WO2012005145A1 - 移動局装置、基地局装置、無線通信システム、無線通信方法および集積回路 - Google Patents
移動局装置、基地局装置、無線通信システム、無線通信方法および集積回路 Download PDFInfo
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- WO2012005145A1 WO2012005145A1 PCT/JP2011/064824 JP2011064824W WO2012005145A1 WO 2012005145 A1 WO2012005145 A1 WO 2012005145A1 JP 2011064824 W JP2011064824 W JP 2011064824W WO 2012005145 A1 WO2012005145 A1 WO 2012005145A1
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- nack
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- encoded bits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1858—Transmission or retransmission of more than one copy of acknowledgement message
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
Definitions
- the present invention relates to a mobile station device, a base station device, a wireless communication system, a wireless communication method, and an integrated circuit.
- the third generation partnership project is 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)”).
- LTE Long Term Evolution
- EUTRA Evolved Universal Terrestrial Radio Access
- OFDM Orthogonal frequency division multiplexing
- SC-FDMA Single-Carrier Frequency Division Multiple Access
- ACK Acknowledgement
- NACK Negative Acknowledgement indicating whether the mobile station apparatus has successfully decoded downlink data received on a physical downlink shared channel
- PUCCH Physical-Uplink Control Channel
- PUSCH Physical Uplink Shared Channel
- 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.
- LTE-A Long ⁇ Term Evolution-Advanced
- A-EUTRA Advanced Evolved Universal Terrestrial Radio
- LTE-A base station apparatus performs radio communication simultaneously with both LTE-A and LTE mobile station apparatuses
- LTE-A mobile station apparatus performs radio communication with both LTE-A and LTE base station apparatuses.
- LTE-A uses the same channel structure as LTE.
- LTE-A uses a plurality of frequency bands having the same channel structure as LTE (hereinafter referred to as “carrier element (Carrier—Component: CC)” or “component carrier (Component—Carrier: CC))”.
- carrier element Carrier—Component: CC
- Component carrier Component—Carrier: CC
- Techniques used as frequency bands (broadband frequency bands) (frequency band aggregation: also called “spectrum aggregation, carrier aggregation, frequency aggregation, etc.) have been proposed.
- frequency band aggregation also called “spectrum aggregation, carrier aggregation, frequency aggregation, etc.) have been proposed.
- the base station device arranges one PDSCH for each downlink component carrier (Downlink Component Carrier: DL CC), and simultaneously transmits a plurality of PDSCHs to the mobile station device.
- one primary cell Primary cell: Pcell
- one or more secondary cells Secondary cell: Scell
- the primary cell is a cell provided by a downlink primary component carrier (Downlink Primary Component Carrier: DL PCC) and an uplink primary component carrier (Uplink Primary Component Carrier: UL PCC).
- the primary cell is a cell having the same function as the LTE cell.
- One DL PCC and one ULCPCC are set for each mobile station apparatus.
- the secondary cell is a cell provided by a downlink secondary component carrier (Downlink Secondary Component Carrier: DL SCC) and an uplink secondary component carrier (Uplink Secondary Component Carrier: UL SCC).
- the secondary cell may be provided only by DL-SCC.
- the secondary cell is a cell whose function is limited more than the primary cell. All DL CCs except DL PCC are DL SCC. All uplink component carriers (Uplink Component (Carrier:) UL CC) except UL PCC are UL SCC.
- Non-Patent Document 1 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, an uplink is performed using one PUSCH among the plurality of PUSCHs transmitted by the mobile station apparatus. Transmission of link data (information channel in higher layer) (Uplink Shared Channel: UL-SCH) and a plurality of ACKs / NACKs together is being studied (Non-Patent Document 1).
- Non-Patent Document 2 discloses a method of encoding all ACK / NACK together when transmitting a plurality of ACK / NACKs for a plurality of PDSCHs on the same PUSCH, and a cell (DL CC) corresponding to the ACK / NACK. It is described that encoding is performed every time. Further, in Non-Patent Document 2, even when a mobile station apparatus is assigned a plurality of DL CCs, the mobile station device only provides downlink control information (Downlink Control Information: DCI) indicating the PDSCH assignment of the primary cell. When received, the mobile station apparatus transmits both uplink data and ACK / NACK using PUSCH using the LTE transmission method. The downlink control information indicating the PDSCH assignment is referred to as downlink assignment (DL assignment).
- DCI Downlink Control Information
- uplink data is transmitted with a spatial multiplexing number of 2 or more (hereinafter referred to as rank or Rank).
- Non-Patent Document 3 proposes assigning a bit string after channel coding to each layer as a method for creating a copy of control information.
- the mobile station apparatus when the mobile station apparatus transmits ACK / NACK for a plurality of PDSCHs received by a plurality of DL CCs on one physical uplink channel, the mobile station apparatus efficiently encodes ACK / NACK. There is a problem that it cannot be transmitted in the form of a computer.
- the mobile station apparatus transmits ACK / NACK for a plurality of PDSCHs received by a plurality of DL-CCs on one physical uplink channel
- the mobile station apparatus Mobile station apparatus, base station apparatus, radio communication system, and radio communication method capable of efficiently encoding and transmitting ACK / NACK and allowing base station apparatus to receive ACK / NACK transmitted by mobile station apparatus And it aims at providing an integrated circuit.
- the mobile station apparatus provides a first ACK / NACK in a mobile station apparatus that transmits a plurality of ACK / NACKs for transport blocks transmitted by a base station apparatus using a plurality of component carriers to the base station apparatus.
- the second ACK / NACK are encoded separately, and the first ACK / NACK coded bits are repeatedly processed until the number of coded bits of the first ACK / NACK reaches the first value.
- the second ACK / NACK coded bits are repeatedly processed until the number of coded bits of the second ACK / NACK reaches a second value, and the first ACK subjected to the repeated processing is executed.
- the physical uplink channel is a physical uplink shared channel, and the first value and the second value are used in the physical uplink shared channel. It is characterized by being a positive integer multiple of the modulation order.
- the iterative process may be performed when the first ACK / NACK encoded bit is smaller than the first value. This is characterized in that it is a process of repeatedly connecting encoded bits from the beginning.
- the iterative process is performed when the second ACK / NACK encoded bit is smaller than the second value, and the second ACK / NACK is This is characterized in that the encoded bits are repeatedly connected from the beginning.
- the iterative process is performed when the coded bit of the first ACK / NACK is larger than the first value. This is characterized in that it is a process of cutting encoded bits from the beginning to the first value.
- the iterative process may be performed when the second ACK / NACK encoded bit is larger than the second value. This is characterized in that it is a process of cutting the encoded bits from the beginning to the second value.
- the base station apparatus of the present invention separately encodes the base station apparatus that receives a plurality of ACKs / NACKs for the transport blocks transmitted from the mobile station apparatus to the mobile station apparatus using a plurality of component carriers.
- the received first ACK / NACK and second ACK / NACK are received from the mobile station apparatus using one physical uplink channel, and the encoded bits of the first ACK / NACK are the mobile
- the station apparatus repeatedly performs the process until the number of coded bits of the first ACK / NACK reaches a first value, and the coded bits of the second ACK / NACK are Iterative processing is executed until the number of encoded ACK / NACK bits reaches a second value, and the first ACK / N for which the iterative processing has been executed.
- the second coded bits ACK / NACK to the repetitive processing encoded bit CK is performed, it is characterized by being connected by the mobile station apparatus.
- the physical uplink channel is a physical uplink shared channel, and the first value and the second value are used in the physical uplink shared channel. It is characterized by being a positive integer multiple of the modulation order.
- the iterative process may be performed when the first ACK / NACK encoded bit is smaller than the first value. This is characterized in that it is a process of repeatedly connecting encoded bits from the beginning.
- the iterative process may be performed when the second ACK / NACK encoded bit is smaller than the second value, and the second ACK / NACK is This is characterized in that the encoded bits are repeatedly connected from the beginning.
- the iterative process may be performed when the first ACK / NACK encoded bit is larger than the first value. This is characterized in that it is a process of cutting encoded bits from the beginning to the first value.
- the iterative process is performed when the second ACK / NACK coded bit is larger than the second value, This is characterized in that it is a process of cutting the encoded bits from the beginning to the second value.
- the mobile station apparatus transmits a plurality of ACK / NACKs for the transport block transmitted by the base station apparatus using a plurality of component carriers to the base station apparatus.
- the mobile station apparatus separately encodes the first ACK / NACK and the second ACK / NACK, and the first ACK / NACK is encoded until the number of encoded bits of the first ACK / NACK becomes a first value.
- the base station apparatus Iterates on one ACK / NACK coded bit and repeats on the second ACK / NACK coded bit until the number of coded bits on the second ACK / NACK reaches a second value And the coded bit of the first ACK / NACK that has performed the repetition process and the second ACK / NAC that has performed the repetition process And the first ACK / NACK and the second ACK / NACK are transmitted to the base station apparatus using one physical uplink channel, and the base station apparatus The first ACK / NACK and the second ACK / NACK are received from the mobile station apparatus using the one physical uplink channel.
- the radio communication method of the present invention is a radio communication used for a mobile station apparatus that transmits a plurality of ACKs / NACKs for transport blocks transmitted by a base station apparatus using a plurality of component carriers to the base station apparatus.
- the first ACK / NACK and the second ACK / NACK are separately encoded, and the first ACK / NACK is encoded until the number of encoded bits of the first ACK / NACK becomes a first value.
- the physical uplink channel is a physical uplink shared channel, and the first value and the second value are used in the physical uplink shared channel. It is characterized by being a positive integer multiple of the modulation order.
- the radio communication method of the present invention is a radio communication used for a base station apparatus that receives a plurality of ACK / NACKs for transport blocks transmitted from a plurality of component carriers to the base station apparatus from the mobile station apparatus.
- the method separately encoded first ACK / NACK and second ACK / NACK are received from the mobile station device using one physical uplink channel, and the first ACK / NACK code is received.
- the encoded bits are repeatedly processed by the mobile station apparatus until the number of encoded bits of the first ACK / NACK reaches a first value, and the encoded bits of the second ACK / NACK are The iterative process is executed by the station apparatus until the number of encoded bits of the second ACK / NACK reaches a second value, and the iterative process A second ACK / NACK coding bits of the repetitive processing and coded bits of the first ACK / NACK executed is executed, it is characterized by being connected by the mobile station apparatus.
- the physical uplink channel is a physical uplink shared channel, and the first value and the second value are used in the physical uplink shared channel. It is characterized by being a positive integer multiple of the modulation order.
- An integrated circuit according to the present invention is an integrated circuit used in a mobile station apparatus that transmits a plurality of ACK / NACKs for transport blocks transmitted by a base station apparatus using a plurality of component carriers to the base station apparatus.
- a first ACK / NACK encoded bit that has been subjected to the iterative process and a second ACK / NACK that has been subjected to the iterative process A series of functions including a function of concatenating coded bits and a function of transmitting the first ACK / NACK and the second ACK / NACK to the base station apparatus using one physical uplink channel In the mobile station apparatus.
- the physical uplink channel is a physical uplink shared channel, and the first value and the second value are used in the physical uplink shared channel. It is characterized by being a positive integer multiple of the modulation order.
- An integrated circuit according to the present invention is an integrated circuit used in a base station apparatus that receives a plurality of ACK / NACKs for a transport block transmitted from a mobile station apparatus to a mobile station apparatus using a plurality of component carriers. , Causing the base station device to function to receive separately encoded first ACK / NACK and second ACK / NACK from the mobile station device using one physical uplink channel, and The coded bits of one ACK / NACK are repeatedly processed by the mobile station apparatus until the number of coded bits of the first ACK / NACK reaches a first value, and the second ACK / NACK The coded bits are repeatedly processed by the mobile station apparatus until the number of coded bits of the second ACK / NACK reaches a second value. The coded bits of the first ACK / NACK for which the iterative processing has been performed and the coded bits of the second ACK / NACK for which the iterative processing has been performed are connected by the mobile station apparatus. It is a feature.
- the physical uplink channel is a physical uplink shared channel, and the first value and the second value are used in the physical uplink shared channel. It is characterized by being a positive integer multiple of the modulation order.
- the mobile station apparatus when the mobile station apparatus transmits ACK / NACK for a plurality of PDSCHs received by a plurality of DL CCs on one physical uplink channel, the mobile station apparatus efficiently encodes the ACK / NACK. Can be sent.
- FIG. 1 is a conceptual diagram of the wireless communication system of the present invention.
- the radio communication system includes mobile station apparatuses 1 A to 1 C and a base station apparatus 3.
- FIG. 1 shows a synchronization signal (Synchronization signal: SS), downlink reference signal (Downlink Signal: DL RS), physical broadcast channel in wireless communication (downlink) from the base station device 3 to the mobile station devices 1A to 1C.
- SS Synchronization signal
- DL RS downlink reference signal
- downlink downlink Signal
- Physical Broadcast Channel PBCH
- Physical Downlink Control Channel Physical Downlink Control Channel: PDCCH
- Physical Downlink Shared Channel Physical Downlink Shared Channel
- Physical Multicast Channel Physical Multicast Channel
- PCFICH Physical Control Indicator Channel
- PHICH Physical Hybrid ARQ Indicator Channel
- FIG. 1 shows uplink reference signals (Uplink Reference Signal: UL RS), physical uplink control channel (Physical Uplink Control Channel: PUCCH) in wireless communication (uplink) from the mobile station devices 1A to 1C to the base station device 3. ), A physical uplink shared channel (Physical Uplink Shared Channel: PUSCH), and a physical random access channel (Physical Random Access Channel: PRACH).
- UL RS Uplink Reference Signal
- PUCCH Physical Uplink Control Channel
- PUSCH Physical Uplink Shared Channel
- PRACH Physical Random Access Channel
- 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.
- PBCH is a physical channel used for broadcasting control parameters (system information) (Broadcast Channel: BCH) commonly used in the mobile station apparatus 1.
- BCH Broadcast Channel
- PBCH is transmitted at intervals of 40 ms.
- the mobile station apparatus 1 performs blind detection (blind detection) at 40 ms intervals.
- the PDCCH is a physical channel used for transmitting downlink control information (Downlink Control Information: DCCI) such as downlink assignment (also referred to as downlink assignment or downlink grant) and uplink grant (uplink grant).
- DCCI Downlink Control Information
- the downlink assignment includes information on modulation scheme and coding rate for PDSCH (Modulation & Coding Scheme: MCS), information indicating radio resource allocation, and the like.
- MCS Modulation & Coding Scheme
- the uplink grant is composed of information on a modulation scheme and a coding rate for PUSCH (channel for uplink data transmission), information indicating radio resource allocation, and the like.
- the format of the downlink control information is called a DCI format (DCIDformat).
- the DCI format of the downlink assignment is a DCI format 1A used when the base station apparatus 3 transmits the PDSCH using one transmission antenna port or transmission diversity, and the base station apparatus 3 transmits MIMO SM (Multiple Input Multiple to the PDSCH.
- DCI format 2 used when transmitting a plurality of downlink data using (Output ⁇ ⁇ Spatial Multiplexing) is prepared.
- MIMO SM is a technology 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.
- 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.
- 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.
- processing for appropriately separating signals multiplexed on a spatial dimension channel from a plurality of signals received using a plurality of receiving antennas is performed.
- PDSCH is a physical channel that is not broadcast on paging information (Paging Channel: PCH) or PBCH, that is, used to transmit system information other than BCH and downlink data (Downlink Shared Channel: DL-SCH).
- the PMCH is a physical channel used for transmitting information (Multicast Channel: MCH) related to MBMS (Multimedia Broadcast and Multicast Service).
- PCFICH is a physical channel used for transmitting information indicating an area where the PDCCH is arranged.
- the PHICH is a physical channel used for transmitting a HARQ indicator that indicates success or failure of decoding of uplink data (Uplink Shared Channel: -UL-SCH) received by the base station apparatus 3.
- Uplink Shared Channel: -UL-SCH Uplink Shared Channel
- the HARQ indicator indicates ACK (ACKnowledgement), and the base station apparatus 3 decodes at least one uplink data included in the PUSCH. If it fails, the HARQ indicator indicates NACK (Negative ACKnowledgement).
- ACK acknowledgement
- NACK Negative ACKnowledgement
- 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 radio resources divided assuming SC-FDMA.
- CAZAC Constant-Amplitude-and-Zero-Auto-Correlation
- 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, it is possible to keep PAPR (Peak to Average Power to Ratio) 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.
- DMRS Demodulation Reference Signal
- SRS Sounding Reference Signal
- OCC OrthogonCover Code
- the PUCCH includes channel quality information (Channel Quality Information) indicating downlink channel quality, a scheduling request (Scheduling Request: SR) indicating a request for allocation of uplink radio resources, and downlink data received by the mobile station apparatus 1. It is a physical channel used for transmitting uplink control information (Uplink Control Information: UCI) that is information used for communication control, such as ACK / NACK indicating success or failure of decoding.
- Channel Quality Information Channel Quality Information
- SR scheduling request
- UCI Uplink Control Information
- the PUSCH is a physical channel used for transmitting uplink data and uplink control information.
- 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
- PRACH is a physical channel used to transmit 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.
- FIG. 2 is a diagram showing an example of the frequency band aggregation processing of the present invention.
- the horizontal axis represents the frequency domain
- the vertical axis represents the time domain.
- the downlink subframe D1 includes four downlink component carriers (DL CC-1; Downlink Component Carrier-1, DL CC-2, DL CC-3, DL) having a bandwidth of 20 MHz. It is composed of DL CC-4) subframes.
- 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.
- the uplink subframe U1 includes three uplink component carriers (UL-CC-1; Uplink Component-Carrier-1, UL-CC-2, UL-CC-3) having a bandwidth of 20 MHz.
- Each UL-CC subframe is frequency-multiplexed with a region where a PUCCH indicated by a region hatched with a right-down diagonal line is arranged and a region where a PUSCH indicated by a region hatched with a horizontal line is arranged. .
- the mobile station apparatus 1 first performs initial access with the base station apparatus 3 using either one of the DL CC and UL CC.
- the base station device 3 uses the RRC signal (Radio Resource Control signal) transmitted using the PD SC of the DL CC that the mobile station apparatus 1 has initially accessed, and sets the DL CC and UL CC that are set for the mobile station apparatus 1.
- RRC signal Radio Resource Control signal
- configured (uplink / downlink) component carrier referred to as configured (downlink / uplink) component carrier
- the base station apparatus 3 activates a DL CC used for downlink communication from the set DL CC and / or an UL command indicating an UL CC used for uplink communication from the set UL CC. Is notified using PDCCH or MAC (Medium Access Control) CE (Control Element).
- activating the CC Informing the mobile station device 1 that the CC is used for communication by the activation command by the base station device 3 is referred to as activating the CC. Notifying the mobile station device 1 that the CC is not used for communication by the activation command is referred to as deactivating the CC.
- the base station device 3 sets one downlink primary component carrier (DownlinkDownPrimary Component Carrier: DL PCC) (first downlink component carrier) from the set DL CC for each mobile station device 1.
- DL PCC DownlinkDownPrimary Component Carrier
- ULPCC Uplink Primary Component Carrier
- DL CC other than DL PCC is a downlink secondary component carrier (Downlink Secondary Component Carrier: DL DL SCC) (second downlink component carrier).
- UL CC other than UL PCC is an uplink secondary component carrier (Uplink Secondary Component Carrier: UL SCC).
- Pcell Primary cell
- Scell secondary cell
- the primary cell is a cell provided by one DL-PCC and one UL-PCC.
- the primary cell is a cell having the same function as the LTE cell.
- the secondary cell is a cell provided by one DL SCC and one UL SCC.
- the secondary cell may be provided only by DL-SCC.
- the secondary cell is a cell whose function is limited more than the primary cell.
- the uplink control information is transmitted on the UL-PCC PUCCH and / or one of the set UL-CC PUSCHs.
- FIG. 3 is a schematic diagram illustrating an example of a configuration of a downlink radio frame according to the present invention.
- the horizontal axis is the time domain
- the vertical axis is the frequency domain.
- a DL-CC radio frame is composed of a plurality of downlink physical resource block (Physical Resource Block; PRB) pairs (for example, an area surrounded by a broken line in FIG. 3).
- PRB Physical Resource Block
- 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. 3) is composed of 12 subcarriers (15 kHz) in the frequency domain, and 7 OFDMs (Orthogonal Frequency Division) in the time domain. Multiplexing) symbol (71 ⁇ s).
- a slot (0.5 ms) composed of 7 OFDM symbols (71 ⁇ s), a subframe (1 ms) composed of 2 slots, and a radio frame (10 ms composed of 10 subframes) ) 1 ms which is the same time interval as the subframe is also referred to as a transmission time interval (TransmitTransTime Interval: TTI).
- TTI TransmissionTransTime Interval
- a plurality of downlink physical resource blocks are arranged according to the bandwidth of DL-CC.
- a unit composed of one subcarrier and one OFDM symbol is referred to as a downlink resource element.
- each downlink subframe PDCCH, PCFICH, PHICH, PDSCH, a downlink reference signal, and the like are arranged.
- the PDCCH is arranged from the first OFDM symbol of the subframe (the area hatched with a left oblique line in FIG. 3).
- the number of OFDM symbols in which the PDCCH is arranged is different for each subframe, and information indicating the number of OFDM symbols in which the PDCCH is arranged is broadcast by PCFICH.
- 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 (the area hatched with a mesh line in FIG. 3).
- the PHICH may be arranged only in the first OFDM symbol of the subframe, or may be arranged dispersed in a plurality of OFDM symbols in which the PDCCH is arranged.
- a plurality of PHICHs are frequency multiplexed and code multiplexed.
- the mobile station apparatus 1 receives HARQ feedback for this PUSCH in a PHICH of a downlink subframe after a predetermined time (for example, 4 ms, 4 subframes, and 4 TTIs) after transmitting the PUSCH.
- a predetermined time for example, 4 ms, 4 subframes, and 4 TTIs
- PDSCH is arranged in an OFDM symbol other than the OFDM symbol in which PDCCH, PCFICH, and PHICH are arranged in a subframe (in FIG. 3, a region that is not hatched).
- PDSCH radio resource allocation is indicated to 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.
- PDSCH and PDCCH corresponding to this PDSCH are arranged on the same or different downlink component carriers.
- 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. 3 for simplicity of explanation, but the downlink reference signal is distributed and arranged in the frequency domain and the time domain.
- FIG. 4 is a schematic diagram showing an example of the configuration of an uplink radio frame according to the present invention.
- the horizontal axis is the time domain
- the vertical axis is the frequency domain.
- a UL-CC radio frame is composed of a plurality of uplink physical resource block pairs (for example, an area surrounded by a broken line in FIG. 4).
- 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. 4) is composed of 12 subcarriers in the frequency domain, and is composed of 7 SC-FDMA symbols (71 ⁇ s) in the time domain. Composed.
- SC-FDMA Single-Carrier-Frequency-Division-Multiple-Access
- 71 ⁇ s slot (0.5 ms)
- two slot subframes (1 ms)
- 10 There is a radio frame (10 ms) composed of subframes. 1 ms which is the same time interval as the subframe is also referred to as a transmission time interval (TransmitTransTime Interval: TTI).
- TTI TransmissionTransTime Interval
- a plurality of uplink physical resource blocks are arranged according to the UL-CC bandwidth.
- a unit composed of one subcarrier and one SC-FDMA symbol is referred to as an uplink resource element.
- PUCCH, PUSCH, PRACH, an uplink reference signal, etc. are arrange
- the PUCCH is arranged in uplink physical resource blocks (regions hatched with left diagonal lines) at both ends of the uplink band.
- 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.
- a plurality of PUSCHs are frequency multiplexed and spatially multiplexed.
- the uplink reference signal is time-multiplexed with PUCCH and PUSCH.
- DMRS time-multiplexed with PUSCH is arranged in the fourth and eleventh SC-FDMA symbols in the subframe.
- the uplink reference signal is time-multiplexed with PUSCH and PUCCH and transmitted.
- the uplink reference signal is arranged in the same frequency band to which the PUSCH is assigned in the frequency domain, and is assigned to the fourth and eleventh SC-FDMA symbols in the time domain. Be placed.
- FIG. 5 is a diagram for explaining a method of simultaneously transmitting uplink data and ACK / NACK using the PUSCH of the present invention.
- the horizontal axis represents the time domain
- the vertical axis represents the arrangement of modulation symbol sequences to be mapped, and does not correspond to the frequency axis, but is subjected to DFT processing for each SC-FDMA symbol, It is mapped to the resource allocated in.
- ACK / NACK modulation symbols are arranged in the third, fifth, tenth and twelfth SC-FDMA symbols.
- ACK / NACK for the PDSCH of DL PCC is the first ACK / NACK (first response information)
- ACK / NACK for the PDSCH of one or more DL SCC is the second ACK / NACK (second response) Information).
- the third SC-FDMA symbol the first ACK / NACK modulation symbol, the second ACK / NACK modulation symbol, and the uplink data It shows that the signals are time-multiplexed in the order of modulation symbols, converted into frequency domain signals by DFT processing, and then allocated to the frequency band (physical resource block) allocated by the uplink grant.
- Uplink data, first ACK / NACK and second ACK / NACK are encoded separately.
- the ACK / NACK coded bit sequence and uplink data coded bit sequence divided into the number of modulation multi-level bits of the PUSCH modulation scheme are regarded as modulation symbols (coding symbols) as shown in FIG. After being rearranged, it is modulated.
- the modulation multi-level number is “2” in QPSK modulation, “4” in 16QAM, and “6” in 64QAM.
- the second ACK / NACK modulation symbol is not arranged, and the second ACK / NACK modulation symbol in FIG. 5 is arranged.
- modulation symbols for uplink data are arranged.
- the first ACK / NACK is encoded the same with and without the second ACK / NACK, and is arranged at the same position in FIG.
- both the first ACK / NACK and the second ACK / NACK are transmitted by the PUSCH. .
- the first ACK / NACK indicates NACK.
- the number of ACK / NACK bits used when transmitting ACK / NACK on the PUSCH can be spatially multiplexed on one PDSCH with the number of DL-CCs in which the mobile station apparatus 1 is set in the base station apparatus 3 It is a value obtained by multiplying the maximum number of downlink data.
- the mobile station apparatus 1 When three DL CCs are set and up to two downlink data can be spatially multiplexed on one PDSCH, the mobile station apparatus 1 generates 6-bit ACK / NACK. That is, one bit of ACK / NACK is generated for each downlink data received by DL-CC.
- the mobile station apparatus 1 performs communication only in the primary cell (DL PCC and UL PCC) for a long time. Therefore, when the PDSCH is received only in the DL PCC, the DL By not transmitting the ACK / NACK for the SCC, it is not necessary to transmit the ACK / NACK for the DL-SCC even though the PD-SCH is not received by the DL-SCC, thereby efficiently using the PUSCH radio resources. be able to.
- both the first ACK / NACK and the second ACK / NACK are generated.
- ACK / NACK encoding or ACK / NACK modulation symbol mapping depending on whether or not a DL PCC PDSCH is received. Therefore, the configuration of the mobile station apparatus 1 can be simplified.
- the mobile station apparatus 1 when the mobile station apparatus 1 does not receive the PDSCH by the DL-PCC and receives the PDSCH by at least one DL-SCC, only the second ACK / NACK may be generated.
- the modulation symbol of the uplink data is arranged at the position where the modulation symbol of the first ACK / NACK in FIG. 5 is arranged, and the modulation symbol of the second ACK / NACK is the first ACK / NACK. It is placed at the same position as when there is.
- the second ACK / NACK modulation symbol is arranged at the same position regardless of whether or not the first ACK / NACK is present. Therefore, even when the mobile station apparatus 1 does not decode the PDSCH transmitted by the base station apparatus 3 using DL ⁇ ⁇ PCC, the base station apparatus 3 can correctly receive the second ACK / NACK.
- PDSCH is received by at least one DL SCC, but when PDSCH is received only by a part of the set DL CC, the DL that has not received PDSCH among the set DL CC.
- ACK / NACK is set to a predetermined value.
- the mobile station apparatus 1 succeeds in decoding the two downlink data received by the first DL SCC without receiving the downlink data by the DL PCC among the three set DL CCs, If the decoding of one downlink data received by the DL-SCC in which is set, the mobile station apparatus 1 sets “00” as the first ACK / NACK sequence and “00” as the second ACK / NACK sequence. “1100” is generated.
- the bit value is set to 1, and in the case of NACK, the bit value is set to 0.
- the base station apparatus 3 sets the ACK / NACK bit to a predetermined value so that the base station apparatus 3 ACK / NACK for DL CC that did not transmit downlink data at the same time is set to a predetermined value, so that the reception accuracy of ACK / NACK for downlink data transmitted to the remaining mobile station apparatus 1 is determined. Will improve.
- the mobile station apparatus 1 arranges the ACK / NACK bits in the order of the DL SCC number set for each DL ⁇ SCC, so that the base station device 3 uses the DL SCC in which the ACK / NACK bit is transmitted. Can be recognized correctly.
- the number of ACK / NACK bits may be determined from the number of DL-CCs in which the mobile station apparatus 1 is set in the base station apparatus 3 and the maximum number of downlink data that can be spatially multiplexed on the PDSCH for each DL-CC. Good.
- the mobile station apparatus 1 in which one DL-CC that can spatially multiplex two downlink data on the PDSCH and two DL-CC that can multiplex only one downlink data on the PDSCH has four ACK / NACK bits. Is generated.
- the number of ACK / NACK bits may be a value obtained by multiplying the number of activated DL-CCs by the maximum number of downlink data that can be spatially multiplexed on one PDSCH.
- the maximum number of downlink data that can be spatially multiplexed on the PDSCH for each DL-CC is determined by the transmission mode of the downlink data (for example, MIMO-SM, transmission diversity).
- the number of ACK / NACK bits may be determined from the number of activated DL CCs.
- the number of ACK / NACK modulation symbols used when transmitting ACK / NACK on the PUSCH is the number of bits of the first ACK / NACK transmitted on the PUSCH, the number of bits of the second ACK / NACK, It is obtained from the amount of radio resources at the time of initial transmission of uplink data, the number of bits of uplink data (transport block size: transport block size), the offset set by the base station apparatus 3, and the like.
- Expression (1) is an expression for calculating the number of ACK / NACK modulation symbols used when transmitting ACK / NACK on PUSCH.
- Q ' is the number of modulation symbols of the first ACK / NACK.
- Q ′′ is the number of modulation symbols of the second ACK / NACK.
- Q '' ' is the sum of the number of first ACK / NACK modulation symbols and the number of second ACK / NACK modulation symbols transmitted on the PUSCH.
- O ′ is the number of bits of the first ACK / NACK generated by the mobile station apparatus 1 of the present invention.
- O ′′ is the number of bits of the second ACK / NACK generated by the mobile station apparatus 1 of the present invention.
- O ′′ is set to “0”.
- the offset value set by the base station apparatus 3 is set separately for the first ACK / NACK and the second ACK / NACK.
- the mobile station device 1 uses the first ACK / NACK offset and the second ACK / NACK offset values set by the base station device 3 to use the first ACK / NACK and the second ACK / NACK. Separately calculate the number of modulation symbols used for transmission of.
- the first ACK / NACK and second ACK / NACK are used for transmission.
- the performance of the first ACK / NACK and the second ACK / NACK can be adjusted to be the same.
- the offset for the first ACK / NACK and the offset for the second ACK / NACK are made common so that the base station apparatus 3 satisfies both the first ACK / NACK and the second ACK / NACK.
- a common offset may be set for the mobile station apparatus 1 and notified to the mobile station apparatus 1.
- the amount of PUSCH radio resources used for transmission of the first ACK / NACK and the second ACK / NACK cannot be adjusted separately, but the ACK notified by the base station device 3 to the mobile station device 1 Since the amount of information related to the / NACK offset is reduced, downlink radio resources can be saved.
- the maximum number of ACK / NACK modulation symbols that can be arranged is in the frequency band allocated to PUSCH. This is four times the number of subcarriers included.
- Q ′′ ′′ exceeds the maximum number in which modulation symbols for ACK / NACK can be arranged, the number is reduced from the number of resource elements for arranging modulation symbols for ACK / NACK for the PDSCH of DL SCC.
- Expression (2) is an expression for preventing Q ′ ′′ from exceeding the maximum number in which modulation symbols for ACK / NACK can be arranged.
- min ( ⁇ ) is a function that outputs the smallest value among a plurality of values in parentheses.
- Nmax is the maximum number in which modulation symbols of ACK / NACK can be arranged.
- the number of ACK / NACK modulation symbols for DLNPCC may be reduced.
- the ACK / NACK for the PDSCH of the DL SCC is given priority over the ACK / NACK of the DL PCC that has only 2 bits.
- Equations (3) and (4) are used when Q ′ ′′ exceeds the maximum number of ACK / NACK modulation symbols that can be arranged, and is reduced from the number of ACK / NACK modulation symbols arranged for DL PCC. This is an equation for calculating Q ′ and Q ′′.
- FIG. 6 is a diagram illustrating the uplink data and ACK / NACK encoding method of the present invention.
- uplink data, first ACK / NACK, and second ACK / NACK are encoded separately (step S100).
- the second ACK / NACK for a plurality of DL SCCs are encoded together.
- the uplink data is turbo encoded.
- the ACK / NACK for the PDSCH of a plurality of DL SCCs is encoded by a Reed-Muller code.
- the ACK / NACK for the DLCPCC PDSCH is encoded by channel coding using a repetitive code or the like, and a coded bit having a predetermined value is inserted into every two generated coded bits.
- the number of encoded bits having a predetermined value to be inserted is determined by the PUSCH modulation scheme.
- PUSCH When the PUSCH is modulated by 16QAM (Quadrature Amplitude Modulation), two encoded bits having a predetermined value are inserted every two generated encoded bits.
- 16QAM Quadrature Amplitude Modulation
- 64QAM four encoded bits having a predetermined value are inserted every two generated encoded bits.
- the ACK / NACK modulation symbol for the DLCPCC PDSCH includes only 2-bit information, and the number of ACK / NACK modulation symbol signal points is limited to four. . Also, the encoded bits and the signal points are associated with each other so that these four signal points become the four signal points having the maximum amplitude of 16QAM or 64QAM.
- the PUSCH when the PUSCH is modulated by 16QAM, when the sequence of ACK / NACK coding bits for the DL PCC PDSCH is “110110”, the coding bits of a predetermined value (x) are included in this sequence. It is inserted and becomes “11xx01xx10” (x is a predetermined value of 0 or 1). Further, “00xx”, “01xx”, “10xx”, and “11xx” are associated with four signal points having the maximum 16QAM or 64QAM amplitude. Accordingly, even if the mobile station apparatus 1 modulates the ACK / NACK encoded bits with 16QAM or 64QAM, the base station apparatus 3 can handle the modulation symbol of ACK / NACK as QPSK. Hereinafter, this method is referred to as virtual QPSK.
- the encoded bit sequence of the second ACK / NACK is combined with the encoded bit sequence of the first ACK / NACK. (Multiplexed) (Step S101).
- FIG. 7 is a diagram illustrating an example of a method of combining the first ACK / NACK and the second ACK / NACK according to the present invention.
- the ACK / NACK coded bit sequence length P ′ ′′ transmitted on the PUSCH is the product of Q ′′ ′′ and the PUSCH modulation multilevel number m.
- the sequence length P ′ of the coded bits of the first ACK / NACK transmitted on the PUSCH is the product of Q ′ and the modulation multilevel number m of the PUSCH.
- the sequence length P ′′ of the encoded bits of the second ACK / NACK transmitted on the PUSCH is a product of Q ′′ and the modulation multilevel number m of the PUSCH.
- the encoded bit sequence length of the first ACK / NACK encoded in step S100 is shorter than P ′.
- the first ACK / NACK encoded bits are repeatedly arranged from the head portion until the same number of bits as P ′.
- the encoded bit sequence length of the second ACK / NACK encoded in step S100 is longer than P ′′.
- the encoded bits of the second ACK / NACK are cut off from the head part to the number of P ′′. That is, the tail part of the second ACK / NACK encoded bit exceeding P ′′ is not transmitted on the PUSCH.
- the first ACK / NACK encoded bit and the second ACK / NACK encoded bit that are repeated from the head or cut from the head portion are combined.
- step S102 the encoded bits of uplink data and the encoded bits of ACK / NACK are rearranged as shown in FIG. 5 (step S102).
- the encoded bits of the uplink data are arranged in an area other than the DMRS in FIG.
- the encoded bits of the uplink data arranged in the ACK / NACK area in FIG. 5 are replaced with the encoded bits of the first ACK / NACK and / or the encoded bits of the second ACK / NACK. Go.
- the PDSCH is received only by the DL PCC, only the encoding process for the first ACK / NACK is performed, and the encoding process for the second ACK / NACK is not performed.
- FIG. 8 is a schematic block diagram showing the configuration of the mobile station apparatus 1 of the present invention.
- 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, a HARQ control unit 1013, and an ACK / NACK generation unit 1015.
- 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 modulation unit 1073, a multiplexing unit 1075, a radio transmission unit 1077, and an uplink reference signal generation unit 1079.
- the upper layer processing unit 101 outputs uplink data generated by a user operation or the like to the transmission unit 107.
- the upper layer processing unit 101 includes a medium access control (MAC: Medium Access Control) layer, a packet data integration protocol (Packet Data Convergence Protocol: PDCP) layer, a radio link control (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.
- MAC Medium Access Control
- PDCP Packet Data Convergence Protocol
- RLC Radio Link Control
- RRC Radio Resource Control
- the radio resource control unit 1011 included in the upper layer processing unit 101 manages various setting information of the own device. For example, the radio resource control unit 1011 manages the set CC. Also, the radio resource control unit 1011 generates information arranged in each uplink channel and outputs the information to the transmission unit 107.
- the HARQ control unit 1013 included in the higher layer processing unit 101 performs HARQ control of downlink data.
- the HARQ control unit 1013 instructs the ACK / NACK generation unit 1015 to generate an ACK and transmit it to the base station apparatus 3, and fails to decode the received downlink data.
- the ACK / NACK generation unit 1015 is instructed to generate a NACK and transmit it to the base station apparatus 3.
- the HARQ control unit 1013 holds the downlink data in the HARQ buffer when the decoding of the downlink data fails, and the retransmission is performed when the downlink data retransmitted by the base station device 3 is received.
- the decoding process is performed by combining the downlink data and the downlink data held in the HARQ buffer.
- the ACK / NACK generation unit 1015 included in the higher layer processing unit 101 generates ACK or NACK according to the instruction of the HARQ control unit 1013, and rearranges the ACK / NACK bits.
- the ACK / NACK generation unit 1015 generates only the first ACK / NACK when the downlink data is received only by DL-PCC, and the first ACK / NACK generation unit 1015 receives the downlink data by at least one DL-SCC. Generate a NACK and a second ACK / NACK.
- the ACK / NACK generation unit 1015 receives ACK / NACK. NACK is generated as NACK.
- ACK / NACK generation section 1015 calculates the number of ACK / NACK modulation symbols when transmitting ACK / NACK on PUSCH, generates ACK / NACK modulation symbols of the calculated number of modulation symbols, and transmits ACK / NACK and uplink Control information is generated to control the transmission unit 107 so as to transmit both link data via PUSCH, and is output to the control unit 103.
- the control unit 103 generates a control signal for controlling the receiving unit 105 and the transmitting 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 the downlink signal received via the transmission / reception antenna 109 into an intermediate frequency (down-conversion: 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 (Guard Interval: GI) from the converted digital signal, performs a fast Fourier transform (FFT Fourier Transform: FFT) on the signal from which the guard interval is removed, Extract the region signal.
- GI Guard Interval
- FFT fast Fourier transform
- the demultiplexing unit 1055 separates the extracted signals into PHICH, PDCCH, PDSCH, and downlink reference signals. 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.
- the demodulating unit 1053 multiplies the PHICH by a corresponding code and synthesizes the signal, demodulates the synthesized signal using a BPSK (Binary Phase Shift Shift Keying) modulation method, and outputs the demodulated signal to the decoding unit 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 QPSK modulation scheme for PDCCH 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.
- the demodulation unit 1053 demodulates the modulation scheme notified by downlink assignment such as QPSK (Quadrature Phase Shift Keying), 16QAM (Quadrature Amplitude Modulation), 64QAM, and the like, and outputs the result to the decoding unit 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 (transport block) to higher layer processing section 101.
- the channel measurement unit 1059 measures the downlink path loss and channel state from the downlink reference signal input from the demultiplexing unit 1055, and outputs the measured path loss and channel state to the upper layer processing unit 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 coding unit 1071 performs coding such as convolution coding and block coding on the uplink control information input from the higher layer processing unit 101, and relates to the coding rate in which the uplink data is notified by the uplink grant. Turbo coding is performed based on the information.
- encoding section 1071 When transmitting ACK / NACK along with uplink data using PUSCH, encoding section 1071 encodes ACK / NACK and uplink data as shown in FIG. 6 according to the control signal input from control section 103, and transmits ACK / NACK.
- the encoded bits of NACK and uplink data are rearranged as shown in FIG.
- the modulation unit 1073 modulates the coded bits input from the coding unit 1071 using a modulation method notified by downlink control information such as BPSK, QPSK, 16QAM, 64QAM, or a modulation method predetermined for each channel.
- Modulation section 1073 transmits using the same PUSCH by using MIMO-SM based on the number of spatially multiplexed sequences notified by the uplink grant and information indicating precoding to be performed on the sequences.
- a sequence of modulation symbols of a plurality of uplink data is mapped to a plurality of sequences larger than the number of uplink data transmitted on the same PUSCH, and precoding is performed on the sequences.
- the uplink reference signal generation unit 1079 is notified by a physical cell identifier for identifying the base station device 3 (referred to as physical cell identity: PCI, Cell ⁇ ID, etc.), a bandwidth for arranging the uplink reference signal, and an 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.
- the multiplexing unit 1075 rearranges the PUSCH modulation symbols in parallel in accordance with the control signal input from the control unit 103, and then performs discrete Fourier transform (Discrete Fourier Transform: DFT) to generate the PUCCH and PUSCH signals and the generated uplink reference The signal is multiplexed for each transmission antenna port.
- DFT discrete Fourier Transform
- the radio transmission unit 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.
- IFFT inverse fast Fourier transform
- 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-conversion: up convert), an extra frequency component is removed, the power is amplified, and output to the transmission / reception antenna 109 for transmission.
- FIG. 9 is a schematic block diagram showing the configuration of the base station apparatus 3 of the present invention.
- 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 higher layer processing unit 301 includes a radio resource control unit 3011, a HARQ control unit 3013, and an ACK / NACK detection unit 3015.
- the reception unit 305 includes a decoding unit 3051, a demodulation 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: Medium Access Control) layer, a packet data integration protocol (Packet Data Convergence Protocol: PDCP) layer, a radio link control (Radio Link Control: RLC) layer, 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.
- MAC Medium Access Control
- PDCP Packet Data Convergence Protocol
- RLC Radio Link Control
- Radio Radio Resource
- the radio resource control unit 3011 included in the higher layer processing unit 301 generates downlink data, RRC signal, MAC CE (Control Element) arranged in the downlink PDSCH, or obtains it from the upper 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 CC set in the mobile station apparatus 1.
- the HARQ control unit 3013 provided in the higher layer processing unit 301 controls HARQ of downlink data.
- the HARQ control unit 3013 holds the downlink data acquired from the radio resource control unit 3011 in the HARQ buffer, and receives a NACK from the mobile station apparatus 1 for the downlink data held in the HARQ buffer. Outputs the retained downlink data to the transmission unit 307, generates control information for performing control to retransmit, and outputs the control information to the control unit 303.
- the ACK / NACK detection unit 3015 included in the higher layer processing unit 301 generates control information for controlling the ACK / NACK decoding process of the reception unit 305 and outputs the control information to the control unit 303.
- the ACK / NACK detection unit 3015 determines the number of ACK / NACK bit sequences transmitted from the mobile station apparatus 1 based on the number of downlink component carriers set in the mobile station apparatus 1 and the ACK / NACK arranged in the PUSCH. Calculate the number of modulation symbols.
- the ACK / NACK detection unit 3015 When the DL / PCC only transmits downlink data to the mobile station apparatus 1, the ACK / NACK detection unit 3015 includes only the first ACK / NACK in the PUSCH and includes the second ACK / NACK. Judge that it is not. The ACK / NACK detection unit 3015 determines that the ACK / NACK for the DL-CC that has not transmitted downlink data to the mobile station apparatus 1 is set to NACK.
- the ACK / NACK detection unit 3015 separates the ACK / NACK modulation symbols included in the PUSCH based on the calculated number of ACK / NACK modulation symbols, and separates the first ACK / NACK and the second ACK / NACK.
- the receiving unit 305 is controlled via the control unit 303 so as to be decoded.
- 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.
- the radio reception unit 3057 converts an uplink signal received via the transmission / reception antenna 309 into an intermediate frequency (down-conversion: 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 receiver 3057 removes a portion corresponding to a guard interval (Guard Interval: GI) from the converted digital signal.
- the radio reception unit 3057 performs fast Fourier transform (FFT 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.
- FFT Fourier Transform ⁇ FFT
- the demultiplexing unit 3055 demultiplexes the signal input from the radio receiving 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 demodulation unit 3053 performs inverse discrete Fourier transform (Inverse Discrete Fourier Transform: IDFT) of PUSCH, acquires modulation symbols, and performs BPSK (Binary Shift Keying), QPSK, 16QAM, PUCCH and PUSCH modulation symbols, respectively.
- IDFT Inverse Discrete Fourier Transform
- the received signal is demodulated using a predetermined modulation scheme such as 64QAM, or a modulation scheme that the own device has previously notified to each mobile station device 1 using an uplink grant.
- Demodulation section 3053 separates the modulation symbol of uplink data, the modulation symbol of the first ACK / NACK, and the modulation symbol of the second ACK / NACK included in the PUSCH according to the control signal input from control section 303.
- Demodulation section 3053 is the same by using MIMO-SM based on the number of spatially multiplexed sequences notified in advance to each mobile station apparatus 1 using an uplink grant and information indicating precoding to be performed on these sequences.
- the modulation symbols of a plurality of uplink data transmitted on the PUSCH are separated.
- the decoding unit 3051 outputs the demodulated uplink control information and the encoded bits of the uplink data to the mobile station apparatus 1 using an uplink grant according to a predetermined encoding method or a predetermined encoding method. Decoding is performed at the previously notified coding rate, and the decoded uplink data and uplink control information are output to the upper layer processing section 301. When PUSCH is retransmitted, decoding section 3051 performs decoding using the encoded bits held in the HARQ buffer input from higher layer processing section 301 and the demodulated encoded bits.
- the decoding unit 3051 separately decodes the encoded bits of the first ACK / NACK and the second ACK / NACK.
- 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 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 obtains a sequence known by the mobile station device 1 as a downlink reference signal, which is obtained by a predetermined rule based on a physical cell identifier (PCI) for identifying the base station device 3 or the like. Generate.
- the multiplexing unit 3075 multiplexes the modulated modulation symbol of each channel and the generated downlink reference signal.
- the wireless transmission unit 3077 performs inverse fast Fourier transform (Inverse Fast Fourier Transform: IFFT) on the multiplexed modulation symbols, etc., performs modulation in the OFDM scheme, adds a guard interval to the OFDM symbol that has been OFDM-modulated, and baseband
- IFFT inverse Fast Fourier Transform
- 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-conversion: up convert), an extra frequency component is removed, power is amplified, and output to the transmission / reception antenna 309 for transmission.
- the mobile station apparatus 1 has DL PCC (first downlink component).
- One or more first ACK / NACKs (first response information) indicating success or failure of decoding of one or more downlink data received on the carrier) are encoded together, and a plurality of DL SCC (second A plurality of second ACK / NACKs (second response information) indicating success / failure of decoding of downlink data received by the downlink component carrier) are encoded together, and the first ACK / NACK and the second ACK / NACK are encoded.
- the base station apparatus 3 receives the PUSCH, and receives the first ACK / NACK and the second ACK.
- / NACK decoding processing is performed separately.
- the mobile station device 1 when the PDSCH is received only by the DL-PCC, the mobile station device 1 generates only the first ACK / NACK and transmits it by the PUSCH.
- the base station apparatus 3 and the mobile station apparatus 1 perform downlink communication using only the DL-PCC PDSCH, so that the mobile station apparatus 1 performs the second transmission for the DL-SCC PDSCH. Since ACK / NACK is not transmitted on the PUSCH, the radio resources of the PUSCH can be used efficiently for uplink data transmission.
- the base station apparatus 3 and the mobile station apparatus 1 communicate using a plurality of PDSCHs simultaneously using a DL PCC and a plurality of DL PCSCs.
- the performance of the second ACK / NACK is improved by encoding the plurality of second ACK / NACKs for the plurality of DL SCCs together with encoding the plurality of second ACK / NACKs separately. To do.
- the base station device 3 transmits a plurality of PDSCHs to the mobile station device 1 using DL PCC and one or more DL SCCs
- the mobile station device 1 receives the PDSCH only by the DL PCC only.
- the base station apparatus 3 since the mobile station apparatus 1 encodes the first ACK / NACK and applies the mapping method in the same manner as when the PD SCCC PDSCH is received, the base station apparatus 3 correctly receives the first ACK / NACK. can do.
- the radio communication system according to the present embodiment is a radio communication system in which a mobile station apparatus and a base station apparatus perform radio communication using a plurality of component carriers, and the mobile station apparatus is a first downlink component carrier. 1 or a plurality of first response information indicating success or failure of decoding of one or a plurality of downlink data received in step 1 is encoded together to decode downlink data received by a plurality of second downlink component carriers.
- a plurality of second response information indicating success or failure are encoded together, the first response information and the second response information are transmitted on the same uplink data transmission channel, and the base station apparatus transmits the uplink data The transmission channel is received, and the first response information and the second response information are separately decoded.
- the base station device sets one first downlink component carrier and a plurality of second downlink component carriers for each mobile station device. It is characterized by.
- the present embodiment provides the number of encoded bits of first response information that the mobile station apparatus can transmit on the uplink data transmission channel, and the uplink data transmission It is characterized by separately calculating the number of encoded bits of the second response information that can be transmitted on the trusted channel.
- the number of bits of response information that the mobile station apparatus can transmit on the uplink data transmission channel is set to the first response information and the second response information.
- the encoded bits of the first response information are preferentially transmitted on the uplink data transmission channel.
- the number of bits of response information that the mobile station apparatus can transmit on the uplink data transmission channel is set to the first response information and the second response information.
- the sum of the encoded bits of the response information exceeds the encoded bit of the second response information, it is preferentially transmitted on the uplink data transmission channel.
- the present embodiment provides the mobile station when the base station apparatus calculates the number of encoded bits of the first response information that can be transmitted on the uplink data transmission channel.
- the first offset value used by the station device and the second offset used by the mobile station device when calculating the number of encoded bits of the second response information that can be transmitted on the uplink data transmission channel It is characterized in that the value of is set separately.
- the present embodiment is characterized in that, in the above wireless communication system, the mobile station apparatus transmits the first response information and the second response information using the same SC-FDMA symbol.
- the mobile station apparatus when the mobile station apparatus receives downlink data only on the first downlink component carrier, only the first response information is the uplink data. It is characterized by transmitting on a transmission channel.
- the mobile station apparatus when the mobile station apparatus receives downlink data on at least one second downlink component carrier, the first response information and the first response information The second response information is transmitted through the uplink data transmission channel.
- the mobile station apparatus receives downlink data using at least one second downlink component carrier.
- the second response information is set to a predetermined value.
- the mobile station apparatus of the present embodiment is a mobile station apparatus that performs radio communication with a base station apparatus using a plurality of component carriers, and one or a plurality of downlinks received by the first downlink component carrier A plurality of second response information indicating the success or failure of the decoding of the downlink data received by a plurality of second downlink component carriers together with one or more first response information indicating the success or failure of the data decoding And the first response information and the second response information are transmitted on the same uplink data transmission channel.
- the base station apparatus of the present embodiment is a base station apparatus that performs radio communication with a mobile station apparatus using a plurality of component carriers, and the mobile station apparatus receives the first downlink component carrier 1
- a plurality of first and second response information indicating success or failure of decoding of one or more downlink data are encoded together to indicate success or failure of decoding of downlink data received by a plurality of second downlink component carriers.
- the second response information is encoded together, the uplink response transmission channel including the first response information and the second response information is received, and the first response information and the second response information are received.
- the response information is decrypted separately.
- the radio communication method of the present embodiment is a radio communication method used for a mobile station apparatus that performs radio communication with a base station apparatus using a plurality of component carriers, and is received by a first downlink component carrier. Encoding one or more first response information indicating success or failure of decoding of one or more downlink data, and success or failure of decoding of downlink data received by a plurality of second downlink component carriers A plurality of second response information indicating the same, and a step of transmitting the first response information and the second response information through the same uplink data transmission channel.
- the radio communication method is a radio communication method used for a base station apparatus that performs radio communication with a mobile station apparatus using a plurality of component carriers, and the mobile station apparatus includes a first downlink.
- One or a plurality of first response information indicating success or failure of decoding of one or a plurality of downlink data received by a component carrier is encoded together, and downlink data received by a plurality of second downlink component carriers is encoded.
- the integrated circuit of the present embodiment is an integrated circuit used in a mobile station apparatus that performs radio communication with a base station apparatus using a plurality of component carriers, and is one or more received by the first downlink component carrier Indicates the success or failure of decoding downlink data received by a plurality of second downlink component carriers, together with a function of encoding one or more first response information indicating success or failure of decoding of a plurality of downlink data.
- a series of functions including a function of encoding a plurality of second response information together and a function of transmitting the first response information and the second response information through the same uplink data transmission channel It is characterized by having a station device exhibit.
- the integrated circuit of the present embodiment is an integrated circuit used in a base station apparatus that performs radio communication with a mobile station apparatus using a plurality of component carriers, and the mobile station apparatus includes a first downlink component carrier. 1 or a plurality of first response information indicating success or failure of decoding of one or a plurality of downlink data received in step 1 is encoded together to decode downlink data received by a plurality of second downlink component carriers. A plurality of second response information indicating success or failure, and a function of receiving an uplink data transmission channel transmitted including the first response information and the second response information; and the first response The mobile station apparatus is caused to exhibit a series of functions of separately performing information and a function of separately decoding the second response information.
- 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 functions as a computer) that controls a CPU (Central Processing Unit) 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.
- 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 or a CD-ROM, and a hard disk incorporated in a computer system.
- 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,
- 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.
- a part or all of the mobile station apparatus 1 and the base station apparatus 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.
- the method of circuit integration is not limited to LSI, and may be realized by a dedicated circuit or a general-purpose processor.
- an integrated circuit based on the technology can also be used.
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Abstract
Description
3 基地局装置
101 上位層処理部
103 制御部
105 受信部
107 送信部
301 上位層処理部
303 制御部
305 受信部
307 送信部
1011 無線リソース制御部
1013 HARQ制御部
1015 ACK/NACK生成部
3011 無線リソース制御部
3013 HARQ制御部
3015 ACK/NACK検出部
Claims (21)
- 基地局装置によって複数のコンポーネントキャリアで送信されたトランスポートブロックに対する複数のACK/NACKを前記基地局装置に送信する移動局装置において、
第一のACK/NACKと第二のACK/NACKとを別々に符号化し、
前記第一のACK/NACKの符号化ビット数が第一の値になるまで前記第一のACK/NACKの符号化ビットに繰り返し処理を実行し、
前記第二のACK/NACKの符号化ビット数が第二の値になるまで前記第二のACK/NACKの符号化ビットに繰り返し処理を実行し、
前記繰り返し処理を実行した第一のACK/NACKの符号化ビットと前記繰り返し処理を実行した第二のACK/NACKの符号化ビットとを連結させ、
前記第一のACK/NACKと前記第二のACK/NACKとを1つの物理上りリンクチャネルを用いて前記基地局装置に送信することを特徴とする移動局装置。 - 前記物理上りリンクチャネルは物理上りリンク共用チャネルであり、
前記第一の値および前記第二の値は、前記物理上りリンク共用チャネルで使用される変調次数の正の整数倍であることを特徴とする請求項1に記載の移動局装置。 - 前記繰り返し処理は、前記第一のACK/NACKの符号化ビットが前記第一の値よりも小さい場合には、前記第一のACK/NACKの符号化ビットを、先頭から繰り返して連結する処理であることを特徴とする請求項1または請求項2に記載の移動局装置。
- 前記繰り返し処理は、前記第二のACK/NACKの符号化ビットが、前記第二の値よりも小さい場合には、前記第二のACK/NACKの符号化ビットを、先頭から繰り返して連結する処理であることを特徴とする請求項1または請求項2に記載の移動局装置。
- 前記繰り返し処理は、前記第一のACK/NACKの符号化ビットが前記第一の値よりも大きい場合には、前記第一のACK/NACKの符号化ビットを、先頭から前記第一の値まで切り取る処理であることを特徴とする請求項1または請求項2に記載の移動局装置。
- 前記繰り返し処理は、前記第二のACK/NACKの符号化ビットが前記第二の値よりも大きい場合には、前記第二のACK/NACKの符号化ビットを、先頭から前記第二の値まで切り取る処理であることを特徴とする請求項1または請求項2に記載の移動局装置。
- 移動局装置へ複数のコンポーネントキャリアで送信されたトランスポートブロックに対する複数のACK/NACKを前記移動局装置から受信する基地局装置において、
別々に符号化された第一のACK/NACKと第二のACK/NACKとを1つの物理上りリンクチャネルを用いて前記移動局装置から受信し、
前記第一のACK/NACKの符号化ビットは、前記移動局装置によって前記第一のACK/NACKの符号化ビット数が第一の値になるまで繰り返し処理が実行され、
前記第二のACK/NACKの符号化ビットは、前記移動局装置によって前記第二のACK/NACKの符号化ビット数が第二の値になるまで繰り返し処理が実行され、
前記繰り返し処理が実行された第一のACK/NACKの符号化ビットと前記繰り返し処理が実行された第二のACK/NACKの符号化ビットとは、前記移動局装置によって連結されることを特徴とする基地局装置。 - 前記物理上りリンクチャネルは物理上りリンク共用チャネルであり、
前記第一の値および前記第二の値は、前記物理上りリンク共用チャネルで使用される変調次数の正の整数倍であることを特徴とする請求項7に記載の基地局装置。 - 前記繰り返し処理は、前記第一のACK/NACKの符号化ビットが前記第一の値よりも小さい場合には、前記第一のACK/NACKの符号化ビットを、先頭から繰り返して連結する処理であることを特徴とする請求項7または請求項8に記載の基地局装置。
- 前記繰り返し処理は、前記第二のACK/NACKの符号化ビットが、前記第二の値よりも小さい場合には、前記第二のACK/NACKの符号化ビットを、先頭から繰り返して連結する処理であることを特徴とする請求項7または請求項8に記載の基地局装置。
- 前記繰り返し処理は、前記第一のACK/NACKの符号化ビットが前記第一の値よりも大きい場合には、前記第一のACK/NACKの符号化ビットを、先頭から前記第一の値まで切り取る処理であることを特徴とする請求項7または請求項8に記載の基地局装置。
- 前記繰り返し処理は、前記第二のACK/NACKの符号化ビットが前記第二の値よりも大きい場合には、前記第二のACK/NACKの符号化ビットを、先頭から前記第二の値まで切り取る処理であることを特徴とする請求項7または請求項8に記載の基地局装置。
- 移動局装置が、基地局装置によって複数のコンポーネントキャリアで送信されたトランスポートブロックに対する複数のACK/NACKを前記基地局装置に送信する無線通信システムにおいて、
前記移動局装置は、
第一のACK/NACKと第二のACK/NACKとを別々に符号化し、
前記第一のACK/NACKの符号化ビット数が第一の値になるまで前記第一のACK/NACKの符号化ビットに繰り返し処理を実行し、
前記第二のACK/NACKの符号化ビット数が第二の値になるまで前記第二のACK/NACKの符号化ビットに繰り返し処理を実行し、
前記繰り返し処理を実行した第一のACK/NACKの符号化ビットと前記繰り返し処理を実行した第二のACK/NACKの符号化ビットとを連結させ、
前記第一のACK/NACKと前記第二のACK/NACKとを1つの物理上りリンクチャネルを用いて前記基地局装置に送信し、
前記基地局装置は、
前記第一のACK/NACKと前記第二のACK/NACKとを前記1つの物理上りリンクチャネルを用いて前記移動局装置から受信することを特徴とする無線通信システム。 - 基地局装置によって複数のコンポーネントキャリアで送信されたトランスポートブロックに対する複数のACK/NACKを前記基地局装置に送信する移動局装置に用いられる無線通信方法において、
第一のACK/NACKと第二のACK/NACKとを別々に符号化し、
前記第一のACK/NACKの符号化ビット数が第一の値になるまで前記第一のACK/NACKの符号化ビットに繰り返し処理を実行し、
前記第二のACK/NACKの符号化ビット数が第二の値になるまで前記第二のACK/NACKの符号化ビットに繰り返し処理を実行し、
前記繰り返し処理を実行した第一のACK/NACKの符号化ビットと前記繰り返し処理を実行した第二のACK/NACKの符号化ビットとを連結させ、
前記第一のACK/NACKと前記第二のACK/NACKとを1つの物理上りリンクチャネルを用いて前記基地局装置に送信することを特徴とする無線通信方法。 - 前記物理上りリンクチャネルは、物理上りリンク共用チャネルであり、
前記第一の値および前記第二の値は、前記物理上りリンク共用チャネルで使用される変調次数の正の整数倍であることを特徴とする請求項14に記載の無線通信方法。 - 基地局装置へ複数のコンポーネントキャリアで送信されたトランスポートブロックに対する複数のACK/NACKを前記移動局装置から受信する基地局装置に用いられる無線通信方法において、
別々に符号化された第一のACK/NACKと第二のACK/NACKとを1つの物理上りリンクチャネルを用いて前記移動局装置から受信し、
前記第一のACK/NACKの符号化ビットは、前記移動局装置によって前記第一のACK/NACKの符号化ビット数が第一の値になるまで繰り返し処理が実行され、
前記第二のACK/NACKの符号化ビットは、前記移動局装置によって前記第二のACK/NACKの符号化ビット数が第二の値になるまで繰り返し処理が実行され、
前記繰り返し処理が実行された第一のACK/NACKの符号化ビットと前記繰り返し処理が実行された第二のACK/NACKの符号化ビットとは、前記移動局装置によって連結されることを特徴とする無線通信方法。 - 前記物理上りリンクチャネルは、物理上りリンク共用チャネルであり、
前記第一の値および前記第二の値は、前記物理上りリンク共用チャネルで使用される変調次数の正の整数倍であることを特徴とする請求項16に記載の無線通信方法。 - 基地局装置によって複数のコンポーネントキャリアで送信されたトランスポートブロックに対する複数のACK/NACKを前記基地局装置に送信する移動局装置に用いられる集積回路において、
第一のACK/NACKと第二のACK/NACKとを別々に符号化する機能と、
前記第一のACK/NACKの符号化ビット数が第一の値になるまで前記第一のACK/NACKの符号化ビットに繰り返し処理を実行する機能と、
前記第二のACK/NACKの符号化ビット数が第二の値になるまで前記第二のACK/NACKの符号化ビットに繰り返し処理を実行する機能と、
前記繰り返し処理を実行した第一のACK/NACKの符号化ビットと前記繰り返し処理を実行した第二のACK/NACKの符号化ビットとを連結させる機能と、
前記第一のACK/NACKと前記第二のACK/NACKとを1つの物理上りリンクチャネルを用いて前記基地局装置に送信する機能と、の一連の機能を、前記移動局装置に発揮させることを特徴とする集積回路。 - 前記物理上りリンクチャネルは、物理上りリンク共用チャネルであり、
前記第一の値および前記第二の値は、前記物理上りリンク共用チャネルで使用される変調次数の正の整数倍であることを特徴とする請求項18に記載の集積回路。 - 移動局装置へ複数のコンポーネントキャリアで送信されたトランスポートブロックに対する複数のACK/NACKを前記移動局装置から受信する基地局装置に用いられる集積回路において、
別々に符号化された第一のACK/NACKと第二のACK/NACKとを1つの物理上りリンクチャネルを用いて前記移動局装置から受信する機能を前記基地局装置に発揮させ、
前記第一のACK/NACKの符号化ビットは、前記移動局装置によって前記第一のACK/NACKの符号化ビット数が第一の値になるまで繰り返し処理が実行され、
前記第二のACK/NACKの符号化ビットは、前記移動局装置によって前記第二のACK/NACKの符号化ビット数が第二の値になるまで繰り返し処理が実行され、
前記繰り返し処理が実行された第一のACK/NACKの符号化ビットと前記繰り返し処理が実行された第二のACK/NACKの符号化ビットとは、前記移動局装置によって連結されることを特徴とする集積回路。 - 前記物理上りリンクチャネルは、物理上りリンク共用チャネルであり、
前記第一の値および前記第二の値は、前記物理上りリンク共用チャネルで使用される変調次数の正の整数倍であることを特徴とする請求項20に記載の集積回路。
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JPWO2013179540A1 (ja) * | 2012-05-31 | 2016-01-18 | パナソニック インテレクチュアル プロパティ コーポレーション オブアメリカPanasonic Intellectual Property Corporation of America | 端末装置、基地局装置、送信方法及び受信方法 |
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US20130156011A1 (en) | 2013-06-20 |
CN102972064B (zh) | 2016-02-10 |
US9215695B2 (en) | 2015-12-15 |
JP5816984B2 (ja) | 2015-11-18 |
JP2012253781A (ja) | 2012-12-20 |
TWI528751B (zh) | 2016-04-01 |
JPWO2012005145A1 (ja) | 2013-09-02 |
JP5044047B2 (ja) | 2012-10-10 |
TW201218676A (en) | 2012-05-01 |
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