WO2021234949A1 - Terminal, procédé de communication sans fil, et station de base - Google Patents

Terminal, procédé de communication sans fil, et station de base Download PDF

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Publication number
WO2021234949A1
WO2021234949A1 PCT/JP2020/020314 JP2020020314W WO2021234949A1 WO 2021234949 A1 WO2021234949 A1 WO 2021234949A1 JP 2020020314 W JP2020020314 W JP 2020020314W WO 2021234949 A1 WO2021234949 A1 WO 2021234949A1
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Prior art keywords
transmission
priority
pusch
resource
base station
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PCT/JP2020/020314
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English (en)
Japanese (ja)
Inventor
優元 ▲高▼橋
聡 永田
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株式会社Ｎｔｔドコモ
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Priority to PCT/JP2020/020314 priority Critical patent/WO2021234949A1/fr
Publication of WO2021234949A1 publication Critical patent/WO2021234949A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria

Definitions

  • This disclosure relates to terminals, wireless communication methods and base stations in next-generation mobile communication systems.
  • LTE Long Term Evolution
  • UMTS Universal Mobile Telecommunications System
  • 3GPP Rel.10-14 LTE-Advanced (3GPP Rel.10-14) has been specified for the purpose of further increasing the capacity and sophistication of LTE (Third Generation Partnership Project (3GPP) Release (Rel.) 8, 9).
  • a successor system to LTE for example, 5th generation mobile communication system (5G), 5G + (plus), New Radio (NR), 3GPP Rel.15 or later, etc.) is also being considered.
  • 5G 5th generation mobile communication system
  • 5G + plus
  • NR New Radio
  • 3GPP Rel.15 or later, etc. is also being considered.
  • future wireless communication systems for example, 5G, NR, etc.
  • high speed and large capacity for example, enhanced Mobile Broad Band (eMBB)
  • ultra-many terminals for example, massive Machine Type Communication (mTMTC), Internet of Things).
  • IoT ultra-high reliability and low latency
  • URLLC Ultra Reliable and Low Latency Communications
  • multiple services also referred to as use cases, communication types, etc.
  • UL transmissions will be canceled (also referred to as cancellation, preemption, interruption, cancellation, interruption, interruption, etc.) in order to reduce delays and / or meet communication requirements for reliability. Will be done. How to control when canceling UL transmission has not been fully considered.
  • one of the purposes of the present disclosure is to provide a terminal, a wireless communication method, and a base station capable of appropriately performing UL transmission even when the UL transmission canceling operation is supported.
  • the terminal includes a receiving unit that receives downlink control information including information about a resource for canceling UL transmission, and the resource in the time domain of UL transmission that is canceled based on the downlink control information. It has a control unit that controls other UL transmissions to which a schedule for a non-overlapping time domain is allowed, and the other UL transmissions have at least the presence / absence of a certain upper layer parameter setting and the priority of the other UL transmissions. It is characterized by being determined based on one.
  • UL transmission can be appropriately performed even when the UL transmission cancel operation is supported.
  • FIG. 1 is a diagram showing an example of a case where a plurality of PUSCH transmissions overlap.
  • FIG. 2 is a diagram showing an example of a case where PUSCH transmission is canceled by a UL cancel instruction.
  • FIG. 3 is a diagram showing an example of overlapping PUSCH transmissions and a cancel resource designated by a UL cancel instruction.
  • FIG. 4 is a diagram showing an example of UL transmission control according to the first aspect.
  • FIG. 5 is a diagram showing an example of UL transmission control according to the second aspect.
  • FIG. 6 is a diagram showing another example of UL transmission control according to the second aspect.
  • FIG. 7 is a diagram showing another example of UL transmission control according to the second aspect.
  • FIG. 1 is a diagram showing an example of a case where a plurality of PUSCH transmissions overlap.
  • FIG. 2 is a diagram showing an example of a case where PUSCH transmission is canceled by a UL cancel instruction.
  • FIG. 3 is a
  • FIG. 8 is a diagram showing another example of UL transmission control according to the second aspect.
  • FIG. 9 is a diagram showing an example of a schematic configuration of a wireless communication system according to an embodiment.
  • FIG. 10 is a diagram showing an example of the configuration of a base station according to an embodiment.
  • FIG. 11 is a diagram showing an example of the configuration of the user terminal according to the embodiment.
  • FIG. 12 is a diagram showing an example of the hardware configuration of the base station and the user terminal according to the embodiment.
  • ⁇ Traffic type> In future wireless communication systems (eg, NR), further advancement of mobile broadband (eg enhanced Mobile Broadband (eMBB)), machine type communication that realizes multiple simultaneous connections (eg massive Machine Type Communications (mMTC), Internet) Assumed traffic types (also referred to as services, service types, communication types, use cases, etc.) such as of Things (IoT)), high reliability and low latency communication (eg Ultra-Reliable and Low-Latency Communications (URLLC)) Will be done. For example, URLLC requires less delay and higher reliability than eMBB.
  • eMBB enhanced Mobile Broadband
  • mMTC massive Machine Type Communications
  • URLLC Ultra-Reliable and Low-Latency Communications
  • the traffic type may be identified at the physical layer based on at least one of the following: -Logical channels with different priorities-Modulation and Coding Scheme (MCS) table (MCS index table) -Channel Quality Indication (CQI) table-DCI format-Used for scramble (mask) of Cyclic Redundancy Check (CRC) bits included (added) in the DCI (DCI format).
  • MCS Modulation and Coding Scheme
  • CQI Channel Quality Indication
  • CRC Cyclic Redundancy Check
  • the HARQ-ACK traffic type for PDSCH may be determined based on at least one of the following: An MCS index table (eg, MCS index table 3) used to determine at least one of the PDSCH modulation order, target code rate, and transport block size (TBS).
  • An MCS index table eg, MCS index table 3
  • TBS transport block size
  • RNTI used for CRC scrambling of DCI used for scheduling the PDSCH (for example, whether CRC scrambled by C-RNTI or MCS-C-RNTI).
  • the SR traffic type may be determined based on the upper layer parameter used as the SR identifier (SR-ID).
  • the upper layer parameter may indicate whether the SR traffic type is eMBB or URLLC.
  • the CSI traffic type may be determined based on the configuration information (CSIreportSetting) related to the CSI report, the DCI type used for the trigger, the DCI transmission parameter, and the like.
  • the setting information, DCI type, etc. may indicate whether the traffic type of the CSI is eMBB or URLLC. Further, the setting information may be an upper layer parameter.
  • the traffic type of PUSCH may be determined based on at least one of the following.
  • -The MCS index table used to determine at least one of the modulation order, target coding rate, and TBS of the PUSCH for example, whether or not to use the MCS index table 3.
  • RNTI used for CRC scrambling of DCI used for scheduling the PUSCH for example, whether CRC scrambled by C-RNTI or MCS-C-RNTI).
  • the traffic type may be associated with communication requirements (requirements such as delay and error rate, requirement conditions), data type (voice, data, etc.) and the like.
  • the difference between the URLLC requirement and the eMBB requirement may be that the URLLC latency is smaller than the eMBB delay, or the URLLC requirement may include a reliability requirement.
  • the eMBB user (U) plane delay requirement may include that the downlink U-plane delay is 4 ms and the uplink U-plane delay is 4 ms.
  • the URLLC U-plane delay requirement may include that the downlink U-plane delay is 0.5 ms and the uplink U-plane delay is 0.5 ms.
  • the reliability requirement of URLLC may include a 32-byte error rate of 10-5 at a U-plane delay of 1 ms.
  • NR ⁇ Priority setting> Rel.
  • a plurality of levels for example, 2 levels
  • communication is controlled by setting different priorities for each signal or channel corresponding to different traffic types (also referred to as service, service type, communication type, use case, etc.) (for example, transmission control in the event of a collision). Is expected to be done. This makes it possible to control communication by setting different priorities for the same signal or channel according to the service type and the like.
  • the priority may be set for a signal (for example, UCI such as HARQ-ACK, a reference signal, etc.), a channel (PDSCH, PUSCH, etc.), a HARQ-ACK codebook, or the like.
  • the priority may be defined by a first priority (for example, High) and a second priority (for example, Low) having a lower priority than the first priority.
  • a first priority for example, High
  • a second priority for example, Low
  • three or more types of priorities may be set.
  • Information about the priority may be notified from the base station to the UE using at least one of higher layer signaling and DCI.
  • priorities may be set for the dynamically scheduled HARQ-ACK for PDSCH, HARQ-ACK for semi-persistent PDSCH (SPS PDSCH), and HARQ-ACK for SPS PDSCH release.
  • a priority may be set for the HARQ-ACK codebook corresponding to these HARQ-ACKs.
  • the priority of the PDSCH may be read as the priority of HARQ-ACK for the PDSCH.
  • the priority may be set for the dynamic grant-based PUSCH, the setting grant-based PUSCH, and the like.
  • the UE may control UL transmission based on priority when different UL signals / UL channels collide. For example, UL transmission having a high priority may be performed, and UL transmission having a low priority may not be performed (for example, dropping). Alternatively, the transmission timing of the UL transmission having a low priority may be changed (for example, postponed or shifted).
  • Collision of different UL signals / UL channels means that the time resources (or time resources and frequency resources) of different UL signals / UL channels overlap, or the transmission timings of different UL signals / UL channels overlap. May be.
  • a time resource may be read as a time domain or a time domain.
  • Collision of different UL signals / UL channels in the same UE may mean that different UL signals / UL channels overlap at least in the same time resource (eg, symbol). ..
  • a collision of different UL signals / UL channels in different UEs means that different UL signals / UL channels are overloaded in the same time resource (eg, symbol) and frequency resource (eg, RB). It may mean to wrap.
  • PUSCH # 1 scheduled by the first UL grant (UL grant # 1) and PUSCH # 2 scheduled by the second UL grant (UL grant # 2) are in time. Configurations that overlap in regions (see, eg, FIG. 1) are not supported.
  • the schedule is controlled so that UL channels / signals using the same resource (for example, the same time and frequency resource) are not performed between different UEs.
  • the same resource for example, the same time and frequency resource
  • the UL channel / signal eg, PUSCH
  • the UL channel / signal is canceled and another UL channel / signal is added to the resource of the canceled UL channel / signal. It is conceivable to schedule a signal.
  • UL cancellation indications are being considered to support UL inter-UE multiplexing (UL inter-UE multiplexing) for UL transmission.
  • the UL cancellation instruction may be referred to as a UL cancellation instruction.
  • the UL cancel instruction enables UL transmission (for example, URLLC UL transmission) of another UE by canceling the UL transmission scheduled / set for one UE (for example, eMBB UL transmission) (for example, URLLC UL transmission).
  • eMBB UL transmission for example, URLLC UL transmission
  • FIG. 2 shows a UL cancel instruction when the eMBB UL transmission scheduled for UE # 1 (for example, PUSCH # 1) and the UL transmission scheduled for URLLC UE # 2 (for example, PUSCH # 2) overlap.
  • An example of canceling PUSCH # 1 by using is shown.
  • the UL cancellation instruction may specify at least a resource (for example, a frequency resource (PRB) and a time resource (symbol)) for which a predetermined UL transmission is canceled.
  • a resource for example, a frequency resource (PRB) and a time resource (symbol)
  • PRB frequency resource
  • symbol time resource
  • UE # 1 when UE # 1 detects a UL cancel instruction, the UE # 1 cancels (cancels or cancels) UL transmission. Canceling a UL transmission may be read as preempting a UL transmission, preempting a UL transmission, replacing the UL transmission, and the like.
  • the UL cancel instruction may interrupt / postpone the scheduled UL transmission to the UE that has received the UL cancel instruction.
  • the UL cancel instruction may also be used by the UE receiving the UL cancel instruction to notify a resource that the UE assumes that any transmission of the UE is not intended.
  • At least group common (GC) -downstream control information (DCI, physical downlink control channel (PDCCH)) may be supported for the cancellation instruction.
  • DCI group common
  • PDCCH physical downlink control channel
  • a predetermined DCI format (for example, DCI format 2_4) may be used for the DCI.
  • one or more UEs may be notified of information about a frequency resource (for example, PRB) and a time resource (for example, a symbol) for canceling UL transmission by a predetermined DCI format.
  • a frequency resource for example, PRB
  • a time resource for example, a symbol
  • UE-specific DCI for UL cancellation instructions may be supported.
  • the UL transmission to which the UL cancellation instruction (for example, UL Cl) notified by DCI is applied may be determined based on the presence / absence of setting of the upper layer parameter / the priority set for the UL transmission.
  • a UL cancel instruction for example, UL Cl
  • a priority instruction for example, intra-UE priority indicator
  • a predetermined upper layer parameter for example, applicabilityforCI
  • the UE may apply the UL cancel instruction only to UL transmissions having a lower priority (for example, a second priority (low) is set). ..
  • a predetermined upper layer parameter when a predetermined upper layer parameter is set, the UE does not have to apply the UL cancel instruction to the UL transmission having a high priority (for example, a first priority (high) is set). ..
  • the UE may apply the UL cancel instruction regardless of the priority of UL transmission.
  • UL transmission for example, priority, etc.
  • UL cancellation instruction may be set / notified to the UE by a predetermined upper layer parameter.
  • the UE may cancel the entire UL transmission.
  • a resource that does not overlap with the predetermined resource specified by the UL cancellation instruction (for example, the non-overlapping area in FIG. 2) is not used for UL transmission.
  • At least the predetermined resource specified in the UL cancellation instruction is controlled not to be used for UL transmission, and if a non-overlap area is generated due to the cancellation of UL transmission, the non-overlap area is concerned. Can be used for UL transmission.
  • the problem is how to control the UL transmission schedule in the non-overlapping area.
  • the present inventors overlap the resource area notified by the UL cancellation instruction in the resource area (for example, the time domain (symbol)) of the UL transmission to be canceled. Focusing on the fact that there are cases where a non-overlapping region occurs, UL transmission control in a non-overlapping region was examined, and one aspect (first aspect) of the present embodiment was conceived.
  • the UE fails to receive the DCI including the UL cancel instruction (for example, detection / decoding). Conceivable. If none of the overlapping and scheduled UL transmissions are canceled, the UL transmissions may not be performed properly (see FIG. 3).
  • a UL cancel instruction for example, UL CI
  • PUSCH # 1 and PUSCH # 2 may be transmitted in duplicate and may not be properly received on the network side.
  • the present inventors have focused on the fact that there are cases where the UE cannot appropriately detect / decode the UL cancellation instruction when the configuration of canceling the UL transmission based on the UL cancellation instruction is supported, and the UL in such a case.
  • the transmission control was examined, and another aspect (second aspect) of the present embodiment was conceived.
  • a / B may be read as at least one of A and B
  • a / B / C may be read as at least one of A, B and C.
  • PUSCH will be described as an example of UL transmission, but it may be applied to other UL channels / signals (for example, sounding reference signal (SRS), etc.).
  • SRS sounding reference signal
  • a schedule is provided for a time area (for example, a non-overlap area) that does not overlap with the resource area notified by the UL cancel instruction.
  • a time area for example, a non-overlap area
  • the time domain for example, a symbol
  • the resource domain is not limited to this.
  • a schedule to a non-overlapping area (or cancellation symbol) that does not overlap with the resource area notified by the UL cancellation instruction may be allowed.
  • other UL transmissions whose schedule is allowed for the non-overlapping area have a predetermined upper layer parameter set or not (or notification is present or not), and the priority applied / set to other UL transmissions. It may be determined based on.
  • UL transmissions that are allowed to be scheduled to non-overlapping areas may be determined at least based on the setting / notification presence / absence of predetermined higher layer parameters.
  • a given higher layer parameter is set / notified to the UE, other UL transmissions that allow scheduling to non-overlapping areas will have a first priority (eg, high) applied / set. It may be UL transmission (see FIG. 4). In this case, the UL transmission to which the second priority (for example, low) is applied / set may be configured so that the schedule to the non-overlapping area is not allowed.
  • a first priority eg, high
  • the UL transmission to which the second priority for example, low
  • the second priority for example, low
  • the UE determines that UL transmission to which the first priority (eg, high) is applied / set to the non-overlapping area can be scheduled when a predetermined upper layer parameter is set / notified. good.
  • the UE may determine that UL transmissions to which a priority of 2 (eg, low) is applied / set to non-overlapping areas are not scheduled when certain higher layer parameters are set / notified. good.
  • the predetermined upper layer parameter may be an upper layer parameter (for example, applicabilityforCI) used for notifying information regarding the application of the UL cancellation instruction notified by DCI (for example, UL CI).
  • an upper layer parameter for example, applicabilityforCI
  • the UE applies the UL cancel instruction to the UL transmission having the second priority (for example, low), and the UL transmission having the first priority (for example, high). It may be controlled not to apply the UL cancel instruction to.
  • the transmission is canceled.
  • the other UL of the first priority with respect to the non-overlapping area included in the resource of the UL transmission of the second priority.
  • the transmission schedule is allowed, and the UL transmission schedule of the second priority is not allowed.
  • the first priority is set by configuring the resource (non-overlapping area) of the second priority UL transmission in which the transmission is canceled so that it can be used only for other UL transmissions having the first priority. You can increase the resources available for other UL transmissions you have.
  • the UE determines that at least one of the first priority UL transmission and the second priority UL transmission can be scheduled for the non-overlapping area if the predetermined higher layer parameter is not set / notified. You may.
  • resources in the non-overlapping area can be used for the UL transmission of the first priority and the UL transmission of the second priority, so that the flexibility of scheduling can be improved.
  • other UL transmissions to which the schedule to the non-overlap area is allowed may be UL transmissions having the same conditions as the conditions (for example, priority) applied / set to the UL transmissions to be canceled.
  • the UL transmission to which the schedule to the non-overlap region is allowed may be the UL transmission having the first priority. ..
  • UL transmissions that are allowed to be scheduled to non-overlapping areas may be determined regardless of the setting / notification of predetermined higher layer parameters.
  • other UL transmissions scheduled in the non-overlapping region may be controlled regardless of the priority applied / set to the other UL transmissions (option 1-2-1).
  • other UL transmissions scheduled in the non-overlapping region may be controlled based on the priority applied / set to the other UL transmissions (options 1-2-2, 1-2-3). ..
  • the non-overlapping area can be used for both the UL transmission of the first priority and the UL transmission of the second priority, so that the UL transmission schedule can be flexibly performed.
  • the other UL transmission to which the schedule to the non-overlap region is allowed may be only the UL transmission of the first priority (for example, high).
  • the UL transmission of the second priority for example, low
  • resources can be preferentially secured for UL transmission having a high priority.
  • the only other UL transmission to which the schedule to the non-overlap region is allowed may be the UL transmission of the second priority (eg, low).
  • the UL transmission of the first priority for example, high
  • the schedule to the non-overlapping region is not allowed.
  • the second aspect describes the UE operation when a plurality of UL transmissions that overlap at least in the time domain are scheduled / set.
  • the second aspect will be described by taking as an example a case where a plurality of UL transmissions overlapping in a time domain are scheduled / set (intra-UE) for a certain UE (same UE).
  • the application of this aspect is not limited to this.
  • the UE should not perform at least one UL transmission when multiple (eg, two) UL transmissions that overlap at least in some time domains are scheduled / configured within the same cell / carrier / BWP. It may be controlled to. In this case, the UE assumes that the UL cancellation instruction information (for example, UL CI) indicating the cancellation of one UL transmission (or the cancellation of the resource overlapping with the one UL transmission) has been detected, and the UL transmission is performed. Control may be performed.
  • the UL cancellation instruction information for example, UL CI
  • the UE may control to cancel / drop / postpone at least one UL transmission among the overlapping UL transmissions.
  • the UE may control UL transmission based on at least one of the UL transmission order, the DCI corresponding to the UL transmission, and the priority applied / set to the UL transmission. For example, the UE may control UL transmission by using at least one of the following options 2-1 to 2-4.
  • the UE is based on the transmission order of the PUSCHs when multiple UL transmissions (here, PUSCH # 1 and PUSCH # 2) that overlap at least in the time domain are scheduled / set and no cancellation is instructed for any of the UL transmissions.
  • the PUSCH to be transmitted may be determined.
  • the transmission order of the PUSCH may be determined with reference to the start symbol of the PUSCH.
  • the UE may interpret that UL CI is scheduled but missed detection.
  • the UE may interpret that UL CI is scheduled but missed detection.
  • the UE may control to transmit a PUSCH (here, PUSCH # 1) having an early transmission order (or a start symbol) and not to transmit a PUSCH (here, PUSCH # 2) having a late transmission order (here, PUSCH # 2). See FIG. 5).
  • the UE may ignore the UL grant (DCI # 2) that schedules PUSCH # 2, which has a slow transmission order.
  • the UE may control to transmit the PUSCH (here, PUSCH # 2) having a slow transmission order (or start symbol) and not to transmit the PUSCH (here, PUSCH # 1) having an early transmission order. Good (see Figure 6).
  • the UE may ignore the UL grant (DCI # 1) that schedules PUSCH # 1 having an earlier transmission order.
  • the UE schedules / sets multiple UL transmissions (here, PUSCH # 1 and PUSCH # 2) that overlap at least in the time domain, and if cancellation is not instructed for any of the UL transmissions, the DCI corresponding to each PUSCH.
  • the PUSCH to be transmitted may be determined based on the transmission order of (PDCCH).
  • the order of transmission of DCI (or PDCCH) may be determined based on the start symbol of DCI (or PDCCH).
  • the UE may interpret that UL CI is scheduled but missed detection.
  • the UE may interpret that UL CI is scheduled but missed detection.
  • the UE transmits PUSCH # 1 scheduled in DCI (here DCI # 1) with an earlier transmission order (or start symbol) and is scheduled in DCI (here DCI # 2) with a slower transmission order.
  • PUSCH # 2 may be controlled not to be transmitted (see FIG. 5).
  • the UE transmits PUSCH # 2, which is scheduled in DCI (here, DCI # 2), which has a slow transmission order (or start symbol), and schedules in DCI (here, DCI # 1), which has an earlier transmission order.
  • PUSCH # 1 may be controlled not to be transmitted (see FIG. 6). This allows the network to prioritize later (or up-to-date) scheduled PUSCH transmissions.
  • the UE is applied / set to the PUSCH if multiple UL transmissions (here, PUSCH # 1 and PUSCH # 2) that overlap at least in the time domain are scheduled / set and cancellation is not instructed for any of the UL transmissions.
  • the PUSCH to be transmitted may be determined based on the priority.
  • the priority applied / set to the PUSCH (or the priority of the PUSCH) may be notified / set by higher layer signaling / DCI.
  • the UE is scheduled to have PUSCH # 1 and PUSCH # 2 that overlap in the time domain, and the UE does not receive the UL cancel instruction (for example, UL CI).
  • the UL cancel instruction for example, UL CI
  • the UE sends a high priority PUSCH (eg, a first priority PUSCH) and does not (or drops) a low priority PUSCH (eg, a second priority PUSCH). ) (See FIG. 7). Further, the UE may control the transmission of overlapping PUSCHs in the time domain based on the priority of each PUSCH regardless of UL CI.
  • UL CI may be configured to be applied to PUSCH transmission between a plurality of UEs (inter-UE) and not to PUSCH transmission of the same UE (intra-UE).
  • the UE may determine that it is an error case when the priorities of PUSCH # 1 and PUSCH # 2 are the same.
  • the network may control the schedule so that PUSCHs of the same priority do not overlap in the time domain for a UE. For example, a UE may be scheduled by a PDCCH starting from symbol # i to send a PUSCH having the same priority as another PUSCH scheduled by another PDCCH ending earlier than symbol # i. Does not have to be assumed.
  • the UE may apply at least one of option 2-1 and option 2-2 when the priorities of PUSCH # 1 and PUSCH # 2 are the same.
  • a PUSCH having an early transmission order or a PUSCH scheduled by a DCI / PDCCH having an early transmission order
  • a PUSCH having a slow transmission order or a PUSCH scheduled by a DCI / PDCCH having a slow transmission order
  • Which one to drop / cancel may be defined in the specification, or may be notified / set from the network to the UE using higher layer signaling.
  • the UE may send both PUSCHs if multiple UL transmissions (here PUSCH # 1 and PUSCH # 2) that overlap at least in the time domain are scheduled / set and no cancellation is instructed for any of the UL transmissions. It may be controlled not to be performed (for example, drop / cancel) (see FIG. 8).
  • the transmission operation of the UE can be simplified.
  • wireless communication system Wireless communication system
  • communication is performed using any one of the wireless communication methods according to each of the above-described embodiments of the present disclosure or a combination thereof.
  • FIG. 9 is a diagram showing an example of a schematic configuration of a wireless communication system according to an embodiment.
  • the wireless communication system 1 may be a system that realizes communication using Long Term Evolution (LTE), 5th generation mobile communication system New Radio (5G NR), etc. specified by Third Generation Partnership Project (3GPP). ..
  • the wireless communication system 1 may support dual connectivity (Multi-RAT Dual Connectivity (MR-DC)) between a plurality of Radio Access Technologies (RATs).
  • MR-DC is a dual connectivity (E-UTRA-NR Dual Connectivity (EN-DC)) between LTE (Evolved Universal Terrestrial Radio Access (E-UTRA)) and NR, and a dual connectivity (NR-E) between NR and LTE.
  • E-UTRA-NR Dual Connectivity Evolved Universal Terrestrial Radio Access (E-UTRA)
  • NR-E dual connectivity
  • NE-DC -UTRA Dual Connectivity
  • the LTE (E-UTRA) base station (eNB) is the master node (Master Node (MN)), and the NR base station (gNB) is the secondary node (Secondary Node (SN)).
  • the base station (gNB) of NR is MN
  • the base station (eNB) of LTE (E-UTRA) is SN.
  • the wireless communication system 1 has dual connectivity between a plurality of base stations in the same RAT (for example, dual connectivity (NR-NR Dual Connectivity (NN-DC)) in which both MN and SN are NR base stations (gNB). )) May be supported.
  • a plurality of base stations in the same RAT for example, dual connectivity (NR-NR Dual Connectivity (NN-DC)) in which both MN and SN are NR base stations (gNB). )
  • NR-NR Dual Connectivity NR-DC
  • gNB NR base stations
  • the wireless communication system 1 includes a base station 11 that forms a macrocell C1 having a relatively wide coverage, and a base station 12 (12a-12c) that is arranged in the macrocell C1 and forms a small cell C2 that is narrower than the macrocell C1. You may prepare.
  • the user terminal 20 may be located in at least one cell. The arrangement, number, and the like of each cell and the user terminal 20 are not limited to the mode shown in the figure.
  • the base stations 11 and 12 are not distinguished, they are collectively referred to as the base station 10.
  • the user terminal 20 may be connected to at least one of a plurality of base stations 10.
  • the user terminal 20 may use at least one of carrier aggregation (Carrier Aggregation (CA)) and dual connectivity (DC) using a plurality of component carriers (Component Carrier (CC)).
  • CA Carrier Aggregation
  • DC dual connectivity
  • CC Component Carrier
  • Each CC may be included in at least one of a first frequency band (Frequency Range 1 (FR1)) and a second frequency band (Frequency Range 2 (FR2)).
  • the macrocell C1 may be included in FR1 and the small cell C2 may be included in FR2.
  • FR1 may be in a frequency band of 6 GHz or less (sub 6 GHz (sub-6 GHz)), and FR 2 may be in a frequency band higher than 24 GHz (above-24 GHz).
  • the frequency bands and definitions of FR1 and FR2 are not limited to these, and for example, FR1 may correspond to a frequency band higher than FR2.
  • the user terminal 20 may perform communication using at least one of Time Division Duplex (TDD) and Frequency Division Duplex (FDD) in each CC.
  • TDD Time Division Duplex
  • FDD Frequency Division Duplex
  • the plurality of base stations 10 may be connected by wire (for example, optical fiber compliant with Common Public Radio Interface (CPRI), X2 interface, etc.) or wirelessly (for example, NR communication).
  • wire for example, optical fiber compliant with Common Public Radio Interface (CPRI), X2 interface, etc.
  • NR communication for example, when NR communication is used as a backhaul between base stations 11 and 12, the base station 11 corresponding to the higher-level station is an Integrated Access Backhaul (IAB) donor, and the base station 12 corresponding to a relay station (relay) is IAB. It may be called a node.
  • IAB Integrated Access Backhaul
  • relay station relay station
  • the base station 10 may be connected to the core network 30 via another base station 10 or directly.
  • the core network 30 may include at least one such as Evolved Packet Core (EPC), 5G Core Network (5GCN), and Next Generation Core (NGC).
  • EPC Evolved Packet Core
  • 5GCN 5G Core Network
  • NGC Next Generation Core
  • the user terminal 20 may be a terminal that supports at least one of communication methods such as LTE, LTE-A, and 5G.
  • a wireless access method based on Orthogonal Frequency Division Multiplexing may be used.
  • OFDM Orthogonal Frequency Division Multiplexing
  • DL Downlink
  • UL Uplink
  • CP-OFDM Cyclic Prefix OFDM
  • DFT-s-OFDM Discrete Fourier Transform Spread OFDM
  • OFDMA Orthogonal Frequency Division Multiple. Access
  • SC-FDMA Single Carrier Frequency Division Multiple Access
  • the wireless access method may be called a waveform.
  • another wireless access system for example, another single carrier transmission system, another multi-carrier transmission system
  • the UL and DL wireless access systems may be used as the UL and DL wireless access systems.
  • a downlink shared channel Physical Downlink Shared Channel (PDSCH)
  • a broadcast channel Physical Broadcast Channel (PBCH)
  • a downlink control channel Physical Downlink Control
  • PDSCH Physical Downlink Control
  • the uplink shared channel Physical Uplink Shared Channel (PUSCH)
  • the uplink control channel Physical Uplink Control Channel (PUCCH)
  • the random access channel shared by each user terminal 20 are used.
  • Physical Random Access Channel (PRACH) Physical Random Access Channel or the like may be used.
  • User data, upper layer control information, System Information Block (SIB), etc. are transmitted by PDSCH.
  • User data, upper layer control information, and the like may be transmitted by the PUSCH.
  • the Master Information Block (MIB) may be transmitted by the PBCH.
  • Lower layer control information may be transmitted by PDCCH.
  • the lower layer control information may include, for example, downlink control information (Downlink Control Information (DCI)) including scheduling information of at least one of PDSCH and PUSCH.
  • DCI Downlink Control Information
  • the DCI that schedules PDSCH may be called DL assignment, DL DCI, or the like, and the DCI that schedules PUSCH may be called UL grant, UL DCI, or the like.
  • the PDSCH may be read as DL data, and the PUSCH may be read as UL data.
  • a control resource set (COntrol REsource SET (CORESET)) and a search space (search space) may be used for PDCCH detection.
  • CORESET corresponds to a resource for searching DCI.
  • the search space corresponds to the search area and search method of PDCCH candidates (PDCCH candidates).
  • One CORESET may be associated with one or more search spaces. The UE may monitor the CORESET associated with a search space based on the search space settings.
  • One search space may correspond to PDCCH candidates corresponding to one or more aggregation levels.
  • One or more search spaces may be referred to as a search space set.
  • the "search space”, “search space set”, “search space setting”, “search space set setting”, “CORESET”, “CORESET setting”, etc. of the present disclosure may be read as each other.
  • channel state information (Channel State Information (CSI)
  • delivery confirmation information for example, it may be called Hybrid Automatic Repeat reQuest ACKnowledgement (HARQ-ACK), ACK / NACK, etc.
  • scheduling request for example.
  • Uplink Control Information (UCI) including at least one of SR) may be transmitted.
  • the PRACH may transmit a random access preamble to establish a connection with the cell.
  • downlinks, uplinks, etc. may be expressed without “links”. Further, it may be expressed without adding "Physical" to the beginning of various channels.
  • a synchronization signal (Synchronization Signal (SS)), a downlink reference signal (Downlink Reference Signal (DL-RS)), and the like may be transmitted.
  • the DL-RS includes a cell-specific reference signal (Cell-specific Reference Signal (CRS)), a channel state information reference signal (Channel State Information Reference Signal (CSI-RS)), and a demodulation reference signal (DeModulation).
  • CRS Cell-specific Reference Signal
  • CSI-RS Channel State Information Reference Signal
  • DeModulation Demodulation reference signal
  • Reference Signal (DMRS)), positioning reference signal (Positioning Reference Signal (PRS)), phase tracking reference signal (Phase Tracking Reference Signal (PTRS)), and the like may be transmitted.
  • PRS Positioning Reference Signal
  • PTRS Phase Tracking Reference Signal
  • the synchronization signal may be, for example, at least one of a primary synchronization signal (Primary Synchronization Signal (PSS)) and a secondary synchronization signal (Secondary Synchronization Signal (SSS)).
  • PSS Primary Synchronization Signal
  • SSS Secondary Synchronization Signal
  • the signal block including SS (PSS, SSS) and PBCH (and DMRS for PBCH) may be referred to as SS / PBCH block, SS Block (SSB) and the like.
  • SS, SSB and the like may also be called a reference signal.
  • a measurement reference signal Sounding Reference Signal (SRS)
  • a demodulation reference signal DMRS
  • UL-RS Uplink Reference Signal
  • UE-specific Reference Signal UE-specific Reference Signal
  • FIG. 10 is a diagram showing an example of the configuration of a base station according to an embodiment.
  • the base station 10 includes a control unit 110, a transmission / reception unit 120, a transmission / reception antenna 130, and a transmission line interface 140.
  • the control unit 110, the transmission / reception unit 120, the transmission / reception antenna 130, and the transmission line interface 140 may each be provided with one or more.
  • the functional block of the characteristic portion in the present embodiment is mainly shown, and it may be assumed that the base station 10 also has other functional blocks necessary for wireless communication. A part of the processing of each part described below may be omitted.
  • the control unit 110 controls the entire base station 10.
  • the control unit 110 can be composed of a controller, a control circuit, and the like described based on the common recognition in the technical field according to the present disclosure.
  • the control unit 110 may control signal generation, scheduling (for example, resource allocation, mapping) and the like.
  • the control unit 110 may control transmission / reception, measurement, and the like using the transmission / reception unit 120, the transmission / reception antenna 130, and the transmission line interface 140.
  • the control unit 110 may generate data to be transmitted as a signal, control information, a sequence, and the like, and transfer the data to the transmission / reception unit 120.
  • the control unit 110 may perform call processing (setting, release, etc.) of the communication channel, state management of the base station 10, management of radio resources, and the like.
  • the transmission / reception unit 120 may include a baseband unit 121, a Radio Frequency (RF) unit 122, and a measurement unit 123.
  • the baseband unit 121 may include a transmission processing unit 1211 and a reception processing unit 1212.
  • the transmitter / receiver 120 includes a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measurement circuit, a transmitter / receiver circuit, and the like, which are described based on the common recognition in the technical field according to the present disclosure. be able to.
  • the transmission / reception unit 120 may be configured as an integrated transmission / reception unit, or may be composed of a transmission unit and a reception unit.
  • the transmission unit may be composed of a transmission processing unit 1211 and an RF unit 122.
  • the receiving unit may be composed of a receiving processing unit 1212, an RF unit 122, and a measuring unit 123.
  • the transmitting / receiving antenna 130 can be composed of an antenna described based on the common recognition in the technical field according to the present disclosure, for example, an array antenna.
  • the transmission / reception unit 120 may transmit the above-mentioned downlink channel, synchronization signal, downlink reference signal, and the like.
  • the transmission / reception unit 120 may receive the above-mentioned uplink channel, uplink reference signal, and the like.
  • the transmission / reception unit 120 may form at least one of a transmission beam and a reception beam by using digital beamforming (for example, precoding), analog beamforming (for example, phase rotation), and the like.
  • digital beamforming for example, precoding
  • analog beamforming for example, phase rotation
  • the transmission / reception unit 120 processes, for example, Packet Data Convergence Protocol (PDCP) layer processing and Radio Link Control (RLC) layer processing (for example, RLC) for data, control information, etc. acquired from control unit 110.
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control
  • MAC Medium Access Control
  • HARQ retransmission control HARQ retransmission control
  • the transmission / reception unit 120 performs channel coding (may include error correction coding), modulation, mapping, filtering, and discrete Fourier transform (Discrete Fourier Transform (DFT)) for the bit string to be transmitted. Processing (if necessary), inverse Fast Fourier Transform (IFFT) processing, precoding, transmission processing such as digital-analog transformation may be performed, and the baseband signal may be output.
  • channel coding may include error correction coding
  • modulation modulation
  • mapping mapping, filtering
  • DFT discrete Fourier Transform
  • IFFT inverse Fast Fourier Transform
  • precoding coding
  • transmission processing such as digital-analog transformation
  • the transmission / reception unit 120 may perform modulation, filtering, amplification, etc. on the baseband signal to the radio frequency band, and transmit the signal in the radio frequency band via the transmission / reception antenna 130. ..
  • the transmission / reception unit 120 may perform amplification, filtering, demodulation to a baseband signal, or the like on the signal in the radio frequency band received by the transmission / reception antenna 130.
  • the transmission / reception unit 120 (reception processing unit 1212) performs analog-digital conversion, fast Fourier transform (FFT) processing, and inverse discrete Fourier transform (IDFT) for the acquired baseband signal. )) Processing (if necessary), filtering, decoding, demodulation, decoding (may include error correction decoding), MAC layer processing, RLC layer processing, PDCP layer processing, and other reception processing are applied. User data and the like may be acquired.
  • FFT fast Fourier transform
  • IDFT inverse discrete Fourier transform
  • the transmission / reception unit 120 may perform measurement on the received signal.
  • the measurement unit 123 may perform Radio Resource Management (RRM) measurement, Channel State Information (CSI) measurement, or the like based on the received signal.
  • the measuring unit 123 has received power (for example, Reference Signal Received Power (RSRP)) and reception quality (for example, Reference Signal Received Quality (RSRQ), Signal to Interference plus Noise Ratio (SINR), Signal to Noise Ratio (SNR)).
  • RSRP Reference Signal Received Power
  • RSSQ Reference Signal Received Quality
  • SINR Signal to Noise Ratio
  • Signal strength for example, Received Signal Strength Indicator (RSSI)
  • propagation path information for example, CSI
  • the measurement result may be output to the control unit 110.
  • the transmission line interface 140 transmits / receives signals (backhaul signaling) to / from a device included in the core network 30, another base station 10, etc., and user data (user plane data) for the user terminal 20 and a control plane. Data or the like may be acquired or transmitted.
  • the transmission unit and the reception unit of the base station 10 in the present disclosure may be composed of at least one of the transmission / reception unit 120, the transmission / reception antenna 130, and the transmission path interface 140.
  • the transmission / reception unit 120 may transmit downlink control information including information regarding a resource for canceling UL transmission.
  • the control unit 110 may control another UL transmission schedule for a time area that does not overlap with the resource notified by the downlink control information among the UL transmission time areas to be canceled based on the downlink control information.
  • Other UL transmissions may be determined based on at least one of the presence or absence of a higher layer parameter setting and the priority of another UL transmission.
  • FIG. 11 is a diagram showing an example of the configuration of the user terminal according to the embodiment.
  • the user terminal 20 includes a control unit 210, a transmission / reception unit 220, and a transmission / reception antenna 230.
  • the control unit 210, the transmission / reception unit 220, and the transmission / reception antenna 230 may each be provided with one or more.
  • the functional block of the feature portion in the present embodiment is mainly shown, and it may be assumed that the user terminal 20 also has other functional blocks necessary for wireless communication. A part of the processing of each part described below may be omitted.
  • the control unit 210 controls the entire user terminal 20.
  • the control unit 210 can be composed of a controller, a control circuit, and the like described based on the common recognition in the technical field according to the present disclosure.
  • the control unit 210 may control signal generation, mapping, and the like.
  • the control unit 210 may control transmission / reception, measurement, and the like using the transmission / reception unit 220 and the transmission / reception antenna 230.
  • the control unit 210 may generate data to be transmitted as a signal, control information, a sequence, and the like, and transfer the data to the transmission / reception unit 220.
  • the transmission / reception unit 220 may include a baseband unit 221, an RF unit 222, and a measurement unit 223.
  • the baseband unit 221 may include a transmission processing unit 2211 and a reception processing unit 2212.
  • the transmitter / receiver 220 can be composed of a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measurement circuit, a transmitter / receiver circuit, and the like, which are described based on the common recognition in the technical field according to the present disclosure.
  • the transmission / reception unit 220 may be configured as an integrated transmission / reception unit, or may be composed of a transmission unit and a reception unit.
  • the transmission unit may be composed of a transmission processing unit 2211 and an RF unit 222.
  • the receiving unit may be composed of a receiving processing unit 2212, an RF unit 222, and a measuring unit 223.
  • the transmitting / receiving antenna 230 can be composed of an antenna described based on the common recognition in the technical field according to the present disclosure, for example, an array antenna.
  • the transmission / reception unit 220 may receive the above-mentioned downlink channel, synchronization signal, downlink reference signal, and the like.
  • the transmission / reception unit 220 may transmit the above-mentioned uplink channel, uplink reference signal, and the like.
  • the transmission / reception unit 220 may form at least one of a transmission beam and a reception beam by using digital beamforming (for example, precoding), analog beamforming (for example, phase rotation), and the like.
  • digital beamforming for example, precoding
  • analog beamforming for example, phase rotation
  • the transmission / reception unit 220 processes, for example, PDCP layer processing, RLC layer processing (for example, RLC retransmission control), and MAC layer processing (for example, for data, control information, etc. acquired from the control unit 210). , HARQ retransmission control), etc., to generate a bit string to be transmitted.
  • the transmission / reception unit 220 (transmission processing unit 2211) performs channel coding (may include error correction coding), modulation, mapping, filtering processing, DFT processing (if necessary), and IFFT processing for the bit string to be transmitted. , Precoding, digital-to-analog conversion, and other transmission processing may be performed, and the baseband signal may be output.
  • Whether or not to apply the DFT process may be based on the transform precoding setting.
  • the transmission / reception unit 220 transmits the channel using the DFT-s-OFDM waveform.
  • the DFT process may be performed as the transmission process, and if not, the DFT process may not be performed as the transmission process.
  • the transmission / reception unit 220 may perform modulation, filtering, amplification, etc. on the baseband signal to the radio frequency band, and transmit the signal in the radio frequency band via the transmission / reception antenna 230. ..
  • the transmission / reception unit 220 may perform amplification, filtering, demodulation to a baseband signal, or the like on the signal in the radio frequency band received by the transmission / reception antenna 230.
  • the transmission / reception unit 220 (reception processing unit 2212) performs analog-to-digital conversion, FFT processing, IDFT processing (if necessary), filtering processing, demapping, demodulation, and decoding (error correction) for the acquired baseband signal. Decoding may be included), MAC layer processing, RLC layer processing, PDCP layer processing, and other reception processing may be applied to acquire user data and the like.
  • the transmission / reception unit 220 may perform measurement on the received signal.
  • the measuring unit 223 may perform RRM measurement, CSI measurement, or the like based on the received signal.
  • the measuring unit 223 may measure received power (for example, RSRP), reception quality (for example, RSRQ, SINR, SNR), signal strength (for example, RSSI), propagation path information (for example, CSI), and the like.
  • the measurement result may be output to the control unit 210.
  • the transmission unit and the reception unit of the user terminal 20 in the present disclosure may be configured by at least one of the transmission / reception unit 220 and the transmission / reception antenna 230.
  • the transmission / reception unit 220 may receive downlink control information including information regarding a resource for canceling UL transmission.
  • the control unit 210 may control other UL transmissions that are allowed to be scheduled for a time domain that does not overlap with the resource notified by the downlink control information among the UL transmission time domains that are canceled based on the downlink control information. ..
  • Other UL transmissions may be determined based on at least one of the presence or absence of a higher layer parameter setting and the priority of another UL transmission.
  • control unit 210 may apply cancellation based on downlink control information to UL transmission having a second priority lower than the first priority. If one higher layer parameter is set, the other UL transmission may be a UL transmission with a first priority.
  • the other UL transmission may be a UL transmission having at least one of a first priority and a second priority.
  • each functional block is realized using one physically or logically coupled device, or two or more physically or logically separated devices can be directly or indirectly (eg, for example). , 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.
  • the functions include judgment, decision, judgment, calculation, calculation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, solution, selection, selection, establishment, comparison, assumption, expectation, and deemed. , Broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc.
  • a functional block (configuration unit) for functioning transmission may be referred to as a transmitting unit (transmitting unit), a transmitter (transmitter), or the like.
  • the realization method is not particularly limited.
  • the base station, user terminal, and the like in one embodiment of the present disclosure may function as a computer that processes the wireless communication method of the present disclosure.
  • FIG. 12 is a diagram showing an example of the hardware configuration of the base station and the user terminal according to the embodiment.
  • the base station 10 and the user terminal 20 described above may be physically 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 hardware configuration of the base station 10 and the user terminal 20 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.
  • processor 1001 may be a plurality of processors. Further, the processing may be executed by one processor, or the processing may be executed simultaneously, sequentially, or by using other methods by two or more processors.
  • the processor 1001 may be mounted by one or more chips.
  • the processor 1001 For each function in the base station 10 and the user terminal 20, for example, by loading predetermined software (program) on hardware such as the processor 1001 and the memory 1002, the processor 1001 performs an operation and communicates via the communication device 1004. It is realized by controlling at least one of reading and writing of data in the memory 1002 and the storage 1003.
  • predetermined software program
  • the processor 1001 operates, for example, an operating system to control the entire computer.
  • the processor 1001 may be configured by 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
  • control unit 110 210
  • transmission / reception unit 120 220
  • the like may be realized by the processor 1001.
  • 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
  • the control unit 110 may be realized by a control program stored in the memory 1002 and operating in the processor 1001, and may be realized in the same manner for other functional blocks.
  • the memory 1002 is a computer-readable recording medium, for example, at least a Read Only Memory (ROM), an Erasable Programmable ROM (EPROM), an Electrically EPROM (EEPROM), a Random Access Memory (RAM), or any other suitable storage medium. It may be composed of one.
  • 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 be executed to implement the wireless communication method according to the embodiment of the present disclosure.
  • the storage 1003 is a computer-readable recording medium, and is, for example, a flexible disk, a floppy disk (registered trademark) disk, an optical magnetic disk (for example, a compact disc (Compact Disc ROM (CD-ROM), etc.), a digital versatile disk, etc.). At least one of Blu-ray® discs), removable discs, optical disc drives, smart cards, flash memory devices (eg cards, sticks, key drives), magnetic stripes, databases, servers and other suitable storage media. May be configured by.
  • the storage 1003 may be referred to as an auxiliary storage device.
  • 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 has, 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 (Frequency Division Duplex (FDD)) and time division duplex (Time Division Duplex (TDD)). May be configured to include.
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • the transmission / reception unit 120 (220), transmission / reception antenna 130 (230), and the like may be realized by the communication device 1004.
  • the transmission / reception unit 120 (220) may be physically or logically separated from the transmission unit 120a (220a) and the reception unit 120b (220b).
  • the input device 1005 is an input device (for example, a keyboard, a mouse, a microphone, a switch, a button, a sensor, etc.) that accepts an input from the outside.
  • the output device 1006 is an output device (for example, a display, a speaker, a Light Emitting Diode (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).
  • each device such as the processor 1001 and the memory 1002 is connected by the bus 1007 for communicating information.
  • the bus 1007 may be configured by using a single bus, or may be configured by using a different bus for each device.
  • the base station 10 and the user terminal 20 include a microprocessor, a digital signal processor (Digital Signal Processor (DSP)), an Application Specific Integrated Circuit (ASIC), a Programmable Logic Device (PLD), a Field Programmable Gate Array (FPGA), and the like. It may be configured to include hardware, and a part or all of each functional block may be realized by using the hardware. For example, processor 1001 may be implemented using at least one of these hardware.
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • PLD Programmable Logic Device
  • FPGA Field Programmable Gate Array
  • the terms described in the present disclosure and the terms necessary for understanding the present disclosure may be replaced with terms having the same or similar meanings.
  • channels, symbols and signals may be read interchangeably.
  • the signal may be a message.
  • the reference signal may be abbreviated as RS, and may be referred to as a pilot, a pilot signal, or the like depending on the applied standard.
  • the component carrier CC may be referred to as a cell, a frequency carrier, a carrier frequency, or the like.
  • the wireless frame may be configured by one or more periods (frames) in the time domain.
  • Each of the one or more periods (frames) constituting the radio frame may be referred to as a subframe.
  • the subframe may be composed of one or more slots in the time domain.
  • the subframe may have a fixed time length (eg, 1 ms) that does not depend on numerology.
  • the numerology may be a communication parameter applied to at least one of transmission and reception of a signal or channel.
  • Numerology includes, for example, subcarrier spacing (SubCarrier Spacing (SCS)), bandwidth, symbol length, cyclic prefix length, transmission time interval (Transmission Time Interval (TTI)), number of symbols per TTI, and wireless frame configuration.
  • SCS subcarrier Spacing
  • TTI Transmission Time Interval
  • a specific filtering process performed by the transmitter / receiver 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 in the time domain (Orthogonal Frequency Division Multiplexing (OFDM) symbol, Single Carrier Frequency Division Multiple Access (SC-FDMA) symbol, etc.). Further, the slot may be a time unit based on numerology.
  • 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 be composed 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.
  • the PDSCH (or PUSCH) transmitted in time units larger than the minislot may be referred to as PDSCH (PUSCH) mapping type A.
  • the PDSCH (or PUSCH) transmitted using the minislot may be referred to as PDSCH (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 use different names corresponding to each.
  • the time units such as frames, subframes, slots, minislots, and symbols in the present disclosure may be read as each other.
  • one subframe may be called TTI
  • a plurality of consecutive subframes may be called TTI
  • one slot or one minislot may be called TTI. That is, at least one of the subframe and TTI may be a subframe (1 ms) in existing LTE, a period shorter than 1 ms (eg, 1-13 symbols), or a period longer than 1 ms. 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.
  • the 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.
  • 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 referred to as a normal TTI (TTI in 3GPP Rel. 8-12), a normal TTI, a long TTI, a normal subframe, a normal subframe, a long subframe, a slot, or the like.
  • a TTI shorter than a normal TTI may be referred to as a shortened TTI, a short TTI, a partial TTI (partial or fractional TTI), a shortened subframe, a short subframe, a minislot, a subslot, a slot, or the like.
  • the long TTI (eg, normal TTI, subframe, etc.) may be read as a TTI having a time length of more than 1 ms
  • the short TTI eg, shortened TTI, etc.
  • TTI having the above TTI length may be read as TTI having the above TTI length.
  • a resource block 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 the RB may be the same regardless of the numerology, and may be, for example, 12.
  • the number of subcarriers contained in the RB may be determined based on numerology.
  • the RB may include one or more symbols in the time domain, 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 are 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, and an RB. It may be called a pair or the like.
  • PRB Physical RB
  • SCG sub-carrier Group
  • REG resource element group
  • PRB pair an RB. It may be called a pair or the like.
  • the resource block may be composed of one or a plurality of resource elements (Resource Element (RE)).
  • RE Resource Element
  • 1RE may be a radio resource area of 1 subcarrier and 1 symbol.
  • Bandwidth Part (which may also be called partial bandwidth) represents a subset of consecutive common resource blocks (RBs) for a neurology in a carrier. May be 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.
  • the BWP may include UL BWP (BWP for UL) and DL BWP (BWP for DL).
  • BWP UL BWP
  • BWP for DL DL BWP
  • 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, mini-slots and symbols are merely examples.
  • the number of subframes contained in a radio frame the number of slots per subframe or radioframe, the number of minislots contained within a slot, the number of symbols and RBs contained in a slot or minislot, included in the RB.
  • the number of subcarriers, the number of symbols in TTI, the symbol length, the cyclic prefix (CP) length, and other configurations can be changed in various ways.
  • the information, parameters, etc. described in the present disclosure may be expressed using an absolute value, a relative value from a predetermined value, or another corresponding information. It may be represented.
  • the radio resource may be indicated by a given index.
  • 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.
  • information, signals, etc. can be output from the upper layer to the lower layer and from the lower layer to at least one of the upper layers.
  • Information, signals, etc. may be input / output via a plurality of network nodes.
  • Input / output information, signals, etc. may be stored in a specific location (for example, memory) or may be managed using a management table. Input / output information, signals, etc. can be overwritten, updated, or added. The output information, signals, etc. may be deleted. The input information, signals, etc. may be transmitted to other devices.
  • the notification of information is not limited to the embodiment / embodiment described in the present disclosure, and may be performed by using another method.
  • the notification of information in the present disclosure includes physical layer signaling (for example, downlink control information (DCI)), uplink control information (Uplink Control Information (UCI))), and higher layer signaling (for example, Radio Resource Control). (RRC) signaling, broadcast information (Master Information Block (MIB), System Information Block (SIB), etc.), Medium Access Control (MAC) signaling), other signals or combinations thereof. May be carried out by.
  • DCI downlink control information
  • UCI Uplink Control Information
  • RRC Radio Resource Control
  • MIB Master Information Block
  • SIB System Information Block
  • MAC Medium Access Control
  • the physical layer signaling may be referred to as Layer 1 / Layer 2 (L1 / L2) control information (L1 / L2 control signal), L1 control information (L1 control signal), and the like.
  • the RRC signaling may be referred to as an RRC message, and may be, for example, an RRC Connection Setup message, an RRC Connection Reconfiguration message, or the like.
  • MAC signaling may be notified using, for example, a MAC control element (MAC Control Element (CE)).
  • CE MAC Control Element
  • the notification of predetermined information is not limited to the explicit notification, but implicitly (for example, by not notifying the predetermined information or another information). May be done (by notification of).
  • the determination may be made by a value represented by 1 bit (0 or 1), or by a boolean value represented by true or false. , May be done by numerical comparison (eg, comparison with a given value).
  • Software whether called 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, features, etc. should be broadly interpreted.
  • software, instructions, information, etc. may be transmitted and received via a transmission medium.
  • the software uses at least one of wired technology (coaxial cable, optical fiber cable, twisted pair, digital subscriber line (DSL), etc.) and wireless technology (infrared, microwave, etc.) on the website.
  • wired technology coaxial cable, optical fiber cable, twisted pair, digital subscriber line (DSL), etc.
  • wireless technology infrared, microwave, etc.
  • the terms “system” and “network” used in this disclosure may be used interchangeably.
  • the “network” may mean a device (eg, a base station) included in the network.
  • precoding "precoding weight”
  • QCL Quality of Co-Co-Location
  • TCI state Transmission Configuration Indication state
  • space "Spatial relation”, “spatial domain filter”, “transmission power”, “phase rotation”, "antenna port”, “antenna port group”, “layer”, “number of layers”
  • Terms such as “rank”, “resource”, “resource set”, “resource group”, “beam”, “beam width”, “beam angle”, "antenna”, “antenna element", “panel” are compatible.
  • base station BS
  • wireless base station fixed station
  • NodeB NodeB
  • eNB eNodeB
  • gNB gNodeB
  • Access point "Transmission point (Transmission Point (TP))
  • Reception point Reception Point
  • TRP Transmission / Reception Point
  • Panel , "Cell”, “sector”, “cell group”, “carrier”, “component carrier” and the like
  • Base stations are sometimes referred to by terms such as macrocells, small cells, femtocells, and picocells.
  • the base station can accommodate one or more (eg, 3) cells.
  • a base station accommodates multiple cells, the entire base station coverage area 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))).
  • RRH Head
  • the term "cell” or “sector” refers to part or all of the coverage area of at least one of a base station and a base station subsystem that provides communication services in this coverage.
  • MS mobile station
  • UE user equipment
  • terminal terminal
  • Mobile stations include 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 terminals, remote terminals. , 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 wireless 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, a mobile body itself, or the like.
  • the moving body may be a vehicle (eg, car, airplane, etc.), an unmanned moving body (eg, drone, self-driving car, etc.), or a robot (manned or unmanned). ) 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 the base station and the 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 by the user terminal.
  • the communication between the base station and the user terminal is replaced with the communication between a plurality of user terminals (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 user terminal 20 may have the function of the base station 10 described above.
  • 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 user terminal in the present disclosure may be read as a base station.
  • the base station 10 may have the functions of the user terminal 20 described above.
  • the operation performed by the base station may be performed by its upper node (upper node) in some cases.
  • various operations performed for communication with a terminal are a base station, one or more network nodes other than the base station (for example,).
  • Mobility Management Entity (MME), Serving-Gateway (S-GW), etc. can be considered, but it is not limited to these), or it is clear that it can be performed by a combination thereof.
  • Each aspect / embodiment described in the present disclosure may be used alone, in combination, or may be switched and used according to the execution. Further, the order of the processing procedures, sequences, flowcharts, etc. of each aspect / embodiment described in the present disclosure may be changed as long as there is no contradiction. For example, the methods described in the present disclosure present elements of various steps using exemplary order, and are not limited to the particular order presented.
  • LTE Long Term Evolution
  • LTE-A LTE-Advanced
  • SUPER 3G IMT-Advanced
  • 4G 4th generation mobile communication system
  • 5G 5th generation mobile communication system
  • 6G 6th generation mobile communication system
  • xG xG (xG (x is, for example, an integer or a fraction)
  • Future Radio Access FAA
  • RAT New -Radio Access Technology
  • NR New Radio
  • NX New radio access
  • FX Future generation radio access
  • GSM registered trademark
  • CDMA2000 Code Division Multiple Access
  • UMB Ultra Mobile Broadband
  • UMB Ultra Mobile Broadband
  • LTE 802.11 Wi-Fi®
  • LTE 802.16 WiMAX®
  • LTE 802.20 Ultra-WideBand (UWB), Bluetooth®, and other suitable radios.
  • UMB Ultra Mobile Broadband
  • 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 or that the first element must somehow precede the second element.
  • determining used in this disclosure may include a wide variety of actions.
  • judgment (decision) means 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, etc. may be considered to be "judgment”.
  • judgment (decision) includes receiving (for example, receiving information), transmitting (for example, transmitting information), input (input), output (output), and access (for example). It may be regarded as “determining” such as accessing) (for example, accessing data in memory).
  • judgment (decision) is regarded as “judgment (decision)” of solving, selecting, selecting, establishing, comparing, and the like. May be good. That is, “judgment (decision)” may be regarded as “judgment (decision)” of some action.
  • the "maximum transmission power" described in the present disclosure may mean the maximum value of the transmission power, may mean the nominal UE maximum transmit power, or may mean the rated maximum transmission power (the). It may mean rated UE maximum transmit power).
  • connection are any direct or indirect connections or connections between two or more elements. Means, and can include the presence of one or more intermediate elements between two elements that are “connected” or “bonded” to each other.
  • the connection or connection between the elements may be physical, logical, or a combination thereof. For example, "connection” may be read as "access”.
  • the radio frequency domain microwaves. It can be considered to be “connected” or “coupled” to each other using frequency, electromagnetic energy having wavelengths in the region, light (both visible and invisible) regions, 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”.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Selon un mode de réalisation, la présente invention concerne un terminal comprenant : une unité de réception qui reçoit des informations de commande de liaison descendante (DCI) qui contiennent des informations se rapportant à une ressource pour l'annulation d'une transmission en liaison montante (UL) ; et une unité de commande qui commande une autre transmission UL qui est autorisée à être planifiée dans une région temporelle qui se trouve dans la région temporelle de la transmission UL annulée sur la base des informations de commande de liaison descendante mais qui ne chevauche pas la ressource, l'autre transmission UL étant déterminée sur la base de la présence/absence de réglage d'un paramètre de couche supérieure et/ou de la priorité de l'autre transmission UL.
PCT/JP2020/020314 2020-05-22 2020-05-22 Terminal, procédé de communication sans fil, et station de base WO2021234949A1 (fr)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019215956A1 (fr) * 2018-05-08 2019-11-14 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ Terminal et procédé de transmission

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019215956A1 (fr) * 2018-05-08 2019-11-14 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ Terminal et procédé de transmission

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
HUAWEI ET AL.: "Corrections on UL inter-UE multiplexing", 3GPP TSG RAN WG1 #101-E RL-2003527, 16 May 2020 (2020-05-16), XP051885311 *
NEC: "Remaining Issues on Enhanced Inter-UE Tx Prioritization/Multiplexing", 3GPP TSG RAN WG1 #101-E RL-2003709, 15 May 2020 (2020-05-15), XP051885481 *

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