WO2015159877A1 - 端末装置、基地局装置、集積回路、および、通信方法 - Google Patents
端末装置、基地局装置、集積回路、および、通信方法 Download PDFInfo
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- WO2015159877A1 WO2015159877A1 PCT/JP2015/061446 JP2015061446W WO2015159877A1 WO 2015159877 A1 WO2015159877 A1 WO 2015159877A1 JP 2015061446 W JP2015061446 W JP 2015061446W WO 2015159877 A1 WO2015159877 A1 WO 2015159877A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
- H04W52/04—Transmission power control [TPC]
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
- H04W52/04—Transmission power control [TPC]
- H04W52/06—TPC algorithms
- H04W52/08—Closed loop power control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
- H04W52/04—Transmission power control [TPC]
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
- H04W52/146—Uplink power control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
- H04W52/04—Transmission power control [TPC]
- H04W52/30—Transmission power control [TPC] using constraints in the total amount of available transmission power
- H04W52/32—TPC of broadcast or control channels
- H04W52/325—Power control of control or pilot channels
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
- H04W52/04—Transmission power control [TPC]
- H04W52/54—Signalisation aspects of the TPC commands, e.g. frame structure
Definitions
- the present invention relates to a terminal device, a base station device, an integrated circuit, and a communication method.
- This application claims priority based on Japanese Patent Application No. 2014-082834 filed in Japan on April 14, 2014, the contents of which are incorporated herein by reference.
- LTE Long Term Evolution
- EUTRA Evolved Universal Terrestrial Radio Access
- 3GPP Third Generation Partnership Project
- a base station apparatus is also called eNodeB (evolvedvolveNodeB), and a terminal device is also called UE (UserUEEquipment).
- LTE is a cellular communication system in which a plurality of areas covered by a base station apparatus are arranged in a cell shape. A single base station apparatus may manage a plurality of cells.
- LTE supports Time Division Duplex (TDD).
- TDD Time Division Duplex
- uplink signals and downlink signals are time division multiplexed.
- the traffic adaptation technique is a technique for changing the ratio of uplink resources to downlink resources in accordance with uplink traffic and downlink traffic. This traffic adaptation technique is also referred to as dynamic TDD.
- Non-Patent Document 1 a method using a flexible subframe is presented as a method for realizing traffic adaptation.
- the base station apparatus can receive an uplink signal or transmit a downlink signal in a flexible subframe.
- the terminal apparatus regards the flexible subframe as a downlink subframe unless the base station apparatus is instructed to transmit an uplink signal in the flexible subframe.
- Non-Patent Document 1 determines the HARQ (Hybrid Automatic Repeat Repeat) timing for PDSCH (Physical Downlink Shared Channel) based on the newly introduced UL-DL configuration (uplink-downlink configuration), and the first UL-DL configuration Is described to determine HARQ timing for PUSCH (Physical Uplink Shared Channel).
- HARQ Hybrid Automatic Repeat Repeat
- Non-Patent Document 2 (a) UL / DL Reference Configuration is introduced. (B) Some subframes are either uplink or downlink depending on dynamic grant / assignment from the scheduler. It is described that it can be scheduled.
- the present invention has been made in view of the above points, and an object of the present invention is to provide a terminal device, a base station device, an integrated circuit, and a communication device that can efficiently execute processing related to transmission power. It aims to provide a method.
- the present invention takes the following measures. That is, the terminal apparatus of the present invention is a terminal apparatus that communicates with the base station apparatus, and is based on the TPC command for PUCCH included in the first DCI format received in subframe n-K PUCCH , in subframe n.
- determining the value of the first parameter used to adjust the transmission power for transmission of the PUCCH Determining a value of a second parameter used to adjust transmission power for PUSCH transmission in subframe m, identifying a value of the K PUCCH based on a first UL-DL configuration;
- the value of the K PUSCH is specified based on the UL-DL setting of the first UL-DL setting.
- the value of the first parameter for subframe i not designated as an uplink subframe by is set to the value of the first parameter for subframe i-1, and uplink is set according to the second UL-DL setting.
- a transmission power control unit that sets the value of the second parameter for subframe k not designated as a link subframe to the value of the second parameter for subframe k ⁇ 1.
- the terminal device of the present invention is a terminal device that communicates with the base station device, and includes a setting unit that sets the first UL-DL setting and the second UL-DL setting, and a DCI format 3 or
- a setting unit that sets the first UL-DL setting and the second UL-DL setting
- the DCI received in the subframe n-K PUCCH Based on the TPC command included in the format 3 or the DCI format 3A, a value of a first parameter used to adjust transmission power for transmission of the PUCCH in the subframe n is determined, and the DCI format 3 or Added to the DCI format 3A
- the CRC parity bit is scrambled by TPC-PUSCH-RNTI
- the PUSCH in subframe m is determined based on the TPC command included in DCI format 3 or DCI format 3A received in subframe m-K PUSCH .
- Determining a value of a second parameter used to adjust transmit power for transmission identifying a value of the K PUCCH based on the first UL-DL configuration, and determining the second UL-DL
- the value of the K PUSCH is specified based on the setting, and the value of the first parameter for the subframe i not designated as an uplink subframe by the first UL-DL setting is set for the subframe i-1.
- Set the value of the first parameter to the second UL-DL Comprising the value of the second parameter for the sub-frame k which is not designated as an uplink subframe by the constant, a transmission power control unit which sets the value of the second parameter for the sub-frame k-1, a.
- the transmission power control unit determines the value of the K PUCCH based on the second UL-DL configuration. And the value of the first parameter for the subframe i not designated as an uplink subframe by the second UL-DL configuration is the value of the first parameter for the subframe i-1. Set to.
- the base station apparatus of the present invention is a base station apparatus that communicates with a terminal apparatus, and is transmitted by a TPC command for the PUCCH included in the first DCI format, which is transmitted in the subframe n-K PUCCH .
- a first parameter used to control transmission power for transmission of PUCCH by the terminal device in subframe n is adjusted and included in a second DCI format transmitted in subframe m-K PUSCH
- a transmission power control unit that adjusts a second parameter used to control transmission power for transmission of PUSCH by the terminal apparatus in subframe m in accordance with a TPC command for PUSCH, the value of the K PUCCH Is specified based on the first UL-DL configuration, and the value of the K PUSCH Is determined based on the second UL-DL configuration, and the value of the first parameter for subframe i not indicated as an uplink subframe by the first UL-DL configuration is subframe i-1 Is set to the value of the first parameter for subframe k not indicated as an uplink subframe by the second UL-DL configuration, and the value of the second parameter for subframe k-1 is Set to the value of the second parameter.
- the base station apparatus of the present invention is a base station apparatus that communicates with a terminal apparatus, and sets a first UL-DL setting and a second UL-DL setting via a higher layer signal.
- a setting unit for transmitting, a transmitting unit for transmitting DCI format 3 or DCI format 3A, and the DCI format 3 to which a CRC parity bit scrambled by TPC-PUCCH-RNTI transmitted in subframe n-K PUCCH is added.
- the first parameter used to control transmission power for transmission of PUCCH by the terminal device in subframe n is adjusted by a TPC command included in the DCI format 3A, and the subframe m-K PUSCH is used.
- the value of the first parameter for subframe i identified and not indicated as an uplink subframe by the first UL-DL configuration is set to the value of the first parameter for subframe i-1. Indicated as an uplink subframe by the second UL-DL configuration.
- the value of the second parameter for the sub-frame k that not is set to the value of the second parameter for the sub-frame k-1.
- the value of the K PUCCH is specified based on the second UL-DL configuration
- the value of the first parameter for the subframe i not designated as an uplink subframe by the UL-DL setting of 2 is set to the value of the first parameter for the subframe i-1.
- the radio communication method of the present invention is a radio communication method used in a terminal device communicating with the base station apparatus, for PUCCH included in the first DCI format received in subframe n-K PUCCH
- the value of the first parameter used to adjust the transmission power for transmission of PUCCH in subframe n is determined
- the second DCI format received in subframe m-K PUSCH is determined.
- determine a value of a second parameter used to adjust transmission power for PUSCH transmission in subframe m and based on a first UL-DL configuration
- the value of K PUCCH is specified
- the value of K PUSCH is specified based on the second UL-DL setting.
- the wireless communication method of the present invention is a wireless communication method used for a base station device communicating with a terminal device, and is included in the first DCI format transmitted in subframe n-K PUCCH.
- a TPC command for PUCCH adjusts a first parameter used to control transmission power for transmission of PUCCH by the terminal device in subframe n, and is transmitted in subframe m-K PUSCH .
- a TPC command for the PUSCH included in the DCI format of the second terminal adjusts a second parameter used to control transmission power for PUSCH transmission by the terminal apparatus in subframe m, and the value of the K PUCCH is 1 specified based on the UL-DL setting, and the value of the K PUSCH Is determined based on the second UL-DL configuration, and the value of the first parameter for subframe i not indicated as an uplink subframe by the first UL-DL configuration is subframe i-1 Is set to the value of the first parameter for subframe k not indicated as an uplink subframe by the second UL-DL configuration, and the value of the second parameter for subframe k-1 is Set to the value of the second parameter.
- the integrated circuit of the present invention is an integrated circuit mounted on a terminal device that communicates with a base station device, and is a TPC for the PUCCH included in the first DCI format received in the subframe n-K PUCCH.
- a function of determining a value of a first parameter used to adjust transmission power for transmission of PUCCH in subframe n based on the command, and a second DCI format received in subframe m-K PUSCH A function for determining the value of the second parameter used to adjust the transmission power for PUSCH transmission in subframe m based on the TPC command for the PUSCH included in the subframe m, and the first UL-DL setting.
- a function of specifying the value of the K PUCCH based, the K P, based on the second UL-DL Configuration The function of specifying the value of USCH, the value of the first parameter for subframe i not designated as an uplink subframe by the first UL-DL configuration, and the value of the first parameter for subframe i-1 A function for setting a parameter value, and the second parameter value for subframe k not designated as an uplink subframe by the second UL-DL configuration, A function of setting the parameter value to the terminal device.
- An integrated circuit according to the present invention is an integrated circuit mounted on a base station device communicating with a terminal device, and is included in the first DCI format transmitted in a subframe n-K PUCCH.
- the K PUCCH value Are identified based on the first UL-DL set
- the value of the K PUSCH is identified on the basis of the second UL-DL configuration is not designated as an uplink subframe by the first UL-DL Configuration
- the value of the first parameter for subframe i is set to the value of the first parameter for subframe i-1, and is not designated as an uplink subframe by the second UL-DL configuration.
- the value of the second parameter for k is set to the value of the second parameter for subframe k-1.
- the terminal device can efficiently execute processing related to transmission power.
- FIG. 4 is a diagram illustrating a correspondence between a subframe nk in which a PDSCH is arranged in this embodiment and a subframe n in which a HARQ-ACK corresponding to the PDSCH is transmitted. It is a figure which shows the value of KPUSCH in this embodiment. It is a flowchart which shows an example of the transmission power control method using the DCI format 3 / 3A in this embodiment. It is a schematic block diagram which shows the structure of the terminal device 1 of this embodiment. It is a schematic block diagram which shows the structure of the base station apparatus 3 of this embodiment.
- a plurality of cells are set in the terminal device.
- a technique in which a terminal device communicates via a plurality of cells is referred to as cell aggregation or carrier aggregation.
- the present invention may be applied to each of a plurality of cells set for a terminal device. Further, the present invention may be applied to some of the plurality of set cells.
- a cell set in the terminal device is also referred to as a serving cell.
- the set plurality of serving cells include one primary cell and one or more secondary cells.
- the primary cell is a serving cell in which an initial connection establishment (initial connection establishment) procedure has been performed, a serving cell that has initiated a connection re-establishment procedure, or a cell designated as a primary cell in a handover procedure.
- the secondary cell may be set at the time when the RRC connection is established or later.
- the TDD (Time Division Duplex) method is applied to the wireless communication system of the present embodiment.
- the TDD scheme may be applied to all of a plurality of cells.
- cells to which the TDD scheme is applied and cells to which an FDD (FrequencyequDivisionplexDuplex) scheme is applied may be aggregated.
- the present invention can be applied to some cells.
- FIG. 1 is a conceptual diagram of the wireless communication system of the present embodiment.
- the radio communication system includes terminal apparatuses 1A to 1C and a base station apparatus 3.
- the terminal devices 1A to 1C are referred to as the terminal device 1.
- the following uplink physical channels are used in uplink wireless communication from the terminal device 1 to the base station device 3.
- the uplink physical channel is used for transmitting information output from an upper layer.
- -PUCCH Physical Uplink Control Channel
- PUSCH Physical Uplink Shared Channel
- PRACH Physical Random Access Channel
- Uplink Control Information is a physical channel used for transmitting uplink control information (Uplink Control Information: UCI).
- Uplink control information includes downlink channel state information (Channel State Information: CSI), scheduling request (Scheduling Request: SR) indicating a PUSCH resource request, downlink data (Transport block, Downlink-Shared Channel, DL-SCH).
- ACK acknowledgenowledgement
- NACK negative-acknowledgement
- ACK / NACK is also referred to as HARQ-ACK, HARQ feedback, or response information.
- the PUSCH is a physical channel used to transmit uplink data (Uplink-Shared Channel: UL-SCH).
- the PUSCH may also be used to transmit HARQ-ACK and / or channel state information along with uplink data. Also, the PUSCH may be used to transmit only channel state information or only HARQ-ACK and channel state information.
- PRACH is a physical channel used to transmit a random access preamble.
- the PRACH is used to indicate an initial connection establishment (initial connection establishment) procedure, a handover procedure, a connection re-establishment (connection re-establishment) procedure, synchronization for uplink transmission (timing adjustment), and a request for PUSCH resources.
- uplink physical signals are used in uplink wireless communication.
- the uplink physical signal is not used for transmitting information output from the upper layer, but is used by the physical layer.
- UL RS Uplink Reference Signal
- DMRS Demodulation Reference Signal
- SRS Sounding Reference Signal
- DMRS is related to transmission of PUSCH or PUCCH.
- DMRS is time-multiplexed with PUSCH or PUCCH.
- the base station apparatus 3 uses DMRS to perform propagation channel correction for PUSCH or PUCCH.
- transmitting both PUSCH and DMRS is simply referred to as transmitting PUSCH.
- transmitting both PUCCH and DMRS is simply referred to as transmitting PUCCH.
- the base station apparatus 3 uses SRS to measure the uplink channel state.
- the terminal device 1 transmits the first SRS in the first resource set by the upper layer. Furthermore, when the terminal device 1 receives information indicating that the transmission of the SRS is requested via the PDCCH, the terminal device 1 transmits the second SRS only once in the second resource set by the higher layer.
- the first SRS is also referred to as a periodic SRS or a type 0 triggered SRS.
- the second SRS is also referred to as an aperiodic SRS or a type 1 triggered SRS. Transmission of aperiodic SRS is scheduled by information indicating that transmission of SRS is requested.
- the following downlink physical channels are used in downlink wireless communication from the base station apparatus 3 to the terminal apparatus 1.
- the downlink physical channel is used for transmitting information output from an upper layer.
- PBCH Physical Broadcast Channel
- PCFICH Physical Control Format Indicator Channel
- PHICH Physical Hybrid automatic repeat request Indicator Channel
- PDCCH Physical Downlink Control Channel
- EPDCCH Enhanced Physical Downlink Control Channel
- PDSCH Physical Downlink Shared Channel
- PMCH Physical Multicast Channel
- the PBCH is used to broadcast a master information block (Master Information Block: MIB, Broadcast Channel: BCH) commonly used in the terminal device 1.
- MIB Master Information Block
- BCH Broadcast Channel
- PCFICH is used for transmitting information indicating a region (OFDM symbol) used for transmission of PDCCH.
- the PHICH is used to transmit an HARQ indicator (HARQ feedback, response information) indicating ACK (ACKnowledgement) or NACK (Negative ACKnowledgement) for uplink data (Uplink Shared Channel: UL-SCH) received by the base station apparatus 3. It is done.
- HARQ indicator HARQ feedback, response information
- ACK acknowledgement
- NACK Negative ACKnowledgement
- the PDCCH and EPDCCH are used to transmit downlink control information (Downlink Control Information: DCI).
- DCI Downlink Control Information
- the downlink control information is also referred to as a DCI format.
- the downlink control information includes DCI format 3, DCI format 3A, downlink grant (downlink grant), and uplink grant (uplink grant).
- the downlink grant is also referred to as downlink assignment (downlink allocation) or downlink assignment (downlink allocation).
- DCI format 3 and / or DCI format 3A is also referred to as DCI format 3 / 3A.
- the DCI format 3 / 3A is used for transmission of a plurality of TPC (Transmission Power Control) commands for the PUSCH of the primary cell or a plurality of TPC commands for the PUCCH of the primary cell.
- TPC command included in the DCI format 3 has 2 bits.
- One TPC command included in the DCI format 3A is 1 bit.
- the base station apparatus 3 includes information indicating a value of TPC-PUSCH-RNTI, information indicating a parameter tpc-index corresponding to TPC-PUSCH-RNTI, information indicating a value of TPC-PUCCH-RNTI, and TPC-PUCCH- An upper layer signal including information indicating the parameter tpc-index corresponding to the RNTI is transmitted to the terminal device 1.
- the base station apparatus 3 transmits to the terminal apparatus 1 an upper layer signal including information instructing monitoring of DCI format 3 or DCI format 3A.
- a CRC (Cyclic Redundancy Check) parity bit is added to the DCI format.
- the CRC parity bit added to the DCI format 3 / 3A is scrambled with TPC-PUSCH-RNTI or TPC-PUSCH-RNTI.
- the terminal device 1 determines that the DCI format 3 / 3A includes a TPC command for the PUSCH.
- the terminal device 1 determines that the DCI format 3 / 3A includes a TPC command for the PUCCH.
- DCI format 3 / 3A to which CRC parity bits scrambled by TPC-PUSCH-RNTI are added is also referred to as DCI format 3 / 3A for PUSCH.
- DCI format 3 / 3A to which CRC parity bits scrambled by TPC-PUCCH-RNTI are added is also referred to as DCI format 3 / 3A for PUCCH.
- the terminal device 1 determines the index of the TPC command for the terminal device 1 based on the parameter tpc-index given by the upper layer.
- the base station apparatus 3 may transmit the DCI format 3 / 3A using CSS (Common Search Space) of the primary cell.
- the terminal device 1 may monitor the DCI format 3 / 3A with the CSS of the primary cell.
- the terminal device 1 may attempt to decode the PDCCH / EPDCCH for the DCI format 3 / 3A using the CSS of the primary cell.
- the downlink grant is used for scheduling a single PDSCH within a single cell.
- the downlink grant is used for scheduling the PDSCH in the same subframe as the subframe in which the downlink grant is transmitted.
- the downlink grant includes a TPC command for PUCCH.
- the uplink grant is used for scheduling a single PUSCH within a single cell.
- the uplink grant is used for scheduling a single PUSCH in a subframe that is four or more after the subframe in which the uplink grant is transmitted.
- the uplink grant includes a TPC command for PUSCH.
- the CRC parity bits added to the downlink grant or uplink grant are scrambled by C-RNTI (Cell-Radio Network Temporary Identifier) or SPS C-RNTI (Semi Persistent Scheduling Cell-Radio Network Temporary Identifier).
- C-RNTI Cell-Radio Network Temporary Identifier
- SPS C-RNTI Semi Persistent Scheduling Cell-Radio Network Temporary Identifier
- the C-RNTI is used to control PDSCH or PUSCH in a single subframe.
- the SPS C-RNTI is used to periodically allocate PDSCH or PUSCH resources.
- PDSCH is used to transmit downlink data (Downlink Shared Channel: DL-SCH).
- PMCH is used to transmit multicast data (Multicast Channel: MCH).
- the following downlink physical signals are used in downlink wireless communication.
- the downlink physical signal is not used for transmitting information output from the upper layer, but is used by the physical layer.
- SS Synchronization signal
- DL RS Downlink Reference Signal
- the synchronization signal is used for the terminal device 1 to synchronize the downlink frequency domain and time domain.
- the synchronization signal is arranged in subframes 0, 1, 5, and 6 in the radio frame.
- the synchronization signal is arranged in subframes 0 and 5 in the radio frame.
- the downlink reference signal is used for the terminal device 1 to correct the propagation path of the downlink physical channel.
- the downlink reference signal is used for the terminal device 1 to calculate downlink channel state information.
- the following five types of downlink reference signals are used.
- -CRS Cell-specific Reference Signal
- URS UE-specific Reference Signal
- PDSCH PDSCH
- DMRS Demodulation Reference Signal
- EPDCCH Non-Zero Power Chanel State Information-Reference Signal
- ZP CSI-RS Zero Power Chanel State Information-Reference Signal
- MBSFN RS Multimedia Broadcast and Multicast Service over Single Frequency Network Reference signal
- PRS Positioning Reference Signal
- CRS is transmitted in the entire bandwidth of the subframe.
- CRS is used to demodulate PBCH / PDCCH / PHICH / PCFICH / PDSCH.
- the CRS may be used for the terminal device 1 to calculate downlink channel state information.
- PBCH / PDCCH / PHICH / PCFICH is transmitted through an antenna port used for CRS transmission.
- URS related to PDSCH is transmitted in a subframe and a band used for transmission of PDSCH related to URS.
- URS is used to demodulate the PDSCH with which the URS is associated.
- the PDSCH is transmitted through an antenna port used for CRS or URS transmission.
- the DCI format 1A is used for scheduling of PDSCH transmitted through an antenna port used for CRS transmission.
- the DCI format 2D is used for scheduling of the PDSCH transmitted through the antenna port used for URS transmission.
- DMRS related to EPDCCH is transmitted in subframes and bands used for transmission of EPDCCH related to DMRS.
- DMRS is used to demodulate the EPDCCH with which DMRS is associated.
- the EPDCCH is transmitted through an antenna port used for DMRS transmission.
- NZP CSI-RS is transmitted in the set subframe.
- the resource for transmitting the NZP CSI-RS is set by the base station apparatus.
- the NZP CSI-RS is used by the terminal device 1 to calculate downlink channel state information.
- the terminal device 1 performs signal measurement (channel measurement) using NZP CSI-RS.
- ZP CSI-RS resources are set by the base station device 3.
- the base station apparatus 3 transmits ZP CSI-RS with zero output. That is, the base station apparatus 3 does not transmit ZP CSI-RS.
- the base station apparatus 3 does not transmit PDSCH and EPDCCH in the resource set by ZP CSI-RS.
- the terminal device 1 can measure interference in a resource supported by NZP CSI-RS in a certain cell.
- the MBSFN RS is transmitted in the entire band of the subframe used for PMCH transmission.
- the MBSFN RS is used for PMCH demodulation.
- PMCH is transmitted through an antenna port used for transmission of MBSFN RS.
- PRS is used by a terminal device to measure the geographical location of the device itself.
- the downlink physical channel and the downlink physical signal are collectively referred to as a downlink signal.
- the uplink physical channel and the uplink physical signal are collectively referred to as an uplink signal.
- the downlink physical channel and the uplink physical channel are collectively referred to as a physical channel.
- the downlink physical signal and the uplink physical signal are collectively referred to as a physical signal.
- BCH, MCH, UL-SCH and DL-SCH are transport channels.
- a channel used in a medium access control (Medium Access Control: MAC) layer is referred to as a transport channel.
- a transport channel unit used in the MAC layer is also referred to as a transport block (transport block: TB) or a MAC PDU (Protocol Data Unit).
- HARQ HybridbrAutomatic Repeat reQuest
- the transport block is a unit of data that the MAC layer delivers to the physical layer.
- the transport block is mapped to a code word, and an encoding process is performed for each code word.
- FIG. 2 is a diagram illustrating a schematic configuration of a radio frame according to the present embodiment.
- Each radio frame is 10 ms long.
- the horizontal axis is a time axis.
- Each radio frame is composed of two half frames.
- Each half frame is 5 ms long.
- Each half frame is composed of 5 subframes.
- Each subframe is 1 ms long and is defined by two consecutive slots.
- Each of the slots is 0.5 ms long.
- the i-th subframe in the radio frame is composed of a (2 ⁇ i) th slot and a (2 ⁇ i + 1) th slot. That is, 10 subframes can be used in each 10 ms interval.
- subframes In this embodiment, the following three types of subframes are defined. -Downlink subframe (first subframe) -Uplink subframe (second subframe) Special subframe (third subframe)
- the downlink subframe is a subframe reserved for downlink transmission.
- the uplink subframe is a subframe reserved for uplink transmission.
- the special subframe is composed of three fields. The three fields are DwPTS (Downlink Pilot Time Slot), GP (Guard Period), and UpPTS (Uplink Pilot Time Slot). The total length of DwPTS, GP, and UpPTS is 1 ms.
- DwPTS is a field reserved for downlink transmission.
- UpPTS is a field reserved for uplink transmission.
- GP is a field in which downlink transmission and uplink transmission are not performed. Note that the special subframe may be composed of only DwPTS and GP, or may be composed of only GP and UpPTS.
- a single radio frame is composed of at least a downlink subframe, an uplink subframe, and a special subframe.
- FIG. 3 is a diagram showing the configuration of the slot according to the present embodiment.
- normal CP normal Cyclic Prefix
- An extended CP extendedexCyclic Prefix
- the physical signal or physical channel transmitted in each of the slots is represented by a resource grid.
- the horizontal axis is a time axis
- the vertical axis is a frequency axis.
- the resource grid is defined by a plurality of subcarriers and a plurality of OFDM symbols.
- the resource grid is defined by a plurality of subcarriers and a plurality of SC-FDMA symbols.
- the number of subcarriers constituting one slot depends on the cell bandwidth.
- the number of OFDM symbols or SC-FDMA symbols constituting one slot is seven.
- Each element in the resource grid is referred to as a resource element.
- the resource element is identified using a subcarrier number and an OFDM symbol or SC-FDMA symbol number.
- the resource block is used to express mapping of a certain physical channel (such as PDSCH or PUSCH) to a resource element.
- resource blocks virtual resource blocks and physical resource blocks are defined.
- a physical channel is first mapped to a virtual resource block. Thereafter, the virtual resource block is mapped to the physical resource block.
- One physical resource block is defined by 7 consecutive OFDM symbols or SC-FDMA symbols in the time domain and 12 consecutive subcarriers in the frequency domain. Therefore, one physical resource block is composed of (7 ⁇ 12) resource elements.
- One physical resource block corresponds to one slot in the time domain and corresponds to 180 kHz in the frequency domain. Physical resource blocks are numbered from 0 in the frequency domain.
- FIG. 4 is a diagram illustrating an example of the arrangement of physical channels and physical signals in the downlink subframe according to the present embodiment.
- the horizontal axis is a time axis
- the vertical axis is a frequency axis.
- the base station apparatus 3 may transmit a downlink physical channel (PBCH, PCFICH, PHICH, PDCCH, EPDCCH, PDSCH) and a downlink physical signal (synchronization signal, downlink reference signal) in the downlink subframe.
- PBCH is transmitted only in subframe 0 in the radio frame.
- the downlink reference signal is arranged in resource elements distributed in the frequency domain and the time domain. For simplicity of explanation, the downlink reference signal is not shown in FIG.
- a plurality of PDCCHs may be frequency and time multiplexed.
- a plurality of EPDCCHs may be frequency, time, and space multiplexed.
- a plurality of PDSCHs may be frequency and space multiplexed.
- the PDCCH and PDSCH or EPDCCH may be time multiplexed.
- PDSCH and EPDCCH may be frequency multiplexed.
- FIG. 5 is a diagram illustrating an example of the arrangement of physical channels and physical signals in the uplink subframe according to the present embodiment.
- the horizontal axis is the time axis
- the vertical axis is the frequency axis.
- the terminal device 1 may transmit an uplink physical channel (PUCCH, PUSCH, PRACH) and an uplink physical signal (DMRS, SRS) in the uplink subframe.
- PUCCH region a plurality of PUCCHs are frequency, time, and code multiplexed.
- a plurality of PUSCHs may be frequency and spatially multiplexed.
- PUCCH and PUSCH may be frequency multiplexed.
- the PRACH may be arranged over a single subframe or two subframes. A plurality of PRACHs may be code-multiplexed.
- SRS is transmitted using the last SC-FDMA symbol in the uplink subframe. That is, the SRS is arranged in the last SC-FDMA symbol in the uplink subframe.
- the terminal device 1 cannot simultaneously transmit SRS and PUCCH / PUSCH / PRACH in a single SC-FDMA symbol of a single cell.
- the terminal apparatus 1 transmits PUSCH and / or PUCCH using an SC-FDMA symbol excluding the last SC-FDMA symbol in the uplink subframe,
- the SRS can be transmitted using the last SC-FDMA symbol in the uplink subframe. That is, the terminal device 1 can transmit both SRS and PUSCH / PUCCH in a single uplink subframe of a single cell.
- DMRS is time-multiplexed with PUCCH or PUSCH. For simplicity of explanation, DMRS is not shown in FIG.
- FIG. 6 is a diagram showing an example of the arrangement of physical channels and physical signals in the special subframe of the present embodiment.
- the horizontal axis is the time axis
- the vertical axis is the frequency axis.
- DwPTS is composed of the first to tenth SC-FDMA symbols in the special subframe
- GP is composed of the eleventh and twelfth SC-FDMA symbols in the special subframe
- UpPTS is the special subframe. It consists of the 13th and 14th SC-FDMA symbols in the frame.
- the base station apparatus 3 may transmit the PCFICH, PHICH, PDCCH, EPDCCH, PDSCH, synchronization signal, and downlink reference signal in the DwPTS of the special subframe.
- Base station apparatus 3 does not transmit PBCH in DwPTS of the special subframe.
- the terminal device 1 may transmit PRACH and SRS in the UpPTS of the special subframe. That is, the terminal device 1 does not transmit PUCCH, PUSCH, and DMRS in the UpPTS of the special subframe.
- the first UL reference UL-DL configuration uplinkupreference uplink-downlink configuration
- the first DL reference UL-DL configuration downlink reference uplink-downlink configuration
- the second UL reference UL-DL configuration the second DL reference UL-DL setting
- transmission direction UL-DL setting transmission direction uplink-downlink configuration
- the first UL reference UL-DL setting, the first DL reference UL-DL setting, the second UL reference UL-DL setting, the second DL reference UL-DL setting, and the transmission direction UL-DL setting are: Defined by UL-DL configuration (uplink-downlink configuration, UL-DL configuration).
- the UL-DL setting is a setting related to a subframe pattern in a radio frame.
- the UL-DL setting indicates whether each subframe in the radio frame is a downlink subframe, an uplink subframe, or a special subframe.
- the first UL reference UL-DL setting, the second UL reference UL-DL setting, the first DL reference UL-DL setting, the second DL reference UL-DL setting, and the transmission direction UL-DL setting Is defined by a pattern of a downlink subframe, an uplink subframe, and a special subframe in a radio frame.
- the patterns of the downlink subframe, the uplink subframe, and the special subframe are any of the subframes # 0 to # 9 that are a downlink subframe, an uplink subframe, and a special subframe.
- it is expressed by an arbitrary combination having a length of 10 of D, U, and S (representing a downlink subframe, an uplink subframe, and a special subframe, respectively). More preferably, the top (that is, subframe # 0) is D and the second (that is, subframe # 1) is S.
- FIG. 7 is a table showing an example of UL-DL settings in the present embodiment.
- D indicates a downlink subframe
- U indicates an uplink subframe
- S indicates a special subframe.
- the setting of the UL-DL setting i as the first or second UL reference UL-DL setting is referred to as the setting of the first or second UL reference UL-DL setting i.
- Setting the UL-DL setting i as the first or second DL reference UL-DL setting is referred to as setting the first or second DL reference UL-DL setting i.
- Setting the UL-DL setting i as the transmission direction UL-DL setting is referred to as setting the transmission direction UL-DL setting i.
- the base station apparatus 3 sets the first UL reference UL-DL setting, the first DL reference UL-DL setting, and the transmission direction UL-DL setting.
- the base station apparatus 3 includes first information (TDD-Config) indicating a first UL reference UL-DL setting, second information indicating a first DL reference UL-DL setting, and a transmission direction UL-DL.
- Third information indicating the setting is set to at least one of MIB, system information block type 1 message, system information message, RRC message, MAC CE (Control Element), and physical layer control information (for example, DCI format). You may include and transmit.
- the base station apparatus 3 sends the first information, the second information, and the third information to the MIB, the system information block type 1 message, the system information message, the RRC message, the MAC CE ( Control Element) and physical layer control information (for example, DCI format).
- a first UL reference UL-DL configuration, a second UL reference UL-DL configuration, a first DL reference UL-DL configuration, a second DL reference UL-DL configuration, and A transmission direction UL-DL configuration may be defined.
- the base station apparatus 3 transmits the first information, the second information, and the third information for each of the serving cells to the terminal apparatus 1 in which a plurality of serving cells are set.
- the first information, the second information, and the third information may be defined for each serving cell.
- the terminal device 1 in which a plurality of serving cells are set has the first UL reference UL-DL configuration, the second One DL reference UL-DL setting and a transmission direction DL-UL setting may be set.
- the first information for the primary cell is preferably included in the system information block type 1 message or the RRC message.
- the first information for the secondary cell is preferably included in the RRC message.
- the second information for the primary cell is preferably included in a system information block type 1 message, a system information message, or an RRC message.
- the second information for the secondary cell is preferably included in the RRC message.
- the third information is preferably included in physical layer control information (eg, DCI format).
- the system information block type 1 message includes information indicating the configuration of special subframes (lengths of DwPTS, GP, and UpPTS).
- the system information block type 1 message is cell-specific information.
- System information message is transmitted via PDSCH.
- the system information message is cell-specific information.
- the system information message includes a system information block X other than the system information block type 1.
- the RRC message is transmitted via PDSCH.
- the RRC message is information / signal processed in the RRC layer.
- the RRC message may be common to a plurality of terminal devices 1 in the cell, or may be dedicated to a specific terminal device 1.
- the MAC CE is transmitted via PDSCH.
- the MAC CE is information / signal processed in the MAC layer.
- FIG. 8 is a flowchart showing a setting method of the first UL reference UL-DL setting and the first DL reference UL-DL setting in the present embodiment.
- the terminal device 1 executes the setting method in FIG. 8 for each of the plurality of serving cells.
- the terminal device 1 sets the first UL reference UL-DL setting for a certain serving cell based on the first information (S800).
- the terminal device 1 determines whether the second information for the certain serving cell is received (S802).
- the terminal device 1 sets the first DL reference UL-DL setting for the certain serving cell based on the second information for the certain serving cell. (S806).
- the terminal device 1 performs the first DL reference UL based on the first information for the certain serving cell.
- -Set the DL setting (S804).
- a serving cell in which the first UL reference UL-DL setting and the first DL reference UL-DL setting are set based on the first information is also referred to as a serving cell in which dynamic TDD is not set.
- a serving cell in which the first DL reference UL-DL setting is set based on the second information is also referred to as a serving cell in which dynamic TDD is set.
- the first UL reference UL-DL setting and the first DL reference UL-DL setting may not be defined.
- the terminal device 1 may set one UL-DL configuration for the certain serving cell based on the first information for the certain serving cell. .
- the terminal device 1 receives the second information, and determines a subframe in which an uplink signal can be transmitted based on the second information. Next, the terminal device 1 monitors the third information. When the terminal device 1 receives the third information, the terminal device 1 determines a subframe in which an uplink signal can be transmitted based on the third information.
- the base station device 3 transmits the third information to the terminal device 1 using PDCCH / EPDCCH.
- the third information controls the operation of dynamic TDD within the coverage of the base station apparatus 3 (cell).
- the third information may be transmitted / received in CSS (Common Search Space) or USS (UE-specific Search Space).
- the CSS is an area where a plurality of terminal devices 1 commonly monitor PDCCH / EPDCCH.
- the USS is an area defined based on at least C-RNTI.
- the terminal device 1 tries to decode the received signal, and determines whether or not the PDCCH / EPDCCH including the third information is detected.
- the terminal apparatus 1 detects the PDCCH / EPDCCH including the third information
- the terminal apparatus 1 determines a subframe in which an uplink signal can be transmitted based on the detected third information.
- the terminal apparatus 1 may maintain the determination so far regarding a subframe in which an uplink signal can be transmitted.
- the terminal device 1 and the base station device 3 have the second UL reference UL- Set DL settings.
- the terminal device 1 and the base station device 3 have the second UL reference UL except when a plurality of serving cells are set for the terminal device 1 and the first UL reference UL-DL setting for at least two serving cells is different. -DL setting may not be set.
- the first UL reference UL-DL settings for at least two serving cells are different, the first UL reference UL-DL settings for all serving cells are the same.
- the terminal device 1 and the base station device 3 do not have to set the second UL reference UL-DL setting.
- FIG. 9 is a flowchart showing a setting method of the second UL reference UL-DL setting in the present embodiment.
- one primary cell and one secondary cell are set for the terminal device 1.
- the terminal device 1 executes the setting method in FIG. 9 for each of the primary cell and the secondary cell.
- the terminal device 1 determines whether the first UL reference UL-DL setting for the primary cell is different from the first UL reference UL-DL setting for the secondary cell (S900). When the first UL reference UL-DL setting for the primary cell and the first UL reference UL-DL setting for the secondary cell are the same, the terminal device 1 does not set the second UL reference UL-DL setting, The setting process of the second UL reference UL-DL setting is terminated.
- the terminal device 1 determines whether the serving cell is a primary cell or a secondary cell, and In other serving cells, it is determined whether PDCCH / EPDCCH with CIF (Carrier Indicator Field) corresponding to the serving cell is set to be monitored (S902).
- PDCCH / EPDCCH with CIF Carrier Indicator Field
- the terminal apparatus 1 When the serving cell is a secondary cell and the terminal apparatus 1 is configured to monitor the PDCCH / EPDCCH with CIF corresponding to the serving cell (secondary cell) in the other serving cell (primary cell), the other serving cell ( A second UL for the serving cell (secondary cell) based on a pair formed by a first UL reference UL-DL configuration for the primary cell) and a first UL reference UL-DL configuration for the serving cell (secondary cell)
- the reference UL-DL setting is set (S904).
- the terminal device 1 sets the second UL reference UL-DL setting for the serving cell (secondary cell) based on the table of FIG.
- FIG. 10 shows a pair formed by the first UL reference UL-DL configuration for another serving cell (primary cell) and the first UL reference UL-DL configuration for the serving cell (secondary cell) in this embodiment, and
- FIG. 10 is a diagram illustrating a correspondence of the second UL reference UL-DL setting to the secondary cell.
- the primary cell UL-DL setting refers to the first UL reference UL-DL setting for another serving cell (primary cell).
- the secondary cell UL-DL configuration refers to the first UL reference UL-DL configuration for the serving cell (secondary cell).
- the first UL reference UL-DL setting 0 is set for another serving cell (primary cell) and the first UL reference UL-DL setting 2 is set for the serving cell (secondary cell) Sets the second UL reference UL-DL setting 1 for the secondary cell.
- the serving cell is a primary cell, or the serving cell is a secondary cell, and the terminal device 1 is set to monitor the PDCCH / EPDCCH with the CIF corresponding to the serving cell (secondary cell) in another serving cell (primary cell). If not, the first UL reference UL-DL setting for the serving cell is set to the second UL reference UL-DL setting for the serving cell (S906).
- the base station apparatus 3 sets the second UL reference UL-DL setting based on the setting method of FIG.
- Monitoring PDCCH / EPDCCH with CIF means trying to decode PDCCH or EPDCCH according to the DCI format including CIF.
- CIF is a field to which a carrier indicator is mapped. The value of the carrier indicator indicates the serving cell corresponding to the DCI format to which the carrier indicator relates.
- the terminal device 1 configured to monitor the PDCCH / EPDCCH with CIF corresponding to the serving cell monitors the PDCCH / EPDCCH with CIF in the other serving cell.
- the terminal apparatus 1 configured to monitor the PDCCH / EPDCCH corresponding to the serving cell and having the CIF receives the third information for the serving cell via the PDCCH / EPDCCH in the other serving cell. It is preferable to do.
- the terminal device 1 that is not set to monitor the PDCCH / EPDCCH with the CIF corresponding to the serving cell monitors the PDCCH / EPDCCH with or without the CIF in the serving cell.
- the terminal device 1 corresponding to the serving cell and not configured to monitor the PDCCH / EPDCCH with the CIF receives third information for the serving cell via the PDCCH / EPDCCH in the serving cell. Is preferred.
- the PDCCH / EPDCCH for the primary cell is transmitted in the primary cell. It is preferable that the 3rd information with respect to a primary cell is transmitted via PDCCH / EPDCCH of a primary cell.
- the base station apparatus 3 transmits to the terminal apparatus 1 a parameter (cif-Presence-r10) indicating whether CIF is included in the DCI format transmitted in the primary cell.
- the base station device 3 transmits a parameter (CrossCarrierSchedulingConfig-r10) related to cross carrier scheduling to the terminal device 1 for each of the secondary cells.
- a parameter (CrossCarrierSchedulingConfig-r10) related to cross carrier scheduling to the terminal device 1 for each of the secondary cells.
- the parameter (CrossCarrierSchedulingConfig-r10) includes a parameter (schedulingCellInfo-r10) indicating whether the PDCCH / EPDCCH corresponding to the associated secondary cell is transmitted in the secondary cell or another serving cell.
- the parameter (schedulingCellInfo-r10) indicates that the PDCCH / EPDCCH corresponding to the related secondary cell is transmitted in the secondary cell
- the parameter (schedulingCellInfo-r10) is the DCI format transmitted in the secondary cell. Includes a parameter (cif-Presence-r10) indicating whether or not CIF is included.
- the parameter (schedulingCellInfo-r10) indicates that the PDCCH / EPDCCH corresponding to the associated secondary cell is transmitted in another serving cell
- the parameter (schedulingCellInfo-r10) is assigned to the downlink link to the associated secondary cell. Includes a parameter (schedulingCellId) indicating which serving cell is transmitted.
- the terminal device 1 and the base station device 3 When a plurality of serving cells are set for the terminal device 1 and the first DL reference UL-DL settings for at least two serving cells are different, the terminal device 1 and the base station device 3 have the second DL reference UL- Set DL settings.
- the terminal device 1 and the base station device 3 use the second DL reference UL except when a plurality of serving cells are set for the terminal device 1 and the first DL reference UL-DL setting for at least two serving cells is different. -DL setting may not be set.
- the first DL reference UL-DL configuration for at least two serving cells is different, the first DL reference UL-DL configuration for all serving cells is the same.
- the terminal device 1 and the base station device 3 do not need to set the second DL reference UL-DL setting.
- FIG. 11 is a flowchart showing a setting method of the second DL reference UL-DL setting in the present embodiment.
- one primary cell and one secondary cell are set for the terminal device 1.
- the terminal device 1 executes the setting method in FIG. 11 for each of the primary cell and the secondary cell.
- the terminal device 1 determines whether the first DL reference UL-DL setting for the primary cell and the first DL reference UL-DL setting for the secondary cell are different (S1100). When the first DL reference UL-DL configuration for the primary cell and the first DL reference UL-DL configuration for the secondary cell are the same, the terminal device 1 does not set the second DL reference UL-DL configuration, The setting process of the second DL reference UL-DL setting is terminated.
- the terminal device 1 determines whether the serving cell is a primary cell or a secondary cell. (S1102).
- the serving cell is a secondary cell
- the pair formed by the first DL reference UL-DL configuration for another serving cell (primary cell) and the first DL reference UL-DL configuration for the serving cell (secondary cell) Based on this, the second UL reference UL-DL setting for the serving cell (secondary cell) is set (S1104).
- the terminal device 1 sets the second DL reference UL-DL setting for the serving cell (secondary cell) based on the table of FIG.
- FIG. 12 shows a pair formed by the first DL reference UL-DL configuration for the primary cell and the first DL reference UL-DL configuration for the secondary cell and the second DL for the secondary cell in this embodiment. It is a figure which shows the response
- the primary cell UL-DL configuration refers to the first DL reference UL-DL configuration for the primary cell.
- the secondary cell UL-DL configuration refers to the first DL reference UL-DL configuration for the secondary cell.
- the second for the secondary cell The DL reference UL-DL configuration is defined in set 1.
- the terminal apparatus 1 is not set to monitor the PDCCH / EPDCCH with the CIF corresponding to the secondary cell, the first DL reference UL-DL setting for the primary cell, and the first for the secondary cell If the pair formed by the DL reference UL-DL setting of the second cell belongs to the set 2 of FIG. 12, the second DL reference UL-DL setting for the secondary cell is defined in the set 2.
- the terminal apparatus 1 is not set to monitor the PDCCH / EPDCCH with the CIF corresponding to the secondary cell, the first DL reference UL-DL setting for the primary cell, and the first for the secondary cell If the pair formed by the DL reference UL-DL setting belongs to the set 3 of FIG. 12, the second DL reference UL-DL setting for the secondary cell is defined in the set 3.
- the terminal device 1 is configured to monitor the PDCCH / EPDCCH corresponding to the secondary cell and accompanied by the CIF in the primary cell, the first DL reference UL-DL setting for the primary cell, and the first for the secondary cell If the pair formed by the DL reference UL-DL configuration belongs to the set 4 of FIG. 12, the second DL reference UL-DL configuration for the secondary cell is defined in the set 4.
- the terminal device 1 is configured to monitor the PDCCH / EPDCCH corresponding to the secondary cell and accompanied by the CIF in the primary cell, the first DL reference UL-DL setting for the primary cell, and the first for the secondary cell If the pair formed by the DL reference UL-DL configuration belongs to the set 5 in FIG. 12, the second DL reference UL-DL configuration for the secondary cell is defined in the set 5.
- the first DL reference UL-DL setting 0 is set for the secondary cell
- the first DL reference UL-DL setting 0 is set for the secondary cell.
- 2 DL reference UL-DL setting 1 is set.
- the first DL reference UL-DL setting for the serving cell is set to the second DL reference UL-DL setting for the serving cell (primary cell) (S1106).
- the base station device 3 sets the second DL reference UL-DL setting based on the setting method of FIG.
- the first UL reference UL-DL configuration is used at least for specifying a subframe in which the uplink transmission is possible or impossible in the serving cell.
- the terminal device 1 does not perform uplink transmission in a subframe instructed as a downlink subframe by the first UL reference UL-DL setting.
- the terminal device 1 does not perform uplink transmission in the DwPTS and GP of the subframe instructed as the special subframe by the first UL reference UL-DL setting.
- the first DL reference UL-DL configuration is used at least in order to identify a subframe in which downlink transmission is possible or impossible in the serving cell.
- the terminal device 1 does not perform downlink transmission in a subframe instructed as an uplink subframe by the first DL reference UL-DL setting.
- the terminal apparatus 1 does not perform downlink transmission in the UpPTS and GP of the subframe indicated as the special subframe by the first DL reference UL-DL setting.
- the terminal device 1 that has set the first DL reference UL-DL setting based on the first information downloads the downlink indicated by the first UL reference UL-DL setting or the first DL reference UL-DL setting. You may perform the measurement (for example, measurement regarding channel state information) using the downlink signal in DwPTS of a link subframe or a special subframe.
- the subframe instructed as an uplink subframe by the first UL reference UL-DL configuration and instructed as the downlink subframe by the first DL reference UL-DL configuration is also referred to as a first flexible subframe.
- the first flexible subframe is a subframe reserved for uplink and downlink transmission.
- the subframe instructed as a special subframe by the first UL reference UL-DL configuration and instructed as the downlink subframe by the first DL reference UL-DL configuration is also referred to as a second flexible subframe.
- the second flexible subframe is a subframe reserved for downlink transmission.
- the second flexible subframe is a subframe reserved for downlink transmission in DwPTS and uplink transmission in UpPTS.
- the transmission direction UL-DL setting will be described in detail below.
- the terminal device 1 and the base station device 3 set the transmission direction UL-DL setting related to the transmission direction (up / down) in the subframe.
- the transmission direction UL-DL setting is used to determine the transmission direction in the subframe.
- the terminal device 1 controls transmission in the first flexible subframe and the second flexible subframe based on the scheduling information (DCI format and / or HARQ-ACK) and the transmission direction UL-DL setting.
- the scheduling information DCI format and / or HARQ-ACK
- the base station device 3 transmits the third information indicating the transmission direction UL-DL setting to the terminal device 1.
- the third information is information indicating a subframe in which uplink transmission is possible.
- the third information is information indicating a subframe in which downlink transmission is possible.
- the third information is information indicating a subframe in which uplink transmission in UpPTS and downlink transmission in DwPTS are possible.
- the transmission direction UL-DL setting is used to specify the transmission direction in subframes indicated as different subframes in the first UL reference UL-DL setting and the first DL reference UL-DL setting. It is done.
- the base station apparatus 3 may perform downlink transmission scheduling in a subframe instructed as a downlink subframe by the transmission direction UL-DL setting.
- the terminal apparatus 1 may perform downlink signal reception processing in a subframe instructed as a downlink subframe by the transmission direction UL-DL setting.
- the base station apparatus 3 may perform uplink transmission scheduling in a subframe indicated as an uplink subframe by the transmission direction UL-DL setting.
- the terminal device 1 may perform uplink signal transmission processing in a subframe instructed as an uplink subframe by the transmission direction UL-DL setting.
- the base station apparatus 3 may perform downlink transmission scheduling in the DwPTS of the subframe instructed as a special subframe by the transmission direction UL-DL setting.
- the terminal device 1 may perform downlink signal reception processing in DwPTS of a subframe instructed as a special subframe by the transmission direction UL-DL setting.
- the base station apparatus 3 may perform SRS transmission scheduling in the UpPTS of the subframe indicated as a special subframe by the transmission direction UL-DL setting.
- the terminal device 1 may perform SRS transmission processing in the UpPTS of the subframe instructed as a special subframe by the transmission direction UL-DL setting.
- the first UL reference UL-DL setting and the second UL reference UL-DL setting are a subframe n in which PDCCH / EPDCCH / PHICH is arranged and a subframe in which PUSCH corresponding to the PDCCH / EPDCCH / PHICH is arranged. Used to specify (select, determine) the correspondence with n + k.
- the first UL reference UL-DL configuration for the primary cell and the first UL reference UL-DL for the secondary cell is the subframe in which the PDCCH / EPDCCH / PHICH is arranged and the PUSCH to which the PDCCH / EPDCCH / PHICH is arranged. It is used to determine the correspondence with the subframe to be performed.
- the corresponding second UL reference UL-DL configuration is used to determine the correspondence between the subframe in which the PDCCH / EPDCCH / PHICH is arranged and the subframe in which the PUSCH to which the PDCCH / EPDCCH / PHICH is arranged It is done.
- FIG. 13 is a diagram illustrating a correspondence between a subframe n in which PDCCH / EPDCCH / PHICH is arranged and a subframe n + k in which PUSCH corresponding to the PDCCH / EPDCCH / PHICH is arranged in the present embodiment.
- the terminal device 1 specifies (selects or determines) the value of k according to the table of FIG.
- the first UL reference UL-DL setting for the primary cell and the first UL for the secondary cell when one primary cell is set, or one primary cell and one secondary cell are set, the first UL reference UL-DL setting for the primary cell and the first UL for the secondary cell If the reference UL-DL configuration is the same, the UL-DL configuration refers to the first UL reference UL-DL configuration.
- the UL-DL The setting refers to the second UL reference UL-DL setting.
- the first UL reference UL-DL setting and the second UL reference UL-DL setting are simply referred to as UL-DL setting.
- FIG. PUSCH transmission corresponding to the uplink grant is performed in subframe n + k specified (selected, determined) based on the table of 13.
- the terminal apparatus 1 When the terminal apparatus 1 detects a PHICH with a NACK for the terminal apparatus 1 corresponding to a serving cell in which UL-DL settings 1 to 6 are set in the subframe n, the table of FIG. PUSCH transmission is performed in the subframe n + k specified (selected and determined) based on this.
- the uplink grant for terminal apparatus 1 includes a 2-bit uplink index (UL index).
- the uplink grant corresponding to the serving cell in which UL-DL settings 1 to 6 are set and the terminal device 1 is the target does not include an uplink index (UL index).
- the terminal device 1 When the MSB (Most Significant Bit) of the uplink index included in the uplink grant corresponding to the serving cell for which the UL-DL setting 0 is set is set to 1 in the subframe n, the terminal device 1 The PUSCH transmission corresponding to the uplink grant is adjusted in the subframe n + k specified (selected and determined) based on the table of FIG.
- the PUSCH transmission corresponding to the PHICH is adjusted in the subframe n + k specified (selected or determined) based on the PHICH.
- the terminal apparatus 1 has the LSB (Least Significant Bit) of the uplink index included in the uplink grant corresponding to the serving cell in which the UL-DL setting 0 is set in the subframe n, set to 1. Then, the PUSCH transmission according to the uplink grant is adjusted in subframe n + 7.
- LSB Large Significant Bit
- the first UL reference UL-DL setting and the second UL reference UL-DL setting specify (select) the correspondence between the subframe n in which the PUSCH is arranged and the subframe n + k in which the PHICH corresponding to the PUSCH is arranged Used to determine).
- the first UL reference UL-DL configuration for the primary cell and the first UL reference UL-DL for the secondary cell If the settings are the same, in each of the two serving cells, the corresponding first UL reference UL-DL configuration is determined between subframe n in which PUSCH is arranged and subframe n + k in which the PHICH to which the PUSCH is arranged is arranged. Used to identify (select, determine) correspondence.
- the corresponding second UL reference UL-DL configuration is used to specify (select, determine) the correspondence between the subframe n in which the PUSCH is arranged and the subframe n + k in which the PHICH to which the PUSCH is arranged .
- FIG. 14 is a diagram illustrating a correspondence between the subframe n in which the PUSCH is arranged in this embodiment and the subframe n + k in which the PHICH corresponding to the PUSCH is arranged.
- the terminal device 1 specifies (selects or determines) the value of k according to the table of FIG.
- the first UL reference UL-DL setting for the primary cell and the first UL for the secondary cell when one primary cell is set, or one primary cell and one secondary cell are set, the first UL reference UL-DL setting for the primary cell and the first UL for the secondary cell If the reference UL-DL configuration is the same, the UL-DL configuration refers to the first UL reference UL-DL configuration.
- UL-DL The setting refers to the second UL reference UL-DL setting.
- the first UL reference UL-DL setting and the second UL reference UL-DL setting are simply referred to as UL-DL setting.
- the terminal device 1 determines the PHICH resource in the subframe n + k specified from the table of FIG.
- the first DL reference UL-DL configuration and the second DL reference UL-DL configuration specify the correspondence between the subframe n in which the PDSCH is arranged and the subframe n + k in which the HARQ-ACK corresponding to the PDSCH is transmitted Used for (selection, determination).
- the first DL reference UL-DL configuration for the primary cell and the first DL reference UL-DL for the secondary cell If the settings are the same, in each of the two serving cells, the corresponding first DL reference UL-DL configuration is the subframe n in which the PDSCH is arranged and the subframe n + k in which the HARQ-ACK corresponding to the PDSCH is transmitted. Used to specify (select, determine) the correspondence with
- the corresponding second DL reference UL-DL configuration specifies (selects and determines) the correspondence between the subframe n in which the PDSCH is arranged and the subframe n + k in which the HARQ-ACK corresponding to the PDSCH is transmitted Used.
- FIG. 15 is a diagram illustrating a correspondence between the subframe nk in which the PDSCH is arranged in this embodiment and the subframe n in which the HARQ-ACK corresponding to the PDSCH is transmitted.
- the terminal device 1 specifies (selects or determines) the value of k according to the table of FIG.
- the first DL reference UL-DL setting for the primary cell and the first DL for the secondary cell when one primary cell is set, or one primary cell and one secondary cell are set, the first DL reference UL-DL setting for the primary cell and the first DL for the secondary cell. If the reference UL-DL configuration is the same, the UL-DL configuration refers to the first DL reference UL-DL configuration.
- UL-DL The setting refers to the second DL reference UL-DL setting.
- the first DL reference UL-DL setting and the second DL reference UL-DL setting are simply referred to as UL-DL setting.
- the terminal apparatus 1 When the terminal apparatus 1 detects the PDSCH transmission that is intended for the terminal apparatus 1 and should transmit the corresponding HARQ-ACK in the subframe nk (k is specified by the table of FIG. 15) of the serving cell. In the subframe n, HARQ-ACK is transmitted.
- the terminal device 1 does not perform a HARQ-ACK response to PDSCH transmission used for transmission of system information.
- the terminal apparatus 1 makes a HARQ-ACK response to the PDSCH transmission scheduled by the DCI format with the CRC scrambled by the C-RNTI.
- the terminal device 1 transmits HARQ-ACK for the PDSCH received in subframes n-6 and / or n-7 in the serving cell in which UL-DL setting 1 is set.
- the first DL reference UL-DL setting may not be defined for a serving cell that has not received the second information.
- the terminal apparatus 1 and the base station apparatus 3 change the processing performed based on the first DL reference UL-DL setting described above to the first UL reference UL-DL setting (serving cell UL-DL setting). May be performed on the basis.
- a serving cell that has not received the second information is a serving cell for which dynamic TDD is not set.
- the second information for the primary cell is not received, the second information for the secondary cell is received, and the first UL reference for the primary cell is received
- the first UL reference UL for the other serving cell (primary cell) -Setting the second DL reference UL-DL configuration for the serving cell (secondary cell) based on the DL configuration and the pair formed by the first DL reference UL-DL configuration for the serving cell (secondary cell) Good.
- the second information for the primary cell is not received
- the second information for the secondary cell is received
- the first UL reference for the primary cell is received
- the corresponding second DL reference UL-DL configuration is set to PDSCH in each of the two serving cells. May be used to identify (select, determine) the correspondence between subframe n in which HARQ is arranged and subframe n + k in which HARQ-ACK corresponding to the PDSCH is transmitted.
- the second information for the primary cell is not received, the second information for the secondary cell is received, and the first UL reference for the primary cell is received
- the corresponding first UL reference UL-DL setting (serving cell UL-DL setting) in the primary cell ) Is used for specifying (selecting and determining) the correspondence between the subframe n in which the PDSCH is arranged and the subframe n + k in which the HARQ-ACK corresponding to the PDSCH is transmitted.
- 1 DL reference UL-DL setting, PDSCH is placed It may be used to identify the correspondence between the subframe n + k where HARQ-ACK is transmitted corresponding to the sub-frame n PDSCH (selection decision) that.
- one primary cell and one secondary cell are set, the second information for the primary cell is not received, the second information for the secondary cell is received, and the first UL reference for the primary cell is received
- the primary cell UL-DL configuration in FIG. 10 and FIG. Refer to UL reference UL-DL settings.
- TPC Transmission Power Control
- the transmission power value for the transmission on the PUSCH in a certain subframe i for a certain cell c is calculated based on Equation (1). May be set.
- the terminal device 1 When the terminal device 1 performs transmission on PUCCH and PUSCH simultaneously, the terminal device 1 may set a transmission power value for transmission on a PUSCH in a certain subframe i for a certain cell c based on Equation (2).
- Equation (3) Preal, c (i) in Equation (1) and Equation (2) is defined based on Equation (3).
- P real, c (i) is a power value calculated (estimated) based on a real transmission for the PUSCH of the cell c.
- the calculation of the power value based on the actual transmission on the PUSCH (estimation) includes the meaning that the power value is calculated (estimated) based on the actual transmission on the PUSCH.
- the terminal apparatus 1 When the terminal apparatus 1 does not perform transmission on the PUSCH, the terminal apparatus 1 performs the transmission on the PUSCH in a certain subframe i for a certain cell c due to the accumulation of TPC commands received via the DCI format 3 / 3A for the PUSCH.
- a transmission power value may be assumed based on Equation (4).
- P reference, c (i) in Equation (4) is defined based on Equation (5).
- P reference, c (i) is a power value calculated (estimated) based on the reference format for PUSCH.
- the power value is calculated (estimated) based on the reference format for the PUSCH, and the power value is calculated (estimated) by assuming transmission on the PUSCH using the reference format. Including the meaning of that.
- P 0_PUSCH, c (1) is assumed as a reference format for PUSCH.
- ⁇ c (1) is assumed as a reference format for PUSCH.
- Equation (5) when the terminal apparatus 1 does not perform transmission on the PUCCH and PUSCH in the subframe i for a certain cell c, because of accumulation of TPC commands received via the DCI format 3 / 3A for PUSCH
- CMAX, c may be calculated.
- MPR, A-MPR, P -MPR, and, [Delta] T C is a parameter used to set the P CMAX, the value of c.
- P PUSCH, c (i) indicates a transmission power value for transmission on PUSCH in the i-th subframe.
- PCMAX, c indicates a maximum transmission power value (also referred to as a maximum output power value), and is set by the terminal device 1.
- p CMAX, c denotes the P CMAX, the true number of c (the liner value).
- p PUCCH indicates the true number of P PUCCH (i). P PUCCH (i) will be described later.
- M PUSCH, c indicates a PUSCH resource (for example, bandwidth) allocated by the base station apparatus 3, and is represented by the number of resource blocks.
- P 0_PUSCH, c (j) is a parameter indicating the basic transmission power for transmission on PUSCH.
- P 0_PUSCH, c (j) is the sum of the cell specific parameter P 0_NOMINAL_PUSCH, c (j) instructed from the upper layer and the user equipment specific parameter P 0_UE_PUSCH, c (j) instructed from the upper layer.
- j is 0 for PUSCH transmission corresponding to an uplink grant (semi-persistent grant) with SPS C-RNTI.
- j is 1 for PUSCH transmission corresponding to an uplink grant (dynamic scheduled grant) with C-RNTI.
- PL c indicates an estimation of a downlink path loss for a certain cell c, and is calculated in the terminal device 1.
- ⁇ c indicates a coefficient to be multiplied by the path loss for a certain cell c, and is designated by an upper layer.
- ⁇ TF, c (i) indicates an offset value depending on the modulation scheme / coding rate / resource utilization efficiency and the like.
- the terminal device 1 uses ⁇ TF, c (i) based on the number of uplink data (UL-SCH) bits or CQI / PMI bits transmitted on the PUSCH, the number of resource elements for PUSCH initial transmission, and the like.
- the state of power control adjustment for transmission on the current PUSCH (PUSCH power control adjustment state) is given by f c (i).
- PUSCH power control adjustment state PUSCH power control adjustment state
- whether the accumulation for f c (i) is enabled or disabled is given by the upper layer based on the parameter Accumulation-enabled.
- the terminal device 1 sets the value of f c (i) based on Equation (6).
- ⁇ PUSCH, c is a correction value and is referred to as a TPC command. That is, when the accumulation is valid based on the parameter Accumulation-enabled given from the upper layer, ⁇ PUSCH, c (i ⁇ K PUSCH ) indicates a value accumulated in f c (i ⁇ 1). .
- ⁇ PUSCH, c ( iK PUSCH ) is an uplink grant for a certain cell received in a certain subframe ( iK PUSCH ) and a TPC command for PUSCH included in DCI format 3 / 3A for PUSCH. Indicated based on the value set in the field.
- the value in which the TPC command field (2-bit information field) for the PUSCH included in the DCI format 3 for the uplink grant (DCI format 0 or DCI format 4) and the PUSCH is set is the accumulated correction value ⁇ Mapped to 1, 0, 1, 3 ⁇ .
- the value in which the TPC command field (1 bit information field) for PUSCH included in the DCI format 3A for PUSCH is mapped to the accumulated correction value ⁇ 1, 1 ⁇ .
- PUSCH transmission in subframe 2 or 7 is scheduled by the uplink grant, and the LSB of the uplink index included in the uplink grant is set to 1, the value of K PUSCH is 7.
- FIG. 16 is a diagram illustrating the value of K PUSCH in the present embodiment.
- the first UL reference UL-DL setting for the primary cell and the first UL for the secondary cell when one primary cell is set, or one primary cell and one secondary cell are set, the first UL reference UL-DL setting for the primary cell and the first UL for the secondary cell. If the reference UL-DL configuration is the same, the UL-DL configuration refers to the first UL reference UL-DL configuration.
- the first UL reference UL-DL setting for the primary cell and the first UL reference UL for the secondary cell is the subframe n-K PUSCH in which the TPC command for the PUSCH is transmitted and received Used to specify the correspondence with subframe n to which the TPC command is applied.
- the UL-DL The setting refers to the second UL reference UL-DL setting.
- each of the two serving cells indicates the correspondence between the subframe n-K PUSCH in which the TPC command for the PUSCH is transmitted and received and the subframe n to which the TPC command is applied. Used to identify.
- subframe i is indicated as an uplink subframe by the first UL reference UL-DL configuration (serving cell UL-DL configuration) for cell c. If it is not a subframe, ⁇ PUSCH, c (i ⁇ K PUSCH ) in Equation (6) is 0 dB. ⁇ PUSCH, c (i ⁇ K PUSCH ) is ⁇ PUSCH, c for subframe i.
- the terminal device 1 When the accumulation is invalid based on the parameter Accumulation-enabled given from the higher layer (that is, when the accumulation is not valid), the terminal device 1 performs f c (i) based on Expression (7). Set the value of.
- ⁇ PUSCH, c (i ⁇ K PUSCH ) indicates an absolute value with respect to f c (i). . That is, ⁇ PUSCH, c (i ⁇ K PUSCH ) may be valid only for subframe i.
- the value in which the TPC command field (2-bit information field) for the PUSCH included in the uplink grant (DCI format 0 or DCI format 4) is set is an absolute value ⁇ -4, -1, 1, 4 ⁇ Is mapped to
- the DCI format 3 / 3A may not be used for transmission power control for transmission on the PUSCH.
- subframe i is indicated as an uplink subframe by the first UL reference UL-DL configuration (serving cell UL-DL configuration) for cell c
- the terminal device 1 When the terminal device 1 performs transmission on the PUCCH, the terminal device 1 sets a transmission power value for transmission on the PUCCH in a certain subframe i for a certain cell c based on Expression (8).
- Preal_PUCCH, c (i) in Expression (8) is defined based on Expression (9).
- P real_PUCCH, c (i) is a power value calculated (estimated) based on actual transmission (a real transmission) to PUCCH.
- the calculation of the power value based on the actual transmission on the PUCCH (estimation) includes the meaning that the power value is calculated (estimated) based on the actual transmission on the PUCCH.
- P reference_PUCCH, c (i) is a power value calculated (estimated) based on the reference format for PUCCH.
- the power value is calculated (estimated) based on the reference format for the PUCCH, and the power value is calculated (estimated) assuming transmission on the PUCCH in which the reference format is used. Including the meaning of that.
- PUCCH format 1a is assumed as a reference format for PUCCH.
- Equation (10) when the terminal apparatus 1 does not perform transmission on the PUCCH and PUSCH in the subframe i for a certain cell c, for accumulation of TPC commands received via the DCI format 3 / 3A for the PUCCH
- P PUCCH, c (i) indicates a transmission power value for transmission on PUCCH in the i-th subframe.
- P 0 — PUCCH , c is a parameter indicating basic transmission power for transmission on PUCCH, and is instructed from an upper layer.
- h (n CQI, n HARQ ) is a value calculated based on the number of bits transmitted on the PUCCH and the format of the PUCCH.
- n CQI indicates the number of bits of channel state information transmitted on PUCCH
- n HARQ indicates the number of bits of HARQ-ACK transmitted on PUCCH.
- ⁇ F_PUCCH (F) is an offset value instructed from an upper layer for each PUCCH format. For example, ⁇ F_PUCCH (F) for PUCCH format 1a is always 0.
- the terminal device 1 may set the value of g (i) based on Expression (12).
- ⁇ PUCCH is a correction value and is called a TPC command. That is, ⁇ PUCCH (i ⁇ K PUCCH ) indicates a value accumulated in g (i ⁇ 1). Also, ⁇ PUCCH ( iK PUCCH ) is set in the TPC command field for the PUCCH included in the DCI format 3 / 3A for the downlink grant and PUCCH for a certain cell received in a certain subframe ( iK PUCCH ). Instructed based on the value set.
- the value in which the TPC command field (2-bit information field) for the PUCCH included in the DCI format 3 for the downlink grant and the PUCCH is set is the accumulated correction value ⁇ 1, 0, 1, 3 ⁇ . Mapped. For example, the value in which the TPC command field (1-bit information field) for PUCCH included in the DCI format 3A for PUCCH is set is mapped to the accumulated correction value ⁇ 1, 1 ⁇ .
- K PUCCH The value of K PUCCH is given by the table of FIG.
- the first DL reference UL-DL setting for the primary cell and the first DL for the secondary cell when one primary cell is set, or one primary cell and one secondary cell are set, the first DL reference UL-DL setting for the primary cell and the first DL for the secondary cell. If the reference UL-DL configuration is the same, the UL-DL configuration refers to the first DL reference UL-DL configuration.
- the first DL reference UL-DL setting for the primary cell and the first DL reference UL for the secondary cell If -DL settings are the same, the first DL reference UL-DL configuration corresponding to the primary cell, and the sub-frame n, wherein the sub-frame n-K PUCCH that TPC command for PUCCH may be transmitted and received TPC command is applied Used to specify the correspondence of
- UL-DL The setting refers to the second DL reference UL-DL setting.
- the second DL reference UL-DL configuration is used to identify the correspondence between the subframe n-K PUCCH in which the TPC command for the PUCCH is transmitted and received and the subframe n to which the TPC command is applied.
- the UL-DL configuration refers to the first UL reference UL-DL configuration (serving cell UL-DL configuration) for the primary cell. .
- the first DL reference UL-DL setting for the primary cell is not set, and the first UL reference UL-DL setting for the primary cell (serving cell)
- the second DL reference UL-DL configuration may be referred to.
- the first DL reference UL-DL configuration for the primary cell cell is not set, and subframe i is indicated as an uplink subframe by the first UL reference UL-DL configuration (serving cell UL-DL configuration) for the primary cell. If it is not a subframe, the value of g (i) in equation (12) is the same as the value of g (i ⁇ 1).
- transmission on the PUCCH may be performed only in the primary cell.
- FIG. 17 is a flowchart showing an example of a transmission power control method using the DCI format 3 / 3A in the present embodiment.
- Terminal apparatus 1 receives / detects DCI format 3 or DCI format 3A in subframe i-K of the primary cell (S1700). The terminal device 1 determines whether the CRC parity bit added to the DCI format 3 / 3A is scrambled by TPC-PUCCH-RNTI or TPCPUSCH-RNTI (S1702).
- the terminal apparatus 1 determines whether the first UL-DL setting is set (S1704). .
- the terminal apparatus 1 determines whether the first UL-DL setting is set (S1704). .
- step S1704 determines in step S1704 that the first UL-DL setting is set. If the terminal device 1 determines in step S1704 that the first UL-DL setting has not been set, the terminal device 1 proceeds to step S1708.
- the terminal device 1 determines that the CRC parity bit added to the DCI format 3 / 3A has been scrambled by TPC-PUSCH-RNTI, the terminal device 1 proceeds to step S1710.
- step S1706 the terminal device 1 specifies the value of K based on the first UL-DL setting, and the value of the TPC command included in the DCI format 3 or the DCI format 3A received in the subframe i-K. Based on the above, the value of the parameter g (i) in the subframe i of the primary cell is determined.
- step S1708 the terminal apparatus 1 specifies the value of K based on the second UL-DL setting, and the value of the TPC command included in the DCI format 3 or the DCI format 3A received in the subframe i-K. Based on the above, the value of the parameter g (i) in the subframe i of the primary cell is determined.
- step S1710 the terminal apparatus 1 specifies the value of K based on the second UL-DL setting, and the value of the TPC command included in the DCI format 3 or the DCI format 3A received in the subframe i-K. Based on the above, the value of the parameter f (i) in the subframe i of the primary cell is determined.
- the first UL reference UL-DL setting for the primary cell and the first UL reference for the secondary cell If the UL-DL configuration is the same, the first UL-DL configuration is the first DL reference UL-DL configuration.
- the first UL- The DL setting is a second DL reference UL-DL setting.
- the first UL reference UL-DL setting for the primary cell and the first UL reference UL for the secondary cell If the -DL settings are the same, the second UL-DL setting is the first UL reference UL-DL setting.
- the second UL- The DL setting is a second UL reference UL-DL setting.
- FIG. 18 is a schematic block diagram showing the configuration of the terminal device 1 of the present embodiment.
- the terminal device 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 unit 109.
- the upper layer processing unit 101 includes a radio resource control unit 1011, a scheduling information interpretation unit 1013, and a transmission power control 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 (transport block) 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.
- 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 / parameters of the own device.
- the radio resource control unit 1011 sets various setting information / parameters based on the upper layer signal received from the base station apparatus 3. That is, the radio resource control unit 1011 sets various setting information / parameters based on information indicating various setting information / parameters received from the base station apparatus 3. Also, the radio resource control unit 1011 generates information arranged in each uplink channel and outputs the information to the transmission unit 107.
- the radio resource control unit 1011 is also referred to as a setting unit 1011.
- the scheduling information interpretation unit 1013 provided in the upper layer processing unit 101 interprets the DCI format (scheduling information) received via the reception unit 105, and based on the interpretation result of the DCI format, the reception unit 105 and the transmission unit Control information is generated in order to perform the control of 107 and output to the control unit 103.
- a transmission power control unit 1015 included in the upper layer processing unit 101 controls transmission power for transmission on PUSCH and PUCCH based on various setting information / parameters, TPC commands, and the like managed by the radio resource control unit 1011. .
- 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 unit 109 according to the control signal input from the control unit 103, and the decoded information is the upper layer processing unit 101. Output to.
- the radio reception unit 1057 converts a downlink signal received via the transmission / reception antenna unit 109 into a baseband signal by orthogonal demodulation (down-conversion: down covert), removes unnecessary frequency components, and has an appropriate signal level.
- the amplification level is controlled so as to be maintained at, and 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 CP (Cyclic Prefix) from the converted digital signal, and performs a fast Fourier transform (FFT) on the signal from which the CP has been removed to obtain a frequency domain signal. Extract.
- CP Cyclic Prefix
- the demultiplexing unit 1055 separates the extracted signals into PHICH, PDCCH, EPDCCH, PDSCH, and downlink reference signals. Further, demultiplexing section 1055 compensates the propagation path of PHICH, PDCCH, EPDCCH, 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 performs QPSK modulation demodulation on PDCCH and / or EPDCCH, and outputs the result to decoding section 1051.
- Decoding section 1051 attempts to decode PDCCH and / or EPDCCH, and outputs the decoded downlink control information and the RNTI corresponding to the downlink control information to higher layer processing section 101 when the decoding is successful.
- the demodulation unit 1053 demodulates the modulation scheme notified by the downlink grant such as QPSK (Quadrature Shift Keying), 16QAM (Quadrature Amplitude Modulation), 64QAM, and the like to the decoding unit 1051.
- the decoding unit 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 the higher layer processing unit 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 channel measurement unit 1059 performs channel measurement and / or interference measurement in order to calculate CQI.
- the transmission unit 107 generates an uplink reference signal according to the control signal input from the control unit 103, encodes and modulates the uplink data (transport block) input from the higher layer processing unit 101, PUCCH, The PUSCH and the generated uplink reference signal are multiplexed and transmitted to the base station apparatus 3 via the transmission / reception antenna unit 109.
- the encoding unit 1071 performs encoding such as convolutional encoding and block encoding on the uplink control information input from the higher layer processing unit 101.
- the encoding unit 1071 performs turbo encoding based on information used for PUSCH scheduling.
- 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 determines the number of spatially multiplexed data sequences based on information used for PUSCH scheduling, and transmits the same PUSCH by using MIMO (Multiple Input Multiple Multiple Output) SM (Spatial Multiplexing).
- MIMO Multiple Input Multiple Multiple Output
- SM Spatial Multiplexing
- the uplink reference signal generation unit 1079 is a physical layer cell identifier (physical layer cell identity: PCI, Cell ID, etc.) for identifying the base station apparatus 3, a bandwidth for arranging the uplink reference signal, and an uplink grant.
- a sequence determined by a predetermined rule (formula) is generated on the basis of the cyclic shift and the parameter value for generating the DMRS sequence notified in (1).
- the multiplexing unit 1075 rearranges the PUSCH modulation symbols in parallel according to the control signal input from the control unit 103, and then performs a discrete Fourier transform (Discrete-Fourier-Transform: DFT). Also, multiplexing section 1075 multiplexes the PUCCH and PUSCH signals and the generated uplink reference signal for each transmission antenna port. That is, multiplexing section 1075 arranges the PUCCH and PUSCH signals and the generated uplink reference signal in the resource element for each transmission antenna port.
- DFT discrete Fourier transform
- Radio transmission section 1077 performs inverse fast Fourier transform (Inverse Fast Fourier Transform: IFFT) on the multiplexed signal to generate an SC-FDMA symbol, adds a CP to the generated SC-FDMA symbol, and A digital signal is generated, the baseband digital signal is converted into an analog signal, an excess frequency component is removed using a low-pass filter, the signal is up-converted to a carrier frequency, and power is amplified. Output to and send.
- IFFT inverse fast Fourier transform
- FIG. 19 is a schematic block diagram showing the configuration of the base station apparatus 3 of the present embodiment.
- 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 unit 309.
- the upper layer processing unit 301 includes a radio resource control unit 3011, a scheduling unit 3013, and a transmission power control 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 (transport block), system information, RRC message, MAC CE (Control Element), etc. arranged in the downlink PDSCH, or higher level. Obtained from the node and output to the transmission unit 307.
- the radio resource control unit 3011 manages various setting information / parameters of each terminal device 1.
- the radio resource control unit 3011 may set various setting information / parameters for each terminal apparatus 1 via higher layer signals. That is, the radio resource control unit 1011 transmits / broadcasts information indicating various setting information / parameters.
- the radio resource control unit 3011 is also referred to as a setting unit 3011.
- the scheduling unit 3013 included in the upper layer processing unit 301 uses the received channel state information and the channel allocation information, the channel estimation value, the channel quality, and the like to assign the physical channel (PDSCH and PUSCH).
- the coding rate and modulation scheme and transmission power of the frame and physical channels (PDSCH and PUSCH) are determined.
- the scheduling unit 3013 Based on the scheduling result, the scheduling unit 3013 generates control information (for example, DCI format) for controlling the reception unit 305 and the transmission unit 307 and outputs the control information to the control unit 303.
- the scheduling unit 3013 further determines timing for performing transmission processing and reception processing.
- the transmission power control unit 3015 included in the higher layer processing unit 301 transmits transmission power for transmission on the PUSCH and PUCCH by the terminal device 1 via various setting information / parameters, TPC commands, and the like managed by the radio resource control unit 3011. Control.
- 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 terminal device 1 via the transmission / reception antenna unit 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 the uplink signal received via the transmission / reception antenna unit 309 into a baseband signal by orthogonal demodulation (down-conversion: down covert), removes unnecessary frequency components, and has a signal level of The amplification level is controlled so as to be appropriately maintained, and quadrature demodulation is performed based on the in-phase component and the quadrature component of the received signal, and the analog signal subjected to the quadrature demodulation is converted into a digital signal.
- the wireless receiving unit 3057 removes a portion corresponding to CP (Cyclic Prefix) from the converted digital signal.
- the radio reception unit 3057 performs fast Fourier transform (FFT) on the signal from which the CP is removed, extracts a frequency domain signal, and outputs the signal to the demultiplexing unit 3055.
- FFT fast Fourier transform
- the demultiplexing unit 1055 demultiplexes the signal input from the radio receiving unit 3057 into signals such as PUCCH, PUSCH, and uplink reference signal. Note that 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 terminal device 1. In addition, demultiplexing section 3055 compensates for the propagation paths of PUCCH and PUSCH from the propagation path estimation value input from channel measurement section 3059. Further, the demultiplexing unit 3055 outputs the separated uplink reference signal to the channel measurement unit 3059.
- the demodulator 3053 performs inverse discrete Fourier transform (Inverse Discrete Fourier Transform: IDFT) on the PUSCH, acquires modulation symbols, and performs BPSK (Binary Shift Keying), QPSK, 16QAM,
- IDFT inverse discrete Fourier transform
- BPSK Binary Shift Keying
- QPSK Quadrature Phase Keying
- 16QAM 16QAM
- the received signal is demodulated using a predetermined modulation scheme such as 64QAM, or the modulation method notified by the own device to each terminal device 1 in advance using an uplink grant.
- the demodulator 3053 uses the MIMO SM based on the number of spatially multiplexed sequences notified in advance to each terminal device 1 using an uplink grant and information indicating precoding performed on the sequences.
- a plurality of uplink data modulation symbols transmitted on the PUSCH are separated.
- the decoding unit 3051 encodes the demodulated PUCCH and PUSCH encoding bits in a predetermined encoding scheme, or a coding rate at which the device itself notifies the terminal device 1 in advance with an uplink grant. And the decoded uplink data and the uplink control information are output to the upper layer processing unit 101.
- 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.
- Channel measurement section 309 measures an estimated channel value, 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, EPDCCH, PDSCH, and downlink reference signal are multiplexed, and the signal is transmitted to the terminal device 1 via the transmission / reception antenna unit 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 generates a known sequence as a downlink reference signal, which is obtained by a predetermined rule based on a physical layer cell identifier (PCI) for identifying the base station apparatus 3 and the like. To do.
- the multiplexing unit 3075 multiplexes the modulated modulation symbol of each channel and the generated downlink reference signal. That is, multiplexing section 3075 arranges the modulated modulation symbol of each channel and the generated downlink reference signal in the resource element.
- the wireless transmission unit 3077 performs inverse fast Fourier transform (Inverse Fast Fourier Transform: IFFT) on the multiplexed modulation symbol and the like to generate an OFDM symbol, adds a CP to the generated OFDM symbol, and converts a baseband digital signal. Generate baseband digital signal into analog signal, remove excess frequency component with low-pass filter, upconvert to carrier frequency, power amplify, output to transmit / receive antenna unit 309 and transmit To do.
- IFFT inverse fast Fourier transform
- the terminal device 1 includes information indicating the first DL reference UL-DL configuration, information indicating the first UL reference UL-DL configuration, information indicating the TPC-PUCCH-RNTI, Information indicating TPC-PUSCH-RNTI, information indicating parameter tpc-index corresponding to TPC-PUCCH-RNTI, information indicating parameter tpc-index corresponding to TPC-PUSCH-RNTI, scrambled by TPC-PUCCH-RNTI
- the receiver 105 receives the DCI format 3 / 3A to which the CRC parity bit is added and the DCI format 3 / 3A to which the CRC parity bit scrambled by TPC-PUSCH-RNTI is added.
- the terminal device 1 includes a setting unit 1011 that sets a first UL-DL setting, a second UL-DL setting, and a third UL-DL setting (transmission direction UL-DL setting). .
- the first UL-DL setting of the present embodiment is used to specify a subframe in which HARQ-ACK corresponding to the PDSCH is transmitted when the PDSCH is received.
- the second UL-DL configuration of the present embodiment is used to specify a subframe in which HARQ-ACK corresponding to the PUSCH is received when the PUSCH is transmitted.
- the first UL reference UL-DL configuration for the primary cell and the first UL reference UL-DL for the secondary cell If the settings are the same, the first UL-DL setting is the first DL reference UL-DL setting and the second UL-DL setting is the first UL reference UL-DL setting.
- the first UL-DL configuration Is the second DL reference UL-DL configuration
- the second UL-DL configuration is the second UL reference UL-DL configuration
- the terminal device 1 applies a TPC command included in the DCI format 3 / 3A based on the RNTI used for scrambling the CRC parity bits added to the DCI format 3 / 3A.
- a transmission power control unit 1015 for specifying a frame is provided.
- the transmission power control unit 1015 specifies the value of K based on the RNTI used for scrambling the CRC parity bits added to the DCI format 3 / 3A, and receives it in the subframe i ⁇ K.
- the transmission power for transmission by the terminal apparatus in subframe i may be calculated based on the TPC command included in the DCI format 3 / 3A.
- the transmission power control unit 1015 performs the first UL-DL setting or the second UL-DL based on the RNTI used for scrambling the CRC parity bits added to the DCI format 3 / 3A. Select a setting, select a value of K based on the selected first UL-DL setting or the selected second UL-DL setting, and include it in the DCI format 3 / 3A received in subframe i-K
- the transmission power for transmission by the terminal apparatus in subframe i may be calculated based on the TPC command to be transmitted.
- the transmission power control unit 1015 When the CRC parity bit added to the DCI format 3 / 3A is scrambled by the TPC-PUCCH-RNTI, the transmission power control unit 1015 according to this embodiment performs the K PUCCH based on the first UL-DL setting. Is used to adjust the transmission power for transmission of PUCCH in subframe i based on the TPC command included in the DCI format 3 / 3A received in subframe i-K PUCCH . The value of one parameter g (i) may be determined.
- the transmission power control unit 1015 When the CRC parity bit added to the DCI format 3 / 3A is scrambled by TPC-PUSCH-RNTI, the transmission power control unit 1015 according to the present embodiment performs K PUSCH based on the second UL-DL setting . Is used to adjust the transmission power for PUSCH transmission in subframe i based on the TPC command included in the DCI format 3 / 3A received in subframe i-K PUSCH . The value of the second parameter f (i) may be determined.
- the transmission power control unit 1015 of the present embodiment uses the first DCI format (for example, DCI format 1A, DCI format 3 with TPC-PUCCH-RNTI, or TPC-PUCCH-RNTI) received in the subframe n-K PUCCH.
- the first parameter value used to adjust the transmission power for PUCCH transmission in subframe n may be determined based on the TPC command for PUCCH included in the DCI format 3A).
- the transmission power control unit 1015 uses the second DCI format (for example, DCI format 0, DCI format 3 with TPC-PUSCH-RNTI, or TPC-PUSCH-RNTI) received in the subframe m-K PUSCH.
- the value of the second parameter used to adjust the transmission power for the PUSCH transmission in the subframe m may be determined based on the TPC command for the PUSCH included in the DCI format 3A).
- the transmission power control unit 1015 of the present embodiment specifies the value of the K PUCCH based on the first UL-DL setting and specifies the value of the K PUSCH based on the second UL-DL setting. Good.
- the transmission power control unit 1015 of the present embodiment sets the value of the first parameter for the subframe i not designated as an uplink subframe by the first UL-DL setting to the value of the first parameter for the subframe i-1. It may be set to the value of one parameter. Setting the value of the first parameter for subframe i to the value of the first parameter for subframe i-1 means that the value of the first parameter for subframe i is not updated. May be.
- the transmission power control unit 1015 of the present embodiment specifies the value of the K PUCCH based on the second UL-DL configuration, and the second UL-DL configuration
- the value of the first parameter for the subframe i not designated as an uplink subframe by the UL-DL setting may be set to the value of the first parameter for the subframe i-1.
- the transmission power control unit 1015 of the present embodiment specifies the value of K PUCCH based on the first UL-DL configuration, and
- the value of the first parameter for subframe i that is not indicated as an uplink subframe by the UL-DL setting of the first frame may be set to the value of the first parameter for subframe i-1.
- the transmission power control unit 1015 of the present embodiment sets the value of the second parameter for the subframe k not designated as an uplink subframe by the second UL-DL setting to the value of the second parameter for the subframe k-1. It may be set to the value of the second parameter. Further, the transmission power control unit 1015 sets the value of the second parameter for the subframe k not designated as an uplink subframe by the third UL-DL setting to the second parameter for the subframe k ⁇ 1. It may be set to the value of the parameter. Setting the value of the second parameter for subframe k to the value of the first parameter for subframe k-1 means that the value of the second parameter for subframe k is not updated. Also good.
- the transmission power control unit 1015 of the present embodiment performs the above processing on the subframe k that is not indicated as an uplink subframe by the third UL-DL setting.
- the value of the second parameter may be set to the value of the second parameter for subframe k-1.
- the transmission power control unit 1015 when the first UL-DL configuration is not set, the second power for the subframe k not designated as an uplink subframe by the second UL-DL configuration. May be set to the value of the second parameter for subframe k-1.
- the base station apparatus 3 of the present embodiment includes information indicating the first DL reference UL-DL setting, information indicating the first UL reference UL-DL setting, information indicating the TPC-PUCCH-RNTI, and TPC-PUSCH-RNTI.
- the transmission unit 307 transmits the DCI format 3 / 3A and the DCI format 3 / 3A to which the CRC parity bits scrambled by the TPC-PUSCH-RNTI are added.
- the base station apparatus 3 includes a setting unit 3011 that sets a first UL-DL setting and a second UL-DL setting in the terminal apparatus 1 via an upper layer signal.
- the base station apparatus 3 of the present embodiment controls transmission power for transmission by the terminal apparatus in subframe i by a TPC command included in the DCI format 3 / 3A transmitted in subframe i-K.
- a control unit 3015 is provided.
- the transmission power control unit 3015 When the CRC parity bit added to the DCI format 3 / 3A is scrambled by the TPC-PUCCH-RNTI, the transmission power control unit 3015 according to the present embodiment performs the above K based on the first UL-DL setting.
- a value may be specified.
- the transmission power control unit 3015 When the CRC parity bit added to the DCI format 3 / 3A is scrambled by the TPC-PUSCH-RNTI, the transmission power control unit 3015 according to the present embodiment performs the above K based on the second UL-DL setting.
- a value may be specified.
- the transmission power control unit 3015 specifies the value of K PUCCH based on the first UL-DL setting, and is scrambled by TPC-PUCCH-RNTI transmitted in subframe i-K PUCCH.
- the first parameter g (i) in subframe i may be adjusted by a TPC command included in the DCI format 3 / 3A to which a CRC parity bit is added.
- the first parameter g (i) is used to control transmission power for PUCCH transmission by the terminal device.
- the transmission power control unit 3015 specifies the value of K PUSCH based on the second UL-DL setting, and is scrambled by TPC-PUSCH-RNTI transmitted in subframe i-K PUSCH.
- the second parameter f (i) in subframe i may be adjusted by a TPC command included in the DCI format 3 / 3A to which a CRC parity bit is added.
- the second parameter f (i) is used to control transmission power for PUSCH transmission by the terminal device.
- Transmission power control unit 3015 of the present embodiment is transmitted in sub-frame n-K PUCCH, the TPC command for PUCCH included in the first DCI format, for transmission of PUCCH by the terminal device in a subframe n
- the first parameter used for controlling the transmission power may be adjusted.
- the value of the K PUCCH may be specified based on the first UL-DL configuration.
- the transmission power control unit 3015 of the present embodiment is configured to transmit the PUSCH by the terminal apparatus in the subframe m according to the TPC command for the PUSCH included in the second DCI format transmitted in the subframe m-K PUSCH . You may adjust the 2nd parameter used in order to control transmission power.
- the value of the K PUSCH may be specified based on a second UL-DL configuration.
- the value of the first parameter for the subframe i not designated as an uplink subframe by the first UL-DL setting is the first parameter value for the subframe i-1. May be set to the value of the parameter.
- the value of the K PUCCH is specified based on the second UL-DL configuration, and the second UL-DL configuration is determined.
- the value of the first parameter for the subframe i that is not indicated as an uplink subframe by the DL setting may be set to the value of the first parameter for the subframe i-1.
- the value of K PUCCH is specified based on the first UL-DL configuration, and the first UL-DL configuration is determined.
- the value of the first parameter for subframe i not designated as an uplink subframe by the UL-DL configuration may be set to the value of the first parameter for subframe i-1.
- the value of the second parameter for the subframe k not designated as an uplink subframe by the second UL-DL setting is the second parameter for the subframe k ⁇ 1. May be set to the value of the parameter. Further, in the base station apparatus 3, the value of the second parameter for the subframe k not designated as an uplink subframe by the third UL-DL setting is the second parameter for the subframe k-1. May be set to the value of.
- the first UL-DL configuration for the subframe k not designated as an uplink subframe by the third UL-DL configuration when the first UL-DL configuration is set, the first UL-DL configuration for the subframe k not designated as an uplink subframe by the third UL-DL configuration.
- the value of the second parameter may be set to the value of the second parameter for subframe k-1.
- the second UL-DL setting for the subframe k not designated as an uplink subframe by the second UL-DL setting is performed.
- the value of the parameter may be set to the value of the second parameter for subframe k-1.
- the terminal device can efficiently execute processing related to transmission power.
- a program that operates in the base station device 3 and the terminal device 1 related to the present invention is a program that controls a CPU (Central Processing Unit) or the like (a computer is functioned) 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 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 terminal device 1 or the base station device 3 and includes hardware such as an OS and 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.
- the base station device 3 in the above-described embodiment can be realized as an aggregate (device group) composed of a plurality of devices.
- Each of the devices constituting the device group may include a part or all of each function or each functional block of the base station device 3 according to the above-described embodiment.
- the device group only needs to have one function or each function block of the base station device 3.
- the terminal device 1 according to the above-described embodiment can also communicate with the base station device as an aggregate.
- the base station apparatus 3 in the above-described embodiment may be EUTRAN (Evolved Universal Terrestrial Radio Access Network).
- the base station device 3 in the above-described embodiment may have a part or all of the functions of the upper node for the eNodeB.
- a part or all of the terminal 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 terminal 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.
- the terminal device is described as an example of the communication device.
- the present invention is not limited to this, and the stationary or non-movable electronic device installed indoors or outdoors,
- the present invention can also be applied to terminal devices or communication devices such as AV equipment, kitchen equipment, cleaning / washing equipment, air conditioning equipment, office equipment, vending machines, and other daily life equipment.
- the present invention can be applied to terminal devices or communication devices such as AV equipment, kitchen equipment, cleaning / washing equipment, air conditioning equipment, office equipment, vending machines, and other life equipment.
- Terminal 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 1011 Radio resource control section 1013 Scheduling information Interpretation unit 1015 Transmission power control unit 3011 Radio resource control unit 3013 Scheduling unit 3015 Transmission power control unit
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Abstract
Description
本願は、2014年4月14日に、日本に出願された特願2014-082834号に基づき優先権を主張し、その内容をここに援用する。
・PUCCH(Physical Uplink Control Channel)
・PUSCH(Physical Uplink Shared Channel)
・PRACH(Physical Random Access Channel)
・上りリンク参照信号(Uplink Reference Signal: UL RS)
・DMRS(Demodulation Reference Signal)
・SRS(Sounding Reference Signal)
・PBCH(Physical Broadcast Channel)
・PCFICH(Physical Control Format Indicator Channel)
・PHICH(Physical Hybrid automatic repeat request Indicator Channel)
・PDCCH(Physical Downlink Control Channel)
・EPDCCH(Enhanced Physical Downlink Control Channel)
・PDSCH(Physical Downlink Shared Channel)
・PMCH(Physical Multicast Channel)
・同期信号(Synchronization signal: SS)
・下りリンク参照信号(Downlink Reference Signal: DL RS)
・CRS(Cell-specific Reference Signal)
・PDSCHに関連するURS(UE-specific Reference Signal)
・EPDCCHに関連するDMRS(Demodulation Reference Signal)
・NZP CSI-RS(Non-Zero Power Chanel State Information - Reference Signal)
・ZP CSI-RS(Zero Power Chanel State Information - Reference Signal)
・MBSFN RS(Multimedia Broadcast and Multicast Service over Single Frequency Network Reference signal)
・PRS(Positioning Reference Signal)
・下りリンクサブフレーム(第1のサブフレーム)
・上りリンクサブフレーム(第2のサブフレーム)
・スペシャルサブフレーム(第3のサブフレーム)
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 スケジューリング情報解釈部
1015 送信電力制御部
3011 無線リソース制御部
3013 スケジューリング部
3015 送信電力制御部
Claims (12)
- 基地局装置と通信する端末装置であって、
サブフレームn-KPUCCHで受信した第1のDCIフォーマットに含まれるPUCCHに対するTPCコマンドに基づいて、サブフレームnにおけるPUCCHの送信のための送信電力を調整するために用いられる第1のパラメータの値を決定し、
サブフレームm-KPUSCHで受信した第2のDCIフォーマットに含まれるPUSCHに対するTPCコマンドに基づいて、サブフレームmにおけるPUSCHの送信のための送信電力を調整するために用いられる第2のパラメータの値を決定し、
第1のUL-DL設定に基づいて前記KPUCCHの値を特定し、
第2のUL-DL設定に基づいて前記KPUSCHの値を特定し、
前記第1のUL-DL設定によって上りリンクサブフレームとして指示されていないサブフレームiに対する前記第1のパラメータの値を、サブフレームi-1に対する前記第1のパラメータの値にセットし、
前記第2のUL-DL設定によって上りリンクサブフレームとして指示されていないサブフレームkに対する前記第2のパラメータの値を、サブフレームk-1に対する前記第2のパラメータの値にセットする送信電力制御部と、を備える、
端末装置。 - 基地局装置と通信する端末装置であって、
第1のUL-DL設定および第2のUL-DL設定をセットする設定部と、
DCIフォーマット3またはDCIフォーマット3Aを受信する受信部と、
前記DCIフォーマット3または前記DCIフォーマット3Aに付加されたCRCパリティビットがTPC-PUCCH-RNTIによってスクランブルされている場合、サブフレームn-KPUCCHで受信した前記DCIフォーマット3または前記DCIフォーマット3Aに含まれるTPCコマンドに基づいて、サブフレームnにおけるPUCCHの送信のための送信電力を調整するために用いられる第1のパラメータの値を決定し、
前記DCIフォーマット3または前記DCIフォーマット3Aに付加されたCRCパリティビットがTPC-PUSCH-RNTIによってスクランブルされている場合、サブフレームm-KPUSCHで受信した前記DCIフォーマット3または前記DCIフォーマット3Aに含まれるTPCコマンドに基づいて、サブフレームmにおけるPUSCHの送信のための送信電力を調整するために用いられる第2のパラメータの値を決定し、
前記第1のUL-DL設定に基づいて前記KPUCCHの値を特定し、
前記第2のUL-DL設定に基づいて前記KPUSCHの値を特定し、
前記第1のUL-DL設定によって上りリンクサブフレームとして指示されていないサブフレームiに対する前記第1のパラメータの値を、サブフレームi-1に対する前記第1のパラメータの値にセットし、
前記第2のUL-DL設定によって上りリンクサブフレームとして指示されていないサブフレームkに対する前記第2のパラメータの値を、サブフレームk-1に対する前記第2のパラメータの値にセットする送信電力制御部と、を備える、
端末装置。 - 前記送信電力制御部は、前記第1のUL-DL設定がセットされていない場合、前記第2のUL-DL設定に基づいて前記KPUCCHの値を特定し、前記第2のUL-DL設定によって上りリンクサブフレームとして指示されていない前記サブフレームiに対する前記第1のパラメータの値を、前記サブフレームi-1に対する前記第1のパラメータの値にセットする
請求項1または2に記載の端末装置。 - 前記第1のUL-DL設定は、PDSCHを受信した場合に、前記PDSCHに対応するHARQ-ACKが送信されるサブフレームを特定するために用いられ、
前記第2のUL-DL設定は、前記PUSCHを送信した場合に、前記PUSCHに対応するHARQ-ACKが受信されるサブフレームを特定するために用いられる
請求項1または2に記載の端末装置。 - 端末装置と通信する基地局装置であって、
サブフレームn-KPUCCHで送信される、第1のDCIフォーマットに含まれるPUCCHに対するTPCコマンドによって、サブフレームnにおける前記端末装置によるPUCCHの送信のための送信電力を制御するために用いられる第1のパラメータを調整し、
サブフレームm-KPUSCHで送信される、第2のDCIフォーマットに含まれるPUSCHに対するTPCコマンドによって、サブフレームmにおける前記端末装置によるPUSCHの送信のための送信電力を制御するために用いられる第2のパラメータを調整する送信電力制御部と、を備え、
前記KPUCCHの値は第1のUL-DL設定に基づいて特定され、
前記KPUSCHの値は第2のUL-DL設定に基づいて特定され、
前記第1のUL-DL設定によって上りリンクサブフレームとして指示されていないサブフレームiに対する前記第1のパラメータの値は、サブフレームi-1に対する前記第1のパラメータの値にセットされ、
前記第2のUL-DL設定によって上りリンクサブフレームとして指示されていないサブフレームkに対する前記第2のパラメータの値は、サブフレームk-1に対する前記第2のパラメータの値にセットされる
基地局装置。 - 端末装置と通信する基地局装置であって、
上位層の信号を介して、第1のUL-DL設定および第2のUL-DL設定をセットする設定部と、
DCIフォーマット3またはDCIフォーマット3Aを送信する送信部と、
サブフレームn-KPUCCHで送信される、TPC-PUCCH-RNTIによってスクランブルされるCRCパリティビットが付加される前記DCIフォーマット3または前記DCIフォーマット3Aに含まれるTPCコマンドによって、サブフレームnにおける前記端末装置によるPUCCHの送信のための送信電力を制御するために用いられる第1のパラメータを調整し、
サブフレームm-KPUSCHで送信される、TPC-PUSCH-RNTIによってスクランブルされるCRCパリティビットが付加される前記DCIフォーマット3または前記DCIフォーマット3Aに含まれるTPCコマンドによって、サブフレームmにおける前記端末装置によるPUSCHの送信のための送信電力を制御するために用いられる第2のパラメータを調整する送信電力制御部と、を備え、
前記KPUCCHの値は前記第1のUL-DL設定に基づいて特定され、
前記KPUSCHの値は前記第2のUL-DL設定に基づいて特定され、
前記第1のUL-DL設定によって上りリンクサブフレームとして指示されていないサブフレームiに対する前記第1のパラメータの値は、サブフレームi-1に対する前記第1のパラメータの値にセットされ、
前記第2のUL-DL設定によって上りリンクサブフレームとして指示されていないサブフレームkに対する前記第2のパラメータの値は、サブフレームk-1に対する前記第2のパラメータの値にセットされる
基地局装置。 - 前記第1のUL-DL設定がセットされていない場合、前記KPUCCHの値は前記第2のUL-DL設定に基づいて特定され、前記第2のUL-DL設定によって上りリンクサブフレームとして指示されていない前記サブフレームiに対する前記第1のパラメータの値は、前記サブフレームi-1に対する前記第1のパラメータの値にセットされる
請求項5または6に記載の基地局装置。 - 前記第1のUL-DL設定は、PDSCHを受信した場合に、前記PDSCHに対応するHARQ-ACKが送信されるサブフレームを特定するために用いられ、
前記第2のUL-DL設定は、前記PUSCHを送信した場合に、前記PUSCHに対応するHARQ-ACKが受信されるサブフレームを特定するために用いられる
請求項5または6に記載の基地局装置。 - 基地局装置と通信する端末装置に用いられる無線通信方法であって、
サブフレームn-KPUCCHで受信した第1のDCIフォーマットに含まれるPUCCHに対するTPCコマンドに基づいて、サブフレームnにおけるPUCCHの送信のための送信電力を調整するために用いられる第1のパラメータの値を決定し、
サブフレームm-KPUSCHで受信した第2のDCIフォーマットに含まれるPUSCHに対するTPCコマンドに基づいて、サブフレームmにおけるPUSCHの送信のための送信電力を調整するために用いられる第2のパラメータの値を決定し、
第1のUL-DL設定に基づいて前記KPUCCHの値を特定し、
第2のUL-DL設定に基づいて前記KPUSCHの値を特定し、
前記第1のUL-DL設定によって上りリンクサブフレームとして指示されていないサブフレームiに対する前記第1のパラメータの値を、サブフレームi-1に対する前記第1のパラメータの値にセットし、
前記第2のUL-DL設定によって上りリンクサブフレームとして指示されていないサブフレームkに対する前記第2のパラメータの値を、サブフレームk-1に対する前記第2のパラメータの値にセットする
無線通信方法。 - 端末装置と通信する基地局装置に用いられる無線通信方法であって、
サブフレームn-KPUCCHで送信される、第1のDCIフォーマットに含まれるPUCCHに対するTPCコマンドによって、サブフレームnにおける前記端末装置によるPUCCHの送信のための送信電力を制御するために用いられる第1のパラメータを調整し、
サブフレームm-KPUSCHで送信される、第2のDCIフォーマットに含まれるPUSCHに対するTPCコマンドによって、サブフレームmにおける前記端末装置によるPUSCHの送信のための送信電力を制御するために用いられる第2のパラメータを調整し、
前記KPUCCHの値は第1のUL-DL設定に基づいて特定され、
前記KPUSCHの値は第2のUL-DL設定に基づいて特定され、
前記第1のUL-DL設定によって上りリンクサブフレームとして指示されていないサブフレームiに対する前記第1のパラメータの値は、サブフレームi-1に対する前記第1のパラメータの値にセットされ、
前記第2のUL-DL設定によって上りリンクサブフレームとして指示されていないサブフレームkに対する前記第2のパラメータの値は、サブフレームk-1に対する前記第2のパラメータの値にセットされる
無線通信方法。 - 基地局装置と通信する端末装置に実装される集積回路であって、
サブフレームn-KPUCCHで受信した第1のDCIフォーマットに含まれるPUCCHに対するTPCコマンドに基づいて、サブフレームnにおけるPUCCHの送信のための送信電力を調整するために用いられる第1のパラメータの値を決定する機能と、
サブフレームm-KPUSCHで受信した第2のDCIフォーマットに含まれるPUSCHに対するTPCコマンドに基づいて、サブフレームmにおけるPUSCHの送信のための送信電力を調整するために用いられる第2のパラメータの値を決定する機能と、
第1のUL-DL設定に基づいて前記KPUCCHの値を特定する機能と、
第2のUL-DL設定に基づいて前記KPUSCHの値を特定する機能と、
前記第1のUL-DL設定によって上りリンクサブフレームとして指示されていないサブフレームiに対する前記第1のパラメータの値を、サブフレームi-1に対する前記第1のパラメータの値にセットする機能と、
前記第2のUL-DL設定によって上りリンクサブフレームとして指示されていないサブフレームkに対する前記第2のパラメータの値を、サブフレームk-1に対する前記第2のパラメータの値にセットする機能と、を含む一連の機能を前記端末装置に発揮させる
集積回路。 - 端末装置と通信する基地局装置に実装される集積回路であって、
サブフレームn-KPUCCHで送信される、第1のDCIフォーマットに含まれるPUCCHに対するTPCコマンドによって、サブフレームnにおける前記端末装置によるPUCCHの送信のための送信電力を制御するために用いられる第1のパラメータを調整する機能と、
サブフレームm-KPUSCHで送信される、第2のDCIフォーマットに含まれるPUSCHに対するTPCコマンドによって、サブフレームmにおける前記端末装置によるPUSCHの送信のための送信電力を制御するために用いられる第2のパラメータを調整する機能と、を含む一連の機能を前記基地局装置に発揮させ、
前記KPUCCHの値は第1のUL-DL設定に基づいて特定され、
前記KPUSCHの値は第2のUL-DL設定に基づいて特定され、
前記第1のUL-DL設定によって上りリンクサブフレームとして指示されていないサブフレームiに対する前記第1のパラメータの値は、サブフレームi-1に対する前記第1のパラメータの値にセットされ、
前記第2のUL-DL設定によって上りリンクサブフレームとして指示されていないサブフレームkに対する前記第2のパラメータの値は、サブフレームk-1に対する前記第2のパラメータの値にセットされる
集積回路。
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