MOBILE STATION APPARATUS, BASE STATION APPARATUS, METHOD OF COMMUNICATION OF A MOBILE STATION APPARA

专利摘要:
mobile communication system, base station apparatus, mobile station apparatus and communication method. the present invention relates to a mobile communication system in which a plurality of component carriers are used, in which a transmission and a reception of a harq control information is effectively carried out. in a mobile communication system in which a base station apparatus (100) regulates a plurality of downlink component carriers to a mobile station apparatus (200), the base station apparatus (100) transmits a link transport block to the mobile apparatus (200) for one or a plurality of downlink component carriers, and the mobile station apparatus transmits, to the base station apparatus (100), a harq control information for the transport block. downlink on any of the physical uplink control channel resources corresponding to one or the plurality of downlink component carriers on which the downlink transport block has been transmitted.
公开号:BR112012012655B1
申请号:R112012012655-5
申请日:2010-11-25
公开日:2021-07-27
发明作者:Shohei Yamada；Tatsushi Aiba
申请人:Sharp Kabushiki Kaisha；
IPC主号:

专利说明:

Technical Field
[001] The present invention relates to a mobile communication system including a base station apparatus and a mobile station apparatus and a method of communication. Background Technique
[002] The 3GPP (3rd Generation Partnership Project) is a project that examines and prepares specifications for a mobile communication system based on a network in which W-CDMA (Code-Division Broadband Multiple Access) and GSM (Global System for Mobile Communications). In 3GPP, the W-CDMA system is standardized as the third generation cellular mobile communication system, and its services have been successively started. HSDPA (High Speed Downlink Packet Access) in which a communication speed is further increased is also standardized, and its services are started. In 3GPP, the evolution of third-generation radio access technology (hereafter referred to as "LTE (Long Term Evolution)" or "EUTRA (Evolved Universal Terrestrial Radio Access)") and a band frequency band are used, and thus a mobile communication system for performing high-speed transmission and data reception (referred to hereafter as "LTE-A (advanced long-term evolution)" or a " advanced EUTRA”) is being examined.
[003] As the communication system in LTE, an OFDMA (orthogonal frequency division multiple access) system in which subcarriers orthogonal to each other are used to perform a user multiplexing and an SC-FDMA (access) system carrier frequency division multiple) are being examined. Specifically, in a downlink, the OFDMA system which is a multi-carrier communication system, is proposed and, in an uplink, the SC-FDMA system, which is a single-carrier communication system, is proposed.
[004] On the other hand, as the communication system in LTE-A, in a downlink, the introduction of the OFDMA system is being examined, and, in an uplink, in addition to the SC-FDMA system, the introduction of the OFDMA system and a clustered SC-FDMA (clustered single-carrier frequency division multiple access, also referred to as DFTs-OFDM with spectrum division control) system are being examined. Here, in LTE and LTE-A, the SC-FDMA system proposed as an uplink communication system has the feature of being able to reduce a PAPR (peak to average power ratio: transmit power) when data are transmitted.
[005] While a frequency band used in a general mobile communication system is contiguous, in LTE-A, it is examined that a plurality of contiguous/non-contiguous frequency bands (hereafter referred to as an "element of carrier, a carrier component (CC)" or a "carrier element, a carrier component (CC)" is used in a composite manner and they are managed as a wideband frequency band (frequency band aggregation: also referred to as spectrum aggregation, carrier aggregation, frequency aggregation or the like) (non-patent document 1) Further, it is also proposed that so that a base station apparatus and a mobile station apparatus use more flexibly a wideband frequency band for carrying out communications, a frequency band used for downlink communication, and a frequency band used for uplink communication are made to have different frequency bandwidths (asymmetric frequency band aggregation asymmetric carrier aggregation) (non-patent document 2).
[006] Figure 7 is a diagram illustrating a mobile communication system in which a frequency band aggregation was performed in a conventional technology. That is, as shown in Figure 7, a frequency band used in downlink communication (also referred to here as DL) and a frequency band used in uplink communication (also referred to as DL from this point onwards) UL) are made to have the same bandwidth, which is also referred to as a symmetric frequency band aggregation (symmetric carrier aggregation). As shown in Figure 7, a base station apparatus and a mobile station apparatus use a plurality of carrier elements that are a contiguous and/or non-contiguous frequency band in a composite manner, and thus can carry out communications in a wideband frequency band composed of a plurality of carrier elements. Figure 7 shows, as an example, that a frequency band (hereafter referred to also as a DL system band, a right side system bandwidth) used in downlink communication having a width of The 100 MHz band is composed of five downlink carrier elements: (DCC1: downlink component carrier 1, DCC2, DCC3, DCC4 and DCC5), each having a bandwidth of 20 MHz. Figure 7 also shows, as an example, that a frequency band (also referred to from this point as an UL system band, a UL system bandwidth) used in uplink communication having a bandwidth of 100 MHz is composed of five uplink carrier elements: (UCC1: uplink component carrier 1, UCC2, UCC3, UCC4 and UCC5), each having a bandwidth of 20 MHz.
[007] In Figure 7, in each of the downlink carrier elements, the downlink channels, such as a physical downlink control channel (referred to hereafter as a PDCCH) and a shared link channel Physical descendants (referred to from this point on as a PDSCH) are allocated. The base station apparatus can use the PDCCH to transmit, to the mobile station apparatus, a control information (resource assignment information), MSC information (modulation and coding scheme), HARQ processing information (request for hybrid auto-repeat and the like) for transmitting a downlink transport block transmitted using PDSCH, and can use PDSCH for transmitting the downlink transport block to the mobile station apparatus. In other words, in Fig. 7, the base station apparatus can transmit up to five downlink transport blocks at most to the mobile station apparatus in the same subframe.
[008] In each of the uplink carrier elements, the uplink channels, such as a physical uplink control channel (referred to hereafter as a PUCCH) and a physical uplink shared channel ( referred to from this point on as a PUSCH) are allocated. The mobile station apparatus may use the PUCCH and/or the PUSCH to transmit, to the base station apparatus, a HARQ control information for the PDCCH and/or the downlink transport block (referred to hereafter as a HARQ control information). Here, the HARQ control information refers to an information (signal) indicating ACK / NACK (positive acknowledgment / negative acknowledgment) and/or an information (signal) indicating DTX (discontinuous transmission). The information indicating the DTX refers to information indicating that the mobile station apparatus cannot detect the PDCCH transmitted from the base station apparatus. Here, in Fig. 7, there may be a downlink/uplink carrier element in which any of the downlink/uplink channels, such as PDCCH, PDSCH, PUCCH and PUSCH, is not allocated.
[009] Similarly, figure 8 is a diagram illustrating a mobile communication system in which an asymmetric frequency band aggregation (asymmetric carrier aggregation) has been performed in conventional technology. As shown in Figure 8, in the base station apparatus and the mobile station apparatus, the frequency band used in downlink communication and the frequency band used in uplink communication are made to have different bandwidths, carrier elements which are a contiguous and/or non-contiguous frequency band constituting these frequency bands are used in a composite manner and thus communications can be carried out in a wideband frequency band. Figure 8 shows, as an example, that a frequency band used in downlink communication having a bandwidth of 100 MHz is composed of five downlink carrier elements (DCC1, DCC2, DCC3, DCC4 and DCC5), each having a bandwidth of 20 MHz. Figure 7 also shows that a frequency band used in uplink communication having a bandwidth of 40 MHz is composed of two uplink carrier elements (UCC1 and UCC2) , each having a bandwidth of 20 MHz. In Fig. 8 , in each of the downlink/uplink carrier elements, downlink/uplink channels are allocated, and the base station apparatus may use a plurality of PDSCHs assigned by a plurality of PDCCHs, for transmitting a plurality of downlink transport blocks to the mobile station apparatus in the same subframe. The mobile station apparatus thus can use the PUCCH and/or the PUSCH for transmitting a HARQ control information to the base station apparatus.
[0010] Non-Patent Document 1: "LTE-Advanced-LTE evolution towards IMT-Advanced Technology components", 3GPP TSG RAN IMT Advanced Workshop, REV-080030, 7-8 April 2008.
[0011] Non-Patent Document 2: "Initial Access Procedure for Asymmetric Wider Bandwidth in LTE-Advanced", 3GPP TSG RAN WG1 Meeting #55, R1-084249, November 10-14, 2008. Description of the Invention
[0012] However, in conventional technology, it is not specifically clear how the base station apparatus and the mobile station apparatus transmit and receive a HARQ control information when a communication is carried out using a wideband frequency band composed of a plurality of carrier elements.
[0013] When the mobile station apparatus transmits the HARQ control information to the base station apparatus, consideration needs to be given to the power transmission of the mobile station apparatus. For example, in order for the mobile station apparatus to use a large number of uplink carrier elements (using a large number of channels) in the same subframe for transmitting a plurality of HARQ control information pieces, it is necessary transmit HARQ control information at extremely high power. For example, if the mobile station apparatus uses all five PUCCHs allocated in each of the five uplink carrier elements in the same subframe, for transmitting the HARQ control information to the base station apparatus, the station apparatus mobile device will need to have an ability to transmit HARQ control information at extremely high power. Increasing the transmit power capacity in the mobile station apparatus leads to an increase in the capacity of the power amplifier (PA) or the like incorporated in the mobile station apparatus, which increases the cost of the mobile station apparatus.
[0014] As described above, in conventional technology, since it is not specifically clear how the base station apparatus and the mobile station apparatus transmit and receive HARQ control information when a communication is carried out using a band of broadband frequency composed of a plurality of carrier elements, the transmit power of the mobile station apparatus is disadvantageously increased.
[0015] The present invention is made in view of the preceding situation; It is an object of the present invention to provide a mobile communication system, a base station apparatus, a mobile station apparatus and a communication method in which the base station apparatus and the mobile station apparatus can effectively transmit and receive the information of HARQ control, considering the transmit power of the mobile station apparatus, when a communication is carried out using a wideband frequency band composed of a plurality of carrier elements. (1) To achieve the above objective, the present invention takes the following measures. Specifically, the communication system of the present invention is a mobile communication system in which a base station apparatus regulates a plurality of downlink component carriers to a mobile station apparatus, wherein the base station apparatus transmits a transport block. from the plurality of downlink component carriers, and the mobile station apparatus transmits to the base station apparatus a HARQ control information for the downlink transport block on any one of the physical uplink control channel resources corresponding to one or a plurality of component downlink carriers on which the downlink transport block was transmitted. (2) Further, the mobile communication system of the present invention is a mobile communication system in which a base station apparatus regulates a plurality of downlink component carriers to a mobile station apparatus, wherein the base station apparatus base transmits, on a physical downlink shared channel, a downlink transport block to the mobile station apparatus on one or a plurality of component downlink carriers among the plurality of component downlink carriers, and the mobile station apparatus transmits to the base station apparatus a HARQ control information for the downlink transport block on any of the physical uplink control channel resources corresponding to the physical downlink shared channel. (3) Further, in the mobile communication system of the present invention, the HARQ control information is information indicating ACK/NACK. (4) Still, in the mobile communication system of the present invention, the HARQ control information is information indicating DTX (discontinuous transmission). (5) Further, the base station apparatus of the present invention is a base station apparatus that regulates a plurality of downlink component carriers to a mobile station apparatus, the base station apparatus comprising: a unit that transmits a block of downlink transport to the mobile station apparatus for one or a plurality of component downlink carriers among the plurality of component downlink carriers; and a unit that receives, from the base station apparatus, a HARQ control information for the downlink transport block in any one of the physical uplink control channel resources corresponding to one or a plurality of component carriers the downlink transport block in which the downlink transport block was transmitted. (6) Further, the base station apparatus of the present invention is a base station apparatus that regulates a plurality of downlink component carriers to a mobile station apparatus, the base station apparatus comprising: a unit that transmits, in a physical downlink shared channel, a downlink transport block for the mobile station apparatus for one or a plurality of downlink component carriers among the plurality of downlink component carriers; and a unit that receives, from the base station apparatus, a HARQ control information for the downlink transport block on any of the physical uplink control channel resources corresponding to the physical downlink shared channel. (7) Further, in the base station apparatus of the present invention, the HARQ control information is information indicating ACK/NACK. (8) Further, in the base station apparatus of the present invention, the HARQ control information is information indicating DTX (discontinuous transmission). (9) Further, the mobile station apparatus of the present invention is a mobile station apparatus for which a plurality of component downlink carriers are regulated by a base station apparatus, the mobile station apparatus comprising: a receiving unit a downlink transport block from the base station apparatus on one or a plurality of component downlink carriers among the plurality of component downlink carriers; and a unit that transmits, to the base station apparatus, a HARQ control information for the downlink transport block on any of the physical uplink control channel resources corresponding to one or a plurality of component carriers of downlink where the downlink transport block was transmitted. (10) Further, the mobile station apparatus of the present invention is a mobile station apparatus for which a plurality of component downlink carriers are regulated by a base station apparatus, the mobile station apparatus comprising: a receiving unit , on a physical downlink shared channel, a downlink transport block from the base station apparatus on one or a plurality of downlink component carriers among the plurality of downlink component carriers; and a unit that transmits, to the base station apparatus, a HARQ control information for the downlink transport block on any one of the physical uplink control channel resources corresponding to the physical downlink shared channel. (11) Further, in the mobile station apparatus of the present invention, the HARQ control information is information indicating ACK/NACK. (12) Further, in the mobile station apparatus of the present invention, the HARQ control information is information indicating DTX (discontinuous transmission). (13) Further, the communication method of the present invention is a method of communicating a base station apparatus for regulating a plurality of downlink component carriers to a mobile station apparatus, comprising the steps of: transmitting a downlink transport block for the mobile station apparatus on one or a plurality of component downlink carriers among the plurality of component downlink carriers; and receiving, from the mobile station apparatus, a HARQ control information for the downlink transport block on any of the physical uplink control channel resources corresponding to one or a plurality of component downlink carriers where the downlink transport block was transmitted. (14) Further, the communication method of the present invention is a method of communicating from a base station apparatus for regulating a plurality of downlink component carriers to a mobile station apparatus, comprising the steps of: transmitting, on a physical downlink shared channel, a downlink transport block to said mobile station apparatus on one or a plurality of downlink component carriers among said plurality of downlink component carriers; and receiving, from said mobile station apparatus, a HARQ control information for said downlink transport block in any one of the physical uplink control channel resources corresponding to said physical downlink shared channel . (15) Further, in the communication method of the present invention, the HARQ control information is information indicating ACK/NACK. (16) Further, in the communication method of the present invention, the HARQ control information is information indicating DTX (discontinuous transmission). (17) Further, the communication method of the present invention is a method of communicating a mobile station apparatus in which a plurality of component downlink carriers are regulated by a base station apparatus, comprising the steps of: receiving a downlink transport block from the base station apparatus on one or a plurality of component downlink carriers among the plurality of component downlink carriers; and transmitting, to the base station apparatus, a HARQ control information for the downlink transport block on any one of the physical uplink control channel resources corresponding to one or a plurality of component downlink carriers in that the downlink transport block has been transmitted. (18) Furthermore, the communication method of the present invention is a method of communicating a mobile station apparatus in which a plurality of component downlink carriers are regulated by a base station apparatus, comprising the steps of: receiving, in a physical downlink shared channel of a downlink transport block from the base station apparatus on one or a plurality of component downlink carriers among the plurality of component downlink carriers; and transmitting, to the base station apparatus, a HARQ control information for the downlink transport block on any one of the physical uplink control channel resources corresponding to the physical downlink shared channel. (19) Further, in the communication method of the present invention, the HARQ control information is information indicating ACK/NACK. (20) Further, in the communication method of the present invention, the HARQ control information is information indicating DTX (discontinuous transmission).
[0016] According to the present invention, the base station apparatus and the mobile station apparatus that perform communications using a wideband frequency band composed of a plurality of carrier elements can effectively transmit and receive a control information. HARCH Brief Description of Drawings
[0017] Figure 1 is a diagram that conceptually shows the configuration of a physical channel;
[0018] Figure 2 is a block diagram showing a schematic configuration of a base station apparatus according to an embodiment of the present invention;
[0019] Figure 3 is a block diagram showing a schematic configuration of a mobile station apparatus according to the embodiment of the present invention;
[0020] Figure 4 is a diagram showing an example of a mobile communication system applicable to a first mode;
[0021] Figure 5 is a diagram showing another example of the mobile communication system applicable to the first mode;
[0022] Figure 6 is a diagram showing an example of a mobile communication system applicable to a second mode;
[0023] Figure 7 is a diagram illustrating an example of a mobile communication system in which a frequency band aggregation was performed in a conventional technology;
[0024] Figure 8 is a diagram illustrating an example of a mobile communication system in which a frequency band aggregation was performed in conventional technology. Best Modes for Carrying Out the Invention
[0025] An embodiment of the present invention will now be described with reference to the associated drawings. Figure 1 is a diagram showing an example of the configuration of a channel in the embodiment of the present invention. A physical downlink channel is configured with a physical broadcast channel (PBCH), a physical downlink control channel (PDCCH), a physical downlink shared channel (PDSCH), a physical multicast channel (PMCH), a physical control format indicator channel (PCFICH) and a physical hybrid ARQ indicator channel (PHICH). A physical uplink channel is configured with a physical uplink shared channel (PUSCH), a physical uplink control channel (PUCCH), and a physical random access channel (PRACH).
[0026] The physical broadcast channel (PBCH) maps a broadcast channel (BCH) at 40 millisecond intervals. Blind detection is performed at 40 millisecond timing. In other words, an explicit signaling is not performed for the timing provision. A subframe including the physical broadcast channel (PBCH) is self-decodable (autodetectable).
[0027] The physical downlink control channel (PDCCH) is a channel used for notifying (broadcasting) the physical downlink shared channel (PDSCH) resource assignment, a hybrid automatic repetition request (HARQ) information for downlink data and an uplink transmission allowance which is the physical uplink shared channel (PUSCH) resource allocation to a mobile station apparatus. The PDCCH is composed of a plurality of control channel elements (CCE); the mobile station apparatus detects the PDCCH composed of the CCEs to thereby receive the PDCCH from the base station apparatus. CCE is composed of a plurality of resource element groups (REG, also referred to as miniCCE) that are pervasive in the frequency and time domains. Here, the resource element refers to a unitary resource that is composed of an OFDM symbol (time component) and a subcarrier (frequency component); for example, in a frequency domain in the same OFDM symbol, the REG is composed of four contiguous downlink resource elements in the frequency domain, others in addition to a downlink pilot channel. For example, a PDCCH is composed of 1, 2, 4 or 8 CCEs in which numbers (CCE indices) for identifying CCEs are contiguous.
[0028] For each of the mobile station apparatus and each of the types, the PDCCH is individually subjected to encoding (separate encoding). In other words, the mobile station apparatus detects a plurality of PDCCHs, and acquires an information indicating downlink or uplink resource assignment and other control signals. The value of a CRC (Cyclic Redundancy Check) that can identify a format is provided for each PDCCH; the mobile station apparatus performs the CRC on each of a set of CCEs that may constitute the PDCCH, and acquires the PDCCH on which the CRC was successful. This is also referred to as blind decoding; the range of a set of CCEs in which the mobile station apparatus performs blind decoding and which constitute the PDCCH is also referred to as a search space. In other words, the mobile station apparatus performs blind decoding on the CCEs in the search space for detecting the PDCCH.
[0029] When the PDCCH is used to indicate the physical downlink shared channel (PDSCH) resource assignment, the mobile station apparatus receives, in accordance with the resource assignment indicated by the PDCCH from the base station apparatus , using physical downlink shared channel (PDSCH), data (downlink data (downlink shared data channel (DL-SCH)) and/or downlink control data (downlink control information) ). In other words, this PDCCH is used for transmitting a signal (referred to from this point on as a "downlink transmission permit signal" or a "downlink grant") for performing resource allocation in the downlink. When the PDCCH is used for resource allocation indication of the physical uplink shared channel (PUSCH), the mobile station apparatus transmits, in accordance with the resource allocation indicated by the PDCCH from the base station apparatus, using the channel physical uplink shared (PUSCH), data (uplink data (uplink shared channel (UL-SCH)) and/or uplink control data (uplink control information)). In other words, this PDCCH is used for transmitting a signal (referred to from this point on as an "uplink transmission permission signal" or an "uplink grant") for data transmission permission for uplink .
[0030] The physical downlink shared channel (PDSCH) is a channel used for the transmission of downlink data (downlink shared channel: DL-SCH) or a radio call information (radio call channel: SHP). Physical multicast channel (PMCH) is a channel used for transmitting a multicast channel (MCH); a downlink reference signal, an uplink reference signal, and a physical downlink synchronization signal are allocated separately.
[0031] Here, downlink data (DL-SCH) refers, for example, to user data transmission; DL-SCH is a transport channel. In DL-SCH, HARQ and dynamically adaptive radio link control are supported, and beamforming can be used. In DL-SCH, dynamic resource assignment and semi-static resource assignment are supported.
[0032] Physical uplink shared channel (PUSCH) is a channel used primarily for transmitting uplink data (uplink shared channel: UL-SCH). When the base station apparatus performs a scheduling in the mobile station apparatus, the uplink control information (uplink control signal) is also transmitted using the PUSCH. This uplink control information includes: a CSI channel state information (or a channel statistical information) that indicates the downlink channel state; a CQI downlink channel quality indicator; a PMI precoding matrix indicator; an RI rating indicator; and a HARQ control information for the PDCCH and/or a downlink transport block (information indicating ACK/NACK and/or information indicating DTX).
[0033] Here, the uplink data (UL-SCH) refers, for example, to the transmission of user data; UL-SCH is a transport channel. On UL-SCH, HARQ and dynamically adaptive radio link control are supported, and beamforming can be used. In UL-SCH, dynamic resource assignment and semi-static resource assignment are supported.
[0034] In the uplink data (UL-SCH) and the downlink data (DL-SCH), a radio resource control signaling (referred to hereafter as an "RRC signaling") is exchanged between the base station apparatus and the mobile station apparatus, a MAC (Medium Access Control) control element and the like may also be included.
[0035] The physical uplink control channel (PUCCH) is a channel used for transmitting an uplink control information (uplink control signal). Here, for example, the uplink control information includes: the CSI channel state information which indicates the uplink channel state; the CQI uplink channel quality indicator; the PMI precoding matrix indicator; the RI rating indicator; a scheduling request (SR) to the mobile station apparatus to request a resource allocation for transmission of the uplink data (transmission request on UL-SCH); and the HARQ control information for the PDCCH and/or a downlink transport block (information indicating ACK/NACK and/or information indicating DTX).
[0036] The physical control format indicator channel (PCFICH) is a channel used for notifying the number of OFDM symbols used in PDCCH to the mobile station apparatus; is transmitted in each subframe. Physical hybrid ARQ indicator channel (PHICH) is a channel used for ACK/NACK transmission used in HARQ of uplink data. The physical random access channel (PRACH) is a channel used for transmitting a random access preamble, and it has a guard time. As shown in Figure 1, the mobile communication system of the present embodiment includes base station apparatus 100 and mobile station apparatus 200 (200-1 to 200-3). Base station handset setup
[0037] Figure 2 is a block diagram showing a schematic configuration of the base station apparatus 100 according to the embodiment of the present invention. Base station apparatus 100 includes a data control portion 101, a transmit data modulation portion 102, a radio portion 103, a scaling portion 104, a channel estimation portion 105, a transmission data demodulation portion. receiving 106, a data extracting portion 107, a higher layer 108, and an antenna 109. The radio portion 103, the scaling portion 104, the channel estimating portion 105, the receiving data demodulation portion 106 , the data extraction portion 107, the upper layer 108 and the antenna 109 constitute a receiving portion; the data control portion 101, the transmit data modulation portion 102, the radio portion 103, the scaling portion 104, the highest layer 108 and the antenna 109 constitute a transmission portion.
[0038] The antenna 109, the radio portion 103, the channel estimation portion 105, the receive data demodulation portion 106 and the data extraction portion 107 perform processing in an uplink physical layer. The antenna 109, the radio portion 103, the transmit data modulation portion 102 and the data control portion 101 perform processing in a downlink physical layer.
[0039] The data control portion 101 receives a transport channel from the scheduling portion 104. The data control portion 101 maps the transport channel and a signal and a channel generated in the physical layer on the physical channel based in a scaling information input from the scaling portion 104. Each piece of data mapped as described above is extracted to the transmit data modulation portion 102.
[0040] The transmit data modulation portion 102 modulates the transmit data in an OFDM system. The transmit data modulation portion 102 performs, on the inputted data from the data control portion 101, based on the scaling information from the scaling portion 104 and a modulation scheme and a coding scheme corresponding to each. PRB, a signal processing, such as data modulation, encoding, serial/parallel conversion of the input signal, IFFT (Inverse Fast Fourier Transform) processing, CP (cyclic prefix) insertion and filtering, generates the transmission data and extracts them to the radio portion 103. Here, the scheduling information includes a downlink PRB physical resource block assignment information, such as a physical resource block position information composed of time and frequency; the modulation scheme and coding scheme corresponding to each PRB include information such as the modulation scheme: 16QAM and the coding rate: 2/3 coding rate.
[0041] The radio portion 103 up converts the input modulation data from the transmit data modulation portion 102 to the radio frequency to generate a radio signal, and transmits it to the mobile station apparatus 200 via antenna 109. Radio portion 103 also receives the uplink radio signal from mobile station apparatus 200 via antenna 109 and downconverts to a baseband signal and extracts the receive data for the portion. of channel estimate 105 and the receive data demodulation portion 106.
[0042] The scheduling portion 104 performs a processing in a media access control (MAC) layer. The scaling portion 104 performs mapping on a logical channel and a transport channel, scaling on downlink and uplink (such as HARQ processing and selection of a transport format) and the like. So that the processing portions of the individual physical layers are controlled integrally, in the scaling portion 104, interfaces (not shown) are present between the scaling portion 104 and the antenna 109, the radio portion 103, the estimating portion of channel 105, the receive data demodulation portion 106, the data control portion 101, the transmit data modulation portion 102 and the data extract portion 107.
[0043] In downlink scheduling, based on a feedback information (such as an uplink channel status information (CSI, CQI, PMI, RI) and an ACK/NACK information for the downlink data ) received from the mobile station apparatus 200, an information available in the PRB of each mobile station apparatus 200, buffer conditions, a scheduling information input from the highest layer 108 and the like, the scheduling portion 104 performs a selection processing in a downlink transport format for the modulation of each piece of data (such as a transmission form, that is, the assignment of a physical resource block and the modulation scheme, the coding scheme and the like ), a retransmission control in HARQ and the generation of scheduling information used in the downlink. The scheduling information used in downlink scheduling is extracted to the data control portion 101.
[0044] In the uplink scheduling, based on the result of the uplink channel state estimate (a radio channel state) extracted by the channel estimation portion 105, the resource allocation request from the apparatus of mobile station 200, an information available in the PRB of each mobile station apparatus 200, the scheduling information input from the highest layer 108 and the like, the scheduling portion 104 performs selection processing in a transport link format. for the modulation of each piece of data (such as a form of transmission, i.e. the assignment of a physical resource block and the modulation scheme, the coding scheme and the like) and the generation of the scheduling information used in the uplink scheduling. The scheduling information used in uplink scheduling is extracted to the data control portion 101.
[0045] Further, the scaling portion 104 maps the downlink logical channel introduced from the highest layer 108 into the transport channel, and extracts it to the data control portion 101. Further, the portion of schedule 104 processes, as necessary, the control data inputted from the data extraction portion 107 and acquired on the uplink and the transport channel, and then maps them onto the uplink logical channel and extracts them to the highest layer 108.
[0046] In order to demodulate the uplink data, the channel estimate portion 105 estimates the uplink channel state from the uplink demodulation (DRS) reference signal, and extracts the estimate result for the receive data demodulation portion 106. Further, in order to perform the uplink scaling, the channel estimation portion 105 estimates the uplink channel state from the uplink measurement reference signal ( SRS: good quality reference signal) and extracts the estimate result for the scaling portion 104.
[0047] The receive data demodulation portion 106 also serves as an OFDM demodulation portion and/or a DFT-Broadcast-OFDM (DFT-S-OFDM) demodulation portion that demodulates the receive data modulated in an OFDM system and/or an SC-FDMA system. Based on the result of the uplink channel state estimate inputted from the channel estimation portion 105, the receive data demodulation portion 106 performs, on the modulation data inputted from the radio portion 103, a processing such as a DFT conversion, a subcarrier mapping, an IFFT conversion and filtering, performs a demodulation processing on them and extracts them to the data extraction portion 107.
[0048] The data extraction portion 107 checks whether the data inputted from the receive data demodulation portion 106 is correct or wrong, and extracts the result of the check (positive sign ACK / negative sign NACK) for the scaling portion 104. The data extraction portion 107 also separates the inputted data from the receive data demodulation portion 106 to the transport channel and the control data in the physical layer, and extracts them to the scaling portion 104. The separate control data includes: the CSI channel status information notified from the mobile station apparatus 200; the CQI downlink channel quality indicator; the PMI precoding matrix indicator; the RI rating indicator; the HARQ control information and the scheduling request.
[0049] The highest layer 108 performs a processing in a packet data convergence protocol (PDCP) layer, a radio link control layer (RLC) and a radio resource control layer (RRC). So that the processing portions of the lower layers are fully controlled, in the upper layer 108, interfaces (not shown) are present between the upper layer 108 and the scaling portion 104, the antenna 109, the radio portion 103, the channel estimate portion 105, the receive data demodulation portion 106, the data control portion 101, the transmit data modulation portion 102, and the data extraction portion 107.
[0050] The higher layer 108 includes a radio resource control portion 110 (also referred to as the control portion). The radio resource control portion 110 performs management over various types of timing information, management over system information, radio call control, management over the communication state of each mobile station apparatus 200, motion management , such as point-to-point transfer, management over the buffer conditions of each mobile station apparatus 200, management over the connection regulation of unicast and multicast carriers, management over mobile station identifiers (UEID) and the like. The higher layer 108 exchanges information to another base station apparatus and information to a higher node. Setting up the mobile station device 200
[0051] Figure 3 is a block diagram showing a schematic configuration of the mobile station apparatus 200 according to the embodiment of the present invention. The mobile station apparatus 200 includes a data control portion 201, a transmit data modulation portion 202, a radio portion 203, a scaling portion 204, a channel estimation portion 205, a channel demodulation portion. receive data 206, a data extract portion 207, a higher layer 208, and an antenna 209. The data control portion 201, the transmit data modulation portion 202, the radio portion 203, the radio portion scaling 204, top layer 208 and antenna 209 constitute a transmit portion; the radio portion 203, the scaling portion 204, the channel estimation portion 205, the receive data demodulation portion 206, the data extract portion 207, the highest layer 208 and the antenna 209 constitute a portion. of reception.
[0052] The data control portion 201, the transmit data modulation portion 202 and the radio portion 203 perform processing in an uplink physical layer. The radio portion 203, the channel estimate portion 205, the receive data demodulation portion 206 and the data extraction portion 207 perform a downlink physical layer processing.
[0053] The data control portion 201 receives a transport channel from the scheduling portion 204. The data control portion 201 maps the transport channel and a signal and a channel generated in the physical layer on the physical channel based in a scaling information input from the scaling portion 204. Each piece of data mapped as described above is extracted to the transmit data modulation portion 202.
[0054] The transmit data modulation portion 202 modulates the transmit data in an OFDM system and/or an SC-FDMA system. The transmit data modulation portion 202 performs, on the inputted data from the data control portion 201, a signal processing such as data modulation, DFT (discrete Fourier transform) processing, a subcarrier mapping, an IFFT (Inverse Fast Fourier Transform) processing, CP (cyclic prefix) insertion and filtering generates the transmission data and extracts it to the radio portion 203.
[0055] The radio portion 203 up converts the input modulation data from the transmit data modulation portion 202 to the radio frequency to generate a radio signal, and transmits it to the base station apparatus 100 via antenna 209. The radio portion 203 also receives the uplink radio signal from the mobile station apparatus 200 via antenna 209 and downconverts it to a baseband signal and extracts the receive data for the channel estimation portion 205 and receive data demodulation portion 206.
[0056] The scheduling portion 204 performs a processing in a media access control (MAC) layer. The scaling portion 204 performs mapping on a logical channel and a transport channel, scaling on downlink and uplink (such as HARQ processing and selection of a transport format) and the like. So that the processing portions of the individual physical layers are fully controlled, in the scaling portion 204, interfaces (not shown) are present between the scaling portion 204 and the antenna 209, the data control portion 201, the transmit data modulation portion 202, the channel estimate portion 205, the receive data demodulation portion 206, the data extraction portion 207, and the radio portion 203.
[0057] In downlink scheduling, based on the scheduling information (the transport format and the HARQ relay information) from the base station apparatus 100 and the higher layer 208 and the like, the scheduling portion 204 performs a reception control on the transport channel and on the physical signal and on the physical channel and the generation of scheduling information used in HARQ retransmission control and downlink scheduling. The scheduling information used in downlink scheduling is extracted to the data control portion 201.
[0058] In the uplink scheduling, based on the uplink input buffer conditions from the highest layer 208, the uplink scheduling information (the transport format, the HARQ retransmission information and the like) from the base station apparatus 100 inputted from the data extraction portion 207, the scheduling information inputted from the highest layer 208 and the like, the scheduling portion 204 performs a scheduling processing for mapping the logical channel of uplink from the highest layer 208 on the transport channel and the generation of the scheduling information used in uplink scheduling. With respect to the uplink transport format, an information notified from the base station apparatus 100 is used. The scaling information described above is extracted for the 201.
[0059] Furthermore, the scaling portion 204 maps the uplink logical channel introduced from the highest layer 208 into the transport channel, and extracts it to the data control portion 201. The scaling portion 204 also extracts, for the data control portion 201, the input CSI downlink channel status information from the channel estimation portion 205, the downlink channel quality indicator CQI, the pre- matrix indicator. PMI encoding, the classification indicator RI and the result of the CRC check entered from the data extraction portion 207. Furthermore, the scaling portion 204 processes, as necessary, the control data entered from the extraction portion data 207 is acquired on the downlink and transport channel, and then maps them onto the downlink logical channel and extracts them to the higher layer 208.
[0060] In order to demodulate the downlink data, the channel estimate portion 205 estimates the downlink channel state from the downlink (RS) reference signal, and extracts the estimate result for the portion. of receive data demodulation 206. In order to notify the base station apparatus 100 of the result of estimating the channel state (radio channel state) of the downlink, the channel estimating portion 205 estimates the channel state of the downlink from the downlink (RS) reference signal and extract the estimation result for the scaling portion 204 as the downlink channel status information CSI, the downlink channel quality indicator CQI, the PMI precoding matrix indicator and the RI classification indicator.
[0061] The receive data demodulation portion 206 de-modulates the modulated receive data in the OFDM system. The receive data demodulation portion 206 performs, based on the result of the downlink channel state estimate inputted from the channel estimation portion 205, demodulation processing on the modulation data inputted from the radio portion. 203, and extracts them to the data extraction portion 207.
[0062] The data extraction portion 207 performs a CRC check on the data inputted from the receive data demodulation portion 206, checks whether or not they are correct, and extracts the result of the check (positive acknowledgment / acknowledgment negative NACK) to the scaling portion 204. The data extraction portion 207 also separates the input data from the receive data demodulation portion 206 to the transport channel and the control data in the physical layer, and extracts it. to the scheduling portion 204. The separate control data includes scheduling information such as downlink or uplink resource assignment and HARQ control information on uplink.
[0063] The highest layer 208 performs a processing in a packet data convergence protocol (PDCP) layer, a radio link control layer (RLC) and a radio resource control layer (RRC). So that the processing portions of the lower layers are fully controlled, in the upper layer 208, interfaces (not shown) are present between the upper layer 208 and the scaling portion 204, the antenna 209, the control portion of data 201, the transmit data modulation portion 202, the channel estimate portion 205, the receive data demodulation portion 206, the data extraction portion 207, and the radio portion 203.
[0064] The highest layer 208 includes a radio resource control portion 210 (also referred to as the control portion). The radio resource control portion 210 performs management over various types of timing information, management over system information, radio call control, management over the communication state of each mobile station apparatus 200, motion management , such as point-to-point transfer, management over buffer conditions, management over connection regulation of unicast and multicast carriers, and management over mobile station identifiers (UEID). (First Mode)
[0065] A first modality of the mobile communication system using the base station apparatus 100 and the mobile station apparatus 200 will now be described. In the first embodiment, the base station apparatus 100 semi-statically sets the first PUCCH to the mobile station apparatus 200, and dynamically sets the second PUCCH to the mobile station apparatus 200 in the same subframe as the subframe in which the first PUCCH was regulated; the mobile station apparatus 200 uses the first PUCCH and the second PUCCH, and thereby can transmit the HARQ control information to the base station apparatus 100. The base station apparatus 100 semi-statically sets the first PUCCH to the mobile station apparatus 200, and dynamically sets the second PUCCH to the mobile station apparatus 200 in the same subframe as the subframe in which the first PUCCH is set; the mobile station apparatus 200 uses the first PUCCH or the second PUCCH, and thereby can transmit the HARQ control information to the base station apparatus 100. Here, the mobile station apparatus 200 bundles (groups or clusters) the HARQ control information and thus can transmit it to the base station apparatus 100. The mobile station apparatus 200 also multiplies (using a plurality of bits) the HARQ control information, and thereby can transmit it to the base station apparatus 100. Here, the HARQ control information (HARQ control signal) transmitted by the mobile station apparatus 200 to the lower molding box 100 refers to an information (signal) indicating ACK/NACK for the PDCCH and/or the downlink transport block transmitted from the base station apparatus 100 and/or an information (signal) indicating the DTX. DTX refers to information (signal) indicating that mobile station apparatus 200 cannot detect PDCCH from base station apparatus 100.
[0066] Although in the following description of the first mode a frequency band is defined as a bandwidth (Hz), it can be defined as the number of resource blocks (RB) composed of frequencies and times. In the present embodiment, a carrier element (also referred to hereinafter as a "carrier component", a "carrier element" or a "carrier component") refers to a frequency band (narrow band) aggregated when the Base station apparatus 100 and mobile station apparatus 200 perform communication using a wideband frequency band (may be a system band). Base station apparatus 100 and mobile station apparatus 200 aggregate a plurality of elements of carrier for the formation of a wideband frequency band, and use the carrier elements in a composite way and thus can perform high-speed data communication (the transmission and reception of an information) (aggregation For example, base station apparatus 100 and mobile station apparatus 200 aggregate five carrier elements each having a frequency width of 20 MHz to form a band. having a wideband frequency width of 100 MHz, and use the five carrier elements in a composite manner, and thus can carry out a communication.
[0067] The carrier element also refers to each of the frequency bands (narrowband) (for example, frequency bands each having a bandwidth of 20 MHz) constituting this wideband frequency band (for example , a frequency band having a bandwidth of 100 MHz). The carrier element also refers to each of the (central) carrier frequencies of the frequency bands (narrow band) constituting this wideband frequency band. In other words, the downlink carrier element has a partial band (width) of the frequency band available when the base station apparatus 100 and the mobile station apparatus 200 transmit and receive the downlink information; the uplink carrier element has a partial band (width) of the frequency band available when the base station apparatus 100 and the mobile station apparatus 200 transmit and receive the uplink information. The carrier element can also be defined as a unit for constituting a specific physical channel (for example, PDCCH, PDSCH, PUCCH and PUSCH).
[0068] Here, the carrier element can be allocated in a contiguous frequency band or in a non-contiguous frequency band; a plurality of carrier elements which are a contiguous and/or non-contiguous frequency band are aggregated, and thus it is possible to form a wideband frequency band. It is not necessary for a frequency band (which can be the DL system bandwidth or the DL system bandwidth), which is composed of the downlink carrier elements and which is used in link communication is equal in bandwidth to a frequency band (which can be the UL system band or the UL system bandwidth), which is composed of the uplink carrier elements and which is used in uplink communication. Even if the frequency band used in downlink communication is different in bandwidth from the frequency band used in uplink communication, the base station apparatus 100 and the mobile station apparatus 200 will use the carrier elements in a way. composite and thus can carry out a communication (asymmetric frequency band aggregation).
[0069] Figure 4 is a diagram showing an example of the mobile communication system to which the first mode is applicable. Figure 4 shows that, as an example illustrating the first embodiment, a frequency band having a bandwidth of 100 MHz and used in downlink communication is composed of five downlink carrier elements (DCC1, DCC2, DCC3, DCC4 and DCC5), each having a bandwidth of 20 MHz. Figure 4 also shows that a frequency band having a bandwidth of 100 MHz and used in uplink communication is composed of five link carrier elements uplink (UCC1, UCC2, UCC3, UCC4 and UCC5), each having a bandwidth of 20 MHz. In Figure 4, in each of the downlink/uplink carrier elements, a downlink/uplink channel is mapped. Here, in Figure 4, a downlink/uplink carrier element may be present, in which any of the downlink/uplink channels, such as PDCCH, PDSCH, PUCCH and PUSCH, are not mapped. .
[0070] In Fig. 4, the base station apparatus 100 uses a plurality of PDCCHs in each of the downlink carrier elements, and thereby can regulate (allocate) a plurality of PDSCHs in the same subframe. For example, the base station apparatus 100 uses, in each of DCC1, DCC2, DCC3, DCC4 and DCC5, five PDCCHs (four PDCCHs indicated by black areas and one PDCCH indicated by oblique lines), and thus can regulate the PDSCH in each of the DCC1, the DCC2, the DCC3, the DCC4 and the DCC5. Here, the base station apparatus 100 regulates a plurality of PDCCHs on a downlink carrier element (using a plurality of PDCCHs, each PDCCH being encoded separately), and thereby can also regulate a plurality of PDSCHs. For example, base station apparatus 100 uses three PDCCHs set in DCC3, and thus can set three PDSCHs (e.g., can set PDSCHs in DCC1, DCC2 and DCC4) in the same subframe.
Here, in order to use a plurality of regulated PDCCHs in a downlink carrier element and thereby regulate a plurality of PDSCHs, the base station apparatus 100 transmits a component carrier identifier information (referred to as from this point also as "CII: Carrier Indicator Information" or "CIF: Carrier Indicator Field") in the PDCCHs. In other words, the base station apparatus 100 transmits component carrier indicator information indicating which carrier element is used for transmitting the PDSCH on each of the PDCCHs. For example, the base station apparatus 100 transmits, in each of the three PDCCHs in the DCC3, a component carrier indicator information indicating the setting of the PDSCH in the DCC1, a component carrier indicator information indicating the setting of the PDSCH in the DCC2 and a carrier indicator information indicating the PDSCH setting in the DCC4.
[0072] Furthermore, the base station apparatus 100 uses a plurality of PDSCHs on each downlink carrier element and thereby can transmit, in the same subframe, a plurality of downlink transport blocks to the apparatus. of mobile station 200. For example, base station apparatus 100 uses five PDSCHs in DCC1, DCC2, DCC3, DCC4 and DCC5, and thus can transmit downlink transport blocks in the same subframe. (up to five maximum) for the mobile station apparatus 200.
[0073] In Fig. 4, the mobile station apparatus 200 uses a plurality of PDSCHs on each carrier element in the uplink and thus can transmit, in the same subframe, a plurality of uplink transport blocks for the mobile station apparatus 200. For example, mobile station apparatus 200 uses five PDSCHs in UCC1, UCC2, UCC3, UCC4 and UCC5, and thus can transmit link transport blocks in the same subframe. (up to five maximum) to the base station apparatus 100.
[0074] Furthermore, in Fig. 4, the mobile station apparatus 200 can transmit, to the base station apparatus 100, the HARQ control information for (a plurality of) PDCCHs and/or (a plurality of) blocks of downlink transport transmitted from the base station apparatus 100. For example, the mobile station apparatus 200 may transmit, to the base station apparatus 100 in the same subframe, the HARQ control information for five PDCCHs and/or five downlink transport blocks transmitted from the base station apparatus 100 using a plurality of PUCCHs (e.g., five PUCCHs, i.e., PUCCHs indicated by oblique lines, grid lines, mesh lines, vertical lines, and horizontal lines). The mobile station apparatus 200 also bundles or multiplexes the HARQ control information for the five PDCCHs and/or the five downlink transport blocks transmitted from the base station apparatus 100, and thereby can transmit it. to base station apparatus 100 using a single PUCCH (e.g., any of the PUCCHs indicated by oblique lines, grid lines, mesh lines, vertical lines, and horizontal lines).
[0075] Furthermore, the mobile station apparatus 200 bundles or partially multiplexes the HARQ control information for the five PDCCHs and/or downlink transport blocks transmitted in DCC1, DCC2 and DCC3. The mobile station apparatus 200 also bundles or partially multiplexes the HARQ control information for the PDCCHs and/or the downlink transport blocks transmitted in DCC4 and DCC5. Mobile station apparatus 200 may also transmit, to base station apparatus 100 in the same subframe, HARQ control information which has been partially bundled and multiplexed, using a plurality of PUCCHs (e.g., two PUCCHs, i.e., PUC-CHs indicated by oblique lines and grid lines).
Here, when the mobile station apparatus 200 bundles and transmits the HARQ control information to the base station apparatus 100, a piece of HARQ control information is calculated (generated) from the HARQ control information to (a plurality of) PDCCHs and/or (a plurality of) downlink transport blocks, and the calculated HARQ control information piece is transmitted to the base station apparatus 100. For example, the mobile station apparatus 200 calculates a logical OR or a logical AND on the information (a plurality of HARQ control information pieces) indicating the DTX and/or the ACK/NACK for each of (the plurality of) PDCCHs and/or (the plurality of ) downlink transport blocks, and can transmit the calculated control information (a HARQ control information piece) to the base station apparatus 100. For example, the mobile station apparatus 200 calculates a logical OR and an AND logical from an information tion indicating the DTX and/or the ACK/NACK for each of the PDCCHs and/or downlink transport blocks transmitted from the base station apparatus 100 in the DCC1, in the DCC2, in the DCC3 and in the DCC5, and may transmit the calculated control information for base station apparatus 100.
[0077] When the mobile station apparatus 200 multiplexes and transmits the HARQ control information to the base station apparatus 100, the mobile station apparatus 200 transmits, to the base station apparatus 100, a plurality of pieces of information. control expressing all combinations of the HARQ control information for each of (a plurality of) PDCCHs and/or (a plurality of) downlink transport blocks (not information necessary to express all combinations, but partial pieces of control information can be transmitted to the base station apparatus 100). For example, the mobile station apparatus 200 expresses, with a plurality of bits, combinations of information indicating the DTX and/or the ACK/NACK for each of the (of the plurality of) PDCCHs and/or (of the (the plurality of) blocks of downlink transport, and thereby can transmit them to the base station apparatus 100. For example, the mobile station apparatus 200 expresses, with a plurality of bits, combinations of information indicating the DTX and/or the ACK / NACK for each of the PDCCHs and/or downlink transport blocks transmitted from the base station apparatus 100 in DCC1, DCC2, DCC3 and DCC5, and thereby can transmit them to the base station apparatus 100 base station 100.
[0078] In Figure 4, the base station apparatus 100 can regulate (specify) an uplink carrier element for the transmission of HARQ control information by the mobile station apparatus 200. For example, the base station apparatus 100 can semi-statically regulate, with RRC signaling, the uplink carrier element for transmission of HARQ control information by mobile station apparatus 200. For example, base station apparatus 100 can semi-statically regulate. ca, with the RRC signaling, the uplink carrier element, where the PUCCH is mapped, for the transmission of the HARQ control information by the mobile station apparatus 200. Fig. 4 shows an example where as the element of uplink carrier, where the PUCCH is mapped, for the transmission of the HARQ control information by the mobile station apparatus 200, the base station apparatus 100 regulates the UCC3. Here, as the uplink carrier element for transmitting the HARQ control information by the mobile station apparatus 200, the base station apparatus 100 can also regulate a plurality of uplink carrier elements.
[0079] In Figure 4, the base station apparatus 100 regulates (allocates), to the mobile station apparatus 200, the resources (a plurality of) of PUCCHs for transmitting the HARQ control information to (a plurality of) PDCCHs and/or (a plurality of) downlink transport blocks by the mobile station apparatus 200. In the following description of the present embodiment, for ease of description, the PUCCH that is regulated (allocated) semi-statically by the apparatus from base station 100 to mobile station apparatus 200 is described as the first PUCCH, and the PUCCH that is dynamically regulated (allocated) by base station apparatus 100 to mobile station apparatus 200 is described as a second PUCCH. Figure 4 shows that the base station apparatus 100 semi-statically adjusts the first PUCCHs (the PUCCHs indicated by grid lines, mesh lines, vertical lines, and horizontal lines) to the mobile station apparatus 200, and dynamically adjusts the second PUCCH (the PUCCH indicated by oblique lines) to base station apparatus 100 in the same subframe as the subframe in which the first PUCCHs are tuned.
[0080] In other words, for example, the base station apparatus 100 uses RRC signaling and thus can regulate (allocate) the first PUCCHs (the PUCCHs indicated by grid lines, mesh lines, vertical lines and horizontal lines) to the mobile station apparatus 200. Here, the base station apparatus 100 connects (corresponds to) each of the downlink carrier elements to each of the resources of the first PUCCHs, and thereby can regulate. them to the mobile station apparatus 200. Figure 4 shows that the base station apparatus 100 connects the DCC1 to the first PUCCH indicated by grid lines, DCC2 to the first PUCCH indicated by grid lines, DCC4 to the first PUCCH indicated by vertical lines and the DCC5 to the first PUCCH indicated by horizontal lines, and sets each of the first PUCCHs to the mobile station apparatus 200. In other words, the base station apparatus 100 can semi-statically regulate (allocate) an array of first PU CCHs for the transmission of HARQ control information by the mobile station apparatus 200. While here, in Fig. 4, the base station apparatus 100 sets a set of four PUC-CHs to the mobile station apparatus 200, the base station 100 can set, as the set of first PUCCHs, any number of sets (the size (number) of first PUCCHs can be set). For example, the base station apparatus 100 may change the set (number) of first PUCCHs according to the capacity of the mobile station apparatus 200 in a cell or the number of carrier elements when communicating with the mobile station apparatus. mobile station 200 is performed. For example, base station apparatus 100 may set two first PUCCHs to mobile station apparatus 200 when communication with mobile station apparatus 200 is performed using three downlink carrier elements. Base station apparatus 100 can semi-statically set the first adjustable PUCCHs (where the size (number) of sets can be changed) for mobile station apparatus 200.
[0081] Also, the base station apparatus 100 connects (corresponds to) PDSCHs transmitted in each of the downlink carrier elements to each of the resources of the first PUCCHs, and thereby can regulate them to the apparatus of mobile station 200. For example, Fig. 4 shows that base station apparatus 100 connects the PDSCH transmitted in DCC1 to the first PUCCH indicated by the grid lines, the PDSCH transmitted in DCC2 to the first PUCCH indicated by the mesh lines, the transmitted PDSCH in the DCC4 to the first PUCCH indicated by the vertical lines and the PDSCH transmitted in the DCC5 to the first PUCCH indicated by the horizontal lines, and sets each of the first PUCCHs to the mobile station apparatus 200. While here, in Figure 4, the base station apparatus 100 sets a set of the first four PUCCHs to the mobile station apparatus 200, the base station apparatus 100 can set, as the set of first PUCCHs, any number of sets (the size (number) of prims. PUCCHs) can be regulated.
Furthermore, for example, the base station apparatus 100 associates the second PUCCH (the PUCCH indicated by oblique lines) to the PDCCH, and can adjust (allocate) it dynamically to the mobile station apparatus 200. For example , the base station apparatus 100 associates the second PUCCH with the position of the PDCCH (the PDCCH indicated by oblique lines) in a PDCCH resource region (PDCCH resource), the PDCCH is regulated in the downlink carrier element, and can dynamically regulates the second PUCCH to the mobile station apparatus 200. In other words, the base station apparatus 100 associates the second PUCCH in which the position of the PDCCH is regulated, in the PDCCH resource, and can instruct the mobile station apparatus 200 to transmit the HARQ control information using the second allocated PUCCH in which the position of the PUCCH resource region (PUCCH resource) is regulated. Here, the PUCCH resource region may be cell-specific, e.g., base station apparatus 100, using the broadcast channel (broadcast information). The PUCCH resource region can also be set specifically for apparatus, for example, base station apparatus 100, using RRC signaling.
[0083] In other words, the mobile station apparatus 200 maps, according to how the PDCCH is regulated in the PDCCH region, the HARQ control information in the second PUCCH in the PUCCH region, and can transmit it to the base station apparatus 100. Here, the correspondence between the PDCCH set on the downlink carrier element and the second PUCCH set on the uplink carrier element is specified, for example, by making the first CCE index of the CCEs constituting the PDCCH correspond to the index of the second PUCCH (figure 4 shows the first CCE index of the CCEs constituting the PDCCH indicated by oblique lines with the index of the second PUCCH indicated by oblique lines).
[0084] Furthermore, the base station apparatus 100 may specifically regulate for the cell the connection (match) between each of the downlink carrier elements in which the PDCCH is regulated and an uplink carrier element in which the second PUCCH is regulated using broadcast information (broadcast channel). Furthermore, the base station apparatus 100 may specifically regulate to the mobile station apparatus the connection (match) between each of the downlink carrier elements where the PDCCH is regulated and an uplink carrier element in which the second PUCCH is regulated. Figure 4 shows that the base station apparatus 100 uses broadcast information or RRC signaling, and thereby connects DCC3 and UCC3. For example, in Fig. 4, when base station apparatus 100 turns on DCC2 and UCC3, base station apparatus 100 associates the second PUCCH with the position of the PDCCH in the PDCCH resource region, the PDCCH is set in DCC2. and regulates the second PUCCH on the UCC3.
[0085] In other words, the second PUCCH dynamically regulated by the base station apparatus 100 is only associated between the downlink carrier element and the uplink carrier element connected by broadcast information or by RRC signaling. Although, here, in Figure 4, base station apparatus 100 connects only one downlink carrier element (DCC3) and one uplink carrier element (UCC3), base station apparatus 100 may also connect a plurality of downlink carrier elements and a plurality of uplink carrier elements. For example, in Figure 4, the base station apparatus 100 can turn on DCC2 and UCC2, and turn on DCC3 and UCC4. In this case, the PDCCH set on the downlink carrier element and the second PUCCH set on the uplink carrier element are associated only between the together-linked downlink carrier element and the uplink carrier element ( DCC2 and UCC2, and DCC3 and UCC4).
[0086] In Figure 4, the base station apparatus 100 uses the RRC signaling, and thereby semi-static regulates (allocates) the first PUCCHs (the PUCCHs indicated by grid lines, mesh lines, vertical lines and horizontal lines) to the mobile station apparatus 200, and dynamically sets the second PUCCH (the PUCCH indicated by oblique lines) to the mobile station apparatus 200 in the same subframe as the subframe in which the first PUCCH is allocated. As described above, mobile station apparatus 200 transmits, to base station apparatus 100, HARQ control information for (a plurality of) PDCCHs and/or (a plurality of) downlink transport blocks using a plurality of PUCCHs or a single PUCCH. In other words, the mobile station apparatus 200 uses the first PUCCH and the second PUCCH set by the base station apparatus 100, and thereby can transmit the HARQ control information to the base station apparatus 100. The base station apparatus mobile 200 also uses the first PUCCH or second PUCCH allocated by the base station apparatus 100, and thus can transmit the HARQ control information to the base station apparatus 100. In this case, the mobile station apparatus 200 bundles the HARQ control information, and can transmit it to the base station apparatus 100. The mobile station apparatus 200 also multiplexes the HARQ control information, and can transmit it to the base station apparatus 100.
[0087] The first PUCCH that is semi-statically regulated by the base station apparatus 100 to the mobile station apparatus 200 will be described. In Figure 4, the base station apparatus 100 can apply group scaling to the first PUCCHs (the PUCCHs indicated by grid lines, mesh lines, vertical lines, and horizontal lines) allocated semi-statically using the signaling of RRC. In other words, the base station apparatus 100 can set the first PUCCHs for a plurality of mobile station apparatus 200, and can create the first PUCCHs shared by the mobile station apparatus 200. Figure 4 shows that the base station apparatus 100 applies group scaling to the first PUCCHs indicated by grid lines, mesh lines, vertical lines and horizontal lines, and that the first PUCCHs are individually shared by the mobile station apparatus 200. Figure 4 shows that the second PUCCH is dynamically regulated by base station apparatus 100 is dynamically scaled to a certain mobile station apparatus 200 (dynamic scaling is applied).
[0088] Likewise, figure 5 is a diagram that shows another example of the mobile communication system to which the first mode is applicable. Figure 5 shows that a frequency band having a bandwidth of 100 MHz and used in downlink communication is composed of five downlink carrier elements (DCC1, DCC2, DCC3, DCC4 and DCC5), each having a bandwidth of 20 MHz. Figure 5 also shows that a frequency band having a bandwidth of 100 MHz and used in downlink communication is composed of five uplink carrier elements (UCC1, UCC2, UCC3, UCC4 and UCC5), each having a bandwidth of 20 MHz.
[0089] Figure 5 differs from Figure 4 in that the base station apparatus 100 uses a plurality of PDCCHs (the PDCCHs indicated by oblique lines and mesh lines) in a downlink carrier element (DCC3), and regulates (allocates) a plurality of PDSCHs. As described above, the base station apparatus 100 transmits the component carrier indicator information on each of the PDCCHs in a downlink carrier element, and thereby can regulate (allocate) the same downlink carrier element. as the downlink carrier element transmitting the PDCCH of the PDSCHs allocated in different downlink carrier elements. Figure 5 shows an example where the base station apparatus 100 transmits a plurality of PDCCHs (the PDCCHs indicated by oblique lines and mesh lines) in DCC3 and regulates the PDSCH of each of DCC3 and DCC4.
[0090] In Fig. 5, the base station apparatus 100 regulates (allocates) 100 regulates (allocates) the resources (a plurality of) of PUCCHs for the transmission of HARQ control information to (a plurality of) PDCCHs and/or (a plurality of) downlink transport blocks by the mobile station apparatus 200. Figure 5 shows that the base station apparatus 100 semi-statically regulates the first PUCCHs (the PUCCHs indicated by grid lines, mesh lines , vertical lines and horizontal lines) to mobile station apparatus 200, and dynamically adjusts the second PUCCH (the PUCCHs indicated by oblique lines and mesh lines) to mobile station apparatus 200 in the same subframe as the subframe in which the first PUCCH is regulated.
[0091] In other words, in Figure 5, the base station apparatus 100 uses RRC signaling and thus can semi-static regulate the first PUCCHs (the PUCCHs indicated by grid lines, mesh lines, lines vertical and horizontal lines) to the mobile station apparatus 200. Here, the base station apparatus 100 connects (corresponds to) each of the downlink carrier elements to each of the resources of the first PUCCHs, and thus can set them to the mobile station apparatus 200. Figure 5 shows that the base station apparatus 100 connects DCC1 to the first PUCCH indicated by grid lines, DCC2 to the first PUCCH indicated by vertical lines, and DCC5 to the first PUCCH indicated by grid lines by horizontal lines, and regulates each of the first PUCCHs to the mobile station apparatus 200. Here, as described above, the base station apparatus 100 can semi-statically regulate (allocate) a set of first PUCCHs for transmitting the information control statement of HARQ by the mobile station apparatus 200. Although, in Fig. 5, the base station apparatus 100 sets a set of three PUCCHs to the mobile station apparatus 200, the base station apparatus 100 can set, like the set. of first PUCCHs, any number of sets (size (number) of first PUCCHs can be regulated). Base station apparatus 100 can semi-statically set the first adjustable PUCCHs (where the size (number) of sets can be changed) for mobile station apparatus 200.
The base station apparatus 100 associates the second PUCCH (the PUCCHs indicated by oblique lines and mesh lines) to the PDCCH, and can adjust (allocate) it dynamically to the mobile station apparatus 200. In other words, the base station apparatus 100 may set, with each of a plurality of PDCCHs (the PDCCHs indicated by oblique lines and mesh lines) transmitted in DCC3, a plurality of second PUCCHs (the PUCCHs indicated by oblique lines and mesh lines) allocated to DCC3. Figure 5 shows that base station apparatus 100 associates the second PUCCH indicated by oblique lines to the PDCCH indicated by oblique lines, and dynamically regulates the second PUCCH to mobile station apparatus 200, and that base station apparatus 100 associated with the second PUCCH indicated by mesh lines to the PDCCH indicated by mesh lines, and dynamically adjusts the second PUCCH to the mobile station apparatus 200.
Here, the base station apparatus 100 uses broadcast information or RRC signaling and thereby turns on (matches) the downlink carrier element in which the PDCCH is regulated and the uplink carrier element in which the second PUCCH is regulated. Specifically, in Figure 5, the base station apparatus 100 connects the DCC3 and the UCC3, associates a plurality of second PUCCHs (the PUCCHs indicated by oblique lines and mesh lines) set in the UCC3 to the position of each of the plurality of PDCCHs ( the PDCCHs indicated by oblique lines and mesh lines) in the PDCCH region, each of the plurality of PDCCHs is allocated in DCC3, and can regulate each of the second PUCCHs. In other words, in one of the downlink carrier elements and one of the uplink carrier elements connected by broadcast information or RRC signaling from the base station apparatus 100, a plurality of PDCCHs and a plurality of PUCCHs are dynamically associated with each other.
[0094] As described above, the mobile station apparatus 200 transmits to the base station apparatus 100 the HARQ control information for (a plurality of) PDCCHs and/or (a plurality of) downlink transport blocks to the base station apparatus 100 a plurality of PUCCHs or a single PUCCH. In other words, the mobile station apparatus 200 uses the first PUCCH or the second PUCCH, and thereby can transmit the HARQ control information to the base station apparatus 100. In this case, the mobile station apparatus 200 bundles the HARQ control information, and thereby can transmit it to the base station apparatus 100. The mobile station apparatus 200 also multiplexes the HARQ control information, and transmits it to the base station apparatus 100.
[0095] As in the description of Figure 4, in Figure 5, the base station apparatus 100 can apply a group scaling to the first PUCCHs (the PUCCHs indicated by grid lines, vertical lines and horizontal lines) allocated semi-static using if the RRC signaling. In other words, the base station apparatus 100 can set the first PUCCHs for a plurality of mobile station apparatus 200, and can create the first PUCCHs shared by the mobile station apparatus 200. Figure 5 shows that the base station apparatus 100 applies group scaling to the first PUCCHs indicated by grid lines, vertical lines, and horizontal lines, and that the first PUCCHs are individually shared by the mobile station apparatus 200. Figure 5 shows the second PUCCHs (the PUCCHs indicated by oblique lines and mesh lines) dynamically regulated by the base station apparatus 100 are dynamically scaled to a certain mobile station apparatus 200 (dynamic scaling is applied).
[0096] As described above, in the first mode, since the mobile station apparatus 200 transmits the HARQ control information, the base station apparatus 100 can semi-statically regulate the first PUCCH to the mobile station apparatus 200, and dynamically smoothing the second PUCCH for the mobile station apparatus 200 into the same subframe as the subframe in which the first PUCCH is allocated. The mobile station apparatus 200 also uses the first PUCCH and/or the second PUCCH set by the base station apparatus 100, and thereby can transmit the HARQ control information to the base station apparatus 100. mobile station apparatus 200 bundles the HARQ control information, and transmits it to the base station apparatus 100. The mobile station apparatus 200 also multiplexes the HARQ control information, and transmits it to the base station apparatus 100.
[0097] The base station apparatus 100 and the mobile station apparatus 200 transmit and receive the HARQ control information as described above, and thus the base station apparatus 100 can semi-statically regulate the first PUCCH for each one of the mobile station apparatus 200, and the base station apparatus 100 can change (modify) the (the number of) first PUCCHs that are set for each of the mobile station apparatus 200 according to, for example, the number of carrier elements used in communication and the conditions of radio resources in the cell. The base station apparatus 100 changes (modifies) the first PUCCHs that are semi-statically allocated to each of the mobile station apparatus 200, and thus it is possible to effectively allocate the uplink resources and effectively use the radio resources.
[0098] The base station apparatus 100 applies group scaling when it sets the first PUCCH and thus even if the mobile station apparatus 200 does not use the first PUCCH (for example, the mobile station apparatus 200 uses only one element of downlink carrier/uplink for communication with the base station apparatus 100), it is possible to set the first PUCCH to the other mobile station apparatus and effectively use the uplink resources. Furthermore, the base station apparatus 100 associates the second PUCCH allocated in the uplink carrier element with the position of the PDCCH allocated in the downlink carrier element, and dynamically regulates the second PUCCH, and thus it is possible to effectively regulate the second PUCCH for the mobile station apparatus 200.
[0099] The mobile station apparatus 200 bundles or multiplexes the HARQ control information and transmits it to the base station apparatus 100, and thus it is possible to reduce the transmit power in the mobile station apparatus 200 and transmit the information of HARQ control. The mobile station apparatus 200 uses any one of (a small number of) (a plurality of) PUCCHs regulated by the base station apparatus 100, and transmits the HARQ control information, and thus it is possible to transmit the HARQ control information. HARQ while reducing the transmit power in the mobile station apparatus 200.
[00100] In other words, when the base station apparatus 100 and the mobile station apparatus 200 use a wideband frequency band of a plurality of carrier elements for carrying out a communication, it is possible to effectively transmit and receive the HARQ control information with consideration given to the method of regulation of the resource by the base station apparatus 100 and the transmit power in the mobile station apparatus 200. Here, though, in the first mode, the example of the operation of the base station apparatus 100 and if the mobile station apparatus 200 in the mobile communication system has undergone a symmetric frequency band aggregation, it is naturally possible to apply the same method to the mobile communication system which has undergone asymmetric frequency band aggregation. (Second Mode)
[00101] The second embodiment of the present invention will now be described. In the second embodiment, the base station apparatus 100 semi-statically sets the first PUCCH to the mobile station apparatus 200, transmits to the mobile station apparatus 200 an information indicating activation and/or deactivation for the downlink component carrier and dynamically sets the second PUCCH to the mobile station apparatus 200 in the same subframe as the subframe in which the first PUCCH is allocated, whereas the mobile station apparatus 200 uses the first PUCCH and/or the second PUCCH enabled from according to the information indicating activation and/or deactivation, and thereby can transmit the HARQ control information to the base station apparatus 100. Furthermore, the base station apparatus 100 semi-statically regulates the first PUCCH to the mobile station apparatus 200, transmits, to the mobile station apparatus 200, information indicating activation and/or deactivation for the downlink component carrier and dynamically regulates. the second PUCCH to the mobile station apparatus 200 in the same subframe as the subframe in which the first PUCCH is allocated, whereas the mobile station apparatus 200 uses the first PUCCH and/or the second PUCCH selected in accordance with the information indicating activation and/or deactivation, and thereby can transmit the HARQ control information to the base station apparatus 100. In this case, the mobile station apparatus 200 can bundle the HARQ control information and transmit to the base station apparatus 100. The mobile station apparatus 200 may also multiplex the HARQ control information and transmit it to the base station apparatus 100. In the second mode, the same operations of the base station apparatus 100 and the mobile station apparatus 200 shown in the first embodiment are applied.
[00102] Figure 6 is a diagram that illustrates an example of the second mode. On the left side of Figure 6, in a horizontal direction, it is shown that a frequency band having a bandwidth of 100 MHz and used in downlink communication is composed of five downlink carrier elements (DCC1, DCC2, DCC3, DCC4 and DCC5). In a vertical direction, time (subframe) is shown; as an example, a downlink subframe No. n, a downlink subframe No. n+m, a downlink subframe No. n+p and a downlink subframe No. n+q are conceptually shown (the subframe downlink is referred to from this point on as a subframe). On the right side of Figure 6, the processing flow of the base station apparatus 100 and the mobile station apparatus 200 corresponding to the diagram on the left side is shown conceptually.
[00103] In Fig. 6, the base station apparatus 100 can regulate, for the mobile station apparatus 200, a set of downlink carrier elements that could be scaled to the mobile station apparatus 200 to receive the PDSCH on the link downward. In the following description of the present embodiment, the set of downlink carrier elements is referred to as a downlink carrier element set (DCC set: downlink component carrier set). For example, base station apparatus 100 transmits, to mobile station apparatus 200, the RRC signaling including information for adding and/or removing downlink carrier elements, and may semi-statically regulate the DCC set. (add and/or remove downlink carrier elements). In other words, the base station apparatus 100 can regulate the DCC set for each of the mobile station apparatus 200 in accordance with the radio resource conditions in a cell to be controlled, the capacity of each of the station apparatus. mobile 200 and the transmission path conditions of each of the mobile station apparatus 200.
[00104] In Fig. 6, subframe No. n, subframe No. n+m, subframe No. n+p and subframe No. n+q indicate subframes in which the five downlink carrier elements (the DCC1, DCC2, DCC3, DCC4 and DCC5) are regulated as the DCC set. Although, in Fig. 6, as an example, base station apparatus 100 sets five downlink carrier elements as the DCC set, base station apparatus 100 can set any number of downlink carrier elements as the set. of CCD.
[00105] Furthermore, in Figure 6, the base station apparatus 100 transmits, to the mobile station apparatus 200, the activation and/or deactivation information for the downlink carrier elements (the information indicating activation and/or disabling), and may enable and/or disable the set of downlink carrier elements (which may be a set of downlink carrier elements that could be scheduled to receive PDSCH on the downlink). In the following description of the present embodiment, this set of downlink carrier elements is referred to as a downlink carrier element enable set (DCC active set: downlink component carrier active set). Here, the active set of DCCs is set to the downlink carrier elements among the set of DCCs described above. The base station apparatus 100 may also set the active set of DCCs as the downlink carrier elements on which the mobile station apparatus 200 tries to detect the PDCCH (for monitoring the PDCCH).
[00106] In Figure 6, subframe No. n indicates a subframe in which five downlink carrier elements (DCC1, DCC2, DCC3, DCC4 and DCC5 indicated by being colored white) are not activated ( disabled). Subframe No. n+m indicates a subframe in which four downlink carrier elements (the DCC1, the DCC2, the DCC3 and the DCC5 indicated by mesh lines) are activated. Here, subframe No. n+m can be recognized as a subframe in which, for subframe No. n, DCC1, DCC2, DCC3 and DCC5 are turned on and off for DCC4 is maintained. Subframe No. n+p indicates a subframe in which three downlink carrier elements (the DCC1, the DCC3 and the DCC5 indicated by mesh lines) are activated. Here, subframe No. n+p can be recognized as a subframe in which, for subframe No. n+m, activation for DCC1 and DCC3 is maintained, DCC2 and DCC5 are disabled, and DCC4 is activated. Subframe No. n+q indicates a subframe in which five downlink carrier elements (the DCC1, the DCC2, the DCC3, the DCC4 and the DCC5 indicated by being colored white) are disabled (not enabled). Here, subframe No. n+q can be recognized as a subframe in which, for subframe No. n+p, DCC1, DCC3 and DCC4 are disabled and the disablement for DCC2 and DCC5 is maintained.
[00107] For example, the base station apparatus 100 transmits the activation and/or deactivation information to the downlink carrier elements (the information indicating activation and/or deactivation) in the PDCCH, and can dynamically control (regular, indicate) the active set of DCC. Here, the base station apparatus 100 uses the PDCCH, and thus can control activation for the downlink carrier elements. The base station apparatus 100 also uses PDCCH, and thus can control deactivation for the downlink carrier elements. Furthermore, the base station apparatus 100 uses the PDCCH and thus can control on and off for the downlink carrier elements in the same subframe (in the same timing). As described above, the base station apparatus 100 regulates the active set of DCCs to the mobile station apparatus 200 and thus it is possible to save power consumption in the mobile station apparatus 200 (to reduce the number of DCCs in which the PDCCH to be monitored by the mobile station apparatus 200 is allocated), and to obtain a power saving in the mobile station apparatus 200.
[00108] Although, here, in the following description, the base station apparatus 100 uses the PDCCH to control the active set of DCCs, the base station apparatus 100 can use RRC signaling and a MAC control element (a MAC signaling) and control the active set of DCC. For example, the base station apparatus 100 can control the active set of DCCs by associating the active set of DCCs with discontinuous reception (DRX) in which a control is performed using the MAC control element. The base station apparatus 100 uses the PDCCH to control the active set of DCC, and thus it is possible to control more dynamically (eg at 1 ms intervals) the active set of DCC, and further improve the effects on the economy. of power of the mobile station apparatus 200. On the other hand, the base station apparatus 100 uses the RRC signaling or the MAC control element to control the active set of DCC, and thus it is possible to control more reliably , the active set of DCC.
[00109] The processing flow of the base station apparatus 100 and the mobile station apparatus 200 on the right side of figure 6 will be described. Prior to subframe No. n of Figure 6, the base station apparatus 100 sets the five downlink carrier elements (the DCC1, the DCC2, the DCC3, the DCC4 and the DCC5) as the DCC set for the mobile station 200 (step S1). Before subframe No. n, so that the mobile station apparatus 200 transmits the HARQ control information, the base station apparatus 100 notifies (transmits) to the mobile station apparatus 200 the timing information (parameter) for semi-static regulation of (a plurality of) first PUCCHs using RRC signaling. For example, in order for the mobile station apparatus 200 to transmit the HARQ control information, the base station apparatus 100 can notify, to the mobile station apparatus 200, information about four resources of the first PUCCHs using RRC signaling. .
[00110] In figure 6, for example, the base station apparatus 100 can notify, to the mobile station apparatus 200, the regulation information about the PUCCHs connected to each of the DCC1, the DCC2, the DCC4 and the DCC5 as the tuning information of the first PUCCHs. Further, for example, base station apparatus 100 may regulate the connection between DCC3 and an uplink carrier element. In other words, the PUCCH regulated in an uplink carrier element connected to DCC3 is associated, as the second PUCCH, to the PDCCH transmitted in DCC3.
Subframe No. n indicates a subframe in which the five downlink carrier elements (the DCC1, the DCC2, the DCC3, the DCC4 and the DCC5) regulated by the base station apparatus 100 as a set of DCCs are not activated. In other words, subframe No. n indicates a subframe in which the base station apparatus 100 does not regulate the active set of DCCs to the mobile station apparatus 200. In subframe No. n, the mobile station apparatus 200 releases the resources of the first PUCCHs on which the base station apparatus 100 notifies the timing information. Specifically, the mobile station apparatus 200 releases the resources of the first PUCCH attached to each of DCC1, DCC2, DCC3, DCC4, and DCC5.
[00112] Between subframe No. and subframe No. n+m, the base station apparatus 100 regulates the four downlink carrier elements (the DCC1, the DCC2, the DCC3 and the DCC5) to the mobile station apparatus 200 as the active set of DCC (step S2). In other words, the disabling for DCC4 is kept. Here, the mobile station apparatus 200 can activate the features of the first PUCCHs in accordance with the active set of DCCs that are regulated by the base station apparatus 100. Specifically, the mobile station apparatus 200 can activate, in accordance with the active set of DCC, the resources of the first PUCCH connected to each of DCC1, DCC2 and DCC5. In other words, the resources of the first PUCCH connected to DCC4 maintain the release (the mobile station apparatus 200 can maintain the release of the resources of the first PUCCH connected to the DCC4). Specifically, according to the active set of DCC that is regulated by the base station apparatus 100, based on the timing information in the first PUCCHs notified by the base station apparatus 100, the first three PUCCHs are regulated (allocated) semi-static to the mobile station apparatus 200.
[00113] In subframe No. n+m, the base station apparatus 100 uses (a plurality of) PDCCHs for the regulation (allocation) (of a plurality of) of PDSCHs to the mobile station apparatus 200 (step S3). Base station apparatus 100 also uses (a plurality of) PDSCHs to transmit, to mobile station apparatus 200, (a plurality of) downlink transport blocks in the same subframe. For example, base station apparatus 100 transmits the PDSCH on each of the four downlink carrier elements (the DCC1, the DCC2, the DCC3 and the DCC5) and regulates four PDSCHs. Base station apparatus 100 also uses the four PDSCHs, and transmits, to mobile station apparatus 200, the four downlink transport blocks in the same subframe. Base station apparatus 100 associates the second PUCCH with the PDCCH transmitted in DCC3, and dynamically regulates (allocates) the second PUCCH to mobile station apparatus 200. In other words, base station apparatus 100 regulates the active set of DCCs, and thereby dynamically sets the second PUCCH to the mobile station apparatus 200 in the same subframe as (a plurality of) semi-statically set first PUCCHs.
In the uplink subframe corresponding to subframe No. n+m, the mobile station apparatus 200 transmits the HARQ control information for (a plurality of) PDCCHs and/or (a plurality of) link transport blocks to base station apparatus 100 (step S4). In other words, the mobile station apparatus 200 uses the first three activated (added, maintained) PUCCHs according to the active set of DCC and/or the dynamically allocated second PUCCH, and thereby can transmit the control information of HARQ to the base station apparatus 100. In this case, the mobile station apparatus 200 bundles the HARQ control information, and can transmit it to the base station apparatus 100. The mobile station apparatus 200 also multiplexes the HARQ control information, and can transmit it to the base station apparatus 100.
[00115] Between the subframe No. n+m and the subframe No. n+p, the base station apparatus 100 regulates the three downlink carrier elements (the DCC1, the DCC3 and the DCC4) to the mobile station apparatus 200 as the active set of DCC (step S5). In other words, the base station apparatus 100 disables the two downlink carrier elements (the DCC2 and the DCC5). Here, the mobile station apparatus 200 can activate and release, in accordance with the active set of DCCs by the base station apparatus 100, the resources of the PUCCH. In other words, the mobile station apparatus 200 can activate, according to the active set of DCC, the resources of the first PUCCHs linked to DCC1 and DCC4 (it can maintain activation for the features of the first PUCCHs linked to DCC1, and add activation for the features of the first PUCCHs connected to DCC4). The mobile station apparatus 200 can also release the resources of the first PUCCHs connected to DCC2 and DCC5. Specifically, according to the active set of DCC that is regulated by the base station apparatus 100, based on the timing information in the first PUCCHs notified by the base station apparatus 100, two first PUCCHs are regulated semi-statically ( allocated) to the mobile station apparatus 200.
[00116] In subframe No. n+p, the base station apparatus 100 uses (a plurality of) PDCCHs to regulate (a plurality of) PDSCHs to the mobile station apparatus 200 (step S6). Base station apparatus 100 also uses (a plurality of) PDSCHs to transmit, to mobile station apparatus 200, (a plurality of) downlink transport blocks in the same subframe. For example, base station apparatus 100 transmits the PDCCH on each of the three activated downlink carrier elements (the DCC1, the DCC3 and the DCC4), and regulates the three PDSCHs. Base station apparatus 100 also uses the three PDSCHs, and transmits, to mobile station apparatus 200, the three downlink transport blocks using the three PDSCHs. Furthermore, base station apparatus 100 associates the second PUCCH with the PDCCH transmitted in DCC3, and dynamically sets the second PUCCH to mobile station apparatus 200.
[00117] In the uplink subframe corresponding to subframe No. n+p, the mobile station apparatus 200 transmits the HARQ control information for (a plurality of) PDCCHs and/or (a plurality of) link transport blocks to base station apparatus 100 (step S7). In other words, the mobile station apparatus 200 uses the first two activated (added, maintained) PUCCHs according to the active set of DCC and/or the dynamically allocated second PUCCH, and thereby can transmit the control information of HARQ to the base station apparatus 100. In this case, the mobile station apparatus 200 bundles the HARQ control information, and can transmit it to the base station apparatus 100. The mobile station apparatus 200 also multiplexes the HARQ control information, and can transmit it to the base station apparatus 100.
[00118] Between subframe No. n+p and subframe No. n+q, the base station apparatus 100 disables the five downlink carrier elements (the DCC1, the DCC2, the DCC3, the DCC4 and the DCC5) ( step S8). Here, the mobile station apparatus 200 can release the resources of the first PUCCH in accordance with the active set of DCC by the base station apparatus 100. In other words, the mobile station apparatus 200 releases in accordance with the active set of DCC , the resources of the first PUCCHs linked to DCC1, to DCC2, to DCC3, to DCC4 and to DCC5 (can release the resources of the first PUCCHs linked to DCC1, DCC3 and DCC5, and can maintain the release of resources from the first PUCCHs connected to DCC2 and DCC5).
[00119] Another example of the processing flow of the base station apparatus 100 and the mobile station apparatus 200 in figure 6 will be further described. As described above, prior to subframe No. n of Fig. 6, the base station apparatus 100 sets the five downlink carrier elements (the DCC1, the DCC2, the DCC3, the DCC4 and the DCC5) as a set of DCCs for the mobile station apparatus 200 (step S1). Prior to subframe No. n, base station apparatus 100 uses RRC signaling to semi-statically regulate (allocate) (a plurality of) first PUCCHs for transmission of HARQ control information by mobile station apparatus 200 For example, in Fig. 6, base station apparatus 100 can regulate the first four PUCCHs connected to DCC1, DCC2, DCC4 and DCC5 to base station apparatus 100. For example, base station apparatus 100 regulates the connection between DCC3 and an uplink carrier element. In other words, the PUCCH regulated in an uplink carrier element connected to DCC3 is associated, as the second PUCCH, to the PDCCH transmitted in DCC3.
Subframe No. n indicates a subframe in which the five downlink carrier elements (the DCC1, the DCC2, the DCC3, the DCC4 and the DCC5) regulated by the base station apparatus 100 as the DCC set are activated. In other words, subframe No. n indicates a subframe in which the base station apparatus 100 does not regulate the active set of DCCs to the mobile station apparatus 200. Here, the first four PUCCHs connected to DCC1, to DCC2, to DCC4 and DCC5 are set (allocated) to mobile station apparatus 200.
[00121] Between subframe No. and subframe No. n+m, the base station apparatus 100 regulates the four downlink carrier elements (the DCC1, the DCC2, the DCC3 and the DCC5) to the mobile station apparatus 200 as the active set of DCC (step S2). In other words, the disabling for DCC4 is kept. Here, the mobile station apparatus 200 can select (modify) the resource of the first PUCCHs for transmitting the HARQ control information in accordance with the active set of DCC that is regulated by the base station apparatus 100. mobile station 200 can select (modify), according to the active set of DCC, the resources of the first PUCCHs connected to DCC1, DCC2 and DCC5 as the resources of the first PUCCHs for transmitting HARQ control information. Here, the resources of the first PUCCHs connected to the DCC4 are kept regulated (allocated) to the mobile station apparatus 200.
[00122] In subframe No. n+m, the base station apparatus 100 uses (a plurality of) PDCCHs to regulate (allocate) (a plurality of) PDSCHs to the mobile station apparatus 200 (step S3). Base station apparatus 100 also uses (a plurality of) PDSCHs to transmit, to mobile station apparatus 200, (a plurality of) downlink transport blocks in the same subframe. For example, base station apparatus 100 transmits the PDCCH on each of the four downlink carrier elements (the DCC1, the DCC2, the DCC3 and the DCC5) and regulates four PDSCHs. Base station apparatus 100 also uses the four PDSCHs, and transmits, to mobile station apparatus 200, the four downlink transport blocks in the same subframe. Base station apparatus 100 associates the second PUCCH with the PDCCH transmitted in DCC3, and dynamically regulates (allocates) the second PUCCH to mobile station apparatus 200. In other words, base station apparatus 100 regulates the active set of DCCs, and thereby dynamically sets the second PUCCH to the mobile station apparatus 200 in the same subframe as (a plurality of) semi-statically set first PUCCHs.
[00123] In the uplink subframe corresponding to subframe No. n+m, the mobile station apparatus 200 transmits the HARQ control information for (a plurality of) PDCCHs and/or (a plurality of) link transport blocks to base station apparatus 100 (step S4). In other words, the mobile station apparatus 200 uses the first three PUCCHs selected (modified) according to the active set of DCC and/or the dynamically allocated second PUCCH, and thereby can transmit the HARQ control information to the base station apparatus 100. In this case, the mobile station apparatus 200 bundles the HARQ control information, and can transmit it to the base station apparatus 100. The mobile station apparatus 200 also multiplexes the information. HARQ control, and can transmit it to the base station apparatus 100.
[00124] Between the subframe No. n+m and the subframe No. n+p, the base station apparatus 100 regulates the three downlink carrier elements (the DCC1, the DCC3 and the DCC4) to the mobile station apparatus 200 as the active set of DCC (step S5). In other words, the base station apparatus 100 disables the two downlink carrier elements (the DCC2 and the DCC5). Here, the mobile station apparatus 200 can select (modify), in accordance with the active set of DCCs by the base station apparatus 100, the resources of the first PUCCH for transmitting the HARQ control information. In other words, the mobile station apparatus 200 can select (modify), according to the active set of DCC, the resources of the first PUCCHs connected to DCC1 and DCC4 as the resources of the first PUCCHs for transmission of control information. HARCH Here, the resources of the first PUCCHs connected to DCC2 and DCC5 are kept regulated (allocated) to the mobile station apparatus 200.
[00125] In subframe No. n+p, the base station apparatus 100 uses (a plurality of) PDCCHs to regulate (a plurality of) PDSCHs to the mobile station apparatus 200 (step S6). Base station apparatus 100 also uses (a plurality of) PDSCHs to transmit, to mobile station apparatus 200, (a plurality of) downlink transport blocks in the same subframe. For example, base station apparatus 100 transmits the PDCCH on each of the three activated downlink carrier elements (the DCC1, the DCC3 and the DCC4) and regulates three PDSCHs. Base station apparatus 100 also uses the three PDSCHs, and transmits, to mobile station apparatus 200, the three downlink transport blocks using the three PDSCHs. Furthermore, base station apparatus 100 associates the second PUCCH with the PDCCH transmitted in DCC3, and dynamically sets the second PUCCH to mobile station apparatus 200.
[00126] In the uplink subframe corresponding to subframe No. n+p, the mobile station apparatus 200 transmits the HARQ control information for (a plurality of) PDCCHs and/or (a plurality of) link transport blocks to the base station apparatus 100. In other words, the mobile station apparatus 200 uses the first two PUCCHs selected (modified) according to the active set of DCC and/or the dynamically allocated second PUCCH, and thereby can transmit HARQ control information to base station apparatus 100. In this case, mobile station apparatus 200 bundles HARQ control information, and can transmit it to base station apparatus 100. mobile 200 also multiplexes the HARQ control information, and can transmit it to the base station apparatus 100.
[00127] Between subframe No. n+p and subframe No. n+q, the base station apparatus 100 disables the five downlink carrier elements (the DCC1, the DCC2, the DCC3, the DCC4 and the DCC5). In this case, the first four PUCCHs connected to DCC1, DCC2, DCC4 and DCC5 are set (allocated) to mobile station apparatus 200.
[00128] As described above, in the second mode, the base station apparatus 100 regulates the active set of DCC to the mobile station apparatus 200, and the mobile station apparatus 200 activates (adds, maintains) and/or releases , according to the active set of DCC that is regulated by the base station apparatus 100, the resources of the first PUCCHs, and uses the first PUCCHs and/or the second PUCCHs, and thereby can transmit the HARQ control information to the base station apparatus 100. The base station apparatus 100 sets the active set of DCCs to the mobile station apparatus 200, and the mobile station apparatus 200 selects (modifies) in accordance with which active set of DCCs is set. by the base station apparatus 100, and uses the first PUCCHs and/or the second PUCCHs, and thereby can transmit the HARQ control information to the base station apparatus 100. In this case, the mobile station apparatus 200 bundles the HARQ control information, and can trans transmit it to the base station apparatus 100. The mobile station apparatus 200 also multiplexes the HARQ control information, and may transmit it to the base station apparatus 100.
[00129] As described above, the base station apparatus 100 and the mobile station apparatus 200 transmit and receive the HARQ control information and thus the base station apparatus 100 can regulate the first PUCCHs according to the active set of DCC, with the result that it is possible to effectively regulate the uplink resources. The base station apparatus 100 also regulates the first PUCCHs according to the active set of DCCs, and thus it is possible to effectively regulate the first PUCCHs to the mobile station apparatus 200. Furthermore, the mobile station apparatus 200 bundles or multiplexes the HARQ control information, and transmits it to the base station apparatus 100, and thus it is possible to reduce the transmit power in the mobile station apparatus 200 and transmit the HARQ control information. The mobile station apparatus 200 uses any one of (a small number of) (a plurality of) PUCCHs regulated by the base station apparatus 100, and transmits the HARQ control information, and thus it is possible to transmit the information. of HARQ control while reducing the transmit power in the mobile station apparatus 200.
[00130] In other words, when the base station apparatus 100 and the mobile station apparatus 200 use a wideband frequency band composed of a plurality of carrier elements for carrying out a communication, it is possible to obtain the method of resource regulation by the base station apparatus 100 and an effective transmission and reception of the HARQ control information with consideration given to the transmit power in the mobile station apparatus 200. Although, here, in the second embodiment, a description has been given of the example of the operation of the base station apparatus 100 and the mobile station apparatus 200 in the mobile communication system which has been subjected to a symmetric frequency band aggregation, the same method can of course be applied to the mobile communication system which has been subjected to a asymmetric frequency band aggregation.
[00131] A program that is operated in the mobile station apparatus 200 and the base station apparatus 100 according to the present invention is a program (a program for performing a computer function) for controlling a CPU and the like for obtaining of the functions of the present embodiment according to the present invention. Then, information manipulated by these devices is temporarily stored in RAM, after processing, and then is stored in various ROMS and HDDs, is read by the CPU as needed, and is subjected to modification and writing. As a recording medium that stores the program, any medium such as a semiconductor medium (eg a ROM or a non-volatile memory card), an optical recording medium (eg a DVD, an MO, a MD, a CD or a BD) or a magnetic recording medium (eg a magnetic tape or a floppy disk) can be used. The loaded program is performed to obtain the functions of the present modality described above, and, in addition, based on an instruction from the program, a processing is performed by an operating system or in conjunction with another application program or similar, with the result that the functions of the present invention can be obtained. When the program is distributed on the market, the program can be stored on a portable recording medium and distributed or transferred to a server computer connected through a network, such as the Internet. In this case, a server computer storage device is also included in the present invention. Part of or all of the mobile station apparatus 200 and the base station apparatus 100 described above and in accordance with the present embodiment may be embodied as an LSI which is a typical integrated circuit. Each function block of the base station apparatus 100 and the base station apparatus 100 can be individually integrated on a chip or part or all of it can be integrated on a chip. The method of obtaining an integrated circuit is not limited to an LSI; it can be obtained by a dedicated circuit or a general purpose processor. When advances in semiconductor technology produce a technology for obtaining an integrated circuit rather than an LSI, it is also possible to use the integrated circuit produced by such a technology. Although the embodiment of the present invention has been described above in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and a design and the like, without departing from the spirit of the present invention, are also included in the scope of embodiments. . Although the embodiment of the present invention has been described above in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and the design and the like without departing from the spirit of the present invention are also included in the scope of embodiments. List of Reference Numbers 100 Base station apparatus 101 data control portion 103 radio portion 104 scaling portion 105 channel estimation portion 106 receive data demodulation portion 107 data extraction portion 108 highest layer 109 antenna 110 radio resource control portion 200 (200-1, 200-2, 200-3) mobile station apparatus 201 data control portion 202 transmit data modulation portion 203 radio portion 204 scaling portion 205 portion of channel estimation 206 receive data demodulation portion 207 data extraction portion 208 higher layer 209 antenna 210 radio resource control portion

权利要求:
Claims (8)
[0001]
1. A mobile station apparatus that receives, from a base station apparatus, a downlink transport block using a scaled physical downlink shared channel using a physical downlink control channel, the mobile station apparatus characterized in that it comprises: a scaling unit that configures a plurality of physical uplink first control channel resources on a single uplink component carrier, the plurality of physical uplink first control channel resources being allocated semi-statically, by the base station apparatus using a parameter received using a radio resource control signal, to the mobile station apparatus, the single uplink component carrier, in which the plurality of first channel resources of physical uplink control is configured, being an uplink component carrier in the which HARQ control information is transmitted using a physical uplink control channel, a determination unit determining a second physical uplink control channel resource on the single uplink component carrier for a shared channel transmission of Physical downlink indicated by a detection of the physical downlink control channel in a subframe on a first downlink component carrier, the first downlink component carrier being activated and connected to the only uplink component carrier, the second physical uplink control channel resource being determined on the basis of a physical downlink control channel control channel element, the determining unit determining the first physical uplink control channel resource on the single carrier of uplink component for the transmission of ac. physical downlink shared signal indicated by detecting the physical downlink control channel in the subframe on a second downlink component carrier, the second downlink component carrier being activated and different from the first downlink component carrier, the first physical uplink control channel resource being determined from the plurality of first physical uplink control channel resources that are configured; and a transmission unit which transmits, to the base station apparatus, information bits using one of the determined physical uplink first and second control channel resources, the information bits being used to indicate the control information. from HARQ to the downlink transport block.
[0002]
2. Mobile station apparatus according to claim 1, characterized in that the HARQ control information includes information indicating ACK/NACK.
[0003]
3. Base station apparatus which transmits, to a mobile station apparatus, a downlink transport block using a scaled physical downlink shared channel using a physical downlink control channel, the base station apparatus characterized by fact comprising: a scaling unit that configures a plurality of physical uplink first control channel resources on a single uplink component carrier, the plurality of physical uplink first control channel resources being allocated semi-statically, by the base station apparatus using a parameter transmitted using a radio resource control signal, to the mobile station apparatus, the single uplink component carrier in which the plurality of resources first physical uplink control channel is configured, being an uplink component carrier in q Any HARQ control information is transmitted using a physical uplink control channel, a determination unit that determines a second physical uplink control channel resource on the single uplink component carrier for a shared channel transmission of Scaled physical downlink by using the physical downlink control channel in a subframe on a first downlink component carrier, the first downlink component carrier being activated and connected to the only uplink component carrier, the resource of the second physical uplink control channel being determined on the basis of a control channel element of the physical downlink control channel, the determining unit determining the resource of the first physical uplink control channel on the single component carrier uplink for comparable channel transmission physical downlink plotted by using the physical downlink control channel in the subframe on a second downlink component carrier, the second downlink component carrier being activated and different from the first downlink component carrier, the first physical uplink control channel resource being determined from the plurality of first physical uplink control channel resources that are configured; and a receiving unit which receives, from the mobile station apparatus, information bits using one of the determined physical uplink first and second control channel resources, the information bits being used to indicate the control information. HARQ for the downlink transport block.
[0004]
4. Base station apparatus according to claim 3, characterized in that the HARQ control information includes information indicating ACK/NACK.
[0005]
5. A method of communicating a mobile station apparatus that receives, from a base station apparatus, a downlink transport block using a scaled physical downlink shared channel using a physical downlink control channel, the communication method characterized in that it comprises steps of: configuring a plurality of physical uplink first control channel resources on a single uplink component carrier, the plurality of physical uplink first control channel resources being allocated semi-statically, by the base station apparatus using a parameter received using a radio resource control signal, to the mobile station apparatus, the single uplink component carrier in which the plurality of resources first physical uplink control channel is configured, an uplink component carrier being in which HARQ control information is transmitted using a physical uplink control channel, determining a second physical uplink control channel resource on the single uplink component carrier for a downlink shared channel transmission indicated by a detection of the physical downlink control channel in a subframe on a first downlink component carrier, the first downlink component carrier being activated and connected to the only uplink component carrier, the second physical uplink control channel being determined based on a control channel element of the physical downlink control channel, determining a first physical uplink control channel resource on the single uplink component carrier for the transmission of the indicated physical descendent link shared channel. by detecting the physical downlink control channel in the subframe on a second downlink component carrier, the second downlink component carrier being activated and different from the first downlink component carrier, the first resource physical uplink control channel being determined from the plurality of first physical uplink control channel resources that are configured; and transmitting to the base station apparatus information bits using one of the determined physical uplink first and second control channel resources, the information bits being used to indicate the HARQ control information for the block of downlink transport.
[0006]
6. Communication method according to claim 5, characterized in that the HARQ control information includes information indicating ACK/NACK.
[0007]
7. A method of communicating a base station apparatus that transmits, to a mobile station apparatus, a downlink transport block using a scaled physical downlink shared channel using a physical downlink control channel, the method characterized in that it comprises steps of: configuring a plurality of physical uplink first control channel resources on a single uplink component carrier, the plurality of physical uplink first control channel resources being allocated semi-statically, by the base station apparatus using a parameter transmitted using a radio resource control signal, to the mobile station apparatus, the single uplink component carrier in which the plurality of resources physical uplink control channel is configured, being an uplink component carrier in which i HARQ control information is transmitted using a physical uplink control channel, determining a second physical uplink control channel resource on the single uplink component carrier for a physical downlink shared channel transmission scaled by using the physical downlink control channel in a subframe on a first downlink component carrier, the first downlink component carrier being activated and connected to the only uplink component carrier, the second channel resource of physical uplink control channel being determined based on a physical downlink control channel control channel element, determining a first physical uplink control channel resource on the single uplink component carrier for the staggered physical downlink shared channel transmission when using the can physical downlink control al in the subframe on a second downlink component carrier, the second downlink component carrier being activated and different from the first downlink component carrier, the first link control channel feature physical upstream being determined from the plurality of physical uplink first control channel resources that are configured; and receives, from the mobile station apparatus, information bits using one of the determined physical uplink first and second control channel resources, the information bits used to indicate the HARQ control information for the blocks of downlink transport.
[0008]
8. Communication method according to claim 7, characterized in that the HARQ control information includes information indicating ACK/NACK.

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