WO2021199388A1 - 端末 - Google Patents

端末 Download PDF

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Publication number
WO2021199388A1
WO2021199388A1 PCT/JP2020/015113 JP2020015113W WO2021199388A1 WO 2021199388 A1 WO2021199388 A1 WO 2021199388A1 JP 2020015113 W JP2020015113 W JP 2020015113W WO 2021199388 A1 WO2021199388 A1 WO 2021199388A1
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WIPO (PCT)
Prior art keywords
pucch
ccs
uci
uplink control
information
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PCT/JP2020/015113
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English (en)
French (fr)
Japanese (ja)
Inventor
翔平 吉岡
浩樹 原田
聡 永田
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NTT Docomo Inc
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NTT Docomo Inc
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Priority to PCT/JP2020/015113 priority Critical patent/WO2021199388A1/ja
Priority to JP2022511448A priority patent/JPWO2021199388A1/ja
Publication of WO2021199388A1 publication Critical patent/WO2021199388A1/ja
Anticipated expiration legal-status Critical
Priority to JP2024199513A priority patent/JP2025020419A/ja
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present disclosure relates to a terminal that executes wireless communication, particularly a terminal that executes wireless communication using a large number of component carriers.
  • the 3rd Generation Partnership Project (3GPP) specifies the 5th generation mobile communication system (also called 5G, New Radio (NR) or Next Generation (NG)), and next-generation specifications called Beyond 5G, 5G Evolution or 6G. We are also proceeding with the conversion.
  • 5G New Radio
  • NG Next Generation
  • Release 15 and Release 16 (NR) of 3GPP specify the operation of multiple frequency ranges, specifically, bands including FR1 (410MHz to 7.125GHz) and FR2 (24.25GHz to 52.6GHz). ..
  • Non-Patent Document 1 studies are underway on NR that supports up to 71 GHz beyond 52.6 GHz.
  • 5G Evolution or 6G aims to support frequency bands above 71GHz.
  • Carrier Aggregation stipulates the number of CCs that can be set. For example, in 3GPP Release 15 and Release 16, the maximum number of CCs that can be set for a terminal (User Equipment, UE) is 16 for downlink (DL) and uplink (UL), respectively.
  • the inventors can improve the flexibility of communication control using a plurality of CCs by paying attention to the assumption that the channel qualities of a large number of CCs are similar as a result of diligent studies. I found that.
  • the following disclosure was made in view of such a situation, and aims to provide a terminal capable of improving the flexibility of communication control when a large number of component carriers (CC) are set. do.
  • CC component carriers
  • One aspect of the present disclosure is a terminal comprising a communication unit that executes data communication via one or more component carriers, the communication unit being based on the setting of one or more physical uplink control channels.
  • the gist is to use one or more component carriers to perform predetermined transmission to transmit uplink control information to the network.
  • FIG. 1 is an overall schematic configuration diagram of the wireless communication system 10.
  • FIG. 2 is a diagram showing a frequency range used in the wireless communication system 10.
  • FIG. 3 is a diagram showing a configuration example of a wireless frame, a subframe, and a slot used in the wireless communication system 10.
  • FIG. 4 is a functional block configuration diagram of the UE 200.
  • FIG. 5 is a diagram for explaining the resource setting of PUCCH.
  • FIG. 6 is a diagram for explaining the resource setting of PUCCH.
  • FIG. 7 is a diagram for explaining the resource setting of PUCCH.
  • FIG. 8 is a diagram showing an operation example 1.
  • FIG. 9 is a diagram showing an operation example 2.
  • FIG. 10 is a diagram for explaining modification 1.
  • FIG. 11 is a diagram showing an example of the hardware configuration of the UE 200.
  • FIG. 1 is an overall schematic configuration diagram of the wireless communication system 10 according to the present embodiment.
  • the wireless communication system 10 is a wireless communication system according to 5G New Radio (NR), and includes a Next Generation-Radio Access Network 20 (hereinafter, NG-RAN20) and a terminal 200 (hereinafter, UE200).
  • NR 5G New Radio
  • NG-RAN20 Next Generation-Radio Access Network 20
  • UE200 terminal 200
  • the wireless communication system 10 may be a wireless communication system according to a method called Beyond 5G, 5G Evolution or 6G.
  • NG-RAN20 includes a radio base station 100A (hereinafter, gNB100A) and a radio base station 100B (hereinafter, gNB100B).
  • gNB100A radio base station 100A
  • gNB100B radio base station 100B
  • the specific configuration of the wireless communication system 10 including the number of gNBs and UEs is not limited to the example shown in FIG.
  • the NG-RAN20 actually includes multiple NG-RANNodes, specifically gNB (or ng-eNB), and is connected to a core network (5GC, not shown) according to 5G.
  • NG-RAN20 and 5GC may be simply expressed as "network”.
  • GNB100 and gNB100B are radio base stations that comply with 5G, and execute wireless communication according to UE200 and 5G.
  • the gNB100, gNB100B and UE200 are Massive MIMO (Multiple-Input Multiple-Output) and multiple component carriers (CC) that generate more directional beam BM by controlling radio signals transmitted from multiple antenna elements. ) Can be bundled and used for carrier aggregation (CA), and dual connectivity (DC) for simultaneous communication between the UE and each of the two NG-RAN Nodes.
  • Massive MIMO Multiple-Input Multiple-Output
  • CC component carriers
  • CA carrier aggregation
  • DC dual connectivity
  • the wireless communication system 10 supports a plurality of frequency ranges (FR).
  • FIG. 2 shows the frequency range used in the wireless communication system 10.
  • the wireless communication system 10 corresponds to FR1 and FR2.
  • the frequency bands of each FR are as follows.
  • FR1 410 MHz to 7.125 GHz
  • FR2 24.25 GHz to 52.6 GHz
  • SCS Sub-Carrier Spacing
  • BW bandwidth
  • FR2 has a higher frequency than FR1, SCS of 60, or 120kHz (240kHz may be included) is used, and a bandwidth (BW) of 50 to 400MHz may be used.
  • SCS may be interpreted as numerology. Numerology is defined in 3GPP TS38.300 and corresponds to one subcarrier spacing in the frequency domain.
  • the wireless communication system 10 also supports a higher frequency band than the FR2 frequency band. Specifically, the wireless communication system 10 corresponds to a frequency band exceeding 52.6 GHz and up to 114.25 GHz. Such a high frequency band may be referred to as "FR2x" for convenience.
  • Cyclic Prefix-Orthogonal Frequency Division Multiplexing CP-OFDM
  • DFT- Discrete Fourier Transform-Spread
  • SCS Sub-Carrier Spacing
  • FIG. 3 shows a configuration example of a wireless frame, a subframe, and a slot used in the wireless communication system 10.
  • one slot is composed of 14 symbols, and the larger (wider) the SCS, the shorter the symbol period (and slot period).
  • the SCS is not limited to the interval (frequency) shown in FIG. For example, 480kHz, 960kHz and the like may be used.
  • the number of symbols constituting one slot does not necessarily have to be 14 symbols (for example, 28, 56 symbols).
  • the number of slots per subframe may vary from SCS to SCS.
  • the time direction (t) shown in FIG. 3 may be referred to as a time domain, a symbol period, a symbol time, or the like.
  • the frequency direction may be referred to as a frequency domain, a resource block, a subcarrier, a BWP (Bandwidth part), or the like.
  • FIG. 4 is a functional block configuration diagram of the UE 200.
  • the UE 200 includes a radio signal transmission / reception unit 210, an amplifier unit 220, a modulation / demodulation unit 230, a control signal / reference signal processing unit 240, a coding / decoding unit 250, a data transmission / reception unit 260, and a control unit 270. ..
  • the wireless signal transmitter / receiver 210 transmits / receives a wireless signal according to NR.
  • the radio signal transmitter / receiver 210 corresponds to Massive MIMO, a CA that bundles a plurality of CCs, and a DC that simultaneously communicates between the UE and each of the two NG-RAN Nodes.
  • the amplifier unit 220 is composed of PA (Power Amplifier) / LNA (Low Noise Amplifier) and the like.
  • the amplifier unit 220 amplifies the signal output from the modulation / demodulation unit 230 to a predetermined power level. Further, the amplifier unit 220 amplifies the RF signal output from the radio signal transmission / reception unit 210.
  • the modulation / demodulation unit 230 executes data modulation / demodulation, transmission power setting, resource block allocation, etc. for each predetermined communication destination (gNB100 or other gNB).
  • Cyclic Prefix-Orthogonal Frequency Division Multiplexing (CP-OFDM) / Discrete Fourier Transform-Spread (DFT-S-OFDM) may be applied to the modulation / demodulation unit 230. Further, DFT-S-OFDM may be used not only for uplink (UL) but also for downlink (DL).
  • the control signal / reference signal processing unit 240 executes processing related to various control signals transmitted / received by the UE 200 and processing related to various reference signals transmitted / received by the UE 200.
  • control signal / reference signal processing unit 240 receives various control signals transmitted from the gNB 100 via a predetermined control channel, for example, control signals of the radio resource control layer (RRC). Further, the control signal / reference signal processing unit 240 transmits various control signals to the gNB 100 via a predetermined control channel.
  • a predetermined control channel for example, control signals of the radio resource control layer (RRC).
  • RRC radio resource control layer
  • the control signal / reference signal processing unit 240 executes processing using a reference signal (RS) such as Demodulation Reference Signal (DMRS) and Phase Tracking Reference Signal (PTRS).
  • RS reference signal
  • DMRS Demodulation Reference Signal
  • PTRS Phase Tracking Reference Signal
  • DMRS is a known reference signal (pilot signal) between the base station and the terminal of each terminal for estimating the fading channel used for data demodulation.
  • PTRS is a terminal-specific reference signal for the purpose of estimating phase noise, which is a problem in high frequency bands.
  • the reference signal may include ChannelStateInformation-ReferenceSignal (CSI-RS), SoundingReferenceSignal (SRS), and PositioningReferenceSignal (PRS) for position information.
  • CSI-RS ChannelStateInformation-ReferenceSignal
  • SRS SoundingReferenceSignal
  • PRS PositioningReferenceSignal
  • control channels include PDCCH (Physical Downlink Control Channel), PUCCH (Physical Uplink Control Channel), RACH (Random Access Channel), Random Access Radio Network Temporary Identifier (RA-RNTI), Downlink Control Information (DCI), and Physical Broadcast Channel (PBCH) etc. are included.
  • PDCCH Physical Downlink Control Channel
  • PUCCH Physical Uplink Control Channel
  • RACH Random Access Channel
  • RA-RNTI Random Access Radio Network Temporary Identifier
  • DCI Downlink Control Information
  • PBCH Physical Broadcast Channel
  • the data channels include PDSCH (Physical Downlink Shared Channel) and PUSCH (Physical Uplink Shared Channel).
  • Data means data transmitted over a data channel.
  • the data channel may be read as a shared channel.
  • the control signal / reference signal processing unit 240 constitutes a communication unit that executes data communication via one or more CCs.
  • the control signal / reference signal processing unit 240 uses one or more CCs to execute predetermined transmission for transmitting uplink control information (UCI: Uplink Control Information) to a network (for example, NG-RAN20).
  • the UCI may include an acknowledgment (HARQ-ACK) for one or more TBs.
  • the UCI may include an SR (Scheduling Request) that requests resource scheduling, or may include a CSI (Channel State Information) that indicates the state of the channel.
  • the UCI may be transmitted via a physical uplink control channel (PUCCH: Physical Uplink Control Channel) or may be transmitted via a physical uplink shared channel (PUSCH: Physical Uplink Shared Channel).
  • PUCCH Physical Uplink Control Channel
  • PUSCH Physical Uplink Shared Channel
  • the coding / decoding unit 250 executes data division / concatenation and channel coding / decoding for each predetermined communication destination (gNB100 or other gNB).
  • the coding / decoding unit 250 divides the data output from the data transmitting / receiving unit 260 into a predetermined size, and executes channel coding for the divided data. Further, the coding / decoding unit 250 decodes the data output from the modulation / demodulation unit 230 and concatenates the decoded data.
  • the data transmission / reception unit 260 executes transmission / reception of Protocol Data Unit (PDU) and Service Data Unit (SDU).
  • the data transmitter / receiver 260 is a PDU / SDU in a plurality of layers (such as a medium access control layer (MAC), a wireless link control layer (RLC), and a packet data convergence protocol layer (PDCP)). Assemble / disassemble.
  • the data transmission / reception unit 260 executes data error correction and retransmission control based on the hybrid ARQ (Hybrid automatic repeat request).
  • the control unit 270 controls each functional block constituting the UE 200.
  • the control unit 270 controls the communication of one or more CCs by using one or more DCIs received via a predetermined CC.
  • the predetermined CC may be one or more CCs included in the plurality of CCs. Communication of one or more CCs may include transmission of UCI using one or more CCs.
  • FIGS. 5 to 7 are diagrams showing PUCCH resource settings in a case where UCI is transmitted via PUCCH or PUSCH. 5 to 7 illustrate a case where UCI is transmitted via CC # 0 and CC # 1.
  • the resources used for PUCCH (hereinafter referred to as PUCCH resources) are set by the upper layer.
  • PUCCH resource is set by the information element contained in the RRC message. Such an information element may be referred to as PUCCH-Config.
  • PUCCH-Config. One or more PUCCH resource sets and one or more PUCCH resources are set, and one or more PUCCH resource sets include information elements that specify one or more PUCCH resources.
  • the upper layer parameter that sets the PUCCH resource for SR and CSI transmission may be set separately from the above PUCCH resource set. In this disclosure, PUCCH-Config. Or PUCCH resource may be replaced by PUCCH resource set.
  • PUCCH-Config. May be an information element capable of specifying a PUCCH resource that spans a plurality of CCs.
  • PUCCH-Config. One or more PUCCH resource sets may be set, and one or more PUCCH resource may be set.
  • Each PUCCH resource may be set for one or more CCs of a plurality of CCs, and a PUCCH resource straddling a plurality of CCs can be specified.
  • PUCCH-Config. May be a setting that targets the PUCCH resource of CC # 0, or may be a setting that targets the PUCCH resource of CC # 1.
  • a PUCCH straddles a plurality of CCs may mean that a certain PUCCH is mapped to a plurality of CCs, and may be transmitted or received via the plurality of CCs.
  • PUCCH-Config. May be an information element that cannot specify a PUCCH resource that spans a plurality of CCs.
  • PUCCH-Config. One or more PUCCH resource sets may be set, and one or more PUCCH resource may be set.
  • Each PUCCH resource may be set for any one CC of a plurality of CCs, and may not span a plurality of CCs.
  • the CC of any one of the plurality of CCs may be any CC or may be limited to a specific CC.
  • PUCCH-Config. Is a setting that targets the PUCCH resource of CC # 0.
  • PUCCH resource is not allowed to span multiple CCs, but in UCI transmission, PUCCH based on the PUCCH resource may span multiple CCs.
  • PUCCH based on the PUCCH resource may span multiple CCs.
  • UE200 and NG-RAN20 are based on one or more parameters selected from the UCI payload size, UCI coding rate, UCI modulation sequence, and Indication indicating transmission across multiple CCs. It may be decided whether or not to straddle a plurality of CCs.
  • PUCCH-Config. May be an information element that cannot specify a PUCCH resource that spans a plurality of CCs.
  • PUCCH-Config. One or more PUCCH resource sets may be set, and one or more PUCCH resource may be set.
  • Each PUCCH resource may be set for any one CC of a plurality of CCs, and may not span a plurality of CCs.
  • the CC of any one of the plurality of CCs may be any CC or may be limited to a specific CC.
  • PUCCH-Config. Is a setting that targets the PUCCH resource of CC # 0.
  • whether or not to apply PUCCH-Config. And / or PUCCH resource related to a plurality of CCs may be applied to UE200 by the information element included in the RRC message, and UE200 by the information element included in DCI. May be applied to.
  • the application may be referred to as enable or activate.
  • Non-application may be referred to as disable or inactivate.
  • two upper layer parameter groups may be set.
  • one upper layer parameter group is PUCCH-Config.
  • PUCCH-Config Related to a plurality of CCs, and may include a parameter that specifies a PUCCH resource in different CCs, and a parameter that specifies a PUCCH resource that spans a plurality of CCs. It may be included.
  • the other upper layer parameter group is PUCCH-Config. Associated with a single CC and may include parameters that specify PUCCH resources in a single CC (ie, similar to traditional PUCCH-Config.). ).
  • the plurality of CCs may be consecutive CCs in the intra-band.
  • the plurality of CCs may be CCs included in the scheduling cell or CCs included in the search space of PDCCH.
  • PDCCH search space is SI (System Information) -RNTI (Radio Network Temporary Identifier), RA (Random Access) -RNTI, TC (Temporary Cell) -RNTI, C (Cell) -RNTI, P (Paging) -RNTI, INT (Interruption) -RNTI, SFI (Slot Format Indication) -RNTI, TPC (Transmit Power Control) -PUSCH-RNTI, TPC-PUCCH-RNTI, TPC-SRS-RNTI, SP (Semi Persistent) -CSI (Channel State Information) )- May be defined by an RNTI such as RNTI.
  • the plurality of CCs may be CCs to which the serving cell settings are commonly applied. Serving cell settings may include
  • the UE 200 may receive an RRC message from the NG-RAN 20 containing an information element instructing the application of PUCCH-Config. And / or PUCCH resource related to a plurality of CCs.
  • the information elements that indicate the application of PUCCH-Config. And / or PUCCH resource related to multiple CCs are the identification information of the CC to which PUCCH-Config. And / or PUCCH resource is applied and the PUCCH-related to multiple CCs. It may include the fact that Config. And / or PUCCH resource is applied (for example, enable).
  • the UE 200 may receive an RRC message from the NG-RAN 20 containing an information element indicating the non-application of PUCCH-Config.
  • the information element that indicates the non-application of PUCCH-Config. And / or PUCCH resource related to multiple CCs is PUCCH-Config. And / or PUCCH-related to CCs to which PUCCH resource is not applied and multiple CCs. It may include the fact that Config. And / or PUCCH resource is not applied (for example, disable).
  • the above table elements that indicate the application or non-application of PUCCH-Config. And / or PUCCH resource are bitmap information that can specify CC by bit position, and each bit has multiple CCs corresponding to bit positions. It may be an information element indicating whether or not PUCCH-Config. And / or PUCCH resource related to is applicable.
  • UE200 may specify the CC to which PUCCH-Config. And / or PUCCH resource related to a plurality of CCs is applied based on the information element included in DCI. For example, UE200 identifies the CC to which PUCCH-Config. And / or PUCCH resource is applied based on the CI stored in the CI (Channel Indicator) field included in DCI. For example, in the case shown in FIG. 5, when CI is a value indicating CC # 0 and CC # 1, PUCCH-Config. And / or CC to which PUCCH resource is applied is CC # 0. And CC # 1.
  • CI Channel Indicator
  • PUCCH mapping may be executed for the Guard Subcarrier (s) between the two CCs.
  • Guard Subcarrier (s) between consecutive CCs may be used as a resource.
  • the Guard Subcarrier (s) between the two CCs may be Rate Matched. That is, PUCCH may not be mapped to Guard Subcarrier (s), but may be mapped in order beyond Guard Subcarrier (s).
  • TDD setting In the case where PUCCH-Config. Related to multiple CCs and / or PUCCH resource spanning multiple CCs can be applied, the TDD setting may be defined as follows.
  • the TDD setting is an example of an information element (upper layer parameter) of an RRC message, and may be called TDD UL / DL Common Configuration or TDD UL / DL Dedicated Configuration.
  • the TDD setting may be dictated by a particular DCI (eg SFI).
  • the symbol pattern (hereinafter, D / U Type) to which DL and UL are assigned in the time domain may be the same among a plurality of CCs.
  • the PUCCH that can be used may be limited to resources that span one or more CCs with the same D / U Type.
  • the existing control for mapping PUCCH to one CC may be executed.
  • mapping PUCCH to multiple CCs is n + 1 included in the time domain after mapping PUCCH to the frequency domain across multiple CCs in the nth unit included in the time domain.
  • PUCCH may be mapped to a frequency domain across multiple CCs (see, eg, FIG. 9).
  • the order of mapping PUCCH to multiple CCs is to map PUCCH to the frequency domain in the nth unit contained in the time domain in the mth CC, and then PUCCH in the n + 1th unit contained in the time domain. May be mapped to the frequency domain, and this may be repeated in the m + 1th CC.
  • UCI type may include types such as HARQ-ACK, SR, and CSI.
  • HARQ-ACK may be transmitted via CC # 0 and SR and CSI may be transmitted via CC # 1.
  • the frequency hopping may not be set. Moreover, even if FH is set, FH does not have to be applied.
  • the information element that sets FH is an example of the information element (upper layer parameter) included in the RRC message.
  • the PRB Index will be in a format that spans multiple CCs. It may be defined by.
  • the PRB Index included in CC # 0 and CC # 1 may be defined in a continuous format between CCs instead of being independent for each CC.
  • the PRB that initiates FH may be defined by the CC Index of the CC and the PRB Index within the CC.
  • Operation example (7.1) Operation example 1 As shown in FIG. 8, in step S10, the UE 100 receives an RRC message including PUCCH-Config. Related to a plurality of CCs from the NG-RAN 20.
  • the RRC message may include an information element indicating the application of PUCCH-Config. Related to multiple CCs (see FIG. 5).
  • step S11 the UE 200 receives one or more DCIs from the NG-RAN 20 via the PDCCH mapped to the predetermined CC.
  • step S12 the UE 200 receives data via the PDSCH mapped to one or more CCs based on the DCI received in step S11.
  • step S13 the UE 200 transmits data via PUCCH based on the DCI received in step S11.
  • the UE 200 transmits a UCI via a PUCCH that spans multiple CCs.
  • UCI may include HARQ-ACK for data received via PDSCH.
  • FIG. 8 illustrates a case where PUCCH-Config. Can specify one PUCCH resource that spans a plurality of CCs (see FIG. 5). However, as shown in FIG. 6, PUCCH-Config. May be an information element that cannot specify one PUCCH resource that spans a plurality of CCs.
  • step S20 the UE 100 receives an RRC message containing PUCCH-Config. Related to a plurality of CCs from the NG-RAN 20 (see FIG. 5).
  • the UE 200 receives one or more DCIs from the NG-RAN 20 via the PDCCH mapped to the predetermined CC.
  • UE200 may identify the CC to which PUCCH-Config. Related to multiple CCs is applied based on the information elements contained in DCI. For example, UE200 identifies the CC to which PUCCH-Config. Applies based on the CI stored in the CI field contained in DCI.
  • step S22 the UE 200 receives data via the PDSCH mapped to one or more CCs based on the DCI received in step S21.
  • step S23 the UE 200 transmits data via PUCCH based on the DCI received in step S21.
  • the UE 200 transmits a UCI via a PUCCH that spans multiple CCs.
  • UCI may include HARQ-ACK for data received via PDSCH.
  • FIG. 9 illustrates a case where PUCCH-Config. Can specify one PUCCH resource that spans a plurality of CCs (see FIG. 5). However, as shown in FIG. 6, PUCCH-Config. May be an information element that cannot specify one PUCCH resource that spans a plurality of CCs.
  • the UE 200 executes a predetermined transmission for transmitting the UCI to the network using one or a plurality of CCs. According to such a configuration, it is possible to improve the flexibility of communication control when a large number of CCs are set. In addition, it is possible to reduce the coding rate applied to UCI and to transmit UCI with an increased number of bits in a short time.
  • the UE 200 transmits an information element indicating whether or not it has the ability to execute a predetermined transmission to the network (NG-RAN20). Specifically, as shown in FIG. 10, in step S30, the UE 200 transmits (reports) a UE capability including an information element indicating whether or not it has the ability to execute a predetermined transmission to the NG-RAN 20.
  • UE200 may execute step S30 when an RRC connection is set with NG-RAN20.
  • step S30 may be executed before the process shown in FIG. 8 or 9.
  • the predetermined condition may be that a plurality of CCs are controlled based on one or more DCIs received via the predetermined CCs included in the plurality of CCs.
  • the predetermined condition may be to instruct that one or more DCIs received via the predetermined CC apply the predetermined transmission (first predetermined condition).
  • the predetermined transmission may be applied to a plurality of CCs used for receiving the DCI instructing that the predetermined transmission is applied.
  • the DCI may include an information element (enable) indicating that the predetermined transmission is applied.
  • the DCI may include an information element (disable) indicating that the predetermined transmission is not applied.
  • the plurality of CCs to which the predetermined transmission can be applied may be set by the RRC message or may be predetermined.
  • the predetermined condition may be that the RRC message indicates that the predetermined transmission is applied (second predetermined condition).
  • the RRC message may include an information element (enable) indicating that the predetermined transmission is applied.
  • the RRC message may include an information element (disable) indicating that the predetermined transmission is not applied.
  • the RRC message is bitmap information that can identify the CC by the bit position, and each bit may include an information element indicating whether or not a predetermined transmission is applied to the CC corresponding to the bit position.
  • the RRC message may include the identification information of the CC to which the predetermined transmission is applied.
  • the plurality of CCs to which the predetermined transmission can be applied may be set by the RRC message or may be predetermined.
  • the UE 200 determines whether or not a predetermined condition (for example, the second predetermined condition described above) is satisfied based on an RRC message including an information element indicating whether or not to apply the predetermined transmission. You may.
  • the UE 200 may determine whether or not the predetermined conditions are satisfied based on the RRC message and DCI. For example, the UE 200 may set a plurality of CCs to which the predetermined transmission can be applied by the RRC message, and specify the CC to which the predetermined transmission is applied based on the DCI from the set CCs.
  • the case where UCI is transmitted via PUCCH is illustrated.
  • the third modification a case where the UCI is transmitted via the PUSCH straddling a plurality of CCs will be described.
  • the case where the UCI is transmitted via the PUSCH across multiple CCs may be the case where the PUCCH to be used for UCI transmission collides with the PUSCH in the time domain and the UCI is multiplexed with the PUSCH. It may be the case instructed to send the UCI via.
  • the UCI may be mapped to and transmitted to a specific CC of the PUSCH.
  • the specific CC may be one CC.
  • the UCI may be mapped and transmitted across multiple CCs of the PUSCH.
  • the order of mapping UCI (RE of PUSCH used for UCI transmission) to multiple CCs may be considered in the same order as mapping PUCCH (UCI) to multiple CCs. That is, the order of mapping UCI to multiple CCs is the n + 1th unit included in the time domain after mapping UCI to the frequency domain across multiple CCs in the nth unit included in the time domain. The order may be such that UCI is mapped to a frequency domain across multiple CCs in units.
  • the order of mapping UCI to multiple CCs is to map UCI to the frequency domain in the nth unit contained in the time domain at the mth CC, and then UCI in the n + 1th unit contained in the time domain. May be mapped to the frequency domain, and this may be repeated in the m + 1th CC.
  • the number of REs in each CC of PUSCH used for UCI transmission may be limited to a predetermined number or less.
  • the PUSCH RE used for UCI transmission may be discretely mapped or locally mapped in the frequency domains contained in the plurality of CCs.
  • the first option and the second option may be switched by the upper layer parameter.
  • the first option and the second option may be switched by an RRC message containing an information element that specifies either the first option or the second option.
  • the first and second options are whether or not the PUCCH spans multiple CCs in the case where the PUCCH to be used to transmit the UCI collides with the PUSCH in the time domain and the UCI is multiplexed over the PUSCH. It may be switched based on. For example, if the PUCCH mapping across multiple CCs is not applied, the first option is adopted for PUSCH, and if the PUCCH mapping across multiple CCs is applied, PUSCH The second option may be adopted for.
  • the first option and the second option may be switched based on the UCI type.
  • UCI type may include types such as HARQ-ACK, SR, and CSI.
  • the first option may be applied for HARQ-ACK and the second option may be applied for SR and CSI.
  • different values may be set as the beta-offset applied to the UCI transmitted via PUSCH.
  • the beta-offset may be a value used to determine the UCI coding rate.
  • the UE 200 may apply a predetermined transmission of UCI across a plurality of CCs based on an information element used in MAC CE (Control Element).
  • the information element (upper layer parameter) included in the RRC message used in the case where the UCI is transmitted using a plurality of CCs is the case where the UCI is transmitted using one CC. It may be defined separately from the information element (upper layer parameter) included in the RRC message used.
  • the UCI when a plurality of CCs are included in one BWP, the UCI may be transmitted using the plurality of CCs.
  • the predetermined conditions described above may include the inclusion of a plurality of CCs in one BWP.
  • UCI has been mainly described, but the embodiment is not limited to this.
  • UCI may be read as HARQ-ACK, SR, or CSI.
  • the UCI that can be transmitted using multiple CCs may be any parameter selected from HARQ-ACK, SR and CSI.
  • each functional block is realized by any combination of at least one of hardware and software.
  • the method of realizing each functional block is not particularly limited. That is, each functional block may be realized by using one device that is physically or logically connected, or directly or indirectly (for example, by two or more devices that are physically or logically separated). , Wired, wireless, etc.) and may be realized using these plurality of devices.
  • the functional block may be realized by combining the software with the one device or the plurality of devices.
  • Functions include judgment, decision, judgment, calculation, calculation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, solution, selection, selection, establishment, comparison, assumption, expectation, and assumption. Broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc., but limited to these I can't.
  • a functional block that makes transmission function is called a transmitting unit (transmitting unit) or a transmitter (transmitter).
  • transmitting unit transmitting unit
  • transmitter transmitter
  • FIG. 11 is a diagram showing an example of the hardware configuration of the device.
  • the device may be configured as a computer device including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, and the like.
  • the word “device” can be read as a circuit, device, unit, etc.
  • the hardware configuration of the device may be configured to include one or more of the devices shown in the figure, or may be configured not to include some of the devices.
  • Each functional block of the device (see FIG. 4) is realized by any hardware element of the computer device or a combination of the hardware elements.
  • the processor 1001 performs an operation by loading predetermined software (program) on the hardware such as the processor 1001 and the memory 1002, and controls the communication by the communication device 1004, or the memory. It is realized by controlling at least one of reading and writing of data in 1002 and storage 1003.
  • predetermined software program
  • Processor 1001 operates, for example, an operating system to control the entire computer.
  • the processor 1001 may be composed of a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic unit, a register, and the like.
  • CPU central processing unit
  • the processor 1001 reads a program (program code), a software module, data, etc. from at least one of the storage 1003 and the communication device 1004 into the memory 1002, and executes various processes according to these.
  • a program program code
  • a program that causes a computer to execute at least a part of the operations described in the above-described embodiment is used.
  • the various processes described above may be executed by one processor 1001 or may be executed simultaneously or sequentially by two or more processors 1001.
  • Processor 1001 may be implemented by one or more chips.
  • the program may be transmitted from the network via a telecommunication line.
  • the memory 1002 is a computer-readable recording medium, and is composed of at least one such as ReadOnlyMemory (ROM), ErasableProgrammableROM (EPROM), Electrically ErasableProgrammableROM (EEPROM), and RandomAccessMemory (RAM). May be done.
  • the memory 1002 may be referred to as a register, a cache, a main memory (main storage device), or the like.
  • the memory 1002 can store a program (program code), a software module, or the like that can execute the method according to the embodiment of the present disclosure.
  • the storage 1003 is a computer-readable recording medium, for example, an optical disk such as Compact Disc ROM (CD-ROM), a hard disk drive, a flexible disk, an optical magnetic disk (for example, a compact disk, a digital versatile disk, or a Blu-ray). It may consist of at least one (registered trademark) disk), smart card, flash memory (eg, card, stick, key drive), floppy (registered trademark) disk, magnetic strip, and the like.
  • Storage 1003 may be referred to as auxiliary storage.
  • the recording medium described above may be, for example, a database, server or other suitable medium containing at least one of memory 1002 and storage 1003.
  • the communication device 1004 is hardware (transmission / reception device) for communicating between computers via at least one of a wired network and a wireless network, and is also referred to as, for example, a network device, a network controller, a network card, a communication module, or the like.
  • the communication device 1004 includes, for example, a high frequency switch, a duplexer, a filter, a frequency synthesizer, etc. in order to realize at least one of frequency division duplex (FDD) and time division duplex (TDD). It may be composed of.
  • FDD frequency division duplex
  • TDD time division duplex
  • the input device 1005 is an input device (for example, keyboard, mouse, microphone, switch, button, sensor, etc.) that accepts input from the outside.
  • the output device 1006 is an output device (for example, a display, a speaker, an LED lamp, etc.) that outputs to the outside.
  • the input device 1005 and the output device 1006 may have an integrated configuration (for example, a touch panel).
  • Bus 1007 may be configured using a single bus or may be configured using different buses for each device.
  • the device includes hardware such as a microprocessor, a digital signal processor (Digital Signal Processor: DSP), an Application Specific Integrated Circuit (ASIC), a Programmable Logic Device (PLD), and a Field Programmable Gate Array (FPGA).
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • PLD Programmable Logic Device
  • FPGA Field Programmable Gate Array
  • the hardware may realize a part or all of each functional block.
  • processor 1001 may be implemented using at least one of these hardware.
  • information notification includes physical layer signaling (for example, Downlink Control Information (DCI), Uplink Control Information (UCI), upper layer signaling (eg, RRC signaling, Medium Access Control (MAC) signaling, broadcast information (Master Information Block)). (MIB), System Information Block (SIB)), other signals or a combination thereof.
  • DCI Downlink Control Information
  • UCI Uplink Control Information
  • RRC signaling may also be referred to as an RRC message, for example, RRC Connection Setup. ) Message, RRC Connection Reconfiguration message, etc. may be used.
  • LTE LongTermEvolution
  • LTE-A LTE-Advanced
  • SUPER3G IMT-Advanced
  • 4G 4th generation mobile communication system
  • 5G 5th generation mobile communication system
  • FutureRadioAccess FAA
  • NewRadio NR
  • W-CDMA registered trademark
  • GSM registered trademark
  • CDMA2000 Code Division Multiple Access 2000
  • UMB UltraMobile Broadband
  • IEEE802.11 Wi-Fi (registered trademark)
  • IEEE802.16 WiMAX®
  • IEEE802.20 Ultra-WideBand (UWB), Bluetooth®, and other systems that utilize appropriate systems and at least one of the next-generation systems extended based on them.
  • a plurality of systems may be applied in combination (for example, a combination of at least one of LTE and LTE-A and 5G).
  • the specific operation performed by the base station in the present disclosure may be performed by its upper node.
  • various operations performed for communication with a terminal are performed by the base station and other network nodes other than the base station (for example, MME or). It is clear that it can be done by at least one of (but not limited to, S-GW, etc.).
  • S-GW network node
  • the case where there is one network node other than the base station is illustrated above, it may be a combination of a plurality of other network nodes (for example, MME and S-GW).
  • Information and signals can be output from the upper layer (or lower layer) to the lower layer (or upper layer).
  • Input / output may be performed via a plurality of network nodes.
  • the input / output information may be stored in a specific location (for example, memory) or may be managed using a management table.
  • the input / output information can be overwritten, updated, or added.
  • the output information may be deleted.
  • the input information may be transmitted to another device.
  • the determination may be made by a value represented by 1 bit (0 or 1), by a boolean value (Boolean: true or false), or by comparing numerical values (for example, a predetermined value). It may be done by comparison with the value).
  • the notification of predetermined information (for example, the notification of "being X") is not limited to the explicit one, but is performed implicitly (for example, the notification of the predetermined information is not performed). May be good.
  • Software whether referred to as software, firmware, middleware, microcode, hardware description language, or other names, is an instruction, instruction set, code, code segment, program code, program, subprogram, software module.
  • Applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, procedures, functions, etc. should be broadly interpreted.
  • software, instructions, information, etc. may be transmitted and received via a transmission medium.
  • a transmission medium For example, a website, where the software uses at least one of wired technology (coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), etc.) and wireless technology (infrared, microwave, etc.).
  • wired technology coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), etc.
  • wireless technology infrared, microwave, etc.
  • the information, signals, etc. described in this disclosure may be represented using any of a variety of different techniques.
  • data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be referred to throughout the above description are voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any of these. It may be represented by a combination of.
  • a channel and a symbol may be a signal (signaling).
  • the signal may be a message.
  • the component carrier (CC) may be referred to as a carrier frequency, a cell, a frequency carrier, or the like.
  • system and “network” used in this disclosure are used interchangeably.
  • the information, parameters, etc. described in the present disclosure may be expressed using absolute values, relative values from predetermined values, or using other corresponding information. It may be represented.
  • the radio resource may be one indicated by an index.
  • Base Station BS
  • Wireless Base Station Wireless Base Station
  • NodeB NodeB
  • eNodeB eNodeB
  • gNodeB gNodeB
  • Base stations are sometimes referred to by terms such as macrocells, small cells, femtocells, and picocells.
  • the base station can accommodate one or more (for example, three) cells (also called sectors). When a base station accommodates multiple cells, the entire coverage area of the base station can be divided into multiple smaller areas, each smaller area being a base station subsystem (eg, a small indoor base station (Remote Radio)). Communication services can also be provided by Head: RRH).
  • a base station subsystem eg, a small indoor base station (Remote Radio)
  • Communication services can also be provided by Head: RRH).
  • cell refers to a part or all of a base station that provides communication services in this coverage and at least one of the coverage areas of a base station subsystem.
  • MS mobile station
  • UE user equipment
  • terminal terminal
  • Mobile stations can be used by those skilled in the art as subscriber stations, mobile units, subscriber units, wireless units, remote units, mobile devices, wireless devices, wireless communication devices, remote devices, mobile subscriber stations, access terminals, mobile terminals, wireless. It may also be referred to as a terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable term.
  • At least one of the base station and the mobile station may be called a transmitting device, a receiving device, a communication device, or the like. At least one of the base station and the mobile station may be a device mounted on the mobile body, the mobile body itself, or the like.
  • the moving body may be a vehicle (for example, a car, an airplane, etc.), an unmanned moving body (for example, a drone, an autonomous vehicle, etc.), or a robot (manned or unmanned type). ) May be.
  • at least one of the base station and the mobile station includes a device that does not necessarily move during communication operation.
  • at least one of a base station and a mobile station may be an Internet of Things (IoT) device such as a sensor.
  • IoT Internet of Things
  • the base station in the present disclosure may be read as a mobile station (user terminal, the same applies hereinafter).
  • communication between a base station and a mobile station has been replaced with communication between a plurality of mobile stations (for example, it may be called Device-to-Device (D2D), Vehicle-to-Everything (V2X), etc.).
  • D2D Device-to-Device
  • V2X Vehicle-to-Everything
  • Each aspect / embodiment of the present disclosure may be applied to the configuration.
  • the mobile station may have the functions of the base station.
  • words such as "up” and “down” may be read as words corresponding to communication between terminals (for example, "side”).
  • the upstream channel, the downstream channel, and the like may be read as a side channel.
  • the mobile station in the present disclosure may be read as a base station.
  • the base station may have the functions of the mobile station.
  • the wireless frame may be composed of one or more frames in the time domain. Each one or more frames in the time domain may be referred to as a subframe.
  • the subframe may be further composed of one or more slots in the time domain.
  • the subframe may have a fixed time length (eg, 1 ms) that is independent of numerology.
  • the numerology may be a communication parameter that applies to at least one of the transmission and reception of a signal or channel.
  • Numerology includes, for example, SubCarrier Spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), number of symbols per TTI, wireless frame configuration, transmission / reception.
  • SCS SubCarrier Spacing
  • TTI transmission time interval
  • At least one of a specific filtering process performed by the machine in the frequency domain, a specific windowing process performed by the transmitter / receiver in the time domain, and the like may be indicated.
  • the slot may be composed of one or more symbols (Orthogonal Frequency Division Multiplexing (OFDM) symbol, Single Carrier Frequency Division Multiple Access (SC-FDMA) symbol, etc.) in the time domain. Slots may be in numerology-based time units.
  • OFDM Orthogonal Frequency Division Multiplexing
  • SC-FDMA Single Carrier Frequency Division Multiple Access
  • the slot may include a plurality of mini slots. Each minislot may consist of one or more symbols in the time domain. Further, the mini slot may be referred to as a sub slot. A minislot may consist of a smaller number of symbols than the slot.
  • PDSCH (or PUSCH) transmitted in time units larger than the minislot may be referred to as PDSCH (or PUSCH) mapping type A.
  • the PDSCH (or PUSCH) transmitted using the minislot may be referred to as PDSCH (or PUSCH) mapping type B.
  • the wireless frame, subframe, slot, minislot and symbol all represent the time unit when transmitting a signal.
  • the radio frame, subframe, slot, minislot and symbol may have different names corresponding to each.
  • one subframe may be referred to as a transmission time interval (TTI)
  • TTI transmission time interval
  • TTI transmission time interval
  • TTI transmission time interval
  • TTI transmission time interval
  • TTI transmission time interval
  • TTI transmission time interval
  • TTI slot or one minislot
  • at least one of the subframe and TTI may be a subframe (1ms) in existing LTE, a period shorter than 1ms (eg, 1-13 symbols), or a period longer than 1ms. It may be.
  • the unit representing TTI may be called a slot, a mini slot, or the like instead of a subframe.
  • TTI refers to, for example, the minimum time unit of scheduling in wireless communication.
  • a base station schedules each user terminal to allocate radio resources (frequency bandwidth that can be used in each user terminal, transmission power, etc.) in TTI units.
  • the definition of TTI is not limited to this.
  • the TTI may be a transmission time unit such as a channel-encoded data packet (transport block), a code block, or a code word, or may be a processing unit such as scheduling or link adaptation.
  • the time interval for example, the number of symbols
  • the transport block, code block, code word, etc. may be shorter than the TTI.
  • one or more TTIs may be the minimum time unit for scheduling. Further, the number of slots (number of mini-slots) constituting the minimum time unit of the scheduling may be controlled.
  • a TTI having a time length of 1 ms may be called a normal TTI (TTI in LTE Rel.8-12), a normal TTI, a long TTI, a normal subframe, a normal subframe, a long subframe, a slot, or the like.
  • TTIs shorter than normal TTIs may be referred to as shortened TTIs, short TTIs, partial TTIs (partial or fractional TTIs), shortened subframes, short subframes, minislots, subslots, slots, and the like.
  • the long TTI (for example, normal TTI, subframe, etc.) may be read as a TTI having a time length of more than 1 ms
  • the short TTI (for example, shortened TTI, etc.) may be read as less than the TTI length of the long TTI and 1 ms. It may be read as a TTI having the above TTI length.
  • the resource block (RB) is a resource allocation unit in the time domain and the frequency domain, and may include one or a plurality of continuous subcarriers in the frequency domain.
  • the number of subcarriers contained in RB may be the same regardless of numerology, and may be, for example, 12.
  • the number of subcarriers contained in the RB may be determined based on numerology.
  • the time domain of RB may include one or more symbols, and may have a length of 1 slot, 1 mini slot, 1 subframe, or 1 TTI.
  • Each 1TTI, 1 subframe, etc. may be composed of one or a plurality of resource blocks.
  • One or more RBs include a physical resource block (Physical RB: PRB), a sub-carrier group (Sub-Carrier Group: SCG), a resource element group (Resource Element Group: REG), a PRB pair, an RB pair, and the like. May be called.
  • Physical RB Physical RB: PRB
  • SCG sub-carrier Group
  • REG resource element group
  • PRB pair an RB pair, and the like. May be called.
  • the resource block may be composed of one or a plurality of resource elements (ResourceElement: RE).
  • RE resource elements
  • 1RE may be a radio resource area of 1 subcarrier and 1 symbol.
  • Bandwidth Part (which may also be called partial bandwidth, etc.) may represent a subset of consecutive common RBs (common resource blocks) for a neurology in a carrier. good.
  • the common RB may be specified by the index of the RB with respect to the common reference point of the carrier.
  • PRBs may be defined in a BWP and numbered within that BWP.
  • BWP may include BWP for UL (UL BWP) and BWP for DL (DL BWP).
  • BWP for UL
  • DL BWP BWP for DL
  • One or more BWPs may be set in one carrier for the UE.
  • At least one of the configured BWPs may be active, and the UE may not expect to send or receive a given signal / channel outside the active BWP.
  • “cell”, “carrier” and the like in this disclosure may be read as “BWP”.
  • the above-mentioned structures such as wireless frames, subframes, slots, minislots and symbols are merely examples.
  • the number of subframes contained in a wireless frame the number of slots per subframe or wireless frame, the number of minislots contained within a slot, the number of symbols and RBs contained in a slot or minislot, and the number of RBs.
  • the number of subcarriers, the number of symbols in the TTI, the symbol length, the cyclic prefix (CP) length, and other configurations can be changed in various ways.
  • connection means any direct or indirect connection or connection between two or more elements, and each other. It can include the presence of one or more intermediate elements between two “connected” or “combined” elements.
  • the connections or connections between the elements may be physical, logical, or a combination thereof. For example, “connection” may be read as "access”.
  • the two elements use at least one of one or more wires, cables and printed electrical connections, and, as some non-limiting and non-comprehensive examples, the radio frequency domain. Can be considered to be “connected” or “coupled” to each other using electromagnetic energy having wavelengths in the microwave and light (both visible and invisible) regions.
  • the reference signal may also be abbreviated as Reference Signal (RS) and may be referred to as the Pilot depending on the applied standard.
  • RS Reference Signal
  • references to elements using designations such as “first” and “second” as used in this disclosure does not generally limit the quantity or order of those elements. These designations can be used in the present disclosure as a convenient way to distinguish between two or more elements. Thus, references to the first and second elements do not mean that only two elements can be adopted there, or that the first element must somehow precede the second element.
  • determining and “determining” used in this disclosure may include a wide variety of actions.
  • “Judgment” and “decision” are, for example, judgment (judging), calculation (calculating), calculation (computing), processing (processing), derivation (deriving), investigation (investigating), search (looking up, search, inquiry). (For example, searching in a table, database or another data structure), ascertaining may be regarded as “judgment” or “decision”.
  • judgment and “decision” are receiving (for example, receiving information), transmitting (for example, transmitting information), input (input), output (output), and access.
  • Accessing (for example, accessing data in memory) may be regarded as "judgment” or “decision”.
  • judgment and “decision” mean that the things such as solving, selecting, choosing, establishing, and comparing are regarded as “judgment” and “decision”. Can include. That is, “judgment” and “decision” may include considering some action as “judgment” and “decision”. Further, “judgment (decision)” may be read as “assuming”, “expecting”, “considering” and the like.
  • the term "A and B are different” may mean “A and B are different from each other”.
  • the term may mean that "A and B are different from C”.
  • Terms such as “separate” and “combined” may be interpreted in the same way as “different”.
  • Radio communication system 20 NG-RAN 100 gNB 200 UE 210 Radio signal transmission / reception unit 220 Amplifier unit 230 Modulation / demodulation unit 240 Control signal / reference signal processing unit 250 Coding / decoding unit 260 Data transmission / reception unit 270 Control unit 1001 Processor 1002 Memory 1003 Storage 1004 Communication device 1005 Input device 1006 Output device 1007 Bus

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
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JP2013526216A (ja) * 2010-04-30 2013-06-20 リサーチ イン モーション リミテッド キャリアアグリゲーションにおけるアップリンク制御情報伝送のためのシステムおよび方法
JP2019071649A (ja) * 2014-10-07 2019-05-09 クゥアルコム・インコーポレイテッドＱｕａｌｃｏｍｍ Ｉｎｃｏｒｐｏｒａｔｅｄ コンポーネントキャリアに関するアップリンク制御情報を送信するための技法
WO2020059150A1 (ja) * 2018-09-21 2020-03-26 株式会社Ｎｔｔドコモ ユーザ端末及び無線通信方法

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JP2019071649A (ja) * 2014-10-07 2019-05-09 クゥアルコム・インコーポレイテッドＱｕａｌｃｏｍｍ Ｉｎｃｏｒｐｏｒａｔｅｄ コンポーネントキャリアに関するアップリンク制御情報を送信するための技法
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