitted on a plurality of downlink component carriers using a first uplink control channel resource, and is characterized in that it comprises: a unit that receives HARQ control information from the mobile station apparatus, using a second uplink control channel resource different from the first uplink control channel resource, in the case where the mobile station apparatus detects a single physical downlink control channel in a search space common in a subframe. 5 (34) Furthermore, a base station apparatus of an embodiment of the invention is a base station apparatus that receives, from a mobile station apparatus, HARQ control information for a plurality of link transport blocks. downlink carriers transmitted on a plurality of downlink component carriers using a first uplink control channel feature, and is characterized in that it comprises: a unit that receives HARQ control information from the apparatus of mobile station using a second uplink control channel resource different from the first uplink control channel resource, in the case where the mobile station apparatus detects a single physical link control channel which corresponds to the transmission of a single physical downlink channel shared only on a specific downlink component carrier in a common search space in a subframe. (35) Still further, a base station apparatus of an embodiment of the invention is a base station apparatus that receives, from a mobile station apparatus, HARQ control information for a plurality of link transport blocks. downlink carriers transmitted on a plurality of downlink component carriers, using a first transmission format, and is characterized in that it comprises: a unit receiving HARQ control information from the mobile station apparatus, using a second transmission format. transmission different from the first transmission format, in the case where the mobile station apparatus detects a single physical downlink control channel in a common search space in a subframe. 30 (36) Furthermore, a base station apparatus of an embodiment of the invention is a base station apparatus that receives, from a mobile station apparatus, HARQ control information for a plurality of link transport blocks. downlink carriers transmitted on a plurality of downlink component carriers, using a first transmission format, and is characterized by the fact that it comprises: a unit receiving HARQ control information from the mobile station apparatus, using a second transmission format different from the first transmission format, in the case where the mobile station apparatus detects a single physical downlink control channel which corresponds to the transmission of a single physical downlink channel shared only on a specific component carrier 10 downlink in a common search space in a subframe. (37) Additionally, a mobile communication system of an embodiment of the invention is a mobile communication system in which a mobile station apparatus transmits, to a base station apparatus, HARQ control information for a plurality of transport blocks 15 of downlink transmitted on a plurality of component downlink carriers using a first uplink control channel feature, and is characterized by the fact that the base station apparatus transmits a single physical link control channel to the mobile station apparatus in a common search space 20 in a subframe, and that in the case where the mobile station apparatus detects the physical downlink control channel signal, the mobile station apparatus transmits control information HARQ to the base station apparatus, using a second uplink control channel resource different from the first uplink control channel resource. 25 uplink. (38) Furthermore, a mobile communication system of an embodiment of the invention is a mobile communication system in which a mobile station apparatus transmits, to a base station apparatus, HARQ control information for a plurality of transport blocks. of downlink carriers transmitted on a plurality of downlink component carriers using a first uplink control channel feature, and is characterized by the fact that the
The base station son transmits, to the mobile station apparatus, a single uplink control channel which corresponds to the transmission of a single physical downlink channel shared only on a specific downlink component carrier in a common search space in a subframe, and that in the case where the mobile station apparatus detects the only physical downlink control channel, the mobile station apparatus transmits HARQ control information to the base station apparatus using a second resource of uplink control channel different from the first uplink control channel resource. (39) Still further, a mobile communication system of an embodiment of the invention is a mobile communication system in which a mobile station apparatus transmits, to a base station apparatus, HARQ control information for a plurality of downlink transport blocks transmitted on a plurality of component downlink carriers, using a first transmission format, and characterized in that the base station apparatus transmits, to the mobile station apparatus, a single physical downlink control channel in a common search space in a subframe, and that in the case where the mobile station apparatus detects the only physical downlink control channel, the mobile station apparatus transmits information of HARQ control for the base station handset, using a second broadcast format different from the first broadcast format. 25 (40) Furthermore, a mobile communication system of an embodiment of the invention is a mobile communication system in which a mobile station apparatus transmits, to a base station apparatus, HARQ control information for a plurality of transport blocks. of downlink carriers transmitted on a plurality of component downlink carriers, using a first transmission format, and is characterized in that the base station apparatus transmits, to the mobile station apparatus, a single physical downlink control channel that corresponds to the transmission of a single physical downlink channel shared only on a specific component downlink carrier in a common search space in a subframe, and that in the case where the apparatus of the mobile station detects the only physical downlink control channel, the mobile station apparatus transmits HARQ control information to the mobile station apparatus. base station, using a second transmission format different from the first transmission format.
Advantageous Effects of the Invention According to the invention, it is possible to transmit and receive HARQ control information using radio resources efficiently, in the case where a base station apparatus and a mobile station apparatus communicate with each other in a wider frequency band using component carriers in a composite manner. BRIEF DESCRIPTION OF THE DRAWINGS FIGURE 1 is a diagram conceptually showing a configuration of physical channels in accordance with Embodiments of the Invention; FIGURE 2 is a block diagram illustrating a schematic configuration of a base station apparatus in accordance with Embodiments of the Invention; FIGURE 3 is a block diagram illustrating a schematic configuration of a mobile station apparatus in accordance with Embodiments of the Invention; FIGURE 4 is a diagram showing an example of a downlink radio frame configuration in accordance with Embodiments of the Invention; FIGURE 5 is a diagram showing an example of a mobile communication system for which Modality 1 is applicable; FIGURE 6 is a diagram showing an exemplary configuration of orthogonal features of an uplink control channel; FIGURE 7 is a diagram showing another configuration e-
exemplified of orthogonal resources of the uplink control channel; FIGURE 8 is a diagram showing yet another exemplary configuration of uplink control channel orthogonal resources; FIGURE 9 is a diagram showing an example of a mobile communication system for which Modality 2 is applicable; FIGURE 10 is a diagram showing an example of carrier aggregation in conventional techniques; FIGURE 11 is a diagram showing an example of asymmetric carrier aggregation in conventional techniques; and FIGURE 12 is a diagram for explaining an example of a method of designating a Physical Downlink Shared Channel using a physical downlink control channel in conventional techniques.
BEST MODE FOR CARRYING OUT THE INVENTION Embodiments according to the invention will be described below with reference to the figures. FIGURE 1 is a diagram showing an example configuration of channels in Embodiments of the Invention. Physical channels 20 downlink are comprised of Physical Broadcast Channel (PBCH), Physical Downlink Control Channel (PDCCH), Physical Downlink Shared Channel (PDSCH), Physical Multicast Channel (PMCH), Physical Channel Indicator Control Format (PCFI-CH), and Hybrid ARQ Physical Indicator Channel (PHICH). 25 Physical uplink channels are comprised of Physical Uplink Shared Channel (PUSCH), Uplink Control Channel (PUCCH), and Physical Random Access Channel (PRACH). In PBCH, the Broadcast Channel (BCH) is mapped into 40 ms intervals. 40 ms sync is blindly detected (blind detection). In other words, no explicit signaling is performed to indicate timing. Additionally, each subframe that includes the PBCH is capable of being decoded only by the subframe (self-decoding). PDCCH is a channel used to notify (assign) the mobile station apparatus of PDSCH resource allocation, HARQ processing information related to downlink data, PUSCH resource allocation, etc.
The PDCCH is comprised of a plurality of control channel elements (CCEs), and the mobile station apparatus detects the PDCCH comprised of CCEs, and thereby receives the PDCCH from the base station apparatus.
The CCE is comprised of a plurality of groups of resource elements (REGs, also referred to as mini-CCEs) mapped to the frequency domains and the time domains.
In this document, the resource element is a unit resource comprised of one subcarrier (frequency component), and, for example, the REG is comprised of four contiguous downlink resource elements in the frequency domain except downlink pilot channels, in the frequency domain within the same OFDM symbol.
For example, a PDCCH is comprised of 1, 2, 4 or 8 CCEs so that the numbers (CCE indices) to identify the CCE are continuous.
In this document, the PDCCH undergoes separate encoding for each mobile station apparatus and for each type.
In other words, the mobile station apparatus detects a plurality of PDCCHs, and obtains downlink or uplink resource allocation, and other control information.
Each PDCCH is provided with a CRC (Cyclic Redundancy Check) value, and the mobile station apparatus performs 25 CRCs in each set of CCEs with the possibility of forming a PDCCH, and is able to obtain the PDCCH that the CRC it achieves.
This is also referred to as blind decoding, and the range of sets of CCEs with the possibility of forming a PDCCH for the mobile station apparatus to perform blind decoding is referred to as a search space. In other words, the mobile station apparatus performs blind decoding on CCEs within the search space to detect the PDCCH.
In the case where the resource allocation of the PDSCH is transmitted in the PDCCH, the mobile station apparatus uses the PDSCH which corresponds to the resource allocation indicated by the PDCCH of the base station apparatus, and receives data (hereinafter, also referred to as a downlink signal) (downlink data (Downlink Shared Channel (DL-SCH)) and/or downlink control data (downlink control information)). In other words, this PDCCH is used to transmit a signal (hereinafter, also referred to as a "downlink transmission permit signal" and "downlink authorization") to perform resource allocation in the downlink.
Additionally, in the case where the resource allocation of the PUSCH is transmitted in the PDCCH, the mobile station apparatus uses the PUSCH which corresponds to the resource allocation indicated by the PDCCH of the base station apparatus, and transmits data (hereafter in onwards, also referred to as an uplink signal) (uplink data (Uplink Shared Channel (UL-SCH)) and/or uplink control data (uplink control information) ). In other words, this PDCCH is used to transmit a signal (hereinafter, also referred to as an "uplink transmission permit signal" and "uplink authorization") to perform the uplink resource allocation.
PDSCH is a channel used to transmit downlink data (Shared Downlink Channel: DL-SCH) or paging information (Paging Channel: PCH). The PMCH is a channel 25 used to transmit a Multicast Channel (MCH), and a downlink reference signal, uplink reference signal and physical downlink synchronization signal are allocated separately.
In this document, for example, downlink data (DL-SCH) indicates user data transmission, and DL-SCH is a transport channel.
The DL-SCH supports HARQ and dynamic adaptive radio link control, and allows beamforming to be used.
DL-SCH supports dynamic resource allocation and quasi-static resource allocation.
PUSCH is a channel used primarily to transmit uplink data (Uplink Shared Channel: UL-SCH). Additionally, in the case where the base station apparatus performs scheduling in the mobile station apparatus, the uplink control information is also transmitted using the PUSCH.
The uplink control information includes CSI channel state information (Channel State Information or Channel Statistical Information) indicative of a downlink channel state, downlink CQI channel quality indicator 10, indicator of PMI precoding matrix, RI classification indicator, and HARQ control information.
In this document, the HARQ control information includes information indicative of ACK/NACK for the PDCCH and/or the downlink transport block transmitted from the base station apparatus and/or information indicative of DTX.
DTX indicative information is information indicating that the mobile station apparatus was not able to detect the PDCCH transmitted from the base station apparatus (or it may be information indicating whether the mobile station apparatus was able to detect the PDCCH). In this document, for example, uplink data (UL-SCH) indicates user data transmission, and UL-SCH is a transport channel.
The UL-SCH supports HARQ and dynamic adaptive radio link control, and allows beamforming to be used.
UL-SCH supports dynamic resource allocation and quasi-static resource allocation.
Additionally, the uplink data (UL-SCH) and downlink data (DL-SCH) may include radio resource control signals (hereinafter, referred to as an "RCC signaling: Resource Control signaling Radio") exchanged between the base station apparatus and the mobile station apparatus, a MAC (Medium Access Control) control element, and so on.
The base station apparatus and the mobile station apparatus transmit and receive the RCC signaling through a higher layer (a Radio Resource Control layer). Additionally, the base station apparatus and the
mobile station son transmit and receive the MAC control element through the highest layer (a MAC (Medium Access Control) layer). PUCCH is a channel used to transmit uplink control information.
In this document, the uplink control information includes the CSI channel state information indicative of a downlink channel state, the downlink CQI channel quality indicator, the PMI precoding matrix indicator, the classification indicator RI, the scheduling request (SR) to request resource allocation (request transmission on UL-SCH) for the mobile station apparatus to transmit the uplink data, and the HARQ control information.
PCFICH is a channel used to notify the mobile station apparatus of the amount of OFDM symbols used for PDCCH, and it is transmitted in each subframe.
The PHICH is the channel used to transmit HARQ ACK/NACK in response to uplink (UL-SCH) data. The PRACH is a channel used to transmit a random access preamble, and it has a guard time.
As shown in FIG. 1, a mobile communication system in accordance with the Modalities is comprised of base station apparatus 100 and mobile station apparatus 200. Base Station Apparatus Configuration FIGURE 2 is a diagram illustrating a schematic configuration of base station apparatus 100 in accordance with Embodiments of the Invention.
The base station apparatus 100 includes a data control unit 101, transmit data modulation unit 102, radio unit 103, scheduling unit 104, channel estimation unit 105, receive data demodulation unit 106 , data extraction unit 107, upper layer 108 and antenna 109, and is comprised thereof.
Additionally, radio unit 103, scheduling unit 104, channel estimation unit 105, receive data demodulation unit 106, data extraction unit 107, upper layer 108 and antenna 109 constitute one unit. base station side receiving unit, and the data control unit 101, transmit data modulation unit 102, radio unit 103, scheduling unit 104, upper layer 108 and antenna 109 constitute a unit of base station-side transmission. Antenna 109, radio unit 103, channel estimation unit 105, receive data demodulation unit 106, and data extraction unit 107 perform uplink physical layer processing.
Antenna 109, radio unit 103, transmit data modulation unit 102 and data control unit 101 perform downlink physical layer processing.
The data control unit 101 receives a transport channel from the scheduling unit 104. Based on the scheduling information input from the scheduling unit 104, the data control unit 101 maps the transport channel, and signals and channels generated in the physical layer for physical channels.
Each data mapped as described above is provided to the transmit data modulation unit 102. The transmit data modulation unit 102 modulates the transmit data to the OFDM scheme.
Based on the scheduling information of the scheduling unit 104, and the modulation scheme and coding scheme associated with each PRB, the transmit data modulation unit 102 performs modulation signal processing, coding, serial/parallel transformation. of input signal data, processing IFFT (Inverse Fast Fourier Transform), insertion of CP (Cyclic Prefix), filtering and so on in the data input from the data control unit 101, and generates data from transmission to output of the radio unit 103. In this document, the scheduling information includes downlink physical resource block (PRB) assignment information, e.g. of frequency and time, and, for example, the modulation scheme and coding scheme associated with each PRB include modulation scheme information: 16QAM, coding rate: 2/3, etc.
The radio unit 103 up-converts the modulation data input from the transmit data modulation unit 102 to generate a radio signal, and transmits the signal to the mobile station apparatus 200 via antenna 109. Meanwhile, radio unit 5 103 receives an uplink radio signal from mobile station apparatus 200 via antenna 109, down-converts the signal to a baseband signal, and provides receive data to the channel estimation unit 105 and receive data demodulation unit 106. The scheduling unit 104 performs Media Access Control (MAC) layer processing. The scheduling unit 104 performs mapping of logical channels and transport channels, scheduling (HARQ processing, transport format selection, etc.) in downlink and uplink, and so on.
In order for the scheduling unit 104 to fully control the processing units of the respective physical layers, there are interfaces between the scheduling unit 104 and the antenna 109, radio unit 103, channel estimation unit 105, receive data demodulation unit 106, data control unit 101, transmit data modulation unit 102 and data extract unit 107 (although not shown). In uplink scheduling, based on feedback information (uplink channel state information (CSI, CQI, PMI, RI), ACK/NACK information in response to downlink data, etc. ) received from the mobile station apparatus 200, usable PRB information from each mobile station apparatus 200, buffer status buffer, higher layer scheduling information input 108, etc., to the schedule 104 performs processing to select transport format (transmission form 30, i.e. physical resource block allocation, modulation scheme, coding scheme, etc.) on downlink to modulate each data, retransmission control of HARQ, and information generation.
scheduling application used in the downlink.
The scheduling information used in downlink scheduling is provided to the data control unit 101. Meanwhile, in uplink scheduling, based on an estimated result of uplink channel state (radio channel state) provided of the channel estimation unit 105, the resource allocation request of the mobile station apparatus 200, usable PRB information of each mobile station apparatus 200, higher layer scheduling information input 108, etc. , the scheduling unit 104 performs processing to select the transport format (transmission form, i.e. physical resource block allocation, modulation scheme, coding scheme, etc.) on the uplink to modulate each data, and generate scheduling information used in uplink scheduling.
The scheduling information used in uplink scheduling is provided to the data control unit 101. In addition, the scheduling unit 104 maps the higher layer 108 downlink logical channel input to the channel of transport to supply to the data control unit 20 101. In addition, the scheduling unit 104 processes the control data and transport channel obtained at the uplink input of the data extraction unit 107, when necessary, and then maps the resultant to the uplink logical channel to provide for the higher layer 108. For uplink data demodulation, the channel estimation unit 105 estimates a channel state of uplink of an uplink demodulation (DRS) reference signal, and provides the estimated result to the receive data demodulation unit 106. Uplink, the unit 105 estimates an uplink channel state of an uplink measurement reference signal (SRS: Sound Reference Signal), and provides the estimated result to the scheduling unit 104. The demodulation unit of receive data 106 also functions as an OFDM demodulation unit for demodulating receiving data modulated in the OFDM scheme and/or SC-FDMA scheme and/or a DFT-Spread-OFDM (DFT-S-OFDM) demodulation unit . Based on the estimated uplink channel state result input from the channel estimation unit 105, the receive data demodulation unit 106 performs DFT signal processing, subcarrier mapping, IFFT, filtering and so on. on input of 10 modulation data from the radio unit 103, thereby performs demodulation processing, and supplies the result to the data extraction unit 107. The data extraction unit 107 checks whether or not there is an error in the data input from the receive data demodulation unit 106, and provides the result of the verification (Positive acknowledgment signal ACK / Negative acknowledgment signal NACK) to the scheduling unit 104. In addition, the extracting unit data 107 divides the input data from the receive data demodulation unit 106 to the physical layer control data transport channel 20 to provide to the scheduler unit. tion 104. The split control data includes the CSI channel status information notified from the mobile station apparatus 200, downlink CQI channel quality indicator, PMI precoding matrix indicator, classification indicator RI, the HARQ control information, scheduling request, etc.
The upper layer 108 performs processing from the Packet Data Convergence Protocol (PDCP) layer, the Radio Link Control (RLC) layer, and the Radio Resource Control (R-RC) layer. In order for the higher layer 108 to fully control the lower layer processing units, there are interfaces between the higher layer 108 and the scheduling unit 104, antenna 109, radio unit 103, scheduling unit channel estimate 105, demodulation unit.
receive data unit 106, data control unit 101, transmit data modulation unit 102 and data extract unit 107 (although not shown). The upper layer 108 has a Radio Resource Control unit 110 (also called the control unit). Additionally, the Radio Resource Control unit 110 performs management of various types of configuration information, system management information, paging control, management of communication status of each mobile station apparatus 200, management of transfer movement. (handover), etc., buffering buffer status management for each mobile station apparatus 200, unicast and multicast carrier connection configuration management, management of mobile station identifiers (UEIDs ), etc.
Upper layer 108 performs delivery and acceptance of information to another base station apparatus 100 and information to a higher node.
Mobile Station Apparatus 200 Configuration FIGURE 3 is a block diagram illustrating a schematic configuration of mobile station apparatus 200 in accordance with Embodiments of the Invention.
The mobile station apparatus 200 includes a data control unit 201, transmission data modulation unit 202, radio unit 203, scheduling unit 204, channel estimation unit 205, transmission data demodulation unit. reception 206, data extraction unit 207, top layer 208 and antenna 209, and is comprised thereof.
Additionally, data control unit 201, transmit data modulation unit 202, radio unit 203, scheduling unit 204, upper layer 208 and antenna 209 constitute a mobile side transmission unit and radio unit 203 , scheduling unit 204, channel estimating unit 205, receiving data demodulation unit 206, data extracting unit 207, upper layer 208 and antenna 209 constitute a mobile side receiving unit.
Data control unit 201, transmit data modulation unit 202, and radio unit 203 perform uplink physical layer processing.
Radio unit 203, channel estimation unit 205, receive data demodulation unit 206, and data extraction unit 207 perform downlink physical layer processing.
The data control unit 201 receives a transport channel from the scheduling unit 204. Based on the scheduling information input from the scheduling unit 204, the data control unit 201 maps the transport channel, and signals and channels generated in the physical layer for physical channels.
Each data mapped in this way is provided to the transmit data modulation unit 202. The transmit data modulation unit 202 modulates the transmit data to the OFDM scheme and/or SC-FDMA scheme.
The transmit data modulation unit 202 performs data signal modulation processing, DFT (Discrete Fourier Transform) processing, subcarrier mapping, IFFT (Inverse Fast Fourier Transform) processing, CP insertion, filtering and so on in the data input from the data control unit 201, and generates transmission data to supply to the radio unit 203. transmit data 202 to generate a radio signal, and transmit the signal to base station apparatus 100 through antenna 209. Meanwhile, radio unit 203 receives a radio signal modulated with downlink data from the station apparatus. base 100 through antenna 209, downconverts the signal to a baseband signal, and provides reception data to channel estimation unit 205 and receive data demodulation unit 2 06. The scheduling unit 204 performs Media Access Control (MAC) layer processing. The scheduling unit 30 204 performs mapping of logical channels and transport channels, scheduling (HARQ processing, transport format selection, etc.) in downlink and uplink, and so on.
In order for the scheduling unit 204 to fully control the processing units of the respective physical layers, there are interfaces between the scheduling unit 204 and the antenna 209, data control unit 201, data modulation unit. transmission 202, channel estimation unit 205, receive data demodulation unit 206, data extraction unit 207 and radio unit 203 (although not shown). In downlink scheduling, based on scheduling information (transmission format and HARQ relay information) and so on from base station apparatus 100 and upper layer 208, scheduling unit 204 performs receive control in transport channels, physical signals and physical channels, HARQ retransmission control, and scheduling information generation used in downlink scheduling.
The scheduling information used in downlink scheduling is provided to the data control unit 201. In uplink scheduling, based on uplink damping buffer status entered from the highest layer 208, uplink scheduling information (transport format, HARQ relay information, etc.) of base station apparatus 100 input from data extraction unit 207, higher layer scheduling information input 208, etc., the scheduling unit 204 performs scheduling processing to map the uplink logical channel input from the highest layer 208 to the transport channel, and generating scheduling information used in scheduling in the uplink.
Additionally, as the uplink transport format, the unit 204 uses information notified from the base station apparatus 100. The scheduling information is provided to the data control unit 201. Additionally, the scheduling unit 204 maps the uplink logical channel input from the highest layer 208 to the transport channel to provide to the data control unit
201. In addition, the scheduling unit 204 also provides, to the data control unit 201, the CSI channel downlink state information input from the channel estimating unit 205, channel quality indicator Downlink CQI, PMI precoding matrix indicator 5, classification indicator RI, and CRC check result input from data extraction unit
207. Still further, the scheduling unit 204 processes the control and transport channel data obtained on the downlink input from the data extraction unit 207, when necessary, and then 10 maps the resultant to the channel. logical downlink to provide to the higher layer 208. For demodulation of downlink data, the channel estimation unit 205 estimates a downlink channel state from a downlink reference (RS) signal. ), and provides the estimated result to the receive data demodulation unit 206. In addition, in order to notify the base station apparatus 100 of the estimated result of the downlink channel state (channel state). radio), the channel estimation unit 205 estimates a downlink channel status of a downlink reference signal 20 (RS), and provides the estimated result to the scheduling unit 204 as the information of downlink CSI channel status, downlink CQI channel quality indicator, PMI precoding matrix indicator, and RI rating indicator. The receive data demodulation unit 206 demodulates the receive data modulated in the OFDM scheme. Based on the estimated downlink channel state result input from the channel estimation unit 205, the receive data demodulation unit 206 performs demodulation processing on the modulation data input of the radio unit 203 to provide to the data extraction unit 207. The data extraction unit 207 performs CRC on the data input from the receive data demodulation unit 206 to check whether there is an error or not, and provides the result of the verification (Positive Acknowledgment ACK / Negative Acknowledgment NACK) to the scheduling unit 204. Additionally, the data extraction unit 207 divides the input data from the receive data demodulation unit 206 into the transport control data channel. physical layer to provide to the scheduling unit 204. The split control data includes downlink or uplink resource allocation scheduling information uplink HARQ control information, etc. 10 Upper layer 208 performs Packet Data Convergence Protocol (PDCP) layer processing, Radio Link Control (RLC) layer, and Radio Resource Control (R-RC) layer. In order for the highest layer 208 to fully control the lower layer processing units, there are interfaces between the highest layer 208 and the scheduling unit 204, antenna 209, data control unit 201, transmit data modulation unit 202, channel estimation unit 205, receive data demodulation unit 206, data extraction unit 207, and radio unit 203 (although not shown). 20 The top layer 208 has a Radio Resource Control unit 210 (also called the control unit). The Radio Resource Control unit 210 performs management of various types of configuration information, system management information, paging control, mobile station 200 communication state management, transfer motion management, etc. , buffering buffer status management, unicast and multicast carrier connection configuration management, mobile station identifier (UEID) management, etc.
With Respect to the Downlink Radio Frame 30 FIGURE 4 is a schematic diagram showing an example of a downlink radio frame configuration in the Modalities.
In FIGURE 4, the horizontal axis represents the domain of time.
po, and the vertical axis represents the frequency domain.
As shown in FIGURE 4, the downlink radio frame is comprised of a plurality of physical resource block (PRB) pairs (shown by regions surrounded by dashed lines). This pair of physical resource blocks is a RB unit used in downlink radio resource allocation, and is comprised of a frequency domain (for example, PRB bandwidth: 180 kHz) and a time domain (eg two slots = one subframe (time period): 1 ms) that are predetermined. 10 Additionally, a pair of physical resource blocks is comprised of two downlink physical resource blocks (bandwidth PRB x gap) contiguous in the time domain.
A physical resource block (shown by regions surrounded by bold lines) is comprised of 12 subcarriers (15 kHz) in the frequency domain, although 15 is comprised of 7 OFDM (Orthogonal Frequency Division Multiplexing) symbols ) in the time domain.
In this document, in the time domain, there is an interval (0.5 ms) comprised of 7 OFDM symbols, a subframe (1 ms) comprised of 2 intervals, and a radio frame (10 ms) comprised of 10 sub- 20 frames .
Additionally, in the frequency domain, a plurality of physical resource blocks corresponding to the downlink bandwidth is determined.
Additionally, a unit comprised of a subcarrier and an OFDM symbol is also referred to as a downlink resource element. 25 PDCCH (shown by mesh lines), PDSCH (shown by white rectangles) and downlink reference signal (shown by black rectangles) are mapped to each downlink subframe.
The PDCCH is allocated from the first OFDM symbol of the subframe.
For example, the amount of OFDM symbols that is used to map the PDCCH is "1" to "3", and it is possible to map PDCCH of the amount of OFDM symbols varying for each subframe.
Downlink control information (DCI) including downlink scheduling information, uplink scheduling information, etc. is broadcast on the PDCCH.
For example, information indicative of a modulation scheme for PDSCH, information indicative of a coding scheme, information indicative of PDSCH resource allocation, information related to HARQ, TPC (Transmission Power Control) command , etc. they are transmitted on the PDCCH for the downlink.
However, for example, information indicative of a modulation scheme for the PUS-10 CH, information indicative of a coding scheme, information indicative of PUSCH resource allocation, information related to HARQ, TPC command, etc. they are transmitted on the PDCCH for the uplink.
In each subframe, the PDSCHs are mapped to the OFDM symbols except for the OFDM symbols where the PDCCH is mapped.
PDSCH 15 is used to transmit downlink data (or can be transport blocks for DL-SCH). Additionally, the downlink reference signals are mapped to an allocated PDSCH portion.
The downlink reference signals are allocated although they are spread in the frequency domain and time domain. 20 Regarding PDCCH The PDCCH will be described more specifically.
The PDCCH is composed of a single or a plurality of control channel elements (CCEs). The control channel element is comprised of a plurality of resource elements spread in the frequency domain and the time domain within a space to which the PDCCH is allocated.
Additionally, a plurality of control channel elements constitute a common search space and a user equipment specific search space.
The common search space is a space, which is common to a plurality of mobile station apparatus 200. And PDCCH for a plurality of mobile station apparatus and/or PDCCH for a particular mobile station apparatus 200 are allocated in the space of research co-
mum.
In this document, the common search space is comprised of predetermined control channel elements.
The user equipment specific research space is a space, in which PDCCH for a particular mobile station apparatus 200 is allocated.
And the user equipment specific search space 5 is determined for each mobile station apparatus 200. For the common search space and the user equipment specific search space, different spaces are determined for each quantity of control channel elements on which the PDCCH is allocated. 10 In this document, the common search space and a part or all of the user equipment specific search spaces may overlap each other.
Additionally, some or all of the different common search spaces can overlap each other.
Furthermore, a part or all of 15 different user equipment specific search spaces for the same mobile station apparatus 200 may overlap each other.
Still further, a part or all of the user equipment specific search spaces for different mobile station apparatus 200 may overlap each other.
Additionally, the common research space and/or the user equipment-specific research space 20 (which can be the starting points of the common research space and/or the starting points of the user equipment-specific research space. user) can be calculated by the mobile station apparatus 200 based on a parameter (e.g. subframe index in which the PDCCH is transmitted, C-RNTI, DCC specific index provided for each DLCC, etc.) determined to from the base station apparatus 100. In addition, a downlink component carrier can be determined in which the common search space and/or the user equipment specific search space is allocated in the mobile station apparatus 200 by the base station apparatus 100. For example, the base station apparatus 100 is capable of determining the downlink component carrier, wherein the common search space and/or the user equipment specific search space. are allocated, in the mobile station apparatus 200 to each mobile station apparatus 200 and/or to each Downlink Component Carrier.
Furthermore, a plurality of formats are defined for downlink control information (DCI) transmitted on the PDCCH.
The downlink control information format is also referred to as a DCI format.
For example, as DCI formats for the uplink, the DCI format 0 used in the case where the mobile station apparatus 200 transmits on the PUSCH with a transmit antenna port is defined, the DCI format 0A used in the case in that the mobile station apparatus 200 transmits on the PUSCH in MIMO (Multiple Inputs, Multiple Outputs) SM (Spatial Multiplexing), and so on.
However, as DCI formats for the downlink, DCI format 1 and DCI format 1A used in the case where base station apparatus 100 transmits on PDSCH using a transmit antenna port, or diversity scheme, are defined. transmission with a plurality of transmit antenna ports, the DCI format 2 used in the case where the base station apparatus 100 transmits on PDSCH in MIMO SM, and so on.
For DCI formats, formats with the same amount of bits and formats with different amounts of bits are defined.
Downlink control information is transmitted by the base station apparatus with Cyclic Redundancy Check (CRC) encoded by RNTI (Temporary Radio Network Identity). Here, the CRC is generated based on downlink control information (DCI). The mobile station apparatus 200 changes the interpretation of the downlink control information which corresponds to which RNTI is encoded for the Cyclic Redundancy Check.
For example, in the case where the Cyclic Redundancy Check is encoded by the C-RNTI (Radio Cell Network Temporary Identity) which is designated from 30 of the base station apparatus 100, the mobile station apparatus 200 holds - undermines that the downlink control information is downlink control information for the mobile device 200 itself.
Additionally, the base station apparatus 100 encodes the downlink control information according to the quantity of bits of the control channel element. And the base station apparatus 100 allocates the downlink control information in the common search space or in the user equipment specific search space. In this document, the base station apparatus 100 performs the same encoding in the DCI formats with the same amount of bits, while performing different encoding in the DCI formats with the different amounts of bits. In other words, the encoding schemes that the base station apparatus 10 applies for the DCI formats are different corresponding to the amount of bits of the DCI format, and therefore the DCI format decoding methods are different in the mobile station device
200. In other words, the mobile station apparatus 200 is able to determine the type of DCI format from the amount of bits of the DCI format and/or the difference in the decoding method. In this document, in the case where the bit amounts of DCI formats are the same, the DCI formats include information to determine the type of DCI format. Alternatively, using the addition method the Cyclic Redundancy Check 20 encoded by the RNTI associated with the DCI format type and so on, the mobile station apparatus 200 is allowed to determine the DCI format type. The mobile station apparatus 200 performs decoding processing on all candidate spaces in which the PDCCH is allocated, in the common search space and in the user equipment specific search space. Additionally, the mobile station apparatus 200 decodes the sequence which is the Cyclic Redundancy Check encoding by the RNTI, using the RNTI. And in the case where the mobile station apparatus 200 detects that there is no error by the Cyclic Redundancy Check 30 decode, it determines that acquisition (detection) of the PDCCH is successful. This processing is referred to as blind decoding.
The base station apparatus 100 allocates the PDCCH with the C-RNTI in the common search space and/or in the user equipment specific search space. For example, base station apparatus 100 allocates the PDCCH in user equipment specific search space 5 to mobile station apparatus 200 to which the C-RNTI is assigned. The mobile station apparatus 200 blindly decodes the PDCCH with the C-RNTI in the common search space and/or in the user equipment specific search space. Additionally, the base station apparatus 100 is capable of locating, in the common search space, the PDCCH with P-RNTI (Temporary Radio Network Identity) used in scheduling of paging information, the PDCCH with SI-RNTI (System Information- Temporary Radio Network Identity) used in scheduling system information, and PDCCH with RA-RNTI (Random Access- 15 Temporary Radio Network Identity) used in scheduling res - random access post. The mobile station apparatus 200 blindly decodes the PDCCH with the P-RNTI, the PDCCH with the SI-RNTI, and the PDCCH with the RA-RNTI in the common search space. Modality 1 20 Next, Modality 1 in the mobile communication system using the base station apparatus 100 and mobile station apparatus is described.
200. In Modality 1, base station apparatus 100 transmits a first parameter to designate a first region in which mobile station apparatus 200 is capable of using the PUCCH for mobile station apparatus 200, and additionally transmits a second parameter to designate a second region different from the first region in which the mobile station apparatus 200 is capable of using the PUCCH to the mobile station apparatus 200, and which corresponds to a search space in which the mobile station apparatus 200 detects the PDCCH, the mobile station apparatus 200 30 transmits the HARQ control information to the base station apparatus 100 using the first region or the second region. Additionally, base station apparatus 100 transmits a first parameter to designate a first region in which mobile station apparatus 200 is capable of using the PUCCH to mobile station apparatus 200, and further transmits a second parameter to designate a second region. different from the first region in which the mobile station apparatus 200 is capable of using the PUCCH to the mobile station apparatus 200, and the mobile station apparatus 200 transmits the HARQ control information to the mobile station apparatus. base station 100 using the first region in case of detecting a plurality of PDCCHs in the user equipment specific search space and/or in the common search space, 10 while transmitting the HARQ control information to the base station apparatus 100 using the first region or the second region in case of detecting a PDCCH in the user equipment specific search space and/or the common search space.
Furthermore, the base station apparatus 100 transmits a first parameter to designate a first region in which the mobile station apparatus 200 is capable of using the PUCCH for the mobile station apparatus 200, and further transmits a second parameter to designating a second region different from the first region in which the mobile station apparatus 200 is capable of using the PUCCH for the mobile station apparatus 200, and the mobile station apparatus 200 transmits the HARQ control information to the base station apparatus 100 using the first region in the case of detecting a PDCCH in the user equipment specific search space, while transmitting the HARQ control information to the base station apparatus 100 using the second region in the case of 25 detect a PDCCH in the common search space.
Still further, base station apparatus 100 transmits a first parameter to designate a first region in which mobile station apparatus 200 is capable of using the PUCCH to mobile station apparatus 200, and further transmits a second parameter to designate 30 a second region different from the first region in which the mobile station apparatus 200 is capable of using the PUCCH for the mobile station apparatus 200, and the mobile station apparatus 200 transmits the information.
trolley HARQ to the base station apparatus 100 using the first region in the case of detecting a plurality of PDCCHs in the user equipment-specific search space and/or in the common search space or detecting a PDCCH in the equipment-specific search space 5 while transmitting the HARQ control information to the base station apparatus 100 using the second region in case it detects a PDCCH in the common search space.
In addition, base station apparatus 100 transmits a first parameter to designate a first region in which mobile station apparatus 200 is capable of using a first transmission format for mobile station apparatus 200, and additionally transmits a second parameter to designate a second region different from the first region in which the mobile station apparatus 200 is capable of using a second transmission format to the mobile station apparatus 200, and which corresponds to a space of in which the mobile station apparatus 200 detects the PDCCH, the mobile station apparatus 200 transmits the HARQ control information to the base station apparatus 100 using the first broadcast format or the second broadcast format.
Additionally, base station apparatus 100 transmits a first parameter to designate a first region in which mobile station apparatus 200 is capable of using a first transmission format for mobile station apparatus 200, and additionally transmits a second parameter for designating a second region different from the first region in which the mobile station apparatus 200 is capable of using a second transmission format for the mobile station apparatus 200, and the mobile station apparatus 200 transmits the control information HARQ to the base station apparatus 100 using the first transmission format in case of detecting a plurality of PDCCHs in the user equipment specific search space and/or the common search space, while 30 transmits the HARQ control information to the base station apparatus 100 using the first transmission format or the second transmission format in case of detecting a PDCCH in the forward search space. eci-
I get user equipment and/or the common search space.
In addition, base station apparatus 100 transmits a first parameter to designate a first region in which mobile station apparatus 200 is capable of using a first transmission format for mobile station apparatus 200, and additionally transmits a second parameter to designate a second region different from the first region in which the mobile station apparatus 200 is capable of using a second transmission format to the mobile station apparatus 200, and the mobile station apparatus 200 transmits the information. control information to the base station apparatus 100 using the first transmission format in case of detecting a PDCCH in the user equipment specific search space, while transmitting the HARQ control information to the base station apparatus 100 using the second transmission format in case of detecting a PDCCH in the common search space. Still further, base station apparatus 100 transmits a first parameter to designate a first region in which mobile station apparatus 200 is capable of using a first transmission format for mobile station apparatus 200, and additionally transmits a second parameter to designate a second region different from the first region 20 wherein the mobile station apparatus 200 is capable of using a second transmission format to the mobile station apparatus 200, and the mobile station apparatus 200 transmits the HARQ control information for the base station apparatus 100 using the first transmission format in case it detects a plurality of PDCCHs in the user equipment specific search space 25 and/or the common search space or detects one. PDCCH in the user equipment specific search space, while transmitting the HARQ control information to the base station apparatus 100 using the second transmission format in the case of detecting a PDCCH in the common search space. In this document, the mobile station apparatus 200 detects a PDCCH means that the mobile station apparatus 200 detects the PDCCH for the mobile station apparatus 200 itself. In addition, the HARQ control information transmitted from the mobile station apparatus 200 includes information. ACK/NACK indicative for the PDCCH and/or the downlink transport block transmitted from the base station apparatus 100 and/or DTX indicative information.
The information indicative of DTX is information 5 indicating that the mobile station apparatus 200 was not able to detect the PDCCH transmitted from the base station apparatus 100 (or it may be information indicating whether the mobile station apparatus 200 was able to detect the PDCCH). Additionally, the first parameter transmitted from the base station apparatus 100 to the mobile station apparatus 200 includes information indicative of a bandwidth (PUCCH resource region bandwidth) to designate the first region in which the mobile station apparatus - vel 200 is able to use PUCCH.
In addition, the first parameter includes information (which may be information regarding the orthogonal resource or information that is used to calculate the orthogonal resource) to indicate the orthogonal resource to designate the first region in which the mobile station apparatus 200 is able to use PUCCH.
Furthermore, the first parameter includes information indicative of a bandwidth (PUCCH resource region bandwidth) at which the mobile station apparatus 200 is capable of using the first transmission format.
Still further, the first parameter includes information (which may be information regarding the orthogonal resource or information that is used to calculate the orthogonal resource) to indicate the orthogonal resource that the mobile station apparatus 200 is capable of using the first. 25 broadcast format.
Furthermore, the second parameter transmitted from the base station apparatus 100 to the mobile station apparatus 200 includes information indicative of a bandwidth (bandwidth of the PUCCH resource region) to designate the second region in which the mobile station apparatus 200 is capable of using the PUCCH.
Additionally, the second parameter includes information (which can be information regarding the orthogonal feature or information that is used to calculate the orthogonal feature) for indi-
use the orthogonal feature to designate the second region in which the mobile station apparatus 200 is capable of using the PUCCH.
Additionally, the second parameter includes information indicative of a bandwidth (bandwidth of resource region PUC-5CH) in which the mobile station apparatus 200 is capable of using the second transmission format.
In addition, the second parameter includes information (which may be information regarding the orthogonal resource or information that is used to calculate the orthogonal resource) to indicate the orthogonal resource at which the mobile station apparatus 200 is capable of using the second. 10 broadcast format.
In the following description, in this Modality, the frequency band is defined using a bandwidth (Hz), but it can be defined using the amount of resource blocks (RBs) comprised of frequency and time.
In other words, bandwidth can be set using 15 amount of resource blocks.
Additionally, the bandwidth and the number of resource blocks can be defined using the number of subcarriers.
The component carrier in this Modality indicates a (narrowband) frequency band which is used in a composite manner in the case where the base station apparatus 100 and the mobile station apparatus 200 communicate with each other in a communication system which has the widest frequency band (which can be a system band). The (wider) frequency band (eg a frequency band with a bandwidth of 100 MHz) is configured by aggregating a plurality of component carriers (eg five component carriers each with a width in the 20 MHz band), and the base station apparatus 100 and the mobile station apparatus 200 use the plurality of component carriers in a composite manner, and are thereby capable of obtaining high-speed data communication ( transmission and reception of information). The component carrier indicates each of the (narrowband) frequency bands (eg frequency band with a bandwidth of 20 MHz) that make up the wider frequency band (eg frequency band with a bandwidth 100 MHz). Additionally, the component carrier may indicate the (central) carrier frequency of each of the (narrow band) frequency bands.
In other words, a downlink component carrier has a band (bandwidth) of a portion of usable frequency bands in the case where the base station apparatus 100 and the mobile station apparatus 200 transmit and receive downlink information, and an uplink component carrier has a band (bandwidth 10) of a portion of frequency bands usable in the case where the base station apparatus 100 and the mobile station apparatus 200 transmit and receive uplink information.
Additionally, the component carrier can be defined as a unit in which a particular physical channel (eg, PDCCH, PUCCH, etc.) is configured. Additionally, component carriers can be mapped to contiguous frequency bands, or they can be mapped to non-contiguous frequency bands.
A plurality of component carriers that are contiguous and/or non-contiguous frequency bands are aggregated to form the broader frequency band, and base station apparatus 100 20 and mobile station apparatus 200 use the plurality of component carriers in a composite manner, and are thereby able to obtain high speed data communication (transmission and reception of information). Furthermore, it is not necessary that the frequency band used in downlink communications comprised of component carriers and the frequency band used in uplink communications comprised of component carriers have the same bandwidth, and the base station apparatus 100 and the mobile station apparatus 200 are capable of performing communications using the downlink frequency band and the uplink frequency band with different comprised bandwidths of component carriers in a composite manner (carrier aggregation asymmetric as described above). FIGURE 5 is a diagram showing an example of a mobile communication system for which Modality 1 is applicable.
Modality 1 is applicable for both a symmetric carrier aggregation mobile communication system and an asymmetric carrier aggregation mobile communication system.
Additionally, in the following description, as an example, only an augmented part of component carriers is described, but as usual, it is possible to apply the Modality to all component carriers. As an example to explain Modality 1, FIGURE 5 shows three downlink component carriers (DCC1, DCC2 and DCC3). Additionally, FIGURE 5 shows three uplink component carriers (UCC1, UCC2 and UCC3). In FIGURE 5, base station apparatus 100 designates (schedule 15) (one or a plurality of) PDSCHs in the same subframe, using (one or a plurality of) PDCCHs on the downlink component carriers.
The base station apparatus 100 is capable of designating the PDSCH on the same component carrier as the component carrier onto which the PDCCH is mapped.
In FIGURE 5, as an example, it is shown by solid lines that the base station apparatus 100 uses the PDCCH (PDCCH shown by diagonal lines) in DCC1, and designates the PDSCH in DCC1. Additionally, it is shown by solid lines that base station apparatus 100 uses the PDCCH (PDCCH shown by grid lines) in DCC2, and 25 designates the PDSCH in DCC2. Furthermore, it is shown by solid lines that the base station apparatus 100 uses the PDCCH (PDCCH shown by mesh lines) in DCC3, and designates the PDSCH in DCC3. Additionally, the base station apparatus 100 is capable of assigning the PDSCH on a component carrier that is the same or different from the component carrier on which the PDCCH is mapped.
For example, base station apparatus 100 transmits a carrier indicator field (CIF, e.g., information field represented by three bits) in the
PDCCH to the mobile station apparatus 200, and is thereby able to designate the PDSCH allocated to a component carrier which is the same or different from the component carrier to which the PDCCH is mapped.
In other words, the base station apparatus 100 is capable of transmitting, in the PDCCH, the carrier indicator field to indicate the component carrier to which the PDCCH designating the PDSCH is mapped.
The base station apparatus 100 transmits the carrier indicator field on the PDCCH to the mobile station apparatus 200, and thereby designates the PDSCH on the same or different as the component carrier to which the PDCCH 10 is mapped.
In this document, it is defined in advance that the value of the carrier indicator field transmitted in the PDCCH of the base station apparatus 100 indicates which component carrier is mapped onto which the PDC-CH designates the PDSCH, and this definition is made known information en. 15 between the base station apparatus 100 and the mobile station apparatus 200. For example, the base station apparatus 100 transmits the carrier indicator field that indicates some specific value (e.g., the information field represented by three bits indicates "000") in the PDCCH for the mobile station apparatus 200, and thereby designates, for the mobile station apparatus 200, the PDSCH on the same component carrier as the component carrier on which the PDCCH is mapped.
Additionally, the base station apparatus 100 transmits the carrier indicator field which indicates a value other than the specific value (for example, the information field represented by three bits indicates a value other than "000") in the PDC-25 CH for the mobile station apparatus 200, and thereby designates, to the mobile station apparatus 200, the PDSCH on the carrier component different from the carrier component on which the PDCCH is mapped.
In FIGURE 5, as an example, it is shown by dotted lines that the base station apparatus 100 uses the PDCCH (PDCCH shown by diagonal lines) in DCC1, and designates the PDSCH in DCC2. Additionally, it is shown by dotted lines that the base station apparatus 100 uses the PDCCH (PDCCH shown by grid lines) in the DCC2, and de-
means the PDSCH in DCC1. Furthermore, it is shown by dotted lines that the base station apparatus 100 uses the PDCCH (PDCCH shown by mesh lines) in DCC3, and designates the PDSCH in DCC3. Additionally, the base station apparatus 100 is capable of configuring configuration information that indicates whether or not to transmit the carrier indicator field in the PDCCH for each mobile station apparatus 200. For example, the base station apparatus 100 transmits the information. tion indicating whether or not to transmit the carrier indicator field on the PDCCH using the RCC signaling to configure in the mobile station apparatus 200. In other words, since the configuration of whether or not to transmit the carrier indicator field on the PDCCH is performed for each mobile station apparatus 200, the carrier indicator field is not transmitted on the PDCCH in the common search space which is a common space for a plurality of mobile station apparatus 200. In addition, the base station apparatus 100 is able to configure information indicating whether or not to transmit the carrier indicator field in the PDCCH for each component carrier.
For example, base station apparatus 100 transmits information indicating whether or not to transmit the carrier indicator field in the PDCCH using RCC signaling for each component carrier configured in the mobile station apparatus 200. In FIGURE 5, the apparatus The base station 100 transmits the downlink transport block to the mobile station apparatus 200 using the PDSCH designated by the PDCCH.
For example, the base station apparatus 100 uses the PDSCHs designated respectively as PDCCHs 25 in DCC1, DCC2 and DCC3, and transmits the downlink transport blocks (for example, up to three blocks) in the same subframe. to the mobile station apparatus 200. In this document, the base station apparatus 100 is capable of configuring a correspondence (link) between the downlink component carrier and the uplink component carrier specifically for the cell.
For example, the base station apparatus 100 is capable of configuring the correspondence between the downlink component carrier and the uplink component carrier in the mobile station apparatus 200 using broadcast information (broadcast channel). Additionally, the base station apparatus 100 is capable of configuring the correspondence between the downlink component carrier and the uplink component carrier specifically for the mobile station apparatus.
For example, the base station apparatus 100 is capable of configuring the correspondence between the downlink component carrier and the uplink component carrier in the mobile station apparatus 200 using RCC signaling.
In FIGURE 5, the mobile station apparatus 200 uses the PUSCH designated by the PDCCH (which also means an uplink transmit permission signal) transmitted from the base station apparatus 100, and transmits the uplink transport block (which also 15 means the UL-SCH-related transport block) for the base station apparatus 100. For example, the mobile station apparatus 200 uses the PUSCHs respectively in the UCC1, the UCC2 and the UCC3, and transmits the link transport blocks (for example, up to three blocks) in the same subframe to the base station apparatus 100. Additionally, the mobile station apparatus 200 transmits, to the base station apparatus 100, the HARQ control information for the PDCCH and / or the downlink transport block transmitted from the base station apparatus 100 using the PUCCH.
In this document, the base station apparatus 100 is capable of configuring an uplink component carrier for the mobile station apparatus 200 to transmit HARQ control information in the mobile station apparatus 200. For example, the station apparatus base 100 is capable of configuring an uplink component carrier to the mobile station apparatus 200 to transmit the HARQ control information in the mobile station apparatus 200 using RCC signaling.
As an example, FIGURE 5 shows that base station apparatus 100 configures UCC2 as the uplink component carrier for mobile station apparatus 200 to transmit HARQ control information.
The mobile station apparatus 200 uses the PUCCH in the UCC2 determined by the base station apparatus 100 to transmit the HARQ control information. 5 In FIGURE 5, the dotted-line region of the PUCCH (PUCCH region feature shown by diagonal lines) in UCC2 conceptually shows the PUCCH in UCC2. In this document, to make the description easy to understand, the horizontal direction represents frequency resources (or may represent bandwidth), and orthogonal resources, described later, are not described.
In FIGURE 5, base station apparatus 100 transmits the first parameter to designate the first region (region B shown from RB3 to RB5) to enable mobile station apparatus 200 to use PUCCH.
In other words, the base station apparatus 100 assigns the first region to the mobile station apparatus 200 to transmit the HARQ control information among the PUCCH resource region in the UCC2. For example, base station apparatus 100 transmits the first parameter using RCC signaling, and thereby designates the first region specifically to the mobile station apparatus.
Additionally, for example, base station apparatus 100 transmits the first parameter using the broadcast channel, and thereby designates the first region specifically for the cell.
For example, the base station apparatus 100 transmits information indicative of the PUCCH resource bandwidth as the first parameter, and thereby designates the first region to the mobile station apparatus 200. Additionally, for example, the base station apparatus 100 transmits information to indicate the orthogonal resource, described below, as the first parameter, and thereby designates the first region to mobile station apparatus 200. In this document, base station apparatus 100 may notify (set) a start position of the first region as the first parameter to designate the first region.
However, the mobile station apparatus 200 is also capable of identifying a region A (region A shown by RB1 and RB2) by receiving the first parameter from the base station apparatus 100. Additionally, in FIGURE 5, the station apparatus base 100 transmits the second parameter to designate the second region (region C shown by from RB6 to RB8) to enable the mobile station apparatus 5200 to use the PUCCH.
In other words, the base station apparatus 100 is capable of assigning the second region to the mobile station apparatus 200 to transmit the HARQ control information within the PUCCH resource region.
For example, base station apparatus 100 transmits the second parameter using RCC signaling, and thereby designates the second region specifically to the mobile station apparatus.
Additionally, for example, base station apparatus 100 transmits the second parameter using the broadcast channel, and thereby designates the second region specifically to the cell.
For example, the base station apparatus 100 transmits information indicative of the PUCCH resource bandwidth as the second parameter, and thereby designates the second region to the mobile station apparatus 200. Additionally, for example, the base station apparatus 100 transmits information to indicate the orthogonal resource, described below, as the second parameter, and thereby designates the second region to mobile station apparatus 200. In this document, base station apparatus 100 can notify (set) a start position of the second region as the second parameter to designate the second region.
For example, in FIGURE 5, base station apparatus 100 is capable of transmitting the first parameter to designate the first region to enable mobile station apparatus 200 to use PUCCH for mobile station apparatus 200 using the RCC signaling, while transmitting the second parameter to designate the second region to enable the use of PUCCH for the mobile station apparatus 200 using the broadcast channel.
The base station apparatus 100 therefore designates the first parameter 30 and the second parameter, and is thereby able to configure, in the mobile station apparatus 200, the first region to enable the use of PUCCH for each mobile station apparatus 200, and the second region to enable the use of PUCCH for each cell.
Therefore, the base station apparatus configures the first region and/or second region specifically for the mobile station apparatus and/or for each cell, and, for example, thereby is able to configure (reserve) the first region. to be greater in the case where the amount of mobile station apparatus 200 communicating using a plurality of component carriers is greater, while setting (reserve) the second region to be greater in the case where the amount of station apparatus mobile 200 that communicate using a 10 component carrier is larger.
Additionally, in FIGURE 5, base station apparatus 100 is capable of assigning the PUCCH to mobile station apparatus 200 to transmit HARQ control information using RCC signaling.
In other words, the base station apparatus 100 is capable of indicating, to the mobile station apparatus 200, the PUCCH resource in the region that is used to transmit the HARQ control information in each of the first region and second region designated to the mobile station apparatus 200, using RCC signaling.
Furthermore, the base station apparatus 100 is capable of assigning the PUCCH to the mobile station apparatus 200 to transmit the HARQ control information while associated with the PDCCH.
In other words, the base station apparatus 100 is capable of indicating, to the mobile station apparatus 200, the PUCCH resource in the region that is used to transmit the HARQ control information in each of the first region and the second region. assigned to the mobile station apparatus 200 while associated with the PDCCH.
For example, base station apparatus 100 is capable of indicating, to mobile station apparatus 200, the PUCCH resource in the region that is used to transmit HARQ control information in each of the first region and second region, associating with a position of the PDCCH on the downlink component carrier in the PDCCH resource region.
In other words, the mobile station apparatus 200 maps the HARQ control information to the PUCCH resource in each of the first region and the second region, which corresponds to the position of the PDCCH transmitted from the base station apparatus 100 in the PDCCH resource region. .
In this document, the correspondence between the PDCCH transmitted from the base station apparatus 100 and the PUCCH resource in each of the first region and the second region is, for example, specified by associating an index of the first CCE of CCEs constituting the PDCCH with an index of the PUCCH resource in each of the first region and the second region.
In FIGURE 5, using the PUCCH resource designated by the base station apparatus 100, the mobile station apparatus 200 transmits the HARQ control information to the base station apparatus 100. In this document, the mobile station apparatus 200 transmits the HARQ control information to the base station apparatus 100 using the PUCCH resource in the first region or the PUCCH resource in the second space, which corresponds to a search space in which the mobile apparatus 200 detects the PDCCH in certain subframe.
In other words, the base station apparatus 100 allocates the PDCCH in the search space (the search space defined in the PDCCH resource region). And the mobile station apparatus 200 transmits the HARQ control information to the base station apparatus 100 using the PUCCH resource in the first region or the PUCCH resource in the second region, which corresponds to the search space in which the PDCCH is detected .
Additionally, using region A (region A shown by RB1 and RB2), for example, mobile station apparatus 200 can transmit the CSI and CQI to base station apparatus 100. Additionally, in FIGURE 5, in the case at whereas the mobile station apparatus 200 detects a plurality of PDCCHs in the user equipment specific search space and/or the common search space in certain subframe, the mobile station apparatus 200 transmits the HARQ control information using the first region.
In other words, the base station apparatus 100 allocates a plurality of PDCCHs in the user equipment specific search space and/or in the common search space, and in the case where the mobile station apparatus 200 detects.
For the plurality of PDCCHs in the user equipment specific search space and/or in the common search space, the mobile station apparatus 200 transmits the HARQ control information using the first region. 5 For example, in FIGURE 5, in the case where the mobile station apparatus 200 detects a plurality of PDCCHs in the user equipment specific search space and/or in the common search space of each of DCC1, DCC2 and DCC3, mobile station apparatus 200 transmits HARQ control information using the first region.
Additionally, for example, in the case where the mobile station apparatus 200 detects a plurality of PDCCHs in the user equipment specific search space and/or in the common search space of the DCC2, the mobile station apparatus 200 transmits the HARQ control information using the first region. Additionally, in FIGURE 5, in the case where the mobile station apparatus 200 detects a PDCCH in the user equipment specific search space and/or the common search space in certain subframe, the mobile station apparatus 200 transmits the HARQ control information using the first region or the second region.
In other words, the base station apparatus 100 allocates a PDCCH in the user equipment specific search space and/or the common search space, and in the case where the mobile station apparatus 200 detects the one PDCCH in the user equipment-specific search space and/or in the common search space, the mobile station apparatus 200 transmits the HARQ control information using the first region or the second region.
In this document, in the case where the mobile station apparatus 200 detects a PDCCH in the user equipment specific search space, the mobile station apparatus 200 transmits the HARQ control information using the first region.
In other words, the base station apparatus 100 allocates a PDCCH in the user equipment specific search space, and in the case where the mobile station apparatus 200 detects the one PDCCH in the equipment specific search space.
In user data, the mobile station apparatus 200 transmits the HARQ control information using the first region.
However, in the case where the mobile station apparatus 200 detects a PDCCH in the common search space, the mobile station apparatus 200 transmits the HARQ control information using the second region.
In other words, the base station apparatus 100 allocates a PDCCH in the common search space, and in the case that the mobile station apparatus 200 detects the one PDCCH in the common search space, the mobile station apparatus 200 transmits the information. HARQ control using the 10 second region.
For example, in FIGURE 5, in the case where the mobile station apparatus 200 detects a PDCCH in the user equipment specific search space of the DCC2, the mobile station apparatus 200 transmits the HARQ control information using the first region.
However, in the case where the mobile station apparatus 200 detects a PDCCH in the common search space of the DCC2, the mobile station apparatus 200 transmits the HARQ control information using the second region.
In other words, the mobile station apparatus 200 transmits the HARQ control information for a plurality of PDCCHs detected in the user equipment specific search space and/or the common search space and/or the transport blocks. downlink transmitted on a plurality of PDSCHs (designated a plurality of PDCCHs) to the base station apparatus 100, using the first region. Additionally, the mobile station apparatus 200 transmits HARQ control information to a PDCCH detected in the user equipment specific search space and/or downlink transport block transmitted in a PDSCH (designated by a PDC-CH) to the base station apparatus 100, using the first region. In other words, in the case where the mobile station apparatus 200 detects a plurality of PDCCHs in the user equipment specific search space and/or in the common search space in some subframe, or in the case where the mobile station apparatus 200 detects a PDCCH in the user equipment specific search space, the mobile station apparatus 200 transmits the HARQ control information using the first region. 5 Meanwhile, the mobile station apparatus 200 transmits the HARQ control information for a PDCCH detected in the common search space and/or in the downlink transport block transmitted in a PDSCH (referred to as a PDCCH) to the base station apparatus 100, using the second region. [0183] In this document, in the case where a PDC-CH which is used to designate a PDSCH on a specific downlink component carrier in the common search space in certain subframe is detected, the mobile station apparatus 200 can transmit the HARQ control information for the base station apparatus 100 using the second region.
In other words, in the case where the base station apparatus 100, in a certain subframe, designates (schedule) a PDCCH in the common search space, and designates (schedule) a PDSCH in the specific downlink component carrier, the apparatus of mobile station 200 can transmit HARQ control information using the second region.
Namely, in the case where the mobile station apparatus 200 detects, in the common search space, a PDCCH that is used to designate (schedule) a PDSCH on the downlink specific component carrier, the mobile station apparatus 200 can transmit HARQ control information 25 using the second region.
In this document, the base station apparatus 100 is able to configure the specific downlink component carrier in the mobile station apparatus 200. In other words, in the case where the base station apparatus 100 designates (schedule) the PDSCH in the carrier-specific downlink component determined in the mobile station apparatus 200 using the PDCCH in the common search space, and the mobile station apparatus 200 detects, in the common search space, the PDC-
CH which is used to designate the PDSCH on the downlink specific component carrier determined by the base station apparatus 100, the mobile station apparatus 200 can transmit the HARQ control information using the second region. For example, the base station apparatus 100 is capable of configuring the specific downlink component carrier in the mobile station apparatus 200 specifically for the cell, using the broadcast information (the broadcast channel). Additionally, for example, the base station apparatus 100 is capable of configuring the downlink specific component carrier in the mobile station apparatus 200 specifically for the mobile station apparatus, using RCC signaling.
In other words, in the case where the mobile station apparatus 200 detects a PDCCH, it is used to designate a PDSCH except for the specific downlink component carrier determined by the base station apparatus 100 in the space of In common search, the mobile station apparatus 200 can transmit the HARQ control information using the first region.
However, in the case where the mobile station apparatus 200 detects a PDCCH, which is used to designate a PDSCH on the downlink specific component carrier determined by the base station apparatus 100, in the common search space, the mobile station 200 transmits HARQ control information using the second region.
For example, in FIGURE 5, in the case where DCC2 is determined as the downlink specific component carrier using the broadcast information (the broadcast channel) of the base station apparatus 100, and in the case in that the PDCCH detected in the common search space of DCC1 and/or DCC2 and/or DCC3 is used to designate (schedule) the PDSCH except for DCC2, the mobile station apparatus 200 can transmit the HARQ control information using the first region. Further, for example, in the case where DCC2 is determined as the downlink component-specific carrier using the RCC signaling from base station apparatus 100, and in the case where PDCCH is detected in the common search space of DCC1 and/or DCC2 and/or DCC3 is used to designate (schedule) PDSCH except for DCC2, mobile station apparatus 200 can transmit HARQ control information using the first region. 5 However, in FIGURE 5, in the case where DCC2 is determined as the specific downlink component carrier using the broadcast information (the broadcast channel) of the base station apparatus 100, and in the case where the PDCCH detected in the common search space of DCC1 and/or DCC2 and/or DCC3 is used to designate (schedule) the 10 PDSCH in DCC2 (PDSCH transmission only in DCC2), mobile station apparatus 200 can transmit the information HARQ control using the second region.
Additionally, for example, in the case where DCC2 is determined as the downlink specific component carrier 15 using the RCC signaling from base station apparatus 100, and in the case where PDCCH is detected in the common search space of DCC1 and/or the DCC2 and/or the DCC3 is used to designate (schedule) the PDSCH in the DCC2 (the transmission of PDSCH only in the DCC2), the mobile station apparatus 200 can transmit the HARQ control information using the second region. to.
Further, in FIGURE 5, base station apparatus 100 and mobile station apparatus 200 are capable of configuring, as the specific downlink component carrier, a downlink component carrier associated with a component downlink carrier. 25 uplink configured, by the base station apparatus 100, as the Uplink Component Carrier in which the HARQ control information is transmitted using the PUCCH.
In other words, in the case where the mobile station apparatus 200 detects a PDCCH, it is used to designate a PDSCH except 30 for the downlink component carrier associated with the uplink component carrier determined by the base station 100 as the uplink component carrier on which the HARQ control information is transmitted, in the common search space, the mobile station apparatus 200 can transmit the HARQ control information using the first region.
However, in the case where the mobile station apparatus 200 5 detects a PDCCH, it is used to designate a PDSCH on the downlink component carrier associated with the uplink component carrier determined by the base station apparatus 100 as the component carrier of uplink where the HARQ control information is transmitted, in the common search space, the mobile station apparatus 200 transmits the HARQ control information using the second region.
For example, in FIGURE 5, in the case where the association with the DCC2 and the UCC2 is determined using the broadcast information (the broadcast channel) of the base station apparatus 100, and in the case where the PDCCH 15 is detected in space The common search function of DCC1 and/or DCC2 and/or DCC3 is used to designate (schedule) the PDSCH except for DCC2, the mobile station apparatus 200 can transmit the HARQ control information using the first region.
Additionally, for example, in FIGURE 5, in the case where the association with the DCC2 and the UCC2 is determined using the RCC signaling from the base station apparatus 100, and in the case where the PDCCH is detected in the common search space of DCC1 and/or of DCC2 and/or of DCC3 is used to designate (schedule) PDSCH except for DCC2, mobile station apparatus 200 can transmit HARQ control information using the first region.
However, for example, in FIGURE 5, in the case where the association with the DCC2 and the UCC2 is determined by using the broadcast information (the broadcast channel) of the base station apparatus 100, and in the case where the PDCCH detected in the common search space of the DCC1 and/or the DCC2 and/or the DCC3 is used to designate (schedule) the PDSCH in the DCC2 (the transmission of the PDSCH only in the DCC2), the mobile station apparatus 200 can transmit the HARQ control information using the second region
to.
Additionally, for example, in FIGURE 5, in the case where association with DCC2 and UCC2 is determined using RCC signaling from base station apparatus 100, and in case where PDCCH detected in common search space of the DCC1 and/or the DCC2 and/or the DCC3 is used to designate (schedule) the PDSCH in the DCC2 (the transmission of the PDSCH only in the DCC2), the mobile station apparatus 200 can transmit the HARQ control information using the second region .
In this document, as described above, in FIGURE 5, the base station apparatus 100 configures the UCC2 as the uplink component carrier for the mobile station apparatus 200 to transmit the HARQ control information.
Additionally, in FIGURE 5, in the case where the mobile station apparatus 200 transmits the HARQ control information using the PUCCH resource in the first region, the mobile station apparatus 200 transmits the HARQ control information to the apparatus. of base station 100 using the first broadcast format.
In other words, base station apparatus 100 transmits, to mobile station apparatus 200, the first parameter to designate the first region to enable mobile station apparatus 200 to use the first transmission format.
And the mobile station apparatus 200 transmits the HARQ control information to the base station apparatus 100 using the first transmission format in the PUCCH resource in the first region.
Additionally, in the case where the mobile station apparatus 200 transmits the HARQ control information using the PUCCH resource in the second region, the mobile station apparatus 200 transmits the HARQ control information to the base station apparatus 100 using the second format. of transmission.
In other words, the base station apparatus 100 transmits, to the mobile station apparatus 200, the second parameter 30 to designate the second region, which is different from the first space, to enable the mobile station apparatus 200 to use the second format. of transmission.
And the mobile station apparatus 200 transmits the HARQ control information to the base station apparatus 100 using the second transmission format in the PUCCH resource in the second region.
In other words, in the case where the mobile station apparatus 200 detects a plurality of PDCCHs in the user equipment specific search space and/or in the common search space in a certain subframe, the mobile station apparatus 200 transmits HARQ control information using the first transmission format.
However, in the case that the mobile station apparatus 200 detects a PDCCH in the user equipment specific search space and/or the common search space in a certain subframe, the mobile station apparatus 200 transmits the control information. HARQ using either the first broadcast format or the second broadcast format.
Additionally, in the case that the mobile station apparatus 200 detects a PDCCH in the user equipment specific search space 15 in certain subframe, the mobile station apparatus 200 transmits the HARQ control information using the first transmission format.
In other words, in the case where the mobile station apparatus 200 detects a plurality of PDCCHs in the user equipment specific search space and/or in the common search space in certain sub-frame, or in the case wherein the mobile station apparatus 200 detects a PDCCH in the user equipment specific search space, the mobile station apparatus 200 transmits the HARQ control information using the first transmission format.
However, in the case that the mobile station apparatus 200 25 detects a PDCCH in the common search space in certain subframe, the mobile station apparatus 200 transmits the HARQ control information using the second transmission format.
In this document, in the case that a PDCCH detected in the common search space in a certain subframe is used to designate (schedule) a PDSCH on the downlink specific component carrier 30, the mobile station apparatus 200 can transmit the control information. HARQ using the second broadcast format.
In this document, using the first transmission format, the mobile station apparatus 200 is capable of transmitting the uplink control information (which may be the HARQ control information) with a greater amount than the uplink control information. uplink capable of being transmitted using the second transmission format.
For example, using the first transmission format, the mobile station apparatus 200 transmits the HARQ control information for a plurality of PDCCHs respectively in the DCC1, the DCC2 and the DCC3 10 and/or a plurality of link transport blocks downward.
However, for example, using the second transmission format, the mobile station apparatus 200 transmits the HARQ control information to a PDCCH in the common search space of DCC2 and/or a downlink transport block. In other words, the amount of transmittable information bits per subframe using the first transmission format can be made larger than the amount of transmittable information bits per subframe using the second transmission format.
Additionally, the mobile station apparatus 200 is capable of applying a modulation scheme with a modulation level greater than a modulation scheme applied to uplink control information (which may be HARQ control information) transmitted using the second transmission format, for uplink control information transmitted using the first transmission format. For example, using the first transmission format, the mobile station apparatus 200 applies 8PSk (Phase 8 Shift Modulation) or QAM (Quadrature Amplitude Modulation) to the uplink control information.
In this document, for example, using the second transmission format, the mobile station apparatus 200 30 applies BPSk (Binary Phase Shift Modulation) or QPSK (Quadrature Phase Shift Modulation) for the control information of uplink.
In other words, it is possible to apply a modulation scheme with a higher modulation level than a modulation scheme applied to uplink control information transmitted using the second transmission format, to the uplink control information. 5 uplink control transmitted using the first transmission format.
In other words, it is possible to make the amount of information transmissible per symbol using the first transmission format greater than the amount of information transmissible per symbol using the second transmission format. In addition, the mobile station apparatus 200 is capable of configuring (generating) orthogonal resource of the transmitted PUCCH using the first transmission format (the PUCCH to which the uplink control information is mapped (which may be the transmission information). HARQ control) transmitted using the first transmission format) and the PUCCH orthogonal resource transmitted using the second transmission format (the PUCCH to which the uplink control information transmitted using the second transmission format is mapped) by different methods.
In this document, the base station apparatus 100 can designate the configuration methods (generation methods) of the PUCCH orthogonal resource transmitted using the first transmission format and the PUCCH orthogonal resource transmitted using the second transmission format. - are for the mobile station apparatus 200. In other words, it is possible to configure the PUCCH orthogonal resource transmitted using the first transmission format and the PUCCH orthogonal resource transmitted using the second transmission format by different methods.
FIGURE 6 conceptually shows an exemplary orthogonal resource configuration of a PUCCH used by mobile station apparatus 200 to transmit uplink control information.
In FIG. 30 RA 6, as an example configuration of the orthogonal feature, the horizontal direction represents a cyclic shift of sequence CAZAC (cyclic shifts of sequence CAZAC represented by the numbers from "1" to
"12"). For example, the mobile station apparatus 200 transmits the uplink control information using the orthogonal feature (the orthogonal feature with the number of cyclic shifts of sequence 5 CAZAC being "3" shown by the black rectangle) of the PUCCH.
In other words, the mobile station apparatus 200 applies the cyclic shift of CAZAC sequence in the frequency domain to the PUCCH to orthogonalize the resource, and is capable of transmitting the uplink control information using the orthogonalized resource. Similarly, FIGURE 7 conceptually shows an exemplary orthogonal resource configuration of a PUCCH used by mobile station apparatus 200 to transmit uplink control information.
In FIGURE 7, as an example configuration of the orthogonal feature, the vertical direction represents the index (indices of orthogonal sequences represented by the numbers "1" to "5") of the orthogonal sequence (orthogonal code). For example, the mobile station apparatus 200 transmits the uplink control information using the orthogonal feature (the orthogonal feature with the orthogonal sequence index being "2" shown by the diagonal lines) of the PUCCH.
In other words, the mobile station apparatus 200 applies the time-domain orthogonal sequence to the PUCCH to orthogonalize the resource, and is capable of transmitting the uplink control information using the orthogonalized resource.
Similarly, FIGURE 8 conceptually shows an example configuration of orthogonal features of a PUCCH used by the mobile station apparatus 200 to transmit uplink control information.
In FIGURE 8, as an example configuration of the orthogonal feature, the horizontal direction represents the cyclic shift of CAZAC sequence, and the vertical direction represents the orthogonal sequence index (which 30 shows cyclic shifts of CAZAC sequence represented by the numbers of "1 " to "12", and orthogonal sequence indices represented by the numbers "1" to "4").
For example, the mobile station apparatus 200 transmits the uplink control information using the orthogonal feature (the orthogonal feature with the number of cyclic shifts of sequence CAZAC being "3" and with the orthogonal sequence index being " 2" shown by diagonal lines) of the PUCCH.
In other words, the mobile station apparatus 200 applies the cyclic shift of the CAZAC sequence in the frequency domain and the orthogonal sequence in the time domain to the PUC-CH to orthogonalize the resource, and is able to transmit the information of uplink control using the orthogonalized feature. 10 In FIGURE 5, using the PUCCH orthogonal feature configured by the configuration method mentioned above, the mobile station apparatus 200 transmits the uplink control information (which may be the HARQ control information) to the apparatus. of base station 100, using the first broadcast format or the second broadcast format 15.
For example, using the PUCCH orthogonal feature configured by the orthogonal sequence as shown in FIGURE 7, the mobile station apparatus 200 is capable of transmitting the uplink control information using the first transmission format.
Additionally, for example, using the PUCCH orthogonal feature configured by the cyclic shift of the CAZAC sequence and the orthogonal sequence as shown in FIGURE 8, the mobile station apparatus 200 is capable of transmitting the uplink control information. using the second broadcast format. 25 In this document, in the mobile communication system, the number of resources capable of being orthogonalized is related to the number of mobile station devices 200 (the number of mobile station devices 200 capable of being multiplexed) so that the information can be transmitted in a certain synchronism.
For example, as shown in FIGURE 6, in the case where the cyclic shifts of CAZAC sequence in orthogonal resources are "12", it is possible to multiplex up to 12 mobile station sets 200. In a similar way, for example, as shown at FI-
GRAPH 7, in the case where the indices of orthogonal sequences in orthogonal resources are "5", it is possible to multiplex up to 5 mobile station sets
200. Similarly, for example, as shown in FIGURE 8, in the case where the cyclic shifts of CAZAC sequence in orthogonal features are "12", and the indices of orthogonal sequences are "4", it is possible to multiplex up to 48 (12x4) mobile station apparatus 200. Base station apparatus 100 considers downlink resource status and uplink status resource the number of mobile station apparatus 200 that perform communications using a plurality of component carriers, the number of mobile station apparatus 200 that perform communications using a component carrier, etc., and thereby are able to designate the orthogonal resource configuration methods of the first and/or second transmission format transmission format for the mobile station apparatus 200 to transmit the uplink control information. In this document, as described above, the base station apparatus 100 is also capable of transmitting information (which may be information with respect to the orthogonal resource) to indicate the orthogonal resource, as the first parameter to designate the first region to enable the mobile station apparatus 200 to use PUCCH, and the second parameter to designate the second region to enable the mobile station apparatus 200 to use PUCCH. Additionally, the base station apparatus 100 is also capable of transmitting information (which may be information regarding the orthogonal resource) to indicate the orthogonal resource, as the first parameter to designate the first region to enable the apparatus. of mobile station 200 to use the first broadcast format, and the second parameter to designate the second region to enable mobile station apparatus 200 to use the second broadcast format. For example, the base station apparatus 100 transmits the cyclic shift amount (a cyclic shift amount) of sequence CAZAC and the orthogonal sequence index to the mobile station apparatus 200 as the first parameter and the second parameter. .
The base station apparatus 100 therefore transmits the cyclic shift amount (the cyclic shift amount) of sequence CA-ZAC and the orthogonal sequence index to the mobile station apparatus 5200 as the first parameter and the second parameter, and is thereby able to designate the resource for the mobile station apparatus 200 to transmit the uplink control information more flexibly.
Additionally, for example, base station apparatus 100 is able to designate regions until the amount of cyclic shifts of CAZAC sequence is "3" as the first region to enable the use of PUCCH.
Furthermore, for example, the base station apparatus 100 is able to designate regions until the orthogonal sequence index is "2" as the first region to enable the use of PUCCH.
Still further, for example, the base station apparatus 100 is capable of designating regions up to the amount of cyclic shifts of CAZAC sequence to be "3" and the orthogonal sequence index to be "2" as the first region to enable the use of PUCCH.
Furthermore, as the first transmission format, the mobile station apparatus 200 is capable of using a transmission format to enable HARQ and CQI control information to be transmitted together (simultaneously). In other words, the mobile station apparatus 200 is capable of transmitting HARQ and CQI control information simultaneously using the first transmission format.
For example, the mobile station apparatus 200 simultaneously transmits the HARQ i control information for the PDCCHs respectively in the DCC1, in the DCC2 and in the DCC3 and/or in the downlink transport blocks transmitted in the PDS-CHs, and the CQI.
The mobile station apparatus 200 therefore uses the transmission format to enable the HARQ and CQI control information to be transmitted simultaneously, as the first transmission format, and is capable of transmitting the uplink control information. (the HARQ control information and the CQI), using the PUCCH assigned by the base station apparatus 100 more efficiently.
Additionally, as the first transmission format, the mobile station apparatus 200 is capable of using a transmission format to enable the HARQ control information and the scheduling request to be transmitted together (simultaneously). In other words, the mobile station apparatus 200 is capable of simultaneously transmitting the HARQ control information and the scheduling request using the first transmission format.
For example, the mobile station apparatus 200 simultaneously transmits the HARQ control information for the 10 PDCCHs respectively in the DCC1, in the DCC2 and in the DCC3 and/or in the downlink transport blocks transmitted in the PDSCHs, and the scheduling request .
The mobile station apparatus 200 therefore uses the broadcast format to enable the HARQ control information and the scheduling request to be transmitted simultaneously, as the first broadcast format, and is capable of transmitting the HARQ control information. uplink (the HARQ control information and the scheduling request), using the PUCCH assigned by the base station apparatus 100 more efficiently. As described above, in Modality 1, the base station apparatus 100 designates the first region and the second region to enable the mobile station apparatus 200 to use the PUCCH, and the mobile station apparatus 200 transmits the control information. HARQ, using the PUCCH resource in the first region or the PUCCH resource in the second region which corresponds to the search space in which the PDCCH is detected.
In the case that the mobile station apparatus 200 detects a plurality of PDCCHs in the user equipment specific search space and/or in the common search space, the mobile station apparatus 200 transmits the HARQ control information using the resource. PUCCH in the first region.
However, in the case where the mobile station apparatus 200 detects a PDCCH in the user equipment specific search space and/or in the common search space, the mobile station apparatus 200 transmits the information.
HARQ control using the PUCCH feature in the first region or the PUCCH feature in the second region.
The base station apparatus 100 and the mobile station apparatus 200 therefore transmit and receive the HARQ control information, and are capable of performing transmission and reception of the HARQ control information using uplink resources efficiently.
For example, mobile station apparatus 200, which communicates with base station apparatus 100 using a plurality of component carriers, transmits HARQ control information for a plurality of PDCCHs and/or a plurality of blocks of downlink transport, using the PUCCH resource in the first region designated from the base station apparatus 100, and is thereby able to perform transmission of the HARQ control information using uplink resources efficiently. Additionally, in the case that the mobile station apparatus 200 detects a PDCCH in the user equipment specific search space, the mobile station apparatus 200 transmits the HARQ control information using the PUCCH resource in the first region.
However, in the case where the mobile station apparatus 200 detects a PDCCH in the common search space 20, the mobile station apparatus 200 transmits the HARQ control information using the PUCCH resource in the second region.
The base station apparatus 100 and the mobile station apparatus 200 therefore transmit and receive the HARQ control information, and are capable of performing transmission and reception of the HARQ control information at least in the case where the PDCCH is allocated in space. common research.
For example, under circumstances where an incompatibility in the amount of component carriers used in communications between the base station apparatus 100 and the mobile station apparatus 200 30 occurs (e.g. circumstances where the base station apparatus 100 considers that communications are performed using five DCCs, and the mobile station apparatus 200 considers that communications are performed using three DCCs), the base station apparatus 100 allocates the PDCCH in the common search space, thus it is possible to perform transmission and reception of information from control HARQ, and it is possible to continue communications between the base station apparatus 100 and the mobile station apparatus 200. The base station apparatus 100 transmits, to the mobile station apparatus 200, the first parameter to designate the first region and the second parameter to designate the second region, thus it is able to designate each space that corresponds to status in the managed cell (link resource uplink and uplink resources, the number of mobile station apparatus 200 that perform communications using a plurality of component carriers, the amount of mobile station apparatus 200 that perform communications using a component carrier, etc.), and is capable of perform more flexible transmission control of HARQ control information. Additionally, mobile station apparatus 200, which communicates with base station apparatus 100 using a plurality of component carriers, transmits HARQ control information for a plurality of PDCCHs and/or a plurality of transport blocks. downlink, using the first transmission format, and is thereby able to perform transmission control of HARQ control information using uplink resources more efficiently.
In addition, the mobile station apparatus 200 transmits the HARQ control information using the first broadcast format and the second broadcast format, and the base station apparatus 100 thereby is capable of performing more broadcast control. flexible HARQ control information.
In other words, the base station apparatus 100 is capable of performing transmission control of the HARQ control information considering the amount of information of the HARQ control information that the mobile station apparatus 200 transmits, the amount of station apparatus. mobile 200 which transmit HARQ control information in certain sync, etc.
Modality 2
Embodiment 2 of the invention will be described below.
In Mode 2, base station apparatus 100 transmits a first parameter to designate a first region in which mobile station apparatus 200 is capable of using the PUCCH for mobile station apparatus 200, and further transmits a plurality of parameters to designate a plurality of regions different from the first region in which the mobile station apparatus 200 is capable of using the PUCCH for the mobile station apparatus 200, and which corresponds to the search space in which the apparatus of mobile station 200 detects the PDCCH, the mobile station apparatus 200 transmits the HARQ control information to the base station apparatus 100 using the first region or any region of the plurality of regions.
Additionally, base station apparatus 100 transmits a first parameter to designate a first region in which mobile station apparatus 200 is capable of using the PUCCH to mobile station apparatus 200, and further transmits a second parameter to designate any region. of a plurality of regions different from the first region in which the mobile station apparatus 200 is capable of using the PUCCH to the mobile station apparatus 200, and the mobile station apparatus 200 transmits the HARQ control information to the mobile station apparatus. base station 100 using the first region in case of detecting a plurality of PDCCHs in the user equipment specific search space and/or the common search space, while transmitting the HARQ control information to the base station apparatus 100 using the first region or any region of the plurality of regions in the case of detecting a PDCCH in the user equipment specific search space 25 and/or in the space common research.
In addition, base station apparatus 100 transmits a first parameter to designate a first region in which mobile station apparatus 200 is capable of using PUCCH for mobile station apparatus 200, and further transmits a second parameter to to designate a plurality of regions different from the first region in which the mobile station apparatus 200 is capable of using the PUCCH for the station apparatus.
the mobile station 200, and the mobile station apparatus 200 transmits the HARQ control information to the base station apparatus 100 using the first region in the case of detecting a PDCCH in the user equipment specific search space, while transmitting the control information. 5 HARQ to the base station apparatus 100 using any region of the plurality of regions in the case of detecting a PDCCH in the common search space.
Still further, base station apparatus 100 transmits a first parameter to designate a first region in which mobile station apparatus 200 is capable of using the PUCCH for mobile station apparatus 200, and further transmits a second parameter to to designate a plurality of regions different from the first region in which the mobile station apparatus 200 is capable of using the PUCCH to the mobile station apparatus 200, and the mobile station apparatus 200 transmits the HARQ control information to the apparatus of base station 100 using the first region in case of detecting a plurality of PDCCHs in the user equipment specific search space and/or in the common search space or detecting a PDCCH in the user equipment specific search space , while transmitting the HARQ control information 20 to the base station apparatus 100 using any region of the plurality of regions in the case of detecting a PDCCH in the common search space.
In addition, base station apparatus 100 transmits a first parameter to designate a first region in which mobile station apparatus 200 is capable of using a first transmission format for mobile station apparatus 200, and additionally transmits a second parameter to designate a plurality of regions different from the first region in which the mobile station apparatus 200 is capable of using a second transmission format to the mobile station apparatus 200, and which corresponds to the search space in which the mobile station apparatus 30 200 detects the PDCCH, the mobile station apparatus 200 transmits the HARQ control information to the base station apparatus 100 using the first broadcast format or the second broadcast format.
Additionally, base station apparatus 100 transmits a first parameter to designate a first region in which mobile station apparatus 200 is capable of using a first transmission format for mobile station apparatus 200, and additionally transmits a second 5 parameter for designating a plurality of regions different from the first region in which the mobile station apparatus 200 is capable of using a second transmission format for the mobile station apparatus 200, and the mobile station apparatus 200 transmits the information of HARQ control to the base station apparatus 100 using the first transmission format in the case of detecting a plurality of PDCCHs in the user equipment specific search space and/or in the common search space, while transmitting the HARQ control information to the base station apparatus 100 using the first transmission format or the second transmission format in case it detects a PDCCH in the d space. and specific search of user equipment and/or common search space.
In addition, base station apparatus 100 transmits a first parameter to designate a first region in which mobile station apparatus 200 is capable of using a first transmission format for mobile station apparatus 200, and additionally transmits a second parameter to designate a plurality of regions different from the first region in which the mobile station apparatus 200 is capable of using a second transmission format for the mobile station apparatus 200, and the mobile station apparatus 200 transmits the HARQ control information to the base station apparatus 100 using the first transmission format in case of detecting a PDCCH in the user equipment specific search space, while transmitting the HARQ control information to the station apparatus base 100 using the second transmission format in case of detecting a PDCCH in the common search space. Still further, base station apparatus 100 transmits a first parameter to designate a first region in which mobile station apparatus 200 is capable of using a first transmission format for
r the mobile station apparatus 200, and further transmits a second parameter to designate a plurality of regions different from the first region in which the mobile station apparatus 200 is capable of using a second transmission format for the mobile station apparatus 200 , and the mobile station apparatus 200 transmits the HARQ control information to the base station apparatus 100 using the first transmission format in case of detecting a plurality of PDCCHs in the user equipment specific search space and / or in the common search space or detecting a PDCCH in the user equipment specific search space, while transmitting the HARQ control information to the base station apparatus 100 using the second transmission format in case of detecting a PDCCH in the space of common search.
In this document, the mobile station apparatus 200 detecting a PDCCH means that the mobile station apparatus 200 detects the PDCCH 15 for the mobile station apparatus 200 itself. Additionally, the HARQ control information transmitted from the mobile station apparatus 200 includes in- ACK/NACK indicative formation for the PDCCH and/or the downlink transport block transmitted from the base station apparatus 100 and/or DTX indicative information.
The information indicative of DTX is information indicating that the mobile station apparatus 200 was not able to detect the PDCCH transmitted from the base station apparatus 100 (or it may be information indicating whether the mobile station apparatus 200 was able to detect the PDCCH). FIGURE 9 is a diagram showing an example of a mobile communication system for which Modality 2 is applicable.
Modality 2 is applicable for both a symmetric carrier aggregation mobile communication system and an asymmetric carrier aggregation mobile communication system.
Additionally, in the description below, only an increased part of component carriers is described, but as usual, it is possible to apply the Modality to all component carriers.
As an example to explain Modality 2, FIGURE 9 shows three downlink component carriers (DCC1, DCC2 and DCC3). Additionally, FIGURE 9 shows three uplink component carriers (UCC1, UCC2 and UCC3). In FIGURE 9, as described in Modality 1, base station apparatus 100 and mobile station apparatus 200 perform uplink/downlink communications using PDCCH, PDSCH, PUSCH, PUCCH, etc.
In FIGURE 9, the dotted-line regions of the PUCCH (region of the PUCCH feature shown by diagonal lines from top left to bottom right) in UCC1, the PUCCH (region of the PUCCH feature shown by horizontal lines) in the UCC2, and the PUCCH (region of the PUCCH resource shown by vertical lines) in the UCC3 conceptually show PUCCHs in the UCC1, the UCC2 and the UCC3, respectively.
In this document, to make the description easy to understand, the horizontal direction represents frequency resources (or may represent bandwidth), and 15 orthogonal resources, as described above, are not described.
In this document, to make the description easy to understand, FIGURE 9 shows that the regions of the PUCCH resource are mapped respectively to component uplink carriers, but the regions of the PUCCH resource can be mapped to a component carrier. uplink te.
For example, each of the PUCCH resource regions may be mapped to a set of uplink component carriers by base station apparatus 100 as an uplink component carrier in which mobile station apparatus 200 transmits the information. of HARQ control. As described in Modality 1, base station apparatus 100 transmits the first parameter to designate the first region (region B shown by RB3 to RB5) to enable mobile station apparatus 200 to use PUCCH.
Similarly, base station apparatus 100 transmits the second parameter to designate the second region (D-1 region 30 shown by RB6 and RB7) to enable mobile station apparatus 200 to use the PUCCH.
Similarly, base station apparatus 100 transmits a third parameter to designate a third region (D-region
2 shown by RB8 and RB9) to enable the mobile station apparatus 200 to use the PUCCH.
Similarly, base station apparatus 100 transmits a fourth parameter to designate a fourth region (region D-3 shown by RB10 and RB11) to enable mobile station apparatus 200 to use the PUCCH.
In this document, in FIGURE 9, as an example, base station apparatus 100 assigns regions up to the fourth region to mobile station apparatus 200, but the amount of regions designated by base station apparatus 100 varies corresponding to the amount of carriers 10 downlink components used by base station apparatus 100 and mobile station apparatus 200 in communications.
Additionally, as described in Modality 1, base station apparatus 100 is capable of configuring an uplink component carrier for mobile station apparatus 200 to transmit HARQ control information.
In FIGURE 9, the base station apparatus 100 determines the UCC1 as an uplink component carrier for the mobile station apparatus 200 to transmit the HARQ control information.
Further, as described in Embodiment 1, base station apparatus 100 assigns the PUCCH resource to mobile station apparatus 200 to transmit HARQ control information to mobile station apparatus 200. mobile 200 transmits the HARQ control information to the base station apparatus 100 using the PUCCH resource designated by the base station apparatus 100. In this document, the mobile station apparatus 200 transmits the HARQ control information to the base station apparatus 100, using the PUCCH resource in the first region or the PUCCH resource in any region of a plurality of regions corresponding to the search space in which the mobile station apparatus 200 detects the PDCCH in certain subframe.
In other words, the base station apparatus 100 allocates the PDCCH into the search space (search space that exists within the PDCCH resource region), and using the first region or any region of the plurality of regions corresponding to the search space in Once the PDCCH is detected, the mobile station apparatus 200 transmits the HARQ control information to the base station apparatus 100. Additionally, using region A (region A shown by RB1 and RB2), for example, 5 the mobile station apparatus 200 transmits the CSI and the CQI to the base station apparatus 100. Additionally, in the case where the mobile station apparatus 200 detects a plurality of PDCCHs in the user equipment specific search space and/or in the common search space in a certain subframe, the mobile station apparatus 200 transmits the HARQ control information using the first region.
In other words, the base station apparatus 100 allocates a plurality of PDCCHs in the user equipment specific search space and/or the common search space, and in the case where the mobile station apparatus 200 detects a plurality of PDCCHs in the user equipment-specific search space and/or in the common search space, the mobile station apparatus 200 transmits the HARQ control information using the first region.
For example, in FIGURE 9, in the case where the mobile station apparatus 200 detects a plurality of PDCCHs in the user equipment specific search space 20 and/or in the common search space of each of DCC1, DCC2 and DCC3, mobile station apparatus 200 transmits HARQ control information using the first region.
Additionally, for example, in the case where the mobile station apparatus 200 detects a plurality of PDCCHs in the user equipment specific search space and/or in the common search space of the DCC2, the mobile station apparatus 200 transmits HARQ the control information using the first region.
Additionally, in the case that the mobile station apparatus 200 detects a PDCCH in the user equipment specific search space 30 and/or the common search space in certain subframe, the mobile station apparatus 200 transmits the control information. HARQ using the first region or any region (the second region, the third region or the fourth region) of a plurality of regions.
In other words, the base station apparatus 100 allocates a PDCCH in the user equipment specific search space and/or the common search space, and in the case that the mobile station apparatus 200 detects a PDCCH in the space. equipment specific search equipment and/or in the common search space, the mobile station apparatus 200 transmits the HARQ control information using the first region or any region of the plurality of regions.
In this document, in the case where the mobile station apparatus 10 200 detects a PDCCH in the user equipment specific search space, the mobile station apparatus 200 transmits the HARQ control information using the first region.
In other words, the base station apparatus 100 allocates a PDCCH in the user equipment specific search space, and in the case where the mobile station apparatus 15 200 detects a PDCCH in the user equipment specific search space, the apparatus of mobile station 200 transmits the HARQ control information using the first region.
However, in the case where the mobile station apparatus 200 detects a PDCCH in the common search space, the mobile station apparatus 200 transmits the HARQ control information using any region (the second region, the third region or the fourth region) of the plurality of regions.
In other words, the base station apparatus 100 allocates a PDCCH in the common search space, and in the case that the mobile station apparatus 200 detects a PDCCH in the common search space, the mobile station apparatus 200 transmits the information. HARQ control using any region (the second region, the third region, or the fourth region) of the plurality of regions.
For example, in FIGURE 9, in the case where the mobile station apparatus 200 detects a PDCCH in the user equipment specific search space 30 of the DCC1, the mobile station apparatus 200 transmits the HARQ control information using the first region.
Additionally, for example, in the case where the mobile station apparatus 200 de-
detects a PDCCH in the user equipment specific search space of the DCC2, the mobile station apparatus 200 transmits the HARQ control information using the first region.
Further, for example, in the case where the mobile station apparatus 200 detects a PDCCH in the user equipment specific search space of the DCC3, the mobile station apparatus 200 transmits the HARQ control information using the first region .
Additionally, in FIGURE 9, in the case where the mobile station apparatus 200 detects a PDCCH in the common search space of the DCC1, the mobile station apparatus 200 transmits the HARQ control information using the second region (any region of the plurality of regions). Further, for example, in the case where the mobile station apparatus 200 detects a PDCCH in the common search space of the DCC2, the mobile station apparatus 200 transmits the HARQ control information using the third region (any region of the plurality of regions). Still further, for example, in the case where the mobile station apparatus 200 detects a PDCCH in the common search space of the DCC3, the mobile station apparatus 200 transmits the HARQ control information using the fourth region (any region of the plurality of regions). In this document, as described in Modality 1, the base station apparatus is capable of associating the component downlink carriers with the component uplink carriers.
FIGURE 9 shows that base station apparatus 100 associates DCC1 with UCC1, DCC2 with UCC2, and DCC3 with UCC3. In other words, the mobile station apparatus 200 transmits the HARQ control information to the base station apparatus 100 using the PUCCH resource region on the uplink component carrier associated with the downlink component carrier.
In this document, in the case where the mobile station apparatus 30 200 transmits the HARQ control information on an uplink component carrier determined by the base station apparatus 100 as an uplink component carrier for display.
When the mobile station 200 transmits the HARQ control information, the regions of the PUCCH resource (the second region, the third region and the fourth region) respectively associated with the downlink component carriers are allocated in the component carrier uplink determined.
In other words, the base station apparatus 100 transmits a plurality of parameters to designate a plurality of regions (the second region, the third region and the fourth region) to enable the mobile station apparatus 200 to use the PUCCH on the component carrier of uplink determined in the mobile station apparatus 200. in the case that the mobile station apparatus 200 detects a PDCCH in the common search space, the mobile station apparatus 200 transmits the HARQ control information using any region of the plurality of regions on the uplink component carrier determined by base station apparatus 100. In this document, the plurality of PUCCH resource regions designated by base station apparatus 100 are associated with respective downlink component carriers.
For example, the base station apparatus 100 includes the specific offset (associated with the downlink component carrier) for the downlink component carrier in a plurality of parameters to transmit to the mobile station apparatus 200, and is capable of assigning the plurality of PUCCH resource regions to the mobile station apparatus 200. In other words, in FIGURE 9, the mobile station apparatus 200 transmits the HARQ control information for the PDCCH transmitted in the DCC1 and/or in the downlink transport block, using the PUCCH resource in the PUCCH resource region (second region) associated with DCC1. Additionally, the mobile station apparatus 200 transmits the HARQ control information to the PDCCH transmitted in the DCC2 and/or the downlink transport block, using the PUCCH resource in the PUCCH resource region (third region ) associated with DCC2. Furthermore, the mobile station apparatus 200 transmits the HARQ control information for the PDCCH transmitted in the DCC3 and/or the downlink transport block, using the PUCCH resource in the PUCCH resource region (fourth region) associated with the DCC3. In other words, in the case that the mobile station apparatus 200 detects the PDCCH in the common search space of the DCC1, the mobile station apparatus 200 transmits the HARQ control information in HARQ, using the PUCCH resource in the region of the PUCCH resource (second region, any region of the plurality of regions) associated with the DCC1, which is mapped onto the uplink component carrier determined by the base station apparatus 100. Additionally, in the case where the station apparatus mobile 200 detects the PDCCH in the common search space of the DCC2, the mobile station apparatus 200 transmits the HARQ control information using the PUCCH resource in the PUCCH resource region (third region, any region of the plurality of regions) associated with the DCC2, which is mapped onto the uplink component carrier determined by the base station apparatus 100. Furthermore, in the case where the mobile station apparatus 200 detects the PDCCH in the common search space of the DCC3, the ap. Mobile station relay 200 transmits the HARQ control information using the PUCCH resource in the region of the PUCCH resource 20 (fourth region, any region of the plurality of regions) associated with the DCC3, which is mapped to the determined uplink component carrier by the base station apparatus 100. As described above, the mobile station apparatus 200 transmits the HARQ control information for a plurality of PDCCHs detected in the user equipment specific search space and/or in the search space common and/or downlink transport blocks transmitted on a plurality of PDSCHs (referred to as a plurality of PDCCHs) to the base station apparatus 100, using the first region. In addition, the mobile station apparatus 200 transmits the HARQ control information to a PDCCH detected in the user equipment specific search space and/or the downlink transport block transmitted in a PDSCH (designated by a PDC-CH) to the base station apparatus 100, using the first region.
In other words, in the case where the mobile station apparatus 200 detects a plurality of PDCCHs in the user equipment specific search space and/or in the common search space in a certain subframe, or in the case where the mobile station apparatus 200 detects a PDCCH in the user equipment specific search space, the mobile station apparatus 200 transmits the HARQ control information using the first region. In addition, the mobile station apparatus 200 transmits the HARQ control information to a PDCCH detected in the common search space and/or in the downlink transport block transmitted in a PDSCH (referred to as a PDCCH) to base station apparatus 100, using any region of the plurality of regions. In this document, in the case where a PDCCH detected in the common search space in certain subframe is used to designate a PDSCH on the specific downlink component carrier, the mobile station apparatus 200 can transmit the HARQ control information to the base station apparatus 100, using any region (the second region, the third region, or the fourth region) of the plurality of regions.
The base station apparatus 100 is capable of configuring the downlink specific component carrier in the mobile station apparatus 200. In other words, in the case where the base station apparatus 100 designates (schedule) a PDSCH on the specific component carrier of downlink is determined in the mobile station apparatus 200 using a PDCCH in the common search space, and the mobile station apparatus 200 detects, in the common search space, the PDCCH that is used to designate the PDSCH on the specific component carrier of downlink determined by base station apparatus 100, mobile station apparatus 200 may transmit HARQ control information using any region of the plurality of regions.
For example, the base station apparatus 100 is capable of confi-
secure the specific downlink component carrier in the mobile station apparatus 200 specifically for the cell, using the broadcast information (the broadcast channel). Additionally, for example, the base station apparatus 100 is capable of configuring the downlink specific component carrier in the mobile station apparatus 200 specifically for the mobile station apparatus, using RCC signaling.
In other words, in the case where the mobile station apparatus 200 detects a PDCCH, it is used to designate a PDSCH except for the specific downlink component carrier determined by the base station apparatus 100, in the space of In common search, the mobile station apparatus 200 transmits the HARQ control information using the first region.
However, in the case where the mobile station apparatus 200 detects a PDCCH, which is used to designate a PDSCH on the downlink specific component carrier determined by the base station apparatus 100, in the common search space, the mobile station apparatus 200 transmits HARQ control information using any region of the plurality of regions.
Additionally, the base station apparatus 100 and the mobile station apparatus 200 are capable of configuring, as the specific downlink component carrier, a downlink component carrier associated with a determined uplink component carrier, by the base station apparatus 100 as an uplink component carrier on which the HARQ control information is transmitted. In other words, in the case where the mobile station apparatus 200 detects a PDCCH, it is used to designate a PDSCH except for the downlink component carrier associated with the uplink component carrier determined by the base station 100 as an uplink component carrier 30 wherein the HARQ control information is transmitted, in the common search space, the mobile station apparatus 200 transmits the HARQ control information using the first region.
However, in the case where the mobile station apparatus 200 detects a PDCCH, it is used to designate a PDSCH on the downlink component carrier associated with the uplink component carrier determined by the base station apparatus 100 as a component carrier of uplink wherein the HARQ control information is transmitted, in the common search space, the mobile station apparatus 200 transmits the HARQ control information using any region of the plurality of regions.
For example, in FIGURE 9, in the case where DCC1 is associated with UCC1 by broadcast information (the broadcast channel) or by RCC signaling from base station apparatus 100, and the PDCCH is detected in space Common polling function of DCC1 and/or DCC2 and/or DCC3 is used to designate (schedule) PDSCH except for DCC1, mobile station apparatus 200 can transmit HARQ control information using the first region.
Meanwhile, for example, in FIGURE 9, in the case where DCC1 is associated with UCC1 by broadcast information (the broadcast channel) or by RCC signaling from the base station apparatus 100, and the PDCCH is detected in the space of common search of the DCC1 and/or the DCC2 and/or the DCC3 20 is used to designate (schedule) the PDSCH in the DCC1, the mobile station apparatus 200 can transmit the HARQ control information using any region of the plurality of regions.
In this document, in the case that the PDCCH detected in the common search space of the DCC1 is used to designate the PDSCH in the DCC1, the mobile station apparatus 200 can transmit the HARQ control information using the second region.
Additionally, in the case that the PDCCH detected in the common search space of DCC2 is used to designate the PDSCH in DCC1, the mobile station apparatus 200 can transmit the HARQ control information using the third region.
Furthermore, in the case that the PDCCH detected in the common search space of the DCC3 is used to designate the PDSCH in the DCC1, the mobile station apparatus 200 can transmit the HARQ control information using the fourth region.
In this document, as described above in FIGURE 9, the base station apparatus 100 determines the UCC1 as the uplink component carrier for the mobile station apparatus 200 to transmit the HARQ control information.
Additionally, in FIGURE 9, in the case where the mobile station apparatus 200 transmits the HARQ control information using the first region, the mobile station apparatus 200 transmits the HARQ control information to the base station apparatus 100, using the first 10 broadcast format.
Furthermore, in the case where the mobile station apparatus 200 transmits the HARQ control information using any region of the plurality of regions, the mobile station apparatus 200 transmits the HARQ control information to the base station apparatus 100 using the second broadcast format. In other words, in the case where the mobile station apparatus 200 detects a plurality of PDCCHs in the user equipment specific search space and/or in the common search space in a certain subframe, the mobile station apparatus 200 transmits HARQ control information using the first transmission format.
However, in the case where the mobile station apparatus 200 detects a PDCCH in the user equipment specific search space and/or the common search space in a certain subframe, the mobile station apparatus 200 transmits the control information. HARQ using either the first broadcast format or the second broadcast format. Additionally, in case that the mobile station apparatus 200 detects a PDCCH in the user equipment specific search space in certain subframe, the mobile station apparatus 200 transmits the HARQ control information using the first transmission format.
In other words, in the case where the mobile station apparatus 200 detects a plurality of PDCCHs in the user equipment specific search space and/or in the common search space in certain subframe, or in the case wherein the mobile station apparatus 200 detects a
PDCCH in the user equipment specific search space, the mobile station apparatus 200 transmits the HARQ control information using the first transmission format.
However, in the case where the mobile station apparatus 200 5 detects a PDCCH in the common search space in certain subframe, the mobile station apparatus 200 transmits the HARQ control information using the second transmission format.
In this document, in the case that a PDCCH detected in the common search space in a certain subframe is used to designate a PDSCH on the specific downlink component carrier 10, the mobile station apparatus 200 can transmit the HARQ control information using the second transmission format.
In this document, the first transmission format and the second transmission format are the same as described in Modality 1, and descriptions thereof are omitted. As described above, in Modality 2, base station apparatus 100 designates the first region and a plurality of regions to enable mobile station apparatus 200 to use PUCCH, and mobile station apparatus 200 transmits the information. HARQ control, using the PUCCH resource in the first space or the PUCCH resource in any region 20 of the plurality of regions corresponding to the search space in which the PDCCH is detected.
In the case where the mobile station apparatus 200 detects a plurality of PDCCHs in the user equipment specific search space and/or the common search space, the mobile station apparatus 200 transmits the HARQ control information using the first region.
However, in the case that the mobile station apparatus 200 detects a PDCCH in the user equipment specific search space and/or the common search space, the mobile station apparatus 200 transmits the HARQ control information using the first region or any region 30 of the plurality of regions.
Base station apparatus 100 and mobile station apparatus 200 therefore transmit and receive HARQ control information, and are capable of performing transmission and reception of HARQ control information using uplink resources efficiently.
For example, mobile station apparatus 200, which communicates with base station apparatus 100 using a plurality of component carriers, transmits HARQ control information for a plurality of PDCCHs and/or a plurality of blocks of downlink transport, using the PUCCH resource in the first designated region of the base station apparatus 100, and is thereby able to perform transmission of the HARQ control information using uplink resources efficiently. Additionally, in the case that the mobile station apparatus 200 detects a PDCCH in the user equipment specific search space, the mobile station apparatus 200 transmits the HARQ control information using the PUCCH resource in the first region.
However, in the case where the mobile station apparatus 200 detects a PDCCH in the common search space 15, the mobile station apparatus 200 transmits the HARQ control information using the PUCCH feature in any region of the plurality of regions.
The base station apparatus 100 and the mobile station apparatus 200 therefore transmit and receive the HARQ control information, and are capable of performing transmission and reception of the HARQ control information at least in the case where the PDCCH is allocated in space. common research.
For example, under circumstances where a mismatch occurs in the amount of component carriers used in communications 25 between base station apparatus 100 and mobile station apparatus 200 (e.g. circumstances where base station apparatus 100 considers that communications are performed using five DCCs, and the mobile station apparatus 200 considers that communications are performed using three DCCs), the base station apparatus 100 allocates the PDCCH in the common search space, thus it is possible to perform transmission and reception of the information. of HARQ control, and it is possible to continue communications between the base station apparatus 100 and the mobile station apparatus 200.
The base station apparatus 100 transmits, to the mobile station apparatus 200, the first parameter to designate the first region and a plurality of parameters to designate a plurality of regions, is thereby able to designate each region corresponding to status in the managed cell (downlink resources and uplink resources, the number of mobile station apparatus 200 that perform communications using a plurality of component carriers, the number of mobile station apparatus 200 that perform communications using a component carrier , etc.), and is able to perform more flexible transmission control of HARQ control information.
Additionally, mobile station apparatus 200, which communicates with base station apparatus 100 using a plurality of component carriers, transmits HARQ control information for a plurality of PDCCHs and/or a plurality of transport blocks 15 of downlink, using the first transmission format, and is thus able to perform transmission control of the HARQ control information using the uplink resource more efficiently.
Furthermore, the mobile station apparatus 200 transmits the HARQ control information using the first broadcast format and the second broadcast format, and the base station apparatus 100 is thereby capable of performing more broadcast control. flexible HARQ control information.
In other words, the base station apparatus 100 is capable of performing transmission control of the HARQ control information considering the amount of information of the HARQ control information 25 that the mobile station apparatus 200 transmits, the amount of mobile station apparatus 200 which transmit the HARQ control information in certain sync, etc.
The Arrangements as described above are applicable to integrated circuits installed in the base station apparatus 100 and the mobile station apparatus 200. Additionally, in the Arrangements mentioned above, a program to update each function within the base station apparatus 100 and each function within the mobile station apparatus 200 may be stored on a computer readable storage medium, and the program stored on the storage medium may be read by a computer system and executed to perform control of the base station apparatus 100 and of the mobile station apparatus 200. Additionally, it is assumed that the "computer system" described in this document includes the OS and peripheral device hardware, and so on.
Additionally, "computer-readable storage medium" means transportable media such as a floppy disk, optical-magnetic disk, ROM, CD-ROM and so on, and storage devices such as a hard disk and so on embedded within the computer system.
In addition, the "computer-readable storage medium" may include media that dynamically hold the program for a short time, such as communication lines in the case where the program is transmitted over network communication channels such as communication lines. the Internet and telephone lines, and media that hold the program for a while, such as volatile memory within the computer system that is the server or client in this case.
Furthermore, the program mentioned above may be for updating a part of the functions as described previously, and additionally, it may be for updating the functions as described previously in combination with a program already stored in the computer system.
Furthermore, the present invention is capable of adopting the following aspects.
In other words, a mobile communication system of the invention is a mobile communication system in which a base station apparatus and a mobile station apparatus perform communications using a plurality of component carriers, where the base station apparatus transmits a first parameter to designate a first region in which the mobile station apparatus is capable of using an uplink control channel for the mobile station apparatus, and further transmits a second parameter to designate a second region other than the one. first region in which the mobile station apparatus is capable of using the uplink control channel for the mobile station apparatus, and which corresponds to a search space in which the mobile station apparatus detects a physical control channel Downlink, the mobile station apparatus transmits HARQ control information to the base station apparatus using the first region or the second region.
Additionally, in the mobile communication system in which a base station apparatus and a mobile station apparatus carry out communications using a plurality of component carriers, the base station apparatus transmits a first parameter to designate a first region in which the mobile station apparatus is capable of using an uplink control channel for the mobile station apparatus, and further transmits a second parameter to designate a second region different from the first region in which the mobile station apparatus is able to use the uplink control channel for the mobile station apparatus, and the mobile station apparatus transmits HARQ control information to the base station apparatus using the first region in the case of detecting a plurality of physical downlink control channels in a user equipment specific search space and/or a common search space while transmitting the info HARQ control statement to the base station apparatus using the first region or the second region in case of detecting a physical downlink control channel 20 in the user equipment specific search space and/or in the common search space .
Furthermore, in the mobile communication system in which a base station apparatus and a mobile station apparatus carry out communications using a plurality of component carriers, the base station apparatus transmits a first parameter to designate a first region in that the mobile station apparatus is capable of using an uplink control channel for the mobile station apparatus, and further transmits a second parameter to designate a second region different from the first region in which the mobile station apparatus is able to use the uplink control channel for the mobile station apparatus, and the mobile station apparatus transmits HARQ control information to the base station apparatus using the first region in case of detecting a channel. physical downlink control in a user equipment-specific research space, while transmitting the HARQ control information to the base station apparatus 100 using the second region in case of detecting a downlink physical control channel in a common search space.
Still further, in the mobile communication system in which a base station apparatus and a mobile station apparatus carry out communications using a plurality of component carriers, the base station apparatus transmits a first parameter to designate a first region in that the mobile station apparatus is capable of using an uplink control channel for the mobile station apparatus, and further transmits a second parameter to designate a second region different from the first region that the mobile station apparatus is capable of. of using the uplink control channel to the mobile station apparatus, and the mobile station apparatus transmits HARQ control information to the base station apparatus using the first region in the case of detecting a plurality of physical channels of downlink control in a user equipment specific search space and/or a common search space or detect a physical channel of 20 downlink control in the user equipment specific search space, while transmitting the HARQ control information to the base station apparatus using the second region in case of detecting a physical downlink control channel in the space. common research. Furthermore, in the mobile communication system in which a base station apparatus and a mobile station apparatus carry out communications using a plurality of component carriers, the base station apparatus transmits a first parameter to designate a first region in that the mobile station apparatus is capable of using an uplink control channel for the mobile station apparatus, and further transmits a second parameter to designate a second region different from the first region in which the station apparatus mobile is ca-
It is possible to use the uplink control channel for the mobile station apparatus, and the mobile station apparatus transmits HARQ control information to the base station apparatus using the first region in the case where a physical control channel. downlink detected 5 in a common search space is used to designate a downlink shared physical channel except for a specific component carrier, while transmitting the HARQ control information to the base station apparatus using the second region in the case in that a downlink physical control channel detected in the common search space is used to designate a downlink shared physical channel on the specific component carrier.
Additionally, the mobile station apparatus transmits the HARQ control information to the base station apparatus using a first transmission format in the first region, while transmitting the HARQ control information to the base station apparatus using a second transmission format in the second region, and the first transmission format and the second transmission format are different transmission formats.
Furthermore, in the mobile communication system in which a base station apparatus and a mobile station apparatus carry out communications using a plurality of component carriers, the base station apparatus transmits a first parameter to designate a first region in that the mobile station apparatus is capable of using an uplink control channel for the mobile station apparatus, and further transmits a plurality of parameters to designate a plurality of regions different from the first region in which the apparatus The mobile station apparatus is capable of using the uplink control channel for the mobile station apparatus, and which corresponds to a search space in which the mobile station apparatus detects a physical downlink control channel. , the mobile station apparatus transmits HARQ control information to the base station apparatus using the first region or any region of the plurality of regions.
Still further, in the mobile communication system in which a base station apparatus and a mobile station apparatus carry out communications using a plurality of component carriers, the base station apparatus transmits a first parameter to designate a first region in that the mobile station apparatus is capable of using an uplink control channel for the mobile station apparatus, and further transmits a plurality of parameters to designate a plurality of regions different from the first region that the mobile station apparatus is capable of. of using the uplink control channel 10 to the mobile station apparatus, and the mobile station apparatus transmits HARQ control information to the base station apparatus using the first region in the case of detecting a plurality of physical control channels. downlink in a user equipment-specific search space and/or a common search space, as long as 15 transmi set the HARQ control information to the base station apparatus using the first region or any region of the plurality of regions in the case of detecting a physical downlink control channel in the user equipment specific search space and/or in the common search space. Furthermore, in the mobile communication system in which a base station apparatus and a mobile station apparatus carry out communications using a plurality of component carriers, the base station apparatus transmits a first parameter to designate a first region in that the mobile station apparatus is capable of using an uplink control channel for the mobile station apparatus, and further transmits a plurality of parameters to designate a plurality of regions different from the first region in which the apparatus The mobile station apparatus is capable of using the uplink control channel for the mobile station apparatus, and the mobile station apparatus transmits HARQ control information to the base station apparatus using the first region in the case of detecting a physical downlink control channel in a specific user equipment search space,
while transmitting the HARQ control information to the base station apparatus 100 using any region of the plurality of regions in the case of detecting a physical downlink control channel in a common search space. Additionally, in the mobile communication system in which a base station apparatus and a mobile station apparatus carry out communications using a plurality of component carriers, the base station apparatus transmits a first parameter to designate a first region in which the mobile station apparatus is capable of using an uplink control channel for the mobile station apparatus, and further transmits a plurality of parameters to designate a plurality of regions different from the first region in which the mobile station apparatus. mobile station is capable of using the uplink control channel for the mobile station apparatus, and the mobile station apparatus transmits HARQ control information to the base station apparatus using the first region in the case of detecting a plurality of downlink physical control channels in a user equipment specific search space and/or a common search space or detect air a physical downlink control channel in the user equipment specific search space, while transmitting the HARQ control information to the base station apparatus using any region of the plurality of regions in the case of detecting a physical channel of downlink control in the common search space.
Furthermore, in the mobile communication system in which a base station apparatus and a mobile station apparatus carry out communications using a plurality of component carriers, the base station apparatus transmits a first parameter to designate a first region in that the mobile station apparatus is capable of using an uplink control channel for the mobile station apparatus, and further transmits a plurality of parameters to designate a plurality of regions different from the first region in which the apparatus The mobile station apparatus is capable of using the uplink control channel for the mobile station apparatus, and the mobile station apparatus transmits HARQ control information to the base station apparatus using the first region in the case where a physical downlink control channel detected in a common search space is used to designate a physical downlink shared channel except for a p. component-specific speaker, while transmitting the HARQ control information to the base station apparatus using any region of the plurality of regions in the case where a physical downlink control channel detected in the common search space is used. to designate 10 a downlink shared physical channel on the specific component carrier.
Still further, the mobile station apparatus transmits the HARQ control information to the base station apparatus using a first transmission format in the first region, while transmitting the HARQ control information to the base station apparatus using a second transmission format in any region of the plurality of regions, and the first transmission format and the second transmission format are different transmission formats.
Additionally, the HARQ control information is information indicative of ACK or NACK for a downlink transport block transmitted on a downlink shared physical channel.
Furthermore, the HARQ control information is information indicating that the mobile station apparatus has not been able to detect the physical downlink control channel. Additionally, a base station apparatus in a mobile communication system wherein the base station apparatus and a mobile station apparatus perform communications using a plurality of component carriers comprising: means for transmitting a first parameter to designate a first region in which the mobile station apparatus 30 is capable of using an uplink control channel for the mobile station apparatus, means for transmitting a second parameter to designate a second region different from the first region in which the mobile station apparatus is capable of using the uplink control channel for the mobile station apparatus, and means for receiving HARQ control information from the mobile station apparatus transmitted using the first region or the second region corresponding to a search space in that the mobile station apparatus detects a physical downlink control channel.
Furthermore, a base station apparatus in a mobile communication system wherein the base station apparatus and a mobile station apparatus perform communications using a plurality of component carriers comprising: means for transmitting a first parameter to designating a first region in which the mobile station apparatus is capable of using an uplink control channel for the mobile station apparatus, means for transmitting a plurality of parameters for designating a plurality of different regions of the first region 15 wherein the mobile station apparatus is capable of using the uplink control channel for the mobile station apparatus, and means for receiving HARQ control information from the mobile station apparatus transmitted using the first region or any region of the plurality of regions corresponding to a search space in which the mobile station apparatus 20 detects a physical downlink control channel.
Additionally, a mobile station apparatus in a mobile communication system wherein a base station apparatus and the mobile station apparatus perform communications using a plurality of component carriers comprising: means for receiving a first parameter to designate a first region in which the mobile station apparatus is capable of using an uplink control channel of the base station apparatus, means for receiving a second parameter for designating a second space different from the first region in which the apparatus of mobile station is capable of using the uplink control channel of the base station apparatus, and means for transmitting HARQ control information to the base station apparatus using the first region or the second region corresponding to a space. of research in which the
mobile station son detects a physical downlink control channel.
Furthermore, a mobile station apparatus in a mobile communication system wherein a base station apparatus and the mobile station apparatus perform communications using a plurality of component carriers comprising: means for receiving a first parameter for designating a first region in which the mobile station apparatus is capable of using an uplink control channel of the base station apparatus, means for receiving a plurality of parameters for designating a plurality of regions different from the first region in which the mobile station apparatus is capable of using the uplink control channel of the base station apparatus, and means for transmitting HARQ control information to the base station apparatus using the first region or any region of the plurality of regions that correspond to a search space in which the mobile station apparatus detects a physical downlink control channel.
Additionally, in a method of communication in a base station apparatus in a mobile communication system in which the base station apparatus and a mobile station apparatus carry out communications using a plurality of component carriers, the apparatus The base station apparatus transmits a first parameter to designate a first region in which the mobile station apparatus is capable of using an uplink control channel to the mobile station apparatus, further transmits a second parameter to designate a second relay. 25 region different from the first region in which the mobile station apparatus is able to use the uplink control channel for the mobile station apparatus, and receives HARQ control information from the mobile station apparatus using the first region or the second region corresponding to a search space in which the mobile station apparatus detects a physical downlink control channel.
Furthermore, in a method of communication in a base station apparatus in a mobile communication system in which the base station apparatus and a mobile station apparatus perform communications using a plurality of component carriers, the base station apparatus transmits a first parameter to designate a first region in which the mobile station apparatus is capable of using an uplink control channel for the mobile station apparatus, further transmits a plurality of parameters to designate a plurality of regions different from the first region wherein the mobile station apparatus is capable of using the uplink control channel for the mobile station apparatus, and receives HARQ control information from the mobile station apparatus using the first region or any region of the plurality of regions which correspond to a search space in which the mobile station apparatus detects a physical downlink control channel.
Additionally, in a method of communication in a mobile station apparatus in a mobile communication system in which a base station apparatus and the mobile station apparatus carry out communications using a plurality of component carriers, the station apparatus The mobile receives a first parameter to designate a first region in which the mobile station apparatus is capable of using an uplink control channel of the base station apparatus, additionally receives a second parameter to designate a second region different from the first region in that the mobile station apparatus is capable of using the uplink control channel of the base station apparatus, and transmits HARQ control information to the base station apparatus using the first region or the second region corresponding to a space. A search step in which the mobile station apparatus detects a physical downlink control channel.
Furthermore, in a method of communication in a mobile station apparatus in a mobile communication system in which a base station apparatus and the mobile station apparatus perform communications 30 using a plurality of component carriers, the mobile station apparatus receives a first parameter to designate a first region in which the mobile station apparatus is capable of using a

权利要求:
Claims (1)
[1]
uplink of the base station apparatus, further receives a plurality of parameters to designate a plurality of regions different from the first region in which the mobile station apparatus is capable of using the uplink control channel of the base station apparatus, and transmits HARQ control information to the base station apparatus using the first region or any region of the plurality of spaces that corresponds to a search space in which the mobile station apparatus detects a physical downlink control channel. As mentioned above, the Embodiments of the invention are specifically described with reference to the drawings, but specific configurations are not limited to the Embodiments, and designs and others in scope without departing from the object of the invention are included in the scope of the claims.
DESCRIPTION OF SYMBOLS 15 100 Base station apparatus 101 Data control unit 102 Transmit data modulation unit 103 Radio unit 104 Schedule unit 20 105 Channel estimation unit 106 Receive data demodulation unit 107 Extraction unit 108 Upper layer 109 Antenna 25 110 Radio Resource Control Unit 200 Mobile station apparatus 201 Data control unit 202 Transmit data modulation unit 203 Radio unit 30 204 Schedule unit 205 Channel estimation unit 206 Receive Data Demodulation Unit
207 Data Extraction Unit 208 Top Layer 209 Antenna 210 Radio Resource Control Unit 5

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法律状态:
2021-05-11| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|

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2021-05-18| B15K| Others concerning applications: alteration of classification|Free format text: AS CLASSIFICACOES ANTERIORES ERAM: H04W 28/04 , H04W 28/06 , H04W 72/04 , H04J 11/00 Ipc: H04L 1/18 (2006.01), H04J 11/00 (2006.01), H04W 88 |

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2021-05-18| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|

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2021-12-14| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|

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2022-02-22| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 25/03/2011, OBSERVADAS AS CONDICOES LEGAIS. PATENTE CONCEDIDA CONFORME ADI 5.529/DF, QUE DETERMINA A ALTERACAO DO PRAZO DE CONCESSAO. |

优先权:

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申请号 | 申请日 | 专利标题

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JP2010069514|2010-03-25|

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JP2010-069514|2010-03-25|

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PCT/JP2011/057428|WO2011118803A1|2010-03-25|2011-03-25|Communication method, mobile station device, base station device, and mobile communication system|

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