JP5850367B2 - Mobile station apparatus, base station apparatus, radio communication method, and integrated circuit - Google Patents

Description

  The present invention relates to a radio communication system, a mobile station apparatus, a base station apparatus, a radio communication method, and an integrated circuit.

  The evolution of wireless access methods and wireless networks for cellular mobile communications (hereinafter referred to as “Long Term Evolution (LTE)” or “Evolved Universal Terrestrial Radio Access (EUTRA)”) is the third generation partnership project (3rd Generation Partnership). Project: 3GPP). In LTE, an orthogonal frequency division multiplexing (OFDM) method, which is multicarrier transmission, is used as a communication method for wireless communication (downlink) from a base station device to a mobile station device. Further, as a communication system for radio communication (uplink) from the mobile station apparatus to the base station apparatus, an SC-FDMA (Single-Carrier Frequency Division Multiple Access) system that is single carrier transmission is used.

  In LTE, an ACK (Acknowledgement) / NACK (Negative Acknowledgement) (HARQ-ACK) indicating whether or not the mobile station apparatus has successfully decoded downlink data received on a physical downlink shared channel (PDSCH). Are also transmitted using a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH). If the mobile station apparatus does not have PUSCH radio resources assigned when transmitting ACK / NACK, ACK / NACK is transmitted on PUCCH. If the mobile station apparatus is allocated PUSCH radio resources when transmitting ACK / NACK, ACK / NACK is transmitted on PUSCH. In LTE, when transmitting ACK / NACK of 3 bits or more on PUSCH, ACK / NACK is Reed-Muller encoded to generate a 32-bit ACK / NACK encoded bit sequence.

  In LTE-A, when ACK / NACK with more than 12 bits is transmitted on PUCCH, it is considered that the ACK / NACK sequence is divided into two ACK / NACK sequences and the two ACK / NACK segments are separately read-Muller encoded (Non-Patent Document 1).

  In 3GPP, a radio access method and a radio network (hereinafter referred to as “Long Term Evolution-Advanced (LTE-A)” or “Advanced Evolved”) that realizes higher-speed data communication using a frequency band wider than LTE. Universal Terrestrial Radio Access (A-EUTRA) ”has been studied to have backward compatibility with LTE. That is, the LTE-A base station apparatus performs radio communication simultaneously with both LTE-A and LTE mobile station apparatuses, and the LTE-A mobile station apparatus performs radio communication with both the LTE-A and LTE base station apparatuses. LTE-A uses the same channel structure as LTE.

  In LTE-A, a plurality of frequency bands (hereinafter referred to as “Component Carrier (CC)”) or cells having the same channel structure as LTE are used as one frequency band (broadband frequency band). Techniques (also called carrier aggregation, cell aggregation, etc.) have been proposed. For example, in communication using frequency band aggregation, a base station apparatus transmits a plurality of uplink grants to a mobile station apparatus at the same time using one or a plurality of downlink component carriers (DL CC) or cells. The mobile station apparatus can use a plurality of uplink component carriers (UL CC) or cell radio resources allocated by a plurality of uplink grants received simultaneously to PUSCH can be transmitted simultaneously.

  In LTE-A, when transmitting a plurality of ACK / NACK for each of a plurality of PDSCHs simultaneously received by the mobile station apparatus to the base station apparatus, uplink is performed using one PUSCH among the plurality of PUSCHs transmitted by the mobile station apparatus. It has been studied to transmit both link data (information channel in an upper layer) (Uplink Shared Channel: UL-SCH) and a plurality of ACKs / NACKs (Non-Patent Document 2).

"Way forward on Supporting ACK / NAK Payload Larger than 11 Bits in Rel-10 TDD", 3GPP TSG RAN WG1 Meeting # 62bis, R1-105776, October 11-15, 2010. "UCI Transmission in the Presence of UL-SCH Data", 3GPP TSGRAN WG1 Meeting # 61, R1-103067, May 10-14, 2010.

  However, the conventional technique does not disclose a detailed method for transmitting ACK / NACK having more than 11 bits on a single PUSCH.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a radio communication system, a mobile station, and a mobile station apparatus that can efficiently transmit ACK / NACK more than 11 bits on a physical uplink channel. An object is to provide a device, a base station device, a wireless communication method, and an integrated circuit.

  (1) In order to achieve the above object, the present invention takes the following measures. That is, the radio communication system of the present invention is a radio communication system in which a base station apparatus and a mobile station apparatus communicate with each other, and the mobile station apparatus includes a plurality of ACKs for a plurality of transport blocks received from the base station apparatus. Generate two ACK / NACK sequences from / NACK, encode the two ACK / NACK sequences separately, generate two code bit sequences, and transmit the ACK / NACK through a physical uplink control channel Depending on whether to transmit on the uplink shared channel, the two code bit sequences are concatenated in different ways, a signal generated from the concatenated code bit sequence is transmitted to the base station device, the base station device, The signal is received from the mobile station apparatus, and ACK / NACK decoding processing is performed from the received signal.

  (2) Moreover, the mobile station apparatus of the present invention is a mobile station apparatus that communicates with a base station apparatus, and includes two ACK / NACKs from a plurality of ACK / NACKs for a plurality of transport blocks received from the base station apparatus. Generating a sequence, encoding the two ACK / NACK sequences separately, generating two code bit sequences, and transmitting the ACK / NACK on a physical uplink control channel or a physical uplink shared channel Accordingly, the two code bit sequences are concatenated by different methods, and a signal generated from the concatenated code bit sequence is transmitted to the base station apparatus.

  (3) Further, in the mobile station apparatus of the present invention, the concatenating method includes a method of alternately concatenating the two code bit sequences in units of a predetermined number of bits.

  (4) Further, in the mobile station apparatus of the present invention, the concatenating method includes a method of concatenating the other code bit sequence to the least significant bit of one code bit sequence of the two code bit sequences. Features.

  (5) Moreover, the base station apparatus of this invention is a base station apparatus which communicates with a mobile station apparatus, Comprising: The said ACK / NACK with respect to several transport blocks which the said mobile station apparatus received from the said base station apparatus Generating two ACK / NACK sequences, encoding the two ACK / NACK sequences separately, generating two code bit sequences, and transmitting the ACK / NACK through a physical uplink control channel or physical uplink The two code bit sequences are concatenated by different methods depending on whether transmission is performed on a shared channel, and a signal generated from the concatenated code bit sequence is received.

  (6) The radio communication method of the present invention is a radio communication method used for a mobile station apparatus communicating with a base station apparatus, and a plurality of ACK / NACKs for a plurality of transport blocks received from the base station apparatus. Generating two ACK / NACK sequences, encoding the two ACK / NACK sequences separately, generating two code bit sequences, and transmitting the ACK / NACK over a physical uplink control channel or physically Depending on whether transmission is performed on an uplink shared channel, the two code bit sequences are concatenated by different methods, and a signal generated from the concatenated code bit sequence is transmitted to a base station apparatus. It is characterized by.

  (7) In the wireless communication method of the present invention, the concatenating method includes a method of alternately concatenating the two code bit sequences in units of a predetermined number of bits.

  (8) In the wireless communication method of the present invention, the concatenating method includes a method of concatenating the other code bit sequence to the least significant bit of one code bit sequence of the two code bit sequences. Features.

  (9) Further, the wireless communication method of the present invention is a wireless communication method used for a base station device communicating with a mobile station device, wherein the mobile station device receives a plurality of transport blocks received from the base station device. Generate two ACK / NACK sequences from a plurality of ACK / NACKs, separately encode the two ACK / NACK sequences, generate two code bit sequences, and transmit the ACK / NACK in a physical uplink control channel Characterized in that it comprises means for connecting the two code bit sequences in different ways depending on whether they are transmitted or transmitted on a physical uplink shared channel, and receiving a signal generated from the concatenated code bit sequences. To do.

  (10) An integrated circuit according to the present invention is an integrated circuit used in a mobile station apparatus that communicates with a base station apparatus, and includes two ACK / NACKs for a plurality of transport blocks received from the base station apparatus. A function of generating two ACK / NACK sequences, a function of separately encoding the two ACK / NACK sequences and generating two code bit sequences, and whether the ACK / NACK is transmitted through a physical uplink control channel A function of concatenating the two code bit sequences in different manners depending on whether transmission is performed using an uplink shared channel, and transmitting a signal generated from the concatenated code bit sequences to the base station apparatus. Features.

  (11) In the integrated circuit of the present invention, the concatenating method includes a method of alternately concatenating the two code bit sequences in units of a predetermined number of bits.

  (12) In the integrated circuit of the present invention, the concatenating method includes a method of concatenating the other code bit sequence to the least significant bit of one code bit sequence of the two code bit sequences. And

  (13) Further, the integrated circuit of the present invention is a wireless communication method used for a base station apparatus that communicates with a mobile station apparatus, and the mobile station apparatus applies to a plurality of transport blocks received from the base station apparatus. Two ACK / NACK sequences are generated from a plurality of ACK / NACKs, the two ACK / NACK sequences are encoded separately, two code bit sequences are generated, and the ACK / NACK is transmitted on a physical uplink control channel A function of connecting the two code bit sequences in different manners depending on whether transmission is performed on a physical uplink shared channel and receiving a signal generated from the connected code bit sequences. To do.

  According to the present invention, the mobile station apparatus can efficiently transmit ACK / NACK more than 11 bits on the physical uplink channel.

It is a conceptual diagram of the radio | wireless communications system of this invention. It is a figure which shows an example of the cell aggregation process of this invention. It is a figure which shows an example of a structure of the radio | wireless frame in the radio | wireless communications system of TDD of this invention. It is the schematic which shows an example of a structure of the downlink sub-frame of this invention. It is the schematic which shows an example of a structure of the uplink sub-frame of this invention. It is a schematic block diagram which shows the structure of the mobile station apparatus 1 of this invention. It is a schematic block diagram which shows the structure of the encoding part 1071 of this invention. It is a table | surface which shows the base sequence Mi _{, n} of this invention. Is a diagram illustrating an example of a coded bit q _i concatenated ACK / NACK of the present invention. It is a figure which shows an example of the method of the interleaving of the encoding symbol of this invention. It is a schematic block diagram which shows the structure of the PUCCH production | generation part 1075 of this invention. It is a schematic block diagram which shows the structure of the base station apparatus 3 of this invention. It is a flowchart which shows an example of operation | movement of the mobile station apparatus 1 of this invention. It is a flowchart which shows an example of operation | movement of the base station apparatus 3 of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  First, the physical channel of the present invention will be described.

  FIG. 1 is a conceptual diagram of a wireless communication system of the present invention. In FIG. 1, the radio communication system includes mobile station apparatuses 1 </ b> A to 1 </ b> C and a base station apparatus 3. FIG. 1 shows a synchronization signal (SS), a downlink reference signal (DL RS), a physical broadcast channel in radio communication (downlink) from the base station device 3 to the mobile station devices 1A to 1C. (Physical Broadcast Channel: PBCH), Physical Downlink Control Channel (Physical Downlink Control Channel: PDCCH), Physical Downlink Shared Channel (PDSCH), Physical Multicast Channel (Physical Multicast Channel: PMCH), Physical Control Format This indicates that an indicator channel (Physical Control Format Indicator Channel: PCFICH) and a physical HARQ indicator channel (Physical Hybrid ARQ Indicator Channel: PHICH) are allocated.

  FIG. 1 shows an uplink reference signal (UL RS), a physical uplink control channel (PUCCH) in radio communication (uplink) from the mobile station apparatuses 1A to 1C to the base station apparatus 3. ), A physical uplink shared channel (PUSCH), and a physical random access channel (PRACH). Hereinafter, the mobile station apparatuses 1A to 1C are referred to as the mobile station apparatus 1.

  The synchronization signal is a signal used for the mobile station apparatus 1 to synchronize the downlink frequency domain and time domain. The downlink reference signal is used by the mobile station apparatus 1 to synchronize the downlink frequency domain and time domain, the mobile station apparatus 1 is used to measure downlink reception quality, or the mobile station This is a signal used by the device 1 to perform PDSCH or PDCCH propagation path correction.

  The PBCH is a physical channel used to broadcast control parameters (system information) (Broadcast Channel: BCH) commonly used in the mobile station apparatus 1. PBCH is transmitted at intervals of 40 ms. The mobile station apparatus 1 performs blind detection at 40 ms intervals.

  The PDCCH is a physical channel used for transmitting downlink control information (Downlink Control Information: DCI) such as downlink assignment (also referred to as downlink assignment or downlink grant) and uplink grant (uplink grant). The downlink assignment includes PDSCH, that is, information on a modulation scheme and a coding rate for downlink data (Modulation and Coding Scheme: MCS), information indicating radio resource allocation, and the like. The uplink grant includes PUSCH, that is, information related to a modulation scheme and a coding rate for uplink data, information indicating radio resource allocation, and the like.

  A plurality of formats are used for the downlink control information. The format of the downlink control information is called a DCI format (DCI format). The DCI format of the downlink assignment is a DCI format 1A used when the base station apparatus 3 transmits PDSCH using one transmission antenna port or transmission diversity, and the base station apparatus 3 uses MIMO SM (Multiple Input Multiplex) for PDSCH. A DCI format 2 used when transmitting a plurality of downlink data (Downlink Shared Channel: DL-SCH) using Output Spatial Multiplexing is prepared.

  The DCI format of the uplink grant is a DCI format 0 that is used when the mobile station apparatus 1 transmits PUSCH using one transmission antenna port, and the mobile station apparatus uses a MIMO SM for the PUSCH and a plurality of uplink data ( A DCI format 0A used for transmitting Uplink Shared Channel (UL-SCH) is prepared.

  MIMO SM is a technique in which a plurality of signals are multiplexed and transmitted / received on a plurality of spatial dimension channels realized by a plurality of transmission antenna ports and a plurality of reception antenna ports. Here, the antenna port indicates a logical antenna used for signal processing, and one antenna port may be configured by one physical antenna or may be configured by a plurality of physical antennas. Also good.

  On the transmission side using MIMO SM, a process (referred to as precoding) for forming an appropriate spatial channel is performed for a plurality of signals, and the plurality of signals subjected to the precoding process are processed. Are transmitted using a plurality of transmission antennas. On the receiving side using MIMO SM, processing for appropriately separating signals multiplexed on a spatial dimension channel is performed on a plurality of signals received using a plurality of receiving antennas.

  The base station apparatus 3 arranges the number of uplink data transmitted on the PUSCH scheduled by the base station apparatus 3, the number of regions (hereinafter referred to as layers or layers) spatially multiplexed in the PUSCH, and the uplink data. Information indicating the type of precoding performed by the mobile station apparatus 1 is included in the DCI format 0A and transmitted. Based on the DCI format 0A received from the base station device 3, the mobile station apparatus 1 transmits the number of uplink data transmitted by the PUSCH corresponding to the DCI format 0A, the number of layers spatially multiplexed in the PUSCH, and the uplink data. The layer in which is placed and the type of precoding are determined.

  PDSCH is a physical channel that is not broadcast on a paging channel (PCH) or PBCH, that is, used to transmit system information other than BCH and downlink data. The PMCH is a physical channel used for transmitting a multicast channel (MCH) that is information related to MBMS (Multimedia Broadcast and Multicast Service).

  PCFICH is a physical channel used for transmitting information indicating an area where a PDCCH is arranged. The PHICH is a physical channel used for transmitting a HARQ indicator indicating success or failure of decoding of uplink data received by the base station apparatus 3.

  When the base station apparatus 3 successfully decodes the uplink data included in the PUSCH, the HARQ indicator indicates ACK (ACKnowledgement), and when the base station apparatus 3 fails to decode the uplink data included in the PUSCH, The HARQ indicator indicates NACK (Negative ACKnowledgement). In addition, when indicating the success or failure of decoding for each of a plurality of uplink data included in the same PUSCH, a plurality of HARQ indicators are transmitted using a plurality of PHICHs.

  The uplink reference signal is used for the base station device 3 to synchronize the uplink time domain, the base station device 3 is used to measure uplink reception quality, or the base station device 3 It is a signal used to perform propagation channel correction for PUSCH and PUCCH. The uplink reference signal is subjected to code spreading using a CAZAC (Constant Amplitude and Zero Auto-Correlation) sequence in a radio resource divided assuming SC-FDMA.

  The CAZAC sequence is a sequence having a constant amplitude and excellent autocorrelation characteristics in the time domain and the frequency domain. Since the amplitude is constant in the time domain, the PAPR (Peak to Average Power Ratio) can be kept low. A cyclic delay is applied to the DMRS in the time domain. This cyclic delay in the time domain is called a cyclic shift. The cyclic shift corresponds to the phase rotation of the CAZAC sequence in sub-carrier units in the frequency domain.

  In the uplink reference signal, a DMRS (Demodulation Reference Signal) that is time-multiplexed with PUSCH or PUCCH and used for channel compensation of PUSCH and PUCCH, and base station apparatus 3 that is transmitted independently of PUSCH and PUCCH. There is an SRS (Sounding Reference Signal) used to estimate the state of the uplink propagation path. In DMRS, not only cyclic shift but also spreading code (Orthogonal Cover Code: OCC) in the time domain is used.

  The PUCCH includes channel quality information indicating downlink channel quality, a scheduling request (SR) indicating a request for uplink radio resource allocation, and downlink data received by the mobile station apparatus 1. This is a physical channel used for transmitting uplink control information (UCI) that is information used for communication control such as ACK / NACK (also referred to as HARQ-ACK) indicating success or failure of decoding.

  The channel quality information includes a channel quality indicator (CQI), a rank indicator (Rank Indicator: RI), and a precoding matrix indicator (PMI). The CQI is information indicating channel quality for changing radio transmission parameters such as an error correction scheme of a downlink physical channel, an error correction coding rate, and a data modulation multi-level number.

  The RI is a signal sequence unit (stream) that pre-processes a transmission signal sequence that the mobile station apparatus 1 requests the base station apparatus 3 in advance when a plurality of downlink data is spatially multiplexed and transmitted in the MIMO SM scheme in the downlink. ) (Rank). The PMI is precoding information for preprocessing a transmission signal sequence that the mobile station apparatus 1 requests the base station apparatus 3 when performing spatial multiplexing transmission in the MIMO SM scheme.

  PUSCH is a physical channel used for transmitting uplink data and uplink control information. When the mobile station apparatus transmits uplink control information, if the radio resource of PUSCH is not allocated, the uplink control information is transmitted on PUCCH. If the mobile station apparatus is assigned radio resources for PUSCH when transmitting uplink control information, the uplink control information is transmitted using PUSCH. In addition, when the radio | wireless resource of several PUSCH is allocated, uplink control information is transmitted by any one PUSCH.

  PRACH is a physical channel used for transmitting a random access preamble. The PRACH is mainly used for the mobile station apparatus 1 to synchronize with the base station apparatus 3 in the time domain, and is also used for initial access, handover, reconnection request, and uplink radio resource allocation request. It is done.

  Uplink data (UL-SCH), downlink data (DL-SCH), multicast channel (MCH), PCH, BCH, and the like are transport channels. A unit for transmitting uplink data by PUSCH and a unit for transmitting downlink data by PDSCH are called transport blocks. The transport block is a unit handled in a MAC (Media Access Control) layer, and HARQ (retransmission) control is performed for each transport block.

  In the physical layer, a transport block is associated with a code word (Cord), and signal processing such as encoding is performed for each code word. The transport block size is the number of bits (payload size) of the transport block. The mobile station device 1 includes the number of physical resource blocks (PRB) indicated by information indicating the radio resource allocation of PUSCH or PDSCH included in the uplink grant or downlink assignment, and the modulation scheme of PUSCH or PDSCH. The transport block size is recognized from information on the coding rate (MCS or MCS & RV (Redundancy Version)).

  Hereinafter, cell aggregation (carrier aggregation) of the present invention will be described.

  FIG. 2 is a diagram illustrating an example of cell aggregation processing according to the present invention. In FIG. 2, the horizontal axis represents the frequency domain, and the vertical axis represents the time domain. In the cell aggregation process shown in FIG. 2, three serving cells (serving cell 1, serving cell 2, and serving cell 3) are aggregated. One serving cell among a plurality of aggregated serving cells is a primary cell (Pcell). The primary cell is a serving cell having the same function as the LTE cell.

  The serving cell excluding the primary cell is a secondary cell (Scell). The secondary cell is a cell whose function is more limited than that of the primary cell, and is mainly used for transmission / reception of PDSCH and / or PUSCH. For example, the mobile station apparatus 1 performs random access only in the primary cell. Moreover, the mobile station apparatus 1 does not need to receive the paging and system information transmitted by PBCH and PDSCH of a secondary cell.

  The carrier corresponding to the serving cell in the downlink is a downlink component carrier (Downlink Component Carrier: DL CC), and the carrier corresponding to the serving cell in the uplink is an uplink component carrier (Uplink Component Carrier: UL CC). The carrier corresponding to the primary cell in the downlink is a downlink primary component carrier (DL PCC), and the carrier corresponding to the primary cell in the uplink is an uplink primary component carrier (UL PCC). ). The carrier corresponding to the secondary cell in the downlink is a downlink secondary component carrier (DL SCC), and the carrier corresponding to the secondary cell in the uplink is an uplink secondary component carrier (UL SCC). ).

  The base station apparatus 3 always sets both DL PCC and UL PCC as the primary cell. Moreover, the base station apparatus 3 can set only DL SCC or both DLSCC and UL SCC as a secondary cell.

  In addition, the serving cell frequency or carrier frequency is called a serving frequency or serving carrier frequency, the primary cell frequency or carrier frequency is called a primary frequency or primary carrier frequency, and the secondary cell frequency or carrier frequency is a secondary frequency or secondary carrier frequency. It is called frequency.

  The mobile station device 1 and the base station device 3 first start communication using one serving cell, and after starting communication, the base station device 3 uses one RRC signal (Radio Resource Control signal) to A set of a primary cell and one or more secondary cells is set in the mobile station apparatus 1.

  In FIG. 2, the serving cell 1 is a primary cell, and the serving cell 2 and the serving cell 3 are secondary cells. Both DL PCC and UL PCC are set in serving cell 1 (primary cell), and both DL SCC-1 and UL SCC-2 are set in serving cell 2 (secondary cell), and serving cell 3 (secondary cell). In the cell), only DL SCC-2 is set.

  Channels used in DL CC and UL CC have the same channel structure as LTE. In FIG. 2, each DL CC includes a region where PHICH, PCFICH, and PDCCH indicated by hatched regions, and a region where PDSCH indicated by dots hatched regions are arranged. PHICH, PCFICH, and PDCCH are frequency multiplexed and / or time multiplexed. The region where PHICH, PCFICH and PDCCH are frequency multiplexed and / or time multiplexed and the region where PDSCH is arranged are time multiplexed. In each UL CC, a region where a PUCCH indicated by a gray region is arranged and a region where a PUSCH indicated by a region hatched by a horizontal line is frequency-multiplexed.

  In cell aggregation, a maximum of one PDSCH can be transmitted in one serving cell (DL CC), and a maximum of one PUSCH can be transmitted in one serving cell (UL CC). In FIG. 2, up to three PDSCHs can be transmitted simultaneously using three DL CCs, and up to two PUSCHs can be transmitted simultaneously using two UL CCs.

  In the cell aggregation, the downlink grant including information indicating the PDSCH radio resource allocation of the primary cell and the uplink grant including information indicating the PUSCH radio resource allocation of the primary cell are transmitted on the primary cell PDCCH. Is done. One serving cell in which an uplink grant including information indicating allocation of radio resources of PDSCH of secondary cells and information indicating allocation of radio resources of PUSCH of secondary cells is transmitted on the PDCCH is a base station apparatus. 3 is set. This setting may be different for each mobile station apparatus 1.

  The mobile station apparatus 1 is set when a downlink assignment including information indicating PDSCH radio resource allocation of a certain secondary cell and an uplink grant including information indicating PUSCH radio resource allocation are transmitted in different serving cells. In this case, the secondary cell does not decode the PDCCH. For example, in FIG. 2, a downlink assignment including information indicating the PDSCH radio resource allocation of the serving cell 2 and an uplink grant including information indicating the PUSCH radio resource allocation are transmitted by the serving cell 1, and the PDSCH of the serving cell 3 is transmitted. When it is set that the downlink grant including information indicating the radio resource allocation and the uplink grant including information indicating the radio resource allocation of the PUSCH are transmitted by the serving cell 3, the mobile station apparatus 1 and the serving cell 1 The serving cell 3 decodes the PDCCH, and the serving cell 2 does not decode the PDCCH.

  The base station apparatus 3 determines whether or not the downlink assignment and the uplink grant include a carrier indicator (Carrier Indicator) that is information indicating a serving cell to which the downlink assignment and the uplink grant allocate the PDSCH or PUSCH radio resource. Set for each serving cell. The PHICH is transmitted in the serving cell to which the uplink grant including the information indicating the allocation of the PUSCH radio resource in which the PHICH indicates ACK / NACK is transmitted.

  In a radio communication system of FDD (Frequency Division Duplex), DL CC and UL CC corresponding to a single serving cell are configured at different frequencies. In a TDD (Time Division Duplex) wireless communication system, a DL CC and a UL CC corresponding to a single serving cell are configured to have the same frequency, and an uplink subframe and a downlink subframe are time-multiplexed at the serving frequency.

  FIG. 3 is a diagram illustrating an example of a configuration of a radio frame in the TDD radio communication system of the present invention. In FIG. 3, the horizontal axis represents the frequency domain, and the vertical axis represents the time domain. In FIG. 3, white squares indicate downlink subframes, squares hatched with diagonal lines indicate downlink subframes, and squares hatched with dots indicate special subframes. The number (#i) given to the subframe indicates the number of the subframe in the radio frame.

  In the downlink subframe, downlink signals such as PDCCH and PDSCH are transmitted. In the uplink subframe, uplink signals such as PUCCH and PUSCH are transmitted. The special subframe includes three regions DwPTS (Downlink Pilot Time Slot), GP (Guard Period), and UpPTS (Uplink Pilot Time Slot). DwPTS, GP, and UpPTS are time multiplexed. DwPTS is an area where downlink signals such as PDCCH and PDSCH are transmitted. UpPTS is a region where SRS and / or PRACH is transmitted, and PUCCH and PUSCH are not transmitted in UpPTS. GP is a period for the mobile station apparatus 1 and the base station apparatus 3 to switch between uplink transmission / reception and downlink transmission / reception.

  All serving cells that are aggregated have the same subframe pattern. That is, at a certain timing, the mobile station apparatus 1 and the base station apparatus 3 perform radio communication using the same type of subframes in all serving cells that are cell-intensive. In FIG. 3, the mobile station apparatus 1 uses the PDSCH of subframe # 8, subframe # 9, subframe # 0, and subframe # 1 (subframe surrounded by the thick dotted line in FIG. 3) from serving cell 1 to serving cell 3. A plurality of ACK / NACKs for the received downlink data are transmitted on PUCCH or PUSCH of subframe # 7 that is six frames after subframe # 1. Also, a plurality of ACK / NACKs for downlink data received by the mobile station apparatus 1 on the PDSCH of subframe # 3 to subframe # 6 (subframe surrounded by a thick solid line in FIG. 3) of the serving cell 1 to the serving cell 3 are It is transmitted on PUCCH or PUSCH of subframe # 2 that is six frames after subframe # 6.

  Hereinafter, the configuration of the subframe of the present invention will be described.

  FIG. 4 is a schematic diagram illustrating an example of a configuration of a downlink subframe according to the present invention. In FIG. 4, the vertical axis represents the time domain, and the horizontal axis represents the frequency domain. As shown in FIG. 4, a DL CC subframe is composed of a plurality of downlink physical resource block (PRB) pairs (for example, an area surrounded by a broken line in FIG. 4). This downlink physical resource block pair is a unit such as radio resource allocation, and has a predetermined frequency band (PRB bandwidth; 180 kHz) and time band (2 slots = 1 subframe; 1 ms).

  One downlink physical resource block pair is composed of two downlink physical resource blocks (PRB bandwidth × slot) that are continuous in the time domain. One downlink physical resource block (unit surrounded by a thick line in FIG. 4) is composed of 12 subcarriers (15 kHz) in the frequency domain, and 7 OFDM (Orthogonal Frequency Division) in the time domain. Multiplexing) symbol (71 μs).

  In the time domain, one subframe (1 ms) is composed of two slots (0.5 ms). One slot is composed of 7 OFDM symbols (about 71 μs). 1 ms, which is the same time interval as the subframe, is also referred to as a transmission time interval (TTI). In the frequency domain, a plurality of downlink physical resource blocks are arranged according to the bandwidth of the DL CC. A unit composed of one subcarrier and one OFDM symbol is referred to as a downlink resource element.

  Hereinafter, the arrangement of physical channels allocated to the downlink will be described. In each downlink subframe, PDCCH, PCFICH, PHICH, PDSCH, a downlink reference signal, and the like are arranged. PDCCH is arranged from the OFDM symbol at the head of the subframe (the area hatched with a diagonal line rising to the right in FIG. 3). The number of OFDM symbols in which the PDCCH is arranged varies from subframe to subframe, and information indicating the number of OFDM symbols in which the PDCCH is arranged is broadcast by PCFICH transmitted by the first OFDM symbol in the subframe. In each subframe, a plurality of PDCCHs are frequency multiplexed and time multiplexed.

  PCFICH is arranged in the first OFDM symbol of the subframe and is frequency-multiplexed with PDCCH. The PHICH is frequency multiplexed within the same OFDM symbol as the PDCCH. In each subframe, a plurality of PHICHs are frequency multiplexed and code multiplexed. The mobile station apparatus 1 uses the PHICH of the downlink subframe after a predetermined time (for example, 4 ms, 4 subframes, 4 TTIs) after transmitting the PUSCH, and ACKs for the uplink data transmitted on this PUSCH. / NACK is received.

  PDSCH is arranged in an OFDM symbol other than the OFDM symbol in which PDCCH, PCFICH, and PHICH are arranged in the subframe (in FIG. 4, a region that is not hatched). PDSCH radio resource allocation is indicated to the mobile station apparatus 1 using downlink assignment. The radio resources of the PDSCH are arranged in the same downlink subframe as that of the PDCCH including the downlink assignment indicating the PDSCH assignment in the time domain.

  The PDSCH and the PDCCH for this PDSCH are arranged in the same or different serving cells. In a subframe of each downlink component carrier, a plurality of PDSCHs are frequency-multiplexed and spatially multiplexed. The downlink reference signal is not shown in FIG. 4 for simplicity of explanation, but the downlink reference signal is distributed and arranged in the frequency domain and the time domain.

  FIG. 5 is a schematic diagram illustrating an example of a configuration of an uplink subframe according to the present invention. In FIG. 5, the vertical axis is the time domain, and the horizontal axis is the frequency domain. As shown in FIG. 5, the UL CC subframe is composed of a plurality of uplink physical resource block pairs (for example, an area surrounded by a broken line in FIG. 5). This uplink physical resource block pair is a unit such as radio resource allocation, and has a predetermined frequency band (PRB bandwidth; 180 kHz) and time band (2 slots = 1 subframe; 1 ms).

  One uplink physical resource block pair is composed of two uplink physical resource blocks (PRB bandwidth × slot) that are continuous in the time domain. One uplink physical resource block (unit surrounded by a thick line in FIG. 5) is composed of 12 subcarriers in the frequency domain, and 7 SC-FDMA (Single-Carrier Frequency) in the time domain. Division Multiple Access) symbol (71 μs).

  In the time domain, one subframe (1 ms) is composed of two slots (0.5 ms). One slot is composed of seven SC-FDMA symbols (time symbols) (about 71 μs). 1 ms, which is the same time interval as the subframe, is also referred to as a transmission time interval (TTI). In the frequency domain, a plurality of uplink physical resource blocks are arranged in accordance with the UL CC bandwidth. A unit composed of one subcarrier and one SC-FDMA symbol is referred to as an uplink resource element.

  Hereinafter, physical channels allocated in the uplink radio frame will be described. PUCCH, PUSCH, PRACH, an uplink reference signal, etc. are arrange | positioned at each sub-frame of an uplink. The PUCCH is arranged in uplink physical resource blocks (regions hatched with a diagonal line rising to the right) at both ends of the uplink band. In each subframe, a plurality of PUCCHs are frequency multiplexed and code multiplexed.

  The PUSCH is arranged in an uplink physical resource block pair (an area that is not hatched) other than the uplink physical resource block in which the PUCCH is arranged. PUSCH radio resources are allocated using an uplink grant, and after a predetermined time from a downlink subframe in which a PDCCH including the uplink grant is arranged (for example, 4 ms later, 4 subframes later, 4 TTI later) Are arranged in uplink subframes. In each subframe, a plurality of PUSCHs are frequency multiplexed and spatially multiplexed.

  Information indicating a subframe in which the PRACH is arranged and an uplink physical resource block is broadcast by the base station apparatus. The uplink reference signal is time-multiplexed with PUSCH and PUCCH and transmitted. When the PUSCH and the uplink reference signal are time-multiplexed, the uplink reference signal is arranged in the same frequency band to which the PUSCH is allocated in the frequency domain, and the fourth and eleventh SC-FDMA symbols in the time domain. Be placed. When the PUCCH and the uplink reference signal are time-multiplexed, the uplink reference signal is arranged in the same frequency band to which the PUCCH is allocated in the frequency domain, and the second, fifth, ninth and thirteenth in the time domain. Arranged in the SC-FDMA symbol.

  Hereinafter, the device configuration of the mobile station device 1 of the present invention will be described.

  FIG. 6 is a schematic block diagram showing the configuration of the mobile station apparatus 1 of the present invention. As illustrated, the mobile station apparatus 1 includes an upper layer processing unit 101, a control unit 103, a receiving unit 105, a transmitting unit 107, and a transmission / reception antenna 109. The upper layer processing unit 101 includes a radio resource control unit 1011 and a scheduling unit 1013. The reception unit 105 includes a decoding unit 1051, a demodulation unit 1053, a demultiplexing unit 1055, a radio reception unit 1057, and a channel measurement unit 1059. The transmission unit 107 includes an encoding unit 1071, a PUSCH generation unit 1073, a PUCCH generation unit 1075, a multiplexing unit 1077, a radio transmission unit 1079, and an uplink reference signal generation unit 10711.

  Upper layer processing section 101 outputs uplink data generated by a user operation or the like to transmitting section 107. The upper layer processing unit 101 includes a medium access control (MAC) layer, a packet data integration protocol (PDCP) layer, a radio link control (RLC) layer, and radio resource control. Process the (Radio Resource Control: RRC) layer. Further, upper layer processing section 101 generates control information for controlling receiving section 105 and transmitting section 107 based on downlink control information received by PDCCH, and outputs the control information to control section 103.

  The radio resource control unit 1011 included in the higher layer processing unit 101 manages various setting information of the own device. For example, the radio resource control unit 1011 manages the set serving cell. Also, the radio resource control unit 1011 generates information arranged in each uplink channel and outputs the information to the transmission unit 107. When the received uplink data is successfully decoded, the radio resource control unit 1011 generates an ACK and outputs an ACK to the transmitting unit 107. When the received uplink data fails to be decoded, the radio resource control unit 1011 returns NACK. And NACK is output to the transmission unit 107.

  The scheduling unit 1013 included in the higher layer processing unit 101 stores the downlink control information received via the receiving unit 105. The scheduling unit 1013 controls the transmission unit 107 via the control unit 103 so as to transmit the PUSCH according to the received uplink grant in a subframe four times after the subframe that has received the uplink grant. The scheduling unit 1013 passes the control unit 103 so as to retransmit the PUSCH according to the uplink grant stored in the scheduling unit 1013 in the subframe four times after the subframe that has received the HARQ indicator indicating NACK. The transmission unit 107 is controlled. The scheduling unit 1013 controls the receiving unit 105 via the control unit 103 to receive the PDSCH in accordance with the received downlink assignment in the subframe that has received the downlink assignment.

  The control unit 103 generates a control signal for controlling the reception unit 105 and the transmission unit 107 based on the control information from the higher layer processing unit 101. Control unit 103 outputs the generated control signal to receiving unit 105 and transmitting unit 107 to control receiving unit 105 and transmitting unit 107.

  The receiving unit 105 separates, demodulates, and decodes the received signal received from the base station apparatus 3 via the transmission / reception antenna 109 according to the control signal input from the control unit 103, and sends the decoded information to the upper layer processing unit 101. Output.

  The radio reception unit 1057 converts a downlink signal received via the transmission / reception antenna 109 into an intermediate frequency (down covert), removes unnecessary frequency components, and maintains the signal level appropriately. Then, the amplification level is controlled, quadrature demodulation is performed based on the in-phase component and the quadrature component of the received signal, and the quadrature demodulated analog signal is converted into a digital signal. The radio reception unit 1057 removes a portion corresponding to a guard interval (GI) from the converted digital signal, performs a fast Fourier transform (FFT) on the signal from which the guard interval has been removed, and performs frequency processing. Extract the region signal.

  The demultiplexing unit 1055 separates the extracted signal into PHICH, PDCCH, PDSCH, and downlink reference signal. This separation is performed based on radio resource allocation information notified by downlink assignment. Further, demultiplexing section 1055 compensates the propagation path of PHICH, PDCCH, and PDSCH from the estimated propagation path value input from channel measurement section 1059. Also, the demultiplexing unit 1055 outputs the demultiplexed downlink reference signal to the channel measurement unit 1059.

  Demodulation section 1053 multiplies the PHICH by a corresponding code and synthesizes, demodulates the synthesized signal using a BPSK (Binary Phase Shift Keying) modulation method, and outputs the result to decoding section 1051. Decoding section 1051 decodes the PHICH addressed to the own apparatus, and outputs the decoded HARQ indicator to higher layer processing section 101. Demodulation section 1053 demodulates the PDCCH using a QPSK (Quadrature Phase Shift Keying) modulation scheme, and outputs the result to decoding section 1051. Decoding section 1051 attempts blind decoding of PDCCH, and when blind decoding is successful, decodes downlink control information and outputs RNTI included in downlink control information to higher layer processing section 101. Demodulation section 1053 demodulates the PDSCH according to the modulation scheme notified by downlink assignment such as QPSK, 16QAM (Quadrature Amplitude Modulation), 64QAM, etc., and outputs the result to decoding section 1051.

  Decoding section 1051 performs decoding based on the information regarding the coding rate notified by the downlink control information, and outputs the decoded downlink data to higher layer processing section 101. Channel measurement section 1059 measures the downlink path loss and channel state from the downlink reference signal input from demultiplexing section 1055, and outputs the measured path loss and channel state to higher layer processing section 101. Also, channel measurement section 1059 calculates an estimated value of the downlink propagation path from the downlink reference signal, and outputs it to demultiplexing section 1055.

  The transmission unit 107 generates an uplink reference signal according to the control signal input from the control unit 103, encodes and modulates uplink data and uplink control information input from the higher layer processing unit 101, and PUCCH, The PUSCH and the generated uplink reference signal are multiplexed and transmitted to the base station apparatus 3 via the transmission / reception antenna 109.

  The encoding unit 1071 encodes the uplink control information and the uplink data input from the higher layer processing unit 101, and outputs the encoded bits to the PUSCH generation unit and / or the PUCCH generation unit. FIG. 7 is a schematic block diagram showing the configuration of the encoding unit 1071 of the present invention. Encoding section 1071 includes data encoding section 1071a, HARQ-ACK concatenation section 1071b, HARQ-ACK division section 1071c, RM encoding section 1071d, RM encoding section 1071e, encoded bit concatenation section 1071f, and interleave section 1071g. Consists of.

The data encoding unit 1071a encodes the uplink data a _i input from the higher layer 101 based on the uplink grant received from the base station apparatus 3, and outputs the encoded bits fi of the uplink data to the interleaving unit. . A is the payload size (number of bits) of uplink data. G is the number of encoded bits of uplink data. The HARQ-ACK concatenation unit 1071b concatenates a plurality of ACK / NACKs input from the higher layer 101 and outputs the concatenated ACK / NACK [o ₀ o ₁ ... O _O-1 ] to the HARQ-ACK concatenation unit 1071c. To do. O indicates the number of ACK / NACK bits input from the upper layer 101, that is, the number of ACK / NACK bits transmitted in a certain subframe. In the present invention, HARQ-ACK concatenation unit 1071b concatenates only ACK / NACK, but when ACK / NACK and CQI / PMI / RI and SR are transmitted on PUCCH, HARQ-ACK concatenation unit 1071b performs ACK / NACK. And CQI / PMI / RI and SR may be concatenated.

The HARQ-ACK dividing unit 1071c converts the input ACK / NACK [o ₀ o ₁ ... O _O-1 ] to the first ACK / NACK segment [o ₀ o ₁ ... O _{ceil (O / 2) −1} ]. The second ACK / NACK segment [o _{ceil (O / 2)} o _{ceil (O / 2) +1} ... o _O-1 ] is divided, and the first ACK / NACK segment is an RM (Reed-Muller) coding unit It outputs to 1071d, and outputs a 2nd ACK / NACK segment to the RM encoding part 1071e. The payload size (number of bits) O ⁽⁰⁾ of the first ACK / NACK segment is expressed by equation (1). The payload size (number of bits) O ⁽¹⁾ of the second ACK / NACK is expressed by equation (2). ceil (•) is a function that rounds up numbers in parentheses.

ＲＭ符号化部１０７１ｄは、入力された第１のＡＣＫ／ＮＡＣＫセグメントを（３）式に従ってＲＭ符号化し、第１のＡＣＫ／ＮＡＣＫセグメントの符号化ビットｑ⁽⁰⁾ _iを符号化ビット連結部１０７１ｆへ出力する。ＲＭ符号化部１０７１ｅは、入力された第２のＡＣＫ／ＮＡＣＫセグメントを（４）式に従ってＲＭ符号化し、第２のＡＣＫ／ＮＡＣＫセグメントの符号化ビットｑ^(１) _iを符号化ビット連結部１０７１ｆへ出力する。

The RM encoding unit 1071d performs RM encoding on the input first ACK / NACK segment according to the equation (3), and encodes the encoded bit q ⁽⁰⁾ _i of the first ACK / NACK segment into the encoded bit concatenating unit 1071f. Output to. The RM encoding unit 1071e performs RM encoding on the input second ACK / NACK segment according to the equation (4), and encodes the encoded bit q ⁽¹⁾ _i of the second ACK / NACK segment into the encoded bit concatenating unit 1071f. Output to.

（３）式および（４）式におけるM_i,nはリードマラー符号のベースシーケンスである。図８は、本発明のベースシーケンスM_i,nを示す表である。Ｑ⁽⁰⁾は、第１のＡＣＫ／ＮＡＣＫセグメントの符号化ビットのビット数を示す。Ｑ⁽¹⁾は、第１のＡＣＫ／ＮＡＣＫセグメントの符号化ビットのビット数を示す。ＡＣＫ／ＮＡＣＫがＰＵＣＣＨで送信される場合には、Ｑ⁽⁰⁾とＱ⁽¹⁾を２４とする。ＡＣＫ／ＮＡＣＫがＰＵＳＣＨで送信される場合には、Ｑ⁽⁰⁾とＱ⁽¹⁾は（５）式および（６）式から算出される。つまり、移動局装置１は、ＡＣＫ／ＮＡＣＫがＰＵＳＣＨで送信される場合には、第１のＡＣＫ／ＮＡＣＫの符号化ビット数と第２のＡＣＫ／ＮＡＣＫの符号化ビット数を別々に算出する。ＡＣＫ／ＮＡＣＫがＰＵＣＣＨで送信される場合には、Ｑ⁽⁰⁾とＱ⁽¹⁾は予め定められた値とする。これにより、第１のＡＣＫ／ＮＡＣＫセグメントおよび第２のＡＣＫ／ＮＡＣＫセグメントのペイロードサイズ（ビット数）に対応させて、第１のＡＣＫ／ＮＡＣＫセグメントおよび第２のＡＣＫ／ＮＡＣＫセグメントの送信に用いられる無線リソースの量、および第１のＡＣＫ／ＮＡＣＫセグメントおよび第２のＡＣＫ／ＮＡＣＫセグメントそれぞれの符号化ビットの数を適切に制御することができる。

M _{i, n} in the equations (3) and (4) is a base sequence of Reed-Muller codes. FIG. 8 is a table showing the base sequence Mi _{, n} of the present invention. Q ⁽⁰⁾ indicates the number of encoded bits of the first ACK / NACK segment. Q ⁽¹⁾ indicates the number of encoded bits of the first ACK / NACK segment. When ACK / NACK is transmitted on PUCCH, Q ⁽⁰⁾ and Q ⁽¹⁾ are set to 24. When ACK / NACK is transmitted on PUSCH, Q ⁽⁰⁾ and Q ⁽¹⁾ are calculated from equations (5) and (6). That is, when ACK / NACK is transmitted on PUSCH, mobile station apparatus 1 calculates the number of encoded bits of the first ACK / NACK and the number of encoded bits of the second ACK / NACK separately. When ACK / NACK is transmitted on PUCCH, Q ⁽⁰⁾ and Q ⁽¹⁾ are set to predetermined values. Thereby, it is used for transmission of the first ACK / NACK segment and the second ACK / NACK segment in correspondence with the payload size (number of bits) of the first ACK / NACK segment and the second ACK / NACK segment. The amount of radio resources and the number of coded bits of each of the first ACK / NACK segment and the second ACK / NACK segment can be appropriately controlled.

  The base station apparatus 3 also uses the equations (5) and (6) to calculate the number of encoded bits of the first ACK / NACK segment and the second ACK / NACK segment, the first ACK / NACK segment, and The number of modulation symbols corresponding to the second ACK / NACK segment is calculated, and the modulation symbol of ACK / NACK and the modulation symbol of data are separated based on the calculated result.

ＡＣＫ／ＮＡＣＫがＰＵＳＣＨで送信される場合には、Ｑ^（ｉ） _ｍはＡＣＫ／ＮＡＣＫとともにＰＵＳＣＨで送信される上りリンクデータの変調方式の変調多値数である。ＡＣＫ／ＮＡＣＫがＰＵＣＣＨで送信される場合には、Ｑ^（ｉ） _ｍはＰＵＣＣＨで送信されるＡＣＫ／ＮＡＣＫに対するＱＰＳＫ変調方式の変調多値数である。ＱＰＳＫ変調方式の変調多値数は２である。１６ＱＡＭの変調多値数は４である。６４ＱＡＭの変調多値数は６である。

When ACK / NACK is transmitted on the PUSCH, Q ⁽ⁱ⁾ _m is a modulation multi-level number of the modulation scheme of uplink data transmitted on the PUSCH together with ACK / NACK. When ACK / NACK is transmitted on PUCCH, Q ⁽ⁱ⁾ _m is a modulation multi-level number of the QPSK modulation scheme for ACK / NACK transmitted on PUCCH. The modulation multi-level number of the QPSK modulation method is 2. The modulation multilevel number of 16QAM is 4. The modulation multilevel number of 64QAM is 6.

min (·) is a function for selecting the smallest number in parentheses. M ^{PUSCH-initial} _SC indicates the bandwidth scheduled for PUSCH initial transmission of uplink data transmitted by PUSCH together with ACK / NACK, and is represented by the number of subcarriers. N _{^{PUSCH-initial} symb} shows SC-FDMA number of symbols in the subframe for the PUSCH initial transmission of uplink data to be transmitted on the PUSCH along with ACK / NACK. β ^PUSCH _offset is set for each mobile station device 1 by the base station device 3, and is an offset value notified from the base station device 3 to the mobile station device 1 using a radio resource control signal (Radio Resource Control signal: RRC signal) or the like. It is. B _(k) represents the sum of the CWk payload size A ^(k) and the sequence length of the cyclic redundancy check code loaded on CWk. M ^PUSCH _SC indicates the bandwidth scheduled for PUSCH transmission in the current subframe for uplink data transmitted on the PUSCH along with ACK / NACK, and is expressed by the number of subcarriers.

The encoded bit concatenation unit 1071f includes the encoded bit q ⁽⁰⁾ _{i of} the first ACK / NACK segment input from the RM encoding unit 1071d and the second ACK / NACK input from the RM encoding unit 1071e. The segment coded bits q ⁽¹⁾ _i are concatenated. The coded bit concatenation unit 1071f outputs the concatenated coded bits q _i of ACK / NACK to the interleaving unit 1071g when transmitting ACK / NACK by PUSCH. The coded bit concatenation unit 1071f outputs the concatenated ACK / NACK coded bits q _i to the PUCCH generation unit 1075 when transmitting ACK / NACK on the PUCCH.

The coded bit concatenation unit 1071f concatenates the coded bits q ⁽⁰⁾ _i of the first ACK / NACK segment and the coded bits q ⁽¹⁾ _i of the second ACK / NACK segment based on equation (7). To do. floor (·) is a function for truncating numbers in parentheses. Q is the number of concatenated ACK / NACK encoded bits q _i and is the sum of Q ⁽⁰⁾ and Q ⁽¹⁾ .

図９は、本発明の連結されたＡＣＫ／ＮＡＣＫの符号化ビットｑ_iの一例を示す図である。図９（ａ）は、ＡＣＫ／ＮＡＣＫがＰＵＳＣＨで送信され、ＡＣＫ／ＮＡＣＫとともにＰＵＳＣＨで送信される上りリンクデータがＱＰＳＫ変調される場合、およびＡＣＫ／ＮＡＣＫがＰＵＣＣＨで送信される場合の連結されたＡＣＫ／ＮＡＣＫの符号化ビットｑ_iを示す図である。図９において、第１のＡＣＫ／ＮＡＣＫセグメントの符号化ビットｑ⁽⁰⁾ _iは、太線の括弧で囲まれており、第２のＡＣＫ／ＮＡＣＫセグメントの符号化ビットｑ⁽¹⁾ _iは、点線の括弧で囲まれている。図９（ａ）では、第１のＡＣＫ／ＮＡＣＫセグメントの符号化ビットｑ⁽⁰⁾ _iと第２のＡＣＫ／ＮＡＣＫセグメントの符号化ビットｑ⁽¹⁾ _iが、先頭のビットから２ビットずつ交互に連結される。

FIG. 9 is a diagram illustrating an example of concatenated ACK / NACK encoded bits q _{i according to} the present invention. FIG. 9A shows a case where ACK / NACK is transmitted on PUSCH, uplink data transmitted on PUSCH together with ACK / NACK is QPSK modulated, and ACK / NACK is transmitted on PUCCH. is a diagram showing a coded bit q _i of ACK / NACK. In FIG. 9, the encoded bit q ⁽⁰⁾ _i of the first ACK / NACK segment is enclosed in bold brackets, and the encoded bit q ⁽¹⁾ _i of the second ACK / NACK segment is a dotted line. Enclosed in brackets. In FIG. 9A, the coded bit q ⁽⁰⁾ _i of the first ACK / NACK segment and the coded bit q ⁽¹⁾ _{i of} the second ACK / NACK segment are alternately 2 bits from the first bit. Connected to

FIG. 9 (b) is a diagram illustrating encoded bits q _i of concatenated ACK / NACK when ACK / NACK is transmitted by PUSCH and uplink data transmitted by PUSCH together with ACK / NACK is 16QAM modulated. It is. In FIG. 9B, the coded bits of the first ACK / NACK segment q ⁽⁰⁾ _{i and} the coded bits q ⁽¹⁾ _{i of} the second ACK / NACK segment are alternately 4 bits from the first bit. Connected to FIG. 9 (c) is a diagram illustrating encoded bits q _i of concatenated ACK / NACK when ACK / NACK is transmitted by PUSCH and uplink data transmitted by PUSCH together with ACK / NACK is 64QAM modulated. It is. In FIG. 9C, the coded bits of the first ACK / NACK segment q ⁽⁰⁾ _{i and} the coded bits q ⁽¹⁾ _{i of} the second ACK / NACK segment are alternately 6 bits from the first bit. Connected to

That is, when ACK / NACK is transmitted on the PUSCH, the coded bits of the first ACK / NACK segment q ⁽⁰⁾ _{i and} the coded bits q ⁽¹⁾ _{i of} the second ACK / NACK segment are: The same number of bits as the modulation multi-level number of the modulation scheme corresponding to the PUSCH uplink data are alternately connected. That is, when ACK / NACK is transmitted on the PUSCH, the coded bit concatenation unit 1071f of the mobile station apparatus 1 corresponds to the modulation scheme of the PUSCH uplink data, and the first ACK / NACK segment q ^{( 0)} _i of coded bits and a second ACK / NACK segment of encoded bits q ⁽¹⁾ to change the method of connecting the _i. Also, the coded bit concatenation unit 1071f of the mobile station apparatus 1 corresponds to whether the first ACK / NACK segment q ⁽⁰⁾ _i corresponds to whether ACK / NACK is transmitted on PUCCH or PUSCH. The method of concatenating the coded bits and the coded bits q ⁽¹⁾ _i of the second ACK / NACK segment is changed.

The interleaving unit 1071g concatenates the encoded bits of the uplink data f _i input from the data encoding unit 1071a and the encoded bits q _i of the concatenated ACK / NACK input from the encoded bit concatenating unit 1071f. The interleaved and concatenated coded bits h _i are output to the PUSCH generation unit 1073. FIG. 10 is a diagram illustrating an example of a coding symbol interleaving method according to the present invention. A coded symbol is a group of coded bits of the same number as the modulation multi-level number of the modulation scheme for PUSCH uplink data, and one modulated symbol is generated by modulating one coded symbol. Is done.

  In FIG. 10, there are as many columns as there are SC-FDMA symbol symbols in the subframe. However, since the fourth and eleventh columns are regions for uplink reference signals (DMRS), encoded symbols are not arranged. In FIG. 10, there are as many columns as the number of PUSCH subcarriers assigned by the uplink grant.

  After the encoded symbols arranged in the same column in FIG. 10 are modulated, both the modulation symbols are subjected to Discrete Fourier Transform (DFT), and the DFT signal indicates radio resource allocation by the uplink grant. Is placed in the resource element of the assigned PUSCH. The DFT signal generated from the i-th encoded symbol is arranged in a resource element corresponding to the i-th SC-FDMA symbol in the subframe.

The interleaving unit 1071 concatenates and interleaves the uplink data encoded symbol f _i , the ACK / NACK encoded symbol q _i , the CQI / PMI encoded symbol, and the RI encoded symbol as shown in FIG. In the present invention, description of CQI / PMI and RI coding is omitted for the sake of simplicity. ACK / NACK encoded symbols are arranged in the third, fifth, tenth and twelfth columns. In FIG. 10, the numbers attached to the ACK / NACK encoded symbols indicate the order in which the ACK / NACK encoded symbols are arranged. The ACK / NACK encoded symbols are arranged in order from the third column in the bottom row, and when the ACK / NACK encoded symbols are arranged up to the twelfth column, the next (one higher) row is placed. Arrangement of ACK / NACK coding symbols is repeated.

  In FIG. 10, the numbers attached to the ACK / NACK encoded symbols correspond to the numbers attached to the parentheses surrounding the encoded bits in FIG. 9. That is, in FIG. 9, a group of coded bits surrounded by one parenthesis is one ACK / NACK coded symbol. In the present invention, the encoded symbols of the first ACK / NACK segment are arranged in the 3rd and 10th columns and transmitted by the 3rd and 10th SC-FDMA symbols in the subframe. In the present invention, the encoded symbols of the second ACK / NACK segment are arranged in the 5th and 12th columns, and transmitted by the 5th and 12th SC-FDMA symbols in the subframe.

  In this way, the base station apparatus 3 causes the first ACK / NACK segment and the second ACK / NACK segment to be included in different modulation symbols, so that the base station apparatus 3 performs the first ACK / NACK segment. The modulation symbol of the NACK segment and the modulation symbol of the second ACK / NACK segment are separated, and the conventional RM code for each of the modulation symbol of the first ACK / NACK segment and the modulation symbol of the second ACK / NACK segment Since the decoding process (for example, Maximum Likelihood Decision: MLD) may be performed, the decoding process of the base station apparatus 3 can be simplified.

  As described above, by arranging the first ACK / NACK segment and the second ACK / NACK segment in different SC-FDMA symbols, the radio resource allocated to the PUSCH to which the ACK / NACK is transmitted is used. When the encoded bits of the first ACK / NACK segment and the second ACK / NACK segment cannot be transmitted sufficiently, the encoded symbol of the first ACK / NACK segment and the second ACK that can be transmitted on the PUSCH The number of encoded symbols in the / NACK segment can be made equal, and the characteristics of the first ACK / NACK segment and the second ACK / NACK segment can be kept equal.

The PUSCH generation unit 1073 generates modulation symbols by modulating the concatenated coded bits h _i input from the interleaving unit 1071g, performs DFT on the modulation symbols arranged in the same column in FIG. The PUSCH signal is output to multiplexing section 1077.

FIG. 11 is a schematic block diagram showing the configuration of the PUCCH generation unit 1075 of the present invention. The PUCCH generation unit 1075 includes a modulation unit 1075a, a modulation symbol division unit 1075b, a duplication unit 1075c, a duplication unit 1075d, a multiplication unit 1075e, and a DFT unit 1075f. The modulation unit 1075a QPSK-modulates the concatenated ACK / NACK encoded bits (q ₀ , q ₁ ,..., Q ₄₇ ) input from the encoded bit concatenation unit 1071f, and QPSK modulation symbols (d ₀ , d ₁ ,..., d ₂₃ ) are output to the modulation symbol division unit 1075b. The QPSK modulation symbol d is obtained by concatenating the coded bits of the first ACK / NACK segment q ⁽⁰⁾ _{i and} the coded bits of the second ACK / NACK segment q ⁽¹⁾ _i based on the equation (7). _i is generated from only one of the coded bits of the first ACK / NACK segment or the second ACK / NACK segment.

The modulation symbol division unit 1075b divides the QPSK modulation symbol d _i input from the modulation unit 1075a in half, and duplicates the divided upper modulation symbol block (d ₀ , d ₁ ,..., D ₁₁ ). And outputs the divided lower modulation symbol blocks (d ₁₂ , d ₁₃ ,..., D ₂₃ ) to the duplicating unit 1075d. The duplicating unit 1075c duplicates the divided upper modulation symbol block (d ₀ , d ₁ ,..., D ₁₁ ) input from the modulation symbol dividing unit 1075b into five, and duplicated higher modulation is performed. The symbol block (d ₀ , d ₁ ,..., D ₁₁ ) is output to the multiplier 1075e. The duplicating unit 1075d duplicates the divided lower modulation symbol blocks (d ₁₂ , d ₁₃ ,..., D ₂₃ ) input from the modulation symbol dividing unit 1075b into five, and duplicated lower modulations The block of symbols (d ₁₂ , d ₁₃ ,..., D ₂₃ ) is output to the multiplier 1075e.

The multiplying unit 1075e receives the duplicated upper modulation symbol block (d ₀ , d ₁ ,..., D ₁₁ ) input from the duplication unit 1075c and duplication unit 1075d and the duplicated lower modulation symbol block ( d ₁₂ , d ₁₃ ,..., d ₂₃ ) are multiplied by Orthogonal Cover Code (OCC) [w (0) w (1) w (2) w (3) w (4)] (code spreading) ), And a block (w (i) · d ₀ , w (i) · d ₁ ,..., W (i) · d ₁₁ ) of the code-modulated upper modulation symbol and a code-spread lower modulation A block of symbols (w (i) · d ₁₂ , w (i) · d ₁₃ ,..., W (i) · d ₂₃ ) is output to the DFT unit. It should be noted that the upper modulation symbol block (d ₀ , d ₁ ,..., D ₁₁ ) and the copied lower modulation symbol block (d ₁₂ , d ₁₃ ,..., D ₂₃ ) are copied. The same orthogonal code may be multiplied, or different orthogonal codes may be multiplied.

The DFT unit 1075f is a block (w (i) · d ₀ , w (i) · d ₁ ,..., W (i) · d ₁₁ ) of the code-spread upper modulation symbol input from the multiplication unit 1075e. ) And code-spread low-order modulation symbol blocks (w (i) · d ₁₂ , w (i) · d ₁₃ ,..., W (i) · d ₂₃ ) for each modulation symbol block 12 DFTs are performed, and the DFT-processed PUCCH signal is output to multiplexing section 1077.

  The uplink reference signal generation unit 10711 is notified by a physical cell identifier (physical cell identity: referred to as PCI, Cell ID, etc.) for identifying the base station apparatus 3, the bandwidth for arranging the uplink reference signal, and the uplink grant. The base station apparatus 3 generates a known sequence that is determined by a predetermined rule based on the cyclic shift and the like, and outputs the generated uplink reference signal to the multiplexing unit 1077.

  The multiplexing unit 1075 receives the PUSCH signal input from the PUSCH generation unit and / or the PUCCH signal input from the PUCCH generation unit and / or the uplink reference signal generation unit 10711 according to the control signal input from the control unit 103. The input uplink reference signal is multiplexed on an uplink resource element for each transmission antenna port.

  Radio transmission section 1077 performs inverse fast Fourier transform (IFFT) on the multiplexed signal, performs SC-FDMA modulation, and adds a guard interval to the SC-FDMA-modulated SC-FDMA symbol. Generating a baseband digital signal, converting the baseband digital signal to an analog signal, generating an in-phase component and a quadrature component of an intermediate frequency from the analog signal, removing an extra frequency component for the intermediate frequency band, The intermediate frequency signal is converted to a high frequency signal (up convert), the excess frequency component is removed, the power is amplified, and output to the transmission / reception antenna 109 for transmission.

  Hereinafter, the apparatus configuration of the base station apparatus 3 of the present invention will be described.

  FIG. 12 is a schematic block diagram showing the configuration of the base station apparatus 3 of the present invention. As illustrated, the base station apparatus 3 includes an upper layer processing unit 301, a control unit 303, a reception unit 305, a transmission unit 307, and a transmission / reception antenna 309. The upper layer processing unit 301 includes a radio resource control unit 3011 and a scheduling unit 3013. The reception unit 305 includes a data demodulation / decoding unit 3051, a control information demodulation / decoding unit 3053, a demultiplexing unit 3055, a wireless reception unit 3057, and a channel measurement unit 3059. The transmission unit 307 includes an encoding unit 3071, a modulation unit 3073, a multiplexing unit 3075, a radio transmission unit 3077, and a downlink reference signal generation unit 3079.

  The upper layer processing unit 301 includes a medium access control (MAC) layer, a packet data convergence protocol (PDCP) layer, a radio link control (RLC) layer, and a radio resource control (Radio). Resource Control (RRC) layer processing. Further, upper layer processing section 301 generates control information for controlling receiving section 305 and transmitting section 307 and outputs the control information to control section 303.

  The radio resource control unit 3011 included in the higher layer processing unit 301 generates downlink data, RRC signal, and MAC CE (Control Element) arranged in the downlink PDSCH, or acquires them from the higher node, and the HARQ control unit 3013. Output to. Further, the radio resource control unit 3011 manages various setting information of each mobile station apparatus 1. For example, the radio resource control unit 3011 performs management of the serving cell set in the mobile station device 1.

  The scheduling unit 3013 included in the higher layer processing unit 301 manages PUSCH and PUCCH radio resources allocated to the mobile station apparatus 1. When the PUSCH radio resource is allocated to the mobile station apparatus 1, the scheduling unit 3013 generates an uplink grant indicating the allocation of the PUSCH radio resource, and outputs the generated uplink grant to the transmission unit 307.

  The control unit 303 generates a control signal for controlling the reception unit 305 and the transmission unit 307 based on the control information from the higher layer processing unit 301. The control unit 303 outputs the generated control signal to the reception unit 305 and the transmission unit 307 and controls the reception unit 305 and the transmission unit 307.

  The receiving unit 305 separates, demodulates and decodes the received signal received from the mobile station apparatus 1 via the transmission / reception antenna 309 according to the control signal input from the control unit 303, and outputs the decoded information to the higher layer processing unit 301. To do.

  The radio reception unit 3057 converts an uplink signal received via the transmission / reception antenna 309 into an intermediate frequency (down covert), removes unnecessary frequency components, and appropriately maintains the signal level. In this way, the amplification level is controlled, and based on the in-phase and quadrature components of the received signal, quadrature demodulation is performed, and the quadrature demodulated analog signal is converted into a digital signal. The wireless reception unit 3057 removes a portion corresponding to a guard interval (GI) from the converted digital signal. The radio reception unit 3057 performs Fast Fourier Transform (FFT) on the signal from which the guard interval is removed, extracts a frequency domain signal, and outputs the signal to the demultiplexing unit 3055.

  The demultiplexing unit 3055 demultiplexes the signal input from the radio reception unit 3057 into signals such as PUCCH, PUSCH, and uplink reference signal. This separation is performed based on radio resource allocation information included in the uplink grant that is determined in advance by the radio resource control unit 3011 by the base station device 3 and notified to each mobile station device 1. The demultiplexing unit 3055 compensates for the propagation paths of the PUCCH and the PUSCH from the propagation path estimation value input from the channel measurement unit 3059. Further, the demultiplexing unit 3055 outputs the separated uplink reference signal to the channel measurement unit 3059.

  The demultiplexing unit 3055 performs inverse discrete Fourier transform (IDFT) on the separated PUCCH and PUSCH signals, and acquires uplink data modulation symbols and uplink control information (ACK / NACK) modulation symbols. . The demultiplexing unit 3055 outputs the uplink data modulation symbol acquired from the PUSCH signal to the data demodulation / decoding unit 3051. The demultiplexing unit 3055 outputs the modulation symbol of the uplink control information (ACK / NACK) acquired from the PUCCH signal or the PUSCH signal to the control information demodulation / decoding unit 3053.

  Channel measurement section 3059 measures an estimated value of the propagation path, channel quality, and the like from the uplink reference signal input from demultiplexing section 3055 and outputs the result to demultiplexing section 3055 and higher layer processing section 301.

  The data demodulation / decoding unit 3051 demodulates the modulation symbol of the uplink data input from the demultiplexing unit 3055, decodes the encoded bit of the demodulated uplink data, and processes the decoded uplink data as an upper layer process Output to the unit 301.

  Control information demodulation / decoding section 3053 uses the maximum likelihood determination method or the like for the modulation symbol corresponding to the first ACK / NACK segment among the ACK / NACK modulation symbols input from demultiplexing section 3055. Decode one ACK / NACK segment. Control information demodulation / decoding section 3053 uses the maximum likelihood determination method or the like for the modulation symbols corresponding to the second ACK / NACK segment among the ACK / NACK modulation symbols input from demultiplexing section 3055. Decode 2 ACK / NACK segments. Control information demodulation / decoding section 3053 concatenates the decoded first ACK / NACK segment and second ACK / NACK segment, and outputs the concatenated ACK / NACK to higher layer processing section 301.

  The transmission unit 307 generates a downlink reference signal according to the control signal input from the control unit 303, encodes and modulates the HARQ indicator, downlink control information, and downlink data input from the higher layer processing unit 301. Then, the PHICH, PDCCH, PDSCH, and downlink reference signal are multiplexed, and the signal is transmitted to the mobile station device 1 via the transmission / reception antenna 309.

  The encoding unit 3071 is a predetermined encoding method such as block encoding, convolutional encoding, turbo encoding, and the like for the HARQ indicator, downlink control information, and downlink data input from the higher layer processing unit 301 Or is encoded using the encoding method determined by the radio resource control unit 3011. The modulation unit 3073 modulates the coded bits input from the coding unit 3071 with a modulation scheme determined in advance by the radio resource control unit 3011 such as BPSK, QPSK, 16QAM, and 64QAM.

  The downlink reference signal generation unit 3079 uses, as a downlink reference signal, a sequence known by the mobile station apparatus 1 that is obtained by a predetermined rule based on a physical cell identifier (PCI) for identifying the base station apparatus 3 or the like. Generate. The multiplexing unit 3075 multiplexes the modulated modulation symbol of each channel and the generated downlink reference signal.

  The radio transmission unit 3077 performs inverse fast Fourier transform (IFFT) on the multiplexed modulation symbols and the like, performs modulation in the OFDM scheme, adds a guard interval to the OFDM symbol that has been OFDM-modulated, and baseband The baseband digital signal is converted to an analog signal, the in-phase and quadrature components of the intermediate frequency are generated from the analog signal, the extra frequency components for the intermediate frequency band are removed, and the intermediate-frequency signal is generated. Is converted to a high-frequency signal (up-convert: up-convert), an extra frequency component is removed, power is amplified, and output to the transmission / reception antenna 309 for transmission.

  Hereinafter, operations of the mobile station apparatus 1 and the base station apparatus 3 according to the present invention will be described with reference to flowcharts.

  FIG. 13 is a flowchart showing an example of the operation of the mobile station apparatus 1 of the present invention. First, the mobile station apparatus 1 divides ACK / NACK transmitted in the same subframe, generates a first ACK / NACK segment and a second ACK / NACK segment (step S100), and transmits an ACK / NACK segment. The number of coded bits of each ACK / NACK segment is calculated according to the number of bits (step S101).

  The mobile station apparatus 1 encodes the ACK / NACK segment divided | segmented by step S100 separately (step S102). The mobile station apparatus 1 concatenates the encoded bits of the ACK / NACK segment encoded in step S102 (step S103). The mobile station apparatus 1 changes the method of concatenating the encoded bits of the ACK / NACK segment in step S103 depending on whether ACK / NACK is transmitted using PUCCH or PUSCH. Also, when transmitting ACK / NACK by PUSCH, the mobile station apparatus 1 uses the method of concatenating the coded bits of the ACK / NACK segment in step S103, and the modulation scheme of uplink data of PUSCH to which ACK / NACK is transmitted. Change to correspond to.

  The mobile station apparatus 1 generates a PUCCH signal or a PUSCH signal from the concatenated ACK / NACK encoded bits, and transmits ACK / NACK to the base station apparatus 3 using the PUSCH or PUCCH (step S104). After step S104, the mobile station apparatus 1 ends the processing related to transmission of ACK / NACK.

  FIG. 14 is a flowchart showing an example of the operation of the base station apparatus 3 of the present invention. First, the base station apparatus 3 calculates the number of encoded bits of each ACK / NACK segment and the number of modulation symbols corresponding to each ACK / NACK segment according to the number of bits of each ACK / NACK segment (step S200). . The base station apparatus 3 acquires ACK / NACK modulation symbols from the PUSCH or PUCCH (step S201), performs decoding processing for each modulation symbol corresponding to each ACK / NACK segment, and decodes the ACK / NACK segment (step S201). S202). After step S202, the base station apparatus 3 ends the processing related to reception of ACK / NACK.

  In the present invention, the coded bits of the first ACK / NACK segment and the coded bits of the second ACK / NACK segment are alternately linked, and then the linked ACK / NACK coded bits are modulated. , Concatenating the encoded bits of the second ACK / NACK segment to the least significant bits of the encoded bits of the first ACK / NACK segment, modulating the encoded bits of the concatenated ACK / NACK, The modulation symbols corresponding to one ACK / NACK segment and the modulation symbols corresponding to the second ACK / NACK segment may be rearranged alternately.

  Thus, in the present invention, the mobile station apparatus 1 divides a plurality of ACK / NACKs indicating success / failure of decoding of a plurality of uplink data received from the base station apparatus 3, and separates the divided ACK / NACKs separately. In accordance with whether the ACK / NACK is transmitted on the physical uplink control channel or the physical uplink shared channel, the encoded bits of the separately encoded ACK / NACK are concatenated. The base station apparatus 3 transmits the ACK / NACK signal generated from the concatenated ACK / NACK encoded bits to the base station apparatus 3 through the physical uplink control channel or the physical uplink shared channel. The ACK / NACK signal is received from the mobile station apparatus 1 and the received ACK / NACK signal is decoded.

  Further, in the present invention, the mobile station device 1 divides a plurality of ACK / NACKs indicating success or failure of decoding of a plurality of uplink data received from the base station device 3, and separately codes the divided ACK / NACKs. And changing the method of concatenating the coded bits of the separately encoded ACK / NACK according to the modulation method of the uplink data of the physical uplink shared channel in which the ACK / NACK is transmitted, The ACK / NACK signal generated from the concatenated ACK / NACK encoded bits is transmitted to the base station apparatus 3 through the physical uplink shared channel, and the base station apparatus 3 transmits the ACK / NACK signal from the mobile station apparatus 1. The received ACK / NACK signal is decoded.

  As a result, the coded bits of each of the divided ACK / NACK can be included in different modulation symbols, and the base station apparatus 3 can perform the conventional processing for each of the modulation symbols of each of the divided ACK / NACK. Decoding processing for RM coding only needs to be performed, and decoding processing of the base station apparatus 3 can be simplified.

  Also, in the present invention, the mobile station apparatus 1 divides a plurality of ACK / NACKs indicating success or failure of decoding of a plurality of uplink data received from the base station apparatus, and codes the divided ACK / NACK separately. And each of the separately encoded ACK / NACK encoded bits is transmitted to the base station apparatus 3 using different time symbols of the physical uplink shared channel, and the base station apparatus 3 moves the ACK / NACK signal. It receives from the station apparatus 1 and decodes the received ACK / NACK signal.

  As a result, the divided ACK / NACK encoded bits that can be transmitted on the PUSCH when the ACK / NACK encoded bits cannot be sufficiently transmitted on the radio resource allocated to the PUSCH to which the ACK / NACK is transmitted. And the characteristics of the divided ACK / NACK can be kept uniform.

  Further, in the present invention, the mobile station apparatus 1 divides a plurality of ACK / NACKs indicating success or failure of decoding of a plurality of uplink data received from the base station apparatus 3, and the number of bits of each of the divided ACK / NACKs The base station apparatus 3 calculates the number of coded bits of each of the divided ACK / NACK using the ACK, and the base station apparatus 3 uses the number of bits of each of the ACK / NACK divided in the mobile station apparatus 1 The number of coded bits of each ACK / NACK is calculated. Accordingly, the amount of radio resources used for transmission of each divided ACK / NACK and the number of coded bits of each divided ACK / NACK are appropriately set corresponding to the number of bits of each divided ACK / NACK. Can be controlled.

  (A) Moreover, this invention can also take the following aspects. That is, the radio communication system of the present invention is a radio communication system in which a base station apparatus and a mobile station apparatus communicate with each other, and the mobile station apparatus determines whether or not decoding of a plurality of uplink data received from the base station apparatus is successful. Corresponding to whether the ACK / NACK is transmitted on a physical uplink control channel or a physical uplink shared channel, by dividing a plurality of ACK / NACKs shown, and encoding the divided ACK / NACK separately And changing a method of concatenating the encoded bits of the separately encoded ACK / NACK, and transmitting an ACK / NACK signal generated from the concatenated ACK / NACK encoded bits to a physical uplink control channel or The base station apparatus transmits the ACK / NACK signal to the base station apparatus through a physical uplink shared channel. Received from a station apparatus is characterized in that decoding processing signal of the received ACK / NACK.

  (B) The radio communication system of the present invention is a radio communication system in which a base station apparatus and a mobile station apparatus communicate with each other, and the mobile station apparatus decodes a plurality of uplink data received from the base station apparatus. A plurality of ACK / NACKs indicating success or failure of the ACK / NACK are divided, the divided ACK / NACKs are encoded separately, and the uplink data modulation scheme of the physical uplink shared channel to which the ACK / NACK is transmitted corresponds to Changing the method of concatenating the encoded bits of the separately encoded ACK / NACK, and transmitting the ACK / NACK signal generated from the encoded bits of the concatenated ACK / NACK through the physical uplink shared channel The base station apparatus receives the ACK / NACK signal from the mobile station apparatus, and receives the received ACK / NAC. It is characterized by processing the signal decoding.

  (C) The radio communication system of the present invention is a radio communication system in which a base station apparatus and a mobile station apparatus communicate with each other, and the mobile station apparatus decodes a plurality of uplink data received from the base station apparatus. A plurality of ACKs / NACKs indicating success / failure of the ACK, the ACKs / NACKs that have been divided are encoded separately, and the encoded bits of the separately encoded ACK / NACKs are respectively different times of the physical uplink shared channel Symbols are transmitted to the base station apparatus, and the base station apparatus receives the ACK / NACK signal from the mobile station apparatus and decodes the received ACK / NACK signal.

  (D) The radio communication system of the present invention is a radio communication system in which a base station apparatus and a mobile station apparatus communicate with each other, and the mobile station apparatus decodes a plurality of uplink data received from the base station apparatus. Dividing the plurality of ACK / NACKs indicating success or failure of the ACK / NACK, calculating the number of encoded bits of each of the divided ACK / NACK using the number of bits of each of the divided ACK / NACK, and the base station apparatus Is characterized in that the number of coded bits of each of the divided ACK / NACK is calculated using the number of bits of each of the divided ACK / NACK in the mobile station apparatus.

  (E) Moreover, the mobile station apparatus of the present invention is a mobile station apparatus that communicates with a base station apparatus, and includes a plurality of ACK / NACKs indicating success or failure of decoding of a plurality of uplink data received from the base station apparatus. Dividing, separately coding the divided ACK / NACK, and separately coding the ACK / NACK according to whether the ACK / NACK is transmitted on a physical uplink control channel or a physical uplink shared channel. The method of concatenating the encoded bits of the generated ACK / NACK is changed, and the ACK / NACK signal generated from the encoded bits of the concatenated ACK / NACK is transmitted through the physical uplink control channel or the physical uplink shared channel. It transmits to a base station apparatus.

  (F) Moreover, the mobile station apparatus of the present invention is a mobile station apparatus that communicates with a base station apparatus, and includes a plurality of ACK / NACKs indicating success or failure of decoding of a plurality of uplink data received from the base station apparatus. And separately coding the divided ACK / NACK, and corresponding to the modulation scheme of uplink data of a physical uplink shared channel to which the ACK / NACK is transmitted, A method of concatenating NACK encoded bits is changed, and an ACK / NACK signal generated from the concatenated ACK / NACK encoded bits is transmitted to the base station apparatus through a physical uplink shared channel. .

  (G) Further, the mobile station apparatus of the present invention is a mobile station apparatus that communicates with a base station apparatus, and includes a plurality of ACK / NACKs indicating success or failure of decoding of a plurality of uplink data received from the base station apparatus. Dividing, separately coding the divided ACK / NACK, and transmitting the coded bits of the separately coded ACK / NACK to the base station apparatus using different time symbols of a physical uplink shared channel. It is characterized by.

  (H) A mobile station apparatus according to the present invention is a mobile station apparatus that communicates with a base station apparatus, and includes a plurality of ACK / NACKs indicating success or failure of decoding of a plurality of uplink data received from the base station apparatus. The number of bits of each of the divided ACK / NACK is calculated using the number of bits of each of the divided ACK / NACK.

(I) Moreover, the base station apparatus of the present invention is a base station apparatus that communicates with a mobile station apparatus,
The mobile station apparatus divides a plurality of ACK / NACKs indicating success or failure of decoding of a plurality of uplink data received from the own apparatus, separately encodes the divided ACK / NACK, and the ACK / NACK is physically The method of concatenating the coded bits of the separately encoded ACK / NACK is changed according to whether the transmission is performed on the uplink control channel or the physical uplink shared channel, and the concatenated ACK is changed. ACK / NACK signal generated from the encoded bit of / NACK is transmitted on the physical uplink control channel or the physical uplink shared channel, the ACK / NACK signal is received from the mobile station apparatus, and the received ACK / NACK / It is characterized by decoding a NACK signal.

(J) Moreover, the base station apparatus of the present invention is a base station apparatus that communicates with a mobile station apparatus,
The mobile station apparatus divides a plurality of ACK / NACKs indicating success or failure of decoding of a plurality of uplink data received from the own apparatus, separately encodes the divided ACK / NACK, and transmits the ACK / NACK. The method of concatenating the coded bits of the separately encoded ACK / NACK in accordance with the modulation method of the uplink data of the physical uplink shared channel is changed, and the concatenated ACK / NACK encoding is changed. Transmitting an ACK / NACK signal generated from a bit on a physical uplink shared channel, receiving the ACK / NACK signal from the mobile station apparatus, and decoding the received ACK / NACK signal. Yes.

(K) Moreover, the base station apparatus of the present invention is a base station apparatus that communicates with a mobile station apparatus,
The mobile station apparatus divides a plurality of ACK / NACKs indicating success / failure of decoding of a plurality of uplink data received from the mobile station apparatus, separately encodes the divided ACK / NACKs, and encodes them separately. ACK / NACK encoded bits are transmitted in different time symbols of the physical uplink shared channel, the ACK / NACK signal is received from the mobile station apparatus, and the received ACK / NACK signal is decoded. It is characterized by that.

(L) Moreover, the base station apparatus of the present invention is a base station apparatus that communicates with a mobile station apparatus,
The mobile station apparatus divides a plurality of ACK / NACKs indicating success or failure of decoding of a plurality of uplink data received from the mobile station apparatus, and uses the number of bits of each ACK / NACK divided in the mobile station apparatus. The number of encoded bits of each of the divided ACK / NACK is calculated.

  (M) A radio communication method of the present invention is a radio communication method used for a mobile station apparatus communicating with a base station apparatus, and indicates success or failure of decoding of a plurality of uplink data received from the base station apparatus. A step of dividing a plurality of ACK / NACKs, a step of separately coding the divided ACK / NACKs, and the ACK / NACK is transmitted on a physical uplink control channel or a physical uplink shared channel. And changing the method of concatenating the encoded bits of the separately encoded ACK / NACK.

  (N) A radio communication method of the present invention is a radio communication method used for a mobile station apparatus communicating with a base station apparatus, and indicates success or failure of decoding of a plurality of uplink data received from the base station apparatus. A step of dividing a plurality of ACK / NACKs, a step of separately coding the divided ACK / NACKs, and a modulation scheme of uplink data of a physical uplink shared channel to which the ACK / NACK is transmitted. And a step of changing a method of concatenating the coded bits of the separately encoded ACK / NACK.

  (O) The radio communication method of the present invention is a radio communication method used for a mobile station apparatus communicating with a base station apparatus, and indicates success or failure of decoding of a plurality of uplink data received from the base station apparatus. A step of dividing a plurality of ACK / NACKs, a step of separately coding the divided ACK / NACKs, and a coding bit of each of the separately coded ACK / NACKs in different physical uplink shared channels And transmitting to the base station apparatus using time symbols.

  (P) The radio communication method of the present invention is a radio communication method used for a mobile station apparatus communicating with a base station apparatus, and indicates success or failure of decoding of a plurality of uplink data received from the base station apparatus. Dividing a plurality of ACK / NACKs, and calculating the number of encoded bits of each of the divided ACKs / NACKs using the number of bits of each of the divided ACKs / NACKs. It is a feature.

(Q) Moreover, the wireless communication method of the present invention is a wireless communication method used for a base station device communicating with a mobile station device,
The mobile station apparatus divides a plurality of ACK / NACKs indicating success or failure of decoding of a plurality of uplink data received from the own apparatus, separately encodes the divided ACK / NACK, and the ACK / NACK is physically The method of concatenating the coded bits of the separately encoded ACK / NACK is changed according to whether the transmission is performed on the uplink control channel or the physical uplink shared channel, and the concatenated ACK is changed. Transmitting the ACK / NACK signal generated from the encoded bit of / NACK on the physical uplink control channel or the physical uplink shared channel, and receiving the ACK / NACK signal from the mobile station apparatus; and And a step of decoding an ACK / NACK signal.

(R) Moreover, the wireless communication method of the present invention is a wireless communication method used for a base station device communicating with a mobile station device,
The mobile station apparatus divides a plurality of ACK / NACKs indicating success or failure of decoding of a plurality of uplink data received from the own apparatus, separately encodes the divided ACK / NACK, and transmits the ACK / NACK. The method of concatenating the coded bits of the separately encoded ACK / NACK in accordance with the modulation method of the uplink data of the physical uplink shared channel is changed, and the concatenated ACK / NACK encoding is changed. Transmitting an ACK / NACK signal generated from a bit on a physical uplink shared channel, receiving the ACK / NACK signal from the mobile station device, and decoding the received ACK / NACK signal; It is characterized by having.

  (S) A radio communication method of the present invention is a radio communication method used for a base station apparatus communicating with a mobile station apparatus, wherein the mobile station apparatus decodes a plurality of uplink data received from the own apparatus. A plurality of ACK / NACKs indicating success / failure are divided, the divided ACK / NACKs are encoded separately, and the encoded bits of the separately encoded ACK / NACKs are respectively different time symbols of the physical uplink shared channel And transmitting to the base station apparatus, receiving the ACK / NACK signal from the mobile station apparatus, and decoding the received ACK / NACK signal.

  (T) The radio communication method of the present invention is a radio communication method used in a base station apparatus that communicates with a mobile station apparatus, and the mobile station apparatus decodes a plurality of uplink data received from the own apparatus. Dividing a plurality of ACK / NACKs indicating success or failure of the ACK / NACK and calculating the number of encoded bits of each of the divided ACK / NACKs using the number of bits of each of the ACK / NACK divided by the mobile station device It is characterized by having.

  (U) An integrated circuit according to the present invention is an integrated circuit used in a mobile station apparatus that communicates with a base station apparatus, and a plurality of pieces of information indicating success or failure of decoding of a plurality of uplink data received from the base station apparatus. A function for dividing ACK / NACK, a function for separately coding the divided ACK / NACK, and whether the ACK / NACK is transmitted on a physical uplink control channel or a physical uplink shared channel And a function of changing the method of concatenating the coded bits of the separately encoded ACK / NACK, and a series of functions including a function to be implemented as a chip.

  (V) An integrated circuit according to the present invention is an integrated circuit used in a mobile station apparatus that communicates with a base station apparatus, and includes a plurality of success / failures of decoding of a plurality of uplink data received from the base station apparatus. Corresponding to the function of dividing ACK / NACK, the function of separately coding the divided ACK / NACK, and the modulation scheme of the uplink data of the physical uplink shared channel to which the ACK / NACK is transmitted, A series of functions including a function of changing a method of concatenating the coded bits of the separately encoded ACK / NACK is implemented as a chip.

  (W) An integrated circuit according to the present invention is an integrated circuit used in a mobile station apparatus that communicates with a base station apparatus, and a plurality of pieces of information indicating success or failure of decoding of a plurality of uplink data received from the base station apparatus. A function for dividing ACK / NACK, a function for separately coding the divided ACK / NACK, and a different time symbol of a physical uplink shared channel for each coded bit of the separately coded ACK / NACK And a function of transmitting to the base station apparatus, a series of functions including a function is implemented as a chip.

  (X) An integrated circuit according to the present invention is an integrated circuit used in a mobile station apparatus that communicates with a base station apparatus, and includes a plurality of pieces of information indicating success or failure of decoding of a plurality of uplink data received from the base station apparatus. A series of functions including a function of dividing ACK / NACK and a function of calculating the number of encoded bits of each of the divided ACK / NACK using the number of bits of each of the divided ACK / NACK It is a chip that is executable.

  (Y) An integrated circuit according to the present invention is an integrated circuit used in a base station apparatus that communicates with a mobile station apparatus, and the mobile station apparatus decodes a plurality of uplink data received from the own apparatus. A plurality of ACKs / NACKs indicating that the divided ACKs / NACKs are encoded separately, and whether the ACK / NACKs are transmitted on a physical uplink control channel or a physical uplink shared channel Correspondingly, the method of concatenating the encoded bits of the separately encoded ACK / NACK is changed, and the ACK / NACK signal generated from the concatenated ACK / NACK encoded bits is converted into a physical uplink control channel. Or a function of transmitting on the physical uplink shared channel and receiving the ACK / NACK signal from the mobile station apparatus, and the received ACK A series of functions including a function of decoding the NACK signal, the is characterized executable to be separated into chips.

  (Z) An integrated circuit according to the present invention is an integrated circuit used in a base station apparatus that communicates with a mobile station apparatus, and the mobile station apparatus decodes a plurality of uplink data received from the own apparatus. Are divided into a plurality of ACK / NACKs, the divided ACK / NACKs are encoded separately, and the uplink data modulation scheme of the physical uplink shared channel to which the ACK / NACK is transmitted corresponds to the A method of concatenating coded bits of separately encoded ACK / NACK is changed, and the base station apparatus transmits an ACK / NACK signal generated from the concatenated ACK / NACK encoded bits on a physical uplink shared channel. And a function of receiving the ACK / NACK signal from the mobile station apparatus and a function of decoding the received ACK / NACK signal When it is characterized by a series of functions including is capable chip run.

(A) An integrated circuit of the present invention is an integrated circuit used in a base station apparatus that communicates with a mobile station apparatus, and the mobile station apparatus decodes a plurality of uplink data received from the own apparatus. Are divided into a plurality of ACKs / NACKs, and the divided ACKs / NACKs are separately encoded, and the encoded bits of the separately encoded ACK / NACKs are respectively represented by different time symbols of the physical uplink shared channel. Transmit to the base station device,
A series of functions including a function of receiving the ACK / NACK signal from the mobile station apparatus and a function of decoding the received ACK / NACK signal is implemented as a chip. .

  (B) Moreover, the integrated circuit of the present invention is an integrated circuit used in a base station apparatus that communicates with a mobile station apparatus, and the mobile station apparatus decodes a plurality of uplink data received from the own apparatus. A function of dividing a plurality of ACK / NACKs indicating the number of encoded bits of each of the divided ACKs / NACKs using the number of bits of each of the ACKs / NACKs divided by the mobile station device, It is a chip that is executable.

  A program that operates in the base station apparatus 3 and the mobile station apparatus 1 related to the present invention is a program (computer function) that controls a CPU (Central Processing Unit) or the like so as to realize the functions of the above-described embodiments related to the present invention. Program). Information handled by these devices is temporarily stored in RAM (Random Access Memory) during the processing, and then stored in various ROMs such as Flash ROM (Read Only Memory) and HDD (Hard Disk Drive). Reading, correction, and writing are performed by the CPU as necessary.

  In addition, you may make it implement | achieve the mobile station apparatus 1 in the embodiment mentioned above, and a part of base station apparatus 3 with a computer. In that case, the program for realizing the control function may be recorded on a computer-readable recording medium, and the program recorded on the recording medium may be read by the computer system and executed.

  The “computer system” here is a computer system built in the mobile station apparatus 1 or the base station apparatus 3 and 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.

  Furthermore, the “computer-readable recording medium” is a medium that dynamically holds a program for a short time, such as a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line, In such a case, a volatile memory inside a computer system serving as a server or a client may be included and a program that holds a program for a certain period of time. 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.

  Further, part or all of the mobile station device 1 and the base station device 3 in the above-described embodiment may be realized as an LSI that is typically an integrated circuit, or may be realized as a chip set. Each functional block of the mobile station device 1 and the base station device 3 may be individually chipped, or a part or all of them may be integrated into a chip. Further, the method of circuit integration is not limited to LSI, and may be realized by a dedicated circuit or a general-purpose processor. In addition, when an integrated circuit technology that replaces LSI appears due to progress in semiconductor technology, an integrated circuit based on the technology can also be used.

  As described above, the embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to the above, and various design changes and the like can be made without departing from the scope of the present invention. It is possible to

1 (1A, 1B, 1C) Mobile station apparatus 3 Base station apparatus 101 Upper layer processing section 103 Control section 105 Reception section 107 Transmission section 301 Upper layer processing section 303 Control section 305 Reception section 307 Transmission section

Claims (14)

A mobile station device that communicates with a base station device,
Generating two ACK / NACK sequences from a plurality of ACK / NACKs for a plurality of transport blocks received from the base station apparatus;
Encoding the two ACK / NACK sequences separately to generate two code bit sequences;
Depending on whether the ACK / NACK is transmitted on a physical uplink control channel or a physical uplink shared channel, the two code bit sequences are concatenated in different ways,
If there is not in the sub-frame allocated to the physical uplink shared channel, the certain through the physical uplink control channel in a subframe, it transmits a signal generated from the concatenated code bit sequence to the base station apparatus ,
When the physical uplink shared channel is allocated in the certain subframe, a signal generated from the concatenated code bit sequence is transmitted to the base station apparatus through the physical uplink shared channel in the certain subframe. A mobile station apparatus characterized by:   The mobile station apparatus according to claim 1, wherein the method of concatenation includes a method of alternately concatenating the two code bit sequences in units of a predetermined number of bits.   The mobile station apparatus according to claim 1, wherein the concatenating method includes a method of concatenating the other code bit sequence to the least significant bit of one code bit sequence of the two code bit sequences.   When transmitting the ACK / NACK on the physical uplink shared channel, the two code bit sequences are concatenated by different methods according to the modulation scheme of the physical uplink shared channel used for transmitting the ACK / NACK. The mobile station apparatus according to claim 1. When a plurality of physical uplink shared channels are allocated in the certain subframe, the concatenated code is transmitted through one physical uplink shared channel among the plurality of physical uplink shared channels in the certain subframe. The mobile station apparatus according to claim 1, wherein a signal generated from a bit sequence is transmitted to the base station apparatus. A base station device that communicates with a mobile station device,
The mobile station apparatus generates two ACK / NACK sequences from a plurality of ACK / NACKs for a plurality of transport blocks transmitted by the base station apparatus, and the two ACK / NACK sequences are encoded separately. Two code bit sequences are generated, and the two code bit sequences are concatenated in different ways depending on whether the ACK / NACK is transmitted on a physical uplink control channel or a physical uplink shared channel,
If there is not in the sub-frame allocated to the physical uplink shared channel, via the physical uplink control channel in the certain subframe, receiving a signal generated from the concatenated code bit sequence from said mobile station apparatus ,
When the physical uplink shared channel is allocated in the certain subframe, a signal generated from the connected code bit sequence is received from the mobile station apparatus via the physical uplink shared channel in the certain subframe. A base station apparatus. A wireless communication method used for a mobile station apparatus communicating with a base station apparatus,
Two ACK / NACK sequences are generated from a plurality of ACK / NACKs for a plurality of transport blocks received from the base station apparatus, and the two ACK / NACK sequences are separately encoded to generate two code bit sequences. ,
Depending on whether the ACK / NACK is transmitted on a physical uplink control channel or a physical uplink shared channel, the two code bit sequences are concatenated in different ways,
If there is not in the sub-frame allocated to the physical uplink shared channel, the certain through the physical uplink control channel in a subframe, it transmits a signal generated from the concatenated code bit sequence to the base station apparatus ,
When the physical uplink shared channel is allocated in the certain subframe, a signal generated from the concatenated code bit sequence is transmitted to the base station apparatus through the physical uplink shared channel in the certain subframe. And a wireless communication method.   8. The wireless communication method according to claim 7, wherein the concatenating method includes a method of alternately concatenating the two code bit sequences in units of a predetermined number of bits.   The radio communication method according to claim 7, wherein the concatenating method includes a method of concatenating the other code bit sequence to the least significant bit of one code bit sequence of the two code bit sequences.   When transmitting the ACK / NACK on the physical uplink shared channel, the two code bit sequences are concatenated by different methods according to the modulation scheme of the physical uplink shared channel used for transmitting the ACK / NACK. The wireless communication method according to claim 7. When a plurality of physical uplink shared channels are allocated in the certain subframe, the concatenated code is transmitted through one physical uplink shared channel among the plurality of physical uplink shared channels in the certain subframe. The radio communication method according to claim 7, wherein a signal generated from a bit sequence is transmitted to the base station apparatus. A wireless communication method used in a base station device that communicates with a mobile station device,
The mobile station apparatus generates two ACK / NACK sequences from a plurality of ACK / NACKs for a plurality of transport blocks transmitted by the base station apparatus, and the two ACK / NACK sequences are encoded separately. Two code bit sequences are generated, and the two code bit sequences are concatenated in different ways depending on whether the ACK / NACK is transmitted on a physical uplink control channel or a physical uplink shared channel,
If there is not in the sub-frame allocated to the physical uplink shared channel, via the physical uplink control channel in the certain subframe, receiving a signal generated from the concatenated code bit sequence from said mobile station apparatus ,
When the physical uplink shared channel is allocated in the certain subframe, a signal generated from the connected code bit sequence is received from the mobile station apparatus via the physical uplink shared channel in the certain subframe. And a wireless communication method. An integrated circuit used in a mobile station device communicating with a base station device,
A function of generating two ACK / NACK sequences from a plurality of ACK / NACKs for a plurality of transport blocks received from the base station apparatus;
A function of separately encoding the two ACK / NACK sequences to generate two code bit sequences;
A function of concatenating the two code bit sequences in different manners depending on whether the ACK / NACK is transmitted on a physical uplink control channel or a physical uplink shared channel;
If there is not in the sub-frame allocated to the physical uplink shared channel, the certain through the physical uplink control channel in a subframe, for transmitting a signal generated from the concatenated code bit sequence to the base station apparatus Function and
When the physical uplink shared channel is allocated in the certain subframe, a signal generated from the concatenated code bit sequence is transmitted to the base station apparatus through the physical uplink shared channel in the certain subframe. An integrated circuit that causes the mobile station apparatus to exhibit a series of functions including: An integrated circuit used in a base station device that communicates with a mobile station device,
The mobile station apparatus generates two ACK / NACK sequences from a plurality of ACK / NACKs for a plurality of transport blocks transmitted by the base station apparatus, and the two ACK / NACK sequences are encoded separately. Two code bit sequences are generated, and the two code bit sequences are concatenated in different ways depending on whether the ACK / NACK is transmitted on a physical uplink control channel or a physical uplink shared channel,
If there is not in the sub-frame allocated to the physical uplink shared channel, in the certain subframe, through the physical uplink control channel, receives a signal generated from the concatenated code bit sequence from said mobile station apparatus Function to
When the physical uplink shared channel is allocated in the certain subframe, a signal generated from the connected code bit sequence is received from the mobile station apparatus via the physical uplink shared channel in the certain subframe. And a function of receiving a signal generated from the concatenated code bit sequence, causing the base station apparatus to exhibit a series of functions.

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