Terminal, wireless communication method, and base station

Abstract

A terminal according to one embodiment of the present disclosure includes a reception unit that receives downlink control information including information related to resources for canceling UL transmission, and a control unit that controls to apply one of first UL transmission control based on priority of each UL transmission and second UL transmission control based on the information related to the resources for canceling the UL transmission first and then apply the other one in a case where a plurality of UL transmissions overlapping in a time region are scheduled or configured and at least one of the plurality of UL transmissions uses the resources for canceling the UL transmission.

Description

Technical Field

[0001] This disclosure relates to terminals, wireless communication methods, and base stations in next-generation mobile communication systems. Background Technology

[0002] In Universal Mobile Telecommunications System (UMTS) networks, Long Term Evolution (LTE) was standardized with the aim of achieving higher data rates and lower latency (Non-Patent Document 1). Furthermore, LTE-Advanced (3GPP Rel. 10-14) was standardized with the aim of further increasing capacity and improving the height of LTE (Third Generation Partnership Project (3GPP) Releases (Rel.) 8, 9).

[0003] The development of successor systems to LTE is also underway (e.g., also known as the 5th generation mobile communication system (5G), 5G+, New Radio (NR), 3GPP Rel.15 and later, etc.).

[0004] Existing technical documents

[0005] Non-patent literature

[0006] Non-patent document 1: 3GPP TS 36.300V8.12.0 "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] The problem that the invention aims to solve

[0008] In future wireless communication systems (e.g., 5G, NR, etc.), it is envisioned that high speed and large capacity (e.g., enhanced Mobile Broadband (eMBB)), a massive number of terminals (e.g., massive Machine Type Communication (mMTC), Internet of Things (IoT)), ultra-reliable and low-latency (e.g., ultra-reliable and low-latency communications (URLLC)) and multiple services (also known as use cases, communication types, etc.) with different communication requirements will coexist.

[0009] For example, since Rel.16, research is underway on prioritizing signals / channels and controlling communication based on the individual priorities assigned to each signal / channel. For instance, it is envisioned that in the case of overlapping signals / channels, transmission and reception would be controlled based on the priorities of each signal / channel.

[0010] In addition, it is envisioned that, in order to meet communication requirements for latency reduction and / or reliability, scheduled uplink (UL) transmissions may be cancelled (also known as cancellation, preemption, interruption, etc.).

[0011] However, the control of UL transmission based on cancellation information in cases of overlapping UL transmissions has not been sufficiently studied. For example, when UL transmissions are prioritized, how to control priority-based UL transmission control and UL transmission based on cancellation information becomes a problem.

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

[0013] Methods for solving problems

[0014] The terminal according to one aspect of this disclosure is characterized by having: a receiving unit for receiving downlink control information containing information related to the cancellation of UL transmissions; and a control unit for controlling, in the event that multiple UL transmissions overlapping in a time region are scheduled or set, and at least one of the multiple UL transmissions utilizes the resources for canceling the UL transmissions, to first apply one of a first UL transmission control and a second UL transmission control and then apply the other, 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 transmissions.

[0015] Invention Effects

[0016] According to one method disclosed herein, UL transmission can be performed appropriately even when cancellation of UL transmission is supported. Attached Figure Description

[0017] Figure 1 is a diagram illustrating an example of priority-based UL transmission control.

[0018] Figure 2 is a diagram illustrating other examples of priority-based UL transmission control.

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

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

[0021] Figure 5 This diagram illustrates an example of a PUSCH message being cancelled via a UL cancellation instruction.

[0022] Figure 6 This diagram illustrates an example of UL transmission control based on a UL cancellation instruction.

[0023] Figure 7 This is a diagram illustrating an example of UL transmission control involved in the first method.

[0024] Figure 8 This is a diagram illustrating other examples of UL transmission control involved in the first method.

[0025] Figure 9 This is a diagram illustrating other examples of UL transmission control involved in the first method.

[0026] Figure 10 This is a diagram illustrating other examples of UL transmission control involved in the first method.

[0027] Figure 11This is a diagram illustrating other examples of UL transmission control involved in the first method.

[0028] Figure 12 This is a diagram illustrating other examples of UL transmission control involved in the first method.

[0029] Figure 13 This is a diagram illustrating other examples of UL transmission control involved in the first method.

[0030] Figure 14 This is a diagram illustrating an example of UL transmission control involved in the second method.

[0031] Figure 15 This is a diagram illustrating other examples of UL transmission control involved in the second method.

[0032] Figure 16 This is a diagram illustrating other examples of UL transmission control involved in the second method.

[0033] Figure 17 This is a diagram illustrating other examples of UL transmission control involved in the second method.

[0034] Figure 18 This is a diagram illustrating other examples of UL transmission control involved in the second method.

[0035] Figure 19 This is a diagram illustrating an example of the schematic structure of a wireless communication system according to one embodiment.

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

[0037] Figure 21 This is a diagram illustrating an example of the structure of a user terminal according to one embodiment.

[0038] Figure 22 This is a diagram illustrating an example of the hardware structure of a base station and a user terminal according to one embodiment. Detailed Implementation

[0039] <Business Type>

[0040] In future wireless communication systems (e.g., NR), we envision further advancements in mobile broadband (e.g., enhanced mobile broadband (eMBB)), enabling massively simultaneous machine-type communications (e.g., massive machine-type communications (mMTC), Internet of Things (IoT)), and highly reliable and low-latency communications (e.g., ultra-reliable and low-latency communications (URLLC)). These service types (also referred to as services, service types, communication types, use cases, etc.) are required. For example, URLLC demands lower latency and higher reliability compared to eMBB.

[0041] The business type can also be identified at 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) Form

[0045] DCI format

[0046] • The wireless network temporary identifier (RNTI) used in the scrambling (masking) of the Cyclic Redundancy Check (CRC) bits included (attached) to this DCI (DCI format)

[0047] • RRC (Radio Resource Control) parameters

[0048] • Specific RNTIs (e.g., RNTIs used in URLLC, MCS-C-RNTIs, etc.)

[0049] Search Space

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

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

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

[0053] • The RNTI used in the CRC scrambling of the DCI used to schedule this PDSCH (e.g., which one of C-RNTI or MCS-C-RNTI is CRC scrambled).

[0054] Furthermore, the service type of an SR can also be determined based on a high-level parameter used as the SR's identifier (SR-ID). This high-level parameter can also indicate whether the SR's service type is eMBB or URLLC.

[0055] Furthermore, the service type of CSI can also be determined based on configuration information related to the CSI report (CSIreportSetting), the DCI type used in the trigger, or DCI transmission parameters. This configuration information and DCI type can also indicate whether the CSI service type is eMBB or URLLC. Additionally, this configuration information can also be higher-level parameters.

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

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

[0058] • The RNTI used in the CRC scrambling of the DCI used to schedule this PUSCH (e.g., whichever is CRC scrambled, C-RNTI or MCS-C-RNTI).

[0059] Business types can also be associated with communication requirements (such as delay, error rate, and request conditions) and data types (such as sound and data).

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

[0061] For example, the user (U) plane latency requirement for eMBB could also include a downlink U-plane latency of 4ms and an uplink U-plane latency of 4ms. On the other hand, the U-plane latency requirement for URLLC could also include a downlink U-plane latency of 0.5ms and an uplink U-plane latency of 0.5ms. Furthermore, the reliability requirement for URLLC could also include a 32-byte error rate of 10 in a 1ms U-plane latency. -5 The situation.

[0062] Furthermore, as an enhanced Ultra Reliable and Low Latency Communications (eURLLC) study, the focus is on maximizing the reliability of services using unicast data. Hereinafter, without distinguishing between URLLC and eURLLC, it will be referred to simply as URLLC.

[0063] <Priority Setting>

[0064] In NR versions below Rel.16, research is underway on assigning multiple levels (e.g., two levels) of priority to specific signals or channels. For example, it is envisioned that different priorities be assigned to each signal or channel corresponding to different service types (also known as services, service types, communication types, usage scenarios, etc.) for communication control (e.g., transmission control in case of collisions). Thus, for the same signal or channel, different priorities can be assigned based on service type, etc., to control communication.

[0065] Priorities can also be set for at least one of the following: signals (e.g., UCI of HARQ-ACK, reference signals, etc.), channels (PDSCH, PUSCH, PUCCH, etc.), reference signals (e.g., Channel State Information (CSI), Sounding Reference Signal (SRS), etc.), scheduling requests (SR), and HARQ-ACK codebooks. Furthermore, priorities can be set separately for the PUCCH used in SR transmissions, the PUCCH used in HARQ-ACK transmissions, and the PUCCH used in CSI transmissions.

[0066] Priorities can also be defined by a first priority (e.g., high) and a second priority that is lower than the first priority (e.g., low). Alternatively, more than three priorities can be set.

[0067] For example, priorities can be set for HARQ-ACKs used for dynamically scheduled PDSCHs, HARQ-ACKs used for semi-persistent PDSCHs (SPSPDSCHs), and HARQ-ACKs used for releasing SPS PDSCHs. Alternatively, priorities can be set for the HARQ-ACK codebooks corresponding to these HARQ-ACKs. Furthermore, when setting priorities for PDSCHs, the priority of the PDSCH can be replaced with the priority of the HARQ-ACK for that PDSCH.

[0068] In addition, priorities can be set for PUSCHs based on dynamic permissions, PUSCHs based on set permissions, etc.

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

[0070] The priority of a dynamically licensed PUSCH can also be notified by the DCI that schedules the PUSCH. The priority of a configuration-licensed PUSCH can also be set by higher-level parameters (e.g., priority). A-SRS triggered by P-SRS / SP-SRS or DCI (e.g., DCI format 0_1 / DCI format 2_3) can also be set with a specific priority (e.g., low).

[0071] (Overlapping of UL transmissions)

[0072] In the event of multiple overlapping (or conflicting) UL signals / UL channels, the UE can also control UL transmission based on priority.

[0073] The overlap of multiple UL signals / UL channels can also refer to the overlap of time resources (or time resources and frequency resources) of multiple UL signals / UL channels, or the overlap of transmission timing of multiple UL signals / UL channels. Time resources can also be replaced by time regions or time domains. Time resources can also be symbols, time slots, sub-time slots, or subframe units.

[0074] Overlapping of multiple UL signals / UL channels within the same UE (e.g., intra-UE) can also refer to overlapping of multiple UL signals / UL channels in at least the same time resources (e.g., symbols). Furthermore, UL signal / UL channel conflict between different UEs (e.g., inter-UE) can also mean overlapping of multiple UL signals / UL channels in the same time resources (e.g., symbols) and frequency resources (e.g., RBs).

[0075] For example, when multiple UL signals / UL channels with the same priority overlap, the UE controls the multiple UL signals / UL channels to multiplex them into a single UL channel for transmission (see reference). Figure 1A ).

[0076] exist Figure 1A The diagram illustrates a case where a HARQ-ACK (or PUCCH for HARQ-ACK transmission) with a first priority (high) overlaps with a UL data / UL-SCH (or PUSCH for UL data / UL-SCH transmission) 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 event of overlapping multiple UL signals / UL channels with different priorities, the UE can also control the transmission to prioritize high-priority UL transmissions (e.g., prioritize high-priority UL transmissions) and prevent (e.g., discard) low-priority UL transmissions (see reference). Figure 1B ).

[0078] Figure 1BThe diagram illustrates a scenario where UL data / HARQ-ACK (or the UL channel used for transmitting UL data / HARQ-ACK) with a first priority (high) overlaps with UL data / HARQ-ACK (or the UL channel used for transmitting UL data / HARQ-ACK) with a second priority (low). In this case, the UE controls the transmission to discard the lower-priority UL data / HARQ-ACK and prioritize the transmission of the higher-priority UL data / HARQ-ACK. Alternatively, the UE can also modify (e.g., delay or offset) the transmission timing of the lower-priority UL data / HARQ-ACK.

[0079] In cases where more than two (or three) UL signals / UL channels overlap in the time region (see reference) Figure 2A Under this condition, transmission can also be controlled in two steps. In the first step, UL transmissions of the same priority are multiplexed into a single UL channel (see reference). Figure 2B In the second step, control can also be implemented to prioritize higher-priority UL transmissions and discard lower-priority UL transmissions among UL transmissions with different priorities (see [reference]). Figure 2C ).

[0080] (Semi-persistent scheduling)

[0081] In NR, semi-persistent scheduling (SPS) is supported, which can be configured via higher-layer signaling (e.g., RRC). SPS can also be configured per serving cell, per BWP, or per carrier. For example, the activation / deactivation of DLSPS can be controlled separately 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 via PDCCH (or DCI). Deactivation can also be replaced by release. When DL SPS activation is indicated via PDCCH, the UE can also control the reception operation of semi-persistent PDSCH that is controlled to be transmitted / allocated using specific transmission conditions. The reception operation can also be replaced by monitoring, decoding, or demodulation processing of PDCCH (or DCI).

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

[0084] Figure 3 This illustrates an example of semi-persistent PDSCH (SPS PDSCH) transmission. Here, we show a case where the periodicity is set to 20 ms and the applied subcarrier spacing is set to 15 kHz. Of course, the transmission conditions for PDSCH are not limited to these.

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

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

[0087] Upon receiving a DCI indicating SPS PDSCH deactivation, the UE can also control the process to prevent SPS PDSCH reception. The UE can also provide HARQ-ACK feedback for the DCI indicating SPS PDSCH deactivation. For example, the UE can also send a HARQ-ACK for the DCI using the PUCCH. Conditions such as the timing of HARQ-ACK (or PUCCH) transmission (e.g., K1) can also be notified to the UE using the DCI indicating SPS PDSCH deactivation (see reference). Figure 4 ).

[0088] It is also envisioned that HARQ-ACK for SPS PDSCH and other UL transmissions (e.g., PUSCH / SRS) may overlap in time zones. In this case, the priority of each UL transmission can also be considered to control UL transmissions.

[0089] Overlap between HARQ-ACK for SPS PDSCH and other UL transmissions can also be controlled to prevent it from occurring under certain conditions. For example, it can be controlled so that when the HARQ-ACK for SPS PDSCH has a high priority, other UL transmissions (PUSCH / PUCCH) with low priority are not dynamically scheduled in the area overlapping with the HARQ-ACK. The UE can also schedule other UL transmissions with low priority via DCI without anticipating overlap with the (high) HARQ-ACK for SPS PDSCH.

[0090] On the other hand, when the HARQ-ACK for SPS PDSCH has a low priority, other UL transmissions (PUSCH / PUCCH) can also be dynamically scheduled or semi-statically set in the area overlapping with the HARQ-ACK.

[0091] (Cancellation instruction sent by UL)

[0092] Consider the following scenario: With the introduction of service types with different priorities, we want to prioritize the UL transmissions scheduled later compared to the initially scheduled UL transmission. For example, also consider the following scenario: After scheduling a first UL transmission (e.g., eMBB) for a first UE, we want to use the resources allocated to that first UL transmission to schedule a second UL transmission (e.g., URLLC) for a second UE.

[0093] Therefore, before the initially scheduled UL channel / signal (e.g., PUSCH) is actually transmitted, the cancellation of the UL channel / signal is considered, and other UL channels / signals are scheduled for the resources of the cancelled UL channel / signal.

[0094] Therefore, UL cancellation indications are being researched for the purpose of cancelling specific UL transmissions (or UL signals / UL channels). UL cancellation indications can also be referred to as UL cancellation indicators.

[0095] For example, a UL cancellation indication can enable UL transmissions for other UEs (e.g., URLLC UL transmissions) by cancelling a UL transmission scheduled / set for one UE (e.g., eMBB UL transmission) (e.g., reference). Figure 5 ). Figure 5This illustrates an example of canceling PUSCH#1 using a UL cancellation indication when there is an overlap between an eMBB UL transmission scheduled for UE#1 (e.g., PUSCH#1) and a UL transmission scheduled for URLLC UE#2 (e.g., PUSCH#2).

[0096] The UL cancellation instruction can also specify at least certain resources for which the UL transmission is cancelled (e.g., frequency resources (PRB) and time resources (symbols)). Here, a case is shown where a portion of the resources used in the transmission of PUSCH#1 corresponds to the resources specified by the UL cancellation instruction.

[0097] Figure 5 In this context, if UE#1 detects a UL cancellation indication, UE#1 cancels (suspends, aborts) UL transmission. Canceling UL transmission can also be replaced by preempting UL transmission, acquiring UL transmission first, or replacing UL transmission.

[0098] A UL cancellation instruction can also interrupt / delay scheduled UL transmissions for a UE that has received the UL cancellation instruction. Furthermore, a UL cancellation instruction can also be used by a UE that has received the UL cancellation instruction to notify resources that it does not wish to perform any transmissions for that UE.

[0099] To implement UL cancellation indication, research is underway to support at least group common (GC) downlink control information (DCI, Physical Downlink Control Channel (PDCCH)) in the cancellation indication. This DCI can also utilize a specific DCI format (e.g., DCI format 2_4).

[0100] For example, information related to frequency resources (e.g., PRB) and time resources (e.g., symbols) transmitted by the UL can be cancelled and notified to more than one UE via a specific DCI format. Additionally, UE-specific DCI for UL cancellation indication can also be supported.

[0101] Alternatively, a UL cancellation instruction (e.g., DCI format 2_4) may be applied only for a specific UL transmission or for a DCI that instructs / schedules that specific UL transmission (e.g., UL authorization) under certain conditions. A specific UL transmission may also be at least one of a PUSCH and an SRS. A specific condition may also be that the ending symbol of the PDCCH used in a UL-authorized transmission precedes the first symbol of the PDCCH used in a UL cancellation instruction transmission.

[0102] Under certain conditions, the UE cancels UL transmissions using resources notified via UL cancellation indication (e.g., DG-PUSCH#1) (see reference). Figure 6 ).

[0103] On the other hand, under certain conditions, the UE may not cancel the UL transmission using the resources notified via the UL cancellation indication. For example, consider a case where the UE receives a UL permission to schedule a UL transmission using the resources notified via the UL cancellation indication. In such a case, if the last symbol of the PDCCH used in the transmission of this UL permission does not precede the first symbol of the PDCCH used in the transmission of the UL cancellation indication, the UE may still perform a UL transmission using the resources notified via the UL cancellation indication (e.g., DG-PUSCH#2) (see reference). Figure 6 Alternatively, in this case, DG-PUSCH#2 can also be configured to be scheduled to a region that does not overlap with the canceled DG-PUSCH#1.

[0104] UL transmissions that are notified via DCI (e.g., UL Cl) can also be determined based on the presence or absence of / being set as a priority for that UL transmission by higher-level parameters.

[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 for which the UL cancellation indication is applied can also be determined based on the setting / notification of specific higher-level parameters (e.g., applicabilityforCI).

[0106] When this specific higher-layer parameter is set, the UE can also apply the UL cancellation indication only for low-priority UL transmissions (e.g., those set to second priority (low)). In other words, when this specific higher-layer parameter is set, the UE can also apply the UL cancellation indication only for high-priority UL transmissions (e.g., those set to first priority (high)). The operation of applying the UL cancellation indication only for transmissions of second-priority (low) ULs that have been notified / set can also be referred to as the first UE operation (Behavioure #1).

[0107] Without setting specific higher-layer parameters, the UE can also apply the UL cancellation instruction regardless of the UL transmission priority. This operation of applying the UL cancellation instruction regardless of the UL transmission priority can also be referred to as Behavioure #2.

[0108] Alternatively, specific high-level parameters can be set / notified to the UE by the UL sending the UL cancellation instruction (e.g., priority, etc.).

[0109] In this way, by controlling the cancellation of UL transmissions based on the UL cancellation indication contained 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 based on cancellation information becomes a problem. For example, when multiple UL transmissions overlap, how to control priority-based transmission control and UL cancellation indication-based transmission control becomes a problem.

[0111] For example, when the first UL transmission overlaps with the second UL transmission, the application of priority-based transmission control (e.g., multiplexing / discarding) and UL cancellation-based transmission control (e.g., UL transmission cancellation) becomes problematic.

[0112] As one aspect of this embodiment, the inventors of this invention focused on the existence of priority-based UL transmission control and UL transmission control based on UL cancellation indication in the case of multiple overlapping UL transmissions, and studied the application of multiple UL transmission control, thus conceiving this aspect of the embodiment.

[0113] Furthermore, the inventors of this invention, focusing on the overlap of HARQ-ACK (high) for SPS PDSCH and other UL transmissions (e.g., PUSCH based on setting permissions), and the overlap of HARQ-ACK (low) for SPS PDSCH and other UL transmissions, studied the application of multiple UL transmission control in such cases and conceived of one embodiment of this invention.

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

[0115] In addition, in this disclosure, "A / B" may be replaced with at least one of A and B, and "A / B / C" may be replaced with at least one of A, B and C.

[0116] The following explanation uses the case of overlapping / conflicting UL transmissions, namely the first UL transmission and the second UL transmission, as an example, but it can also be applied to cases where more than three UL transmissions overlap / conflict.

[0117] In the following description, the first UL transmission is illustrated using PUCCH for HARQ-ACK (first method) of dynamically scheduled PDSCH or PUCCH for HARQ-ACK (second method) of SPS PDSCH, but it is not limited to these examples. The first UL transmission can be a PUCCH for transmission of other UCIs (e.g., SR, CSI) besides HARQ-ACK, or any other UL transmission besides PUCCH. Furthermore, the second UL transmission is illustrated using PUSCH as an example, but it is not limited to this example. The second UL transmission can also be any other UL transmission (e.g., SRS).

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

[0119] (First method)

[0120] In the first approach, the application of priority-based UL transmission control and UL transmission control based on UL cancellation indication to overlapping first and second UL transmissions is described.

[0121] Priority-based UL transmission control can also be a first operation that multiplexes / maps the first and second UL transmissions to a common UL channel based on priority, or a second operation that prioritizes one of the first and second UL transmissions while discarding the other. Alternatively, the first operation can be applied when the first and second UL transmissions have the same priority, and the second operation can be applied when the first and second UL transmissions have different priorities.

[0122] UL transmission control based on a UL cancellation instruction (e.g., DCI format 2_4) can also be an operation to cancel UL transmissions that utilize at least a portion of the resources notified via the UL cancellation instruction. UL transmission control based on a UL cancellation instruction can also be applied when the ending symbol of a PDCCH used in a UL-permitted transmission precedes the first symbol of a PDCCH used in a UL-cancelled transmission.

[0123] The UE can also control UL transmission by using at least one of the following operations 1-1 to 1-3 when the first UL transmission overlaps with the second UL transmission.

[0124] <Operation 1-1>

[0125] The UE performs control to always apply one of a first transmission control (e.g., priority-based UL transmission control) and a second transmission control (e.g., UL transmission control based on UL cancellation indication) first (or preferentially) before applying the other.

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

[0127] Figure 7 The following situation is illustrated: a first UL transmission set to second priority (low) and a second UL transmission set to second priority (low) overlap, with the second UL transmission utilizing part / all of the resources notified via UL cancellation indication.

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

[0129] The UE can also determine the transmission timing of HARQ-ACK (or, the PUCCH used for HARQ-ACK) based on information contained in the DCI of the PDSCH (e.g., K). Here, the case where the offset between the PDSCH and the PUCCH used for HARQ-ACK satisfies a specific timeline is shown (e.g., more than N1+d). 1，1 (In the case of +1 symbol large). N1 can also be a value determined based on at least one of the higher-layer parameters (dmrs-AdditionalPosition) related to the PDSCH processing capability, subcarrier spacing, and DMRS additional position. 1，1 It can also be a value determined based on the PDSCH process capability, PDSCH mapping type, corresponding PDCCH, and the number of PDSCH symbols.

[0130] The UE can also determine the transmission timing of the PUSCH based on information contained in the DCI (e.g., K) of the PUSCH scheduling. Here, the case where the offset between the DCI (or PDCCH) and the PUSCH satisfies a specific timeline is shown (e.g., more than N²+d). 2，1 (In the case of +1 symbol large). N2 can also be a value determined based on at least one of the higher-layer parameters (dmrs-AdditionalPosition) related to the PUSCH processing capability, subcarrier spacing, and DMRS additional position. 2，1 It can also be a value determined based on the structure of the allocated symbols of the PUSCH. For example, it could be a value where the initial symbols of the PUSCH allocation consist only of DMRS. 2，1 =0, and in all other cases, d 2，1 =1.

[0131] The UE can also determine the location of the UL cancellation resource based on the UL cancellation indication. Here, we show the case where the offset between the DCI (or PDCCH) and the UL cancellation resource meets a specific timeline (e.g., more than T'). proc，2 (The case of large code elements). T' proc，2 It can also be N2+d 2，1 Symbol. N2 can also be a value determined based on at least one of the higher-layer parameters (dmrs-Additional Position) related to the PUSCH processing capability, subcarrier spacing, and DMRS additional position. Furthermore, N2 can also be applied with UE capability 2. 2，1 It can also be derived from d offset ·2 -μUL / 2 -μ Indicates. d offset It can also be a value notified via higher-level parameters (e.g., delta_offset). μ can also correspond to the structure of the PDCCH subcarrier spacing and the minimum subcarrier spacing in the structure set via higher-level parameters.

[0132] Additionally, priority-based transmission control / UL cancellation indication-based transmission control may not be applied if a specific timeline is not met.

[0133] also, Figure 7The diagram illustrates a scenario where the PDCCH (e.g., the last symbol) used in the transmission of the DCI that schedules the PUSCH precedes the PDCCH (e.g., the first symbol) used in the transmission of the UL cancellation indication. Similarly, it illustrates a scenario where the PDCCH (e.g., the last symbol) used in the transmission of the DCI that schedules the PDSCH precedes the PDCCH (e.g., the first symbol) used in the transmission of the UL cancellation indication.

[0134] The UE first performs priority-based UL transmission control. Figure 7 In this process, the UE multiplexes the first and second UL transmissions with the same priority onto a common UL channel. Specifically, the UE controls the multiplexing of the first UL transmission (HARQ-ACK) onto the second UL transmission (PUSCH). The multiplexed UL channel can be predefined in the specification or notified to the UE from the network via DCI / higher-layer signaling.

[0135] Next, the UE performs UL transmission control based on the UL cancellation indication. Figure 7 In this case, the resources notified via the UL cancellation indication overlap with the allocated resources of the second UL transmission (here, PUSCH) in the time region, therefore the UE cancels the second UL transmission. Here, the HARQ-ACK (first UL transmission) multiplexed for PUSCH is also canceled.

[0136] Additionally, if the last symbol of the PDCCH used in the DCI transmission of the scheduled PUSCH is after the first symbol of the PDCCH used in the transmission of the UL cancellation indication, the second UL transmission may also be transmitted without cancellation.

[0137] Figure 8 Shown in Figure 7 The second UL transmission is based on a PUSCH with set permission (e.g., a PUSCH not dynamically scheduled via DCI). It illustrates the case where the last symbol of the PDCCH used in the DCI transmission that schedules the PDSCH follows the first symbol of the PDCCH used in the UL cancellation indication transmission.

[0138] First, the UE performs priority-based UL transmission control. Figure 8 In this process, the UE multiplexes the first UL transmission and the second UL transmission, which have the same priority, onto a common UL channel. Here, the UE performs control to multiplex the first UL transmission (HARQ-ACK) onto the second UL transmission (based on the configured PUSCH).

[0139] Next, the UE performs UL transmission control based on the UL cancellation indication. Figure 8In this case, the resources notified via the UL cancellation indication overlap with the allocated resources of the second UL transmission (here, PUSCH) in the time region, therefore the UE cancels the second UL transmission. Here, the HARQ-ACK (first UL transmission) multiplexed for PUSCH is also canceled.

[0140] Figure 9 The following situation is illustrated: a first UL transmission set to first priority (high) overlaps with a second UL transmission set to second priority (low), and the second UL transmission utilizes part / all of the resources notified via UL cancellation indication.

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

[0142] In addition, Figure 9 The following scenario is illustrated: the last symbol of the PDCCH used in the transmission of the DCI scheduling PUSCH precedes the first symbol of the PDCCH used in the transmission of the UL cancellation indication. Furthermore, the following scenario is illustrated: the last symbol of the PDCCH used in the transmission of the DCI scheduling PDSCH precedes the first symbol of the PDCCH used in the transmission of the UL cancellation indication.

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

[0144] Next, the UE performs UL transmission control based on the UL cancellation indication. Figure 9 In this context, for the UE, although the resources notified via the UL cancellation indication overlap with the allocated resources of the second UL transmission (here, PUSCH) in the time zone, the second UL transmission is discarded. Therefore, the UE can also control the transmission to send the first UL transmission without performing the second UL transmission.

[0145] Figure 10 This illustrates a first UL transmission set to a second priority (low) that overlaps with a second UL transmission set to a first priority (high), where the second UL transmission utilizes a portion / all of the resources notified via UL cancellation indication.

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

[0147] In addition, Figure 10 The following scenario is illustrated: the last symbol of the PDCCH used in the transmission of the DCI scheduling PUSCH precedes the first symbol of the PDCCH used in the transmission of the UL cancellation indication. Furthermore, the following scenario is illustrated: the last symbol of the PDCCH used in the transmission of the DCI scheduling PDSCH precedes the first symbol of the PDCCH used in the transmission of the UL cancellation indication.

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

[0149] Next, the UE performs UL transmission control based on the UL cancellation indication. Figure 10 In the process, the resource notified by the UL cancellation indication overlaps with the allocated resource of the second UL transmission (here, PUSCH) in the time zone, so the UE cancels the second UL transmission.

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

[0151] Alternatively, the UE can also apply / prioritize UL transmission control based on UL cancellation indication (UL cancellation), followed by priority-based UL transmission control (e.g., UL intra-UE multiplexing / prioritization).

[0152] <Operation 1-2>

[0153] The UE can also autonomously determine the initial (or preferred) transmission control applied between the first transmission control (e.g., priority-based UL transmission control) and the second transmission control (e.g., UL transmission control based on UL cancellation indication). Alternatively, the initial (or preferred) transmission control can also be set to the UE from the network via higher-layer signaling, etc.

[0154] <Operations 1-3>

[0155] The UE can also determine, based on specific conditions, which transmission control should be applied first (or, with priority) between the first transmission control (e.g., priority-based UL transmission control) and the second transmission control (e.g., UL transmission control based on UL cancellation indication). The specific conditions could also be, for example, the reception timing of the corresponding DCI (or PDCCH).

[0156] For example, the UE can also determine the application sequence of 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 cancellation indication.

[0157] <Scenario 1>

[0158] The UE envisions the following scenario: after receiving at least one DCI for scheduling the PDSCH and one DCI for scheduling the PUSCH, it receives a DCI specifying a UL cancellation indication, through which the resources utilized in the transmission of the specified PUSCH are determined. In this case, the UE can also apply priority-based UL transmission control first, followed by UL transmission control based on the UL cancellation indication. Such operation can also be applied regardless of the priority of HARQ-ACK / PUSCH.

[0159] Figure 11 The following situation is illustrated: a first UL transmission set to the second priority (low) overlaps with a second UL transmission set to the second priority (low), and the second UL transmission utilizes part / all of the resources notified via UL cancellation indication.

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

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

[0162] The UE can also determine the PUSCH transmission timing 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 timeline (>N2+d). 2，1 The case of +1 code ().

[0163] The UE can 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 satisfies a specific timeline (>T'). proc (2-bit) case.

[0164] Additionally, if a specific timeline is not met, priority-based transmission control or UL-based cancellation indication transmission control may not be applied.

[0165] In addition, Figure 11 The following scenario is illustrated: After receiving / detecting the DCI for scheduling PDSCH and the DCI for scheduling PUSCH, the DCI indicating UL cancellation is received / detected. In this case, the UE performs UL transmission control based on the UL cancellation indication after performing priority-based UL transmission control.

[0166] exist Figure 11 In the process, the UE first performs priority-based UL transmission control. Figure 11 In this process, the UE multiplexes the first UL transmission and the second UL transmission, which have the same priority, onto a common UL channel. Here, the UE performs control to multiplex the first UL transmission (HARQ-ACK) onto the second UL transmission (here, PUSCH).

[0167] Next, the UE performs UL transmission control based on the UL cancellation indication. Figure 11 In this case, the resources notified via the UL cancellation indication overlap with the allocated resources of the second UL transmission (here, PUSCH) in the time region, therefore the UE cancels the second UL transmission. Here, the HARQ-ACK (first UL transmission) multiplexed for PUSCH is also canceled.

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

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

[0170] Next, the UE performs UL transmission control based on the UL cancellation indication. Figure 12In this context, for the UE, although the resources notified via the UL cancellation indication overlap with the allocated resources of the second UL transmission (here, PUSCH) in the time zone, the second UL transmission is discarded. Therefore, the UE can also control the transmission to send the first UL transmission without performing the second UL transmission.

[0171] <Scenario 2>

[0172] The UE envisions the following scenario: After receiving a DCI indicating a specified UL cancellation, it receives a DCI scheduling a PDSCH (or a HARQ-ACK corresponding to the PDSCH) and a PUSCH based on the set permission, utilizing the resources used in the transmission of the specified PUSCH via the UL cancellation indication. In this case, the UE can also first apply UL transmission control based on the UL cancellation indication, followed by priority-based UL transmission control. This operation can also be applied regardless of the priority of the HARQ-ACK / PUSCH.

[0173] In the case where the second UL transmission is based on the configured permission PUSCH, the UE can also determine the application sequence of UL transmission control based on the reception timing of the DCI with the specified UL cancellation indication and the reception timing of the PUSCH with the configured permission.

[0174] Figure 13 The following situation is illustrated: a first UL transmission set to second priority (low) and a second UL transmission set to second priority (low) overlap, with the second UL transmission utilizing part / all of the resources notified via UL cancellation indication.

[0175] The first UL transmission is shown as a HARQ-ACK (or PUCCH used for the HARQ-ACK transmission) for a PDSCH scheduled via DCI. The second UL transmission is shown as a PUSCH based on a configured permission (or UL data transmitted via that PUSCH).

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

[0177] The UE can 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 satisfies a specific timeline (>T'). proc (2-bit) case.

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

[0179] In addition, Figure 13 The following scenario is illustrated: After receiving / detecting the DCI indicating UL cancellation, the DCI for scheduling PDSCH and the DCI for scheduling PUSCH are received / detected. In this case, the UE performs priority-based UL transmission control after performing UL transmission control based on the UL cancellation indication.

[0180] exist Figure 13 In the process, the UE first performs UL transmission control based on the UL cancellation indication. Figure 13 In the process, the resource notified by the UL cancellation instruction overlaps with the allocated resource of the second UL transmission (here, PUSCH) in the time zone, thus the second UL transmission is cancelled.

[0181] Next, in Figure 13 In this process, the UE performs priority-based UL transmission control. However, since the second UL transmission has been cancelled and the first and second UL transmissions do not overlap, the UE can also perform control to transmit the first UL transmission.

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

[0183] (Second method)

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

[0185] The UE can also control UL transmission by using at least one of the following operations 2-1-1 to 2-1-2 when the second UL transmission is a UL transmission not scheduled through DCI (e.g., based on a PUSCH with set permission).

[0186] <Operation 2-1-1>

[0187] The UE performs control to apply one of the first transmission control (e.g., priority-based UL transmission control) and the second transmission control (e.g., UL transmission control based on UL cancellation indication) first (or, preferentially) the other.

[0188] For example, the UE may also apply / prioritize priority-based UL transmission control (e.g., ULintra-UE multiplexing / prioritization), followed by UL transmission control based on UL cancellation indication (UL cancellation).

[0189] Figure 14 The following situation is illustrated: a first UL transmission set to first priority (high) and a second UL transmission set to second priority (low) overlap, with the second UL transmission utilizing part / all of the resources notified via UL cancellation indication.

[0190] The first UL transmission is shown as a HARQ-ACK (or PUCCH used for the HARQ-ACK transmission) for an SPS PDSCH activated via DCI. The second UL transmission is shown as a PUSCH based on a configured permission (or UL data transmitted via that PUSCH).

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

[0192] Next, the UE performs UL transmission control based on the UL cancellation indication. Figure 14 In this context, for the UE, although the resources notified via the UL cancellation indication overlap with the allocated resources of the second UL transmission (here, PUSCH) in the time zone, the second UL transmission is discarded. Therefore, the UE can also control the transmission to send the first UL transmission without performing the second UL transmission.

[0193] Figure 15 The following situation is illustrated: a first UL transmission set to the second priority (high) and a second UL transmission set to the second priority (low) overlap, with the second UL transmission utilizing part / all of the resources notified via UL cancellation indication.

[0194] The first UL transmission is shown as a HARQ-ACK (or PUCCH used for the HARQ-ACK transmission) for an SPS PDSCH activated via DCI. The second UL transmission is shown as a PUSCH based on a configured permission (or UL data transmitted via that PUSCH).

[0195] First, the UE performs priority-based UL transmission control. Figure 15In this process, the UE multiplexes the first UL transmission and the second UL transmission, which have the same priority, onto a common UL channel. Here, the UE performs control to multiplex the first UL transmission (HARQ-ACK) onto the second UL transmission (here, PUSCH).

[0196] Next, the UE performs UL transmission control based on the UL cancellation indication. Figure 15 In this case, the resources notified via the UL cancellation indication overlap with the allocated resources of the second UL transmission (here, PUSCH) in the time region, therefore the UE cancels the second UL transmission. Here, the HARQ-ACK (first UL transmission) multiplexed for PUSCH is also canceled.

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

[0198] Alternatively, the UE can also apply / prioritize UL transmission control based on UL cancellation indication (UL cancellation), followed by priority-based UL transmission control (e.g., UL intra-UE multiplexing / prioritization).

[0199] <Operation 2-1-2>

[0200] The UE can also autonomously determine the initial (or preferred) transmission control applied between the first transmission control (e.g., priority-based UL transmission control) and the second transmission control (e.g., UL transmission control based on UL cancellation indication). Alternatively, the initial (or preferred) transmission control can also be set to the UE from the network via higher-layer signaling, etc.

[0201] The UE can also control UL transmission by using at least one of the following operations 2-2-1 to 2-2-3 when the second UL transmission is a UL transmission scheduled by DCI (e.g., based on dynamic permission PUSCH).

[0202] <Operation 2-2-1>

[0203] The UE performs control to apply a first transmission control (e.g., priority-based UL transmission control) and a second transmission control (e.g., UL transmission control based on UL cancellation indication), applying one of them first (or prioritizing the other).

[0204] For example, the UE may also apply / prioritize priority-based UL transmission control (e.g., ULintra-UE multiplexing / prioritization), followed by UL transmission control based on UL cancellation indication (UL cancellation).

[0205] Figure 16 The following situation is illustrated: a first UL transmission set to second priority (high) and a second UL transmission set to first priority (high) overlap, with the second UL transmission utilizing part / all of the resources notified via UL cancellation indication.

[0206] The first UL transmission is shown as a HARQ-ACK (or PUCCH used for the HARQ-ACK transmission) for an SPS PDSCH activated via DCI. The second UL transmission is shown as a PUSCH (or UL data transmitted via the PUSCH) dynamically scheduled via DCI.

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

[0208] Next, the UE performs UL transmission control based on the UL cancellation indication. Figure 16 In the process, the resource notified by the UL cancellation indication overlaps with the allocated resource of the second UL transmission (here, PUSCH) in the time zone, so the UE cancels the second UL transmission.

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

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

[0211] <Operation 2-2-2>

[0212] The UE can also autonomously determine the initial (or preferred) transmission control applied between the first transmission control (e.g., priority-based UL transmission control) and the second transmission control (e.g., UL transmission control based on UL cancellation indication). Alternatively, the initial (or preferred) transmission control can also be set to the UE from the network via higher-layer signaling, etc.

[0213] <Operation 2-2-3>

[0214] The UE can also determine, based on specific conditions, which transmission control should be applied first (or, with priority) between the first transmission control (e.g., priority-based UL transmission control) and the second transmission control (e.g., UL transmission control based on UL cancellation indication). The specific conditions could also be, for example, the reception timing of the corresponding DCI (or PDCCH).

[0215] For example, the UE can also determine the application sequence of 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 cancellation indication.

[0216] <Scenario 1>

[0217] The UE envisions the following scenario: After receiving the DCI for activating the SPS PDSCH and the DCI for scheduling the PUSCH, it receives the DCI for specifying the UL cancellation indication, which determines the resources used in the transmission of the specified PUSCH. In this case, the UE can also apply priority-based UL transmission control first, followed by UL transmission control based on the UL cancellation indication. This operation can also be applied when the HARQ-ACK priority is second priority (low) and the PUSCH priority is first priority (high).

[0218] Figure 17 The following situation is illustrated: a first UL transmission set to the second priority (low) overlaps with a second UL transmission set to the second priority (low), and the second UL transmission utilizes part / all of the resources notified via UL cancellation indication.

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

[0220] The UE can also determine the timing of HARQ-ACK (or PUCCH used for HARQ-ACK) transmission based on the information contained in the DCI that activates PDSCH.

[0221] The UE can 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 timeline (>N2+d). 2，1 The case of +1 code ().

[0222] The UE can 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 satisfies a specific timeline (>T'). proc，2 (code element) situation.

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

[0224] also, Figure 17 The following scenario is illustrated: After receiving / detecting the DCI that activates the PDSCH and the DCI that schedules the PUSCH, the UE receives / detects the DCI that indicates UL cancellation. In this case, the UE performs UL transmission control based on the UL cancellation indication after performing priority-based UL transmission control.

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

[0226] Next, the UE performs UL transmission control based on the UL cancellation indication. Figure 17 In the process, the resource notified by the UL cancellation indication overlaps with the allocated resource of the second UL transmission (here, PUSCH) in the time zone, so the UE cancels the second UL transmission.

[0227] <Scenario 2>

[0228] The UE envisions the following scenario: After receiving a DCI indicating a specified UL cancellation, it receives a DCI scheduling a PUSCH, and the resources utilized during the transmission of the specified PUSCH are determined by the UL cancellation indication. In this case, the UE can also first apply UL transmission control based on the UL cancellation indication, and then apply priority-based UL transmission control.

[0229] Figure 18The following situation is illustrated: a first UL transmission set to second priority (low) and a second UL transmission set to first priority (high) overlap, with the second UL transmission utilizing part / all of the resources notified via UL cancellation indication.

[0230] The first UL transmission is shown as a HARQ-ACK (or PUCCH used for the HARQ-ACK transmission) for an SPS PDSCH activated via DCI. The second UL transmission is shown as a PUSCH (or UL data transmitted via the PUSCH) dynamically scheduled via DCI.

[0231] The UE can also determine the timing of HARQ-ACK (or PUCCH used for HARQ-ACK) transmission based on the information contained in the DCI that activates PDSCH.

[0232] The UE can 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 timeline (>N2+d). 2，1 The case of +1 code ().

[0233] The UE can 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 satisfies a specific timeline (>T'). proc，2 (code element) situation.

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

[0235] In addition, Figure 18 The diagram illustrates the case where the UE receives / detects a DCI indicating a UL cancellation indication, followed by the reception / detection of a DCI scheduling PUSCH. In this scenario, the UE performs priority-based UL transmission control after performing UL transmission control based on the UL cancellation indication.

[0236] exist Figure 18 In the process, the UE first performs UL transmission control based on the UL cancellation indication. Figure 18 In the process, the resource notified by the UL cancellation instruction overlaps with the allocated resource of the second UL transmission (here, PUSCH) in the time zone, thus the second UL transmission is cancelled.

[0237] Next, UE in Figure 18In this process, the UE performs priority-based UL transmission control. However, since the second UL transmission has already been cancelled and the first and second UL transmissions do not overlap, the UE can also control itself to transmit the first UL transmission.

[0238] Alternatively, the DCI used in the PUSCH scheduling is sent after the DCI that notifies the UL to cancel the instruction; therefore, control can be implemented to prevent the cancellation of the second UL transmission (PUSCH). In this case, the UE can also control the UL transmission based on the priority of the next application, to discard the first UL transmission and send the second UL transmission.

[0239] (change)

[0240] In both the first and second methods, the application of the UL cancellation instruction can be controlled by setting higher-level signaling. For example, if specific higher-level signaling (e.g., applicabilityforCI) is set, cancellation based on the UL cancellation instruction can be applied to UL transmissions of the second priority (low) while no UL cancellation instruction is applied to UL transmissions of the first priority. Furthermore, if no specific higher-level signaling is set, the UL cancellation instruction can be applied regardless of the priority of the UL transmission.

[0241] (Wireless Communication System)

[0242] The structure of a wireless communication system according to one embodiment of this disclosure will be described below. In this wireless communication system, communication is performed using any one or a combination of the wireless communication methods according to the above embodiments of this disclosure.

[0243] Figure 19 This is a diagram illustrating an example of the schematic structure of a wireless communication system according to one embodiment. The wireless communication system 1 may also be a system that uses Long Term Evolution (LTE) or 5th generation mobile communication system New Radio (5G NR) as standardized by the Third Generation Partnership Project (3GPP).

[0244] Furthermore, the wireless communication system 1 can also support dual connectivity between multiple radio access technologies (RATs) (Multi-RAT Dual Connectivity (MR-DC)). 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 (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] Wireless communication system 1 can also support dual connectivity between multiple base stations within the same RAT (e.g., MN and SN are dual connectivity of NR base stations (gNB) (NR-NR Dual Connectivity (NN-DC))).

[0247] The wireless communication system 1 may also include: a base station 11 forming a macro cell C1 with a relatively wide coverage area, and a base station 12 (12a-12c) configured within the macro cell C1 and forming a small cell C2 narrower than the macro cell C1. User terminals 20 may also be located within at least one cell. The configuration and number of each cell and user terminal 20 are not limited to the arrangement shown in the figure. Hereinafter, without distinguishing between base stations 11 and 12, they will be collectively referred to as base station 10.

[0248] User terminal 20 may also connect to at least one of multiple base stations 10. User terminal 20 may also utilize at least one of carrier aggregation (CA) using multiple component carriers (CC) and dual connectivity (DC).

[0249] Each CC can 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)). Macro cell C1 can also be included in FR1, and small cell C2 can also be included in FR2. For example, FR1 can also be a frequency band below 6 GHz (sub-6 GHz), and FR2 can also be a frequency band above 24 GHz (above-24 GHz). In addition, the frequency bands, definitions, etc. of FR1 and FR2 are not limited to these; for example, FR1 can also correspond to a frequency band higher than FR2.

[0250] In addition, user terminal 20 can also communicate in each CC using at least one of Time Division Duplex (TDD) and Frequency Division Duplex (FDD).

[0251] Multiple base stations 10 can also be connected via wired (e.g., fiber optic cable based on the Common Public Radio Interface (CPRI), X2 interface, etc.) or wireless (e.g., NR communication). For example, when NR communication between base stations 11 and 12 is used as a backhaul, base station 11, which is equivalent to a host station, can also be referred to as an Integrated Access Backhaul (IAB) donor, and base station 12, which is equivalent to a relay station, can also be referred to as an IAB node.

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

[0253] User terminal 20 can also be a terminal that supports at least one of the following communication methods: LTE, LTE-A, 5G, etc.

[0254] In wireless communication system 1, wireless access methods based on Orthogonal Frequency Division Multiplexing (OFDM) can also be used. For example, in at least one of the downlink (DL) and uplink (UL) links, Cyclic Prefix OFDM (CP-OFDM), Discrete Fourier Transform Spread OFDM (DFT-s-OFDM), Orthogonal Frequency Division Multiple Access (OFDMA), and Single Carrier Frequency Division Multiple Access (SC-FDMA) can also be used.

[0255] Wireless access methods can also be referred to as waveforms. In addition, in wireless communication system 1, other wireless access methods (e.g., other single-carrier transmission methods, other multi-carrier transmission methods) can also be applied in the wireless access methods of UL and DL.

[0256] In the wireless communication system 1, the downlink channel can also be a shared downlink channel (Physical Downlink Shared Channel (PDSCH)), a broadcast channel (Physical Broadcast Channel (PBCH)), or a downlink control channel (Physical Downlink Control Channel (PDCCH)) shared by each user terminal 20.

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

[0258] User data, high-level control information, and System Information Blocks (SIBs) are transmitted via PDSCH. User data and high-level control information can also be transmitted via PUSCH. Furthermore, Master Information Blocks (MIBs) can be transmitted via PBCH.

[0259] Lower-layer control information can also be transmitted via PDCCH. This lower-layer control information may include, for example, downlink control information (DCI), which includes scheduling information for at least one of PDSCH and PUSCH.

[0260] Additionally, the DCI for scheduling PDSCH can also be called DL allocation, DL DCI, etc., and the DCI for scheduling PUSCH can also be called UL authorization, UL DCI, etc. Furthermore, PDSCH can also be replaced with DL data, and PUSCH can also be replaced with UL data.

[0261] In PDCCH detection, a Control Resource Set (CORESET) and a search space can be utilized. A CORESET corresponds to the resources used to search for DCIs. The 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 CORESETs associated with a specific search space based on search space settings.

[0262] A search space can also correspond to a PDCCH candidate corresponding to one or more aggregation levels. One or more search spaces can 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" used in this disclosure can be used interchangeably.

[0263] Uplink control information (UCI) can also be transmitted via PUCCH, including at least one of the following: Channel State Information (CSI), delivery confirmation information (e.g., also known as Hybrid Automatic Repeat reQuest ACK knowledgement (HARQ-ACK), ACK / NACK, etc.), and Scheduling Request (SR). Random access preambles used for establishing a connection with the cell can also be transmitted via PRACH.

[0264] Additionally, in this disclosure, downlink, uplink, etc., may be described without the word "link". Furthermore, it may be described without "physical" at the beginning of various channels.

[0265] In wireless communication system 1, synchronization signals (SS) and downlink reference signals (DL-RS) can also be transmitted. In wireless communication system 1, as DL-RS, cell-specific reference signals (CRS), channel state information reference signals (CSI-RS), demodulation reference signals (DMRS), positioning reference signals (PRS), and phase tracking reference signals (PTRS) can also be transmitted.

[0266] Synchronization signals can be, for example, at least one of a primary synchronization signal (PSS) and a secondary synchronization signal (SSS). A signal block containing SS (PSS, SSS) and PBCH (and DMRS for PBCH) can also be called an SS / PBCH block, SS block (SSB), etc. Furthermore, SS, SSB, etc., can also be called reference signals.

[0267] Furthermore, in the wireless communication system 1, the uplink reference signal (UL-RS) can also transmit measurement reference signals (sounding reference signals (SRS)) and demodulation reference signals (DMRS). Additionally, the DMRS can also be referred to as a user terminal-specific reference signal (UE-specific reference signal).

[0268] (Base station)

[0269] Figure 20 This diagram illustrates an example of the structure of a base station according to one embodiment. The base station 10 includes a control unit 110, a transmit / receive unit 120, a transmit / receive antenna 130, and a transmission path interface (transmission line interface) 140. Alternatively, the control unit 110, the transmit / receive unit 120, the transmit / receive antenna 130, and the transmission path interface 140 may each be provided in more than one manner.

[0270] Furthermore, while this example primarily illustrates the functional blocks of the characteristic portions of this embodiment, it is also conceivable that the base station 10 may also possess other functional blocks required for wireless communication. Some of the processing of each unit described below may also be omitted.

[0271] The control unit 110 performs overall control of the base station 10. The control unit 110 can be composed of a controller, control circuit, etc., which are described based on common knowledge in the art to which this disclosure pertains.

[0272] The control unit 110 can also control signal generation and scheduling (e.g., resource allocation, mapping). The control unit 110 can also control transmission, reception, and measurement using the transmit / receive unit 120, transmit / receive antenna 130, and transmission path interface 140. The control unit 110 can also generate data, control information, sequences, etc., to be transmitted as signals and forward them to the transmit / receive unit 120. The control unit 110 can also perform call processing (setting, releasing, etc.) of the communication channel, status management of the base station 10, and management of wireless resources.

[0273] The transmitting / receiving 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 transmitting processing unit 1211 and a receiving processing unit 1212. The transmitting / receiving unit 120 can be composed of transmitters / receivers, RF circuits, baseband circuits, filters, phase shifters, measurement circuits, transmitting / receiving circuits, etc., as described based on common knowledge in the art to which this disclosure pertains.

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

[0275] The transmitting and receiving antenna 130 can be constructed from an antenna, such as an array antenna, as described based on common knowledge in the art to which this disclosure pertains.

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

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

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

[0279] The transmitting and receiving unit 120 (transmitting processing unit 1211) can also perform transmission processing such as channel coding (which may also include error correction coding), modulation, mapping, filter processing, Discrete Fourier Transform (DFT) processing (as needed), Inverse Fast Fourier Transform (IFFT) processing, precoding, and digital-to-analog conversion on the bit string to be transmitted, and output the baseband signal.

[0280] The transmitting and receiving unit 120 (RF unit 122) can also perform modulation, filtering, amplification, etc. on the baseband signal to the wireless frequency band, and transmit the wireless frequency band signal through the transmitting and receiving antenna 130.

[0281] On the other hand, the transmitting and receiving unit 120 (RF unit 122) can also amplify, filter, and demodulate the baseband signal for the wireless frequency band signal received by the transmitting and receiving antenna 130.

[0282] The transmitting and receiving unit 120 (receiving and processing unit 1212) can also perform receiving and processing on the acquired baseband signal, including 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 acquire user data.

[0283] The transmitting / receiving unit 120 (measurement unit 123) can also perform measurements related to the received signal. For example, the measurement unit 123 can also perform radio resource management (RRM) measurements, channel state information (CSI) measurements, etc., based on the received signal. The measurement unit 123 can 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 can also be output to the control unit 110.

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

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

[0286] The transmitting and receiving unit 120 can also transmit downlink control information containing information related to the cancellation of UL transmission.

[0287] The control unit 110 may also control the reception of UL transmissions in the case of multiple UL transmissions that are scheduled or set to overlap in time zones, or at least one of the multiple UL transmissions utilizing resources for canceling UL transmissions, by determining whether to apply one of a first UL transmission control based on the priority of each UL transmission and a second UL transmission control based on information related to the resources for canceling UL transmissions, and then apply the other.

[0288] The control unit 110 can also determine, in cases where the HARQ-ACK of a semi-persistently transmitted downlink shared channel overlaps with other UL transmissions in the time region, or when other UL transmissions utilize resources for canceling UL transmissions, whether to apply one of a first UL transmission control based on the priority corresponding to the HARQ-ACK and the other UL transmissions respectively, or a second UL transmission control based on information related to resources for canceling UL transmissions, and then apply the other control, to control the reception of UL transmissions.

[0289] (User terminal)

[0290] Figure 21 This diagram illustrates an example of the structure 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. Alternatively, the control unit 210, the transmitting / receiving unit 220, and the transmitting / receiving antenna 230 may each be provided as one or more.

[0291] Furthermore, while this example primarily illustrates the functional blocks of the characteristic portions of this embodiment, it is also conceivable that the user terminal 20 may also possess other functional blocks required for wireless communication. Some of the processing of each unit described below may also be omitted.

[0292] The control unit 210 performs overall control of the user terminal 20. The control unit 210 can be composed of a controller, control circuit, etc., which are described based on common knowledge in the art to which this disclosure pertains.

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

[0294] The transmitting / receiving 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 transmitting processing unit 2211 and a receiving processing unit 2212. The transmitting / receiving unit 220 may be composed of a transmitter / receiver, RF circuit, baseband circuit, filter, phase shifter, measurement circuit, transmitting / receiving circuit, etc., as described based on common knowledge in the art to which this disclosure pertains.

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

[0296] The transmitting and receiving antenna 230 can be constructed from an antenna, such as an array antenna, as described based on common knowledge in the art to which this disclosure pertains.

[0297] The transmitting / receiving unit 220 can also receive the downlink channel, synchronization signal, downlink reference signal, etc., mentioned above. The transmitting / receiving unit 220 can also transmit the uplink channel, uplink reference signal, etc., mentioned above.

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

[0299] The transmitting and receiving unit 220 (transmitting processing unit 2211) may, for example, perform PDCP layer processing, RLC layer processing (e.g., RLC retransmission control), MAC layer processing (e.g., HARQ retransmission control) on the data and control information obtained from the control unit 210, and generate the bit string to be transmitted.

[0300] The transmitting and receiving unit 220 (transmitting processing unit 2211) can also perform channel coding (which may 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 transmitted, and output the baseband signal.

[0301] Furthermore, the application of DFT processing can be based on the transform precoding settings. For a specific channel (e.g., PUSCH), if transform precoding is active (enabled), the transmit / receive unit 220 (transmit processing unit 2211) can perform DFT processing as described above for transmitting the channel using the DFT-s-OFDM waveform. Otherwise, the transmit / receive unit 220 (transmit processing unit 2211) can perform the aforementioned transmit processing without performing DFT processing.

[0302] The transmitting and receiving unit 220 (RF unit 222) can also perform modulation, filtering, amplification, etc. on the baseband signal to the wireless frequency band, and transmit the wireless frequency band signal through the transmitting and receiving antenna 230.

[0303] On the other hand, the transmitting and receiving unit 220 (RF unit 222) can also amplify, filter, and demodulate the baseband signal for the wireless frequency band signal received by the transmitting and receiving antenna 230.

[0304] The transmitting and receiving unit 220 (receiving and processing unit 2212) can also perform receiving and processing on the acquired baseband signal, 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 acquire user data.

[0305] The transmitting / receiving unit 220 (measurement unit 223) can also perform measurements related to the received signal. For example, the measurement unit 223 can also perform RRM measurements, CSI measurements, etc., based on the received signal. The measurement unit 223 can 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 can also be output to the control unit 210.

[0306] In addition, the transmitting unit and receiving unit of the user terminal 20 in this disclosure can also be configured by at least one transmitting / receiving unit 220 and transmitting / receiving antenna 230.

[0307] The transmitting and receiving unit 220 can also receive downlink control information containing information related to the cancellation of UL transmission.

[0308] The control unit 210 can also control, in the case of multiple UL transmissions that are scheduled or set to overlap in a time zone, and at least one of the multiple UL transmissions utilizing the resources for canceling the UL transmission, to first apply one of a first UL transmission control based on the priority of each UL transmission and a second UL transmission control based on information related to the resources for canceling the UL transmission, and then apply the other.

[0309] The control unit 210 can also perform control to apply, in cases where HARQ-ACK for a semi-persistently transmitted downlink shared channel overlaps with other UL transmissions in the time region, and other UL transmissions utilize resources to cancel the aforementioned UL transmissions, one of a first UL transmission control based on priorities corresponding to HARQ-ACK and other UL transmissions respectively, and a second UL transmission control based on information related to resources to cancel UL transmissions, and then the other.

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

[0311] Multiple UL transmissions can also include transmissions utilizing the uplink control channel and UL transmissions utilizing the 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 set by higher-layer signaling, and a probe reference signal.

[0313] (Hardware Structure)

[0314] Furthermore, the block diagrams used in the description of the above embodiments illustrate functional units. These functional blocks (structural units) are implemented through any combination of at least one of hardware and software. Moreover, the implementation method of each functional block is not particularly limited. That is, each functional block can be implemented using a single device that is physically or logically combined, or it can be implemented by directly or indirectly (e.g., using wired, wireless, etc.) connecting two or more physically or logically separate devices. A functional block can also be implemented by combining one or more of the aforementioned devices with software.

[0315] Here, the functions include judgment, decision, determination, calculation, calculation, processing, export, investigation, search, confirmation, receiving, sending, output, access, resolution, selection, choosing, establishing, comparison, assumption, expectation, regard as, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, and assigning, but are not limited to these. For example, a functional block (structural unit) that implements the sending function can also be called a transmitting unit, transmitter, etc. As described above, the implementation method is not particularly limited.

[0316] For example, in one embodiment of this disclosure, the base station, user terminal, etc., can also function as a computer for processing the wireless communication method of this disclosure. Figure 22 This diagram illustrates an example of the hardware structure of a base station and a user terminal according to one embodiment. The base station 10 and the user terminal 20 described above can also be physically configured as a computer device including a processor 1001, a memory 1002, a storage device 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, etc.

[0317] Furthermore, in this disclosure, terms such as apparatus, circuit, device, section, and unit are interchangeable. The hardware structure of base station 10 and user terminal 20 can be configured to include one or more of the apparatuses shown in the figures, or it can be configured not to include any of the apparatuses.

[0318] For example, only one processor 1001 is shown, but there can be multiple processors. Furthermore, processing can be performed by one processor, or simultaneously, sequentially, or by two or more processors using other methods. Additionally, processor 1001 can be implemented using more than one chip.

[0319] The functions of the base station 10 and the user terminal 20 are implemented, for example, by reading specific software (programs) into hardware such as the processor 1001 and the memory 1002, so that the processor 1001 can perform calculations and control communication via the communication device 1004, or control at least one of reading out and writing data in the memory 1002 and the storage device 1003.

[0320] The processor 1001, for example, enables the operating system to operate and control the computer as a whole. The processor 1001 may also be configured as a central processing unit (CPU) that includes interfaces with peripheral devices, control devices, arithmetic devices, registers, etc. For example, at least a portion of the control unit 110 (210), the transmit / receive unit 120 (220), etc., described above may also be implemented by the processor 1001.

[0321] Furthermore, the processor 1001 reads programs (program code), software modules, data, etc., from at least one of the storage 1003 and the communication device 1004 into the memory 1002, and performs various processes accordingly. As a program, a program that causes the 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 operating in the processor 1001; similar implementations can be made for other functional blocks.

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

[0323] Storage device 1003 may also be a computer-readable recording medium, such as at least one of a flexible disc, floppy disk, optical disk (e.g., compact disc ROM, CD-ROM), digital multifunction disk, Blu-ray disc, removable disk, hard disk, smart card, flash memory device (e.g., card, stick, key drive), magnetic stripe, database, server, or other suitable storage medium. Storage device 1003 may also be referred to as an auxiliary storage device.

[0324] The communication device 1004 is hardware (transmitting and receiving device) used for communication between computers via at least one of a wired network and a wireless network. It is also referred to as a network device, network controller, network interface card (NIC), communication module, etc. To implement at least one of, for example, Frequency Division Duplex (FDD) and Time Division Duplex (TDD), the communication device 1004 may be configured to include a high-frequency switch, a duplexer, a filter, a frequency synthesizer, etc. For example, the aforementioned transmitting and receiving unit 120 (220) and transmitting and receiving antenna 130 (230) 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] Input device 1005 is an input device that receives input from external sources (e.g., keyboard, mouse, microphone, switch, button, sensor, etc.). Output device 1006 is an output device that performs output to external sources (e.g., display, speaker, light-emitting diode (LED) lamp, etc.). Alternatively, input device 1005 and output device 1006 can also be an integrated structure (e.g., touch panel).

[0326] Furthermore, the processor 1001, memory 1002, and other devices are connected via a bus 1007 for communication of information. The bus 1007 can be a single bus or different buses can be used between the devices.

[0327] Furthermore, the base station 10 and the user terminal 20 can 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 this hardware can be used to implement some or all of the functional blocks. For example, the processor 1001 can also be implemented using at least one of these hardware components.

[0328] (Modified Example)

[0329] Furthermore, the terms described in this disclosure, as well as those necessary for understanding this disclosure, may be replaced with terms that have the same or similar meanings. For example, channel, symbol, and signal (signal or signaling) may be used interchangeably. Additionally, a signal may also be a message. A reference signal may also be abbreviated as RS, and may be referred to as pilot, pilot signal, etc., depending on the applied standard. Furthermore, a component carrier (CC) may also be referred to as 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) that constitutes the 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) independent of the parameter set (numerology).

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

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

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

[0334] Radio frames, subframes, time slots, mini-time slots, and symbols all represent time units for transmitting signals. Radio frames, subframes, time slots, mini-time slots, and symbols can also use their respective other names. Furthermore, the time units such as frames, subframes, time slots, mini-time slots, and symbols used in this disclosure can be used interchangeably.

[0335] For example, a subframe can also be called a TTI, multiple consecutive subframes can also be called a TTI, a time slot or a mini-time slot can also be called a TTI. That is to say, at least one of a subframe and a TTI can be a subframe in the existing LTE (1ms), a period shorter than 1ms (e.g., 1-13 symbols), or a period longer than 1ms. In addition, the unit representing TTI may not be called a subframe, but a time slot, mini-time slot, etc.

[0336] Here, TTI refers, for example, to the smallest unit of time for scheduling in wireless communication. For instance, in an LTE system, the base station schedules radio resources (frequency bandwidth, transmit power, etc., available to each user terminal) in TTI units. However, the definition of TTI is not limited to this.

[0337] TTI can also be a unit of time for transmitting channel-coded data packets (transmission blocks), code blocks, codewords, etc., and can also be a unit of processing such as scheduling and link adaptation. In addition, when a TTI is given, the actual time interval (e.g., the number of symbols) mapped to the transmission block, code block, codeword, etc. can be shorter than the TTI.

[0338] Furthermore, when a time slot or a mini-time slot is referred to as a TTI, more than one TTI (i.e., more than one time slot or more than one mini-time slot) can also serve as the minimum time unit for scheduling. In addition, the number of time slots (mini-time slots) constituting the minimum time unit of the schedule can also be controlled.

[0339] A Time Interval (TTI) with a duration of 1 ms can 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 can 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 time slot, a sub-time slot, a time slot, etc.

[0340] In addition, long TTIs (e.g., normal TTIs, subframes, etc.) can be replaced with TTIs with a duration of more than 1 ms, and short TTIs (e.g., shortened TTIs, etc.) can be replaced with TTIs with a duration of less than long TTIs but more than 1 ms.

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

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

[0343] In addition, one or more RBs can also be referred to as Physical Resource Blocks (PRBs), Sub-Carrier Groups (SCGs), Resource Element Groups (REGs), PRB pairs, RB pairs, etc.

[0344] Furthermore, a resource block can also consist of one or more resource elements (REs). For example, an RE can also be a radio resource area consisting of a subcarrier and a symbol.

[0345] The Bandwidth Part (BWP) (also referred to as partial bandwidth, etc.) can also represent a subset of consecutive common resource blocks (RBs) used for a certain parameter set in a carrier. Here, common RBs can also be determined by indexing RBs based on a common reference point of the carrier. PRBs can also be defined in a BWP and appended with numbers within that BWP.

[0346] A BWP can also include a UL BWP (BWP used by UL) and a DL BWP (BWP used by DL). For a UE, one or more BWPs can also be set within a single carrier.

[0347] At least one of the configured BWPs can be active, and the UE may not intend to transmit or receive specific signals / channels outside of the active BWPs. Furthermore, terms such as "cell" and "carrier" in this disclosure can be replaced with "BWP".

[0348] Furthermore, the structures described above, such as radio frames, subframes, time slots, mini-time slots, and symbols, are merely illustrative. For example, the number of subframes contained in a radio frame, the number of time slots in each subframe or radio frame, the number of mini-time slots contained within a time slot, the number of symbols and RBs contained in a time slot or mini-time slot, the number of subcarriers contained in an RB, and the number of symbols in a TTI, symbol length, and cyclic prefix (CP) length can be varied in many ways.

[0349] Furthermore, the information, parameters, etc., described in this disclosure can be represented by absolute values, relative values ​​with respect to a specific value, or other corresponding information. For example, wireless resources can also be indicated by a specific index.

[0350] In this disclosure, the names used for parameters, etc., are not limiting names in any respect. Furthermore, the mathematical expressions, etc., using 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 name; therefore, the various names assigned to these various channels and information elements are not limiting names in any respect.

[0351] The information, signals, etc., described in this disclosure can also be represented using any of a variety of different technologies. For example, data, instructions, commands, information, signals, bits, symbols, chips, etc., which may be mentioned throughout the above description, can also be represented by voltage, current, 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 higher level (upper layer) to lower level (lower layer), and from lower layer to higher level. Information, signals, etc., can also be input and output via multiple network nodes.

[0353] Input and output information and signals can be stored in a specific location (such as memory) or managed using management tables. Input and output information and signals can be overwritten, updated, or appended. Output information and signals can also be deleted. Input information and signals can also be sent to other devices.

[0354] The notification of information is not limited to the methods / implementations described in this disclosure, and may also be carried out by other methods. For example, the notification of information in this disclosure may also be implemented through physical layer signaling (e.g., downlink control information (DCI), uplink control information (UCI), etc.), higher 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 combinations thereof.

[0355] In addition, physical layer signaling can also be referred to as Layer 1 / Layer 2 (L1 / L2) control information (L1 / L2 control signals), L1 control information (L1 control signals), etc. Furthermore, RRC signaling can also be referred to as RRC messages, such as RRC connection setup messages, RRC connection reconfiguration messages, etc. Additionally, MAC signaling can also be notified using, for example, the MAC control element (CE).

[0356] Furthermore, notification of specific information (e.g., a notification that “is X”) is not limited to explicit notification, but can also be implicit (e.g., by not providing that specific information, or by providing other information).

[0357] The determination can be made by a value represented by a single bit (0 or 1), by a true or false value (boolean), or by a numerical comparison (e.g., a comparison with a specific value).

[0358] Whether it is called software, firmware, middleware, microcode, hardware description language, or any other name, software should be broadly interpreted as instructions, instruction sets, code, code segments, program code, program, subprogram, software module, application, software application, software package, routine, subroutine, object, executable file, execution thread, process, function, etc.

[0359] Furthermore, software, instructions, and information can also be sent and received via a transmission medium. For example, when software is sent from a website, server, or other remote source using at least one of wired technologies (coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL) etc.) and wireless technologies (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” as used in this disclosure are used interchangeably. “Network” may also refer to devices included in a network (e.g., base stations).

[0361] In this disclosure, the terms "precoding", "precoder", "weight (precoding weight)", "quasi-co-location (QCL)", "transmission configuration indication state (TCI state)", "spatial relation", "spatial domain filter", "transmit power", "phase rotation", "antenna port", "antenna port group", "layer", "number of layers", "rank", "resource", "resource set", "resource group", "beam", "beamwidth", "beam angle", "antenna", "antenna element", and "panel" are used interchangeably.

[0362] In this disclosure, the terms "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. There are also instances where the terms macro cell, small cell, femtocell, and picocell are used to refer to a base station.

[0363] A base station can accommodate one or more (e.g., three) cells. When a base station accommodates multiple cells, its coverage area can be divided into several smaller areas, each of which can provide communication services through a base station subsystem (e.g., a small indoor base station (Remote Radio Head (RRH))). Terms such as "cell" or "sector" refer to a portion or all of the coverage area of ​​at least one of the base station and base station subsystem providing communication services within that coverage area.

[0364] In this disclosure, the terms “Mobile Station (MS)”, “user terminal”, “user equipment (UE)”, and “terminal” are used interchangeably.

[0365] There are also instances where mobile stations are referred to as subscriber stations, mobile units, subscriber units, wireless units, remote units, mobile devices, wireless devices, wireless communication devices, remote devices, mobile subscriber stations, access terminals, mobile terminals, wireless terminals, remote terminals, handsets, user agents, mobile clients, clients, or several other appropriate terms.

[0366] At least one of the base station and the mobile station can also be referred to as a transmitting device, a receiving device, a wireless communication device, etc. Additionally, at least one of the base station and the mobile station can also be a device mounted on a mobile body, the mobile body itself, etc. This mobile body can be a means of transportation (e.g., a vehicle, an airplane, etc.), a mobile body moving in an unmanned manner (e.g., a drone, an autonomous vehicle, etc.), or a robot (humanized or unmanned). Furthermore, at least one of the base station and the mobile station also includes devices that do not necessarily move during communication operations. For example, at least one of the base station and the mobile station can also be an Internet of Things (IoT) device such as a sensor.

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

[0368] Similarly, the user terminal in this disclosure can also be replaced by a base station. In this case, it can also be configured such that the base station 10 has the functions of the user terminal 20 described above.

[0369] In this disclosure, operations are assumed to be performed by the base station, and sometimes, depending on the circumstances, by its upper node. Clearly, in a network comprising one or more network nodes having a base station, various operations for communication with a terminal can be performed by the base station, one or more network nodes other than the base station (e.g., considering a Mobility Management Entity (MME), a Serving-Gateway (S-GW), etc., but not limited to these), or combinations thereof.

[0370] The various methods / implementations described in this disclosure can be used individually or in combination, and can be switched as needed during execution. Furthermore, the processing procedures, sequences, flowcharts, etc., of the various methods / implementations described in this disclosure can be rearranged as long as they do not contradict each other. For example, for the method described in this disclosure, the illustrated order is used to indicate various steps, but the order in which they are indicated is not limited.

[0371] The various methods / implementations described in this disclosure can 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), CDMA2000, Ultra Mobile Broadband (UMB), and IEEE This includes IEEE 802.11 (Wi-Fi, registered trademark), IEEE 802.16 (WiMAX, registered trademark), IEEE 802.20, Ultra-Wideband (UWB), Bluetooth (registered trademark), systems utilizing other suitable wireless communication methods, and next-generation systems derived from them. Furthermore, multiple systems can be combined (e.g., LTE or LTE-A, combinations with 5G, etc.) for application.

[0372] As used in this disclosure, the word "based on" does not mean "based on only" unless otherwise specified. In other words, the word "based on" means both "based on only" and "based on at least".

[0373] Any reference to an element using the terms "first," "second," etc., as used in this disclosure does not comprehensively limit the quantity or order of these elements. These terms may be used in this disclosure as a convenient way to distinguish between two or more elements. Therefore, references to the first and second elements do not imply that only two elements are permitted, or that the first element must take precedence over the second element in some form.

[0374] The term "determining" as used in this disclosure can encompass a wide variety of operations. For example, "determining" can also refer to judging, calculating, computing, processing, deriving, investigating, looking up (e.g., searching in a table, database, or other data structure), and ascertaining.

[0375] In addition, "judgment (decision)" can also refer to receiving (e.g., receiving information), transmitting (e.g., sending information), inputting, outputting, accessing (e.g., accessing data in memory), etc., as situations where "judgment (decision)" is performed.

[0376] Furthermore, "judgment (decision)" can also refer to situations where resolving, selecting, choosing, establishing, or comparing are considered as making a "judgment (decision)". In other words, "judgment (decision)" can also refer to certain actions as situations where a "judgment (decision)" is made.

[0377] In addition, "judgment (decision)" can also be replaced by "assuming", "expecting", "considering", etc.

[0378] The term "maximum transmit power" as used in this disclosure can mean the maximum value of the transmit power, the nominal maximum transmit power, or the rated maximum transmit power.

[0379] As used in this disclosure, the terms "connected," "coupled," or all variations thereof, mean any direct or indirect connection or combination between two or more elements, and can include cases where there is one or more intermediate elements between two mutually "connected" or "coupled" elements. The combination or connection between elements can be physical, logical, or a combination thereof. For example, "connected" can also be replaced with "access."

[0380] In this disclosure, when connecting two elements, it is possible to consider using more than one wire, cable, printed electrical connection, etc., and as several non-limiting and non-inclusive examples, using electromagnetic energy with wavelengths in the wireless frequency domain, microwave region, light (both visible and invisible) region, to "connect" or "combine" them with each other.

[0381] In this disclosure, the term "A is different from B" can also mean "A and B are different from each other". Additionally, the term can also mean "A and B are different from C respectively". Terms such as "separate" and "combined" can also be interpreted as "different".

[0382] In this disclosure, the terms “include,” “including,” and variations thereof, as used, mean inclusiveness, similar to the term “comprising.” Furthermore, the term “or” as used in this disclosure does not mean XOR.

[0383] In this disclosure, for example, in cases where articles are added through translation, such as a, an, and the in English, the disclosure may also include cases where the noun following these articles is in a plural form.

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

Claims

1. A terminal, comprising: The receiving unit receives: first downlink control information containing information related to resources for canceled UL transmission; information related to the priority of uplink shared channels scheduled by the second downlink control information; and information related to the priority of uplink control channels used for HARQ-ACK transmission of semi-persistently transmitted downlink shared channels; and... The control unit performs control to cancel the transmission of the uplink shared channel when, in the case that the uplink control channel for HARQ-ACK transmission of the semi-persistently transmitted downlink shared channel overlaps with the uplink shared channel in the time domain, and the uplink shared channel utilizes resources for canceling the UL transmission, based on the priority of the uplink control channel for HARQ-ACK transmission and the priority of the uplink shared channel, after multiplexing the HARQ-ACK for the uplink shared channel or canceling the uplink control channel for HARQ-ACK transmission. The control unit performs control to prevent a situation where a low-priority uplink shared channel is scheduled due to overlap with the high-priority uplink control channel. If the priority of the uplink control channel becomes low and the priority of the uplink shared channel becomes high, after canceling the uplink control channel, the transmission of the uplink shared channel is canceled. The control unit performs control to cancel the transmission of the uplink shared channel after multiplexing the HARQ-ACK of the uplink control channel to the uplink shared channel, provided that the priorities of the uplink control channel and the uplink shared channel are the same. The semi-persistent scheduling is configured via higher-layer signaling based on bandwidth portion, or BWP.

2. A wireless communication method, which is a wireless communication method for a terminal, comprising: Receive: First downlink control information containing information related to the resources for canceling UL transmission, information related to the priority of the uplink shared channel scheduled by the second downlink control information, and information related to the priority of the uplink control channel for HARQ-ACK transmission of the downlink shared channel that is transmitted semi-persistently. Control is performed to cancel the transmission of the uplink shared channel when the uplink control channel for HARQ-ACK transmission of the semi-persistently transmitted downlink shared channel overlaps with the uplink shared channel in the time domain, and the uplink shared channel utilizes resources for canceling the UL transmission. Based on the priority of the uplink control channel for HARQ-ACK transmission and the priority of the uplink shared channel, after multiplexing the HARQ-ACK of the uplink shared channel or canceling the uplink control channel for HARQ-ACK transmission, the transmission of the uplink shared channel is cancelled. as well as Control is implemented to prevent a situation where a lower-priority uplink shared channel is scheduled due to overlap with the higher-priority uplink control channel. If the priority of the uplink control channel becomes low and the priority of the uplink shared channel becomes high, the transmission of the uplink shared channel is cancelled after the uplink control channel is cancelled. Control is implemented to, when the priorities of the uplink control channel and the uplink shared channel are the same, cancel the transmission of the uplink shared channel after multiplexing the HARQ-ACK of the uplink control channel to the uplink shared channel. The semi-persistent scheduling is configured via higher-layer signaling based on bandwidth portion, or BWP.

3. A base station, comprising: The transmitting unit transmits: first downlink control information containing information related to resources for canceled UL transmission; information related to the priority of the uplink shared channel scheduled by the second downlink control information; and information related to the priority of the uplink control channel for HARQ-ACK transmission of the semi-persistently transmitted downlink shared channel; and... The control unit, when the uplink control channel for HARQ-ACK transmission of the semi-persistently transmitted downlink shared channel overlaps with the uplink shared channel in the time domain, and the uplink shared channel utilizes resources for canceling the UL transmission, indicates, through the first downlink control information, the cancellation of the UL transmission after multiplexing or cancellation processing based on the priority of the uplink control channel for HARQ-ACK transmission and the priority of the uplink shared channel. The control unit instructs the scheduling of the uplink shared channel to avoid overlap with the higher-priority uplink control channel. If the priority of the uplink control channel becomes low and the priority of the uplink shared channel becomes high, the control unit cancels the transmission of the uplink shared channel after cancelling the uplink control channel. The control unit instructs, if the priorities of the uplink control channel and the uplink shared channel are notified to be the same, to cancel the transmission of the uplink shared channel after multiplexing the HARQ-ACK of the uplink control channel to the uplink shared channel. The control unit sets the semi-persistent scheduling by bandwidth portion, i.e., BWP, through higher-layer signaling.

4. A system comprising a terminal and a base station, The terminal has: The receiving unit receives: first downlink control information containing information related to the resources for canceling UL transmission; information related to the priority of the uplink shared channel scheduled by the second downlink control information; and information related to the priority of the uplink control channel for HARQ-ACK transmission of the downlink shared channel that is transmitted semi-persistently. as well as The control unit performs control to cancel the transmission of the uplink shared channel when, in the case that the uplink control channel for HARQ-ACK transmission of the semi-persistently transmitted downlink shared channel overlaps with the uplink shared channel in the time domain, and the uplink shared channel utilizes resources for canceling the UL transmission, based on the priority of the uplink control channel for HARQ-ACK transmission and the priority of the uplink shared channel, after multiplexing the HARQ-ACK for the uplink shared channel or canceling the uplink control channel for HARQ-ACK transmission. The control unit performs control to prevent a situation where a low-priority uplink shared channel is scheduled due to overlap with the high-priority uplink control channel. If the priority of the uplink control channel becomes low and the priority of the uplink shared channel becomes high, after canceling the uplink control channel, the transmission of the uplink shared channel is canceled. The control unit performs control to cancel the transmission of the uplink shared channel after multiplexing the HARQ-ACK of the uplink control channel to the uplink shared channel, provided that the priorities of the uplink control channel and the uplink shared channel are the same. The semi-persistent scheduling is configured via higher-layer signaling based on bandwidth portion (BWP). The base station has: The transmitting unit transmits the first 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, through the first downlink control information, instructs the cancellation of UL transmission after multiplexing or cancellation processing based on the priority of the uplink control channel used for HARQ-ACK transmission and the priority of the uplink shared channel.

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