Terminal, wireless communication method, and base station

Abstract

A terminal involved in one embodiment of the present disclosure includes: a receiving unit that receives downlink control information including information related to resources for canceling UL transmission; and a control unit that controls, when a HARQ‑ACK for a downlink shared channel that is semi-continuously transmitted overlaps with other UL transmissions in the time domain and the other UL transmissions use resources for canceling the UL transmission, so that one of a first UL transmission control and a second UL transmission control is applied after the other is first applied, wherein the first UL transmission control is based on priorities corresponding to the HARQ‑ACK and the other UL transmissions, respectively, and the second UL transmission control is based on information related to resources for canceling the UL transmission.

Description

Technical Field

[0001] The present disclosure relates to a terminal, a wireless communication method, and a base station in a next-generation mobile communication system. Background Art

[0002] In the Universal Mobile Telecommunications System (UMTS) network, Long Term Evolution (LTE) has been standardized to achieve even higher data rates and lower latency (Non-Patent Document 1). Furthermore, LTE-Advanced (3GPP Rel. 10-14) has been standardized to further enhance the capacity and sophistication of LTE (Third Generation Partnership Project (3GPP) Releases (Rel.) 8 and 9).

[0003] Successor systems to LTE (for example, also referred to as fifth-generation mobile communication system (5G), 5G+ (plus), New Radio (NR), 3GPP Rel. 15 and later, etc.) are also under study.

[0004] Prior art literature

[0005] Non-patent literature

[0006] Non-Patent Document 1: 3GPP TS 36.300 V8.12.0 “Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN); Overall Description; Stage 2 (Release 8)”, April 2010 Summary of the Invention

[0007] Problems to be solved by the invention

[0008] In future wireless communication systems (e.g., 5G, NR, etc.), for example, high speed and large capacity (e.g., enhanced Mobile Broad Band (eMBB)), a large number of terminals (e.g., massive Machine Type Communication (mMTC) and Internet of Things (IoT)), ultra-reliability and low latency (e.g., Ultra Reliable and Low Latency Communications (URLLC)), etc.), a mixed coexistence of multiple services (also called use cases, communication types, etc.) with different communication requirements (requirements) is envisioned.

[0009] For example, after Rel. 16, research is underway to set priorities for signals / channels and control communications based on the priorities assigned to each signal / channel. For example, when multiple signals / channels overlap, it is envisioned that transmission and reception will be controlled based on the priorities of each signal / channel.

[0010] In addition, in order to meet the communication requirements for delay reduction and / or reliability, it is also envisaged to cancel (also called cancellation, preemption, interruption, cancellation, insertion, interruption, etc.) the scheduled uplink (UL) transmission.

[0011] However, insufficient research has been conducted on how to control UL transmission control based on UL transmission cancellation information when multiple UL transmissions overlap. For example, when UL transmissions are prioritized, the issue arises as to how to control UL transmission control based on priority and UL transmission cancellation information.

[0012] Therefore, one of the objects of the present disclosure is to provide a terminal, a wireless communication method, and a base station that can appropriately perform UL transmission even when a cancellation operation of UL transmission is supported.

[0013] Means for solving problems

[0014] A terminal involved in one embodiment of the present disclosure is characterized in that it has: a receiving unit that receives downlink control information including information related to resources for canceling UL transmission; and a control unit that controls, when a HARQ-ACK for a downlink shared channel that is semi-continuously transmitted overlaps with other UL transmissions in the time domain, and the other UL transmissions utilize resources for canceling the UL transmission, so that one of a first UL transmission control and a second UL transmission control is applied after the other is first applied, wherein the first UL transmission control is based on priorities corresponding to the HARQ-ACK and the other UL transmissions, respectively, and the second UL transmission control is based on information related to resources for canceling the UL transmission.

[0015] Effects of the Invention

[0016] According to one embodiment of the present disclosure, UL transmission can be appropriately performed even when a cancellation operation of UL transmission is supported. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a diagram showing an example of UL transmission control based on priority.

[0018] Figure 2 This is a diagram showing another example of UL transmission control based on priority.

[0019] Figure 3 This is a diagram showing an example of HARQ-ACK transmission control for the SPS PDSCH.

[0020] Figure 4 This is a diagram showing another example of HARQ-ACK transmission control for the SPS PDSCH.

[0021] Figure 5 This is a diagram showing an example of a case where PUSCH transmission is canceled by a UL cancel instruction.

[0022] Figure 6 This is a diagram showing an example of UL transmission control based on a UL cancel instruction.

[0023] Figure 7 This is a diagram showing an example of UL transmission control according to the first example.

[0024] Figure 8 This is a diagram showing another example of UL transmission control according to the first example.

[0025] Figure 9 This is a diagram showing another example of UL transmission control according to the first example.

[0026] Figure 10This is a diagram showing another example of UL transmission control according to the first example.

[0027] Figure 11 This is a diagram showing another example of UL transmission control according to the first example.

[0028] Figure 12 This is a diagram showing another example of UL transmission control according to the first example.

[0029] Figure 13 This is a diagram showing another example of UL transmission control according to the first example.

[0030] Figure 14 This is a diagram showing an example of UL transmission control according to the second example.

[0031] Figure 15 This is a diagram showing another example of UL transmission control according to the second example.

[0032] Figure 16 This is a diagram showing another example of UL transmission control according to the second example.

[0033] Figure 17 This is a diagram showing another example of UL transmission control according to the second example.

[0034] Figure 18 This is a diagram showing another example of UL transmission control according to the second example.

[0035] Figure 19 This is a diagram showing an example of a schematic configuration of a wireless communication system according to an embodiment.

[0036] Figure 20 This is a diagram showing an example of the configuration of a base station according to one embodiment.

[0037] Figure 21 This is a diagram showing an example of the configuration of a user terminal according to an embodiment.

[0038] Figure 22 This is a diagram showing an example of the hardware configuration of a base station and a user terminal according to one embodiment. DETAILED DESCRIPTION

[0039] <Business Type>

[0040] Future wireless communication systems (e.g., NR) envision further advancements in mobile broadband (e.g., enhanced Mobile Broadband (eMBB)), machine-type communications that enable a large number of simultaneous connections (e.g., massive Machine Type Communications (mMTC) and the Internet of Things (IoT)), and ultra-reliable and low-latency communications (e.g., Ultra-Reliable and Low-Latency Communications (URLLC)). These types of services (also referred to as services, service types, communication types, use cases, and the like) are envisioned. For example, URLLC requires lower latency and higher reliability than eMBB.

[0041] The service type may also be identified in the physical layer based on at least one of the following.

[0042] Logical channels with different priorities

[0043] Modulation and Coding Scheme (MCS) table (MCS index table)

[0044] Channel Quality Indication (CQI) table

[0045] DCI format

[0046] Radio Network Temporary Identifier (RNTI) used for scrambling (masking) of the (additional) cyclic redundancy check (CRC) bits included in the DCI (DCI format)

[0047] RRC (Radio Resource Control) parameters

[0048] Specific RNTI (e.g., RNTI for URLLC, MCS-C-RNTI, etc.)

[0049] Search space

[0050] Specific fields within DCI (e.g., newly added fields or reuse of existing fields)

[0051] Specifically, the service type of HARQ-ACK for PDSCH can also be determined based on at least one of the following.

[0052] The MCS index table used to determine at least one of the modulation order, target coding rate, and transport block size (TBS) of the PDSCH (e.g., whether to use MCS index table 3)

[0053] RNTI used for CRC scrambling of the DCI used for scheduling the PDSCH (e.g., which of the C-RNTI or MCS-C-RNTI is CRC-scrambled)

[0054] In addition, the service type of the SR may also be determined based on a higher-layer parameter used as an SR identifier (SR-ID). The higher-layer parameter may also indicate whether the service type of the SR is eMBB or URLLC.

[0055] In addition, the service type of the CSI may also be determined based on the configuration information (CSIreportSetting) related to the CSI report, the DCI type used in the trigger, or the DCI transmission parameters. The configuration information, DCI type, etc. may also indicate whether the service type of the CSI is eMBB or URLLC. In addition, the configuration information may also be a higher-layer parameter.

[0056] In addition, the service type of PUSCH can also be determined based on at least one of the following.

[0057] The MCS index table used to determine at least one of the modulation order, target coding rate, and TBS of the PUSCH (e.g., whether to use MCS index table 3)

[0058] RNTI used for CRC scrambling of the DCI used for scheduling the PUSCH (e.g., which of the C-RNTI or MCS-C-RNTI is CRC-scrambled)

[0059] The service type may be associated with communication requirements (e.g., requirements and conditions such as delay and error rate), data type (e.g., voice, data), and the like.

[0060] The difference between the requirements of URLLC and eMBB can be that the latency of URLLC is smaller than the latency of eMBB, or that the requirements of URLLC include reliability requirements.

[0061] For example, the requirements for the user (U) plane delay of eMBB may also include a U-plane delay of 4ms for the downlink and a U-plane delay of 4ms for the uplink. On the other hand, the requirements for the U-plane delay of URLLC may also include a U-plane delay of 0.5ms for the downlink and a U-plane delay of 0.5ms for the uplink. In addition, the requirements for the reliability of URLLC may also include a 32-byte error rate of 10 for a U-plane delay of 1ms. -5 .

[0062] Furthermore, enhanced Ultra Reliable and Low Latency Communications (eURLLC) is being studied to improve the reliability of services used primarily for unicast data. Hereinafter, URLLC and eURLLC will be referred to simply as URLLC when no distinction is made.

[0063] <Priority Setting>

[0064] In NR versions later than Rel. 16, studies are underway to establish multiple levels of priority (e.g., two levels) for specific signals or channels. For example, it is envisioned that each signal or channel corresponding to a different service type (also known as service, service type, communication type, use case, etc.) would be assigned a separate priority level and communication would be controlled (e.g., transmission control in the event of a conflict). This would allow different priorities to be set for the same signal or channel based on service type, etc., to control communication.

[0065] Priority can also be set for at least one of a signal (e.g., UCI such as HARQ-ACK, reference signal, etc.), a channel (e.g., PDSCH, PUSCH, PUCCH, etc.), a reference signal (e.g., channel state information (CSI), sounding reference signal (SRS), etc.), a scheduling request (SR), and a HARQ-ACK codebook. Furthermore, priority can also be set separately for the PUCCH used for SR transmission, the PUCCH used for HARQ-ACK transmission, and the PUCCH used for CSI transmission.

[0066] The priority may be defined by a first priority (eg, high) and a second priority (eg, low) lower than the first priority. Alternatively, three or more priority levels may be set.

[0067] For example, the priority may be set for HARQ-ACK for dynamically scheduled PDSCH, HARQ-ACK for semi-persistent PDSCH (SPSPDSCH), and HARQ-ACK for SPS PDSCH release. Alternatively, the priority may be set for the HARQ-ACK codebook corresponding to these HARQ-ACKs. In addition, when setting a priority for PDSCH, the priority of PDSCH may be replaced with the priority of HARQ-ACK for that PDSCH.

[0068] Furthermore, priority may be set for PUSCH based on dynamic grant, PUSCH based on configured grant, and the like.

[0069] Information related to the priority can also be notified to the UE from the base station using at least one of the higher layer signaling and the DCI. For example, the priority of the scheduling request can also be set by a higher layer parameter (e.g., schedulingRequestPriority). The priority of the HARQ-ACK for the PDSCH (e.g., dynamic PDSCH) scheduled by DCI can also be notified by the DCI. The priority of the HARQ-ACK for the SPS PDSCH can be set by a higher layer parameter (e.g., HARQ-ACK-Codebook-indicator-forSPS) or by a DCI indicating the activation of the SPS PDSCH. The P-CSI / SP-CSI sent via the PUCCH can also be set with a specific priority (e.g., low). On the other hand, the A-CSI / SP-CSI sent via the PUSCH can also be notified of its priority via DCI (e.g., triggering DCI or activation DCI).

[0070] The priority of a PUSCH based on a dynamic grant can also be notified by the DCI that schedules the PUSCH. The priority of a PUSCH based on a set grant can also be set by a higher-layer parameter (e.g., priority). A-SRS triggered by P-SRS / SP-SRS and DCI (e.g., DCI format 0_1 / DCI format 2_3) can also be assigned a specific priority (e.g., low).

[0071] (Overlap of UL transmission)

[0072] In the case where multiple UL signals / UL channels overlap (or collide), the UE may also control UL transmission based on priority.

[0073] Overlapping of multiple UL signals / UL channels may also refer to overlapping time resources (or time resources and frequency resources) of multiple UL signals / UL channels, or overlapping transmission timing of multiple UL signals / UL channels. Time resources may also be replaced by time domain or time domain. Time resources may also be represented by symbol, slot, subslot, or subframe units.

[0074] The overlapping of multiple UL signals / UL channels in the same UE (e.g., intra-UE) may also mean that the multiple UL signals / UL channels overlap at least in the same time resource (e.g., symbol). In addition, the collision of UL signals / UL channels in different UEs (e.g., inter-UE) may also mean that the multiple UL signals / UL channels overlap in the same time resource (e.g., symbol) and frequency resource (e.g., RB).

[0075] For example, when multiple UL signals / UL channels with the same priority overlap, the UE controls so that the multiple UL signals / UL channels are multiplexed into one UL channel for transmission (refer to Figure 1 A).

[0076] exist Figure 1 A shows a case where a HARQ-ACK (or a PUCCH for transmitting HARQ-ACK) with a first priority (high) set is overlapped with UL data / UL-SCH (or a PUSCH for transmitting UL data / UL-SCH) with a first priority (high). In this case, the UE multiplexes (or maps) the HARQ-ACK onto the PUSCH and transmits both the UL data and the HARQ-ACK.

[0077] In the case where multiple UL signals / UL channels with different priorities overlap, the UE may also control the UL transmission with a higher priority (for example, giving priority to the UL transmission with a higher priority) and not perform the UL transmission with a lower priority (for example, discarding it) (refer to Figure 1 B).

[0078] exist Figure 1Figure B shows a case where UL data / HARQ-ACK (or the UL channel for transmitting UL data / HARQ-ACK) set to a first priority (high) overlaps with UL data / HARQ-ACK (or the UL channel for transmitting UL data / HARQ-ACK) set to a second priority (low). In this case, the UE controls the UL data / HARQ-ACK to be discarded and prioritizes the transmission of the higher-priority UL data / HARQ-ACK. Furthermore, the UE may also change (e.g., delay or offset) the transmission timing of the lower-priority UL transmission.

[0079] In the case where more than two (or more than three) UL signals / UL channels overlap in the time domain (refer to Figure 2 A), transmission can also be controlled in two steps. In the first step, UL transmissions with the same priority are multiplexed into one UL channel (refer to Figure 2 B) In the second step, control can also be performed so that among UL transmissions with different priorities, the UL transmission with a higher priority is transmitted first, and the UL transmission with a lower priority is discarded (refer to Figure 2 C).

[0080] (Semi-continuous scheduling)

[0081] In NR, Semi-Persistent Scheduling (SPS) is supported, which is configured via higher-layer signaling (e.g., RRC). SPS can also be configured per serving cell, per BWP, or per carrier. For example, activation / deactivation of DL SPS can also be controlled independently between cells, between BWPs, or between carriers.

[0082] DL SPS can also be applied to PDSCH. In this case, PDSCH can also be activated / deactivated by PDCCH (or DCI). Deactivation can also be replaced by release. When the activation of DL SPS is indicated by PDCCH, the UE can also control the reception operation of the semi-persistent PDSCH that is controlled to be sent / allocated using specific transmission conditions. The reception operation can also be replaced by monitoring, decoding, or demodulation of PDCCH (or DCI).

[0083] The transmission conditions / transmission parameters applied to the semi-persistent PDSCH may also be set via at least one of the PDCCH and higher-layer signaling. The transmission conditions may also include, for example, at least one of a specific RNTI applied to the PDSCH or the PDCCH (or DCI / DCI format) that schedules the PDSCH, the number of HARQ processes for SPS, and a periodicity.

[0084] Figure 3 An example of a case where a semi-persistent PDSCH (SPS PDSCH) is transmitted is shown. Here, the case where the period (Periodicity) is set to 20 ms and the applied subcarrier spacing is set to 15 kHz is shown. Of course, the PDSCH transmission conditions are not limited to these.

[0085] exist Figure 3 In the case of a UE, the network uses DCI to instruct activation of the SPS PDSCH. The DCI instructing activation of the SPS PDSCH may be, for example, DCI format 1_0 / 1_1. Upon detecting this DCI, the UE assumes (or expects) that the SPS PDSCH is transmitted at a specific period and performs reception processing of the SPS PDSCH.

[0086] The UE may also provide feedback on the HARQ-ACK for the SPS PDSCH. For example, the UE may also use the PUCCH to send the HARQ-ACK for the SPS PDSCH. Conditions such as the transmission timing (e.g., K0) of the HARQ-ACK (or PUCCH) may also be notified to the UE using the DCI indicating the activation of the SPS PDSCH. Alternatively, conditions such as the transmission timing (e.g., K0) of the HARQ-ACK (or PUCCH) may also be set through higher-layer signaling (e.g., dl-DataToUL-ACK).

[0087] In the case of receiving the DCI indicating the deactivation of the SPS PDSCH, the UE may also control not to perform the reception processing of the SPS PDSCH. The UE may also provide feedback of the HARQ-ACK for the DCI indicating the deactivation of the SPS PDSCH. For example, the UE may also use the PUCCH to send the HARQ-ACK for the DCI. The conditions such as the transmission timing (e.g., K1) of the HARQ-ACK (or, PUCCH) may also be notified to the UE using the DCI indicating the deactivation of the SPS PDSCH (refer to Figure 4 ).

[0088] It is also conceivable that HARQ-ACK for the SPS PDSCH overlaps with other UL transmissions (eg, PUSCH / SRS) in the time domain. In this case, the priority of each UL transmission may be considered to control the UL transmission.

[0089] The overlap between HARQ-ACK for SPS PDSCH and other UL transmissions can also be controlled not to occur under specific conditions. For example, when the priority of HARQ-ACK for SPS PDSCH is high (high), it is also possible to control so that other UL transmissions (PUSCH / PUCCH) with low priority (low) are not dynamically scheduled in the area overlapping with the HARQ-ACK. The UE may also not assume that there is overlap with HARQ-ACK for SPS PDSCH (high), and other UL transmissions with low priority are scheduled through DCI.

[0090] On the other hand, when the priority of HARQ-ACK for SPS PDSCH is low, other UL transmissions (PUSCH / PUCCH) may be dynamically scheduled or semi-statically set in the region overlapping with the HARQ-ACK.

[0091] (Cancel indication sent by UL)

[0092] Consider a scenario where, with the introduction of traffic types of different priorities, it is desirable to prioritize the transmission of subsequently scheduled UL transmissions over the initially scheduled UL transmissions. For example, consider a scenario where, after scheduling a first UL transmission (e.g., eMBB) in a first UE, it is desirable to schedule a second UL transmission (e.g., URLLC) in a second UE using the resources utilized by the first UL transmission.

[0093] Therefore, it is considered to cancel the UL channel / signal (eg, PUSCH) that is originally scheduled before it is actually transmitted, and schedule other UL channels / signals in the resources of the canceled UL channel / signal.

[0094] Therefore, in order to cancel the transmission of a specific UL transmission (or UL signal / UL channel), a UL cancellation indication is being studied. The UL cancellation indication may also be referred to as a UL cancellation indication.

[0095] For example, the UL cancellation indication enables UL transmission (eg, URLLC UL transmission) of other UEs by canceling the UL transmission (eg, eMBB UL transmission) scheduled / set for one UE (eg, referring to Figure 5 ). Figure 5An example is shown in which, when the eMBB UL transmission (eg, PUSCH#1) scheduled in UE#1 overlaps with the UL transmission (eg, PUSCH#2) scheduled in URLLC UE#2, PUSCH#1 is canceled using a UL cancellation indication.

[0096] The UL cancellation instruction may specify at least the resources (e.g., frequency resources (PRBs) and time resources (symbols)) for canceling specific UL transmissions. Here, a case is shown where part of the resources used for PUSCH#1 transmission corresponds to the resources specified by the UL cancellation instruction.

[0097] exist Figure 5 In the case where UE#1 detects the UL cancellation instruction, the UE#1 cancels (cancels, stops) the UL transmission. The cancellation of UL transmission may be replaced by preempting UL transmission, prioritizing UL transmission, or replacing UL transmission.

[0098] The UL cancellation indication may also interrupt / postpone scheduled UL transmission for the UE that received the UL cancellation indication. In addition, the UL cancellation indication may also be used by the UE that received the UL cancellation indication to notify resources that are not intended for any transmission by the UE.

[0099] To implement UL cancellation indication, at least group common (GC) downlink control information (DCI, physical downlink control channel (PDCCH)) can be supported for cancellation indication. This DCI can also use a specific DCI format (for example, DCI format 2_4).

[0100] For example, information related to frequency resources (eg, PRBs) and time resources (eg, symbols) for canceling UL transmission may be notified to one or more UEs via a specific DCI format. UE-specific DCI for UL cancellation indication may also be supported.

[0101] Under specific conditions, the UL cancellation indication (e.g., DCI formats 2_4) may be applied only to a specific UL transmission, or to the DCI indicating / scheduling the specific UL transmission (e.g., UL grant). The specific UL transmission may be at least one of the PUSCH and the SRS. The specific condition may also be that the last symbol (ending symbol) of the PDCCH used in transmitting the UL grant is earlier than the first symbol of the PDCCH used in transmitting the UL cancellation indication.

[0102] If certain conditions are met, the UE will cancel the UL transmission (eg, DG-PUSCH#1) using the resources notified by the UL cancellation indication (see Figure 6 ).

[0103] On the other hand, when a specific condition is not met, the UE may not cancel the UL transmission using the resources notified by the UL cancellation indication. For example, it is assumed that the UE receives an UL grant that schedules the UL transmission using the resources notified by the UL cancellation indication. In this case, when the last codeword of the PDCCH used in the transmission of the UL grant is not earlier than the beginning codeword of the PDCCH used in the transmission of the UL cancellation indication, the UE may also perform the UL transmission (for example, DG-PUSCH#2) using the resources notified by the UL cancellation indication (refer to Figure 6 ). In addition, in this case, DG-PUSCH#2 can also be scheduled in an area that does not overlap with the cancelled DG-PUSCH#1.

[0104] The UL transmission to which the UL cancellation indication (e.g., UL Cl) notified via DCI is applied may also be determined based on the presence or absence of a higher layer parameter setting / the priority set in the UL transmission.

[0105] For example, when a UL cancellation indication (e.g., UL Cl) and a priority indication (e.g., intra-UE priority indicator) are set / applied for a certain UE, the UL transmission to which the UL cancellation indication is applied may also be determined based on whether or not a specific higher-layer parameter (e.g., applicability for CI) is set / notified.

[0106] When this specific higher-layer parameter is set, the UE may also apply the UL cancel indication only to UL transmissions with a low priority (for example, UL transmissions with the second priority (low) set). That is, when this specific higher-layer parameter is set, the UE may not apply the UL cancel indication to UL transmissions with a high priority (for example, UL transmissions with the first priority (high) set). The operation of applying the UL cancel indication only to UL transmissions for which the second priority (low) is notified / set may also be referred to as the first UE operation (Behavioure#1).

[0107] If no specific higher layer parameters are set, the UE may apply the UL cancellation instruction regardless of the priority of the UL transmission. The operation of applying the UL cancellation instruction regardless of the priority of the UL transmission may also be referred to as the second UE operation (Behavioure #2).

[0108] Alternatively, the UL transmission (eg, priority, etc.) to which the UL cancellation indication is applied may also be configured / notified to the UE via specific higher layer parameters.

[0109] In this way, by controlling the cancellation of UL transmission based on the UL cancellation indication included in the DCI, the scheduling of UL transmissions of different service types can be flexibly controlled.

[0110] On the other hand, when multiple UL transmissions overlap, how to control UL transmission control based on UL transmission cancellation information becomes a problem. For example, when multiple UL transmissions overlap, how to control transmission control based on priority and transmission control based on UL cancellation instructions becomes a problem.

[0111] For example, when the first UL transmission overlaps with the second UL transmission, how to control the application of priority-based transmission control (eg, multiplexing / dropping) and UL cancellation indication-based transmission control (eg, UL transmission cancellation) becomes a problem.

[0112] As one aspect of this embodiment, the inventors of the present invention focused on the fact that when multiple UL transmissions overlap, there are UL transmission controls based on priority and UL transmission controls based on UL cancellation indications, studied the application of multiple UL transmission controls, and came up with one aspect of this embodiment.

[0113] In addition, the inventors of the present invention focused on the overlap of HARQ-ACK (high) for SPS PDSCH and other UL transmissions (for example, PUSCH based on set permission), and the overlap of HARQ-ACK (low) for SPS PDSCH and other UL transmissions, studied the application of multiple UL transmission controls in this case, and came up with a method of the present embodiment.

[0114] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. The structures described in each embodiment may be applied individually or in combination.

[0115] In addition, in the present disclosure, “A / B” may be replaced by at least one of A and B, and “A / B / C” may be replaced by at least one of A, B, and C.

[0116] In the following description, a case where two UL transmissions, a first UL transmission and a second UL transmission, overlap or collide is taken as an example, but the present invention is also applicable to a case where three or more UL transmissions overlap or collide.

[0117] In the following description, the PUCCH for HARQ-ACK (first method) for a dynamically scheduled PDSCH or the PUCCH for HARQ-ACK (second method) for an SPS PDSCH is used as an example for the first UL transmission, but the present invention is not limited to this. The first UL transmission may be a PUCCH for transmitting UCI other than HARQ-ACK (e.g., SR, CSI), or other UL transmissions other than PUCCH. Furthermore, the PUSCH is used as an example for the second UL transmission, but the present invention is not limited to this. Other UL transmissions (e.g., SRS) may also be used as the second UL transmission.

[0118] Furthermore, in the following description, the first UL transmission may be a UL signal / UL channel that is not canceled by a UL cancellation indication, and the second UL transmission may be a UL signal / UL channel (e.g., PUSCH / SRS) that can be canceled by a UL cancellation indication. Alternatively, both the first UL transmission and the second UL transmission may be UL signals / UL channels that can be canceled by a UL cancellation indication.

[0119] (First Method)

[0120] In the first embodiment, a case will be described where UL transmission control based on priority and UL transmission control based on a UL cancel instruction are applied to the first UL transmission and the second UL transmission that overlap.

[0121] Priority-based UL transmission control may also be a first operation of multiplexing / mapping the first UL transmission and the second UL transmission to a common UL channel based on priority, or a second operation of preferentially transmitting one of the first UL transmission and the second UL transmission while discarding the other. The first operation may also be applied when the first UL transmission and the second UL transmission have the same priority, and the second operation may also be applied when the first UL transmission and the second UL transmission have different priorities.

[0122] UL transmission control based on a UL cancel indication (e.g., DCI formats 2_4) may also be an operation of canceling UL transmission using at least a portion of the resources notified by the UL cancel indication. UL transmission control based on a UL cancel indication may also be applied when the last symbol (ending symbol) of the PDCCH used for transmitting the UL grant is earlier than the first symbol of the PDCCH used for transmitting the UL cancel indication.

[0123] When the first UL transmission and the second UL transmission overlap, the UE may also control the UL transmission by using at least one of the following operations 1-1 to 1-3.

[0124] <Operation 1-1>

[0125] The UE controls so that one of the first transmission control (eg, UL transmission control based on priority) and the second transmission control (eg, UL transmission control based on UL cancellation indication) is always applied first (or preferentially), and then the other is applied.

[0126] For example, the UE may also apply / prioritize UL transmission control based on priority (eg, UL intra-UE multiplexing / prioritization), and then apply UL transmission control based on a UL cancellation indication (UL cancelation).

[0127] Figure 7 This shows a case where a first UL transmission with the second priority (low) set overlaps with a second UL transmission with the second priority (low), and the second UL transmission uses part / all of the resources notified by the UL cancel indication.

[0128] The first UL transmission is HARQ-ACK for a PDSCH scheduled by DCI (or a PUCCH for the HARQ-ACK transmission). The second UL transmission is PUSCH dynamically scheduled by DCI (or UL data transmitted by the PUSCH).

[0129] The UE can also determine the transmission timing of HARQ-ACK (or PUCCH for HARQ-ACK) based on the information (e.g., K) included in the DCI that schedules the PDSCH. Here, the offset between the PDSCH and the PUCCH for HARQ-ACK meets a specific timeline (e.g., greater than N1+d 1，1 +1 symbol). N1 may also be a value determined based on at least one of the PDSCH processing capability, the subcarrier spacing, and a higher-layer parameter (dmrs-AdditionalPosition) related to the additional position of the DMRS. 1，1 It may also be a value determined based on the PDSCH processing capability, the PDSCH mapping type, the corresponding PDCCH, and the number of PDSCH symbols.

[0130] The UE may also determine the transmission timing of the PUSCH based on the information (e.g., K) included in the DCI that schedules the PUSCH. Here, the case where the offset between the DCI (or PDCCH) and the PUSCH satisfies a specific timeline (e.g., greater than N2+d 2，1 +1 symbol). N2 may also be a value determined based on at least one of the PUSCH processing capability, the subcarrier spacing, and a higher-layer parameter (dmrs-AdditionalPosition) related to the additional position of the DMRS. 2，1 It may also be a value determined based on the structure of the PUSCH allocation symbol. For example, when the first symbol allocated to the PUSCH is composed of only DMRS, d2,1=0. In other cases, d 2，1 =1.

[0131] The UE may also determine the location of the UL cancellation resource based on the UL cancellation indication. Here, the offset between the DCI (or PDCCH) and the UL cancellation resource satisfies a specific timeline (eg, greater than T' proc，2 T' proc，2 It can also be N2+d 2，1 N2 can also be a value determined based on at least one of the PUSCH processing capability, subcarrier spacing, and a higher-layer parameter (dmrs-additionalPosition) related to the additional position of DMRS. In addition, N2 can also apply UE capability 2. 2，1 It can also be done by d offset 2 -μUL / 2 -μ Indicates. offset It may also be a value notified by a higher-layer parameter (eg, delta_offset). μ may correspond to the minimum subcarrier spacing among the subcarrier spacing structure of the PDCCH and the minimum subcarrier spacing structure set by a higher-layer parameter.

[0132] In addition, when a specific timeline is not met, the priority-based transmission control / UL cancel instruction-based transmission control may not be applied.

[0133] In addition, Figure 7, shows a case where the PDCCH (e.g., the last symbol) used for transmission of DCI scheduling a PUSCH comes before the PDCCH (e.g., the first symbol) used for transmission of a UL cancel indication. Also, shows a case where the PDCCH (e.g., the last symbol) used for transmission of DCI scheduling a PDSCH comes before the PDCCH (e.g., the first symbol) used for transmission of a UL cancel indication.

[0134] The UE first performs UL transmission control based on priority. Figure 7 In this scenario, the UE multiplexes a first UL transmission and a second UL transmission of the same priority onto a common UL channel. Here, the UE controls the first UL transmission (HARQ-ACK) to be multiplexed onto the second UL transmission (here, the PUSCH). The multiplexed UL channels can be pre-defined in the specification or notified to the UE from the network via DCI / higher layer signaling.

[0135] Then, the UE performs UL transmission control based on the UL cancellation instruction. Figure 7 In the example, since the resources notified by the UL cancellation indication overlap with the allocated resources of the second UL transmission (here PUSCH) in the time domain, the UE cancels the second UL transmission. Here, the HARQ-ACK (first UL transmission) multiplexed into the PUSCH is also canceled.

[0136] Furthermore, when the last symbol of the PDCCH used for transmission of the DCI scheduling the PUSCH is later than the first symbol of the PDCCH used for transmission of the UL cancel instruction, the second UL transmission may be transmitted without being canceled.

[0137] Figure 8 Shown in Figure 7 The second UL transmission is based on a PUSCH with a configured grant (e.g., a PUSCH not dynamically scheduled via DCI). This shows a case where the last symbol of the PDCCH used to transmit the DCI that schedules the PDSCH is later than the first symbol of the PDCCH used to transmit the UL cancel indication.

[0138] First, the UE performs UL transmission control based on priority. Figure 8 In the example, the UE multiplexes the first UL transmission and the second UL transmission of the same priority into a common UL channel. Here, the UE controls so that the first UL transmission (HARQ-ACK) is multiplexed into the second UL transmission (here, the PUSCH based on the set grant).

[0139] Then, the UE performs UL transmission control based on the UL cancellation instruction. Figure 8In the example, since the resources notified by the UL cancellation indication overlap with the allocated resources of the second UL transmission (here PUSCH) in the time domain, the UE cancels the second UL transmission. Here, the HARQ-ACK (first UL transmission) multiplexed into the PUSCH is also canceled.

[0140] Figure 9 The following case is shown: a first UL transmission with a first priority (high) is overlapped with a second UL transmission with a second priority (low), and the second UL transmission uses part / all of the resources notified by the UL cancel indication.

[0141] The first UL transmission is HARQ-ACK for a PDSCH scheduled by DCI (or a PUCCH for the HARQ-ACK transmission). The second UL transmission is PUSCH dynamically scheduled by DCI (or UL data transmitted by the PUSCH).

[0142] In addition, Figure 9 , the case where the last symbol of the PDCCH used for the transmission of the DCI scheduling the PUSCH is earlier than the first symbol of the PDCCH used for the transmission of the UL cancel indication is shown. Furthermore, the case where the last symbol of the PDCCH used for the transmission of the DCI scheduling the PDSCH is earlier than the first symbol of the PDCCH used for the transmission of the UL cancel indication is shown.

[0143] First, the UE performs UL transmission control based on priority. Figure 9 In the process, the UE prioritizes the first UL transmission with a higher priority and discards (or cancels) the second UL transmission with a lower priority.

[0144] Then, the UE performs UL transmission control based on the UL cancellation instruction. Figure 9 In the UE, the resources notified by the UL cancellation indication overlap with the allocated resources of the second UL transmission (here, PUSCH) in the time domain, but the second UL transmission is discarded. Therefore, the UE can also control the transmission of the first UL transmission without performing the second UL transmission.

[0145] Figure 10 This shows a case where a first UL transmission set with the second priority (low) overlaps with a second UL transmission set with the first priority (high), and the second UL transmission uses part / all of the resources notified by the UL cancel indication.

[0146] The first UL transmission is HARQ-ACK for a PDSCH scheduled by DCI (or a PUCCH for the HARQ-ACK transmission). The second UL transmission is PUSCH dynamically scheduled by DCI (or UL data transmitted by the PUSCH).

[0147] In addition, Figure 10 , the case where the last symbol of the PDCCH used for the transmission of the DCI scheduling the PUSCH is earlier than the first symbol of the PDCCH used for the transmission of the UL cancel indication is shown. Furthermore, the case where the last symbol of the PDCCH used for the transmission of the DCI scheduling the PDSCH is earlier than the first symbol of the PDCCH used for the transmission of the UL cancel indication is shown.

[0148] First, the UE performs UL transmission control based on priority. Figure 10 In the process, the UE prioritizes the second UL transmission with a higher priority and discards (or cancels) the first UL transmission with a lower priority.

[0149] Then, the UE performs UL transmission control based on the UL cancellation instruction. Figure 10 In the embodiment, since the resources notified by the UL cancellation indication overlap with the allocated resources of the second UL transmission (here, PUSCH) in the time domain, the UE cancels the second UL transmission.

[0150] In this way, by initially applying the UL transmission control based on the priority and then applying the UL transmission control based on the UL cancellation indication, the UL transmission control based on the priority can be performed without being affected by the UL cancellation indication.

[0151] In addition, the UE may apply / prioritize UL transmission control based on the UL cancellation indication (UL cancellation), and then apply UL transmission control based on priority (eg, UL intra-UE multiplexing / prioritization).

[0152] <Operation 1-2>

[0153] The UE may also autonomously determine the transmission control to be applied initially (or preferentially) between the first transmission control (e.g., UL transmission control based on priority) and the second transmission control (e.g., UL transmission control based on a UL cancellation indication). Alternatively, the transmission control to be applied initially (or preferentially) may be set to the UE by the network through higher layer signaling or the like.

[0154] <Operation 1-3>

[0155] The UE may also determine, based on a specific condition, which transmission control to apply first (or preferentially) between the first transmission control (e.g., priority-based UL transmission control) and the second transmission control (e.g., UL transmission control based on a UL cancellation indication). The specific condition may also be, for example, the reception timing of the corresponding DCI (or PDCCH).

[0156] For example, the UE may determine the order of applying the UL transmission control based on the reception timing of the DCI corresponding to the first transmission control / the DCI corresponding to the second transmission control and the DCI corresponding to the UL cancel indication.

[0157] <Scenario 1>

[0158] Consider the following scenario: After receiving at least one of the DCI scheduling the PDSCH and the DCI scheduling the PUSCH, the UE receives DCI specifying an UL cancellation indication. This UL cancellation indication specifies the resources to be used for PUSCH transmission. In this case, the UE may first apply priority-based UL transmission control, and then apply UL transmission control based on the UL cancellation indication. This operation can also be applied regardless of the HARQ-ACK priority or the PUSCH priority.

[0159] Figure 11 This shows a case where a first UL transmission with the second priority (low) set overlaps with a second UL transmission with the second priority (low), and the second UL transmission uses part / all of the resources notified by the UL cancel indication.

[0160] The first UL transmission is HARQ-ACK for a PDSCH scheduled by DCI (or a PUCCH for the HARQ-ACK transmission). The second UL transmission is PUSCH dynamically scheduled by DCI (or UL data transmitted by the PUSCH).

[0161] The UE can also determine the transmission timing of HARQ-ACK (or PUCCH for HARQ-ACK) based on the information contained in the DCI that schedules PDSCH. Here, it is shown that the offset between PDSCH and PUCCH for HARQ-ACK meets a specific time line (> N1 + d 1，1 +1 symbol).

[0162] The UE may also determine the transmission timing of the PUSCH based on the information contained in the DCI that schedules the PUSCH. Here, it is shown that the offset between the DCI (or PDCCH) and the PUSCH satisfies a specific time line (> N2 + d 2，1+1 symbol).

[0163] The UE may also determine the location of the UL cancellation resource based on the UL cancellation indication. Here, it is shown that the offset between the DCI (or PDCCH) and the UL cancellation resource meets a specific timeline (>T' proc，2 code element).

[0164] In addition, when a specific timeline is not met, the priority-based transmission control / UL cancel instruction-based transmission control may not be applied.

[0165] In addition, Figure 11 1 shows a case where, after receiving / detecting DCI scheduling PDSCH and DCI scheduling PUSCH, DCI indicating UL cancellation is received / detected. In this case, the UE performs UL transmission control based on the UL cancellation instruction after performing UL transmission control based on priority.

[0166] exist Figure 11 In the UE, the UE first performs UL transmission control based on priority. Figure 11 In the embodiment, the UE multiplexes the first UL transmission and the second UL transmission of the same priority into a common UL channel. Here, the UE controls so that the first UL transmission (HARQ-ACK) is multiplexed into the second UL transmission (here, PUSCH).

[0167] Then, the UE performs UL transmission control based on the UL cancellation instruction. Figure 11 In the example, since the resources notified by the UL cancellation indication overlap with the allocated resources of the second UL transmission (here PUSCH) in the time domain, the UE cancels the second UL transmission. Here, the HARQ-ACK (first UL transmission) multiplexed into the PUSCH is also canceled.

[0168] Figure 12 Shown in Figure 11 In the case where the first priority (high) is set in the first UL transmission. Other structures and Figure 11 same.

[0169] exist Figure 12 In the UE, the UE first performs UL transmission control based on priority. Figure 12 In the process, the UE prioritizes the first UL transmission with a higher priority and discards (or cancels) the second UL transmission with a lower priority.

[0170] Then, the UE performs UL transmission control based on the UL cancellation instruction. Figure 12In the UE, the resources notified by the UL cancellation indication overlap with the allocated resources of the second UL transmission (here, PUSCH) in the time domain, but the second UL transmission is discarded. Therefore, the UE can also control the transmission of the first UL transmission without performing the second UL transmission.

[0171] <Scenario 2>

[0172] Consider the following scenario: After receiving DCI specifying an UL cancellation indication, the UE receives DCI scheduling a PDSCH (or HARQ-ACK corresponding to the PDSCH) and a PUSCH based on a configured grant, and the UL cancellation indication specifies the resources to be used for PUSCH transmission. In this case, the UE may first apply UL transmission control based on the UL cancellation indication, and then apply UL transmission control based on priority. This operation can also be applied regardless of the HARQ-ACK priority / PUSCH priority.

[0173] When the second UL transmission is based on the PUSCH configured with the grant, the UE may determine the order of applying the UL transmission control based on the reception timing of the DCI specifying the UL cancel indication and the reception timing of the PUSCH configured with the grant.

[0174] Figure 13 This shows a case where a first UL transmission with the second priority (low) set overlaps with a second UL transmission with the second priority (low), and the second UL transmission uses part / all of the resources notified by the UL cancel indication.

[0175] The first UL transmission is HARQ-ACK for a PDSCH scheduled by DCI (or a PUCCH for the HARQ-ACK transmission). The second UL transmission is PUSCH based on a configuration grant (or UL data transmitted on the PUSCH).

[0176] The UE can also determine the transmission timing of HARQ-ACK (or PUCCH for HARQ-ACK) based on the information contained in the DCI that schedules PDSCH. Here, it is shown that the offset between PDSCH and PUCCH for HARQ-ACK meets a specific time line (> N1 + d 1，1 +1 symbol).

[0177] The UE may also determine the location of the UL cancellation resource based on the UL cancellation indication. Here, it is shown that the offset between the DCI (or PDCCH) and the UL cancellation resource meets a specific timeline (>T' proc，2 code element).

[0178] In addition, if a specific timeline is not met, transmission control based on priority and transmission control based on UL cancellation indication may not be applied.

[0179] In addition, Figure 13 1 shows a case where, after receiving / detecting DCI indicating UL cancellation, the UE receives / detects DCI scheduling PDSCH and DCI scheduling PUSCH. In this case, the UE performs UL transmission control based on the UL cancellation instruction and then performs UL transmission control based on priority.

[0180] exist Figure 13 In the UL cancellation instruction, the UE first performs UL transmission control based on the UL cancellation instruction. Figure 13 In the embodiment, since the resources notified by the UL cancellation indication overlap with the allocated resources of the second UL transmission (here, PUSCH) in the time domain, the second UL transmission is canceled.

[0181] Then, in Figure 13 However, the second UL transmission has been cancelled. Since the first UL transmission and the second UL transmission do not overlap, the UE can also control the transmission of the first UL transmission.

[0182] In this way, by determining the order of UL transmission control to be applied based on the reception timing of DCI, even when overlapping UL transmissions have the same priority, the UL transmissions can be performed without canceling one of them.

[0183] (Second Method)

[0184] In the second embodiment, a case where the first UL transmission is HARQ-ACK for the SPS PDSCH (or a PUCCH for the HARQ-ACK transmission) will be described. The first and second embodiments may also be applied in combination.

[0185] When the second UL transmission is UL transmission not scheduled by DCI (for example, PUSCH based on a configuration grant), the UE may control the UL transmission by using at least one of the following operations 2-1-1 to 2-1-2.

[0186] <Operation 2-1-1>

[0187] The UE controls so that one of the first transmission control (eg, UL transmission control based on priority) and the second transmission control (eg, UL transmission control based on UL cancellation indication) is applied first (or preferentially), and then the other is applied.

[0188] For example, the UE may also apply / prioritize UL transmission control based on priority (eg, UL intra-UE multiplexing / prioritization), and then apply UL transmission control based on a UL cancellation indication (UL cancelation).

[0189] Figure 14 The diagram shows a case where a first UL transmission with a first priority (high) set overlaps with a second UL transmission with a second priority (low) set, and the second UL transmission uses part / all of the resources notified by the UL cancel indication.

[0190] The first UL transmission is HARQ-ACK for the SPS PDSCH activated by DCI (or PUCCH for the HARQ-ACK transmission). The second UL transmission is PUSCH based on the configuration grant (or UL data transmitted on the PUSCH).

[0191] First, the UE performs UL transmission control based on priority. Figure 14 In the process, the UE prioritizes the first UL transmission with a higher priority and discards (or cancels) the second UL transmission with a lower priority.

[0192] Then, the UE performs UL transmission control based on the UL cancellation instruction. Figure 14 In the UE, the resources notified by the UL cancellation indication overlap with the allocated resources of the second UL transmission (here, PUSCH) in the time domain, but the second UL transmission is discarded. Therefore, the UE can also control the transmission of the first UL transmission without performing the second UL transmission.

[0193] Figure 15 This shows a case where a first UL transmission with the second priority (high) set overlaps with a second UL transmission with the second priority (low) set, and the second UL transmission uses part / all of the resources notified by the UL cancel indication.

[0194] The first UL transmission is HARQ-ACK for the SPS PDSCH activated by DCI (or PUCCH for the HARQ-ACK transmission). The second UL transmission is PUSCH based on the configuration grant (or UL data transmitted on the PUSCH).

[0195] First, the UE performs UL transmission control based on priority. Figure 15In the embodiment, the UE multiplexes the first UL transmission and the second UL transmission of the same priority into a common UL channel. Here, the UE controls so that the first UL transmission (HARQ-ACK) is multiplexed into the second UL transmission (here, PUSCH).

[0196] Then, the UE performs UL transmission control based on the UL cancellation instruction. Figure 15 In the example, since the resources notified by the UL cancellation indication overlap with the allocated resources of the second UL transmission (here PUSCH) in the time domain, the UE cancels the second UL transmission. Here, the HARQ-ACK (first UL transmission) multiplexed into the PUSCH is also canceled.

[0197] By initially applying the UL transmission control based on the priority and then applying the UL transmission control based on the UL cancellation indication, the UL transmission control based on the priority can be performed without being affected by the UL cancellation indication.

[0198] In addition, the UE may apply / prioritize UL transmission control based on the UL cancellation indication (UL cancellation), and then apply UL transmission control based on priority (eg, UL intra-UE multiplexing / prioritization).

[0199] <Operation 2-1-2>

[0200] The UE may also autonomously determine the transmission control to be applied initially (or preferentially) between the first transmission control (e.g., UL transmission control based on priority) and the second transmission control (e.g., UL transmission control based on a UL cancellation indication). Alternatively, the transmission control to be applied initially (or preferentially) may be set to the UE by the network through higher layer signaling or the like.

[0201] When the second UL transmission is UL transmission scheduled by DCI (for example, PUSCH based on dynamic grant), the UE may also control the UL transmission by using at least one of the following operations 2-2-1 to 2-2-3.

[0202] <Operation 2-2-1>

[0203] The UE controls so that one of the first transmission control (eg, UL transmission control based on priority) and the second transmission control (eg, UL transmission control based on UL cancellation indication) is applied first (or preferentially), and then the other is applied.

[0204] For example, the UE may also apply / prioritize UL transmission control based on priority (eg, UL intra-UE multiplexing / prioritization), and then apply UL transmission control based on a UL cancellation indication (UL cancelation).

[0205] Figure 16 This shows a case where a first UL transmission set with the second priority (high) overlaps with a second UL transmission set with the first priority (high), and the second UL transmission uses part / all of the resources notified by the UL cancel indication.

[0206] The first UL transmission is HARQ-ACK for the SPS PDSCH activated by DCI (or PUCCH for the HARQ-ACK transmission). The second UL transmission is PUSCH dynamically scheduled by DCI (or UL data transmitted on the PUSCH).

[0207] First, the UE performs UL transmission control based on priority. Figure 16 In the process, the UE prioritizes the second UL transmission with a higher priority and discards (or cancels) the first UL transmission with a lower priority.

[0208] Then, the UE performs UL transmission control based on the UL cancellation instruction. Figure 16 In the embodiment, since the resources notified by the UL cancellation indication overlap with the allocated resources of the second UL transmission (here, PUSCH) in the time domain, the UE cancels the second UL transmission.

[0209] By initially applying the UL transmission control based on the priority and then applying the UL transmission control based on the UL cancellation indication, the UL transmission control based on the priority can be performed without being affected by the UL cancellation indication.

[0210] Alternatively, the UE may apply / prioritize UL transmission control based on UL cancellation indication (UL cancellation), and then apply UL transmission control based on priority (e.g., UL intra-UE multiplexing / prioritization). In this case, Figure 16 In the process, the second UL transmission may be canceled and the first UL transmission may be performed.

[0211] <Operation 2-2-2>

[0212] The UE may also autonomously determine the transmission control to be applied initially (or preferentially) between the first transmission control (e.g., UL transmission control based on priority) and the second transmission control (e.g., UL transmission control based on a UL cancellation indication). Alternatively, the transmission control to be applied initially (or preferentially) may be set to the UE by the network through higher layer signaling or the like.

[0213] <Operation 2-2-3>

[0214] The UE may also determine, based on a specific condition, which transmission control to apply first (or preferentially) between the first transmission control (e.g., priority-based UL transmission control) and the second transmission control (e.g., UL transmission control based on a UL cancellation indication). The specific condition may also be, for example, the reception timing of the corresponding DCI (or PDCCH).

[0215] For example, the UE may determine the order of applying the transmission control based on the reception timing of the DCI corresponding to the first transmission control, the DCI corresponding to the second transmission control, and the DCI corresponding to the UL cancel indication.

[0216] <Scenario 1>

[0217] Consider the following situation: After receiving DCI activating the SPS PDSCH and DCI scheduling the PUSCH, the UE receives DCI specifying an UL cancellation indication, and the UL cancellation indication specifies the resources to be used for PUSCH transmission. In this case, the UE may first apply priority-based UL transmission control and then apply UL transmission control based on the UL cancellation indication. This operation can also be applied when the HARQ-ACK priority is the second priority (low) and the PUSCH priority is the first priority (high).

[0218] Figure 17 This shows a case where a first UL transmission with the second priority (low) set overlaps with a second UL transmission with the second priority (low), and the second UL transmission uses part / all of the resources notified by the UL cancel indication.

[0219] The first UL transmission is HARQ-ACK for a PDSCH scheduled by DCI (or a PUCCH for the HARQ-ACK transmission). The second UL transmission is PUSCH dynamically scheduled by DCI (or UL data transmitted by the PUSCH).

[0220] The UE may determine the transmission timing of HARQ-ACK (or PUCCH for HARQ-ACK) based on the information included in the DCI activating the PDSCH.

[0221] The UE may also determine the transmission timing of the PUSCH based on the information contained in the DCI that schedules the PUSCH. Here, it is shown that the offset between the DCI (or PDCCH) and the PUSCH satisfies a specific time line (> N2 + d 2，1 +1 symbol).

[0222] The UE may also determine the location of the UL cancellation resource based on the UL cancellation indication. Here, it is shown that the offset between the DCI (or PDCCH) and the UL cancellation resource meets a specific timeline (>T' proc，2 code element).

[0223] In addition, if a specific timeline is not met, transmission control based on priority and transmission control based on UL cancellation indication may not be applied.

[0224] In addition, Figure 17 1 shows a case where, after receiving / detecting the DCI activating the PDSCH and the DCI scheduling the PUSCH, the UE receives / detects the DCI indicating the UL cancellation instruction. In this case, the UE performs UL transmission control based on the UL cancellation instruction after performing UL transmission control based on priority.

[0225] exist Figure 17 In the UE, the UE first performs UL transmission control based on priority. Figure 17 In the process, the UE prioritizes the second UL transmission with a higher priority and discards (or cancels) the first UL transmission with a lower priority.

[0226] Then, the UE performs UL transmission control based on the UL cancellation instruction. Figure 17 In the embodiment, since the resources notified by the UL cancellation indication overlap with the allocated resources of the second UL transmission (here, PUSCH) in the time domain, the UE cancels the second UL transmission.

[0227] <Scenario 2>

[0228] Consider the following scenario: After receiving DCI specifying an UL cancellation indication, the UE receives DCI scheduling a PUSCH, and the UL cancellation indication specifies the resources to be used for PUSCH transmission. In this case, the UE may first apply UL transmission control based on the UL cancellation indication, and then apply UL transmission control based on priority.

[0229] Figure 18This shows a case where a first UL transmission set with the second priority (low) overlaps with a second UL transmission set with the first priority (high), and the second UL transmission uses part / all of the resources notified by the UL cancel indication.

[0230] The first UL transmission is HARQ-ACK for the SPS PDSCH activated by DCI (or PUCCH for the HARQ-ACK transmission). The second UL transmission is PUSCH dynamically scheduled by DCI (or UL data transmitted on the PUSCH).

[0231] The UE may determine the transmission timing of HARQ-ACK (or PUCCH for HARQ-ACK) based on the information included in the DCI activating the PDSCH.

[0232] The UE may also determine the transmission timing of the PUSCH based on the information contained in the DCI that schedules the PUSCH. Here, it is shown that the offset between the DCI (or PDCCH) and the PUSCH satisfies a specific time line (> N2 + d 2，1 +1 symbol).

[0233] The UE may also determine the location of the UL cancellation resource based on the UL cancellation indication. Here, it is shown that the offset between the DCI (or PDCCH) and the UL cancellation resource meets a specific timeline (>T' proc，2 code element).

[0234] In addition, if a specific timeline is not met, transmission control based on priority and transmission control based on UL cancellation indication may not be applied.

[0235] In addition, Figure 18 1 shows a case where, after receiving / detecting DCI indicating a UL cancellation indication, DCI scheduling a PUSCH is received / detected. In this case, the UE performs UL transmission control based on the UL cancellation indication and then performs UL transmission control based on priority.

[0236] exist Figure 18 In the UL cancellation instruction, the UE first performs UL transmission control based on the UL cancellation instruction. Figure 18 In the embodiment, since the resources notified by the UL cancellation indication overlap with the allocated resources of the second UL transmission (here, PUSCH) in the time domain, the second UL transmission is canceled.

[0237] Then, UE Figure 18However, the second UL transmission has been cancelled. Since the first UL transmission and the second UL transmission do not overlap, the UE can also control the transmission of the first UL transmission.

[0238] Alternatively, since the DCI used for PUSCH scheduling is transmitted later than the DCI notifying the UL cancellation indication, the second UL transmission (PUSCH) may be controlled not to be canceled. In this case, the UE may also control the subsequent application of priority-based UL transmission control to discard the first UL transmission and transmit the second UL transmission.

[0239] (change)

[0240] In the first and second embodiments, the UL transmission to which the UL cancel indication is applied may also be controlled by the configuration of higher-layer signaling. For example, when specific higher-layer signaling (e.g., applicability for CI) is configured, cancellation based on the UL cancel indication may be applied to UL transmissions of the second priority (low), while the UL cancel indication may not be applied to UL transmissions of the first priority. Furthermore, when specific higher-layer signaling is not configured, the UL cancel indication may be applied regardless of the priority of the UL transmission.

[0241] (Wireless Communication System)

[0242] The following describes a configuration of a wireless communication system according to an embodiment of the present disclosure. In this wireless communication system, communication is performed using any one of the wireless communication methods according to the above-described embodiments of the present disclosure or a combination thereof.

[0243] Figure 19 This figure shows an example of a schematic configuration of a wireless communication system according to one embodiment. The wireless communication system 1 may also be a system that implements communication using Long Term Evolution (LTE) standardized by the Third Generation Partnership Project (3GPP), the fifth generation mobile communication system New Radio (5G NR), or the like.

[0244] In addition, the wireless communication system 1 can also support dual connectivity (Multi-RAT Dual Connectivity (MR-DC)) between multiple radio access technologies (Radio Access Technology (RAT)). MR-DC can also include dual connectivity between LTE (Evolved Universal Terrestrial Radio Access (E-UTRA)) and NR (E-UTRA-NR Dual Connectivity (EN-DC)), dual connectivity between NR and LTE (NR-E-UTRA Dual Connectivity (NR-E-UTRA Dual Connectivity (NE-DC)), etc.

[0245] In EN-DC, the LTE (E-UTRA) base station (eNB) is the master node (MN), and the NR base station (gNB) is the secondary node (SN). In NE-DC, the NR base station (gNB) is the MN, and the LTE (E-UTRA) base station (eNB) is the SN.

[0246] The wireless communication system 1 can also support dual connectivity between multiple base stations within the same RAT (for example, dual connectivity (NR-NR Dual Connectivity (NN-DC)) where both MN and SN are NR base stations (gNB)).

[0247] The wireless communication system 1 may also include a base station 11 that forms a macrocell C1 with relatively wide coverage, and base stations 12 (12a-12c) that are deployed within the macrocell C1 and form small cells C2 that are narrower than the macrocell C1. User terminals 20 may also be located within at least one of the cells. The configuration and number of cells and user terminals 20 are not limited to those shown in the figure. Hereinafter, when not distinguishing between base stations 11 and 12, they are collectively referred to as base stations 10.

[0248] The user terminal 20 may be connected to at least one of the multiple base stations 10. The user terminal 20 may utilize at least one of carrier aggregation (CA) using multiple component carriers (CCs) and dual connectivity (DC).

[0249] Each CC may also be included in at least one of the first frequency band (Frequency Range 1 (FR1)) and the second frequency band (Frequency Range 2 (FR2)). The macro cell C1 may also be included in FR1, and the small cell C2 may also be included in FR2. For example, FR1 may be a frequency band below 6 GHz (below 6 GHz (sub-6 GHz)), and FR2 may be a frequency band higher than 24 GHz (above-24 GHz). In addition, the frequency bands and definitions of FR1 and FR2 are not limited to these. For example, FR1 may also be equivalent to a frequency band higher than FR2.

[0250] Furthermore, the user terminal 20 may perform communication using at least one of time division duplex (TDD) and frequency division duplex (FDD) in each CC.

[0251] Multiple base stations 10 can also be connected by wired (for example, optical fiber based on Common Public Radio Interface (CPRI)), X2 interface, etc.) or wireless (for example, NR communication). For example, when NR communication is used as a backhaul between base stations 11 and 12, the base station 11 equivalent to the upper station can also be called an integrated access backhaul (IAB) donor, and the base station 12 equivalent to the relay station (relay) can also be called an IAB node.

[0252] The base station 10 may also be connected to the core network 30 via other base stations 10 or directly. The core network 30 may also include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

[0253] The user terminal 20 may also be a terminal that supports at least one of communication methods such as LTE, LTE-A, and 5G.

[0254] In the wireless communication system 1, a radio access scheme based on orthogonal frequency division multiplexing (OFDM) may be used. For example, in at least one of the downlink (DL) and uplink (UL), cyclic prefix OFDM (CP-OFDM), discrete Fourier transform spread OFDM (DFT-s-OFDM), orthogonal frequency division multiple access (OFDMA), or single carrier frequency division multiple access (SC-FDMA) may be used.

[0255] The radio access scheme may also be referred to as a waveform. In addition, in the wireless communication system 1, other radio access schemes (for example, other single-carrier transmission schemes, other multi-carrier transmission schemes) may be used as the UL and DL radio access schemes.

[0256] As downlink channels, the wireless communication system 1 may use a downlink shared channel (Physical Downlink Shared Channel (PDSCH)) shared by each user terminal 20), a broadcast channel (Physical Broadcast Channel (PBCH)), a downlink control channel (Physical Downlink Control Channel (PDCCH)), etc.

[0257] In addition, as uplink channels, the wireless communication system 1 can also use an uplink shared channel (Physical Uplink Shared Channel (PUSCH)) shared by each user terminal 20), an uplink control channel (Physical Uplink Control Channel (PUCCH)), a random access channel (Physical Random Access Channel (PRACH)), etc.

[0258] User data, higher-layer control information, and system information blocks (SIBs) are transmitted via the PDSCH. User data, higher-layer control information, and the like can also be transmitted via the PUSCH. Furthermore, the Master Information Block (MIB) can also be transmitted via the PBCH.

[0259] The lower layer control information may also be transmitted via the PDCCH. The lower layer control information may include, for example, downlink control information (Downlink Control Information (DCI)) including scheduling information for at least one of the PDSCH and the PUSCH.

[0260] In addition, the DCI that schedules the PDSCH may also be referred to as DL allocation, DL DCI, etc., and the DCI that schedules the PUSCH may also be referred to as UL grant, UL DCI, etc. In addition, the PDSCH may also be replaced by DL data, and the PUSCH may also be replaced by UL data.

[0261] In PDCCH detection, a control resource set (CORESET) and a search space can also be used. A CORESET corresponds to the resources for searching for DCI. A search space corresponds to the search area and search method for PDCCH candidates. A CORESET can also be associated with one or more search spaces. The UE can also monitor the CORESET associated with a search space based on the search space settings.

[0262] A search space may also correspond to PDCCH candidates corresponding to one or more aggregation levels. One or more search spaces may also be referred to as a search space set. In addition, the terms "search space," "search space set," "search space setting," "search space set setting," "CORESET," and "CORESET setting" in this disclosure may be used interchangeably.

[0263] Uplink control information (uplink control information (UCI)) including at least one of channel state information (CSI), delivery confirmation information (e.g., also known as hybrid automatic repeat request confirmation (HARQ-ACK), ACK / NACK, etc.), and scheduling request (SR) can also be transmitted via the PUCCH. The random access preamble used to establish a connection with a cell can also be transmitted via the PRACH.

[0264] In the present disclosure, downlink, uplink, etc. may be expressed without the word "link." Furthermore, various channels may be expressed without the word "physical" at the beginning.

[0265] In the wireless communication system 1, a synchronization signal (Synchronization Signal (SS)), a downlink reference signal (Downlink Reference Signal (DL-RS)), etc. can also be transmitted. As DL-RS, in the wireless communication system 1, a cell-specific reference signal (Cell-specific Reference Signal (CRS)), a channel state information reference signal (Channel State Information Reference Signal (CSI-RS)), a demodulation reference signal (DeModulation Reference Signal (DMRS)), a positioning reference signal (Positioning Reference Signal (PRS)), a phase tracking reference signal (Phase Tracking Reference Signal (PTRS)), etc. can also be transmitted.

[0266] For example, a synchronization signal may be at least one of a primary synchronization signal (PSS) and a secondary synchronization signal (SSS). A signal block containing SSs (PSS, SSS) and PBCHs (and DMRS for PBCHs) may also be referred to as an SS / PBCH block or an SS block (SSB). Furthermore, SSs and SSBs may also be referred to as reference signals.

[0267] In addition, in the wireless communication system 1, as an uplink reference signal (Uplink Reference Signal (UL-RS)), a measurement reference signal (Sounding Reference Signal (SRS)), a demodulation reference signal (DMRS), etc. can also be transmitted. In addition, DMRS can also be called a user terminal specific reference signal (UE-specific Reference Signal).

[0268] (Base Station)

[0269] Figure 20 This figure shows an example of the configuration of a base station according to one embodiment. The base station 10 includes a control unit 110, a transmitting / receiving unit 120, a transmitting / receiving antenna 130, and a transmission path interface (transmission line interface) 140. Furthermore, more than one of each of the control unit 110, the transmitting / receiving unit 120, the transmitting / receiving antenna 130, and the transmission path interface 140 may be provided.

[0270] In addition, in this example, the functional blocks of the characteristic parts of this embodiment are mainly shown, and it is also assumed that the base station 10 also has other functional blocks required for wireless communication. Part of the processing of each unit described below may also be omitted.

[0271] 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 that are described based on common knowledge in the technical field to which this disclosure relates.

[0272] The control unit 110 may also control signal generation, scheduling (e.g., resource allocation, mapping), etc. It may also control transmission and reception, measurement, etc., using the transmission and reception unit 120, the transmission and reception antennas 130, and the transmission path interface 140. The control unit 110 may also generate data, control information, sequences, etc. to be transmitted as signals, and forward them to the transmission and reception unit 120. The control unit 110 may also perform call processing (setting up, releasing, etc.) of communication channels, manage the status of the base station 10, manage radio resources, etc.

[0273] The transceiver unit 120 may also include a baseband unit 121, a radio frequency (RF) unit 122, and a measurement unit 123. The baseband unit 121 may also include a transmission processing unit 1211 and a reception processing unit 1212. The transceiver unit 120 may include a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter (phase shifter), a measurement circuit, a transceiver circuit, and the like, which are described based on common knowledge in the technical fields involved in this disclosure.

[0274] The transmitting and receiving unit 120 may be configured as an integrated transmitting and receiving unit or may be configured as a transmitting unit and a receiving unit. The transmitting unit may also be configured as a transmitting processing unit 1211 and an RF unit 122. The receiving unit may also be configured as a receiving processing unit 1212, an RF unit 122, and a measuring unit 123.

[0275] The transmitting and receiving antenna 130 can be formed of an antenna described based on common knowledge in the technical field to which this disclosure relates, such as an array antenna.

[0276] The transmitting and receiving unit 120 may also transmit the aforementioned downlink channel, synchronization signal, downlink reference signal, etc. The transmitting and receiving unit 120 may also receive the aforementioned uplink channel, uplink reference signal, etc.

[0277] The transmitting and receiving unit 120 may also use digital beamforming (eg, precoding), analog beamforming (eg, phase rotation), etc. to form at least one of a transmit beam and a receive beam.

[0278] The sending and receiving unit 120 (sending processing unit 1211) can also perform processing on the Packet Data Convergence Protocol (PDCP) layer, the Radio Link Control (RLC) layer (for example, RLC retransmission control), the Medium Access Control (MAC) layer (for example, HARQ retransmission control), etc. on the data and control information obtained from the control unit 110 to generate a bit string to be sent.

[0279] The transmitting and receiving unit 120 (transmitting processing unit 1211) can also perform channel coding (which may also include error correction coding), modulation, mapping, filter processing (filtering processing), discrete Fourier transform (DFT) processing (as needed), inverse fast Fourier transform (IFFT) processing), precoding, digital-to-analog conversion and other transmission processing on the bit string to be sent, and output a baseband signal.

[0280] The transmitting and receiving unit 120 (RF unit 122 ) may also perform modulation, filter processing, amplification, etc. on the baseband signal to a radio frequency band, and transmit the signal in the radio frequency band via the transmitting and receiving antenna 130 .

[0281] On the other hand, the transmitting and receiving unit 120 (RF unit 122 ) may also perform amplification, filter processing, and demodulation into a baseband signal on the radio frequency band signal received by the transmitting and receiving antenna 130 .

[0282] The transmitting and receiving unit 120 (receiving processing unit 1212) can also apply receiving processing such as analog-to-digital conversion, fast Fourier transform (FFT) processing, inverse discrete Fourier transform (IDFT) processing (as needed), filter processing, demapping, demodulation, decoding (which may also include error correction decoding), MAC layer processing, RLC layer processing, and PDCP layer processing to the obtained baseband signal to obtain user data, etc.

[0283] The transmitting and receiving unit 120 (measuring unit 123) may also perform measurements related to the received signal. For example, the measuring unit 123 may also perform radio resource management (RRM) measurements, channel state information (CSI) measurements, etc. based on the received signal. The measuring unit 123 may also measure received power (e.g., Reference Signal Received Power (RSRP)), received quality (e.g., Reference Signal Received Quality (RSRQ)), signal to interference plus noise ratio (SINR), signal to noise ratio (SNR)), signal strength (e.g., received signal strength indicator (RSSI)), propagation path information (e.g., CSI), etc. The measurement results may also be output to the control unit 110.

[0284] The transmission path interface 140 can also send and receive signals (return signaling) between the devices included in the core network 30, other base stations 10, etc., and can also obtain and transmit user data (user plane data) and control plane data for the user terminal 20.

[0285] In addition, the transmitting unit and the receiving unit of the base station 10 in the present disclosure may also be composed of at least one of the transmitting and receiving unit 120 , the transmitting and receiving antenna 130 , and the transmission path interface 140 .

[0286] The transmitting and receiving unit 120 may also transmit downlink control information including information related to resources for which UL transmission is canceled.

[0287] In the case where multiple UL transmissions are scheduled or set to overlap in the time domain, and at least one of the multiple UL transmissions utilizes resources for canceling the UL transmission, the control unit 110 may also determine to apply a first UL transmission control and a second UL transmission control after first applying the other, and control the reception of the UL transmission, wherein the first UL transmission control is based on the priority of each UL transmission and the second UL transmission control is based on information related to the resources for canceling the UL transmission.

[0288] In the case where the HARQ-ACK for the downlink shared channel that is semi-continuously transmitted overlaps with other UL transmissions in the time domain, and the other UL transmissions utilize resources for which the UL transmission is canceled, the control unit 110 may also determine to apply a first UL transmission control and a second UL transmission control after first applying the other, and control the reception of the UL transmission, wherein the first UL transmission control is based on the priorities corresponding to the HARQ-ACK and the other UL transmissions, respectively, and the second UL transmission control is based on information related to the resources for which the UL transmission is canceled.

[0289] (User Terminal)

[0290] Figure 21 This figure shows an example of the configuration of a user terminal according to one embodiment. The user terminal 20 includes a control unit 210, a transmitting / receiving unit 220, and a transmitting / receiving antenna 230. Furthermore, more than one of each of the control unit 210, the transmitting / receiving unit 220, and the transmitting / receiving antenna 230 may be provided.

[0291] In addition, in this example, the functional blocks of the characteristic parts of this embodiment are mainly shown, and it is also assumed that the user terminal 20 also has other functional blocks required for wireless communication. Part of the processing of each unit described below may also be omitted.

[0292] 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 that are described based on common knowledge in the technical field to which this disclosure relates.

[0293] The control unit 210 may also control signal generation, mapping, etc. The control unit 210 may also control transmission, reception, measurement, etc. using the transmission and reception unit 220 and the transmission and reception antenna 230. The control unit 210 may also generate data, control information, sequences, etc. to be transmitted as signals and forward them to the transmission and reception unit 220.

[0294] The transceiver unit 220 may also include a baseband unit 221, an RF unit 222, and a measurement unit 223. The baseband unit 221 may also include a transmission processing unit 2211 and a reception processing unit 2212. The transceiver unit 220 may include a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measurement circuit, a transceiver circuit, and the like, which are described based on common knowledge in the technical fields involved in this disclosure.

[0295] The transmitting and receiving unit 220 may be configured as an integrated transmitting and receiving unit or may be composed of a transmitting unit and a receiving unit. The transmitting unit may also be composed of a transmitting processing unit 2211 and an RF unit 222. The receiving unit may also be composed of a receiving processing unit 2212, an RF unit 222, and a measuring unit 223.

[0296] The transmitting and receiving antenna 230 can be formed of an antenna described based on common knowledge in the technical field involved in the present disclosure, such as an array antenna.

[0297] The transmitting and receiving unit 220 may also receive the aforementioned downlink channel, synchronization signal, downlink reference signal, etc. The transmitting and receiving unit 220 may also transmit the aforementioned uplink channel, uplink reference signal, etc.

[0298] The transmitting and receiving unit 220 may also use digital beamforming (eg, precoding), analog beamforming (eg, phase rotation), etc. to form at least one of a transmitting beam and a receiving beam.

[0299] The sending and receiving unit 220 (sending processing unit 2211) can also perform PDCP layer processing, RLC layer processing (for example, RLC retransmission control), MAC layer processing (for example, HARQ retransmission control), etc. on the data, control information, etc. obtained from the control unit 210 to generate a bit string to be sent.

[0300] The transmitting and receiving unit 220 (transmitting processing unit 2211) can also perform channel coding (which may also include error correction coding), modulation, mapping, filter processing, DFT processing (as needed), IFFT processing, precoding, digital-to-analog conversion and other transmission processing on the bit string to be sent, and output a baseband signal.

[0301] In addition, whether or not to apply DFT processing may also be based on the transform precoding setting. For a certain channel (e.g., PUSCH), if transform precoding is valid (enabled), the transmitting / receiving unit 220 (transmitting processing unit 2211) may perform DFT processing as the aforementioned transmission processing in order to transmit the channel using a DFT-s-OFDM waveform. Otherwise, the transmitting / receiving unit 220 (transmitting processing unit 2211) may perform DFT processing as the aforementioned transmission processing without performing DFT processing.

[0302] The transmitting and receiving unit 220 (RF unit 222 ) may also perform modulation, filter processing, amplification, etc. on the baseband signal to a radio frequency band, and transmit the signal in the radio frequency band via the transmitting and receiving antenna 230 .

[0303] On the other hand, the transmitting and receiving unit 220 (RF unit 222 ) may also perform amplification, filter processing, and demodulation into a baseband signal on the radio frequency band signal received by the transmitting and receiving antenna 230 .

[0304] The transmitting and receiving unit 220 (receiving processing unit 2212) can also apply receiving processing such as analog-to-digital conversion, FFT processing, IDFT processing (as needed), filter processing, demapping, demodulation, decoding (which may also include error correction decoding), MAC layer processing, RLC layer processing, and PDCP layer processing to the obtained baseband signal to obtain user data, etc.

[0305] The transmitting and receiving unit 220 (measuring unit 223) may also perform measurements related to received signals. For example, the measuring unit 223 may also perform RRM measurements, CSI measurements, etc. based on the received signals. The measuring unit 223 may also measure received power (e.g., RSRP), received quality (e.g., RSRQ, SINR, SNR), signal strength (e.g., RSSI), propagation path information (e.g., CSI), etc. The measurement results may also be output to the control unit 210.

[0306] In addition, the transmitting unit and the receiving unit of the user terminal 20 in the present disclosure may also be composed of at least one of the transmitting and receiving unit 220 and the transmitting and receiving antenna 230 .

[0307] The transmitting and receiving unit 220 may also receive downlink control information including information related to resources for canceling UL transmission.

[0308] In the case where multiple UL transmissions are scheduled or set to overlap in the time domain, and at least one of the multiple UL transmissions utilizes resources for canceling the UL transmission, the control unit 210 may also control so that one of the first UL transmission control and the second UL transmission control is applied after the other is first applied, wherein the first UL transmission control is based on the priority of each UL transmission and the second UL transmission control is based on information related to the resources for canceling the UL transmission.

[0309] In the case where the HARQ-ACK for the downlink shared channel that is semi-continuously transmitted overlaps with other UL transmissions in the time domain, and the other UL transmissions utilize the resources for which the UL transmission is canceled, the control unit 210 may also control so that one of the first UL transmission control and the second UL transmission control is applied after the other is first applied, wherein the first UL transmission control is based on the priorities corresponding to the HARQ-ACK and the other UL transmissions, respectively, and the second UL transmission control is based on information related to the resources for which the UL transmission is canceled.

[0310] The control unit 210 may also control the first UL transmission control to be applied first. Alternatively, the control unit 210 may determine which of the first UL transmission control and the second UL transmission control to be applied first based on the downlink control information and the reception timing of the downlink control information corresponding to at least one of the multiple UL transmissions.

[0311] The multiple UL transmissions may include transmission using an uplink control channel and UL transmission using an uplink shared channel.

[0312] Other UL transmissions may also be at least one of an uplink shared channel scheduled by downlink control information, a downlink shared channel configured by higher layer signaling, and a sounding reference signal.

[0313] (Hardware Structure)

[0314] In addition, the block diagrams used in the description of the above embodiments show blocks of functional units. These functional blocks (structural units) are implemented by any combination of at least one of hardware and software. In addition, the implementation method of each functional block is not particularly limited. That is, each functional block can be implemented by a device that is physically or logically combined, or two or more physically or logically separated devices can be directly or indirectly (for example, by wired, wireless, etc.) connected and implemented by these multiple devices. The functional block can also be implemented by combining the above-mentioned one device or the above-mentioned multiple devices with software.

[0315] Here, the functions include judging, deciding, determining, calculating, calculating, processing, deriving, investigating, searching, confirming, receiving, sending, outputting, accessing, resolving, selecting, selecting, establishing, comparing, assuming, expecting, regarding, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc., but are not limited to these. For example, a functional block (structural unit) that implements a sending function may also be referred to as a transmitting unit, a transmitter, etc. Any of them are as described above, and the implementation method is not particularly limited.

[0316] For example, a base station, a user terminal, etc. in one embodiment of the present disclosure may also function as a computer that performs processing of the wireless communication method of the present disclosure. Figure 22This figure shows an example of the hardware configuration of a base station and a user terminal according to one embodiment. The base station 10 and user terminal 20 described above can also 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.

[0317] In addition, in this disclosure, the terms such as device, circuit, equipment, section, and unit are interchangeable. The hardware structure of the base station 10 and the user terminal 20 may include one or more of the devices shown in the figure, or may not include some of the devices.

[0318] For example, although only one processor 1001 is shown, multiple processors may be provided. Furthermore, processing may be performed by a single processor, or by two or more processors simultaneously, sequentially, or using other methods. Furthermore, processor 1001 may be implemented using more than one chip.

[0319] Regarding the various functions in the base station 10 and the user terminal 20, for example, they are achieved by reading specific software (program) into hardware such as the processor 1001 and the memory 1002, so that the processor 1001 performs calculations and controls communication via the communication device 1004, or controls at least one of the reading and writing of data in the memory 1002 and the storage 1003.

[0320] The processor 1001 controls the entire computer by, for example, operating an operating system. The processor 1001 may also be composed of a central processing unit (CPU) including an interface with peripheral devices, a control device, a computing device, registers, etc. For example, at least a portion of the control unit 110 (210) and the transmitting and receiving unit 120 (220) described above may also be implemented by the processor 1001.

[0321] In addition, 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 performs various processes based on them. As a program, a program that causes a computer to perform at least a portion of the operations described in the above embodiments can be used. For example, the control unit 110 (210) can also be implemented by a control program stored in the memory 1002 and operated by the processor 1001, and the other functional blocks can also be implemented similarly.

[0322] The memory 1002 may also be a computer-readable recording medium, for example, comprised of at least one of a read-only memory (ROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a random access memory (RAM), or other suitable storage medium. The memory 1002 may also be referred to as a register, a cache, a main memory (main storage device), etc. The memory 1002 may store executable programs (program code), software modules, etc., for implementing the wireless communication method according to an embodiment of the present disclosure.

[0323] The storage 1003 may also be a computer-readable recording medium, such as a flexible disk, a floppy disk, an optical disk (such as a compact disk (Compact Disc ROM (CD-ROM)), etc.), a digital versatile disk, a Blu-ray disk), a removable disk, a hard disk drive, a smart card, a flash memory device (such as a card, a stick, or a key drive), a magnetic stripe, a database, a server, or other suitable storage media. The storage 1003 may also be referred to as an auxiliary storage device.

[0324] The communication device 1004 is hardware (a transmitting and receiving device) for communicating between computers via at least one of a wired network and a wireless network, and is also referred to as a network device, a network controller, a network card, a communication module, or the like. To implement at least one of frequency division duplex (FDD) and time division duplex (TDD), the communication device 1004 may also include a high-frequency switch, a duplexer, a filter, a frequency synthesizer, and the like. For example, the aforementioned transmitting and receiving unit 120 (220), transmitting and receiving antenna 130 (230), and the like may also be implemented by the communication device 1004. The transmitting and receiving unit 120 (220) may also be implemented by physically or logically separating the transmitting unit 120a (220a) and the receiving unit 120b (220b).

[0325] The input device 1005 is an input device that receives input from the outside (e.g., a keyboard, mouse, microphone, switch, button, sensor, etc.). The output device 1006 is an output device that outputs to the outside (e.g., a display, speaker, light emitting diode (LED) lamp, etc.). Alternatively, the input device 1005 and the output device 1006 may be integrated (e.g., a touch panel).

[0326] Furthermore, the processor 1001, memory 1002, and other devices are connected via a bus 1007 for communicating information. The bus 1007 may be configured as a single bus or may be configured as different buses between the devices.

[0327] Furthermore, the base station 10 and the user terminal 20 may also be configured to include hardware such as a microprocessor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a field programmable gate array (FPGA), and may use such hardware to implement part or all of each functional block. For example, the processor 1001 may also be implemented using at least one of these hardware components.

[0328] (Variation)

[0329] In addition, the terms described in this disclosure and the terms required for understanding this disclosure may also be replaced with terms having the same or similar meanings. For example, channel, symbol, and signal (signal or signaling) may be replaced with each other. In addition, a signal may also be a message. A reference signal may also be referred to as RS, or may be referred to as a pilot, pilot signal, etc. depending on the applied standard. In addition, a component carrier (CC) may also be referred to as a cell, frequency carrier, carrier frequency, etc.

[0330] A radio frame can also be composed of one or more periods (frames) in the time domain. Each period (frame) of the one or more periods (frames) that constitute a radio frame can also be called a subframe. Furthermore, a subframe can also be composed of one or more time slots in the time domain. A subframe can also be a fixed time length (e.g., 1 ms) that is independent of the parameter set (numerology).

[0331] Here, a parameter set may also refer to communication parameters applied to at least one of the transmission and reception of a signal or channel. For example, a parameter set may also represent at least one of subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), the number of symbols per TTI, radio frame structure, specific filtering processing performed by the transmitter and receiver in the frequency domain, specific windowing processing performed by the transmitter and receiver in the time domain, and the like.

[0332] A time slot may also be composed of one or more symbols (Orthogonal Frequency Division Multiplexing (OFDM) symbols, Single Carrier Frequency Division Multiple Access (SC-FDMA) symbols, etc.) in the time domain. In addition, a time slot may also be a time unit based on a parameter set.

[0333] A time slot may also contain multiple mini-slots. Each mini-slot may also be composed of one or more symbols in the time domain. Furthermore, a mini-slot may also be referred to as a sub-slot. A mini-slot may also be composed of fewer symbols than a time slot. A PDSCH (or PUSCH) transmitted in a time unit larger than a mini-slot may also be referred to as PDSCH (PUSCH) mapping type A. A PDSCH (or PUSCH) transmitted using a mini-slot may also be referred to as PDSCH (PUSCH) mapping type B.

[0334] Radio frames, subframes, time slots, mini-time slots, and symbols all represent time units used for signal transmission. Radio frames, subframes, time slots, mini-time slots, and symbols may also be referred to by their respective equivalents. Furthermore, the terms frame, subframe, time slot, mini-time slot, and symbol may be used interchangeably in this disclosure.

[0335] For example, a subframe can be called a TTI, multiple consecutive subframes can be called a TTI, and a slot or a mini-slot can be called a TTI. That is, at least one of a subframe and a TTI can be a subframe (1ms) in existing LTE, a period shorter than 1ms (e.g., 1-13 symbols), or a period longer than 1ms. Furthermore, the unit representing a TTI can be called a slot, a mini-slot, or the like, rather than a subframe.

[0336] Here, TTI refers to, for example, the minimum time unit for scheduling in wireless communications. For example, in the LTE system, a base station schedules each user terminal by allocating radio resources (such as the frequency bandwidth and transmit power available to each user terminal) in TTI units. The definition of TTI is not limited to this.

[0337] The TTI may also be a unit of time for transmitting channel-coded data packets (transport blocks), code blocks, code words, etc., and may also be a unit of processing for scheduling, link adaptation, etc. Furthermore, when a TTI is given, the time interval (e.g., the number of symbols) to which the transport blocks, code blocks, code words, etc. are actually mapped may be shorter than the TTI.

[0338] In addition, when a time slot or a mini-time slot is called a TTI, one or more TTIs (i.e., one or more time slots or one or more mini-time slots) can also be the minimum time unit of scheduling. In addition, the number of time slots (mini-time slots) that constitute the minimum time unit of scheduling can also be controlled.

[0339] A TTI having a time length of 1 ms may also be referred to as a normal TTI (TTI in 3GPP Rel. 8-12), a standard TTI, a long TTI, a normal subframe, a standard subframe, a long subframe, a time slot, etc. A TTI shorter than a normal TTI may also be referred to as a shortened TTI, a short TTI, a partial TTI (partial or fractional TTI), a shortened subframe, a short subframe, a mini-slot, a subslot, a time slot, etc.

[0340] In addition, long TTI (for example, normal TTI, subframe, etc.) can also be replaced by TTI with a time length exceeding 1ms, and short TTI (for example, shortened TTI, etc.) can also be replaced by TTI with a TTI length smaller than long TTI and greater than 1ms.

[0341] A resource block (RB) is a unit of resource allocation in the time and frequency domains. In the frequency domain, it may also include one or more consecutive subcarriers (subcarriers). The number of subcarriers included in an RB may be the same regardless of the parameter set, for example, it may be 12. The number of subcarriers included in an RB may also be determined based on the parameter set.

[0342] In addition, an RB may also include one or more symbols in the time domain, and may also be the length of a slot, a mini-slot, a subframe, or a TTI. A TTI, a subframe, etc. may also be composed of one or more resource blocks.

[0343] In addition, one or more RBs may also be referred to as 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, etc.

[0344] Furthermore, a resource block may be composed of one or more resource elements (REs). For example, one RE may be a radio resource region of one subcarrier and one symbol.

[0345] A Bandwidth Part (BWP) (also referred to as a fractional bandwidth) can also represent a subset of contiguous common resource blocks (RBs) used for a particular parameter set within a particular carrier. Common RBs can also be identified by their index relative to the common reference point of the carrier. PRBs can also be defined within a BWP and numbered within that BWP.

[0346] The BWP may include a UL BWP (BWP for UL) and a DL BWP (BWP for DL). For a UE, one or more BWPs may be configured within one carrier.

[0347] At least one of the configured BWPs may be activated, and the UE may not assume that it will transmit or receive specific signals / channels outside of the activated BWP. In addition, the terms "cell," "carrier," and the like in this disclosure may be replaced with "BWP."

[0348] The above-mentioned structures of radio frames, subframes, slots, mini-slots, and symbols are merely examples. For example, various modifications may be made to the number of subframes in a radio frame, the number of slots per subframe or radio frame, the number of mini-slots within a slot, the number of symbols and RBs within a slot or mini-slot, the number of subcarriers within an RB, the number of symbols within a TTI, the symbol length, and the cyclic prefix (CP) length.

[0349] Furthermore, the information and parameters described in this disclosure may be expressed as absolute values, relative values relative to a specific value, or other corresponding information. For example, wireless resources may be indicated by specific indexes.

[0350] The names used for parameters, etc. in this disclosure are not intended to be limiting in any respect. Furthermore, the mathematical formulas for these parameters may differ from those explicitly disclosed in this disclosure. Various channels (PUCCH, PDCCH, etc.) and information elements can be identified by any suitable names, and therefore, the various names assigned to these various channels and information elements are not intended to be limiting in any respect.

[0351] Information, signals, and the like described in this disclosure may also be represented using any of a variety of different technologies. For example, data, instructions, commands, information, signals, bits, symbols, chips, and the like that may be referred to throughout the foregoing description may also be represented by voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any combination thereof.

[0352] Furthermore, information, signals, etc. can be output in at least one of the following directions: from a higher layer (upper layer) to a lower layer (lower layer), and from a lower layer to a higher layer. Information, signals, etc. can also be input and output via multiple network nodes.

[0353] Input and output information, signals, etc. may be stored in a specific location (e.g., memory) or managed using a management table. Input and output information, signals, etc. may be overwritten, updated, or appended. Output information, signals, etc. may also be deleted. Input information, signals, etc. may also be sent to other devices.

[0354] The notification of information is not limited to the methods / implementations described in the present disclosure, and may also be performed by other methods. For example, the notification of information in the present disclosure may also be implemented through physical layer signaling (e.g., downlink control information (Downlink Control Information (DCI))), uplink control information (Uplink Control Information (UCI))), high-layer signaling (e.g., Radio Resource Control (RRC)) signaling, broadcast information (Master Information Block (MIB)), System Information Block (SIB), etc.), Medium Access Control (MAC) signaling), other signals, or a combination thereof.

[0355] In addition, physical layer signaling may also be referred to as Layer 1 / Layer 2 (L1 / L2) control information (L1 / L2 control signal), L1 control information (L1 control signal), etc. In addition, RRC signaling may also be referred to as RRC message, for example, RRC Connection Setup message, RRC Connection Reconfiguration message, etc. In addition, MAC signaling may also be notified using MAC Control Element (CE), for example.

[0356] Furthermore, notification of specific information (eg, notification of “it is X”) is not limited to explicit notification, but may be performed implicitly (eg, by not notifying the specific information or by notifying other information).

[0357] The determination can be made by a value represented by a bit (0 or 1), a true or false value (Boolean value) represented by true (true) or false (false), or by comparing numerical values (for example, comparing with a specific value).

[0358] The term “software” or “firmware” shall be construed broadly to mean instructions, instruction sets, code, code segments, program code, programs, sub-programs, software modules, applications, software applications, software packages, routines, sub-routines, objects, executable files, execution threads, procedures, functions, or the like.

[0359] Furthermore, software, instructions, information, and the like may also be transmitted and received via a transmission medium. For example, if the software is transmitted from a website, server, or other remote source using at least one of a wired technology (coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), etc.) and a wireless technology (infrared, microwave, etc.), at least one of these wired and wireless technologies is included within the definition of a transmission medium.

[0360] The terms "system" and "network" used in this disclosure can be used interchangeably. "Network" may also refer to devices included in the network (eg, base stations).

[0361] In the present disclosure, terms such as "precoding", "precoder", "weight (precoding weight)", "Quasi-Co-Location (QCL)" "Transmission Configuration Indication state (TCI state)", "spatial relation", "spatial domain filter", "transmission power", "phase rotation", "antenna port", "antenna port group", "layer", "number of layers", "rank", "resource", "resource set", "resource group", "beam", "beam width", "beam angle", "antenna", "antenna element", and "panel" can be used interchangeably.

[0362] In this disclosure, terms such as "base station (BS)", "wireless base station", "fixed station", "NodeB", "eNB (eNodeB)", "gNB (gNodeB)", "access point", "transmission point (TP)", "reception point (RP)", "transmission / reception point (TRP))", "panel", "cell", "sector", "cell group", "carrier", and "component carrier" are used interchangeably. In some cases, a base station may be referred to as a macro cell, small cell, femto cell, or pico cell.

[0363] A base station can accommodate one or more (for example, three) cells. When a base station accommodates multiple cells, the overall coverage area of the base station can be divided into multiple smaller areas, each of which can also provide communication services through a base station subsystem (for example, a small base station for indoor use (Remote Radio Head (RRH))). Terms such as "cell" or "sector" refer to a part or the entire coverage area of at least one of a base station and a base station subsystem that provides communication services within that coverage area.

[0364] In the present disclosure, terms such as “mobile station (MS)”, “user terminal”, “user device (User Equipment (UE))”, and “terminal” can be used interchangeably.

[0365] The mobile station may also be referred to as a subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, hand set, user agent, mobile client, client, or several other appropriate terms.

[0366] At least one of the base station and the mobile station may also be referred to as a transmitting device, a receiving device, a wireless communication device, etc. Furthermore, at least one of the base station and the mobile station may also be a device mounted on a mobile object, a mobile object itself, etc. The mobile object may be a means of transportation (e.g., a vehicle, an airplane, etc.), a mobile object that moves unmanned (e.g., a drone, an autonomous vehicle, etc.), or a robot (manned or unmanned). Furthermore, at least one of the base station and the mobile station also includes a device that does not necessarily move when performing communication operations. For example, at least one of the base station and the mobile station may also be an Internet of Things (IoT) device such as a sensor.

[0367] In addition, the base station in the present disclosure may also be replaced by a user terminal. For example, the various methods / implementations of the present disclosure may also be applied to a structure in which the communication between a base station and a user terminal is replaced by communication between multiple user terminals (for example, which may also be referred to as device-to-device (D2D)), vehicle-to-everything (V2X), etc.). In this case, it may also be configured such that the user terminal 20 has the functions of the above-mentioned base station 10. In addition, terms such as "uplink" and "downlink" may also be replaced by terms corresponding to inter-terminal communication (for example, "side"). For example, uplink channels, downlink channels, etc. may also be replaced by side channels.

[0368] Likewise, the user terminal in the present disclosure may be replaced by a base station. In this case, the base station 10 may have the functions of the user terminal 20 described above.

[0369] In the present disclosure, actions are assumed to be performed by a base station, and sometimes, depending on the circumstances, by its upper node. Obviously, in a network including one or more network nodes including a base station, various operations performed for communication with a terminal may be performed by the base station, one or more network nodes other than the base station (for example, a Mobility Management Entity (MME)), a Serving-Gateway (S-GW), etc., but not limited to these), or a combination thereof.

[0370] The various methods / implementations described in this disclosure may be used individually or in combination, and may be switched between them during execution. Furthermore, the processing procedures, sequences, flow charts, and the like of the various methods / implementations described in this disclosure may be reversed as long as they do not conflict. For example, the elements of various steps described in this disclosure are presented in an illustrative order, but are not limited to the specific order presented.

[0371] The various modes and embodiments described in the present disclosure may also be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 6th generation mobile communication system (6G), xth generation mobile communication system (xG) (xG (x is, for example, an integer or a decimal)), Future Radio Access (FRA), New Radio Access Technology (RAT), New Radio (NR), New Radio Access (NX), Future Generation Radio Access (FX), Global System for Mobile Communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB)), Bluetooth (registered trademark), systems using other appropriate wireless communication methods, and next-generation systems based on these. In addition, multiple systems can also be combined for application (for example, LTE or LTE-A, combined with 5G, etc.).

[0372] The phrase “based on” used in this disclosure does not mean “based only on” unless otherwise specified. In other words, the phrase “based on” means both “based only on” and “based at least on.”

[0373] Any reference to an element using the designations "first," "second," etc., as used in this disclosure, does not necessarily define the quantity or order of these elements. These designations may be used in this disclosure as a convenient method of distinguishing between two or more elements. Therefore, reference to a first and a second element does not imply that only two elements may be used or that the first element must in some way take precedence over the second element.

[0374] The term "determining" as used in this disclosure may encompass a variety of actions. For example, "determining" may also include judging, calculating, computing, processing, deriving, investigating, looking up (e.g., searching in a table, database, or other data structure), ascertaining, etc. as performing a "determination."

[0375] In addition, "judgment (decision)" can also be a situation where receiving (for example, receiving information), transmitting (for example, sending information), input (input), output (output), accessing (for example, accessing data in a memory), etc. are regarded as making a "judgment (decision)".

[0376] Furthermore, "judgment (decision)" can also refer to situations where resolving, selecting, choosing, establishing, comparing, etc. can be considered as "judgment (decision)". In other words, "judgment (decision)" can also refer to situations where certain actions can be considered as "judgment (decision)".

[0377] In addition, “judgment (decision)” can also be replaced by “assuming (assuming)”, “expecting (expecting)”, “considering (considering)” and so on.

[0378] The "maximum transmit power" recorded in this disclosure may refer to the maximum value of the transmit power, the nominal maximum transmit power (the nominal UE maximum transmit power), or the rated maximum transmit power (the rated UE maximum transmit power).

[0379] As used in this disclosure, the terms "connected," "coupled," or any variation thereof, refer to any direct or indirect connection or coupling between two or more elements, and may include the presence of one or more intermediate elements between the two elements being "connected" or "coupled." The coupling or connection between elements may be physical, logical, or a combination thereof. For example, "connected" may be replaced by "access."

[0380] In the present disclosure, when two elements are connected, it is possible to consider using one or more wires, cables, printed electrical connections, etc., as well as using electromagnetic energy with wavelengths in the wireless frequency domain, microwave region, light (both visible and invisible) region, etc. as several non-limiting and non-inclusive examples to be "connected" or "combined" with each other.

[0381] In the present disclosure, the term "A is different from B" may also mean "A and B are different from each other." Alternatively, the term may also mean "A and B are each different from C." Terms such as "separate" and "bound" may also be interpreted in the same way as "different."

[0382] When used in this disclosure, "include," "including," and variations thereof have the same inclusive meaning as the term "comprising." Furthermore, the term "or" used in this disclosure does not mean an exclusive or.

[0383] In the present disclosure, when an article is added by translation, such as a, an, and the in English, the present disclosure may also include a case where the noun following the article is in a plural form.

[0384] While the inventions disclosed herein have been described in detail above, it will be apparent to those skilled in the art that the inventions disclosed herein are not limited to the embodiments described herein. The inventions disclosed herein can be implemented in modified and altered forms without departing from the spirit and scope of the invention as defined by the claims. Therefore, the descriptions in this disclosure are for illustrative purposes only and are not intended to limit the inventions disclosed herein in any way.

Claims

1. A terminal, characterized in that: have: a receiving unit configured to receive downlink control information including information regarding resources for canceled UL transmission, information regarding a priority of an uplink shared channel based on a configuration grant, and information regarding a priority of an uplink control channel for HARQ-ACK transmission for a downlink shared channel being semi-persistently transmitted; as well as A control unit controls, in a case where an uplink control channel for HARQ-ACK transmission for the semi-persistently transmitted downlink shared channel and the uplink shared channel based on the set grant overlap in the time domain, the uplink shared channel based on the set grant utilizes resources for canceling the UL transmission, and the priority of the uplink control channel for HARQ-ACK transmission is the same as the priority of the uplink shared channel based on the set grant, such that after the HARQ-ACK is multiplexed onto the uplink shared channel based on the set grant, transmission of the uplink shared channel based on the set grant is canceled.

2. The terminal according to claim 1, wherein The priority of the uplink control channel for HARQ-ACK transmission is lower than the priority of the uplink shared channel based on the configuration grant.

3. A wireless communication method, characterized in that: have: receiving downlink control information including information regarding resources for canceled UL transmission, information regarding the priority of an uplink shared channel based on a configuration grant, and information regarding the priority of an uplink control channel for HARQ-ACK transmission for a downlink shared channel being semi-persistently transmitted; as well as A step of controlling, in a case where an uplink control channel for transmitting HARQ-ACK for the semi-persistently transmitted downlink shared channel and the uplink shared channel based on the set grant overlap in the time domain, the uplink shared channel based on the set grant utilizes resources in which the UL transmission is canceled, and the priority of the uplink control channel for transmitting HARQ-ACK is the same as the priority of the uplink shared channel based on the set grant, cancelling the transmission of the uplink shared channel based on the set grant after the HARQ-ACK is multiplexed onto the uplink shared channel based on the set grant.

4. A base station, characterized in that: have: a transmitting unit configured to transmit downlink control information including information regarding resources for canceled UL transmission, information regarding a priority of an uplink shared channel based on a configuration grant, and information regarding a priority of an uplink control channel for HARQ-ACK transmission for a downlink shared channel being semi-persistently transmitted; as well as A control unit that, when an uplink control channel for sending HARQ-ACK for the semi-persistently sent downlink shared channel and the uplink shared channel based on the set permission overlap in the time domain, and the uplink shared channel based on the set permission utilizes resources for canceling the UL transmission, and the priority of the uplink control channel for sending HARQ-ACK is the same as that of the uplink shared channel based on the set permission, instructs, through the downlink control information, to cancel the uplink shared channel based on the set permission on which the HARQ-ACK is multiplexed.

5. A system having a terminal and a base station, wherein: The terminal has: a receiving unit configured to receive downlink control information including information regarding resources for canceled UL transmission, information regarding a priority of an uplink shared channel based on a configuration grant, and information regarding a priority of an uplink control channel for HARQ-ACK transmission for a downlink shared channel being semi-persistently transmitted; as well as a control unit configured to control the HARQ-ACK to be multiplexed onto the uplink shared channel based on the configured grant, where an uplink control channel for HARQ-ACK transmission for the semi-persistently transmitted downlink shared channel and the uplink shared channel based on the configured grant overlap in the time domain, the uplink shared channel based on the configured grant utilizes resources in which the UL transmission is canceled, and the priority of the uplink control channel for HARQ-ACK transmission is the same as the priority of the uplink shared channel based on the configured grant, and then cancel the transmission of the uplink shared channel based on the configured grant; The base station has: a sending unit, configured to send the downlink control information, the information related to the priority of the uplink shared channel, and the information related to the priority of the uplink control channel; as well as The control unit instructs, through the downlink control information, to cancel the uplink shared channel based on the configured grant on which the HARQ-ACK is multiplexed.

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