MOBILE STATION APPARATUS, COMMUNICATION METHOD, INTEGRATED CIRCUIT, RADIO COMMUNICATION SYSTEM AND C

专利摘要:
MOBILE STATION APPARATUS, COMMUNICATION METHOD, INTEGRATED CIRCUIT, RADIO COMMUNICATION SYSTEM AND CONTROL PROGRAM. The present invention relates to a radio communication system which includes a plurality of mobile station apparatus and a base station apparatus, a physical uplink reference signal and a physical uplink control channel signal are efficiently controlled and the mobile station apparatus properly transmits a signal. The mobile station apparatus includes: a radio resource control unit 403 which adjusts a radio resource of a reference signal for measuring channel quality and a radio resource of a physical uplink control channel; a simultaneous transmission control unit 4051 which, by transmitting the physical uplink control channel signal in a time frame in which the radio resource of the reference signal has been adjusted, controls a signal transmission processing that depends on each radio feature has been set to the same component frequency band or each radio feature has been set to a different component frequency band; and a processing unit of (...).
公开号:BR112012020298B1
申请号:R112012020298-7
申请日:2010-12-16
公开日:2021-07-13
发明作者:Daiichiro Nakashima；Shoichi Suzuki；Wataru Ouchi；Tatsushi Aiba
申请人:Sharp Kabushiki Kaisha；
IPC主号:

专利说明:

Field of Technique
The present invention relates to mobile station apparatus, communication methods, integrated circuits, radio communication systems and control programs capable of efficiently controlling a physical uplink reference signal and an uplink control channel signal 10 physical in a radio communication system that includes a plurality of mobile station apparatus and a base station apparatus, in which the mobile station apparatus can properly transmit the signals. Background of the Invention
In the 3GPP (3rd Generation Partnership Project), the standard of EU-15 TRA (Evolved Universal Terrestrial Radio Access; hereinafter referred to as "EUTRA") is already established, and a study on an access scheme radio (Advanced EUTRA; hereinafter referred to as "A-EUTRA"), which is an evolved EUTRA, has been initiated. <EUTRA SRS>
In E-UTRA, for example, an audible reference signal (SRS) is already specified for a base station apparatus to measure an uplink channel quality. A mobile station apparatus transmits the audible reference signal through the use of a radio resource that is preset by the base station apparatus. In the mobile station apparatus, a radio resource for periodically transmitting the sound reference signal is allocated or a radio resource for transmitting the sound reference signal is allocated only once. The audible reference signal is transmitted only in a periodic subframe (referred to as an SRS subframe) of a physical uplink that is pre-adjusted by a base station apparatus. In addition, the sound reference signal is transmitted using the last SC-FDMA (Single Carrier Frequency Division Multiple Access) symbol of an uplink subframe. <EUTRA PUCCH>
In E-UTRA, for example, a physical uplink control channel (PUCCH) is already specified for a mobile station apparatus to transmit a scheduling request. Scheduling request means that a mobile station apparatus requires a physical uplink shared channel (PUSCH) radio resource allocation from a base station apparatus. When making the scheduling request, a mobile station apparatus transmits a physical uplink control channel signal through the use of a periodic radio resource that is pre-adjusted by a base station apparatus. When not making the scheduling request, a mobile station apparatus does not transmit a signal for the scheduling request even if a radio resource has been allocated.
In E-UTRA, there are two types of physical uplink control channel signal formats that are used to transmit a schedule request (hereinafter referred to as a first format and a second format). The first format is a format, in which a radio resource in a time domain to which an audible reference signal can be allocated, that is, an SC-FDMA symbol to which an audible reference signal can be allocated, is used. for transmitting a programming request, while the second format is a format, in which a radio resource in a time domain to which a sound reference signal can be allocated, i.e., an SC-FDMA symbol in which a signal Sound reference can be allocated, it is not used for transmitting a programming request.
<Simultaneous generation of EUTRA SRS and PUCCH>
In E-UTRA, a mode in which a mobile station apparatus can simultaneously transmit an audible reference signal and a physical uplink control channel signal, and a mode in which a mobile station apparatus cannot transmit a reference signal audible when the mobile station apparatus transmits a physical uplink control channel signal, are switched and used by a base station apparatus. When an audible reference signal and a physical uplink control channel signal are simultaneously transmitted in the same subframe, the second format is used as the format for the physical uplink control channel signal.
More specifically, in the sound reference signal subframe, control information that indicates, such as the format for the physical uplink control channel signal, whether the first format is used or the second format is used is broadcast from an apparatus from base station to mobile station apparatus. When in a sound reference signal subframe, control information indicating that the first format is used as the format of a physical uplink control channel signal is provided by a base station apparatus, a base station apparatus. mobile station transmits a physical uplink control channel signal when using the first format in the audible reference signal subframe and furthermore when a physical uplink control channel signal is transmitted in the audible reference signal subframe in which the radio resource for the sonic reference signal has been allocated, the mobile station apparatus transmits only a physical uplink control channel signal without transmitting the sonic reference signal.
When in a sound reference signal subframe, control information indicating that the second format is used as the format of a physical uplink control channel signal is provided by a base station apparatus, a mobile station apparatus. transmits a physical uplink control channel signal using the second format in the audible reference signal subframe, and in addition, when a physical uplink control channel signal transmitted in the audible reference signal subframe in which the resource radio for the sound reference signal has been allocated, the mobile station apparatus simultaneously transmits the sound reference signal and the physical uplink control channel signal. <Component Carrier Aggregation>
In contrast, A-EUTRA, which supports a wider frequency band than EUTRA and maintains compatibility with EUTRA, is being examined. Therefore, in A-EUTRA, a technique (may also be referred to as spectrum aggregation or carrier aggregation) is being examined, in which a base station apparatus performs communications using a system bandwidth composed of a plurality of bands. frequency band, with the EUTRA frequency band as a unit (a component frequency band) (it should be noted that, the component frequency band can also be referred to as a carrier component or a carrier (see Non-Patent Document 1) In this technique, a base station apparatus communicates with a EUTRA-compatible mobile station apparatus by using both a component frequency band in an uplink and a downlink, respectively, and carries out communications with an A-EUTRA compliant mobile station apparatus by using one or more component frequency bands in an uplink and a downlink, respectively.
Prior Art Documents Non-Patent Document Non-Patent Literature 1: 3GPP TSG RAN1 #53bis, Warsaw, Poland, June 30 and July 4, 2008, R1-082723 "Text proposal for RAN1 TRon LTE-Advanced" Description of the Invention
Problems to be Solved by the Invention Also, in A-EUTRA which uses a plurality of component frequency bands, a mobile station apparatus needs to efficiently control the transmission processing of an audible reference signal and a control channel signal of physical uplink. However, in relation to the control of signal transmission processing of a mobile station apparatus, when an audible reference signal and a physical uplink control channel signal are simultaneously generated in different component frequency bands, no documents refer to this point until the inventor knows at present. In order to improve the efficiency of programming, adaptive modulation and transmit power control using the uplink channel quality in a base station apparatus, it is preferable that the mobile station apparatus can transmit the audible reference signal as much as possible. In contrast, in order to keep the delay required by a mobile station apparatus to complete data transmission small, it is preferable that the mobile station apparatus can reliably transmit the uplink control channel signal that includes a schedule request.
The present invention was made due to the above circumstances, and an object of the present invention is to provide a mobile station apparatus, a communication method, an integrated circuit, a radio communication system and a control program capable of efficiently controlling a physical uplink reference signal and a physical uplink control channel signal in a radio communication system that includes a plurality of mobile station apparatus and a base station apparatus, in the which the mobile station apparatus can properly transmit the signals. Means to Solve Problems
(1) In order to achieve the objective described above, an embodiment of the present invention employs the following configuration. That is, a mobile station apparatus of the present invention is the mobile station apparatus that transmits a signal using one or more component frequency bands that are applied in a radio communication system that includes a plurality of mobile station apparatus. and a base station apparatus which transmits/receives a signal to/from the plurality of mobile station apparatus and each of which has a predetermined frequency bandwidth, and the mobile station apparatus includes: a control unit a radio resource that adjusts a radio resource of a reference signal to measure channel quality and a radio resource of a physical uplink control channel; a simultaneous transmission control unit which, by transmitting a physical uplink control channel signal in a time frame in which the radio resource of the reference signal has been set, controls a signal transmission processing which depends on whether each radio feature has been tuned to the same component frequency band or each radio resource has been tuned to a different component frequency band; and a transmission processing unit which transmits the reference signal and/or physical uplink control channel signal on the basis of the simultaneous transmission control unit control. In this way, when transmitting a physical uplink control channel signal in a time frame in which the radio resource of a reference signal has been set, the signal transmission processing is controlled depending on whether each radio resource has been set. set in a component frequency band or each radio resource has been set in a different component frequency band and thus the physical uplink control information and the reference signal can be efficiently transmitted
(2) Furthermore, in the mobile station apparatus of an embodiment of the present invention, the simulcast control unit controls the transmission processing according to the format of a physical uplink control channel signal. In this way, transmission processing is controlled according to the format of a physical uplink control channel signal, and in this way, proper transmission processing control for each format can be performed and the uplink control information and the reference signal can be efficiently transmitted.
(3) Furthermore, in the mobile station apparatus of an embodiment of the present invention, the format of a physical uplink control channel signal is of a first format, in which a radio resource in a time domain, in which the radio resource of the reference signal can be allocated, is used, and a second format, in which a radio resource in a time domain, in which the radio resource of the reference signal can be allocated, is not used. In this way, the format of a physical uplink control channel signal is of a first format and a second format, and thus proper transmission processing control for each format can be performed and the uplink control information and the reference signal can be efficiently transmitted.
(4) Furthermore, in the mobile station apparatus of an embodiment of the present invention, the simultaneous transmission control unit, when the format of a physical uplink control channel signal is the first format and the radio resources of the signal reference and the physical uplink control channel have been set in the same component frequency band through the radio resource control unit, performs the control in order to transmit the physical uplink control channel signal without transmitting the signal of reference, while when the format of a physical uplink control channel signal is the first format and the radio resources of the reference signal and the physical uplink control channel have been set in a different component frequency band, respectively, through the radio resource control unit, the simulcast control unit performs the control in order to simultaneously transmit the reference signal. ance and the physical uplink control channel signal. In this way, in the case where the format of a physical uplink control channel signal is the first format, a mobile station apparatus, when the radio resources of a reference signal and a physical uplink control channel signal have been set in the same uplink component frequency band, performs the control in order to transmit only the physical uplink control channel signal without transmitting the reference signal. Therefore, an orthogonal sequence that has the same sequence length as that of a physical uplink control channel with respect to a different mobile station apparatus, in which a radio resource in the same frequency domain as this control channel of physical uplink is used, is used appropriately, and thus orthogonalization between physical uplink control channel signals can be performed reliably. Furthermore, when the radio resources of a reference signal and a physical uplink control channel signal have been adjusted in a different uplink component frequency band, respectively, the mobile station apparatus performs the control in order to simultaneously transmit the reference signal and the physical uplink control channel signal. Therefore, the base station apparatus can reliably obtain orthogonalization between the signals of the physical uplink control channels with respect to different mobile station apparatus, where a radio resource in the same frequency domain as this channel The physical uplink control device is used and also can measure the uplink channel quality of an uplink component frequency band on which the reference signal was transmitted. Therefore, a mobile station apparatus can reliably transmit a scheduling request to a base station apparatus and maintain the delay required to complete the transmission of small data, while a base station apparatus can improve scheduling efficiency, adaptive modulation and transmit power control when using measured uplink channel quality.
(5) Furthermore, in the mobile station apparatus of an embodiment of the present invention, the simultaneous transmission control unit, when the format of a physical uplink control channel signal is the second format and the radio resources of a reference signal and a physical uplink control channel are set in the same component frequency band by the radio resource control unit, performs the control in order to simultaneously transmit the reference signal and the uplink control channel signal physicist. In contrast, when the physical uplink control channel signal format is the second format and the radio resources of the reference signal and the physical uplink control channel have been set to a different component frequency band, respectively, By the radio resource control unit, the simulcast control unit performs the control in order to transmit the reference signal and the physical uplink control channel signal simultaneously. In this way, when the format of a physical uplink control channel signal is the second format, the mobile station apparatus, when the radio resources of a reference signal and the physical uplink control channel signal have been adjusted in the same uplink component frequency band, performs the control in order to transmit the reference signal and the physical uplink control channel signal simultaneously. Therefore, the mobile station apparatus can reliably obtain orthogonalization between the signals of the physical uplink control channels with respect to different mobile station apparatus, where a radio resource in the same frequency domain as this channel. physical uplink control is used and also can measure the uplink channel quality of an uplink component frequency band in which the reference signal was transmitted. Furthermore, when the radio resources of a reference signal and a physical uplink control channel signal have been adjusted in a different uplink component frequency band, respectively, the mobile station apparatus performs the control in order to simultaneously transmit the reference signal and the physical uplink control channel signal. Therefore, the mobile station apparatus can reliably obtain orthogonalization between the physical uplink control channel signals with respect to different mobile station apparatus, where a radio resource in the same frequency domain as this control channel. physical uplink is used, and it can also measure the uplink channel quality of an uplink component frequency band in which the reference signal was transmitted. Therefore, the mobile station apparatus can reliably transmit a scheduling request to a base station apparatus and maintain the delay required to complete the transmission of small data, while the base station apparatus can improve scheduling efficiency, adaptive modulation and transmit power control using measured uplink channel quality.
(6) Furthermore, in the mobile station apparatus of an embodiment of the present invention, the simultaneous transmission control unit, when the format of a physical uplink control channel signal is the first format and the radio resources of the signal reference and physical uplink control channel have been set in a different component frequency band, respectively, by the radio resource control unit, performs the control in order to transmit the physical uplink control channel signal without transmit the reference signal. In contrast, when the format of a physical uplink control channel signal is the second format and the radio resources of the reference signal and the physical uplink control channel have been set to a different component frequency band, respectively , by the radio resource control unit, the simulcast control unit performs the control in order to transmit the reference signal and the physical uplink control channel signal simultaneously. In this way, when the format of a physical uplink control channel signal is the first format and the radio resources of the reference signal and the physical uplink control channel signal have been adjusted in a component frequency band of different uplink, respectively, simulcast control unit performs the control in order to transmit the physical uplink control channel signal without transmitting the reference signal. In contrast, when the format of a physical uplink control channel signal is the second format and the radio resources of the reference signal and the physical uplink control channel signal have been adjusted in a component frequency band of different uplink, respectively, the simulcast control unit performs the control in order to transmit the reference signal and the physical uplink control channel signal simultaneously. Therefore, a physical uplink control channel signal and a reference signal can be properly transmitted in consideration of restrictions on transmit power. A mobile station apparatus with the small remaining transmit power capable of transmitting, in which simultaneous transmission of signals with different uplink component frequency bands is basically prohibited by a base station apparatus when the first format is used for the physical uplink control channel signal and the radio resources of the reference signal and the physical uplink control channel signal have been set in a different uplink component frequency band, respectively, transmit only the signal uplink control channel without transmitting the reference signal due to transmission power restriction. In contrast, when the second format is used for the physical uplink control channel signal and the radio resources of the reference signal and the physical uplink control channel signal have been adjusted in a component frequency band of different uplink, respectively, this mobile station apparatus can simultaneously transmit the reference signal and the physical uplink control channel signal in the same uplink subframe without worrying about the restrictions on the transmit power. The radio resources of a reference signal and a physical uplink control channel signal of a different uplink component frequency band are set in different SC-FDMA symbols, respectively, and a mobile station apparatus does not necessarily transmit from Simultaneously, signals with different uplink component frequency bands in the SC-FDMA symbol unit, and the required transmit powers for the respective reference signal and the physical uplink control channel signal are not simultaneously generated. Therefore, a mobile station apparatus with the small remaining small transmit power capable of transmitting, when the format of a physical uplink control channel signal is the second format, can simultaneously transmit the reference signal and the signal. physical uplink control channel whose radio resources are set in a different uplink component frequency band, respectively, in the same uplink subframe.
(7) Furthermore, a communication method of an embodiment of the present invention is the communication method that transmits a signal using one or more component frequency bands that are applied in a radio communication system that includes a plurality of mobile station apparatus and a base station apparatus that transmit/receive a signal to/from the plurality of mobile station apparatus and each of which has a predetermined frequency bandwidth, wherein the method includes at least the steps of: adjusting a radio resource of a reference signal to measure channel quality and a radio resource of a physical uplink control channel in the mobile station apparatus; control a signal transmission processing that depends on whether each radio resource has been tuned in the same component frequency band or each radio resource has been tuned in a different band, by transmitting the physical uplink control channel signal in a frame of time at which the radio feature of the reference signal was set; and transmitting the reference signal and/or physical uplink control channel signal based on controlling the signal transmission processing. In this way, the signal transmission processing is controlled depending on whether each radio resource has been tuned to the same component frequency band or each radio resource has been tuned to a different band, when transmitting the physical uplink control channel signal in a time frame in which the radio resource of the reference signal has been adjusted, and thus the uplink control information and the reference signal can be efficiently transmitted.
(8) Furthermore, an integrated circuit of an embodiment of the present invention is an integrated circuit that causes a mobile station apparatus to perform a plurality of functions by being mounted in the mobile station apparatus, the integrated circuit that causes the mobile station apparatus performs a series of functions including the functions of: transmitting a signal to a base station apparatus using one or more component frequency bands each having a predetermined frequency bandwidth; adjusting a radio resource of a reference signal to measure channel quality and a radio resource of a physical uplink control channel; control a signal transmission processing that depends on whether each radio resource has been tuned to the same component frequency band or each radio resource has been tuned to a different band, by transmitting the physical uplink control channel signal in one frame the time at which the radio feature of the reference signal was set; and transmitting the reference signal and/or physical uplink control channel signal based on controlling the signal transmission processing. In this way, when transmitting a physical uplink control channel signal in a time frame in which the radio resource of the reference signal has been set, the signal transmission processing is controlled depending on whether each radio resource has been set. in the same component frequency band or each radio resource has been set in a different component frequency band and thus the uplink control information and the reference signal can be efficiently transmitted.
(9) Furthermore, a radio communication system of an embodiment of the present invention is the radio communication system that includes a plurality of mobile station apparatus and a base station apparatus that transmits/receives a signal to/from from the plurality of mobile station apparatus using one or more component frequency bands each having a predetermined frequency bandwidth, in which the base station apparatus includes a receive processing unit that receives a signal. transmitted from the mobile station apparatus, wherein the mobile station apparatus includes: a radio resource control unit that adjusts a radio resource of a reference signal to measure channel quality and a radio resource of a physical uplink control channel; a simultaneous transmission control unit which, by transmitting the physical uplink control channel signal in a time frame in which the radio resource of the reference signal has been set, controls a signal transmission processing that depends on each resource. radio was set to the same component frequency band or each radio resource was set to a different component frequency band; and a transmission processing unit which transmits the reference signal and/or physical uplink control channel signal on the basis of the simultaneous transmission control unit control. In this way, when transmitting a physical uplink control channel signal in a time frame in which the radio resource of a reference signal has been adjusted, the signal transmission processing is controlled depending on whether each radio resource has been set. set to the same component frequency band, or each radio resource has been set to a different component frequency band, and thus the uplink control information and the reference signal can be efficiently transmitted.
(10) Furthermore, a control program of an embodiment of the present invention is the control program of a mobile station apparatus that transmits a signal using one or more component frequency bands that are applied in a communication system. a radio which includes a plurality of mobile station apparatus and a base station apparatus which transmits/receives a signal to/from the plurality of mobile station apparatus and each of which has a predetermined frequency bandwidth, and the control program converts a series of processings into commands in order to allow a computer to read and execute them, which series of processing include processing: adjusting a radio feature of a reference signal to measure the quality of channel and a radio resource of a physical uplink control channel; control a signal transmission processing that depends on whether each radio resource has been tuned in the same component frequency band or each radio resource has been tuned in a different band, by transmitting a physical uplink control channel signal in a frame of time at which the radio feature of the reference signal was set; and transmitting the reference signal and/or physical uplink control channel signal based on control of a signal transmission processing. In this way, when transmitting the physical uplink control channel signal s in a time frame in which the radio resource of the reference signal s has been set, the signal transmission processing is controlled depending on whether each radio resource has been set to the same component frequency band, or each radio resource has been set to a different component frequency band, and thus the uplink control information and the reference signal can be efficiently transmitted. Advantageous Effects of the Invention
According to the present invention, the mobile station apparatus can properly transmit a physical uplink reference signal and a physical uplink control channel signal even when the radio resources of the physical uplink reference signal and the channel signal uplink control switches are set in the same uplink subframe. In this way, the mobile station apparatus can reliably transmit the physical uplink control channel signal to a base station apparatus and maintain the delay required to complete small data transmission, while the base station apparatus can improve programming efficiency, adaptive modulation, and transmit power control using measured uplink channel quality. Brief Description of Drawings
Figure 1 is a schematic block diagram showing the configuration of a base station apparatus 3, in accordance with an embodiment of the present invention.
Fig. 2 is a schematic block diagram showing the configuration of a transmission processing unit 107 of the base station apparatus 3, according to the embodiment of the present invention.
Figure 3 is a schematic block diagram showing the configuration of a receive processing unit 101 of base station apparatus 3, in accordance with the embodiment of the present invention.
Figure 4 is a schematic block diagram showing the configuration of a mobile station apparatus 5, in accordance with the embodiment of the present invention.
Fig. 5 is a schematic block diagram showing the configuration of a receive processing unit 401 of the mobile station apparatus 5, according to the embodiment of the present invention.
Fig. 6 is a schematic block diagram showing the configuration of a transmission processing unit 407 of the mobile station apparatus 5, according to the embodiment of the present invention.
Fig. 7 is a diagram showing an example of a combination of radio resources set for an audible reference signal and a physical uplink control channel signal in the embodiment of the present invention.
Fig. 8 is a flowchart showing an example of transmission processing when the radio resources of an audible reference signal and a physical uplink control channel signal of mobile station apparatus 5 have been set in the same uplink subframe , according to the modality of the Invention.
Fig. 9 is a diagram showing an example of a combination of radio resources set for an audible reference signal and a physical uplink control channel signal for transmitting an acknowledgment response in the embodiment of the present invention.
Figure 10 is a diagram illustrating an overall image overview of a radio communication system in accordance with the embodiment of the present invention.
Fig. 11 is a diagram showing the schematic configuration of a radio frame of a downlink (referred to as a downlink radio frame) from the base station apparatus 3 to the mobile station apparatus 5, in accordance with embodiment of the present invention.
Fig. 12 is a diagram showing the schematic configuration of an uplink radio frame (referred to as an uplink radio frame) from the base station apparatus 3 to the mobile station apparatus 5, according to the modality of the present invention.
Fig. 13 is a table showing the orthogonal sequences multiplied on a physical uplink control channel that is used to transmit a schedule request, in the embodiment of the present invention. Best Way to Carry Out the Invention
Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings. First, in figure 10 to figure 13, the whole image of a radio communication system and the configuration of a radio frame, according to the modality, are described. Next, in figure 1 to figure 6, the configuration of the radio communication system, according to the modality will be described. Next, in figure 7 and in figure 8, the operation processing of the radio communication system, according to the modality will be described. full clinging of the radio communication system>
Figure 10 is a diagram illustrating an overview of a total image of the radio communication system, in accordance with the embodiment of the present invention. In a radio communication system 1 shown by Fig. 10, a base station apparatus 3 and a plurality of mobile station apparatus 5A, 5B and 5C carry out radio communications with each other. Furthermore, Figure 10 shows that a downlink, which is a communication direction, from the base station apparatus 3 to the mobile station apparatuses 5A, 5B and 5C includes a downlink pilot channel, a control channel. physical downlink (also referred to as a PDCCH), a physical downlink shared channel (also referred to as a PDSCH). Furthermore, Figure 10 shows that an uplink, which is a communication direction, from mobile station apparatus 5A, 5B and 5C to base station apparatus 3 includes a shared physical uplink channel (also referred to as the PUSCH), an uplink pilot channel and a physical uplink control channel (also referred to as a PUCCH). Furthermore, an area that the base station apparatus 3 manages is referred to as a cell. Hereinafter, in the embodiment, mobile station apparatus 5A, 5B and 5C are referred to as a mobile station apparatus 5 and will be described. <Downlink radio frame setup>
Fig. 11 is a diagram showing the schematic radio frame configuration of a downlink (referred to as a downlink radio frame) from the base station apparatus 3 to the mobile station apparatus 5, according to the modality of the present invention. In Figure 11, the horizontal axis represents a frequency domain and the vertical axis represents a time domain. The downlink radio frame is a radio resource allocation unit, or similar, and is composed of a pair of resource blocks (referred to as a pair of downlink resource blocks) that include a frequency band and partition of predetermined times of a downlink. A pair of downlink resource blocks is composed of two contiguous resource blocks in the time domain of a downlink (referred to as downlink resource blocks).
Furthermore, in Fig. 11, a downlink resource block is composed of 12 subcarriers in the frequency domain of a downlink (referred to as downlink subcarriers) and is composed of seven OFDM symbols in the time domain. A system bandwidth of a downlink (referred to as a downlink system bandwidth) is the communication bandwidth of a downlink of the base station apparatus 3, and is composed of a plurality of frequency bandwidths. components of a downlink (referred to as downlink component frequency bandwidths). In radio communication system 1, the component frequency band of a downlink (referred to as a downlink component frequency band) is the bandwidth of a predetermined frequency bandwidth, and the frequency bandwidth downlink component frequency is the frequency bandwidth of a downlink component frequency band. For example, the system bandwidth of a downlink (referred to as a downlink system bandwidth) with a 40 MHz bandwidth is composed of two downlink component frequency bands with one bandwidth 20 MHz.
It should be noted that, in a downlink component frequency band, a plurality of downlink resource blocks are arranged according to the downlink component frequency bandwidth. For example, a downlink component frequency band with a bandwidth of 20 MHz is composed of 100 downlink resource blocks. Also, for example, the downlink component frequency bandwidth is the frequency bandwidth that the EUTRA 5 compatible mobile station apparatus can use for communications, and the downlink system bandwidth is the width frequency band that the A-EUTRA 5 compatible mobile station apparatus can use for communications.
Furthermore, in the time domain shown by Fig. 11, there is a partition (referred to as a downlink partition) composed of seven OFDM symbols, a subframe (referred to as a downlink subframe) composed of two downlink partitions, and a frame of downlink radio consisting of ten downlink subframes. It should be noted that a unit composed of a downlink subcarrier and an OFDM symbol is referred to as a resource element (a downlink resource element). In each downlink subframe, at least one physical downlink shared channel used for transmitting information data and one physical downlink control channel used for transmitting control data are arranged. In Fig. 11, the physical downlink control channel is composed of the first to third OFDM symbols of a downlink subframe, and the physical downlink shared channel is composed of the fourth to fourteenth OFDM symbols of a downlink subframe.
Although the illustration is omitted in Figure 11, a downlink pilot channel reference signal (referred to as a downlink reference signal) is used in estimating channel variation in a shared physical downlink channel and a control channel. physical downlink is distributed and arranged in a plurality of downlink resource elements. Here, the downlink reference signal is a known signal, which is used for a downlink pilot channel, in radio communication system 1.
It should be noted that a physical downlink shared channel is composed of one or more downlink resource blocks within the same downlink component frequency band, and a physical downlink control channel is composed of a plurality of resource elements of downlink within the same frequency band as the downlink component. Within a downlink system bandwidth, a plurality of physical downlink shared channels and a plurality of physical downlink control channels are disposed. The base station apparatus 3 may arrange a physical downlink control channel and a physical downlink shared channel within the same downlink component frequency band in the same downlink subframe with respect to a mobile station apparatus compatible with EUTRA 5 , and can arrange a plurality of physical downlink control channels and a plurality of physical downlink shared channels in the same downlink subframe with respect to an A-EUTRA 5 compatible mobile station apparatus. base station 3 can arrange a plurality of physical downlink control channels within the same downlink component frequency band in the same downlink subframe, with respect to an A-EUTRA 5 compatible mobile station apparatus. of base station 3 cannot have a plurality of physical downlink shared channels within the same downlink component frequency band, however, it can. r each physical downlink shared channel in a different downlink component frequency band.
On the physical downlink control channel, a signal generated from control data such as a mobile station identifier, radio resource allocation information of a shared physical downlink channel, radio resource allocation information of a shared physical uplink channel, information related to multiple antennas, a modulation scheme, a coding rate and a retransmission parameter is arranged. It should be noted that a physical downlink control channel only includes the radio resource allocation information of a physical downlink shared channel or the radio resource allocation information of a physical uplink shared channel, and does not include the radio resource allocation information of a plurality of physical downlink shared channels or the radio resource allocation information of a plurality of physical uplink shared channels. <Uplink radio frame setup>
Fig. 12 is a diagram showing the schematic configuration of an uplink radio frame (referred to as an uplink radio frame) from the mobile station apparatus 5 to the base station apparatus 3, according to the modality of the present invention. In Figure 12, the horizontal axis represents a frequency domain and the vertical axis represents a time domain. The uplink radio frame is a unit of a radio resource allocation, or similar, and is composed of a pair of resource blocks (referred to as an uplink resource block pair) that includes a predetermined frequency band. and the time width of an uplink. An uplink resource block pair is composed of two contiguous resource blocks in the time domain of an uplink (referred to as uplink resource blocks).
Furthermore, in Fig. 12, an uplink resource block is composed of 12 subcarriers in the frequency domain of an uplink (referred to as uplink subcarriers) and is composed of seven SC-FDMA symbols in the time domain. A system bandwidth of an uplink (referred to as an uplink system bandwidth) is the communication bandwidth of an uplink of the base station apparatus 3, and is composed of a plurality of bandwidths of component frequency of an uplink (referred to as uplink component frequency bandwidths). In radio communication system 1, the component frequency band of an uplink (referred to as an uplink component frequency band) is the bandwidth of a predetermined frequency bandwidth, and the frequency bandwidth uplink component frequency is the frequency bandwidth of an uplink component frequency band. For example, a system bandwidth of an uplink (referred to as an uplink system bandwidth) with a bandwidth of 40 MHz is composed of two uplink component frequency bands with a bandwidth of 20 MHz.
It should be noted that, in an uplink component frequency band, a plurality of uplink resource blocks are arranged according to an uplink component frequency bandwidth. For example, an uplink component frequency band with a bandwidth of 20 MHz is composed of 100 uplink resource blocks. Also, for example, the uplink component frequency bandwidth is the frequency bandwidth that the EUTRA 5 compatible mobile station apparatus can use for communications, and the uplink system bandwidth is the width frequency band that the A-EUTRA 5 compatible mobile station apparatus can use for communications.
In addition, in the time domain shown by Figure 12, there is a partition (referred to as an uplink partition) composed of seven SC-FDMA symbols, a subframe (referred to as an uplink subframe) composed of two uplink partitions, and a uplink radio frame composed of ten uplink subframes. It should be noted that a unit composed of an uplink subcarrier and an SC-FDMA symbol is referred to as a resource element (referred to as an uplink resource element).
In each uplink subframe, at least one physical uplink shared channel used for transmitting information data and one physical uplink control channel used for transmitting control data are arranged. The physical uplink control channel is used to transmit control data that includes a program request, and a channel quality indicator against a downlink or an acknowledgment response against a shared channel. physical downlink side. The present invention is directed to the physical uplink control channel used to transmit a scheduling request.
There are two types of formats (referred to hereinafter as a first format and a second format) of a physical uplink control channel signal that are used to transmit a scheduling request. As shown in Figure 12, the first format is a format in which a radio resource in the time domain to which an audible reference signal can be allocated, i.e. an SC-FDMA symbol in which an audible reference signal can be allocated, is used, while the second format is a format, in which a radio resource in the time domain to which an audible reference signal can be allocated, i.e. an SC-FDMA symbol in which an audible reference signal can be allocated, is not used.
For the first format, the first through seventh SC-FDMA symbols of the first uplink partition and the first through seventh SC-FDMA symbols of the second uplink partition of the uplink subframe are used. For the second format, the first to seventh SC-FDMA symbols of the first uplink partition and the first to sixth SC-FDMA symbols of the second uplink partition of the uplink subframe are used. For the first format, the seventh SC-FDMA symbol of the second uplink partition of the uplink subframe is used, while for the second format, the seventh SC-FDMA symbol of the second uplink partition of the uplink subframe is not used. For the physical uplink control channel used to transmit a scheduling request, an orthogonal sequence is multiplied by an SC-FDMA symbol in an uplink partition unit in the time domain.
Figure 13 is a table showing orthogonal sequences multiplied by a physical uplink control channel that is used to transmit a schedule request in the embodiment of the present invention. Two types of orthogonal sequences that have a different sequence length are used, and three orthogonal sequences are used for each sequence length. With respect to a physical uplink control channel of the first format, any one of the orthogonal sequences of sequence length 4 in the first uplink partition and the second uplink partition of the uplink subframe is used, and each symbol of this sequence is multiplied by the first , second, sixth, and seventh SC-FDMA symbols of each uplink partition.
For the second format physical uplink control channel, any one of the orthogonal sequences of sequence length 4 in the first uplink partition of the uplink subframe is used, and each symbol of the orthogonal sequence is multiplied by the first, second, sixth, and seventh SC-FDMA symbols of the first uplink partition, and any one of the orthogonal sequences of sequence length 3 in the second uplink partition of the uplink subframe is used, and each symbol of the orthogonal sequence is multiplied by the first, second, and sixth symbols SC-FDMA of the second uplink partition. A plurality of physical uplink control channels are arranged in the same uplink resource block, and each physical uplink control channel arranged in the same uplink resource block is orthogonally multiplexed by the orthogonal sequence. Furthermore, in order to obtain proper orthogonal multiplexing, an orthogonal sequence of the same sequence length is used in at least one physical uplink control channel arranged in the same uplink resource block.
It should be noted that a physical uplink shared channel is composed of one or more uplink resource blocks within the same uplink component frequency band, and a physical uplink control channel is composed of two uplink resource blocks which have a symmetrical relationship to the frequency domain within the same uplink component frequency band, each of the two uplink resource blocks is located in a different uplink partition. For example, in Figure 12, within an uplink subframe within an uplink component frequency band that has the lowest frequency, a pair of uplink resource blocks used in a physical uplink control channel is composed of an uplink resource block with the lowest frequency of the first uplink partition and an uplink resource block with the highest frequency of the second uplink partition.
A plurality of physical uplink shared channels and a plurality of physical uplink control channels are arranged within an uplink system bandwidth. The base station apparatus 3 can allocate a radio resource of a physical uplink control channel and a radio resource of a shared physical uplink channel, respectively, within the same uplink component frequency band in the same subframe of uplink, with respect to an EUTRA 5 compatible mobile station apparatus. In addition, the base station apparatus 3 can allocate a radio resource of a physical uplink shared channel for each uplink component frequency band in the same subframe of uplink, with respect to an A-EUTRA 5 compatible mobile station apparatus. It should be noted that, the base station apparatus 3 cannot allocate the radio resources of a plurality of physical uplink shared channels within it. uplink component frequency band in the same uplink subframe, with respect to an A-EUTRA 5 compliant mobile station apparatus, but can allocate the radio resource of each physical uplink shared channel co in a different uplink component frequency band.
The uplink pilot channel is composed of an uplink pilot channel for demodulation used in estimating the channel variation in a physical uplink control channel and a shared physical uplink channel and an uplink pilot channel for reference used in scheduling. frequency of a physical uplink shared channel of the base station apparatus 3. It should be noted that the uplink pilot channel for reference is also used for measuring a synchronization deviation between the base station apparatus 3 and the base station apparatus. mobile station 5.
A reference signal (referred to as an uplink reference signal) is arranged in an SC-FDMA symbol which differs between a case where the uplink pilot channel for demodulation is arranged within the same uplink resource block as a shared channel of physical uplink and a case where the uplink pilot channel for demodulation is arranged within the same uplink resource block as a physical uplink control channel. Here, the uplink reference signal is used for an uplink pilot channel and is a known signal in radio communication system 1.
When the uplink pilot channel for demodulation is arranged within the same uplink resource block as a physical uplink shared channel, an uplink reference signal is arranged at the fourth SC-FDMA symbol within an uplink partition (the signal of Pilot channel uplink reference for demodulation is referred to as a DM RS demodulation reference signal). When the uplink pilot channel for demodulation is arranged within the same uplink resource block as a physical uplink control channel that includes the control data composed of a schedule request, the demodulation reference signal is arranged in the third, fourth and fifth SC-FDMA symbols within the uplink partition. When the demodulation reference signal is arranged within the same uplink resource block as the physical uplink control channel which includes the control data composed of acknowledgment response, the demodulation reference signal is arranged in the third, fourth and fifth SC-FDMA symbols within the uplink partition. When arranged within the same uplink resource block as the physical uplink control channel which includes the control data composed of a channel quality indicator, the demodulation reference signal is arranged in the second and sixth SC-FDMA symbols inside an uplink partition.
The uplink pilot channel for reference is arranged within the uplink resource block that the base station apparatus 3 has determined, and an uplink reference signal (the uplink reference signal of the uplink pilot channel for reference is referred to as the SRS sound reference signal) is arranged at the fourteenth SC-FDMA symbol (the seventh SC-FDMA symbol of the second uplink partition of the uplink subframe) within the uplink subframe. The sound reference signal is arranged only in the uplink subframe (referred to as the sound reference subframe: SRS subframe) with a cycle that the base station apparatus 3 has determined within a cell. The base station apparatus 3 allocates a cycle in which the sound reference signal is transmitted to each mobile station apparatus 5, and allocates an uplink resource block in the sound reference signal subframe.
Although this figure shows a case where a physical uplink control channel is arranged in the uplink resource block at the end of each uplink component frequency band, an uplink resource block such as the second or third uplink resource block from the edge of an uplink component frequency band, can be used for physical uplink control channel.
It should be noted that, in the radio communication system 1, according to the embodiment of the present invention, the OFDM scheme is applied in the downlink and the OFDM scheme NxDFT broadcast is applied in the uplink. Here, the NxDFT broadcast OFDM scheme is a scheme, in which the transmission/reception of a signal is performed using the DFT broadcast OFDM scheme in one unit of the uplink component frequency band, and it is a scheme, in the which communications are performed using a plurality of processing units related to DFT broadcast OFDM transmission/reception in an uplink subframe of radio communication system 1 using a plurality of uplink component frequency bands. (First modality) <Full configuration of base station apparatus 3>
Hereinafter, the configuration of the base station apparatus 3, according to the embodiment, will be described using Figure 1, Figure 2 and Figure 3. Figure 1 is a schematic block diagram which shows the configuration of the base station apparatus 3, according to the embodiment of the present invention. As shown in Figure 1, the base station apparatus 3 includes a receive processing unit 101, a radio resource control unit 103, a control unit 105 and a transmission processing unit 107.
The receive processing unit 101, according to an instruction from the control unit 105, demodulates the signals received from a physical uplink control channel and a physical uplink shared channel, which are received from the mobile station apparatus 5 by means of a receive antenna 109, which uses the pilot channel uplink reference signal for demodulation and decodes the resulting signals to extract control data and information data. In addition, the receive processing unit 101 measures the channel quality of one or more uplink resource blocks using the sound reference signal received from the mobile station apparatus 5. The receive processing unit 101 performs the control data extraction processing or channel quality measurement processing, in relation to an uplink subframe and an uplink resource block, wherein the base station apparatus 3 has allocated the radio resource of a control channel of physical uplink or an audible reference signal in the mobile station apparatus 5. The receiving processing unit 101 is instructed from the control unit 105 which type of processing is performed in which uplink subframe and which resource block. uplink. The receiving processing unit 101 outputs the extracted control data and the measured channel quality to the control unit 105, and outputs the information data to a higher layer. Details of the receiving processing unit 101 will be described later.
The radio resource control unit 103 adjusts a radio resource allocation (a transmission period, an uplink resource block) of an audible reference signal, the cycle and transmission power of a reference signal subframe. audible, a radio resource allocation of a physical downlink control channel, a radio resource allocation of a physical uplink control channel, a radio resource allocation of a shared physical downlink channel, a resource allocation of a physical uplink shared channel, the modulation schemes and the coding rates of several channels, and the like, of the respective mobile station apparatus 5. In addition, the radio resource control unit 103, based on the control data which is obtained using a physical uplink control channel in the receive processing unit 101 and is inputted through the control unit 105, adjusts the radio resource allocation, and the like, p for the physical uplink shared channel. For example, the radio resource control unit 103, when a scheduling request is entered as the control data, allocates the radio resource of a physical uplink shared channel in the mobile station apparatus 5 which transmitted the scheduling request. . In addition, the radio resource control unit 103 determines whether the first format is used or the second format is used to format a physical uplink control channel signal of a sound reference signal subframe of each band. uplink component frequency.
The radio resource control unit 103 adjusts the radio resource allocation of a physical uplink shared channel, the transmit power value, and the like, based on the uplink channel quality entered through the control unit 105. For example, the radio resource control unit 103 allocates the radio resource to a physical uplink shared channel in an uplink resource block which has a good channel quality with respect to the mobile station apparatus 5, or adjusts the transmit power value based on channel quality, so that a received signal can obtain a predetermined error rate. In addition, the radio resource control unit 103 controls the simultaneous transmission of the signals with different uplink component frequency bands based on information related to the remaining transmit power capable of transmission, notification of this to the mobile station apparatus 5 provides. When the remaining transmit power capable of transmitting is large, simultaneous transmission of signals with different uplink component frequency bands is allowed for the mobile station apparatus 5, while when the remaining transmit power capable of transmitting is small, the simultaneous transmission of the signals with different uplink component frequency bands is prohibited for the mobile station apparatus 5. control formations for the control unit 105. Examples of the control information include: control information indicating whether the first format is used or the second format is used to format a physical uplink control channel signal into an audible reference signal subframe, control information indicative of radio resource allocation of an audible reference signal, control information indicative of the radio resource allocation of a physical uplink control channel, indicative control information ives of the cycle of an audible reference signal subframe, and control information indicating whether simultaneous transmission of signals with different uplink component frequency bands is permitted or prohibited.
The control unit 105, based on the control information entered from the radio resource control unit 103, performs the control of the radio resource allocation, modulation scheme and coding rate of a physical downlink shared channel and a physical downlink control channel with respect to the transmission processing unit 107. In addition, the control unit 105, based on the control information, generates the control data, which is transmitted using a control channel. physical downlink, and outputs them to the transmission processing unit 107. In addition, the control unit 105 performs the control in order to transmit control information indicative of the radio resource allocation of an audible reference signal, as control information indicative of the cycle of an audible reference signal subframe, control information indicative of the radio resource allocation of a physical uplink control channel sico, the control information indicating whether the first format is used or the second format is used for the physical uplink control channel signal format of the sound reference signal subframe of each uplink component frequency band, and similar to the mobile station apparatus 5 via the transmission processing unit 107 using a shared physical downlink channel. entered from the radio resource control unit 103, performs the control of the radio resource allocation, modulation scheme and coding rate of a physical uplink shared channel and a physical uplink control channel with respect to the unit of reception processing 101. In addition, the control unit 105, based on the control information entered from the radio resource control unit 103, performs channel quality measurement control using an audible reference signal. with respect to the receive processing unit 101. In addition, the control unit 105 outputs the control data, which is transmitted by the mobile station apparatus 5 using a physical uplink control channel and is inputted through the processing unit. 101, to the radio resource control unit 103.
The transmission processing unit 107, based on the control signal inputted from the control unit 105, generates a signal that will be transmitted using a physical downlink control channel and a shared physical downlink channel, and transmits the same through of the transmit antenna 111. The transmit processing unit 107 transmits the control information indicative of the radio resource allocation of an audible reference signal, the control information being input from the radio resource control unit 103, control information indicative of the cycle of an audible reference signal subframe, control information indicative of radio resource allocation of a physical uplink control channel, control information indicating whether the first format is used or the second format is used for the physical uplink control channel signal format of the sound reference signal subframe of each band. the uplink component frequency, and information data entered from a higher layer to the mobile station apparatus 5 using a shared physical downlink channel, and transmits the entered control data from the control unit 105 to mobile station apparatus 5 using a physical downlink control channel. It should be noted that, to simplify the description, hereafter in this document, the information data is assumed to include various types of control information. Details of the transmission processing unit 107 will be described later. <Configuration of transmission processing unit 107 of base station apparatus 3>
Hereinafter, the details of the transmission processing unit 107 of the base station apparatus 3 will be described. Fig. 2 is a schematic block diagram showing the configuration of the transmission processing unit 107 of the base station apparatus 3, in accordance with the embodiment of the present invention. As shown in Figure 2, the transmission processing unit 107 includes a plurality of physical downlink shared channel processing units 201-1 to 201-M (hereinafter, the downlink shared channel processing units physical downlink 201-1 to 201-M are collectively denoted as a physical downlink shared channel processing unit 201), a plurality of physical downlink control channel processing units 203-1 to 203-M (hereinafter in the In this document, the physical downlink control channel processing units 203-1 to 203-M are collectively denoted as a physical downlink control channel processing unit 203), a downlink pilot channel processing unit 205, a multiplexing unit 207, an IFFT (Fast Inverse Fourier Transform) unit 209, a G1 (Guard Interval) insertion unit 211, a D/A (Digital Conversion) unit l/Analog) 213, an RF (Radio Frequency) transmission unit 215, and transmit antenna 111. It should be noted that, each physical downlink shared channel processing unit 201 and each downlink control channel processing unit physicist 203 have the same configuration and function, respectively, and thus one of them will be described as the representative one.
In addition, as shown in figure 2, each physical downlink shared channel processing unit 201 includes a turbo coding unit 219 and a data modulation unit 221. Furthermore, as shown in figure 2, the processing unit of Physical downlink control channel 203 includes a convolutional coding unit 223 and a QPSK modulation unit 225. Physical downlink shared channel processing unit 201 performs baseband signal processing to transmit the targeted information data to the apparatus. of mobile station 5 in the OFDM scheme. The turbo coding unit 219 performs turbo coding of the inputted information data to improve the error resilience of the data with an input coding rate from the control unit 105, and output the result to the data modulation unit 221. The data modulation unit 221 modulates the data, which is encoded by the turbo encoding unit 219, into a modulation scheme entered from the control unit 105, such as a modulation scheme of QPSK, 16QAM, 64QAM, or similar, and generates a signal sequence of modulation symbols. The data modulation unit 221 outputs the generated signal sequence to the multiplexing unit 207.
The physical downlink control channel processing unit 203 performs baseband signal processing to transmit the control data, which is inputted from the control unit 105, in the OFDM scheme. A convolutional encoding unit 223, based on the encoding rate entered from the control unit 105, performs convolutional encoding to improve the error resilience of control data. Here, the control data is controlled bit by bit. In addition, the convolutional encoding unit 223, based on the encoding rate entered from the control unit 105, also performs rate matching on the convolutionally encoded bits in order to adjust the number of output bits. The convolutional coding unit 223 outputs the coded control data to the QPSK modulation unit 225. The QPSK modulation unit 225 modulates the control data, which the convolutional coding unit 223 has coded, in the QPSK modulation scheme and outputs a signal sequence of the modulated modulation symbols to the multiplexing unit 207. The downlink pilot channel processing unit 205 generates a downlink reference signal (also referred to as a specific cell RS), which is a known signal in the apparatus. of mobile station 5, and outputs the same to the multiplexing unit 207.
The multiplexing unit 207 multiplexes a signal input from the physical downlink pilot channel processing unit 205, a signal input from each physical downlink shared channel processing unit 201, and a signal input from each unit of physical downlink control channel processing 203 in a downlink radio frame, according to an instruction from the control unit 105. The control information related to radio resource allocation of a physical downlink shared channel and to radio resource allocations of a physical downlink control channel set by the radio resource control unit 103 are entered into the control unit 105, and based on this control information, the control unit 105 controls the processing of the multiplexing 207.
It should be noted that the multiplexing unit 207 performs multiplexing between a physical downlink shared channel and a physical downlink control channel in a time multiplexed manner, as shown in Fig. 11. In addition, the multiplexing unit 207 performs multiplexing between a downlink pilot channel and other channels in a time/frequency multiplexed manner. In addition, the multiplexing unit 207 can multiplex the physical downlink shared channels directed to the respective mobile station apparatus 5 into a downlink resource block pair unit, and can multiplex the physical downlink shared channels with respect to a mobile station apparatus 5 using a plurality of pairs of downlink resource blocks. In addition, the multiplexing unit 207 performs multiplexing of the physical downlink control channels directed to the respective mobile station apparatus 5 using a plurality of downlink resource elements dispersed within the same component frequency band. of downlink. The multiplexing unit 207 outputs the multiplexed signal to an IFFT unit 209.
The IFFT unit 209 performs the fast inverse Fourier transform of the signal that the multiplexing unit 207 has multiplexed, and performs the OFDM modulation, and outputs the result to the G1 211 insertion unit. The G1 211 insertion unit generates a digital signal from baseband which includes symbols in the OFDM scheme by adding a guard interval to the signal on which the IFFT unit 209 performed the OFDM modulation. As is well known, the guard interval is generated by copying the header or an end part of a symbol to be transmitted. The G1 inserter unit 211 outputs the generated baseband digital signal to the D/A unit 213. The D/A unit 213 converts the baseband digital signal inputted from the G1 211 insertion unit into an analog signal, and outputs the same to an RF transmission unit 215. The RF transmission unit 215 generates a phase component and an orthogonal component of an intermediate frequency from the analog signal input from the D/A unit 213, and removes the redundant frequency components for the intermediate frequency band. Next, the RF transmission unit 215 converts (upconverting) the intermediate frequency signal to a high frequency signal, removes the redundant frequency components, increases the electrical power and transmits the resulting signal to the mobile station apparatus 5 through of the transmit antenna 111. <Configuration of the receiving processing unit 101 of the base station apparatus 3>
Hereinafter, the details of the receive processing unit 101 of the base station apparatus 3 will be described. Figure 3 is a schematic block diagram showing the configuration of the receive processing unit 101 of the base station apparatus 3, in accordance with the embodiment of the present invention. As shown in Fig. 3, the receive processing unit 101 includes an RF receiving unit 301, an A/D (Analog/Digital conversion) unit 303, a component frequency band separation unit 305, a plurality of receive processing units for each uplink component frequency band 307-1 to 307-M (hereinafter, the receive processing units for each uplink component frequency band 307-1 to 307-M are denoted as a receive processing unit for each frequency band of uplink component 307). Furthermore, as shown in Fig. 3, the receive processing unit for each uplink component frequency band 307 includes a symbol timing detection unit 309, a GL removal unit 311, an FFT unit 313, a unit of subcarrier demapping 315, a channel estimating unit 317, a channel equalization unit 319 for physical uplink shared channels, a channel equalization unit 321 for physical uplink control channels, an IDFT unit 323, a data demodulation unit 325, a turbo decoding unit 327, a physical uplink control channel detection unit 329 and an uplink link channel quality measuring unit 331. It should be noted that each processing unit of receive for each uplink component frequency band 307 has the same configuration and function, and thus one of them will be described as representative.
The RF receiving unit 301 appropriately amplifies a signal received by the receiving antenna 109, converts (downconversion) this signal to an intermediate frequency, removes unnecessary frequency components, controls the amplification level so that the signal level is properly maintained, and orthogonally demodulates the received signal based on the in-phase component and the orthogonal component of the received signal. The RF receiving unit 301 outputs the orthogonally demodulated analog signal to the A/D unit 303. The A/D unit 303 converts the analog signal, which the RF receiving unit 301 orthogonally demodulated, into a digital signal and outputs the digital signal converted to the component frequency band separation unit 305. The component frequency band separation unit 305 separates the received signal for each uplink component frequency band from a system bandwidth of uplink, and outputs the resulting signal to each receive processing unit for each uplink component frequency band 307.
The receive processing unit for each uplink component frequency band 307 performs demodulation and decoding of the physical uplink shared channel and the physical uplink control channel within an uplink component frequency band and detects information data and control data. In addition, the receive processing unit for each uplink component frequency band 307 measures the uplink channel quality.
The symbol timing detection unit 309, based on the signal inputted from the component frequency band separation unit 305, detects the timing of a symbol, and outputs a control signal indicative of the timing of a limit of the symbols. detected to the removal unit G1 311. The removal unit G1 311, based on the control signal from the symbol timing detection unit 309, removes a portion corresponding to the guard interval from the input signal from of the component frequency band separation unit 305, and outputs the remaining signal portion to the FFT unit 313. The FFT unit 313 performs fast Fourier transform of the input signal from the removal unit G1311, performs the modulation OFDM Broadcast by DFT, and output the result to the subcarrier demapping unit 315. It should be noted that, the number of FFT points of the FFT unit 313 is equal to the number of IFFT points of a unit. the IFFT of the mobile station apparatus 5 to be described later.
The subcarrier demapping unit 315, based on the control signal inputted from the control unit 105, separates the signal, which the FFT unit 313 has demodulated, into the uplink reference signals (a demodulation reference signal and a signal reference channel) of the uplink pilot channels (an uplink pilot channel for demodulation and an uplink pilot channel for reference), a physical uplink shared channel signal, and a physical uplink control channel signal. The subcarrier demapping unit 315 outputs the separate demodulation reference signal to the channel estimation unit 317, outputs the separate physical uplink shared channel signal to the channel equalization unit for physical uplink shared channels 319 , outputs the separate physical uplink control channel signal to the channel equalization unit for physical uplink control channels 321, and also outputs the separate audible reference signal to the channel quality measurement unit. uplink link 331.
The channel estimation unit 317 estimates the variation in a channel using the demodulation reference signal, which the subcarrier demapping unit 315 has separated, and a known signal. The channel estimation unit 317 outputs the estimated channel estimation value to the channel equalization unit for physical uplink shared channels 319 and to the channel equalization unit for physical uplink control channels 321. The unit of channel equalization for physical uplink shared channels 319, based on the channel estimation value entered from the channel estimation unit 317, equalizes the amplitude and phase of the physical uplink shared channel signal as the demapping unit of subcarrier 315 separated. Here, "equalization" refers to the process of restoring the variation in a channel that a signal experienced during radio communications. The channel equalization unit for physical uplink shared channels 319 outputs the adjusted signal to the IDFT unit 323.
The IDFT unit 323 performs the inverse discrete Fourier transform of the input signal from the channel equalization unit for physical uplink shared channels 319, and outputs the result to a data demodulation unit 325. The data demodulation unit 325. demodulates the physical uplink shared channel signal that the IDFT unit 323 has converted, and outputs the demodulated physical uplink shared channel signal to the turbo decoding unit 327. This demodulation is compatible demodulation with a modulation scheme that is used in the data modulation unit of the mobile station apparatus 5, and the modulation scheme is inputted from the control unit 105. The turbo decoding unit 327 decodes information data from the physical uplink shared channel signal which is input from and demodulated by data demodulation unit 325. Encoding rate is input from control unit 105.
The channel equalization unit for physical uplink control channels 321 equalizes the amplitude and phase of a physical uplink control channel signal which is separated in the subcarrier demapping unit 315, based on the estimation value of channel entered from the channel estimation unit 317. The channel equalization unit for physical uplink control channels 321 outputs the equalized signal to the physical uplink control channel detection unit 329. The channel detection unit of physical uplink control 329, according to the transmitted control data (a scheduling request, a channel quality indicator, a reception acknowledgment response), demodulates and decodes the signal, which is input from the channel equalization for physical uplink control channels 321, and detects the control data. The physical uplink control channel detection unit 329 detects the signal in a radio resource that is allocated in the mobile station apparatus 5 in order to transmit a scheduling request. For example, the physical uplink control channel detection unit 329 multiplies an orthogonal sequence to the signal of an uplink resource block, which is allocated in the mobile station apparatus 5 in order to transmit a scheduling request, to match a signal, and if the electrical power of the combined signal is equal to or greater than a predetermined threshold value, the physical uplink control channel detection unit 329 determines that a scheduling request signal from the mobile station apparatus 5 has been detected.
It should be noted that the physical uplink control channel detection unit 329 makes use of the same orthogonal sequence as the orthogonal sequence multiplied in the mobile station apparatus 5. The physical uplink control channel detection unit 329, when it has A schedule request signal is detected, generates a control signal indicative of the detected schedule request, and outputs the same to the control unit 105. In contrast, if the electrical energy of the combined signal is less than a predetermined threshold value, the Physical uplink control channel detection unit 329 determines that a schedule request signal from the mobile station apparatus 5 has not been detected. In this case, the physical uplink control channel detection unit 329 generates a control signal indicative of an undetected scheduling request, and outputs the same to the control unit 105. physical uplink control 329 performs demodulation and decoding on a signal of an uplink resource block, which is allocated in mobile station apparatus 5 in order to transmit a channel quality indicator and an acknowledgment response and is equalized in the channel equalization unit for physical uplink control channels 321, and detects the channel quality indicator and the acknowledgment response. The physical uplink control channel detection unit 329 outputs the detected control data to the control unit 105.
The uplink link channel quality measuring unit 331 measures the channel quality using an audible reference signal input from the subcarrier demapping unit 315, and outputs the channel quality measurement result of the resource block. from uplink to the control unit 105. The uplink link channel quality measuring unit 331 is indicated by the control unit 105 on a signal from the uplink resource block whose uplink subframe performs the channel quality measurement of the mobile station device 5.
The control unit 105, based on the control data that the base station apparatus 3 transmitted using a physical downlink control channel to the mobile station apparatus 5 and the control information that was transmitted using a shared downlink channel control the subcarrier demapping unit 315, the data demodulation unit 325, the turbo decoding unit 327, the channel estimation unit 317, the physical uplink control channel detection unit 329, and the unit uplink link channel quality measuring system 331. Furthermore, the control unit 105, based on the control data and the control information that the base station apparatus 3 has transmitted to the mobile station apparatus 5, knows in which radio resource (uplink resource block), physical uplink shared channel, physical uplink control channel, and audible reference signal, which each mobile station apparatus 5 transmitted, are d taxed. <Full configuration of mobile station device 5>
Hereinafter in the present document, the configuration of the mobile station apparatus 5 according to the embodiment will be described in accordance with Figure 4, Figure 5 and Figure 6. Figure 4 is a schematic block diagram showing the configuration of the mobile station apparatus 5, in accordance with the embodiment of the present invention. As shown in Figure 4, the mobile station apparatus 5 includes the receive processing unit 401, the radio resource control unit 403, the control unit 405 and the transmission processing unit 407. control unit 405 includes a simultaneous transmission control unit 4051.
The receive processing unit 401 receives a signal from the base station apparatus 3, and demodulates and decodes the received signal in accordance with an instruction from the control unit 405. The receive processing unit 401, upon detecting the signal of the physical downlink control channel addressed to its own apparatus, outputs the control data obtained by decoding the physical downlink control channel signal, to the control unit 405. In addition, the receive processing unit 401, according to an instruction of the control unit 405 after outputting the control data included in a physical downlink control channel to the control unit 405, it outputs the information data obtained by decoding a shared physical downlink channel addressed to its apparatus itself, to a higher layer via the control unit 405. In addition, the receiving processing unit 401 outputs the obtained control information decoded. a physical downlink shared channel is created, the control information being generated by the radio resource control unit 103 of the base station apparatus 3, in the control unit 405, and sending it to the control unit of radio resource 403 of the mobile station apparatus 5 via the control unit 405.
Examples of the control information generated by the radio resource control unit 103 of the base station apparatus 3 include the control information indicative of the radio resource allocation of an audible reference signal, the control information indicative of the cycle. an audible reference signal subframe, control information indicative of the radio resource allocation of a physical uplink control channel, and control information indicating whether the first format is used or the second format is used for the radio format. physical uplink control channel signal of the sound reference signal subframe of each uplink component frequency band. In addition, the receive processing unit 401 measures the channel quality of a downlink using the downlink pilot channel downlink reference signal of each downlink component frequency band, and outputs the measurement result to the unit. control 405. The details of the receiving processing unit 401 will be described later.
The control unit 405 includes the simultaneous transmission control unit 4051. The control unit 405 confirms the data, which has been transmitted using a shared physical downlink channel and entered from the receive processing unit 401, outputs the data. information within the data to a higher layer, and controls the receive processing unit 401 and the transmit processing unit 407 on the basis of the control information, which is generated by the radio resource control unit 103 of the station apparatus. base 3, within the data. Furthermore, in a similar way, the control unit 405, based on the control data that has been transmitted using a physical downlink control channel and entered by the receive processing unit 401, controls the receive processing unit 401. and the transmission processing unit 407.
Simultaneous transmission control unit 4051, when the radio resources of an audible reference signal and a physical uplink control channel have been set in the same uplink subframe (time frame) by the base station apparatus 3, controls the transmission processing of the sound reference signal and the physical uplink control channel signal, according to whether each radio resource is set in the same uplink component frequency band or each radio resource is set to a band of different uplink component frequency, and outputs a control signal to the transmission processing unit 407. In addition, the simultaneous transmission control unit 4051, according to the format of a physical uplink control channel signal which is used in order to transmit a scheduling request in the sound reference signal subframe of each uplink component frequency band, controls the processing of t transmission of the audible reference signal and the physical uplink control channel signal. The format is composed of a first format, in which a radio resource of the time domain to which the radio resource of a sound reference signal can be allocated, is used, or a second format, in which the radio resource of the domain of time, to which the radio resource of an audible reference signal can be allocated, is not used.
Simultaneous transmission control unit 4051, when the sonic reference signal subframe format of a physical uplink control channel signal is the first format and the radio resources of an audible reference signal and a control channel physical uplink have been simultaneously set in the same uplink component frequency band in the radio resource control unit 403, performs the control in order to transmit the physical uplink control channel signal without transmitting the audible reference signal in the unit of transmission processing 407, and when the audible reference signal subframe format of a physical uplink control channel signal is the first format and the radio resources of an audible reference signal and a physical uplink control channel have been simultaneously set in a different uplink component frequency band, respectively, in the radio resource control unit 403, the un Simultaneous transmission control age 4051 performs the control in order to simultaneously transmit the audible reference signal and the physical uplink control channel signal to the transmission processing unit 407.
It should be noted that, in the case where simultaneous transmission of signals with different uplink component frequency bands is prohibited by the base station apparatus 3, the simultaneous transmission control unit 4051, even when the radio resources of an audible reference signal and a physical uplink control channel have been simultaneously set in a different uplink component frequency band, respectively, in the radio resource control unit 403, can perform the control in order to transmit the physical uplink control channel signal without transmitting the audible reference signal in the transmission processing unit 407. The base station apparatus 3 controls the simultaneous transmission of the signals with different uplink component frequency bands based on the information related to the remaining transmit power capable of transmitting, the notification of which the mobile station apparatus 5 provides, and when the power Remaining transmission power capable of transmission is large, simultaneous transmission of signals with different uplink component frequency bands is allowed, while when the remaining transmission power capable of transmission is small, simultaneous transmission of signals with different uplink frequency bands is allowed. different uplink component is prohibited.
Simultaneous transmission control unit 4051, when the audible reference signal subframe format of a physical uplink control channel signal is the second format and the radio resources of the audible reference signal and the uplink control channel have been simultaneously set in the same uplink component frequency band in the radio resource control unit 403, performs the control in order to simultaneously transmit the audible reference signal and the physical uplink control channel signal in the transmission processing 407. In contrast, when the physical uplink control channel signal sonic reference signal subframe format is the second format and the sonic reference signal and physical uplink control channel radio resources have been simultaneously tuned in a different uplink component frequency band, respectively, in the radio resource control unit 403, simultaneous transmission control unit 4051 performs the control in order to simultaneously transmit the audible reference signal and the physical uplink control channel signal to transmission processing unit 407.
It should be noted that even in the case where simultaneous transmission of signals with different uplink component frequency bands is basically prohibited by the base station apparatus 3, the simultaneous transmission control unit 4051, when the format of a physical uplink control channel signal is the second format and the radio resources of the audible reference signal and the physical uplink control channel have been simultaneously set to a different uplink component frequency band, respectively, in the unit of radio resource control 403, performs the control in order to simultaneously transmit the audible reference signal and the physical uplink control channel signal in the transmission processing unit 407.
In addition, simultaneous transmission control unit 4051, when the audible reference signal subframe format of a physical uplink control channel signal is the first format and the radio resources of the audible reference signal and the channel physical uplink control have been simultaneously set in a different uplink component frequency band, respectively, in the radio resource control unit 403, performs the control in order to transmit the physical uplink control channel signal without transmitting the audible reference signal in transmission processing unit 407. In contrast, when the audible reference signal subframe format of the physical uplink control channel signal is the second format and the radio resources of the audible reference signal and the physical uplink control channel have been simultaneously set in a different uplink component frequency band, respectively, in the unit. of radio resource control 403, simultaneous transmission control unit 4051 performs the control in order to simultaneously transmit the audible reference signal and the physical uplink control channel signal in the transmission processing unit 407.
That is, the simultaneous transmission control unit 4051, when the simultaneous transmission of signals with different uplink component frequency bands is basically prohibited by the base station apparatus 3, controls the transmission processing of an audible reference signal and a physical uplink control channel signal in accordance with the physical uplink control channel format, and in the case of the first format, the simultaneous transmission control unit 4051 performs the control in order to transmit the control channel signal of physical uplink without transmitting the audible reference signal in the transmission processing unit 407, while in the case of the second format, the simultaneous transmission control unit 4051 performs the control in order to simultaneously transmit the audible reference signal and the signal of physical uplink control channel in the transmission processing unit 407. The control unit 405 controls the processing unit transmission entity 407 in order to transmit an audible reference signal and a physical uplink control channel signal based on the control of simultaneous transmission control unit 4051.
The radio resource control unit 403 controls the receive processing unit 401 and the transmit processing unit 407 through the control unit 405 while maintaining the control information that is generated by the radio resource control unit 103 of the base station apparatus 3, and a notification thereof that base station apparatus 3 provides. For example, the radio resource control unit 403 issues, to the control unit 405, the control signal related to a radio resource allocation (a transmission period, an uplink resource block) of an uplink signal. sound reference; the transmit power of a physical uplink shared channel, a physical uplink control channel, and an uplink pilot channel; radio resource allocation of a physical uplink control channel; and the format used for the physical uplink control channel signal of each uplink component frequency band.
In addition, the radio resource control unit 403 determines whether or not to transmit a signal indicative of a scheduling request using a radio resource that is allocated from the base station apparatus 3, and when it is determined that the signal indicative of a scheduling request is transmitted, the radio resource control unit 403 issues a control signal indicative of this effect to the control unit 405, and controls the transmission processing unit 407 in order to transmit the signal using a physical uplink control channel.
The transmission processing unit 407 encodes the information data and the control data in accordance with an instruction from the control unit 405, and arranges the modulated signal in the radio resources of a shared physical uplink channel and a control channel. physical uplink, and transmits it to the base station apparatus 3 through the transmit antenna 411. In addition, the transmit processing unit 407 transmits a audible reference signal in accordance with an instruction from the control unit 405. details of transmission processing unit 407 will be described later. It should be noted that, as the radio resource allocation of a physical uplink control channel for transmitting a scheduling request, an uplink resource block of a periodic uplink subframe is allocated in mobile station apparatus 5. <Reception processing unit 401 of mobile station apparatus 5>
Hereinafter, the details of the reception processing unit 401 of the mobile station apparatus 5 will be described. Figure 5 is a schematic block diagram showing the configuration of the receive processing unit 401 of the mobile station apparatus 5, according to the embodiment of the present invention. As shown in Fig. 5, the receiving processing unit 401 includes an RF receiving unit 501, an A/D unit 503, a symbol timing detection unit 505, a G1 removal unit 507, an FFT unit 509 , a demultiplexing unit 511, a channel estimation unit 513, a downlink link channel quality measuring unit 515, a channel compensation unit 516 for physical downlink shared channels, a channel decoding unit shared physical downlink 517, a channel compensation unit 519 for physical downlink control channels, and a physical downlink control channel decoding unit 521. In addition, as shown in Figure 5, the channel decoding unit physical downlink shared 517 includes a data demodulation unit 523 and a turbo decoding unit 525. physical downlink control 521 includes a QPSK 527 demodulation unit and a Viterbi 529 decoder unit.
The RF receiving unit 501 appropriately amplifies a signal received by the receiving antenna 409, converts (downconverted) it to an intermediate frequency, removes unnecessary frequency components, and controls the amplification level so that the signal level is properly maintained, and orthogonally demodulates the received signal based on the in-phase component and orthogonal component of the received signal. RF receiving unit 501 outputs the orthogonally demodulated analog signal to A/D unit 503.
The A/D unit 503 converts the analog signal, which the RF receiving unit 501 has demodulated orthogonally, into a digital signal, and outputs
The digital signal is converted to the symbol timing detection unit 505 and to the G1 removal unit 507. The symbol timing detection unit 505, based on the digital signal that the A/D unit 503 has converted, detects the timing of a symbol and outputs a control signal indicative of the timing of a limit symbol to the Gl 507 removal unit. The Gl 507 removal unit, based on a control signal from the symbol timing detection unit 505, removes a portion corresponding to the guard interval of the digital signal that the A/D unit 503 has output, and outputs the remaining signal portion to the FFT unit 509. The FFT unit 509 performs fast Fourier transform of the input signal from the unit removal G1 507, performs the OFDM modulation and outputs the result to the demultiplexing unit 511.
The demultiplexing unit 511, based on the control signal inputted from the control unit 405, separates a signal that the FFT unit 509 has demodulated into a physical downlink control channel signal and a physical downlink shared channel signal. . The demultiplexing unit 511 outputs the separate physical downlink shared channel signal to the channel compensation unit 516 for the physical downlink shared channels, and also outputs the separate physical downlink control channel signal to the offset compensation unit. channel 519 for physical downlink control channels. Furthermore, the demultiplexing unit 511 separates a downlink resource element on which a downlink pilot channel is arranged, and outputs a downlink reference signal from the downlink pilot channel to the channel estimation unit 513 and the 515 downlink link channel quality measurement.
The channel estimation unit 513 outputs a channel compensation value to adjust the amplitude and phase in channel compensation unit 516 for physical downlink shared channels and channel compensation unit 519 for physical downlink control channels, in order to estimate a variation in the channel and compensate for it using the downlink reference signal of the downlink pilot channel, which the demultiplexing unit 511 has separated, and a known signal. The downlink link channel quality measurement unit 515 measures the downlink channel quality using the downlink reference signal from the downlink pilot channel, and outputs the downlink channel quality measurement result to the control unit 405. The channel compensation unit 516 for physical downlink shared channels adjusts the amplitude and phase of the physical downlink shared channel signal, which the demultiplexing unit 511 separated, according to the channel compensation value entered from of the channel estimation unit 513. The channel compensation unit 516 for physical downlink shared channels outputs a signal, the channel of which is adjusted, in the data demodulation unit 523 of the physical downlink shared channel decoding unit 517.
The physical downlink shared channel decoding unit 517, based on an instruction from the control unit 405, performs the physical downlink shared channel demodulation and decoding, and detects the information data. The data demodulation unit 523 demodulates a physical downlink shared channel signal inputted from the channel compensation unit 516, and outputs the demodulated physical downlink shared channel signal to the turbo decoding unit 525. This demodulation is the demodulation compatible with the modulation scheme used in the data modulation unit 221 of the base station apparatus 3. The turbo decoding unit 525 decodes the information data from the physical downlink shared channel signal which is input from the data demodulation unit 523 and is demodulated, and outputs the information data to a higher layer through control unit 405. It should be noted that, control information that is transmitted using a shared physical downlink channel, control information being generated by the radio resource control unit 103 of the base station apparatus 3 is also output to the base station unit. control 405, and are also issued to radio resource control unit 403 via control unit 405.
The channel compensation unit 519 for physical downlink control channels adjusts the amplitude and phase of the physical downlink control channel signal that the demultiplexing unit 511 has separated, according to the channel compensation value entered from the channel estimation unit 513. The channel compensation unit 519 for physical downlink control channels outputs the adjusted signal to the QPSK demodulation unit 527 of the physical downlink control channel decoding unit 521.
Physical downlink control channel decoding unit 521 demodulates and decodes an input signal from channel compensation unit 519 to physical downlink control channels, and detects the control data, as follows. The QPSK demodulation unit 527 performs QPSK demodulation on a physical downlink control channel signal, and outputs the result to the Viterbi decoder unit 529. The Viterbi decoder unit 529 decodes the signal that the QPSK demodulation unit 527 has demodulated , and outputs the coded control data to the control unit 405. Here, this signal is expressed bit by bit, and the Viterbi decoder unit 529 also performs a mismatch rate on the inserted bits in order to adjust the number of bits on which Viterbi decoding is performed.
It should be noted that, the control unit 405 determines whether the control data entered from the Viterbi 529 decoder unit is correct or not and the control data addressed to its own apparatus, and when it is determined that this control data are correct and the control data addressed to its own apparatus, the control unit 405 controls the demultiplexing unit 511, the data demodulation unit 523, the turbo decoding unit 525 and the transmission processing unit 407 based on the control data. For example, the control unit 405, when the control data includes information about the radio resource allocation of a physical uplink shared channel, performs the control in order to transmit a physical uplink shared channel signal in a band of uplink component frequency, at which a radio resource has been allocated, to the transmit processing unit 407. <Transmission processing unit 407 of mobile station apparatus 5>
Fig. 6 is a schematic block diagram showing the configuration of the transmission processing unit 407 of the mobile station apparatus 5, in accordance with the embodiment of the present invention. As shown in Fig. 6, the transmission processing unit 407 includes a plurality of transmission processing units for each uplink component frequency band 601-1 to 601-M (hereinafter, the processing units of transmission for each uplink component frequency band 601-1 to 601-M are collectively denoted as a transmission processing unit for each uplink component frequency band 601), a component frequency band combination unit 603, a D/A unit 605, an RF transmission unit 607, and a transmit antenna 411. In addition, as shown in Fig. 6, the transmission processing unit for each uplink component frequency band 601 includes a unit a turbo coding unit 611, a data modulation unit 613, a DFT unit 615, an uplink pilot channel processing unit 617, a d-channel processing unit. and physical uplink control 619, a subcarrier mapping unit 621, an IFFT unit 623, a multiplication unit 624 and an insertion unit G1625. The mobile station apparatus 5 has the number of transmission processing units for each uplink component frequency band 601 which corresponds to the number of uplink component frequency bands. It should be noted that each transmission processing unit for each uplink component frequency band 601 has the same configuration and function, and thus one of them will be described as representative.
The transmission processing unit for each uplink component frequency band 601 performs coding and modulation on the information data and control data, and generates a signal to be transmitted using a shared physical uplink channel and a shared channel. physical uplink control within an uplink component frequency band. Furthermore, the transmission processing unit for each uplink component frequency band 601 generates a sonic reference signal and a demodulation reference signal to be transmitted using an uplink pilot channel. The turbo encoding unit 611 performs turbo encoding to improve the data error resiliency on the input information data at an encoding rate indicated by the control unit 405, and outputs the resulting data to the data modulation unit 613. data modulation unit 613 modulates the data that is encoded by turbo encoding unit 611 into a modulation scheme indicated by control unit 405, such as a QPSK, 16QAM, or 64QAM modulation scheme, and generates a sequence of modulation symbols sign. The data modulation unit 613 outputs the generated signal sequence of the modulation symbol to the DFT unit 615.
The DFT unit 615 performs the discrete Fourier transform of the signal that the data modulation unit 613 has output, and outputs the result to the subcarrier mapping part 621. The physical uplink control channel processing unit 619 performs a processing of baseband signal to transmit the control data entered from the control unit 405. The control data entered in the physical uplink control channel processing unit 619 includes a schedule request, a channel quality indicator. a downlink, an acknowledgment reply, and the like. The physical uplink control channel processing unit 619 performs baseband signal processing and outputs the generated signal to the subcarrier mapping unit 621.
The uplink pilot channel processing unit 617, based on an instruction from the control unit 405, generates an uplink reference signal, which is a known signal in the base station apparatus 3, as a signal used for a demodulation reference signal and an audible reference signal, and output the same to the subcarrier mapping unit 621.
The subcarrier mapping unit 621, according to instructions from the control unit 405, provides an input signal from the uplink pilot channel processing unit 617, a signal input from the DFT unit 615, and an input signal from the physical uplink control channel processing unit 619 on a subcarrier, and outputs the same to the IFFT unit 623. It should be noted that the subcarrier mapping unit 621 has an audible reference signal, a signal a demodulation reference signal within a physical uplink shared channel, and a demodulation reference signal within a physical uplink control channel, as shown in Fig. 12, and outputs the disposition result.
The IFFT unit 623 performs the inverse fast Fourier transform of a signal that the subcarrier mapping unit 621 has output, and outputs the result to the multiplication unit 624. Here, the number of IFFT points of the IFFT unit 623 is greater than the number of DFT points of the DFT unit 615. The mobile station apparatus 5, using the DFT unit 615, the subcarrier mapping unit 621 and the IFFT unit 623, performs DFT-broadcast OFDM modulation on a signal that is transmitted using a shared physical uplink channel. The multiplication unit 624 multiplies an orthogonal code by one unit of the SC-FDMA symbol according to an instruction from the control unit 405, and outputs the result to the insertion unit G1 625. Here, the control unit 405, with respect to a physical uplink control channel signal which includes the control data of a scheduling request, controls the multiplication unit 624 to multiply each orthogonal code of the orthogonal sequence, as shown in Fig. 13 by an SC-FDMA symbol, while with respect to a physical uplink shared channel signal, an audible reference signal or a demodulation reference signal, the control unit 405 controls the multiplication unit 624 to output the input signal as is, without multiplying it. Insertion unit G1625 adds a guard interval to the input signal from multiplication unit 624, and outputs the result to component frequency band combining unit 603.
The component frequency band combining unit 603 combines the signal for each uplink component frequency band input from each transmission processing unit for each uplink component frequency band 601, and outputs the result to the D/A unit 605. D/A unit 605 converts a baseband digital signal input from the component frequency band combination unit 603 into an analog signal, and outputs the analog signal to the RF transmission unit 607 The RF transmission unit 607 generates an in-phase component and an orthogonal component of an intermediate frequency from the analog signal inputted from the D/A unit 605, and removes the redundant frequency components from the intermediate frequency band. Next, the RF transmission unit 607 converts (upconverting) the intermediate frequency signal to a high frequency signal, removes the redundant frequency components, increases electrical energy, and transmits the resulting signal to the station apparatus. of base 3 through the transmit antenna 411. With the above configuration, the transmit processing unit 407 transmits an audible reference signal and a physical uplink control channel signal to the base station apparatus 3 on the basis of the control. of the control unit 405. <Transmission processing of an audible reference signal and a physical uplink control channel signal>
Transmission processing of an audible reference signal and a physical uplink control channel signal will be described. A case will be described, where two uplink component frequency bands (a first uplink component frequency band and a second uplink component frequency band) are used. Fig. 7 is a diagram showing an example of a combination of radio resources set in an audible reference signal and a physical uplink control channel signal in the embodiment of the present invention. A case will be described, where one sound reference signal subframe is set for every two uplink subframes in the first uplink component frequency band and in the second uplink component frequency band. Furthermore, a case will be described, in which in the first uplink component frequency band, the radio resource of a sonic reference signal is allocated for every two sonic reference signal subframes, and in the second component frequency band of uplink, the radio resource of an audible reference signal is allocated for every four audible reference signal subframes. Furthermore, a case will be described, in which the radio resource of a physical uplink control channel signal has been allocated in the first uplink component frequency band for every two uplink subframe. In addition, a case will be described, in which in the first uplink component frequency band, the first format is set in the physical uplink control channel from the sound reference signal subframe to the uplink subframe #4, and the second format is set in the physical uplink control channel of the audible reference signal subframe of uplink subframe #5 and later. It should be noted that the first format is already set in the physical uplink control channel of the uplink subframe which is not the audible reference signal subframe.
First, a case will be described, in which the radio resources of an audible reference signal and a physical uplink control channel are only tuned in one of the uplink component frequency bands. A case will be described, in which the physical uplink control channel of the first format is fitted in the sound reference signal subframe of the first uplink component frequency band. The mobile station apparatus 5, when the radio resources of an audible reference signal and a physical uplink control channel signal have been set in the same uplink subframe in the first uplink component frequency band (Case #1 of the Figure 7), transmits only the physical uplink control channel signal without transmitting the audible reference signal.
A case will be described, in which the physical uplink control channel of the second format is fitted in the sonic reference signal subframe of the first uplink component frequency band. The mobile station apparatus 5, when the radio resources of an audible reference signal and a physical uplink control channel signal have been set in the same uplink subframe in the first uplink component frequency band (Case #2 of the Figure 7), simultaneously transmits the audible reference signal and the physical uplink control channel signal.
In the following, a case will be described, in which the radio resources of an audible reference signal and a physical uplink control channel are set in a different uplink component frequency band, respectively. A case will be described, in which the physical uplink control channel of the first format is set in the sound reference signal subframe of the first uplink component frequency band. The mobile station apparatus 5, when the radio resource of a sound reference signal has been set in the same uplink subframe in the second uplink component frequency band, and the radio resource of a control channel signal If the physical uplink has been set in the first uplink component frequency band (Case #3 of Figure 7), it simultaneously transmits the audible reference signal and the physical uplink control channel signal. It should be noted that, the mobile station apparatus 5 having a remaining transmit power capable of transmitting, based on an instruction from the base station apparatus 3, when the radio features an audible reference signal and if a physical uplink control channel signal has been fitted in the same uplink subframe with a different uplink component frequency band, it only transmits the physical uplink control channel signal without transmitting the audible reference signal.
A case will be described, in which the physical uplink control channel of the second format is fitted in the sonic reference signal subframe of the first uplink component frequency band. The mobile station apparatus 5, when the radio resource of an audible reference signal has been set in the same uplink subframe in the second uplink component frequency band, and the radio resource of a control channel signal If the physical uplink has been set in the first uplink component frequency band (Case #4 in Figure 7), it simultaneously transmits the audible reference signal and the physical uplink control channel signal. It should be noted that, the mobile station apparatus 5, regardless of the remaining transmit power capable of transmitting, when the radio resources of an audible reference signal and a physical uplink control channel signal have been set in the same subframe of uplink with a different uplink component frequency band and the physical uplink control channel signal format is the second format, simultaneously transmits the audible reference signal and the physical uplink control channel signal.
It should be noted that, the mobile station apparatus 5, when a scheduling request is not transmitted in an uplink subframe in which the radio resource of the physical uplink control channel for transmitting a scheduling request has been allocated, it does not uses the allocated radio resource. Even when a first format physical uplink control channel has been set in the sonic reference signal subframe of the first uplink component frequency band and the radio feature of a sonic reference signal has been set in the same uplink subframe in the second uplink component frequency band and the radio resource of a physical uplink control channel signal has been further adjusted in the first uplink component frequency band (Case #3 of Figure 7), the station apparatus mobile 5, when it is determined that a scheduling request is not transmitted to the base station apparatus 3, only transmits the audible reference signal. <Transmission processing stream of an audible reference signal and a physical uplink control channel signal>
Fig. 8 is a flowchart showing an example of transmission processing when the radio resources of an audible reference signal from mobile station apparatus 5 and a physical uplink control channel signal have been set in the same subframe. of uplink, according to the embodiment of the present invention. Figure 8 shows the processing in one unit of the uplink subframe. Simultaneous transmission control unit 4051 determines whether an audible reference signal and a physical uplink control channel signal have been fitted in a radio resource of the same uplink component frequency band or not (Step S101). Simultaneous transmission control unit 4051, when it is determined that the audible reference signal and the physical uplink control channel signal have been set in the radio resource of the same uplink component frequency band (Step S101: YES), determines whether the physical uplink control channel signal format is the first format or not (Step S102). In contrast, simultaneous transmission control unit 4051, when it is determined that the sound reference signal and the physical uplink control channel signal have not been set in the radio resource of the same uplink component frequency band, i.e. , that the audible reference signal and the physical uplink control channel signal have been set in the radio resource of a different uplink component frequency band, respectively (Step S101: NO), determines whether the simultaneous transmission of the signals with different uplink component frequency bands is possible or not (Step S103). It should be noted that, the simultaneous transmission control unit 4051, based on the control information that indicates whether the simultaneous transmission of signals with different uplink component frequency bands, the notification that the base station apparatus 3 provides, is allowed or prohibited, determines whether simultaneous transmission of signals with different uplink component frequency bands is possible or not.
In Step S102, simultaneous transmission control unit 4051, when the physical uplink control channel signal format is determined to be the first format (Step S102: YES), controls transmission processing unit 407 in order to transmit only the physical uplink control channel signal without transmitting the audible reference signal (Step S104). In contrast, in Step S102, simultaneous transmission control unit 4051, when it is determined that the physical uplink control channel signal format is not the first format, that is, it is the second format (Step S102: NO ), controls the transmission processing unit 407 in order to simultaneously transmit the audible reference signal and the physical uplink control channel signal (Step S105).
In Step S103, simultaneous transmission control unit 4051, when it is determined that simultaneous transmission of signals with different uplink component frequency bands is possible (Step S103: YES), controls transmission processing unit 407, the in order to simultaneously transmit the audible reference signal and the physical uplink control channel signal (Step S105). In contrast, in Step S103, simultaneous transmission control unit 4051, when it determines that simultaneous transmission of signals with different uplink component frequency bands is not possible (Step S103: NO), determines whether the signal format Physical uplink control channel is the second format or not (Step S106).
Simultaneous transmission control unit 4051, when the physical uplink control channel signal format is determined to be the second format (Step S106: YES), controls transmission processing unit 407 in order to simultaneously transmit the audible reference signal and the physical uplink control channel signal (Step S105). In contrast, simultaneous transmission control unit 4051, when it is determined that the physical uplink control channel signal format is not the second format, i.e., which is the first format, controls transmission processing unit 407 in order to transmit only the physical uplink control channel signal without transmitting the audible reference signal (Step S104). After Step S104 and Step S105, the mobile station apparatus 5 completes the processing related to the control of the transmission processing of the sound reference signal and the physical uplink control channel signal, and repeats the same processing in relation to the subframes of subsequent uplinks.
As described above, in the embodiment of the present invention, when the radio resources of an audible reference signal and a physical uplink control channel signal have been set in the same uplink subframe, the mobile station apparatus 5, which depends on whether each radio resource has been set to the same uplink component frequency band or each radio resource has been set to a different uplink component frequency band, it can properly transmit the audible reference signal and the control channel signal uplink by controlling the transmission processing of the sound reference signal and the physical uplink control channel signal.
More specifically, in the case where the format of a physical uplink control channel signal is the first format in which a radio resource in a time domain into which a sound reference signal can be allocated, i.e., a symbol SC-FDMA in which an audible reference signal can be allocated, the mobile station apparatus 5 is used, when the radio resources of an audible reference signal and a physical uplink control channel signal have been adjusted therein uplink component frequency band, performs the control in order to transmit only the physical uplink control channel signal without transmitting the audible reference signal. Thus, an orthogonal sequence having the same sequence length as a physical uplink control channel with respect to the different mobile station apparatus 5, in which a radio resource (an uplink resource block) of the same frequency domain that this physical uplink control channel is used, it can be used appropriately and the orthogonalization between the physical uplink control channel signals can be performed reliably.
The mobile station apparatus 5, when the radio resources of an audible reference signal and a physical uplink control channel signal have been set in a different uplink component frequency band, respectively, performs the control to in order to simultaneously transmit the audible reference signal and the physical uplink control channel signal. In this way, the base station apparatus 3 can reliably obtain orthogonalization between the signals of a physical uplink control channel relative to a different mobile station apparatus 5, in which a radio resource in the same domain This physical uplink control channel is used and can also measure the uplink channel quality of an uplink component frequency band in which the reference signal was transmitted. Consequently, mobile station apparatus 5 can reliably transmit a scheduling request to base station apparatus 3 and maintain the delay required to complete small data transmission, while base station apparatus 3 can improve efficiency. programming, adaptive modulation, and transmit power control using measured uplink channel quality.
Furthermore, the mobile station apparatus 5 can control the transmission processing suitable for each format by controlling the transmission processing of an audible reference signal and a physical uplink control channel signal according to the format of the signal. physical uplink control channel. The mobile station apparatus 5, in addition to the first format, uses the second format which is a format in which a radio resource in a time domain in which a sound reference signal can be allocated, i.e. an SC-FDMA symbol in which an audible reference signal can be allocated is not used.
More specifically, in the case where the format of a physical uplink control channel signal is the second format, the mobile station apparatus 5, when the radio features an audible reference signal and a control channel signal. physical uplink have been set in the same frequency band as the uplink component, performs the control in order to simultaneously transmit the audible reference signal and the physical uplink control channel signal. In this way, the base station apparatus 3 can reliably obtain orthogonalization between the signals of a physical uplink control channel relative to a different mobile station apparatus 5, in which a radio resource in the same frequency domain that this physical uplink control channel is used and also can measure the uplink channel quality of an uplink component frequency band in which the sound reference signal was transmitted.
The mobile station apparatus 5, when the radio resources of an audible reference signal and a physical uplink control channel signal have been set in a different uplink component frequency band, respectively, performs the control to in order to simultaneously transmit the audible reference signal and the physical uplink control channel signal. In this way, the base station apparatus 3 can reliably obtain orthogonalization between the signals of a physical uplink control channel relative to the different mobile station apparatus 5, in which a radio resource in the same domain of frequency that this physical uplink control channel is used, and also can measure the uplink channel quality of an uplink component frequency band on which the sonic reference signal was transmitted. Consequently, mobile station apparatus 5 can reliably transmit a scheduling request to base station apparatus 3 and maintain the delay required to complete small data transmission, while base station apparatus 3 can improve efficiency. programming, adaptive modulation, and transmit power control using measured uplink channel quality.
The mobile station apparatus 5 with the remaining small transmit power capable of transmission, in which simultaneous transmission of signals with different uplink component frequency bands is basically prohibited by the base station apparatus 3 when the first format is used for the physical uplink control channel signal and radio resources of an audible reference signal and the physical uplink control channel signal have been set in a different uplink component frequency band, respectively, transmits only the physical uplink control channel signal without transmitting audible reference signal due to transmission power restriction. However, when the second format is used for the physical uplink control channel signal and the radio resources of the audible reference signal and the physical uplink control channel signal have been adjusted in an uplink component frequency band Differently, respectively, the above-described mobile station apparatus 5 can simultaneously transmit the sound reference signal and the physical uplink control channel signal in the same uplink subframe without worrying about restrictions on transmission power.
Due to the fact that the radio resources of an audible reference signal and a physical uplink control channel signal of a different uplink component frequency band are set in different SC-FDMA symbols, respectively, and the station apparatus mobile 5 does not basically simultaneously transmit signals with different uplink component frequency bands in one unit of the SC-FDMA symbol, and the transmission power required for each sonic reference signal and physical uplink control channel signal does not is simultaneously generated, the mobile station apparatus 5 with the remaining small transmit power capable of transmission, when the physical uplink control channel signal format is the second format, can simultaneously transmit the sonic reference signal and the physical uplink control channel whose radio resources have been tuned in a different uplink component frequency band, respectiv in the same uplink subframe.
Consequently, the mobile station apparatus 5 with the remaining small transmit power capable of transmission when the physical uplink control channel signal format is the first format and the radio resources of the sonic reference signal and the channel signal Physical uplink control channels have been set in a different uplink component frequency band, respectively, performs the control to transmit the physical uplink control channel signal without transmitting the audible reference signal. In contrast, when the physical uplink control channel signal format is the second format and the radio resources of the audible reference signal and the physical uplink control channel signal have been adjusted in a component frequency band of different uplink, respectively, the above-described mobile station apparatus 5 performs the control in order to simultaneously transmit the sound reference signal and the physical uplink control channel signal. In this way, the physical uplink control channel signal and the sonic reference signal can be properly transmitted in consideration of restrictions on transmission power.
It should be noted that in the uplink subframe that is not an audible reference signal subframe, the format of a physical uplink control channel signal is the first format. Therefore, when the radio resources of an audible reference signal and a physical uplink control channel signal have been allocated in a different uplink component frequency band, respectively, and the uplink subframe of a frequency band of uplink component, in which the radio resource of the physical uplink control channel signal has been allocated, is not a sound reference signal subframe, the mobile station apparatus 5 with the remaining small transmit power capable of transmitting transmits just the physical uplink control channel signal without transmitting the audible reference signal. It should be noted that here a case is being described where the uplink subframe with respect to an uplink component frequency band in which the radio resource of the sound reference signal has been allocated is a signal subframe of audible reference signal, and the uplink subframe with respect to an uplink component frequency band in which the radio resource of the physical uplink control channel signal has been allocated, is not an audible reference signal subframe. When the radio resources of an audible reference signal and a physical uplink control channel signal have been allocated in a different uplink component frequency band, respectively, and the uplink subframe of a different uplink component frequency band uplink, in which the radio resource of the physical uplink control channel signal has been allocated, is a sound reference signal subframe, the mobile station apparatus with the remaining small transmit power capable of transmission 5 determines, in accordance with the format of the physical uplink control channel signal, whether the audible reference signal and the physical uplink control channel signal are simultaneously transmitted or only the physical uplink control channel signal is transmitted.
It should be noted that, the present invention is not limited to the physical uplink control channel signal for transmitting a scheduling request. For example, the present invention can be applied also in physical uplink control channel signal for transmitting an acknowledgment response, in which the first format and the second format as shown in Fig. 12 are used. The mobile station apparatus 5 transmits the acknowledgment response with respect to a physical downlink shared channel signal in an audible reference signal subframe using a physical uplink control channel of the first format or the second format. The mobile station apparatus 5, as in the case of the physical uplink control channel for transmitting a scheduling request described in the above modality, based on the control information indicating whether the first format is used or the second format is used for the format of a physical uplink control channel signal in an audible reference signal subframe selects the format of the physical uplink control channel signal for transmitting an acknowledgment response.
Fig. 9 is a diagram showing an example of a combination of radio resources set in the sound reference signal and the physical uplink control channel signal for transmitting an acknowledgment response in the embodiment of the present invention. Here, a case will be described, in which two uplink component frequency bands (the first uplink component frequency band and the second uplink component frequency band) are used. A case will be described, in which in the first uplink component frequency band and in the second uplink component frequency band, one sound reference signal subframe has been set for every two uplink subframe. Furthermore, a case will be described, in which in the first uplink component frequency band and in the second uplink component frequency band, the radio resource of a sonic reference signal has been allocated for every three reference signal subframes. sound. In addition, a case will be described, in which in the first uplink component frequency band, the first format is set in the physical uplink control channel of the sound reference signal subframe in uplink subframe #4 and the second format is set in the physical uplink control channel of the audible reference signal subframe of uplink subframe #5 and later.
First, a case will be described, in which the radio resources of an audible reference signal and a physical uplink control channel are only tuned in one of the uplink component frequency bands. A case will be described, in which a physical uplink control channel of the first format is fitted in the sonic reference signal subframe of the first uplink component frequency band. The mobile station apparatus 5, when the radio resources of an audible reference signal and a physical uplink control channel signal have been set in the same uplink subframe in the first uplink component frequency band (Case #5 of the Figure 9) transmits only the physical uplink control channel signal without transmitting the audible reference signal.
A case will be described, in which a physical uplink control channel of the first format is fitted in the sonic reference signal subframe of the first uplink component frequency band. The mobile station apparatus 5, when the radio resources of an audible reference signal and a physical uplink control channel signal have been set in the same uplink subframe in the first uplink component frequency band (Case #6 of Figure 9), simultaneously transmits the audible reference signal and the physical uplink control channel signal.
In the following, a case will be described, in which the radio resources of an audible reference signal and a physical uplink control channel are set in a different uplink component frequency band, respectively. A case will be described, in which the physical uplink control channel of the first format is set in the sound reference signal subframe of the first uplink component frequency band. The mobile station apparatus 5, when the radio resource of a sound reference signal has been set in the same uplink subframe in the second uplink component frequency band, and the radio resource of a control channel signal If the physical uplink has been set in the first uplink component frequency band (Case #7 of Figure 9), it simultaneously transmits the audible reference signal and the physical uplink control channel signal. It should be noted that, the mobile station apparatus 5 having the remaining small transmit power capable of transmitting, based on an instruction from the base station apparatus 3, when the radio features an audible reference signal and a physical uplink control channel signal has been fitted into the same uplink subframe in a different uplink component frequency band, it only transmits the physical uplink control channel signal without transmitting the audible reference signal.
A case will be described, in which the physical uplink control channel of the second format is fitted in the sonic reference signal subframe of the first uplink component frequency band. The mobile station apparatus 5, when the radio resource of an audible reference signal has been set in the same uplink subframe in the second uplink component frequency band, and the radio resource of an uplink control channel signal has been set in the first uplink component frequency band (Case #8 of Figure 9), it simultaneously transmits the audible reference signal and the physical uplink control channel signal. It should be noted that, the mobile station apparatus 5, regardless of the remaining transmit power capable of transmitting, when the radio resources of an audible reference signal and a physical uplink control channel signal have been set in the same subframe of uplink with a different uplink component frequency band and the physical uplink control channel signal format is the second format, simultaneously transmits the audible reference signal and the physical uplink control channel signal.
It should be noted that, the radio resource of the physical uplink control channel signal for transmitting an acknowledgment response is allocated in the uplink subframe after a predetermined period, for example, after four downlink subframes from of the downlink subframe in which the physical downlink shared channel signal radio resource has been allocated. In the case of the radio capability of a physical uplink control channel signal for transmitting an acknowledgment response, which is different from the radio capability of a physical uplink control channel signal for transmitting a scheduling request , a periodic radio resource is not allocated from the base station apparatus 3 in advance, however, notification of a radio resource allocation result of the physical uplink control channel signal is provided for each downlink subframe. For example, the mobile station apparatus 5, having detected a physical downlink control channel addressed to its own apparatus which includes radio resource allocation information of a shared physical downlink channel, determined that the radio resource of a physical uplink control channel signal corresponding to the radio resource used for a physical downlink control channel signal was allocated, while when it did not detect a physical downlink control channel addressed to its own apparatus, the station apparatus mobile 5 determines that the radio resource of a physical uplink control channel signal has not been allocated. It should be noted that, a radio resource that can be used in a physical downlink control channel signal within a downlink system bandwidth and a radio resource that can be used in the downlink control channel signal. Physical uplink for transmission of an acknowledgment response within an uplink system bandwidth are associated with each other in advance, and the base station apparatus 3 and the mobile station apparatus 5 recognize this association.
As described above, the mobile station apparatus 5 of the present invention can suitably transmit an audible reference signal and a physical uplink control channel signal for transmitting an acknowledgment response. In the case where the physical uplink control channel signal format is the first format, the mobile station apparatus 5, when the radio resources of the sound reference signal and the physical uplink control channel signal have been adjusted in the same uplink component frequency band, performs the control in order to transmit only the physical uplink control channel signal without transmitting the audible reference signal. Thus, an orthogonal sequence having the same sequence length as the physical uplink control channel with respect to the different mobile station apparatus 5, in which a radio resource (an uplink resource block) of the same frequency domain If this physical uplink control channel is used, it can be used appropriately and orthogonalization between the physical uplink control channel signals can be performed reliably.
The mobile station apparatus 5, when the radio resources of an audible reference signal and a physical uplink control channel signal have been set in a different uplink component frequency band, respectively, performs the control to in order to simultaneously transmit the audible reference signal and the physical uplink control channel signal. In this way, the base station apparatus 3 can measure the uplink channel quality of an uplink component frequency band in which the sound reference signal has been transmitted, while reliably achieving orthogonalization between the signals of a channel. uplink control channel with respect to different mobile station apparatus 5, wherein a radio resource in the same frequency domain as this physical uplink control channel is used. Consequently, mobile station apparatus 5 can reliably transmit a receive result with respect to a physical downlink shared channel signal to base station apparatus 3, and base station apparatus 3 can suppress unnecessary retransmission and get efficient relay control. In addition, base station apparatus 3 can improve scheduling efficiency, adaptive modulation and transmit power control using measured uplink channel quality.
In the case where the format of a physical uplink control channel signal is the second format, the mobile station apparatus 5, when the radio resources of the sound reference signal and the physical uplink control channel signal have been set in the same uplink component frequency band, performs the control in order to simultaneously transmit the audible reference signal and the physical uplink control channel signal. In this way, the base station apparatus 3 can measure the uplink channel quality of an uplink component frequency band in which the sound reference signal has been transmitted, while reliably achieving orthogonalization between the signals of a channel. uplink control channel with respect to different mobile station apparatus 5, wherein a radio resource in the same frequency domain as this physical uplink control channel is used.
The mobile station apparatus 5, when the radio resources of an audible reference signal and a physical uplink control channel signal have been set in a different uplink component frequency band, respectively, performs the control to in order to simultaneously transmit the audible reference signal and the physical uplink control channel signal. In this way, the base station apparatus 3 can measure the uplink channel quality of an uplink component frequency band in which the sound reference signal has been transmitted, while reliably achieving orthogonalization between the signals of a channel. uplink control channel with respect to different mobile station apparatus 5, wherein a radio resource in the same frequency domain as this physical uplink control channel is used.
The mobile station apparatus 5 can reliably transmit a reception result regarding a physical downlink shared channel signal to the base station apparatus 3, while the base station apparatus 3 can suppress an unnecessary retransmission and obtain a efficient retransmission control, and improve scheduling efficiency, adaptive modulation and transmit power control using measured uplink channel quality. The mobile station apparatus 5 with the remaining small transmit power capable of transmission, wherein simultaneous transmission of the signals with different uplink component frequency bands is basically prohibited by the base station apparatus 3 when the first format is used for the physical uplink control channel signal and the radio resources of the audible reference signal and the physical uplink control channel signal have been set in a different uplink component frequency band, respectively, transmit only the signal uplink control channel without transmitting the audible reference signal due to transmission power restriction. In contrast, the mobile station apparatus 5, when the second format is used for the physical uplink control channel signal and the radio resources of the audible reference signal and the physical uplink control channel signal have been set to a different uplink component frequency band, respectively, can simultaneously transmit the audible reference signal and the physical uplink control channel signal in the same uplink subframe without worrying about restrictions on transmit power.
Consequently, the mobile station apparatus 5 with the remaining small transmit power capable of transmission when the physical uplink control channel signal format is the first format and the radio resources of the sonic reference signal and the channel signal uplink control channels have been set in a different uplink component frequency band, respectively, performs the control in order to transmit the physical uplink control channel signal without transmitting the audible reference signal, while when the format of the physical uplink control channel signal is the second format and the radio resources of the audible reference signal and the physical uplink control channel signal have been set in a different uplink component frequency band, respectively, the apparatus of the mobile station described above 5 performs the control in order to simultaneously transmit the audible reference signal and the control channel signal. physical uplink and thus a physical uplink control channel signal for transmitting an acknowledgment response and an audible reference signal may be appropriately transmitted in consideration of transmission power constraints.
It should be noted that the present invention is not limited to radio communication system 1 comprising the number of uplink component frequency bands that are used for the description in the embodiment described above. The present invention can also be applied to radio communication system 1 composed of a different number of uplink component frequency bands.
It should be noted that, in the above embodiment of the present invention, a case has been shown, where the radio resource of an audible reference signal is pre-set by the mobile station apparatus 5 using a physical downlink shared channel, however, the present invention can be applied also in a case where the allocation of the radio resource of a sound reference signal is performed using a physical downlink control channel for each subframe. The base station apparatus 3 determines whether or not the radio resource allocation of a sound reference signal is performed at the mobile station apparatus 5 for each downlink subframe, and whether it is determined that the radio resource allocation of a The audible reference signal is performed, the base station apparatus 3 transmits a physical downlink control channel which includes the information about radio resource allocation of a audible reference signal to the mobile station apparatus 5.
The mobile station apparatus 5 performs detection processing of a physical downlink control channel signal addressed to its own apparatus which includes radio resource allocation of an audible reference signal, for each downlink subframe, and when the physical downlink control channel signal addressed to its own apparatus which includes the radio resource allocation of an audible reference signal has been detected, the mobile station apparatus 5 recognizes that the radio resource of the audible reference signal has been allocated in an uplink subframe that corresponds to the downlink subframe, in which the physical downlink control channel signal has been detected, for example, in an uplink subframe that corresponds to the fourth downlink subframe after the downlink subframe in which the physical downlink control channel signal was detected, or in the temporarily nearest sound reference signal subframe after a predetermined period from of the downlink subframe in which the physical downlink control channel signal was detected, or in a predetermined audible reference signal subframe, when the radio resource of a physical uplink control channel signal was allocated in the same subframe of uplink as the uplink subframe in which the radio resource of a sound reference signal has been allocated, the mobile station apparatus 5, according to whether each radio resource has been set in the same uplink component frequency band or each resource radio has been set in a different uplink component frequency band, controls the transmission processing of an audible reference signal and a physical uplink control channel signal.
Here, the format of a physical downlink control channel signal that includes the radio resource allocation information of an audible reference signal may differ from the format of a physical downlink control channel signal that includes other information, or the same format can be applied. When the same format is applied, the mobile station apparatus 5 modifies the interpretation of a different information field according to an information field value or a part of the format, and determines whether a physical downlink control channel signal includes radio resource allocation information of an audible reference signal or includes other information. Furthermore, a single physical downlink control channel may include the radio resource allocation information of an audible reference signal of the single mobile station apparatus 5, or may include the radio resource allocation information of a sound reference signal from a plurality of mobile station apparatus 5. Furthermore, the mobile station apparatus 5 is not limited to a mobile terminal, and the present invention can be realized, for example, by implementing the function of the mobile station apparatus. mobile station 5 on a fixed terminal.
The procedure characteristic of the present invention described above can also be carried out by implementing the function in an integrated circuit and controlling it. That is, an integrated circuit of the present invention is an integrated circuit that causes the mobile station apparatus 5 to perform a plurality of functions when mounted on the mobile station apparatus 5, the integrated circuit that causes the mobile station apparatus performs a series of functions including the functions of: transmitting a signal to a base station apparatus 3 using one or more component frequency bands each having a predetermined frequency bandwidth; adjusting a radio resource of a reference signal to measure channel quality and a radio resource of a physical uplink control channel; control a signal transmission processing that depends on whether each radio resource has been tuned to the same component frequency band or each radio resource has been tuned to a different band, by transmitting the physical uplink control channel signal in one frame the time at which the radio feature of the reference signal was set; and transmitting the reference signal and/or physical uplink control channel signal based on controlling the signal transmission processing.
In this way, the mobile station apparatus 5 using the integrated circuit of the present invention, when the radio resources of an audible reference signal and a physical uplink control channel signal have been adjusted in the same uplink subframe, in accordance with with whether each radio resource has been tuned to the same uplink component frequency band or each radio resource has been tuned to a different uplink component frequency band, controls the signal and audible reference signal transmission processing of physical uplink control channel. In this way, the mobile station apparatus 5 can properly transmit the sound reference signal and the physical uplink control channel signal.
A program operating in the mobile station apparatus 5 and the base station apparatus 3, in accordance with the present invention, is a program (a program that makes a computer work) that controls a CPU, and the like, in order to perform the functions of the modality described above in accordance with the present invention. Then, the information manipulated in this device and the device is temporarily stored in a RAM during the information processing and then is stored in various ROMs or HDD, and is read, modified and/or written by the CPU as required. As the recording medium that stores the program, any of a semiconductor medium (eg, ROM, a non-volatile memory card, etc.), an optical recording medium (eg, DVD, MO, MD, CD, BD, etc.), and a magnetic recording medium (eg a magnetic tape, a floppy disk, etc.) can be employed. Furthermore, not only the functions of the modality described above can be performed by executing a loaded program, but also the functions of the present invention can be performed by processing in conjunction with an operating system or other application programs, in accordance with a program instruction.
Furthermore, when circulating the program on the market, the program can be stored on a portable recording medium and circulated, or the program can be transferred to a server computer coupled through a network such as the Internet. In this case, a server computer storage device is also within the scope of the present invention. Furthermore, a part or all of the mobile station apparatus 5 and the base station apparatus 3 in the embodiment described above can be realized as an LSI which is typically an integrated circuit. Each functional block of the mobile station apparatus 5 and the base station apparatus 3 can be individually formed on a chip, or a part or all of can be integrated and formed on a chip. Furthermore, the integration approach is not limited to an LSI, but can be performed by an application-specific circuit or a general-purpose processor. Furthermore, if an integration technology that replaces LSI emerges due to an advance in semiconductor technologies, an integrated circuit using this technique can be used.
The modality of the present invention has been described in detail with reference to the attached drawings, however, the specific configuration is not limited to this modality, and the design, and the like, which do not depart from the scope of the present invention are also within the scope of the claims. Description of Numerical References
3 base station apparatus (AC) mobile station apparatus 101 receive processing unit 103 radio resource control unit 105 control unit 107 transmit processing unit 109 receive antenna 111 transmit antenna 201 physical downlink shared channel 203 physical downlink control channel processing unit 205 downlink pilot channel processing unit 207 multiplexing unit 209 IFFT unit 211 insertion unit Gl 213 D/A unit 215 RF transmission unit 219 unit turbo coding 221 data modulation unit 223 convolutional coding unit 225 QPSK modulation unit 301 RF receiving unit 303 A/D unit 305 component frequency band separation unit 307 receive processing unit for each frequency band of uplink component 309 symbol timing detection unit 311 removal unit Gl 31 3 FFT unit 315 subcarrier demapping unit 317 channel estimation unit 319 channel equalization unit (for physical uplink shared channels) 321 channel equalization unit (for physical uplink control channels) 323 unit IDFT 325 unit of data demodulation 327 turbo decoding unit 329 physical uplink control channel detection unit 331 uplink link channel quality measuring unit 401 receive processing unit 403 radio resource control unit 405 control unit 407 unit transmission processing unit 409 receiving antenna 501 RF receiving unit 503 A/D unit 505 symbol timing detection unit 507 Gl removal unit 509 FFT unit 511 demultiplexing unit 513 channel estimating unit 515 measuring unit downlink link channel quality 516 channel compensation unit (for physical downlink shared channels) 517 uni physical downlink shared channel decoding unit 519 channel compensation unit (for physical downlink control channels) 521 physical downlink control channel decoding unit 523 data demodulation unit 525 turbo decoding unit 527 demodulation unit QPSK 529 VITERB decode unit 601 transmission processing unit for each uplink component frequency band 603 component frequency band combination unit 605 D/A unit 607 RF transmission unit 611 turbo coding unit 613 unit data modulation unit 615 DFT unit 617 uplink pilot channel processing unit 619 physical uplink control channel processing unit 621 subcarrier mapping unit 623 IFFT unit 624 multiplication unit 625 insertion unit GL 4051 transmission control unit simultaneous

权利要求:
Claims (7)
[0001]
1. Mobile station apparatus (5) comprising: a transmission processing unit (407) configured to transmit at least one signal using one or more component frequency bands each having a predetermined frequency bandwidth, the mobile station apparatus (5) being characterized in that the transmission processing unit (407) is configured for: when transmitting an SRS (sound reference signal) for a first component frequency band and transmitting a PUCCH (physical uplink control channel) for a second component frequency band are set in the same subframe, determine, based on a PUCCH format: to transmit only the PUCCH of a first format, without transmitting the SRS, or the simultaneous transmission of the PUCCH and the SRS of a second format, the first format being a format based on an orthogonal sequence with a sequence length of 4 to the second partition of the subquad ro and the second format being a format based on an orthogonal sequence with a sequence length of 3 for the second partition of the subframe, where when the subframe is an SRS subframe of a second component frequency band for which transmission of the PUCCH is set, the transmit processing unit (407) is configured to transmit only the PUCCH of the first format without transmitting the SRS, and simultaneously transmit the PUCCH of the second format and the SRS, and if the subframe is not the SRS subframe , the transmission processing unit (407) is configured to transmit only the PUCCH of the first format without transmitting the SRS, the PUCCH being a PUCCH used for a scheduling request or for transmitting an acknowledgment response. .
[0002]
Mobile station apparatus (5) according to claim 1, wherein in the first format, all SC-FDMA symbols of a subframe are used, and wherein in the second format, SC-FDMA symbols that excluding the last SC-FDMA symbol from the subframe are used.
[0003]
3. Communication method for a mobile station apparatus (5) configured to communicate with a mobile station apparatus (3), the communication method comprising: transmitting at least one signal using one or more component frequency bands comprising a predetermined frequency bandwidth, the method being characterized in that transmitting at least one signal comprises: when transmitting an SRS (sound reference signal) for a first component frequency band and transmitting a PUCCH (physical uplink control channel) for a second component frequency band are set in the same subframe, determine, based on a PUCCH format: the transmission of only the PUCCH of a first format, without transmitting the SRS, or the simultaneous transmission of the PUCCH and the SRS of a second format, where the first format being a format based on an orthogonal sequence with a sequence length of 4 to the second partition. tion of the subframe and the second format being a format based on an orthogonal sequence with a sequence length of 3 for the second partition of the subframe, when the subframe is an SRS subframe of a second component frequency band for which the transmission of the PUCCH is set to transmit only the PUCCH of the first format without transmitting the SRS if the subframe is not the SRS subframe, the PUCCH being a PUCCH used for a scheduling request or for transmitting an acknowledgment response.
[0004]
Communication method according to claim 3, wherein in the first format, all SC-FDMA symbols of a subframe are used, and wherein in the second format, SC-FDMA symbols that exclude the last SC-symbol are used. Subframe FDMA are used.
[0005]
5. Integrated circuit to be mounted in a mobile station apparatus (5) to perform at least the functions of: transmitting a signal using one or more component frequency bands each having a predetermined frequency bandwidth; the integrated circuit being characterized by the fact that transmitting at least one signal comprises: when transmitting an SRS (sound reference signal) for a first component frequency band and transmitting a PUCCH (physical uplink control channel) for a second component frequency band are set in the same subframe, determine, based on a PUCCH format: the transmission of only the PUCCH of a first format, without transmitting the SRS, or the simultaneous transmission of the PUCCH and the SRS of a second format, where the first format being a format based on an orthogonal sequence with a sequence length of 4 for the second subframe partition and the second format being a format based on an orthogonal sequence with a sequence length of 3 for the second subframe partition, when the subframe is an SRS subframe of a second component frequency band for which PUCCH transmission is adjusted, transmit only but the PUCCH of the first format without transmitting the SRS if the subframe is not the SRS subframe, the PUCCH being a PUCCH used for a scheduling request or for transmitting an acknowledgment response.
[0006]
The integrated circuit of claim 5, wherein: in the first format, all SC-FDMA symbols of a subframe are used, and wherein in the second format, SC-FDMA symbols that exclude the last SC-symbol are used. Subframe FDMA are used.
[0007]
7. Radio communication system comprising: at least one mobile station apparatus (5); and a base station apparatus (3) configured to carry out transmission/reception of a signal using one or more component frequency bands each having a predetermined frequency bandwidth, the system being characterized in that that: the base station apparatus (3) is configured to receive a signal transmitted from the mobile station apparatus (5), wherein the mobile station apparatus (5) is configured to, when transmitting an SRS ( sound reference signal) and the transmission of a PUCCH (physical uplink control channel) are set in the same subframe in a different component frequency band, determine, based on a PUCCH format: the transmission of only the PUCCH of a first format, without transmitting the SRS, or simultaneous transmission of the PUCCH and the SRS of a second format, where the first format being a format based on an orthogonal sequence with a sequence length of 4 to the second partition of the subframe and the second format being a format based on an orthogonal sequence with a sequence length of 3 for the second partition of the subframe, when the subframe is an SRS subframe of a second component frequency band for which the transmission of the PUCCH is adjusted, whereby when the subframe is an SRS subframe of a second component frequency band for which the PUCCH transmission is adjusted, the mobile station apparatus (5) is configured to transmit only the PUCCH of the first format without transmitting the SRS, and simultaneously transmitting the PUCCH of the second format and the SRS, and if the subframe is not the SRS subframe, the mobile station apparatus (5) is configured to transmit only the PUCCH of the first format without transmitting the SRS, where the PUCCH is a PUCCH used for a scheduling request or for transmitting a reception acknowledgment response.

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法律状态:
2019-01-08| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|

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2020-02-04| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|

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2020-02-27| B15K| Others concerning applications: alteration of classification|Free format text: AS CLASSIFICACOES ANTERIORES ERAM: H04W 72/02 , H04J 11/00 , H04W 72/04 Ipc: H04L 5/00 (2006.01), H04W 72/04 (2009.01) |

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2021-06-01| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|

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2021-07-13| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 16/12/2010, OBSERVADAS AS CONDICOES LEGAIS. PATENTE CONCEDIDA CONFORME ADI 5.529/DF, QUE DETERMINA A ALTERACAO DO PRAZO DE CONCESSAO. |

优先权:

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申请号 | 申请日 | 专利标题

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JP2010028715A|JP4913221B2|2010-02-12|2010-02-12|Mobile station apparatus, communication method, integrated circuit, radio communication system, and control program|

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JP2010-028715|2010-02-12|

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PCT/JP2010/072662|WO2011099225A1|2010-02-12|2010-12-16|Mobile station apparatus, communication method, integrated circuit, wireless communication system and control program|

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