JP2011244397A - Mobile communication system, base station device, mobile station device, and communication method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mobile communication system and communication method in which a base station device can efficiently perform downlink scheduling.SOLUTION: The present invention relates to a mobile communication system in which communication is performed between a base station device 100 and a mobile station device 200 using a plurality of component carriers. The base station device 100 sets a specific downlink component carrier to the mobile station device 200, and notifies a downlink control information format containing a transmission instruction of channel state information to the mobile station device 200 and in the case where PUSCH resources in an uplink component carrier corresponding to the specific downlink component carrier are allocated, the mobile station device 200 transmits the channel state information to the base station device 100 by disposing it in the PUSCH resources in the uplink component carrier corresponding to the specific downlink component carrier.

Description

  The present invention relates to a mobile communication system and a communication method including a base station device and a mobile station device.

  The 3rd Generation Partnership Project (3GPP) examines and creates specifications for mobile communication systems based on networks developed from W-CDMA (Wideband-Code Division Multiple Access) and GSM (Global System for Mobile Communications). It is a project. In 3GPP, the W-CDMA system is standardized as a third generation cellular mobile communication system, and services are started sequentially. In addition, HSDPA (High-speed Downlink Packet Access), which further increases the communication speed, has been standardized and a service has been started. In 3GPP, the evolution of the third generation radio access technology (hereinafter referred to as “LTE (Long Term Evolution)” or “EUTRA (Evolved Universal Terrestrial Radio Access)”) and a wider frequency band, Further, studies on mobile communication systems (hereinafter referred to as “LTE-A (Long Term Evolution-Advanced)” or “Advanced-EUTRA”) that realize high-speed data transmission / reception are in progress.

  As communication systems in LTE, OFDMA (Orthogonal Frequency Division Multiple Access) system that performs user multiplexing using mutually orthogonal subcarriers and SC-FDMA (Single Carrier-Frequency Division Multiple Access) system are being studied. . That is, an OFDMA scheme that is a multicarrier communication scheme is proposed for the downlink, and an SC-FDMA scheme that is a single carrier communication scheme is proposed for the uplink.

On the other hand, as a communication method in LTE-A, OFDMA method is used for downlink, and in addition to SC-FDMA method for uplink, Clustered DFT-S-OFDM (Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing, DFT-s -OFDM with Spectrum Division Control, DFT-precoded OFDM,
The introduction of systems (also called Clustered FDMA and DFT-S-OFDM) is under consideration. Here, in LTE and LTE-A, the SC-FDMA scheme and the Clustered DFT-S-OFDM scheme, which have been proposed as uplink communication schemes, are based on the characteristics of a single carrier communication scheme and similar communication schemes (single carrier The characteristic is that PAPR (Peak to Average Power Ratio: transmission power) when transmitting data (information) can be kept low.

  In LTE-A, a frequency band used in a general mobile communication system is continuous, whereas a plurality of continuous and / or discontinuous frequency bands (hereinafter referred to as “component carrier, element carrier (CC: Component Carrier)”). Carrier) ”or“ carrier component ”(referred to as a carrier component (CC)) and is used as one frequency band (wideband frequency band) (frequency band aggregation: Carrier aggregation, (Also referred to as Spectrum aggregation, Frequency aggregation, etc.) is being studied. Furthermore, in order for the base station apparatus and the mobile station apparatus to communicate using a wide frequency band more flexibly, the frequency band used for downlink communication and the frequency band used for uplink communication are different. It has also been proposed to use a frequency bandwidth (Asymmetric carrier aggregation) (Non-patent Document 1).

  FIG. 7 is a diagram for explaining a mobile communication system in which frequency bands are aggregated in the prior art. The frequency band used for downlink (DL) communication and the frequency band used for uplink (UL) communication as shown in FIG. It is also called aggregation (Symmetric carrier aggregation). As shown in FIG. 7, the base station apparatus and the mobile station apparatus can use a wide band composed of a plurality of component carriers by using a plurality of component carriers that are continuous and / or discontinuous frequency bands. Communication can be performed in the frequency band. In FIG. 7, as an example, five frequency bands (hereinafter also referred to as DL system band and DL system bandwidth) used for downlink communication having a bandwidth of 100 MHz have five bandwidths of 20 MHz. It shows that it is configured by downlink component carriers (DCC1: Downlink Component Carrier1, DCC2, DCC3, DCC4, DCC5). Further, as an example, the frequency band used for uplink communication with a bandwidth of 100 MHz (hereinafter also referred to as UL system band or UL system bandwidth) has five uplinks with a bandwidth of 20 MHz. It shows that it is configured by component carriers (UCC1: Uplink Component Carrier1, UCC2, UCC3, UCC4, UCC5).

  In FIG. 7, each downlink component carrier has a downlink channel such as a physical downlink control channel (hereinafter referred to as PDCCH: Physical Downlink Control Channel) and a physical downlink shared channel (hereinafter referred to as PDSCH: Physical Downlink Shared Channel). Be placed. The base station apparatus transmits control information (resource allocation information, MCS (Modulation and Coding Scheme) information, HARQ (Hybrid automatic retransmission request) for transmitting a downlink transport block transmitted using PDSCH. : Hybrid Automatic Repeat Request) processing information etc.) is allocated to the mobile station apparatus using the PDCCH, and the downlink transport block is transmitted to the mobile station apparatus using the PDSCH. That is, in FIG. 7, the base station apparatus can transmit up to five downlink transport blocks (or PDSCH) to the mobile station apparatus in the same subframe.

  Each uplink component carrier is provided with an uplink channel such as a physical uplink control channel (hereinafter referred to as PUCCH) or a physical uplink shared channel (hereinafter referred to as PUSCH). The The mobile station apparatus uses PUCCH and / or PUSCH to perform channel state information (CSI: Channel Statement Information or Channel Statistical Information) and ACK / NACK (Acknowledgement: Positive Acknowledgement / Negative) in HARQ for the downlink transport block. Response: Information indicating Negative Acknowledgment, ACK or NACK) and uplink control information (UCI) such as scheduling request (SR) are transmitted to the base station apparatus. In FIG. 7, the mobile station apparatus can transmit up to five uplink transport blocks (or PUSCH) to the base station apparatus in the same subframe.

  Here, the channel state information indicates information indicating the channel quality for the downlink signal transmitted from the mobile station apparatus to the base station apparatus. The mobile station apparatus is based on base station apparatus specific reference signals (CSI-RS (Reference Signal), CRS (Cell-specific RS), cell specific reference signal, feedback information measurement reference signal) transmitted from the base station apparatus. The channel quality for the downlink signal is measured (calculated and generated), and transmitted (reported and fed back) to the base station apparatus as channel state information. Here, the reference signal is a signal (information) known to the base station apparatus and the mobile station apparatus. Information indicating the channel state for the downlink signal transmitted from the mobile station device to the base station device includes channel state information (CSI), channel quality identifier (CQI), precoding matrix identifier (PMI: Precoding Matrix Indicator) and rank identifier (RI: Rank Indicator) are included.

  Here, PMI and RI are used for communication in which the base station apparatus and the mobile station apparatus perform precoding processing by SDM (Space Division Multiplexing) using MIMO (Multiple Input Multiple Output) or the base station apparatus. Is done. Moreover, you may utilize when performing communication by transmission diversity systems, such as SFBC (Space Frequency Block Coding) and CDD (Cyclic Delay Diversity). MIMO is a general term for a multi-input / multi-output system or technology. The base station apparatus and mobile station apparatus use multiple antennas on the transmitting side and the receiving side, and make the number of input / output branches multiple. To transmit. Here, a unit of a signal sequence that can be transmitted by spatial multiplexing using MIMO is called a stream, and the number of streams (Rank: rank) is determined by the base station apparatus in consideration of a channel state. At this time, the number of streams (Rank) required by the mobile station apparatus is transmitted as RI from the mobile station apparatus to the base station apparatus.

  Also, when using SDM in the downlink, in order to correctly separate or facilitate separation of information of a plurality of streams transmitted from each antenna, preprocessing is performed on the transmission signal sequence in advance (this Is referred to as “pre-recording”). Information regarding this precoding can be measured (calculated and generated) based on the channel state estimated by the mobile station apparatus, and is transmitted as PMI from the mobile station apparatus to the base station apparatus.

  Similarly, FIG. 8 is a diagram for explaining a mobile communication system in which asymmetric frequency bands are aggregated in the prior art. As shown in FIG. 8, the base station apparatus and the mobile station apparatus have different frequency bands used for downlink communication and frequency bands used for uplink communication, and configure these frequency bands. Therefore, it is possible to perform communication in a wide frequency band by using component carriers that are continuous and / or discontinuous frequency bands in combination. In FIG. 8, as an example, five downlink component carriers (DCC1, DCC2, DCC3, DCC4, DCC5) having a frequency band of 20 MHz are used for downlink communication having a bandwidth of 100 MHz. And the frequency band used for uplink communication having a bandwidth of 40 MHz is configured by two uplink component carriers (UCC1, UCC2) having a bandwidth of 20 MHz. Show.

  Here, in FIG. 8, downlink / uplink channels are allocated to the downlink / uplink component carriers, respectively, and the base station apparatus allocates PDSCH to the mobile station apparatus using PDCCH and uses PDSCH. Then, the downlink transport block is transmitted to the mobile station apparatus. That is, in FIG. 8, the base station apparatus can transmit up to five downlink transport blocks (or PDSCH) to the mobile station apparatus in the same subframe.

  Also, the mobile station apparatus uses PUCCH and / or PUSCH to transmit channel state information, information indicating ACK / NACK in HARQ for the downlink transport block, and uplink control information such as a scheduling request to the base station apparatus. Send to. In FIG. 8, the mobile station apparatus can transmit up to two uplink transport blocks (or PUSCH) to the base station apparatus in the same subframe.

  FIG. 9 is a diagram illustrating an example of transmission of channel state information from a mobile station apparatus to a base station apparatus in the prior art. The base station apparatus (901) instructs the mobile station apparatus (902) to use which radio resource (radio resource block) to transmit the uplink signal (904) including the channel state information. The base station apparatus specific reference signal (903) is transmitted. The mobile station apparatus transmits channel state information to the base station apparatus using the radio resource instructed by the base station apparatus. In FIG. 9, for example, the mobile station apparatus arranges an uplink signal including periodic channel state information (P-CSI: Periodic CSI) in the PUCCH resource allocated by the base station apparatus, and sends the uplink signal to the base station apparatus. Send. Also, for example, the mobile station apparatus arranges an uplink signal including aperiodic channel state information (A-CSI: Aperiodic CSI) in the PUSCH resource allocated by the base station apparatus, and transmits the uplink signal to the base station apparatus. (Non-Patent Document 2).

"Carrier aggregation in LTE-Advanced", 3GPP TSG RAN WG1 Meeting # 53bis, R1-082464, June 30-July 4, 2008. "3GPP TSG RAN E-UTRA Physical layer procedure (Release 8)", 3GPP TS 36.213 V8.8.0, 2009-09.

  However, in the conventional technology, when the base station apparatus and the mobile station apparatus perform communication using a plurality of component carriers in combination, the mobile station apparatus transmits the aperiodic channel state information to the base station apparatus. The transmission method when sending was not clarified. For example, it has not been clarified in which uplink component carrier the mobile station apparatus transmits the aperiodic channel state information to the base station apparatus. The base station apparatus can efficiently perform downlink scheduling based on channel state information transmitted from the mobile station apparatus.

  That is, in the conventional technology, since the transmission method when the mobile station apparatus transmits aperiodic channel state information to the base station apparatus is not clarified, the base station apparatus efficiently performs downlink scheduling. There was a problem that it was not possible to do it.

  The present invention has been made in view of such circumstances, and when a base station apparatus and a mobile station apparatus perform communication using a plurality of component carriers in combination, the base station apparatus A mobile communication system and a communication method that can efficiently perform scheduling of the above are provided.

  (1) In order to achieve the above object, the present invention takes the following measures. That is, the mobile communication system of the present invention is a mobile communication system in which a base station apparatus and a mobile station apparatus communicate with each other using a plurality of component carriers, and the base station apparatus transmits a specific downlink component carrier. The mobile station apparatus sets the downlink control information format including a channel state information transmission instruction to the mobile station apparatus, and the mobile station apparatus transmits an uplink component corresponding to the specific downlink component carrier. When a PUSCH resource in a carrier is allocated, an uplink other than an uplink component carrier corresponding to the specific downlink component carrier is determined by the downlink control information format including the transmission instruction of the channel state information. Linkco Even if a PUSCH resource in a component carrier is allocated, the channel state information is arranged in a PUSCH resource in an uplink component carrier corresponding to the certain downlink component carrier and transmitted to the base station apparatus. It is characterized by.

  (2) A mobile communication system in which a base station apparatus and a mobile station apparatus communicate with each other using a plurality of component carriers, and the base station apparatus sends a specific downlink component carrier to the mobile station apparatus. Set, transmit RRC signaling including a periodic channel state information transmission instruction to the mobile station apparatus, and notify the mobile station apparatus of a downlink control information format including an aperiodic channel state information transmission instruction. The mobile station apparatus transmits an uplink corresponding to the specific downlink component carrier when the transmission of the periodic channel state information and the transmission of the aperiodic channel state information occur in the same subframe. If PUSCH resources are allocated in the link component carrier, even if the aperiodic Even if a PUSCH resource in an uplink component carrier other than an uplink component carrier corresponding to the certain downlink component carrier is allocated by the downlink control information format including a transmission instruction of channel state information, the period Both the normal channel state information and the non-periodic channel state information are arranged in a PUSCH resource in an uplink component carrier corresponding to the specific downlink component carrier, and are transmitted to the base station apparatus. It is said.

  (3) A base station apparatus in a mobile communication system in which a base station apparatus and a mobile station apparatus communicate using a plurality of component carriers, and sets a specific downlink component carrier in the mobile station apparatus. Means, a means for notifying the mobile station apparatus of a downlink control information format including an instruction to transmit channel state information, and a PUSCH resource in an uplink component carrier corresponding to the specific downlink component carrier. For example, a PU in an uplink component carrier other than an uplink component carrier corresponding to the certain downlink component carrier, according to the downlink control information format including a transmission instruction of the channel state information. Means for allocating the channel state information to a PUSCH resource in an uplink component carrier corresponding to the specific downlink component carrier and receiving the channel state information from the mobile station apparatus even if a CH resource is allocated. It is characterized by that.

  (4) Moreover, it is a base station apparatus in a mobile communication system in which a base station apparatus and a mobile station apparatus communicate with each other using a plurality of component carriers, and sets a specific downlink component carrier in the mobile station apparatus Means for transmitting RRC signaling including a transmission instruction for periodic channel state information to the mobile station apparatus, and a downlink control information format including a transmission instruction for non-periodic channel state information to the mobile station apparatus. A means for notifying, and in the mobile station apparatus, when the transmission of the periodic channel state information and the transmission of the aperiodic channel state information occur in the same subframe, the certain downlink component carrier When PUSCH resources are allocated in uplink component carriers corresponding to Even if the PUSCH resource in the uplink component carrier other than the uplink component carrier corresponding to the certain downlink component carrier is determined by the downlink control information format including the transmission instruction of the aperiodic channel state information, Even if the allocation is performed, both the periodic channel state information and the aperiodic channel state information are arranged in a PUSCH resource in an uplink component carrier corresponding to the certain downlink component carrier, and the movement is performed. And means for receiving from the station apparatus.

  (5) A mobile station apparatus in a mobile communication system in which a base station apparatus and a mobile station apparatus communicate with each other using a plurality of component carriers, and a specific downlink component carrier is set by the base station apparatus. Means for notifying a downlink control information format including a channel state information transmission instruction by the base station apparatus, and PUSCH resources in an uplink component carrier corresponding to the certain downlink component carrier are allocated. The uplink component carrier other than the uplink component carrier corresponding to the certain downlink component carrier by the downlink control information format including the transmission instruction of the channel state information. Means for allocating the channel state information to a PUSCH resource in an uplink component carrier corresponding to the certain downlink component carrier, and transmitting the channel state information to the base station apparatus even if a PUSCH resource in the carrier is allocated It is characterized by providing.

  (6) A mobile station apparatus in a mobile communication system in which a base station apparatus and a mobile station apparatus communicate with each other using a plurality of component carriers, and a specific downlink component carrier is set by the base station apparatus. Means for transmitting RRC signaling including a transmission instruction for periodic channel state information by the base station apparatus, and a downlink control information format including a transmission instruction for aperiodic channel state information. The means notified by the apparatus, and the transmission of the periodic channel state information and the transmission of the aperiodic channel state information correspond to the specific downlink component carrier when they occur in the same subframe. Assigned PUSCH resource in uplink component carrier In other words, the PUSCH in an uplink component carrier other than an uplink component carrier corresponding to the certain downlink component carrier, for example, according to the downlink control information format including a transmission instruction of the aperiodic channel state information. Even if resources are allocated, both the periodic channel state information and the aperiodic channel state information are arranged in the PUSCH resource in the uplink component carrier corresponding to the certain downlink component carrier. And means for transmitting to the base station apparatus.

  (7) Further, a communication method of a base station apparatus in a mobile communication system in which a base station apparatus and a mobile station apparatus communicate with each other using a plurality of component carriers, and a certain downlink component carrier is assigned to the mobile station apparatus When the mobile station apparatus is notified of a downlink control information format including a transmission instruction of channel state information, and PUSCH resources in an uplink component carrier corresponding to the certain downlink component carrier are allocated. Is a PUSCH in an uplink component carrier other than an uplink component carrier corresponding to the certain downlink component carrier, according to the downlink control information format including the transmission instruction of the channel state information. Even though assigned to a source, the channel state information, place the PUSCH resource in the uplink component carrier corresponding to the certain downlink component carrier is characterized by receiving from the mobile station apparatus.

  (8) Further, a communication method of a base station apparatus in a mobile communication system in which a base station apparatus and a mobile station apparatus communicate with each other using a plurality of component carriers, and a certain downlink component carrier is assigned to the mobile station apparatus RRC signaling including a periodic channel state information transmission instruction is transmitted to the mobile station apparatus, and a downlink control information format including an aperiodic channel state information transmission instruction is notified to the mobile station apparatus. In the mobile station apparatus, when the transmission of the periodic channel state information and the transmission of the aperiodic channel state information occur in the same subframe, they correspond to the specific downlink component carrier. When allocating PUSCH resources in the uplink component carrier, The PUSCH resource in the uplink component carrier other than the uplink component carrier corresponding to the specific downlink component carrier is allocated by the downlink control information format including the transmission instruction of the aperiodic channel state information. In addition, both the periodic channel state information and the aperiodic channel state information are arranged in a PUSCH resource in an uplink component carrier corresponding to the certain downlink component carrier and received from the mobile station apparatus. It is characterized by doing.

  (9) A communication method for a mobile station apparatus in a mobile communication system in which a base station apparatus and a mobile station apparatus communicate with each other using a plurality of component carriers, wherein a specific downlink component carrier is assigned to the base station apparatus When the base station apparatus is notified of a downlink control information format including a channel state information transmission instruction, and a PUSCH resource in an uplink component carrier corresponding to the certain downlink component carrier is allocated. For example, an uplink component carrier other than an uplink component carrier corresponding to the specific downlink component carrier may be used according to the downlink control information format including a transmission instruction of the channel state information. Even if the PUSCH resource in is allocated, the channel state information is arranged in the PUSCH resource in the uplink component carrier corresponding to the specific downlink component carrier, and is transmitted to the base station apparatus. It is said.

  (10) Further, a communication method of a mobile station apparatus in a mobile communication system in which a base station apparatus and a mobile station apparatus communicate with each other using a plurality of component carriers, and a certain downlink component carrier is assigned to the base station apparatus RRC signaling including a periodic channel state information transmission instruction is transmitted by the base station apparatus, and a downlink control information format including an aperiodic channel state information transmission instruction is notified by the base station apparatus. When the transmission of the periodic channel state information and the transmission of the aperiodic channel state information occur in the same subframe, the PUSCH in the uplink component carrier corresponding to the specific downlink component carrier If you are assigned resources, However, PUSCH resources in uplink component carriers other than the uplink component carrier corresponding to the certain downlink component carrier are allocated according to the downlink control information format including the transmission instruction of the aperiodic channel state information. Even if the periodic channel state information and the aperiodic channel state information are both arranged in a PUSCH resource in an uplink component carrier corresponding to the certain downlink component carrier, It is characterized by transmitting to a station device.

  ADVANTAGE OF THE INVENTION According to this invention, when a base station apparatus and a mobile station apparatus communicate using a some component carrier compoundly, the base station apparatus can perform the scheduling of a downlink efficiently.

It is a figure which shows notionally the structure of the physical channel which concerns on embodiment of this invention. It is a block diagram which shows schematic structure of the base station apparatus which concerns on embodiment of this invention. It is a block diagram which shows schematic structure of the mobile station apparatus which concerns on embodiment of this invention. It is a figure which shows the example of the mobile communication system which can apply embodiment of this invention. It is a figure which shows the example of arrangement | positioning of the information by a mobile station apparatus. It is a figure which shows another example of arrangement | positioning of the information by a mobile station apparatus. It is a figure which shows the example of the frequency band aggregation in a prior art. It is a figure which shows the example of asymmetric frequency band aggregation in a prior art. It is a figure which shows the example of transmission of the channel state information in a prior art.

  Next, embodiments according to the present invention will be described with reference to the drawings. FIG. 1 is a diagram illustrating a configuration example of a channel according to an embodiment of the present invention. The downlink physical channel includes a physical downlink control channel (PDCCH) and a physical downlink shared channel (PDSCH). The uplink physical channel includes a physical uplink shared channel (PUSCH) and a physical uplink control channel (PUCCH).

  The PDCCH is a channel used for notifying (designating) the mobile station apparatus 200 of PDSCH resource allocation, HARQ processing information for downlink data, PUSCH resource allocation, and the like. The PDDCH is composed of a plurality of control channel elements (CCEs), and the mobile station apparatus 200 receives the PDCCH from the base station apparatus 100 by detecting the PDCCH composed of CCEs. This CCE is composed of a plurality of resource element groups (REG: Resource Element Group, also called mini-CCE) distributed in the frequency and time domains. Here, the resource element is a unit resource composed of one OFDM symbol (time component) and one subcarrier (frequency component).

  Also, the PDCCH is encoded (Separate Coding) separately for each mobile station apparatus 200 and for each type. That is, the mobile station apparatus 200 detects a plurality of PDCCHs, and acquires downlink resource allocation, uplink resource allocation, and other control information. Each PDCCH is assigned a CRC (Cyclic Redundancy Check) code unique to the mobile station apparatus 200, and the mobile station apparatus 200 assigns each PCECH to which each PDCCH may be configured. On the other hand, the CRC code is detected, and the PDCCH in which the CRC code is successfully detected is acquired as the PDCCH addressed to the own apparatus. This is also referred to as blind decoding, and the range of CCE sets in which the PDCCH in which the mobile station apparatus 200 performs blind decoding may be configured is referred to as a search space (Search Space). The That is, the mobile station apparatus 200 performs blind decoding on the CCE in the search area and detects the PDCCH addressed to itself.

  When the PDCCH addressed to the mobile station apparatus 200 includes PDSCH resource allocation, the mobile station apparatus 200 uses the PDSCH in accordance with the resource allocation instructed by the PDCCH from the base station apparatus 100 and uses the downlink signal (downlink). Link data (transport block for downlink shared channel (DL-SCH)) and / or downlink control data (downlink control information) and / or downlink reference signal (DRS: Downlink Reference Signal, base station apparatus specific reference signal) And a mobile station apparatus specific reference signal (including a data demodulation reference signal, DMRS: Demodulation RS)). That is, this PDCCH can also be said to be a signal for performing resource allocation for the downlink (hereinafter also referred to as “downlink transmission permission signal” or “downlink grant”).

  In addition, when the PDCCH addressed to the mobile station apparatus 200 includes PUSCH resource allocation, the mobile station apparatus 200 uses the PUSCH according to the resource allocation instructed by the PDCCH from the base station apparatus 100, and uses the uplink signal. (Uplink data (transport block for uplink shared channel (UL-SCH)) and / or uplink control data (uplink control information) and / or uplink reference signal (URS) are transmitted. . That is, this PDCCH can be said to be a signal that permits data transmission on the uplink (hereinafter also referred to as “uplink transmission permission signal” or “uplink grant”).

  The PDSCH is a channel used for transmitting downlink data (transport block for the downlink shared channel (DL-SCH)) or paging information (paging channel: PCH). Base station apparatus 100 transmits a downlink transport block (a transport block for a downlink shared channel (DL-SCH)) to mobile station apparatus 200 using PDSCH assigned by PDCCH.

  Here, the downlink data indicates, for example, user data, and DL-SCH is a transport channel. In DL-SCH, HARQ, dynamic adaptive radio link control, and precoding control (including beamforming control) are supported. The DL-SCH supports dynamic resource allocation and semi-static resource allocation.

  PUSCH is a channel mainly used for transmitting uplink data (transport block for uplink shared channel (UL-SCH)). The mobile station apparatus 200 uses the PUSCH assigned by the PDCCH transmitted from the base station apparatus 100 to transmit an uplink transport block (transport block for the uplink shared channel (UL-SCH)) to the base station apparatus 100. Send to.

  Moreover, when the base station apparatus 100 schedules the mobile station apparatus 200, uplink control information is also transmitted using PUSCH. Here, the uplink control information includes feedback information such as channel state information (CSI), channel quality identifier (CQI), precoding matrix identifier (PMI), rank identifier (RI) and the like. Further, the uplink control information includes information indicating ACK / NACK in HARQ for the downlink transport block. Also, the uplink control information includes a scheduling request (SR) for requesting resource allocation for the mobile station apparatus 200 to transmit uplink data (requesting transmission on UL-SCH).

  Here, the uplink data indicates, for example, user data, and UL-SCH is a transport channel. The PUSCH is a physical channel defined (configured) by the time domain and the frequency domain. In UL-SCH, HARQ, dynamic adaptive radio link control, and precoding control (including beamforming control) are supported. UL-SCH supports dynamic resource allocation and quasi-static resource allocation.

  Further, in uplink data (UL-SCH) and downlink data (DL-SCH), radio resource control signals (hereinafter referred to as “RRC signaling: Radio Resource”) exchanged between the base station apparatus 100 and the mobile station apparatus 200 are used. "Control Signaling") may be included. Further, the uplink data (UL-SCH) and the downlink data (DL-SCH) include a MAC (Medium Access Control) control element exchanged between the base station apparatus 100 and the mobile station apparatus 200. Also good.

  Base station apparatus 100 and mobile station apparatus 200 transmit and receive RRC signaling in an upper layer (Radio Resource Control layer). Base station apparatus 100 and mobile station apparatus 200 transmit and receive MAC control elements in an upper layer (medium access control (MAC) layer).

  PUCCH is a channel used for transmitting uplink control information. Here, the uplink control information includes channel state information (CSI), channel quality identifier (CQI), precoding matrix identifier (PMI), and rank identifier (RI). Further, the uplink control information includes information indicating ACK / NACK in HARQ for the downlink transport block. Also, the uplink control information includes a scheduling request (SR) for requesting resource allocation for the mobile station apparatus 200 to transmit uplink data (requesting transmission on UL-SCH).

  Here, CQI, PMI, and RI as feedback information are recommended transmission format information (implicit feedback information) for the mobile station apparatus 200 to the base station apparatus 100. Specifically, since CQI is information indicating a coding rate and a modulation scheme, error correction coding and data symbol modulation processing can be controlled, respectively. PMI is information indicating a precoding matrix, and thus precoding processing for transmission data is performed. Since the RI is information indicating the number of layers (ranks), it can be controlled with respect to an upper layer that generates layer mapping processing and codewords (units of transmission data to be encoded). Note that the base station apparatus 100 does not necessarily follow the received recommended transmission format information, and can determine the base station apparatus 100 based on various factors such as the status of other mobile station devices 200 and the status of the communication system. Further, CSI as feedback information is information (explicit feedback information) indicating a transmission path condition in the downlink, and the amount of information can be reduced by processing such as quantization processing and eigenvalue decomposition.

  Furthermore, PMI can be divided into two and notified as PMI1 and PMI2. This separation can be used in a variety of ways or applications. For example, precoding control information can be expressed by performing various operations such as multiplication and Kronecker operation on PMI1 and PMI2, and can also be set as independent precoding control information. Specifically, PMI1 / PMI2 includes long-term fluctuation / short-term fluctuation, wideband information / narrowband, subband information, MU-MIMO (Multi-User). MIMO) information / SU-MIMO (Single-User MIMO) information. Further, PMI1 and PMI2 may be notified at the same time, or may be notified using different resources (timing, subframe). Also, any feedback information may be combined (joined) to form one piece of feedback information. For example, information obtained by combining rank information and PMI1 precoding information may be notified.

[Configuration of base station apparatus]
FIG. 2 is a block diagram showing a schematic configuration of the base station apparatus 100 according to the embodiment of the present invention. The base station apparatus 100 includes a data control unit 101, a transmission data modulation unit 102, a radio unit 103, a scheduling unit 104, a channel estimation unit 105, a received data demodulation unit 106, a data extraction unit 107, and an upper layer. 108 and an antenna 109. The radio unit 103, the scheduling unit 104, the channel estimation unit 105, the reception data demodulation unit 106, the data extraction unit 107, the upper layer 108 and the antenna 109 constitute a reception unit, and the data control unit 101, the transmission data modulation unit 102, The radio unit 103, the scheduling unit 104, the upper layer 108, and the antenna 109 constitute a transmission unit.

  The antenna 109, the radio unit 103, the channel estimation unit 105, the reception data demodulation unit 106, and the data extraction unit 107 perform processing on the uplink physical layer. The antenna 109, the radio unit 103, the transmission data modulation unit 102, and the data control unit 101 perform downlink physical layer processing.

  The data control unit 101 receives a transport channel from the scheduling unit 104. The data control unit 101 maps the transport channel and the signal and channel generated in the physical layer to the physical channel based on the scheduling information input from the scheduling unit 104. Each piece of data mapped as described above is output to transmission data modulation section 102.

  Transmission data modulation section 102 modulates transmission data into an OFDM signal. The transmission data modulation unit 102 performs control based on the scheduling information from the scheduling unit 104 for each data (codeword) for each mobile station apparatus 200 input from the data control unit 101. The transmission data modulation unit 102 includes data symbol modulation, error correction coding, scheduling control (resource element mapping, subcarrier mapping), serial / parallel conversion of input signals, IFFT (Inverse Fast Fourier Transform) processing, Signal processing such as CP (Cyclic Prefix) insertion and filtering is performed, transmission data is generated, and output to the radio section 103. Here, the scheduling information includes downlink physical resource block PRB (Physical Resource Block) allocation information, for example, physical resource block position information including frequency and time. In addition, as the modulation scheme and coding information corresponding to each codeword, for example, information such as modulation scheme: 16QAM, coding rate: 2/3, and the like are included. Further, instead of the coding rate, the information amount (transport block size) of the encoded codeword or an index indicating it may be included.

  Radio section 103 up-converts the modulation data input from transmission data modulation section 102 to a radio frequency to generate a radio signal, and transmits the radio signal to mobile station apparatus 200 via antenna 109. Radio section 103 receives an uplink radio signal from mobile station apparatus 200 via antenna 109, down-converts it into a baseband signal, and receives received data as channel estimation section 105 and received data demodulation section 106. And output.

  The scheduling unit 104 performs processing of a medium access control (MAC) layer. The scheduling unit 104 performs mapping between logical channels and transport channels, downlink and uplink scheduling (HARQ processing, selection of transport format, etc.), and the like. Since the scheduling unit 104 controls the processing units of each physical layer in an integrated manner, the scheduling unit 104, the antenna 109, the radio unit 103, the channel estimation unit 105, the reception data demodulation unit 106, the data control unit 101, the transmission data modulation There is an interface between the unit 102 and the data extraction unit 107 (not shown).

  In downlink scheduling, the scheduling unit 104 receives uplink control information (CSI, CQI, PMI, RI, information indicating ACK / NACK for the downlink transport block (codeword) received from the mobile station apparatus 200, scheduling, Request), PRB information that can be used by each mobile station device 200, buffer status, scheduling information input from the higher layer 108, and the like, a downlink transport format for modulating each data (Transmission mode, ie, physical resource block allocation, modulation scheme and coding scheme, etc.) selection processing, retransmission control in HARQ, and generation of scheduling information used for downlink. The scheduling information used for downlink scheduling is output to the data control unit 101.

  Further, in uplink scheduling, the scheduling unit 104 estimates the uplink channel state (radio channel state) output from the channel estimation unit 105, the resource allocation request from the mobile station device 200, and each mobile station device 200. Based on the available PRB information, scheduling information input from the higher layer 108, etc., an uplink transport format for modulating each data (transmission form, ie, physical resource block allocation and modulation scheme and Encoding information and the like, and scheduling information used for uplink scheduling. Scheduling information used for uplink scheduling is output to the data control unit 101.

  In addition, the scheduling unit 104 maps the downlink logical channel input from the higher layer 108 to the transport channel, and outputs it to the data control unit 101. In addition, the scheduling unit 104 processes the control data and the transport channel acquired in the uplink input from the data extraction unit 107 as necessary, maps them to the uplink logical channel, and outputs them to the upper layer 108. To do.

  Channel estimation section 105 estimates an uplink channel state from an uplink demodulation reference signal (UDRS) for demodulation of uplink data, and outputs the estimation result to reception data demodulation section 106. To do. In addition, in order to perform uplink scheduling, an uplink channel state is estimated from an uplink measurement reference signal (SRS), and the estimation result is output to the scheduling section 104.

  The received data demodulator 106 demodulates received data modulated into an OFDM signal and / or DFT-Spread-OFDM (DFT-S-OFDM) signal (including SC-FDMA signal) and / or DFT- Also serves as a Spread-OFDM (DFT-S-OFDM) demodulator. Based on the uplink channel state estimation result input from the channel estimation unit 105, the reception data demodulation unit 106 performs IDFT (Inverse DFT) conversion, subcarrier demapping, modulation data input from the radio unit 103, and Signal processing such as FFT (Fast Fourier Transform) conversion, filtering, error correction decoding, and data symbol demodulation is performed, and the result is output to the data extraction unit 107.

  The data extraction unit 107 confirms whether or not the data input from the reception data demodulation unit 106 has been correctly received, and outputs a confirmation result (ACK or NACK) to the scheduling unit 104. The data extraction unit 107 separates the data input from the reception data demodulation unit 106 into a transport channel and physical layer control data, and outputs the data to the scheduling unit 104. The separated control data includes CSI, CQI, PMI, RI transmitted from the mobile station apparatus 200, information indicating ACK / NACK for the downlink transport block, a scheduling request, and the like.

  The upper layer 108 performs processing of a packet data convergence protocol (PDCP) layer, a radio link control (RLC) layer, and a radio resource control (RRC) layer. The upper layer 108 integrates and controls the processing units of the lower layer, so the upper layer 108, the scheduling unit 104, the antenna 109, the radio unit 103, the channel estimation unit 105, the received data demodulation unit 106, the data control unit 101, There is an interface between the transmission data modulation unit 102 and the data extraction unit 107 (not shown).

  The upper layer 108 includes a radio resource control unit 110 (also referred to as a control unit). The radio resource control unit 110 also manages various setting information, system information, paging control, communication state management of each mobile station device 200, mobility management such as handover, and buffer status for each mobile station device 200. Management, management of unicast and multicast bearer connection settings, management of mobile station identifiers (UEID), and the like. The upper layer 108 exchanges information with another base station apparatus and information with an upper node.

[Configuration of mobile station device]
FIG. 3 is a block diagram showing a schematic configuration of the mobile station apparatus 200 according to the embodiment of the present invention. The mobile station apparatus 200 includes a data control unit 201, a transmission data modulation unit 202, a radio unit 203, a scheduling unit 204, a channel estimation unit 205, a reception data demodulation unit 206, a data extraction unit 207, and an upper layer. 208 and an antenna 209. The data control unit 201, transmission data modulation unit 202, radio unit 203, scheduling unit 204, higher layer 208, and antenna 209 constitute a transmission unit, and the radio unit 203, scheduling unit 204, channel estimation unit 205, received data demodulation unit Unit 206, data extraction unit 207, upper layer 208, and antenna 209 constitute a reception unit.

  The data control unit 201, the transmission data modulation unit 202, and the radio unit 203 perform processing on the uplink physical layer. The radio unit 203, the channel estimation unit 205, the received data demodulation unit 206, and the data extraction unit 207 perform downlink physical layer processing.

  The data control unit 201 receives a transport channel from the scheduling unit 204. The transport channel and the signal and channel generated in the physical layer are mapped to the physical channel based on the scheduling information input from the scheduling unit 204. Each piece of data mapped in this way is output to transmission data modulation section 202.

  The transmission data modulation unit 202 modulates transmission data into an OFDM signal and / or a DFT-Spread-OFDM signal. The transmission data modulation unit 202 performs data modulation, DFT (Discrete Fourier Transform) processing, subcarrier mapping, IFFT (Inverse Fast Fourier Transform) processing, CP insertion, filtering, and other signals on the data input from the data control unit 201. Processing is performed, transmission data is generated, and output to the wireless unit 203.

  Radio section 203 up-converts the modulation data input from transmission data modulation section 202 to a radio frequency, generates a radio signal, and transmits the radio signal to base station apparatus 100 via antenna 209. Radio section 203 receives a radio signal modulated with downlink data from base station apparatus 100 via antenna 209, down-converts it to a baseband signal, and receives the received data as channel estimation section 205. And output to the received data demodulation section 206.

  The scheduling unit 204 performs processing of a medium access control (MAC) layer. The scheduling unit 204 performs mapping between logical channels and transport channels, downlink and uplink scheduling (HARQ processing, transport format selection, etc.), and the like. Since the scheduling unit 204 controls the processing units of each physical layer in an integrated manner, the scheduling unit 204, the antenna 209, the data control unit 201, the transmission data modulation unit 202, the channel estimation unit 205, the reception data demodulation unit 206, the data There is an interface between the extraction unit 207 and the wireless unit 203 (not shown).

  In downlink scheduling, the scheduling unit 204 controls reception of transport channels, physical signals, and physical channels based on scheduling information (transport format and HARQ retransmission information) from the base station apparatus 100 and the upper layer 208, and the like. Scheduling information used for HARQ retransmission control and downlink scheduling is generated. The scheduling information used for downlink scheduling is output to the data control unit 201.

  In uplink scheduling, the scheduling unit 204 receives the uplink buffer status input from the higher layer 208 and uplink scheduling information from the base station apparatus 100 input from the data extraction unit 207 (transport format and HARQ retransmission). Information), and scheduling processing for mapping the uplink logical channel input from the upper layer 208 to the transport channel and the uplink scheduling based on the scheduling information input from the upper layer 208, etc. Scheduling information to be generated is generated. Note that the information notified from the base station apparatus 100 is used for the uplink transport format. The scheduling information is output to the data control unit 201.

  Also, the scheduling unit 204 maps the uplink logical channel input from the higher layer 208 to the transport channel, and outputs it to the data control unit 201. In addition, the scheduling unit 204 also sends the CSI, CQI, PMI, RI, and CRC code detection confirmation results input from the data extraction unit 207 input from the channel estimation unit 205 to the data control unit 201. Output. In addition, the scheduling unit 204 processes the control data and the transport channel acquired in the downlink input from the data extraction unit 207 as necessary, maps them to the downlink logical channel, and outputs them to the upper layer 208. To do.

  The channel estimation unit 205 estimates a channel state for each rank (for each layer) for downlink data from the downlink mobile station apparatus specific reference signal for demodulation of the downlink data, and receives the estimation result as a received data demodulation unit 206. Output to. The channel estimation unit 205 also notifies the base station apparatus 100 of the downlink channel state (radio channel state, CSI, CQI, PMI, RI) estimation result from the downlink base station apparatus specific reference signal. The channel state for each antenna port in the downlink is estimated, and the estimation result is output to the scheduling unit 204 as, for example, CSI, CQI, PMI, or RI.

  The reception data demodulator 206 demodulates the reception data modulated into the OFDM signal. Received data demodulation section 206 performs demodulation processing on the modulated data input from radio section 203 based on the channel state estimation results for each rank for the downlink data input from channel estimation section 205, and extracts data. Output to the unit 207.

  The data extraction unit 207 detects a CRC code for the data input from the reception data demodulation unit 206, confirms whether the data is correctly received, and schedules a confirmation result (information indicating ACK or NACK). Output to the unit 204. The data extraction unit 207 separates the data input from the reception data demodulation unit 206 into transport channel and physical layer control data, and outputs the data to the scheduling unit 204. The separated control data includes scheduling information such as downlink or uplink resource allocation and uplink HARQ control information.

  The upper layer 208 performs processing of a packet data convergence protocol (PDCP) layer, a radio link control (RLC) layer, and a radio resource control (RRC) layer. The upper layer 208 integrates and controls the processing units of the lower layer, so that the upper layer 208, the scheduling unit 204, the antenna 209, the data control unit 201, the transmission data modulation unit 202, the channel estimation unit 205, the reception data demodulation unit 206, an interface between the data extraction unit 207 and the radio unit 203 exists (not shown).

  The upper layer 208 has a radio resource control unit 210 (also referred to as a control unit). The radio resource control unit 210 manages various setting information, system information, paging control, own station communication status, mobility management such as handover, buffer status management, unicast and multicast bearer connection setting. Management and management of mobile station identifier (UEID).

(First embodiment)
Next, a first embodiment in a mobile communication system using the base station apparatus 100 and the mobile station apparatus 200 will be described. In the first embodiment, the base station apparatus 100 sets a specific downlink component carrier (primary downlink component carrier) in the mobile station apparatus 200, and a downlink control information format including a channel state information transmission instruction ( PDCCH may be notified to the mobile station apparatus 200, and the mobile station apparatus 200 is assigned a PUSCH resource in an uplink component carrier (primary uplink component carrier) corresponding to a specific downlink component carrier. Is an uplink component other than an uplink component carrier corresponding to a specific downlink component carrier, depending on a downlink control information format including a transmission instruction of channel state information. Even PUSCH resource is allocated in the carrier, the channel state information, place the PUSCH resource in the uplink component carrier corresponding to a particular downlink component carriers, and transmits to the base station apparatus 100.

  Further, the base station apparatus 100 sets a specific downlink component carrier to the mobile station apparatus 200, transmits RRC signaling including a periodic channel state information transmission instruction to the mobile station apparatus 200, and performs aperiodic transmission. The mobile station apparatus 200 is notified of a downlink control information format (which may be PDCCH) including a channel state information transmission instruction, and the mobile station apparatus 200 transmits periodic channel state information and aperiodic channel state information. When transmission occurs in the same subframe, if a PUSCH resource in an uplink component carrier corresponding to a specific downlink component carrier is allocated, an instruction to transmit aperiodic channel state information is used. The downlink control information format including Even if PUSCH resources in uplink component carriers other than the uplink component carrier corresponding to the link component carrier are allocated, both the periodic channel state information and the aperiodic channel state information are It arrange | positions to the PUSCH resource in the uplink component carrier corresponding to a carrier, and transmits to the base station apparatus 100.

  Base station apparatus 100 extracts periodic channel state information and / or aperiodic channel state information transmitted from mobile station apparatus 200 from PUSCH resources, and extracts the extracted periodic channel state information and / or aperiodic information. The mobile station apparatus 200 performs downlink scheduling based on the typical channel state information (assigns radio resources to the mobile station apparatus 200).

  Here, in this embodiment, the channel state information (CSI) is described for the sake of simplicity, but this embodiment is not limited to the channel quality identifier (CQI), precoding matrix identifier (PMI), rank identifier ( Of course, it can also be applied to (RI).

  That is, the periodic channel state information (P-CSI: Periodic CSI) in this embodiment includes periodic CQI (P-CQI: Periodic CQI), periodic PMI (P-PMI: Periodic PMI), periodic RI (P-RI: Periodic RI) may be used. The periodic channel state information, the periodic CQI, the periodic PMI, and the periodic RI in the present embodiment are determined by the mobile station apparatus 200 periodically (persistently) according to an instruction from the base station apparatus 100. This is channel state information, CQI, PMI, and RI transmitted to the base station apparatus 100 quasi-statically and in the long term (for example, at 10 ms intervals).

  In addition, aperiodic channel state information (A-CSI: Aperiodic CSI) in the present embodiment includes aperiodic CQI (A-CQI) and aperiodic PMI (A-PMI). An aperiodic RI (A-RI) may be used. The aperiodic channel state information, the aperiodic CQI, the aperiodic PMI, and the aperiodic RI in the present embodiment are determined by the mobile station apparatus 200 according to an instruction from the base station apparatus 100. (Dynamically, dynamically, for example, every 1 ms) is channel state information, CQI, PMI, and RI transmitted to the base station apparatus 100.

  Hereinafter, in the present embodiment, the frequency band is defined by the bandwidth (Hz), but may be defined by the number of resource blocks (RB) configured by frequency and time. That is, the bandwidth may be defined by the number of resource blocks. Here, the resource block is composed of a plurality of subcarriers and a plurality of OFDM symbols as a unit for allocating resources or a part thereof. For example, one resource block includes 12 subcarriers and 7 OFDM symbols. Also, the bandwidth and the number of resource blocks can be defined by the number of subcarriers.

  The component carrier in this embodiment is used in combination when the base station apparatus 100 and the mobile station apparatus 200 communicate in a mobile communication system having a (wideband) frequency band (or a system band) ( It shows the frequency band (narrow band). The base station apparatus 100 and the mobile station apparatus 200 aggregate a plurality of component carriers (for example, five frequency bands having a bandwidth of 20 MHz), thereby reducing a (wideband) frequency band (for example, a bandwidth of 100 MHz). High-frequency data communication (information transmission / reception) can be realized by composing a plurality of component carriers in combination.

  The component carrier is a frequency band (for example, a frequency band having a bandwidth of 20 MHz) that constitutes this (wide band) frequency band (for example, a frequency band having a bandwidth of 100 MHz). It is shown that. The component carrier may indicate the (center) carrier frequency of each of these (narrow band) frequency bands.

  That is, the downlink component carrier has a partial band (width) in a frequency band that can be used when the base station apparatus 100 and the mobile station apparatus 200 transmit and receive downlink information, and the uplink component carrier The carrier has a partial band (width) in a frequency band that can be used when the base station apparatus 100 and the mobile station apparatus 200 transmit and receive uplink information. Furthermore, the component carrier may be defined as a unit in which a specific physical channel (for example, PDCCH or PUCCH) is configured.

  Further, the component carrier may be arranged in a continuous frequency band or may be arranged in a discontinuous frequency band, and the base station apparatus 100 and the mobile station apparatus 200 have a continuous and / or discontinuous frequency band. By consolidating a plurality of component carriers, a wide frequency band is formed, and by using these plurality of component carriers in combination, high-speed data communication (information transmission / reception) can be realized.

  Furthermore, the frequency band used for downlink communication constituted by component carriers and the frequency band used for uplink communication need not have the same bandwidth, and the base station apparatus 100 and the mobile station apparatus 200 It is possible to perform communication using a composite of a downlink frequency band and an uplink frequency band having different bandwidths constituted by component carriers (asymmetric carrier aggregation described above). Further, the frequency bandwidth of each component carrier may be different.

  FIG. 4 is a diagram illustrating an example of a mobile communication system to which the first embodiment can be applied. In FIG. 4, as an example, the frequency band used for uplink communication having a bandwidth of 40 MHz is configured by two uplink component carriers (UCC1, UCC2) having a bandwidth of 20 MHz. Is shown. Here, the first embodiment can be applied to any mobile communication system in which symmetric frequency band aggregation and asymmetric frequency band aggregation are performed. Moreover, although the following description describes the operation | movement of the base station apparatus 100 and the mobile station apparatus 200 in two uplink component carriers as an example, of course, the same embodiment is applicable to all the component carriers.

  In FIG. 4, the base station apparatus 100 can transmit RRC signaling including a periodic channel state information transmission instruction to the mobile station apparatus 200. Further, the base station apparatus 100 can transmit a PDCCH (also referred to as a downlink control information format) including a non-periodic channel state information transmission instruction to the mobile station apparatus 200.

  For example, the base station apparatus 100 sets a PUCCH resource and a transmission interval (transmission cycle) for the mobile station apparatus 200 to transmit periodic channel state information to the mobile station apparatus 200 using RRC signaling. can do. According to the setting from base station apparatus 100, mobile station apparatus 200 arranges channel state information and / or CQI and / or PMI and / or RI in PUCCH resources allocated by base station apparatus 100, and periodically It transmits to the base station apparatus 100.

  Further, for example, the base station apparatus 100 transmits to the mobile station apparatus 200 including information instructing (requesting) transmission of channel state information in the PDCCH, and instructs the mobile station apparatus 200 to transmit channel state information. (Request) can be made. For example, the base station apparatus 100 sets a CSI request included in PDCCH (downlink control format) to “1” and transmits (notifies) the mobile station apparatus 200 with the channel state information. Can be sent. The mobile station apparatus 200 notified of the PDCCH including the channel state information transmission instruction from the base station apparatus 100 assigns the channel state information and / or CQI and / or PMI and / or RI to the PUSCH resource allocation (PUSCH) included in the PDCCH. It is arranged on the PUSCH resource allocated by the resource block allocation information) and transmitted to the base station apparatus 100 aperiodically.

  Here, when the base station apparatus 100 has not instructed the mobile station apparatus 200 to transmit channel state information (for example, instructed to transmit uplink data (only)), the PDCCH The included CSI request is set to “0” by the base station apparatus 100. When base station apparatus 100 does not instruct mobile station apparatus 200 to transmit channel state information, base station apparatus 100 does not allocate channel state information to PUSCH resources for mobile station apparatus 200. For example, it is instructing that uplink data is arranged in a PUSCH resource and transmitted to the base station apparatus 100.

  The mobile station apparatus 200 arranges the non-periodic channel state information in the PUSCH resource allocated by the PDCCH including the channel state information transmission instruction from the base station apparatus 100 and transmits it to the base station apparatus 100. That is, PDCCH (downlink control information format) transmitted from base station apparatus 100 to mobile station apparatus 200 is used by base station apparatus 100 to allocate (schedule) PUSCH resources to mobile station apparatus 200. Is done.

  Here, mobile station apparatus 200 notified of PDCCH including a channel state information transmission instruction from base station apparatus 100 needs to transmit uplink data (transport block for UL-SCH) to base station apparatus 100. In the case (when uplink data exists in the buffer), channel state information and / or CQI and / or PMI and / or RI and uplink data are both allocated to the PUSCH resource allocated by base station apparatus 100. Then, it is transmitted to the base station apparatus 100 aperiodically.

  Also, mobile station apparatus 200 notified of PDCCH including a channel state information transmission instruction from base station apparatus 100 indicates ACK / NACK in HARQ for downlink data (which may be a transport block for DL-SCH or PDSCH). When it is necessary to transmit information to base station apparatus 100, the PUSCH allocated by base station apparatus 100 together with channel state information and / or information indicating CQI and / or PMI and / or RI and ACK / NACK It arrange | positions to a resource and transmits to the base station apparatus 100.

  In FIG. 4, the base station apparatus 100 can set a specific (for example, a certain one) downlink component carrier for the mobile station apparatus 200. Moreover, the base station apparatus 100 can set a specific (for example, one certain) uplink component carrier with respect to the mobile station apparatus 200.

  For example, the base station apparatus 100 can set a specific downlink component carrier for the mobile station apparatus 200 to be specific to the mobile station apparatus (UE-specifically) using RRC signaling. For example, the base station apparatus 100 can set a specific downlink component carrier to the mobile station apparatus 200 semi-statically using RRC signaling.

  Further, for example, the base station apparatus 100 can set a specific uplink component carrier for the mobile station apparatus 200 in a manner specific to the mobile station apparatus 200 using RRC signaling. Further, for example, the base station apparatus 100 can set a specific uplink component carrier to the mobile station apparatus 200 semi-statically using RRC signaling.

  Further, the base station apparatus 100 can set the correspondence (link) between a specific downlink component carrier and a specific uplink component carrier for the mobile station apparatus 200. For example, the base station apparatus 100 uses broadcast information (for example, SIB: System Information Block) to indicate the correspondence between a specific downlink component carrier and a specific uplink component carrier, and the mobile station apparatus. 200 can be set. Further, for example, the base station apparatus 100 uses the broadcast information to indicate the correspondence between a specific downlink component carrier and a specific uplink link component carrier in a cell-specifically manner. Can be set.

  Further, for example, the base station apparatus 100 determines the correspondence between a specific downlink component carrier and a specific uplink link component carrier to the mobile station apparatus 200 using RRC signaling in a manner unique to the mobile station apparatus 200. Can be set.

  That is, the base station apparatus 100 can set a specific uplink component carrier for the mobile station apparatus 200 as an uplink component carrier corresponding to a specific downlink component carrier. That is, the base station apparatus 100 sets a specific downlink component carrier for the mobile station apparatus 200, and the mobile station apparatus 200 specifies an uplink component carrier corresponding to a specific downlink component carrier. It can be recognized as an uplink component carrier.

  Hereinafter, a specific downlink component carrier set by the base station apparatus 100 is also referred to as a primary downlink component carrier (PDCC). In addition, downlink component carriers other than a specific downlink component carrier set by the base station apparatus 100 are also referred to as secondary downlink component carriers (SDCC).

  Moreover, a certain uplink component carrier set by the base station apparatus 100 is also referred to as a primary uplink component carrier (PUCC). In addition, uplink component carriers other than a specific uplink component carrier set by the base station apparatus 100 are also referred to as secondary uplink component carriers (SDCC).

  In FIG. 4, mobile station apparatus 200 transmits periodic channel state information to base station apparatus 100 in a specific uplink component carrier (primary uplink component carrier) set by base station apparatus 100.

  For example, the mobile station apparatus 200 arranges periodic channel state information in the PUCCH resource in the primary uplink component carrier set by the base station apparatus 100, and transmits to the base station apparatus 100. That is, the base station apparatus 100 sets (assigns) the PUCCH resource in the primary uplink component carrier to the mobile station apparatus 200 using RRC signaling. Further, the base station apparatus 100 uses the RRC signaling to set a transmission interval (transmission period) for the mobile station apparatus 200 to transmit periodic channel state information in the primary uplink component carrier. 200 is set (assigned).

  Here, the mobile station apparatus 200 arranges information indicating ACK / NACK for the downlink transport block (or PDSCH) in the PUCCH resource in the primary uplink component carrier set by the base station apparatus 100, and It transmits to the station apparatus 100. Also, the mobile station apparatus 200 places a scheduling request in the PUCCH resource in the primary uplink component carrier set by the base station apparatus 100, and transmits the scheduling request to the base station apparatus 100. That is, the base station apparatus 100 may set a primary uplink component carrier as an uplink component carrier when the mobile station apparatus 200 arranges uplink control information in a PUCCH resource and transmits it to the base station apparatus 100. it can.

  In FIG. 4, the PUCCH resource (PUCCH resource region) of UCC1 is indicated by hatching because the base station apparatus 100 sets UCC1 as a primary uplink component carrier for the mobile station apparatus 200. Is shown. Moreover, the PUCCH resource (PUCCH resource area) of UCC2 is shown in white. This is because the base station apparatus 100 sets UCC2 as a secondary uplink component carrier for the mobile station apparatus 200. Show.

  Here, the mobile station apparatus 200 generates (measures) each downlink signal transmitted for each downlink component carrier in the PUCCH resource in the primary uplink component carrier (UCC1) set by the base station apparatus 100. The channel state information (feedback information) is arranged and periodically transmitted to the base station apparatus 100. That is, base station apparatus 100 sets (instructs) mobile station apparatus 200 to periodically transmit channel state information for each downlink signal transmitted for each downlink component using RRC signaling. be able to.

  For example, the mobile station device 200 generates channel state information for each downlink signal transmitted in DCC1, DCC2, DCC3, DCC4, and DCC5 in FIG. 7 and FIG. 8, and periodically generates the generated channel state information. To the base station apparatus 100. For example, the mobile station device 200 generates channel state information for each downlink signal transmitted in DCC1, DCC2, DCC3, DCC4, and DCC5 in FIG. 7 and FIG. 8, and cyclically generates the generated channel state information. In addition, it can be periodically transmitted to the base station apparatus 100.

  That is, mobile station apparatus 200 first transmits channel state information for the downlink signal transmitted in DCC1, subsequently transmits channel state information for the downlink signal transmitted in DCC2, and then continues in DCC3. Transmits channel state information for the transmitted downlink signal, subsequently transmits channel state information for the downlink signal transmitted in DCC4, and subsequently transmits channel state information for the downlink signal transmitted in DCC5. Then, again, the channel state information generated for each downlink signal transmitted for each downlink component carrier is cyclically transmitted such that the channel state information for the downlink signal transmitted in DCC1 is transmitted. Base station apparatus 10 It can be sent to.

  Here, the mobile station apparatus 200 first transmits the channel state information for the downlink signal transmitted in the downlink component carrier to the base station apparatus 100. For example, the base station apparatus 100 uses RRC signaling to Set by the station device 100. Further, whether the mobile station apparatus 200 first transmits the channel state information for the downlink signal transmitted in which downlink component carrier to the base station apparatus 100 may be defined in advance by specifications, for example. good.

  For example, the channel state for the downlink signal transmitted by the mobile station apparatus 200 in the downlink component carrier assigned the smallest (or largest) index among the indices assigned to the plurality of downlink component carriers The transmission of information to the base station apparatus 100 first may be specified in advance by specifications or the like.

  In FIG. 4, mobile station apparatus 200 arranges the channel state information in the PUSCH resource allocated by PDCCH including the transmission instruction of the channel state information, and transmits aperiodic channel state information to base station apparatus 100. To do.

  Here, the mobile station apparatus 200 arranges the channel state information generated (measured) for any one of the downlink signals transmitted for each downlink component carrier in the PUSCH resource allocated by the base station apparatus 100. Thus, it can be transmitted to the base station apparatus 100 aperiodically. That is, the base station apparatus 100 transmits the aperiodic transmission of the channel state information for any one of the downlink signals transmitted for each downlink component to the mobile station apparatus 200 using the CSI request included in the PDCCH. It is possible to give an instruction (request) to it.

  For example, the mobile station device 200 generates channel state information for any one of the downlink signals transmitted in DCC1, DCC2, DCC3, DCC4, and DCC5 in FIGS. 7 and 8, and the generated channel state information is The data can be transmitted to the base station apparatus 100 aperiodically. For example, the mobile station apparatus 200 may arrange the channel state information for the downlink signal transmitted in the DCC 1 in the PUSCH resource allocated by the base station apparatus 100 and transmit the channel state information to the base station apparatus 100 aperiodically. it can. For example, the mobile station apparatus 200 arranges channel state information for the downlink signal transmitted in the DCC 3 in the PUSCH resource allocated by the base station apparatus 100, and transmits the channel state information to the base station apparatus 100 aperiodically. be able to.

  Here, for which downlink component carrier the mobile station apparatus 200 transmits (measures and generates) the channel state information for the downlink signal transmitted by the base station apparatus 100 using, for example, RRC signaling. Is set. The mobile station apparatus 200 transmits (measures and generates) the channel state information for the downlink signal transmitted in which downlink component carrier by using information included in the PDCCH, for example, 100 may be indicated.

  In addition, in FIG. 4, the base station device 100 indicates information (CIF: Carrier Indicator Field, for example, an information field represented by 3 bits, which indicates an uplink component carrier in which PUSCH resources to be allocated using PDCCH are arranged. (Hereinafter also referred to as a carrier identifier) can be included in the PDCCH and transmitted to the mobile station apparatus 200.

  For example, the base station apparatus 100 can include the carrier identifier indicating that the PUSCH resource arranged in the UCC1 is assigned to the mobile station apparatus 200 in the PDCCH and transmit the carrier identifier to the mobile station apparatus 200. The mobile station apparatus 200 that has received this information places an uplink signal (for example, uplink data and / or channel state information) in the PUSCH resource in the UCC 1 and transmits it to the base station apparatus 100. For example, the base station apparatus 100 can include the carrier identifier indicating that the PUSCH resource allocated in the UCC2 is allocated to the mobile station apparatus 200 in the PDCCH and transmit the carrier identifier to the mobile station apparatus 200. The mobile station apparatus 200 that has received this information places an uplink signal (for example, uplink data and / or channel state information) in the PUSCH resource in the UCC 2 and transmits it to the base station apparatus 100.

  That is, in FIG. 4, the base station apparatus 100 can allocate the PUSCH resource in the same uplink component carrier as the primary uplink component carrier set for the mobile station apparatus 200 to the mobile station apparatus 200. . Also, the base station apparatus 100 allocates, to the mobile station apparatus 200, PUSCH resources in an uplink component carrier (secondary uplink component carrier) that is different from the primary uplink component carrier set for the mobile station apparatus 200. be able to.

  Further, in FIG. 4, the base station apparatus 100 uses a plurality of (for example, two) PDCCHs to move PUSCH resources in a plurality of (for example, two) uplink component carriers in the same subframe. It can be assigned to the station device 200. For example, the base station apparatus 100 can allocate the PUSCH resource in UCC1 and the PUSCH resource in UCC2 to the mobile station apparatus 200 in the same subframe using two PDCCHs. The mobile station apparatus 200 arranges uplink signals (for example, uplink data and / or channel state information) in the PUSCH resource in the UCC1 and the PUSCH resource in the UCC2 allocated by the base station apparatus 100, and in the same subframe, It transmits to the base station apparatus 100.

  That is, mobile station apparatus 200 arranges an uplink signal (for example, uplink data and / or channel state information) in each PUSCH resource in a plurality of (for example, two) uplink component carriers, and uses the same subframe. Can be transmitted to the base station apparatus 100.

  Further, in FIG. 4, the base station apparatus 100 transmits a plurality of (for example, two) PDCCHs including a channel state information transmission instruction to the mobile station apparatus 200 and transmits a plurality of (for example, two) channel states. Information transmission can be instructed (requested) from the mobile station apparatus 200 in the same subframe. For example, the base station apparatus 100 transmits a channel state information transmission instruction to each of two PDCCHs to the mobile station apparatus 200, and transmits (multiple) each of the downlink signals transmitted on a plurality of (different) downlink component carriers. The transmission of the channel state information can be instructed to the mobile station apparatus 200 in the same subframe.

  The mobile station apparatus 200 transmits (multiple) channel state information generated for each downlink signal transmitted in a plurality of (different) downlink component carriers to the base station apparatus 100 in the same subframe. Can do. For example, the mobile station apparatus 200 uses, in the same subframe, the channel state information generated for the downlink signal transmitted in DCC1 and the channel state information generated for the downlink signal transmitted in DCC3 in the same subframe. It can be transmitted to the device 100. Also, for example, the mobile station apparatus 200 uses the same subframe for channel state information generated for the downlink signal transmitted in DCC2 and channel state information generated for the downlink signal transmitted in DCC4 in the same subframe. It can transmit to the base station apparatus 100.

  That is, base station apparatus 100 instructs mobile station apparatus 200 to transmit aperiodic channel state information in the same uplink component carrier as the primary uplink component carrier set for mobile station apparatus 200. can do. Also, the base station apparatus 100 moves the transmission of aperiodic channel state information in an uplink component carrier (secondary uplink component carrier) different from the primary uplink component carrier set for the mobile station apparatus 200. The station apparatus 200 can be instructed.

  Hereinafter, the base station apparatus 100 allocates the PUSCH resource to the mobile station apparatus 200 using the PDCCH including the transmission instruction of the channel state information (for example, the CSI request included in the PDCCH is set to “1” and the PUSCH is Allocating resources to the mobile station apparatus 200) is described as allocating PUSCH resources to the mobile station apparatus 200 using PDCCH including a channel state information transmission instruction.

  Further, the base station apparatus 100 allocates a PUSCH resource to the mobile station apparatus 200 using a PDCCH that does not include a channel state information transmission instruction (for example, by setting the CSI request included in the PDCCH to “0”, Assigning PUSCH resources to mobile station apparatus 200) is described as allocating PUSCH resources to mobile station apparatus 200 using a PDCCH that does not include a channel state information transmission instruction.

  In FIG. 4, base station apparatus 100 allocates PUSCH resources in UCC1 to mobile station apparatus 200 using PDCCH including a channel state information transmission instruction. The mobile station apparatus 200 notified of the PDCCH from the base station apparatus 100 arranges channel state information in the PUSCH resource in the UCC 1 allocated by the base station apparatus 100 and transmits the channel state information to the base station apparatus 100.

  Also, base station apparatus 100 allocates PUSCH resources in UCC2 to mobile station apparatus 200 using PDCCH including a channel state information transmission instruction. The mobile station apparatus 200 notified of the PDCCH from the base station apparatus 100 arranges channel state information in the PUSCH resource in the UCC 2 allocated by the base station apparatus 100 and transmits the channel state information to the base station apparatus 100.

  That is, the mobile station apparatus 200 arranges channel state information in the PUSCH resource in the secondary uplink component carrier allocated by the base station apparatus 100, and transmits the channel state information to the base station apparatus 100. At this time, the base station apparatus 100 does not allocate the PUSCH resource in UCC1 to the mobile station apparatus 200. That is, the base station apparatus 100 does not allocate the PUSCH resource in the primary uplink component carrier to the mobile station apparatus 200.

  Also, the base station apparatus 100 uses the PDCCH including the channel state information transmission instruction to use the PUSCH resource in the UCC1 and uses the PDCCH not including the channel state information transmission instruction to allocate the PUSCH resource in the UCC2 to the same subframe. Thus, the mobile station apparatus 200 is assigned. The mobile station apparatus 200 notified of the PDCCH from the base station apparatus 100 arranges the channel state information in the PUSCH resource in the UCC 1 and transmits it to the base station apparatus 100. That is, the mobile station apparatus 200 arranges channel state information in the PUSCH resource in the primary uplink component carrier set by the base station apparatus 100, and transmits the channel state information to the base station apparatus 100.

  In addition, the base station apparatus 100 uses the PDCCH that does not include the channel state information transmission instruction to use the PUSCH resource in the UCC1 and uses the PDCCH that includes the channel state information transmission instruction to allocate the PUSCH resource in the UCC2 to the same subframe. Thus, the mobile station apparatus 200 is assigned. The mobile station apparatus 200 notified of the PDCCH from the base station apparatus 100 arranges the channel state information in the PUSCH resource in the UCC 1 and transmits it to the base station apparatus 100. That is, the mobile station apparatus 200 arranges channel state information in the PUSCH resource in the primary uplink component carrier set by the base station apparatus 100, and transmits the channel state information to the base station apparatus 100.

  That is, the mobile station apparatus 200 uses the PUSCH resource in the primary uplink component carrier by the base station apparatus 100 even if the PDCCH to which the PUSCH resource in the secondary uplink component carrier includes the channel state information transmission instruction. Is allocated to the PUSCH resource in the primary uplink component carrier, and is transmitted to the base station apparatus 100. Here, the mobile station apparatus 200 can arrange the uplink data in the PUSCH resource in the UCC2 allocated by the base station apparatus 100 and transmit the uplink data to the base station apparatus 100.

  In addition, the base station apparatus 100 uses the PDCCH including the channel state information transmission instruction and the PUSCH resource in the UCC1 using the PDCCH including the channel state information transmission instruction, and the PUSCH resource in the UCC2 in the same subframe. To the mobile station apparatus 200. The mobile station apparatus 200 notified of the PDCCH from the base station apparatus 100 arranges the channel state information in the PUSCH resource in the UCC 1 and transmits it to the base station apparatus 100. That is, the mobile station apparatus 200 arranges channel state information in the PUSCH resource in the primary uplink component carrier set by the base station apparatus 100, and transmits the channel state information to the base station apparatus 100.

  That is, the mobile station apparatus 200 arranges (multiple) channel state information in the PUSCH resource in the primary uplink component carrier set by the base station apparatus 100, and transmits the channel state information to the base station apparatus 100. For example, the mobile station apparatus 200 arranges channel state information for each downlink signal transmitted in a different downlink component carrier in the PUSCH resource in the primary component carrier set by the base station apparatus 100, and the base station apparatus 100 Send to. Here, the mobile station apparatus 200 can arrange uplink data in the PUSCH resource in UCC2 and transmit the uplink data to the base station apparatus 100.

  Here, when the mobile station apparatus 200 needs to transmit uplink data (transport block for UL-SCH) to the base station apparatus 100 (when uplink data exists in the buffer), the channel state information And uplink data can be arranged and transmitted on the PUSCH resource (UCC1) in the primary uplink component carrier assigned by the base station apparatus 100.

  In addition, when the mobile station apparatus 200 needs to transmit uplink data (transport block for UL-SCH) to the base station apparatus 100 (when uplink data exists in the buffer), the mobile station apparatus 200 includes channel state information and Both uplink data can be transmitted by being arranged on the PUSCH resource in the secondary uplink component carrier (UCC2) allocated by the base station apparatus 100.

  When mobile station apparatus 200 needs to transmit information indicating ACK / NACK in HARQ for downlink data (which may be a transport block for DL-SCH or PDSCH) to base station apparatus 100, the channel state Both information and information indicating ACK / NACK can be transmitted by being arranged in the PUSCH resource in the primary uplink component carrier (UCC1) allocated by the base station apparatus 100.

  When mobile station apparatus 200 needs to transmit information indicating ACK / NACK in HARQ for downlink data (which may be a transport block for DL-SCH or PDSCH) to base station apparatus 100, the channel state Both information and information indicating ACK / NACK can be transmitted by being arranged in the PUSCH resource in the secondary uplink component carrier (UCC2) allocated by the base station apparatus 100.

  That is, when a plurality of PUSCH resources including the PUSCH resource in the primary uplink component carrier are allocated in the same subframe, the mobile station apparatus 200 transmits the channel state information to the primary uplink allocated by the base station apparatus 100. It arrange | positions to the PUSCH resource in a link component carrier, and transmits to the base station apparatus 100.

  Also, when a plurality of PUSCH resources including PUSCH resources in the primary uplink component carrier are allocated in the same subframe, the mobile station apparatus 200 transmits uplink control information to the primary station allocated by the base station apparatus 100. It arrange | positions to the PUSCH resource in an uplink component carrier, and transmits to the base station apparatus 100.

  As described above, in FIG. 4, the mobile station apparatus 200 arranges periodic channel state information in the PUCCH resource in the primary uplink component carrier (UCC1) set by the base station apparatus 100, and the base station apparatus To 100.

  Here, the base station apparatus 100 can set the transmission of periodic channel state information and the transmission of non-periodic channel state information to the mobile station apparatus 200 in the same subframe. For example, the base station apparatus 100 is set to transmit periodic channel state information to the mobile station apparatus 200 in a certain subframe n, and further to the mobile station apparatus 200 in a certain subframe n. It may be instructed to transmit aperiodic channel state information.

  For example, the base station apparatus 100 is configured to transmit periodic channel state information in a certain subframe n using RRC signaling (in advance), and further uses a PDCCH to configure a certain subframe n. Can instruct to transmit non-periodic channel state information. Here, for example, a subframe in which base station apparatus 100 instructs mobile station apparatus 200 to transmit aperiodic channel state information using PDCCH is a certain subframe n-4 (four subframes before). )

  That is, in the mobile station apparatus 200, the base station apparatus 100 sets periodic channel state information transmission and aperiodic channel state information transmission in the same subframe. For mobile station apparatus 200, it can also be said that transmission of periodic channel state information and transmission of non-periodic channel state information occur in the same subframe (set by base station apparatus 100).

  In FIG. 4, the mobile station device 200 in which transmission of periodic channel state information and transmission of aperiodic channel state information occurs in the same subframe, the periodic channel state information and the aperiodic channel state information Are transmitted to the base station apparatus 100 together. At this time, the mobile station apparatus 200 arranges both periodic channel state information and aperiodic channel state information in the PUSCH resource allocated by the base station apparatus 100, and transmits the PUSCH resource to the base station apparatus 100.

  Here, the PUSCH resource in UCC1 is allocated by the base station apparatus 100 using the PDCCH including the channel state information transmission instruction, and periodic channel state information transmission and aperiodic channel state information transmission are performed. The mobile station apparatus 200 generated in the same subframe arranges both the periodic channel state information and the aperiodic channel state information in the PUSCH resource in the UCC1 allocated by the base station apparatus 100, so that the base station apparatus 100 Send to.

  That is, the mobile station apparatus 200 is configured to transmit periodic channel state information (channel state information in PUCCH transmission format, PUCCH based transmission) that is to be transmitted by being allocated to the PUCCH resource in the primary uplink component carrier set by the base station apparatus 100. (also referred to as format) together with non-periodic channel state information (channel state information of PUSCH transmission format, also referred to as PUSCH based transmission format) and placed in the PUSCH resource in the primary uplink component carrier, to base station apparatus 100 Send.

  Moreover, the PUSCH resource in UCC2 is allocated by the base station apparatus 100 using the PDCCH including the channel state information transmission instruction, and the transmission of the periodic channel state information and the transmission of the aperiodic channel state information are the same. The mobile station apparatus 200 generated in the subframe places both periodic channel state information and aperiodic channel state information in the PUSCH resource in the UCC2 allocated by the base station apparatus 100, and sends it to the base station apparatus 100. Send.

  That is, the mobile station device 200 transmits the periodic channel state information that is to be transmitted by being arranged in the PUCCH resource in the primary uplink component carrier set by the base station device 100 together with the non-periodic channel state information. It arrange | positions to the PUSCH resource in an uplink component carrier, and transmits to the base station apparatus 100. At this time, the base station apparatus 100 does not allocate the PUSCH resource in UCC1 to the mobile station apparatus 200. That is, the base station apparatus 100 does not allocate the PUSCH resource in the primary uplink component carrier to the mobile station apparatus 200.

  Also, the base station apparatus 100 uses the PDCCH including the channel state information transmission instruction, the PUSCH resource in the UCC1 uses the PDCCH not including the channel state information transmission instruction, and the PUSCH resource in the UCC2 includes the same subframe. The mobile station apparatus 200 in which transmission of periodic channel state information and transmission of non-periodic channel state information occurs in the same subframe is performed as follows: periodic channel state information and aperiodic channel state information Are placed in the PUSCH resource in UCC1 allocated by the base station apparatus 100, and transmitted to the base station apparatus 100.

  That is, the mobile station apparatus 200 transmits the periodic channel state information that is to be transmitted by being arranged in the PUCCH resource in the primary uplink component carrier set by the base station apparatus 100 together with the aperiodic channel state information. It arrange | positions to the PUSCH resource in an uplink component carrier, and transmits to the base station apparatus 100.

  Also, the base station apparatus 100 uses the PDCCH that does not include the channel state information transmission instruction, and the PUSCH resource in the UCC1 uses the PDCCH that includes the channel state information transmission instruction, and the PUSCH resource in the UCC2 includes the same subframe. The mobile station apparatus 200 in which transmission of periodic channel state information and transmission of non-periodic channel state information occurs in the same subframe is performed as follows: periodic channel state information and aperiodic channel state information Are placed in the PUSCH resource in UCC1 allocated by the base station apparatus 100, and transmitted to the base station apparatus 100.

  That is, the mobile station apparatus 200 arranges both the periodic channel state information and the aperiodic channel state information in the PUSCH resource in the primary uplink component carrier set by the base station apparatus 100, and the base station apparatus 100 Send to.

  That is, the mobile station apparatus 200 uses the PUSCH resource in the primary uplink component carrier by the base station apparatus 100 even if the PDCCH to which the PUSCH resource in the secondary uplink component carrier includes the channel state information transmission instruction. Is assigned to the PUSCH resource in the primary uplink component carrier, and is transmitted to the base station apparatus 100, together with periodic channel state information and aperiodic channel state information. Here, the mobile station apparatus 200 can arrange the uplink data in the PUSCH resource in the UCC2 allocated by the base station apparatus 100 and transmit the uplink data to the base station apparatus 100.

  Also, the base station apparatus 100 uses the PDCCH including the transmission instruction of the channel state information, and the PUSCH resource in the UCC1 using the PDCCH including the transmission instruction of the channel state information in the same subframe. The mobile station apparatus 200 in which transmission of the periodic channel state information and the transmission of the aperiodic channel state information that have been assigned has occurred in the same subframe, the periodic channel state information and the aperiodic channel state information are transmitted. Both are arranged in the PUSCH resource in UCC 1 allocated by the base station apparatus 100 and transmitted to the base station apparatus 100.

  That is, the mobile station apparatus 200 arranges both periodic channel state information and (a plurality of) aperiodic channel state information in the PUSCH resource in the primary uplink component carrier set by the base station apparatus 100, It transmits to the base station apparatus 100. For example, the mobile station device 200 uses the primary component carrier set by the base station device 100 as the periodic channel state information and the aperiodic channel state information for each downlink signal transmitted in different downlink component carriers. And is transmitted to the base station apparatus 100. Here, the mobile station apparatus 200 can arrange uplink data in the PUSCH resource in UCC2 and transmit the uplink data to the base station apparatus 100.

  Here, when the mobile station apparatus 200 needs to transmit uplink data (transport block for UL-SCH) to the base station apparatus 100 (when uplink data is present in the buffer), the mobile station apparatus 200 is periodic. Both the channel state information, the aperiodic channel state information, and the uplink data can be arranged and transmitted on the PUSCH resource (UCC1) in the primary uplink component carrier allocated by the base station apparatus 100.

  In addition, when the mobile station apparatus 200 needs to transmit uplink data (transport block for UL-SCH) to the base station apparatus 100 (when uplink data is present in the buffer), the mobile station apparatus 200 performs periodic channel transmission. Both the state information, the aperiodic channel state information, and the uplink data can be transmitted by being arranged in the PUSCH resource in the secondary uplink component carrier (UCC2) allocated by the base station apparatus 100.

  Also, the mobile station apparatus 200 periodically transmits information indicating ACK / NACK in HARQ for downlink data (which may be a transport block for DL-SCH or PDSCH) to the base station apparatus 100. Channel state information, non-periodic channel state information, and information indicating ACK / NACK can be transmitted by being arranged in the PUSCH resource in the primary uplink component carrier (UCC1) allocated by the base station apparatus 100. .

  Also, the mobile station apparatus 200 periodically transmits information indicating ACK / NACK in HARQ for downlink data (which may be a transport block for DL-SCH or PDSCH) to the base station apparatus 100. Channel state information, aperiodic channel state information, and information indicating ACK / NACK can be transmitted by being arranged in the PUSCH resource in the secondary uplink component carrier (UCC2) allocated by the base station apparatus 100. .

  That is, when a plurality of PUSCH resources including PUSCH resources in the primary uplink component carrier are allocated in the same subframe, the mobile station device 200 displays periodic channel state information and aperiodic channel state information. The base station apparatus 100 allocates the PUSCH resource in the primary uplink component carrier assigned to the base station apparatus 100, and transmits the PUSCH resource to the base station apparatus 100.

  Also, when a plurality of PUSCH resources including PUSCH resources in the primary uplink component carrier are allocated in the same subframe, the mobile station apparatus 200 transmits uplink control information to the primary station allocated by the base station apparatus 100. It arrange | positions to the PUSCH resource in an uplink component carrier, and transmits to the base station apparatus 100.

  As described above, the mobile station apparatus 200 can periodically and periodically transmit channel state information for each downlink signal transmitted for each downlink component to the base station apparatus 100. Moreover, the mobile station apparatus 200 can transmit the channel state information with respect to one of the downlink signals transmitted for every downlink component to the base station apparatus 100 aperiodically.

  For example, in FIG. 7 and FIG. 8, the mobile station apparatus 200 includes both periodic channel state information for the downlink signal transmitted in DCC1 and aperiodic channel state information for the downlink signal transmitted in DCC3. , It can be arranged in the PUSCH resource allocated by the base station apparatus 100 and transmitted to the base station apparatus 100. Further, for example, the mobile station apparatus uses the base station apparatus 100 to transmit both periodic channel state information for the downlink signal transmitted in the DCC 4 and aperiodic channel state information for the downlink signal transmitted in the DCC 2. It can arrange | position to the allocated PUSCH resource and can transmit to the base station apparatus 100.

  Here, the mobile station apparatus 200 transmits a periodic channel state information (PUCCH transmission format, PUCCH based transmission format) and a non-periodic channel state information transmission format (PUSCH). The transmission format, PUCCH based transmission format) may be different. For example, the base station apparatus 100 uses RRC signaling to separately transmit a transmission format for transmitting periodic channel state information and a transmission format for transmitting non-periodic channel state information. 200 can be set.

  Also, the information amount (number of bits) of the periodic channel state information transmitted by the mobile station apparatus 200 may be different from the information amount (number of bits) of the non-periodic channel state information. The mobile station apparatus 200 transmits periodic channel state information and aperiodic channel state information having different amounts of information to the base station apparatus 100 using different transmission formats.

  For example, when transmitting periodic channel state information, the mobile station apparatus 200 can transmit channel state information with a smaller amount of information than when transmitting aperiodic channel state information. Further, for example, when transmitting the periodic channel state information, the mobile station device 200 can transmit the channel state information having a larger amount of information than when transmitting the aperiodic channel state information. That is, mobile station apparatus 200 arranges both periodic channel state information and aperiodic channel state information with different information amounts (number of bits) in the PUSCH resource allocated by base station apparatus 100, and It can be transmitted to the device 100.

  Similarly, for example, in FIG. 7 and FIG. 8, the mobile station apparatus 200 includes the aperiodic channel state information for the downlink signal transmitted in DCC1 and the aperiodic channel for the downlink signal transmitted in DCC3. Both the state information can be arranged in the PUSCH resource allocated by the base station apparatus 100 and transmitted to the base station apparatus 100. In addition, for example, the mobile station apparatus uses both the aperiodic channel state information for the downlink signal transmitted in the DCC 4 and the aperiodic channel state information for the downlink signal transmitted in the DCC 2, together with the base station apparatus 100. Can be arranged in the PUSCH resource allocated by the above and transmitted to the base station apparatus 100.

  Here, each transmission format (PUSCH transmission format, PUCCH based transmission format) when the mobile station apparatus 200 transmits (a plurality of) aperiodic channel state information may be different. For example, the base station apparatus 100 uses the RRC signaling separately for the transmission format when transmitting aperiodic channel state information for each downlink signal transmitted in different downlink component carriers, and uses the mobile station apparatus 200 can be set.

  Also, the information amount (number of bits) of each aperiodic channel state information for downlink signals transmitted by different downlink component carriers transmitted by the mobile station apparatus 200 may be different. The mobile station apparatus 200 transmits a plurality of aperiodic channel state information having different information amounts to the base station apparatus 100 using different transmission formats.

  For example, when the mobile station apparatus 200 transmits aperiodic channel state information for a downlink signal transmitted in a certain downlink component carrier, the mobile station apparatus 200 is transmitted in a downlink component carrier different from a certain downlink component carrier. It is possible to transmit channel state information with a smaller amount of information than when aperiodic channel state information for downlink signals is transmitted. Further, for example, when transmitting the aperiodic channel state information for the downlink signal transmitted in a certain downlink component carrier, the mobile station apparatus 200 transmits in a downlink component carrier different from a certain downlink component carrier. The channel state information having a larger amount of information can be transmitted than when aperiodic channel state information for the downlink signal is transmitted.

  That is, mobile station apparatus 200 arranges a plurality of aperiodic channel state information with different information amounts (number of bits) in the PUSCH resource allocated by base station apparatus 100 and transmits the information to base station apparatus 100. be able to.

  In FIG. 5, the mobile station apparatus 200 arranges periodic channel state (indicated by vertical lines) and non-periodic channel state information (indicated by oblique lines) in the PUSCH resources allocated by the base station apparatus 100. An example is shown. In FIG. 5, in addition to periodic channel state and aperiodic channel state information, uplink data (transport block for UL-SCH) (shown in white) is also arranged in the PUSCH resource. Is shown. In addition, FIG. 5 also shows DMRS (shown as filled) arranged in the PUSCH resource.

  As shown in FIG. 5, when the mobile station apparatus 200 arranges both periodic channel state information and aperiodic channel state information in a PUSCH resource, first, the periodic channel state information is displayed in the time axis direction. (12 DFT-S− except DMRS) after being arranged in (direction of row index in matrix before DFT) and arranged in all regions in the time axis direction (for example, all DFT-S-OFDM symbols) After periodic channel state information is arranged in the OFDM symbol), it is arranged in the direction of the frequency axis (direction of the column index in the matrix before DFT) (referred to as time-first mapping).

  Subsequently, the mobile station apparatus 200 arranges the non-periodic channel state information in the time axis direction, arranges it in all regions of the time axis method, and then arranges it in the frequency axis direction. Furthermore, the mobile station apparatus 200 arranges the uplink data in the time axis direction, arranges the uplink data in all regions in the time axis direction, and then arranges the uplink data in the frequency axis direction. Here, this matrix has the same configuration as the arrangement of resource elements. However, since this matrix is finally subjected to DFT processing, it is spread in the frequency direction.

  As described above, the mobile station apparatus 200 arranges both the periodic channel state information, the non-periodic channel state information, and the uplink data in the PUSCH resource allocated by the base station apparatus 100, whereby the base station apparatus 100 can facilitate extraction processing when extracting periodic channel state information, aperiodic channel state information, and uplink data. Here, in FIG. 5, as an example, the mobile station apparatus 200 first arranges periodic channel state information in the PUSCH resource, then arranges non-periodic channel state information in the PUSCH resource, and then continues. The uplink data is arranged in the PUSCH resource, but this order may be any order.

  Similarly, FIG. 6 illustrates an example in which the mobile station apparatus 200 arranges a plurality of aperiodic channel states (respectively indicated by vertical lines and diagonal lines) in the PUSCH resource allocated by the base station apparatus 100. Show. Similar to FIG. 5, FIG. 6 also shows uplink data (transport blocks for UL-SCH) (shown in white) and DMRS (shown in black) arranged in the PUSCH resource.

  As shown in FIG. 6, mobile station apparatus 200 arranges a plurality of aperiodic channel state information and uplink data for each downlink signal transmitted by a plurality of downlink component carriers together in a PUSCH resource. In this case, for example, first, in order from the smaller (larger) index assigned to the PDCCH including the transmission instruction of the channel state information, the aperiodic channel state information is changed to the time axis direction (row in the matrix before DFT). (In the direction of the index), and after being arranged in all the regions in the time axis direction (for example, all DFT-S-OFDM symbols) (periodic channels in 12 DFT-S-OFDM symbols excluding DMRS) After the state information is placed), the frequency axis direction (column index direction in the matrix before DFT) Arrangement will be.

  Subsequently, the mobile station apparatus 200 arranges the uplink data in the time axis direction, arranges the uplink data in all regions in the time axis direction, and then arranges the uplink data in the frequency axis direction. Similar to FIG. 5, the matrix shown in FIG. 6 has the same configuration as the arrangement of resource elements. However, since this matrix is finally subjected to DFT processing, it is spread in the frequency direction. Will be.

  In this way, the mobile station device 200 places a plurality of aperiodic channel state information and uplink data together in the PUSCH resource allocated by the base station device 100, so that the base station device 100 can The extraction process when extracting the aperiodic channel state information and the uplink data can be facilitated. Here, in FIG. 6, as an example, the mobile station apparatus 200 arranges a plurality of aperiodic channel state information in order from the smallest index assigned to the PDCCH including the channel state information transmission instruction. However, the order in which the aperiodic channel state information is arranged may be defined by other methods.

  For example, the mobile station apparatus 200 may arrange a plurality of aperiodic channel state information in order from the smaller (larger) index assigned to the downlink component carrier for the generated channel state information. The order in which the mobile station apparatus 200 arranges a plurality of non-periodic channel state information in the PUSCH resource is defined by a specific order, for example, according to specifications. Between the base station apparatus 100 and the mobile station apparatus 200, a method for arranging a plurality of non-periodic channel state information in the PUSCH resource is defined in advance and is known so that the base station apparatus 100 can transfer to the PUSCH resource. It is not necessary to transmit a control signal for instructing the allocation method to the mobile station apparatus 200, and it is possible to facilitate extraction processing when extracting a plurality of aperiodic channel state information and uplink data. .

  As described above, when the base station apparatus 100 and the mobile station apparatus 200 perform communication in a wide frequency band by using a plurality of component carriers in combination, the mobile station apparatus 200 When a PUSCH resource in a certain uplink component carrier set by 100 is allocated, aperiodic channel state information is arranged in a PUSCH resource in a certain uplink component carrier, and the base station By transmitting to the apparatus 100, the non-periodic channel state information extraction process by the base station apparatus 100 can be facilitated.

  In addition, when the mobile station apparatus 200 is assigned a PUSCH resource in a specific uplink component carrier set by the base station apparatus 100, the mobile station apparatus 200 has periodic channel state information and an aperiodic channel. By placing the PUSCH resource in a specific uplink component carrier and transmitting the PUSCH resource to the base station apparatus 100, it is possible to facilitate the aperiodic channel state information extraction processing by the base station apparatus 100.

  The base station apparatus 100 can perform efficient downlink scheduling based on aperiodic channel state information transmitted from the mobile station apparatus 200. Furthermore, the base station apparatus 100 can perform efficient downlink scheduling based on periodic channel state information and aperiodic channel state information transmitted from the mobile station apparatus 200.

  The embodiment described above is also applied to an integrated circuit mounted on the base station apparatus 100 and the mobile station apparatus 200. In the embodiment described above, each function in the base station apparatus 100 and a program for realizing each function in the mobile station apparatus 200 are recorded on a computer-readable recording medium, and recorded on this recording medium. The base station apparatus 100 and the mobile station apparatus 200 may be controlled by causing the computer system to read and execute the program. Here, the “computer system” includes an OS and hardware such as peripheral devices.

  The “computer-readable recording medium” refers to a storage device such as a flexible medium, a magneto-optical disk, a portable medium such as a ROM and a CD-ROM, and a hard disk incorporated in a computer system. Further, the “computer-readable recording medium” dynamically holds a program for a short time, like a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line. In this case, it is also assumed that a server that holds a program for a certain time, such as a volatile memory inside a computer system that serves as a server or client. The program may be a program for realizing a part of the functions described above, and may be a program capable of realizing the functions described above in combination with a program already recorded in a computer system.

  The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and the design and the like within the scope of the present invention are also within the scope of the claims. include.

100 base station apparatus 101 data control section 102 transmission data modulation section 103 radio section 104 scheduling section 105 channel estimation section 106 reception data demodulation section 107 data extraction section 108 upper layer 109 antenna 110 radio resource control section 200 mobile station apparatus 201 data control section 202 Transmission data modulation section 203 Radio section 204 Scheduling section 205 Channel estimation section 206 Reception data demodulation section 207 Data extraction section 208 Upper layer 209 Antenna 210 Radio resource control section

Claims (10)

A mobile communication system in which a base station apparatus and a mobile station apparatus communicate using a plurality of component carriers,
The base station device
A specific downlink component carrier is set in the mobile station device,
Notifying the mobile station apparatus of a downlink control information format including a transmission instruction of channel state information,
The mobile station device
When an PUSCH resource in an uplink component carrier corresponding to the specific downlink component carrier is allocated,
Even if the PUSCH resource in the uplink component carrier other than the uplink component carrier corresponding to the certain downlink component carrier is allocated by the downlink control information format including the transmission instruction of the channel state information. ,
The mobile communication system, wherein the channel state information is arranged in a PUSCH resource in an uplink component carrier corresponding to the specific downlink component carrier, and is transmitted to the base station apparatus. A mobile communication system in which a base station apparatus and a mobile station apparatus communicate using a plurality of component carriers,
The base station device
A specific downlink component carrier is set in the mobile station device,
Transmitting RRC signaling including an instruction to transmit periodic channel state information to the mobile station apparatus;
Notifying the mobile station apparatus of a downlink control information format including a transmission instruction of aperiodic channel state information,
The mobile station device
When the transmission of the periodic channel state information and the transmission of the aperiodic channel state information occur in the same subframe, the PUSCH resource in the uplink component carrier corresponding to the certain downlink component carrier is If assigned,
For example, a PUSCH resource in an uplink component carrier other than an uplink component carrier corresponding to the certain downlink component carrier is allocated according to the downlink control information format including a transmission instruction of the aperiodic channel state information. Even if
Both the periodic channel state information and the aperiodic channel state information are arranged in a PUSCH resource in an uplink component carrier corresponding to the certain downlink component carrier, and transmitted to the base station apparatus. A mobile communication system. A base station apparatus in a mobile communication system in which a base station apparatus and a mobile station apparatus communicate using a plurality of component carriers,
Means for setting a specific downlink component carrier in the mobile station device;
Means for notifying the mobile station apparatus of a downlink control information format including a transmission instruction of channel state information;
When allocating PUSCH resources in an uplink component carrier corresponding to the specific downlink component carrier,
Even if the PUSCH resource in the uplink component carrier other than the uplink component carrier corresponding to the certain downlink component carrier is allocated by the downlink control information format including the transmission instruction of the channel state information,
Means for arranging the channel state information in a PUSCH resource in an uplink component carrier corresponding to the specific downlink component carrier and receiving the information from the mobile station device;
A base station apparatus comprising: A base station apparatus in a mobile communication system in which a base station apparatus and a mobile station apparatus communicate using a plurality of component carriers,
Means for setting a specific downlink component carrier in the mobile station device;
Means for transmitting RRC signaling including a transmission instruction of periodic channel state information to the mobile station apparatus;
Means for notifying the mobile station apparatus of a downlink control information format including an instruction to transmit aperiodic channel state information;
In the mobile station apparatus, when the transmission of the periodic channel state information and the transmission of the aperiodic channel state information occur in the same subframe, the uplink corresponding to the specific downlink component carrier When PUSCH resources are allocated in the component carrier,
For example, PUSCH resources in uplink component carriers other than the uplink component carrier corresponding to the specific downlink component carrier are allocated by the downlink control information format including the transmission instruction of the aperiodic channel state information. Even if
Means for arranging and receiving from the mobile station apparatus both the periodic channel state information and the non-periodic channel state information in a PUSCH resource in an uplink component carrier corresponding to the certain downlink component carrier When,
A base station apparatus comprising: A mobile station apparatus in a mobile communication system in which a base station apparatus and a mobile station apparatus communicate using a plurality of component carriers,
Means for setting a specific downlink component carrier by the base station apparatus;
Means for notifying the base station apparatus of a downlink control information format including a channel state information transmission instruction;
When an PUSCH resource in an uplink component carrier corresponding to the specific downlink component carrier is allocated,
Even if the PUSCH resource in the uplink component carrier other than the uplink component carrier corresponding to the certain downlink component carrier is allocated by the downlink control information format including the transmission instruction of the channel state information. ,
Means for arranging the channel state information in a PUSCH resource in an uplink component carrier corresponding to the certain downlink component carrier, and transmitting to the base station apparatus;
A mobile station apparatus comprising: A mobile station apparatus in a mobile communication system in which a base station apparatus and a mobile station apparatus communicate using a plurality of component carriers,
Means for setting a specific downlink component carrier by the base station apparatus;
Means for transmitting RRC signaling including an instruction to transmit periodic channel state information by the base station apparatus;
Means for notifying a downlink control information format including a transmission instruction of aperiodic channel state information by the base station apparatus;
When the transmission of the periodic channel state information and the transmission of the aperiodic channel state information occur in the same subframe, the PUSCH resource in the uplink component carrier corresponding to the specific downlink component carrier is changed. If assigned,
For example, a PUSCH resource in an uplink component carrier other than an uplink component carrier corresponding to the certain downlink component carrier is allocated according to the downlink control information format including a transmission instruction of the aperiodic channel state information. Even if
Means for allocating both the periodic channel state information and the aperiodic channel state information to a PUSCH resource in an uplink component carrier corresponding to the specific downlink component carrier and transmitting the same to the base station apparatus When,
A mobile station apparatus comprising: A communication method of a base station apparatus in a mobile communication system in which a base station apparatus and a mobile station apparatus communicate using a plurality of component carriers,
A specific downlink component carrier is set in the mobile station device,
Notifying the mobile station apparatus of a downlink control information format including a transmission instruction of channel state information,
When allocating PUSCH resources in an uplink component carrier corresponding to the specific downlink component carrier,
Even if the PUSCH resource in the uplink component carrier other than the uplink component carrier corresponding to the certain downlink component carrier is allocated by the downlink control information format including the transmission instruction of the channel state information,
The channel state information is arranged in a PUSCH resource in an uplink component carrier corresponding to the certain downlink component carrier, and is received from the mobile station apparatus. A communication method of a base station apparatus in a mobile communication system in which a base station apparatus and a mobile station apparatus communicate using a plurality of component carriers,
A specific downlink component carrier is set in the mobile station device,
Transmitting RRC signaling including an instruction to transmit periodic channel state information to the mobile station apparatus;
Notifying the mobile station apparatus of a downlink control information format including a transmission instruction of aperiodic channel state information,
In the mobile station apparatus, when the transmission of the periodic channel state information and the transmission of the aperiodic channel state information occur in the same subframe, the uplink corresponding to the specific downlink component carrier When PUSCH resources are allocated in the component carrier,
For example, PUSCH resources in uplink component carriers other than the uplink component carrier corresponding to the specific downlink component carrier are allocated by the downlink control information format including the transmission instruction of the aperiodic channel state information. Even if
Both the periodic channel state information and the non-periodic channel state information are arranged in a PUSCH resource in an uplink component carrier corresponding to the specific downlink component carrier and received from the mobile station apparatus. A communication method characterized by the above. A communication method of a mobile station apparatus in a mobile communication system in which a base station apparatus and a mobile station apparatus communicate using a plurality of component carriers,
A certain downlink component carrier is set by the base station device,
A downlink control information format including a channel state information transmission instruction is notified by the base station apparatus,
When an PUSCH resource in an uplink component carrier corresponding to the specific downlink component carrier is allocated,
Even if the PUSCH resource in the uplink component carrier other than the uplink component carrier corresponding to the certain downlink component carrier is allocated by the downlink control information format including the transmission instruction of the channel state information. ,
The channel state information is arranged in a PUSCH resource in an uplink component carrier corresponding to the certain downlink component carrier, and is transmitted to the base station apparatus. A communication method of a mobile station apparatus in a mobile communication system in which a base station apparatus and a mobile station apparatus communicate using a plurality of component carriers,
A certain downlink component carrier is set by the base station device,
RRC signaling including an instruction to transmit periodic channel state information is transmitted by the base station apparatus,
A downlink control information format including a non-periodic channel state information transmission instruction is notified by the base station apparatus,
When the transmission of the periodic channel state information and the transmission of the aperiodic channel state information occur in the same subframe, the PUSCH resource in the uplink component carrier corresponding to the specific downlink component carrier is changed. If assigned,
For example, a PUSCH resource in an uplink component carrier other than an uplink component carrier corresponding to the certain downlink component carrier is allocated according to the downlink control information format including a transmission instruction of the aperiodic channel state information. Even if
Both the periodic channel state information and the aperiodic channel state information are arranged in a PUSCH resource in an uplink component carrier corresponding to the certain downlink component carrier, and transmitted to the base station apparatus. A communication method characterized by the above.