Terminal, wireless communication system, and wireless communication method

Abstract

This terminal comprises a control unit. When there is an overlap in time between first uplink control information on a first individual physical uplink control channel having first priority and second uplink control information on two or more second individual physical uplink shared channels having second priority, the control unit selects, on the basis of a specific condition, second uplink control information to be multiplexed along with the first uplink control information and then multiplexes the selected second uplink control information along with the first uplink control information.

Description

[Technical Field]

[0001] The present disclosure relates to a terminal, a base station, and a wireless communication method that perform wireless communication, and more particularly to a terminal, a wireless communication system, and a wireless communication method related to multiplexing uplink control information onto an uplink control channel. [Background technology]

[0002] The 3rd Generation Partnership Project (3GPP) has developed specifications for the 5th generation mobile communication system (5G, also known as New Radio (NR) or Next Generation (NG)), and is also developing specifications for the next generation, known as Beyond 5G, 5G Evolution, or 6G.

[0003] 3GPP Release 15 supports multiplexing of two or more uplink channels (a physical uplink control channel (PUCCH) and a physical uplink shared channel (PUSCH)) transmitted in the same slot.

[0004] Furthermore, in Release 17 of 3GPP, it was agreed to support multiplexing UCI (Uplink Control Information) having different priorities onto a PUCCH or a PUSCH (for example, Non-Patent Document 1). [Prior art documents] [Non-patent literature]

[0005] [Non-Patent Document 1] "Enhanced Industrial Internet of Things (IoT) and ultra-reliable and low latency communication", RP-201310, 3GPP TSG RAN Meeting #86e, 3GPP, July 2020 Summary of the Invention

[0006] Against this background, the inventors, after careful consideration, have found the need to define conditions for appropriately multiplexing UCI on a PUCCH when UCI on a PUCCH overlaps in time with UCI on two or more PUSCHs and the priority of UCI on a PUCCH differs from the priority of UCI on two or more PUSCHs.

[0007] Therefore, the present invention has been made in consideration of such circumstances, and aims to provide a terminal, a wireless communication system, and a wireless communication method that can appropriately multiplex UCI on a PUCCH when the priority of UCI on a PUCCH is different from the priority of UCI on two or more PUSCHs.

[0008] One aspect of the present disclosure is summarized as a terminal, comprising: a control unit that, when first uplink control information on a first dedicated physical uplink control channel having a first priority overlaps in time with second uplink control information on two or more second dedicated physical uplink shared channels having second priorities, selects second uplink control information to be multiplexed with the first uplink control information based on a specific condition, and multiplexes the selected second uplink control information with the first uplink control information.

[0009] One aspect of the present disclosure is summarized as a wireless communication system including a terminal and a base station, wherein the terminal includes a control unit that, when first uplink control information on a first dedicated physical uplink control channel having a first priority overlaps in time with second uplink control information on two or more second dedicated physical uplink shared channels having second priorities, selects second uplink control information to be multiplexed with the first uplink control information based on a specific condition, and multiplexes the selected second uplink control information with the first uplink control information.

[0010] One aspect of the present disclosure is summarized as a wireless communication method, comprising: when first uplink control information on a first dedicated physical uplink control channel having a first priority overlaps in time with second uplink control information on two or more second dedicated physical uplink shared channels having second priorities, selecting second uplink control information to be multiplexed with the first uplink control information based on a specific condition; and multiplexing the selected second uplink control information with the first uplink control information. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is a diagram showing the overall schematic configuration of a wireless communication system 10. As shown in FIG. [Figure 2] FIG. 2 is a diagram showing frequency ranges used in the wireless communication system 10. As shown in FIG. [Figure 3] FIG. 3 is a diagram showing an example of the configuration of a radio frame, a subframe, and a slot used in the radio communication system 10. As shown in FIG. [Figure 4] FIG. 4 is a functional block diagram of the UE 200. [Figure 5] Figure 5 is a functional block diagram of gNB100. [Figure 6] FIG. 6 is a diagram for explaining a first application scene. [Figure 7] FIG. 7 is a diagram for explaining a first application scene. [Figure 8] FIG. 8 is a diagram for explaining a first application scene. [Figure 9] FIG. 9 is a diagram for explaining a first application scene. [Figure 10] FIG. 10 is a diagram for explaining a second application scene. [Figure 11] FIG. 11 is a diagram for explaining the second application scene. [Figure 12] FIG. 12 is a diagram for explaining a second application scene. [Figure 13] FIG. 13 is a diagram for explaining a second application scene. [Figure 14] FIG. 14 is a diagram showing an example of the hardware configuration of gNB100 and UE200. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, embodiments will be described with reference to the drawings. Note that the same or similar reference numerals are used to designate the same functions or configurations, and descriptions thereof will be omitted as appropriate.

[0013] [Embodiment] (1) Overall configuration of the wireless communication system 1 is a schematic diagram of an overall configuration of a wireless communication system 10 according to an embodiment. The wireless communication system 10 is a wireless communication system conforming to 5G New Radio (NR), and includes a Next Generation-Radio Access Network 20 (hereinafter, NG-RAN 20) and a terminal 200 (hereinafter, UE 200).

[0014] The wireless communication system 10 may be a wireless communication system conforming to a system called Beyond 5G, 5G Evolution, or 6G.

[0015] The NG-RAN 20 includes a radio base station 100A (hereinafter, gNB100A) and a radio base station 100B (hereinafter, gNB100B). Note that the specific configuration of the radio communication system 10, including the number of gNBs and UEs, is not limited to the example shown in FIG. 1.

[0016] The NG-RAN 20 actually includes a plurality of NG-RAN nodes, specifically, gNBs (or ng-eNBs), and is connected to a 5G-compliant core network (5GC, not shown). The NG-RAN 20 and the 5GC may be simply referred to as a "network."

[0017] The gNB100A and gNB100B are radio base stations conforming to 5G, and perform 5G radio communication with the UE 200. The gNB100A, gNB100B, and UE 200 are capable of supporting Massive MIMO (Multiple-Input Multiple-Output), which generates a more directional beam BM by controlling radio signals transmitted from multiple antenna elements, Carrier Aggregation (CA), which aggregates and uses multiple component carriers (CCs), and Dual Connectivity (DC), which simultaneously communicates on two or more transport blocks between the UE and each of two NG-RAN nodes.

[0018] The wireless communication system 10 also supports a plurality of frequency ranges (FR).

[0019] 2, the wireless communication system 10 supports FR1 and FR2. The frequency bands of each FR are as follows:

[0020] FR1: 410 MHz to 7.125 GHz FR2: 24.25 GHz~52.6 GHz FR1 may use a Sub-Carrier Spacing (SCS) of 15, 30, or 60 kHz and a bandwidth (BW) of 5 to 100 MHz. FR2 is a higher frequency than FR1, and may use an SCS of 60 or 120 kHz (including 240 kHz) and a bandwidth (BW) of 50 to 400 MHz.

[0021] Note that SCS may be interpreted as numerology, which is defined in 3GPP TS38.300 and corresponds to one subcarrier spacing in the frequency domain.

[0022] Furthermore, the wireless communication system 10 also supports frequency bands higher than the FR2 frequency band. Specifically, the wireless communication system 10 supports frequency bands above 52.6 GHz up to 71 GHz or 114.25 GHz. For convenience, such high frequency bands may be referred to as "FR2x."

[0023] To solve the problem of increased phase noise in high frequency bands, when using bands above 52.6 GHz, Cyclic Prefix-Orthogonal Frequency Division Multiplexing (CP-OFDM) / Discrete Fourier Transform - Spread (DFT-S-OFDM) with larger Sub-Carrier Spacing (SCS) may be applied.

[0024] FIG. 3 shows an example of the configuration of a radio frame, a subframe, and a slot used in the radio communication system 10. In FIG.

[0025] As shown in Figure 3, one slot consists of 14 symbols, and the larger (wider) the SCS, the shorter the symbol period (and slot period). The SCS is not limited to the interval (frequency) shown in Figure 3. For example, 480 kHz, 960 kHz, etc. may be used.

[0026] Also, the number of symbols constituting one slot does not necessarily have to be 14 (for example, 28 or 56 symbols). Furthermore, the number of slots per subframe may differ depending on the SCS.

[0027] The time direction (t) shown in Fig. 3 may be called a time domain, a symbol period, or a symbol time, etc. The frequency direction may be called a frequency domain, a resource block, a subcarrier, a bandwidth part (BWP), etc.

[0028] DMRS is a type of reference signal and is prepared for various channels. Here, unless otherwise specified, it may refer to a downlink data channel, specifically, a DMRS for a PDSCH (Physical Downlink Shared Channel). However, a DMRS for an uplink data channel, specifically, a PUSCH (Physical Uplink Shared Channel), may be interpreted as being the same as a DMRS for a PDSCH.

[0029] The DMRS may be used for channel estimation at the device, for example, as part of coherent demodulation at the UE 200. The DMRS may only be present in resource blocks (RBs) used for PDSCH transmission.

[0030] A DMRS may have multiple mapping types. Specifically, a DMRS has mapping type A and mapping type B. In mapping type A, the first DMRS is placed in the second or third symbol of a slot. In mapping type A, the DMRS may be mapped based on the slot boundary, regardless of where in the slot actual data transmission starts. The reason why the first DMRS is placed in the second or third symbol of a slot may be interpreted as being to place the first DMRS after a control resource set (CORESET).

[0031] In mapping type B, the first DMRS may be placed in the first symbol of the data allocation, i.e., the position of the DMRS may be given relative to where the data is placed, rather than relative to the slot boundary.

[0032] Furthermore, DMRS may have multiple types. Specifically, DMRS has Type 1 and Type 2. Type 1 and Type 2 differ in frequency domain mapping and the maximum number of orthogonal reference signals. Type 1 is a single-symbol DMRS that can output up to four orthogonal signals, while Type 2 is a double-symbol DMRS that can output up to eight orthogonal signals.

[0033] (2) Functional block configuration of wireless communication system Next, the functional block configuration of the wireless communication system 10 will be described.

[0034] First, the functional block configuration of the UE 200 will be described.

[0035] Fig. 4 is a functional block diagram of UE 200. As shown in Fig. 4, UE 200 includes radio signal transmitting / receiving unit 210, amplifier unit 220, modem unit 230, control signal / reference signal processing unit 240, encoding / decoding unit 250, data transmitting / receiving unit 260, and control unit 270.

[0036] The radio signal transmitting / receiving unit 210 transmits and receives radio signals conforming to NR. The radio signal transmitting / receiving unit 210 supports Massive MIMO, CA that uses a bundle of multiple CCs, and DC that simultaneously communicates between a UE and two NG-RAN nodes.

[0037] The amplifier unit 220 is configured by a PA (Power Amplifier) / LNA (Low Noise Amplifier), etc. The amplifier unit 220 amplifies the signal output from the modulation / demodulation unit 230 to a predetermined power level. The amplifier unit 220 also amplifies the RF signal output from the radio signal transmission / reception unit 210.

[0038] The modem unit 230 performs data modulation / demodulation, transmission power setting, resource block allocation, etc. for each predetermined communication destination (gNB 100 or another gNB). The modem unit 230 may apply Cyclic Prefix-Orthogonal Frequency Division Multiplexing (CP-OFDM) / Discrete Fourier Transform - Spread (DFT-S-OFDM). Furthermore, DFT-S-OFDM may be used not only for the uplink (UL) but also for the downlink (DL).

[0039] The control signal / reference signal processor 240 performs processing related to various control signals transmitted and received by the UE 200 and processing related to various reference signals transmitted and received by the UE 200 .

[0040] Specifically, the control signal / reference signal processor 240 receives various control signals, for example, control signals of a radio resource control layer (RRC), transmitted via a predetermined control channel from the gNB 100. The control signal / reference signal processor 240 also transmits various control signals to the gNB 100 via a predetermined control channel.

[0041] The control signal / reference signal processor 240 performs processing using reference signals (RS) such as a Demodulation Reference Signal (DMRS) and a Phase Tracking Reference Signal (PTRS).

[0042] DMRS is a reference signal (pilot signal) known between the base station and the terminal for estimating the fading channel used for data demodulation. PTRS is a terminal-specific reference signal for estimating phase noise, which is an issue in high frequency bands.

[0043] In addition to the DMRS and PTRS, the reference signals may include a Channel State Information-Reference Signal (CSI-RS), a Sounding Reference Signal (SRS), and a Positioning Reference Signal (PRS) for position information.

[0044] The channels include control channels and data channels, such as a PDCCH (Physical Downlink Control Channel), a PUCCH (Physical Uplink Control Channel), a RACH (Random Access Channel), Downlink Control Information (DCI) including a Random Access Radio Network Temporary Identifier (RA-RNTI), and a Physical Broadcast Channel (PBCH).

[0045] Furthermore, the data channel includes a PDSCH (Physical Downlink Shared Channel) and a PUSCH (Physical Uplink Shared Channel). Data refers to data transmitted via the data channel. The data channel may be interpreted as a shared channel.

[0046] Here, the control signal and reference signal processor 240 may receive downlink control information (DCI). The DCI includes existing fields for storing DCI Formats, Carrier indicator (CI), BWP indicator, Frequency Domain Resource Allocation (FDRA), Time Domain Resource Allocation (TDRA), Modulation and Coding Scheme (MCS), HARQ Process Number (HPN), New Data Indicator (NDI), Redundancy Version (RV), etc.

[0047] The value stored in the DCI Format field is an information element that specifies the format of the DCI. The value stored in the CI field is an information element that specifies the CC to which the DCI applies. The value stored in the BWP indicator field is an information element that specifies the BWP to which the DCI applies. The BWP that can be specified by the BWP indicator is set by an information element (BandwidthPart-Config) included in the RRC message. The value stored in the FDRA field is an information element that specifies the frequency domain resource to which the DCI applies. The frequency domain resource is identified by the value stored in the FDRA field and an information element (RA Type) included in the RRC message. The value stored in the TDRA field is an information element that specifies the time domain resource to which the DCI applies. The time domain resource is identified by the value stored in the TDRA field and information elements (pdsch-TimeDomainAllocationList, pusch-TimeDomainAllocationList) included in the RRC message. The time domain resource may be identified by the value stored in the TDRA field and a default table. The value stored in the MCS field is an information element that specifies the MCS to which the DCI applies. The MCS is identified by the value stored in the MCS and an MCS table. The MCS table may be specified by an RRC message or may be determined by RNTI scrambling. The value stored in the HPN field is an information element that specifies the HARQ process to which the DCI is applied. The value stored in the NDI field is an information element for specifying whether the data to which the DCI is applied is initial transmission data. The value stored in the RV field is an information element that specifies the redundancy of the data to which the DCI is applied.

[0048] The encoding / decoding unit 250 performs data division / concatenation and channel coding / decoding for each predetermined communication destination (gNB100 or another gNB).

[0049] Specifically, the encoding / decoding unit 250 divides the data output from the data transmitting / receiving unit 260 into pieces of a predetermined size, performs channel coding on the divided data, decodes the data output from the modem unit 230, and concatenates the decoded data.

[0050] The data transmitter / receiver 260 transmits and receives Protocol Data Units (PDUs) and Service Data Units (SDUs). Specifically, the data transmitter / receiver 260 assembles and disassembles PDUs / SDUs in multiple layers (such as a Medium Access Control layer (MAC), a Radio Link Control layer (RLC), and a Packet Data Convergence Protocol layer (PDCP)). The data transmitter / receiver 260 also performs data error correction and retransmission control based on HARQ (Hybrid Automatic Repeat Request).

[0051] The control unit 270 controls each functional block constituting the UE 200. In the embodiment, the control unit 270 constitutes a control unit that, when first uplink control information (hereinafter, first UCI) on a first dedicated physical uplink control channel (hereinafter, first PUCCH) having a first priority overlaps in time with second uplink control information (hereinafter, second UCI) on two or more second dedicated physical uplink shared channels (hereinafter, second PUSCHs) having second priorities, selects a second UCI to be multiplexed with the first UCI based on a specific condition, and multiplexes the selected second UCI with the first UCI.

[0052] Here, the first priority is different from the second priority. Two types of UCI priority, HP (High Priority) and LP (Low Priority), are exemplified. The first priority may be HP and the second priority may be LP, or the first priority may be LP and the second priority may be HP. Three or more types of priority may be defined as UCI priority.

[0053] The control unit 270 controls the control signal / reference signal processing unit 240, which transmits the first UCI multiplexed with the second UCI selected based on a specific condition via the second PUSCH.

[0054] Secondly, we will explain the functional block configuration of gNB100.

[0055] Fig. 5 is a functional block diagram of the gNB 100. As shown in Fig. 5, the gNB 100 includes a receiving unit 110, a transmitting unit 120, and a control unit 130.

[0056] The receiving unit 110 receives various signals from the UE 200. The receiving unit 110 may receive an UL signal via a PUCCH or a PUSCH.

[0057] The transmitter 120 transmits various signals to the UE 200. The transmitter 120 may transmit the DL signal via the PDCCH or the PDSCH.

[0058] The control unit 130 controls the gNB 100. The control unit 130 assumes that the receiving unit 110 receives, via the second PUSCH, the first UCI multiplexed with the second UCI selected based on a specific condition.

[0059] (3) Specific conditions The specific condition of the embodiment will be described below. In the following, the first PUCCH may be used synonymously with the first UCI, and the second PUSCH may be used synonymously with the second UCI. Therefore, the specific condition may be considered as a condition for selecting the second PUSCH, which multiplexes the first PUCCH, from two or more second PUSCHs.

[0060] First, the specific condition may include a first condition that is applied when the priority of the first UCI (first PUCCH) is assumed to be the same as that of the second UCI (second PUSCH). The first condition may include the following condition.

[0061] The first condition may include a condition A for selecting a PUSCH of A (Aperiodic)-CSI that overlaps with resources of the first PUCCH.

[0062] The first condition may include a condition B for selecting a PUSCH having the earliest slot(s) based on the first slot(s) of a PUCCH.

[0063] The first condition may include a condition C that preferentially selects a PUSCH scheduled by a Dynamic Grant (DG) (hereinafter, referred to as a DG PUSCH) over a PUSCH scheduled by a Configured Grant (CG) (hereinafter, referred to as a CG PUSCH).

[0064] The first condition may include a condition D that preferentially selects a PUSCH of a CC serving cell with a smaller CC serving cell index over a PUSCH of a CC serving cell with a larger CC serving cell index.

[0065] The first condition may include a condition E that preferentially selects an earlier transmitted PUSCH over a later transmitted PUSCH.

[0066] Here, the first conditions may be applied in the order of condition A, condition B, condition C, condition D, and condition E.

[0067] Although not particularly limited, if the first PUCCH overlaps in time with both the second PUCCH and the second PUSCH, the above-mentioned first condition may be applied after the first PUCCH and the second PUCCH are multiplexed.

[0068] Second, the specific condition may include a second condition related to at least one of the delay and reliability of the first UCI (first PUCCH). While not particularly limited, the second condition may be a condition defining a second PUSCH onto which the first PUCCH cannot be multiplexed, from the viewpoint of the delay of the first PUCCH, or a condition defining a second PUSCH onto which the first PUCCH can be multiplexed. The second condition may be a condition defining a second PUSCH onto which the first PUCCH cannot be multiplexed, from the viewpoint of the reliability of the first PUCCH, or a condition defining a second PUSCH onto which the first PUCCH can be multiplexed.

[0069] (4) First application scenario A first application scenario of the embodiment will be described below, taking as an example a case where the priority of the first UCI on the first PUCCH is HP and the priority of the second UCI on the second PUSCH is LP.

[0070] Specifically, as shown in Fig. 6, a case will be illustrated in which an HP PUCCH of CC#0 exists as the first PUCCH, and an LP CG PUSCH#1 of CC#0, an LP DG PUSCH#2 of CC#0, an LP DG PUSCH#3 of CC#1, and an LP DG PUSCH#4 of CC#2 exist as the second PUSCH. Under this premise, the following options are possible.

[0071] (4.1) Option 1-1 In option 1-1, UE 200 selects a PUSCH on which to multiplex the HP PUCCH by directly using condition 1. Option 1-1 may be further subdivided into the following options.

[0072] In option 1-1(A), the UE 200 selects the second PUSCH based on the first condition, and then determines whether the selected second PUSCH satisfies the second condition.

[0073] For example, as shown in Fig. 7, UE 200 selects LP DG PUSCH #2 based on the first condition (the above-mentioned conditions B, C, and D), and then determines whether LP DG PUSCH #2 satisfies the second condition. If LP DG PUSCH #2 does not satisfy the second condition, HP PUCCH is not multiplexed onto LP DG PUSCH #2 (see Fig. 7). If LP DG PUSCH #2 satisfies the second condition, HP PUCCH is multiplexed onto LP DG PUSCH #2.

[0074] In option 1-1(B), the UE 200 excludes the second PUSCHs that do not satisfy the second condition, and then selects the second PUSCH from the second PUSCHs that satisfy the second condition based on the first condition.

[0075] For example, as shown in Fig. 8, UE 200 selects LP DG PUSCH #3 based on the first condition (the above-described conditions B, C, and D) after excluding LP DG PUSCH #2 that does not satisfy the second condition. Since the second PUSCH that does not satisfy the second condition has been excluded, the HP PUCCH is multiplexed onto LP DG PUSCH #3.

[0076] (4.2) Option 1-2 In option 1-2, UE 200 selects a PUSCH onto which the HP PUCCH is multiplexed based on the first condition modified in consideration of the delay of the first PUCCH. In other words, condition X regarding the delay of the first PUCCH may be incorporated into the first condition. For example, condition X may be added before condition D. Therefore, the modified first condition may be applied in the order of condition A → condition B → condition C → condition X → condition D → condition E.

[0077] Although not particularly limited, in option 1-2, the second condition may include a condition other than condition X (condition related to delay of the first PUCCH). For example, the second condition may include a condition related to the reliability of the first PUCCH.

[0078] As with Option 1-1, Option 1-2 may be further subdivided into the options shown below.

[0079] In option 1-2(A), the UE 200 selects the second PUSCH based on the first condition, and then determines whether the selected second PUSCH satisfies the second condition.

[0080] For example, as shown in Fig. 9, UE 200 selects LP DG PUSCH #4 based on the first condition (the above-mentioned conditions B, C, and X), and then determines whether LP DG PUSCH #4 satisfies the second condition. If LP DG PUSCH #4 does not satisfy the second condition, HP PUCCH is not multiplexed onto LP DG PUSCH #4. If LP DG PUSCH #4 satisfies the second condition, HP PUCCH is multiplexed onto LP DG PUSCH #4 (see Fig. 9).

[0081] It should be noted that in FIG. 9, condition X is added before condition D, so that LP DG PUSCH#4 is selected as the second PUSCH instead of LP DG PUSCH#2.

[0082] In option 1-2(B), the UE 200 excludes second PUSCHs that do not satisfy the second condition, and then selects a second PUSCH from among the second PUSCHs that satisfy the second condition based on the first condition.

[0083] For example, as shown in Fig. 9, UE 200 selects LP DG PUSCH #4 based on the first condition (the above-described conditions B, C, and X) after excluding LP DG PUSCH #2 that does not satisfy the second condition. Since the second PUSCH that does not satisfy the second condition has been excluded, the HP PUCCH is multiplexed onto LP DG PUSCH #4.

[0084] It should be noted that in FIG. 9, condition X is added before condition D, so that LP DG PUSCH#4 is selected as the second PUSCH instead of LP DG PUSCH#3.

[0085] (5) Second application scene A second application scenario of the embodiment will be described below. In the second application scenario, a case will be considered in which HP UCI and LP UCI are already multiplexed on the first PUCCH. Furthermore, a case will be considered in which a second PUSCH in which the second UCI has a priority of HP and a second PUSCH in which the second UCI has a priority of LP are mixed. Note that the priority of HP+LP may be considered to be a priority different from HP and LP.

[0086] Specifically, as shown in Fig. 10, a case will be illustrated in which a PUCCH (HP+LP UCI) of CC#0 exists as the first PUCCH, and an LP DG PUSCH#1 of CC#0, an HP CG PUSCH#2 of CC#0, an LP DG PUSCH#3 of CC#1, and an HP DG PUSCH#4 of CC#2 exist as the second PUSCH. Under this premise, the following options are possible.

[0087] (5.1) Option 2-1 In option 2-1, the specific condition includes a third condition that specifies the priority of the second UCI on the second PUSCH multiplexed with the first PUCCH. For example, the third condition may be a condition for selecting the second UCI (second PUSCH) of the HP, or may be a condition for selecting the second UCI (second PUSCH) of the LP. The third condition may be added before any of conditions A to E that constitute the above-mentioned first condition. The third condition may be predetermined in the wireless communication system 10, or may be determined by RRC configuration.

[0088] Under such a premise, the UE 200 selects the second PUSCH to multiplex the first PUCCH on the basis of specific conditions including the third condition.

[0089] Here, the third condition is a condition for selecting the HP PUSCH, and the case where the third condition is added before the condition A will be illustrated.

[0090] For example, as shown in Fig. 11, UE 200 selects HP CG PUSCH #2 and HP DG PUSCH #4 based on condition 3. Subsequently, UE 200 selects HP DG PUSCH #4 based on condition B and condition C. PUCCH (HP+LP UCI) is multiplexed onto HP DG PUSCH #4.

[0091] (5.2) Option 2-2 In option 2-2, UE 200 selects the second PUSCH onto which the first PUCCH is multiplexed in the same procedure as in option 1, without distinguishing between the HP PUSCH and the LP PUSCH.

[0092] For example, as shown in Fig. 12, UE 200 selects LP DG PUSCH #1 from all PUSCHs that overlap in time with the first PUCCH in the same procedure as in option 1. PUCCH (HP+LP UCI) is multiplexed into LP DG PUSCH #1.

[0093] In option 2-2, UE 200 may also select a second PUSCH based on the first condition, and then determine whether the selected second PUSCH satisfies the second condition. Alternatively, UE 200 may exclude second PUSCHs that do not satisfy the second condition, and then select a second PUSCH based on the first condition from among second PUSCHs that satisfy the second condition.

[0094] (5.3) Option 2-3 In option 2-3, the specific condition may include a fourth condition under which UCI (HP+LP UCI) on the first PUCCH is multiplexed onto the second PUSCH according to priority. For example, the fourth condition may be a condition under which HP UCI on the first PUCCH is multiplexed onto HP UCI (HP PUSCH) having the same priority as the HP UCI, and LP UCI on the first PUCCH is multiplexed onto LP UCI (LP PUSCH) having the same priority as the HP UCI.

[0095] For example, as shown in FIG. 13 , UE 200 selects HP CG PUSCH #2 and HP DG PUSCH #4 for the HP UCI on the PUCCH (HP+LP UCI) based on the fourth condition. Then, UE 200 selects HP DG PUSCH #4 based on conditions B and C. The HP UCI is multiplexed onto HP DG PUSCH #4. On the other hand, UE 200 selects LP DG PUSCH #1 and LP DG PUSCH #43 for the LP UCI on the PUCCH (HP+LP UCI) based on the fourth condition. Then, UE 200 selects LP DG PUSCH #1 based on conditions B and C. The LP UCI is multiplexed onto LP DG PUSCH #1.

[0096] (6) Actions and Effects In the embodiment, when the first UCI on the first PUCCH overlaps in time with UCIs on two or more second PUSCHs, the UE 200 selects a second UCI to be multiplexed with the first UCI based on a specific condition, and multiplexes the selected second UCI with the first UCI. With this configuration, even when two or more second PUSCHs overlap in time with the first PUCCH, the UE 200 can appropriately multiplex the first PUCCH with the second PUSCH.

[0097] (7) Other embodiments The present invention has been described above in accordance with the embodiments, but it will be obvious to those skilled in the art that the present invention is not limited to these descriptions and that various modifications and improvements are possible.

[0098] In the above disclosure, the first PUCCH is a high-performance PUCCH and the second PUSCH is a low-performance PUSCH. However, the above disclosure is not limited to this. The first PUCCH may be a low-performance PUCCH and the second PUSCH may be a high-performance PUSCH.

[0099] Although not specifically mentioned in the above disclosure, the same or different specific criteria may be applied to the relationship between the HP PUCCH and the LP PUCCH, the relationship between the HP PUCCH and the LP PUSCH, the relationship between the LP PUCCH and the HP PUCCH, and the relationship between the LP PUCCH and the HP PUCCH.

[0100] Although not specifically mentioned in the above disclosure, which of the above-mentioned options is to be applied may be set by a higher layer parameter, may be reported by capability information (UE Capability) of the UE 200, or may be predetermined in the wireless communication system 10. Furthermore, which of the above-mentioned options is to be applied may be determined by the higher layer parameter and the UE Capability.

[0101] Here, the UE Capability may include the following information elements:

[0102] First, the UE Capability may include an information element that defines whether the UE supports the function of multiplexing the first PUSCH onto the second PUSCH when the first PUCCH overlaps with two or more second PUSCHs in time.

[0103] Second, the UE Capability may include an information element that defines whether the UE supports the function of multiplexing the first PUSCH onto the second PUSCH when the UCI on the first PUCCH includes the HP UCI and the LP UCI.

[0104] Third, the UE Capability may include information indicating whether or not the specific condition is met when the first PUCCH overlaps in time with two or more second PUSCHs and the first PUSCH is multiplexed onto the second PUSCH.

[0105] Fourth, the UE capability may include information indicating whether a third condition is met as a specific condition when the first PUSCH overlaps with two or more second PUSCHs in time and the first PUSCH is multiplexed with the second PUSCH. For example, the UE capability may include an information element indicating whether multiplexing of the HP UCI and LP UCI on the PUCCH onto the HP PUSCH is supported. The UE capability may include an information element indicating whether multiplexing of the HP UCI and LP UCI on the PUCCH onto the LP PUSCH is supported.

[0106] Fifth, the UE capability may include information indicating whether a fourth condition is met as a specific condition when the first PUSCH overlaps with two or more second PUSCHs in time and the first PUSCH is multiplexed with the second PUSCH. For example, the UE capability may include an information element indicating whether multiplexing of HP UCI and LP UCI on the PUCCH with PUSCHs of different priorities is supported.

[0107] The block diagrams (FIGS. 4 and 5) used in the description of the above-described embodiments show functional blocks. These functional blocks (components) are realized by any combination of at least one of hardware and software. Furthermore, the method of realizing each functional block is not particularly limited. That is, each functional block may be realized using a single device that is physically or logically coupled, or may be realized using two or more physically or logically separated devices that are connected directly or indirectly (for example, by wire, wirelessly, etc.) and these multiple devices. The functional block may be realized by combining the single device or the multiple devices with software.

[0108] Functions include, but are not limited to, judgment, determination, judgment, calculation, computation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, resolution, selection, election, establishment, comparison, assumption, expectation, regard, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, and assignment. For example, a functional block (component) that performs transmission is called a transmitting unit or transmitter. As mentioned above, there are no particular limitations on how each is implemented.

[0109] Furthermore, the above-described gNB100 and UE200 (the device) may function as a computer that performs processing of the wireless communication method of the present disclosure. Fig. 14 is a diagram showing an example of the hardware configuration of the device. As shown in Fig. 14, the device may be configured as a computer device including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, etc.

[0110] In the following description, the term "apparatus" can be interpreted as a circuit, a device, a unit, etc. The hardware configuration of the apparatus may be configured to include one or more of the apparatuses shown in the drawings, or may be configured to exclude some of the apparatuses.

[0111] Each functional block of the device (see FIG. 4) is realized by any hardware element of the computer device or a combination of the hardware elements.

[0112] In addition, each function of the device is realized by loading specified software (programs) onto hardware such as processor 1001 and memory 1002, causing processor 1001 to perform calculations, control communication via communication device 1004, and control at least one of reading and writing data in memory 1002 and storage 1003.

[0113] The processor 1001 controls the entire computer by running, for example, an operating system, and may be configured as a central processing unit (CPU) including an interface with peripheral devices, a control unit, an arithmetic unit, a register, and the like.

[0114] The processor 1001 also reads programs (program codes), software modules, data, etc. from at least one of the storage 1003 and the communication device 1004 into the memory 1002, and executes various processes in accordance with these. The programs used are those that cause a computer to execute at least some of the operations described in the above-mentioned embodiments. Furthermore, the various processes described above may be executed by one processor 1001, or may be executed simultaneously or sequentially by two or more processors 1001. The processor 1001 may be implemented by one or more chips. The programs may be transmitted from a network via a telecommunications line.

[0115] The memory 1002 is a computer-readable recording medium and may be configured by, for example, at least one of a read-only memory (ROM), an erasable programmable ROM (EPROM), an electrically erasable programmable ROM (EEPROM), a random access memory (RAM), etc. The memory 1002 may also be called a register, a cache, a main memory (primary storage device), etc. The memory 1002 can store a program (program code), a software module, etc., that can execute a method according to an embodiment of the present disclosure.

[0116] Storage 1003 is a computer-readable recording medium, and may be, for example, at least one of an optical disk such as a Compact Disc ROM (CD-ROM), a hard disk drive, a flexible disk, a magneto-optical disk (e.g., a compact disk, a digital versatile disk, a Blu-ray disc), a smart card, a flash memory (e.g., a card, a stick, a key drive), a floppy disk, a magnetic strip, etc. Storage 1003 may also be referred to as an auxiliary storage device. The above-mentioned recording medium may be, for example, a database, a server, or other appropriate medium including at least one of memory 1002 and storage 1003.

[0117] The communication device 1004 is hardware (transmission / reception device) for communicating between computers via at least one of a wired network and a wireless network, and is also called, for example, a network device, a network controller, a network card, or a communication module.

[0118] The communication device 1004 may be configured to include a high-frequency switch, a duplexer, a filter, a frequency synthesizer, etc. to realize, for example, at least one of Frequency Division Duplex (FDD) and Time Division Duplex (TDD).

[0119] The input device 1005 is an input device (for example, a keyboard, a mouse, a microphone, a switch, a button, a sensor, etc.) that receives input from the outside. The output device 1006 is an output device (for example, a display, a speaker, an LED lamp, etc.) that outputs to the outside. The input device 1005 and the output device 1006 may be integrated into one device (for example, a touch panel).

[0120] Furthermore, each device such as the processor 1001 and the memory 1002 is connected to a bus 1007 for communicating information. The bus 1007 may be configured using a single bus, or may be configured using different buses between each device.

[0121] Furthermore, the device may 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 some or all of the functional blocks may be realized by the hardware. For example, the processor 1001 may be implemented using at least one of these pieces of hardware.

[0122] Furthermore, the notification of information is not limited to the aspects / embodiments described in the present disclosure, and may be performed using other methods. For example, the notification of information may be performed by physical layer signaling (e.g., Downlink Control Information (DCI), Uplink Control Information (UCI)), higher layer signaling (e.g., RRC signaling, Medium Access Control (MAC) signaling, broadcast information (Master Information Block (MIB), System Information Block (SIB))), other signals, or a combination thereof. Furthermore, the RRC signaling may be referred to as an RRC message, and may be, for example, an RRC Connection Setup message, an RRC Connection Reconfiguration message, or the like.

[0123] Each aspect / embodiment described in the present disclosure may be applied to at least one of a system using Long Term Evolution (LTE), LTE-Advanced (LTE-A), SUPER 3G, IMT-Advanced, a 4th generation mobile communication system (4G), a 5th generation mobile communication system (5G), Future Radio Access (FRA), New Radio (NR), W-CDMA (registered trademark), GSM (registered trademark), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), or other suitable system, and a next-generation system extended based on these. Furthermore, a combination of multiple systems (e.g., a combination of at least one of LTE and LTE-A and 5G) may also be applied.

[0124] The order of the procedures, sequences, flowcharts, etc. of each aspect / embodiment described in this disclosure may be changed unless it is consistent. For example, the methods described in this disclosure present elements of various steps using an example order, and are not limited to the particular order presented.

[0125] In the present disclosure, a specific operation described as being performed by a base station may be performed by its upper node in some cases. In a network consisting of one or more network nodes having a base station, it is clear that various operations performed for communication with a terminal may be performed by at least one of the base station and another network node other than the base station (for example, but not limited to, an MME or an S-GW). Although the above example illustrates a case where there is one other network node other than the base station, a combination of multiple other network nodes (for example, an MME and an S-GW) may also be used.

[0126] Information and signals (information, etc.) may be output from a higher layer (or a lower layer) to a lower layer (or a higher layer), and may be input and output via multiple network nodes.

[0127] The input and output information may be stored in a specific location (for example, memory) or may be managed using a management table. The input and output information may be overwritten, updated, or added. The output information may be deleted. The input information may be sent to another device.

[0128] The determination may be made based on a value represented by one bit (0 or 1), a Boolean value (true or false), or a numerical comparison (e.g., comparison with a predetermined value).

[0129] Each aspect / embodiment described in this disclosure may be used alone, in combination, or switched depending on the implementation. Furthermore, notification of predetermined information (e.g., notification that "X is true") is not limited to being done explicitly, but may be done implicitly (e.g., by not notifying the predetermined information).

[0130] Software shall be construed broadly to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures, functions, etc., whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise.

[0131] Software, instructions, information, etc. may also be transmitted or received over a transmission medium. For example, if software is transmitted from a website, server, or other remote source using wired technologies (such as coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL)), and / or wireless technologies (such as infrared, microwave), then these wired and / or wireless technologies are included within the definition of transmission media.

[0132] The information, signals, etc. described in this disclosure may be represented using any of a variety of different technologies. For example, data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be referred to throughout the above description may be represented by voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, optical fields or photons, or any combination thereof.

[0133] Note that terms explained in this disclosure and terms necessary for understanding this disclosure may be replaced with terms having the same or similar meanings. For example, at least one of a channel and a symbol may be a signal (signaling). Furthermore, a signal may be a message. Furthermore, a component carrier (CC) may be called a carrier frequency, a cell, a frequency carrier, etc.

[0134] As used in this disclosure, the terms "system" and "network" are used interchangeably.

[0135] Furthermore, the information, parameters, etc. described in the present disclosure may be expressed using absolute values, may be expressed using relative values from a predetermined value, or may be expressed using other corresponding information. For example, a radio resource may be indicated by an index.

[0136] The names used for the above-described parameters are not intended to be limiting in any way. Furthermore, the mathematical expressions using these parameters may differ from those explicitly disclosed in this disclosure. The various channels (e.g., PUCCH, PDCCH, etc.) and information elements may be identified by any suitable names, and therefore the various names assigned to these various channels and information elements are not intended to be limiting in any way.

[0137] In this disclosure, terms such as "base station (BS)," "radio base station," "fixed station," "NodeB," "eNodeB (eNB)," "gNodeB (gNB)," "access point," "transmission point," "reception point," "transmission / reception point," "cell," "sector," "cell group," "carrier," and "component carrier" may be used interchangeably. Base stations may also be referred to by terms such as macrocell, small cell, femtocell, and picocell.

[0138] A base station can accommodate one or more (e.g., three) cells (also called sectors). When a base station accommodates multiple cells, the overall coverage area of the base station can be divided into multiple smaller areas, and each smaller area can be provided with communication service by a base station subsystem (e.g., a small indoor base station (Remote Radio Head: RRH)).

[0139] The terms "cell" or "sector" refer to part or all of the coverage area of a base station and / or base station subsystem that provides communication services within that coverage area.

[0140] In this disclosure, the terms "Mobile Station (MS)," "user terminal," "User Equipment (UE)," "terminal," etc. may be used interchangeably.

[0141] A mobile station may also be referred to by those skilled in the art as a subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable terminology.

[0142] At least one of the base station and the mobile station may be called a transmitting device, a receiving device, a communication device, etc. At least one of the base station and the mobile station may be a device mounted on a mobile body, the mobile body itself, etc. The mobile body may be a vehicle (e.g., a car, an airplane, etc.), an unmanned mobile body (e.g., a drone, an autonomous vehicle, etc.), or a robot (manned or unmanned). At least one of the base station and the mobile station may also include devices that do not necessarily move during communication operations. For example, at least one of the base station and the mobile station may be an Internet of Things (IoT) device such as a sensor.

[0143] Furthermore, a base station in the present disclosure may be read as a mobile station (user terminal, the same applies hereinafter). For example, the aspects / embodiments of the present disclosure may be applied to a configuration in which communication between a base station and a mobile station is replaced with communication between multiple mobile stations (which may be called, for example, Device-to-Device (D2D) or Vehicle-to-Everything (V2X)). In this case, the mobile station may be configured to have the functions of a base station. Furthermore, terms such as "uplink" and "downlink" may be read as terms corresponding to communication between terminals (for example, "side"). For example, terms such as uplink channel and downlink channel may be read as side channel.

[0144] Similarly, a mobile station in the present disclosure may be interpreted as a base station, in which case the base station may have the functions of a mobile station.

[0145] A radio frame may be composed of one or more frames in the time domain, each of which may be called a subframe.

[0146] A subframe may further be composed of one or more slots in the time domain, and may have a fixed time length (e.g., 1 ms) that is independent of numerology.

[0147] Numerology may be a communication parameter applied to at least one of transmission and reception of a signal or channel, such as subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), number of symbols per TTI, radio frame structure, specific filtering operations performed by a transceiver in the frequency domain, and specific windowing operations performed by a transceiver in the time domain.

[0148] A slot may consist of one or more symbols in the time domain (such as an Orthogonal Frequency Division Multiplexing (OFDM) symbol or a Single Carrier Frequency Division Multiple Access (SC-FDMA) symbol). A slot may be a time unit based on numerology.

[0149] A slot may include multiple minislots. Each minislot may consist of one or multiple symbols in the time domain. A minislot may also be called a subslot. A minislot may consist of fewer symbols than a slot. A PDSCH (or PUSCH) transmitted in a time unit larger than a minislot may be called PDSCH (or PUSCH) mapping type A. A PDSCH (or PUSCH) transmitted using a minislot may be called PDSCH (or PUSCH) mapping type B.

[0150] The radio frame, subframe, slot, minislot, and symbol all represent time units for transmitting signals, and may be referred to by other names corresponding to the radio frame, subframe, slot, minislot, and symbol.

[0151] For example, one subframe may be called a transmission time interval (TTI), multiple consecutive subframes may be called a TTI, or one slot or one minislot may be called a TTI. That is, at least one of the subframe and the TTI may be a subframe (1 ms) in existing LTE, a period shorter than 1 ms (e.g., 1-13 symbols), or a period longer than 1 ms. Note that the unit representing the TTI may be called a slot, minislot, etc., instead of a subframe.

[0152] Here, TTI refers to, for example, the smallest time unit for scheduling in wireless communication. For example, in an LTE system, a base station performs scheduling to allocate radio resources (such as frequency bandwidth and transmission power that can be used by each user terminal) to each user terminal in TTI units. However, the definition of TTI is not limited to this.

[0153] The TTI may be a transmission time unit for a channel-encoded data packet (transport block), a code block, a code word, etc., or may be a processing unit for scheduling, link adaptation, etc. When a TTI is given, the time interval (e.g., the number of symbols) to which a transport block, a code block, a code word, etc. is actually mapped may be shorter than the TTI.

[0154] When one slot or one minislot is called a TTI, one or more TTIs (i.e., one or more slots or one or more minislots) may be the minimum time unit for scheduling. Also, the number of slots (minislots) constituting the minimum time unit for scheduling may be controlled.

[0155] A TTI having a time length of 1 ms may be called a regular TTI (TTI in LTE Rel. 8-12), normal TTI, long TTI, regular subframe, normal subframe, long subframe, slot, etc. A TTI shorter than a regular TTI may be called a shortened TTI, short TTI, partial or fractional TTI, shortened subframe, short subframe, minislot, subslot, slot, etc.

[0156] In addition, a long TTI (e.g., a normal TTI, a subframe, etc.) may be interpreted as a TTI having a time length of more than 1 ms, and a short TTI (e.g., a shortened TTI, etc.) may be interpreted as a TTI having a TTI length shorter than the TTI length of a long TTI and equal to or greater than 1 ms.

[0157] A resource block (RB) is a resource allocation unit in the time domain and frequency domain, and may include one or more consecutive subcarriers in the frequency domain. The number of subcarriers included in an RB may be the same regardless of numerology, for example, 12. The number of subcarriers included in an RB may also be determined based on numerology.

[0158] The time domain of an RB may include one or more symbols and may have a length of one slot, one minislot, one subframe, or one TTI. One TTI, one subframe, etc. may each be composed of one or more resource blocks.

[0159] Note that one or more RBs may also be called a physical resource block (PRB), a sub-carrier group (SCG), a resource element group (REG), a PRB pair, an RB pair, or the like.

[0160] Furthermore, a resource block may be composed of one or more resource elements (REs). For example, one RE may be a radio resource region of one subcarrier and one symbol.

[0161] A Bandwidth Part (BWP) (which may also be referred to as a fractional bandwidth) may represent a subset of contiguous common resource blocks (RBs) for a given numerology on a given carrier, where the common RBs may be identified by their index relative to a common reference point of the carrier. PRBs may be defined in a given BWP and numbered within that BWP.

[0162] The BWP may include a BWP for UL (UL BWP) and a BWP for DL (DL BWP). One or more BWPs may be configured for a UE within one carrier.

[0163] At least one of the configured BWPs may be active, and the UE may not expect to transmit or receive a given signal / channel outside the active BWP. Note that the terms "cell," "carrier," etc. in this disclosure may be read as "BWP."

[0164] The above-described structures of radio frames, subframes, slots, minislots, symbols, etc. are merely examples. For example, the number of subframes included in a radio frame, the number of slots per subframe or radio frame, the number of minislots included in a slot, the number of symbols and RBs included in a slot or minislot, the number of subcarriers included in an RB, the number of symbols in a TTI, the symbol length, the cyclic prefix (CP) length, etc. may be changed in various ways.

[0165] The terms "connected," "coupled," or any variation thereof, refer to any direct or indirect connection or coupling between two or more elements, and may include the presence of one or more intermediate elements between two elements that are "connected" or "coupled" to each other. The coupling or connection between elements may be physical, logical, or a combination thereof. For example, "connected" may be read as "access." As used in this disclosure, two elements may be considered to be "connected" or "coupled" to each other using one or more wires, cables, and / or printed electrical connections, as well as electromagnetic energy having wavelengths in the radio frequency range, microwave range, and optical (both visible and invisible) range, as some non-limiting and non-exhaustive examples.

[0166] The reference signal may also be abbreviated as Reference Signal (RS), and may also be called a pilot depending on the applicable standard.

[0167] As used in this disclosure, the phrase "based on" does not mean "based only on," unless expressly stated otherwise. In other words, the phrase "based on" means both "based only on" and "based at least on."

[0168] The "means" in the configuration of each of the above devices may be replaced with "part," "circuit," "device," etc.

[0169] As used in this disclosure, any reference to an element using a designation such as "first," "second," etc. does not generally limit the quantity or order of those elements. These designations may be used in this disclosure as a convenient method of distinguishing between two or more elements. Thus, a reference to a first and a second element does not imply that only two elements may be employed therein or that the first element must precede the second element in some way.

[0170] When used in this disclosure, the terms "include," "including," and variations thereof are intended to be inclusive, similar to the term "comprising." Furthermore, when used in this disclosure, the term "or" is not intended to be an exclusive or.

[0171] In this disclosure, where articles are added by translation, such as a, an, and the in English, the disclosure may include that the nouns following these articles are in the plural form.

[0172] As used in this disclosure, the terms "determining" and "determining" may encompass a wide variety of actions. "Determining" and "determining" may include, for example, judging, calculating, computing, processing, deriving, investigating, looking up, searching, inquiring (e.g., searching in a table, database, or other data structure), ascertaining, and the like. "Determining" and "determining" may also include receiving (e.g., receiving information), transmitting (e.g., sending information), input, output, accessing (e.g., accessing data in memory), and the like. Furthermore, "judgment" and "decision" can include regarding resolving, selecting, choosing, establishing, comparing, etc. as having been "judged" or "decided." In other words, "judgment" and "decision" can include regarding some action as having been "judged" or "decided." Furthermore, "judgment (decision)" can be interpreted as "assuming," "expecting," "considering," etc.

[0173] In the present disclosure, the term "A and B are different" may mean "A and B are different from each other." The term may also mean "A and B are each different from C." Terms such as "separate" and "coupled" may also be interpreted in the same way as "different."

[0174] Although the present disclosure has been described in detail above, it is clear to those skilled in the art that the present disclosure is not limited to the embodiments described herein. The present disclosure can be implemented in modified and altered forms without departing from the spirit and scope of the present disclosure as defined by the claims. Therefore, the description of the present disclosure is intended to be illustrative and does not have any limiting meaning on the present disclosure. [Explanation of symbols]

[0175] 10. Wireless communication systems 20 NG-RAN 100 gNB 110 Receiving unit 120 Transmitter 130 Control Unit 200 UE 210 Radio signal transmitter / receiver 220 Amplifier section 230 Modulation and Demodulation Unit 240 Control signal / reference signal processing section 250 Encoding / Decoding Unit 260 Data transmission and reception unit 270 Control Unit 1001 processor 1002 memory 1003 Storage 1004 Communication equipment 1005 Input Device 1006 Output Device 1007 Bus

Claims

1. a controller configured to multiplex a physical uplink control channel, which is used for transmitting uplink control information and has a first priority, onto a physical uplink shared channel selected from two or more physical uplink shared channels having second priorities, when the physical uplink control channel temporally overlaps with the two or more physical uplink shared channels having second priorities; a transmitter configured to transmit the uplink control information via the selected physical uplink shared channel; Equipped with When the two or more physical uplink shared channels include a physical uplink shared channel scheduled by a configured grant and a physical uplink shared channel scheduled by a dynamic grant, the control unit multiplexes the uplink control information onto the physical uplink shared channel scheduled by the dynamic grant.

2. 2. The terminal according to claim 1, wherein, when the two or more physical uplink shared channels do not include a physical uplink shared channel scheduled by a configured grant and a physical uplink shared channel scheduled by a dynamic grant, and include a physical uplink shared channel of a serving cell with a larger serving cell index and a physical uplink shared channel of a serving cell with a smaller serving cell index, the controller multiplexes the uplink control information onto the physical uplink shared channel of the serving cell with the smaller serving cell index.

3. 2. The terminal according to claim 1, wherein, when the two or more physical uplink shared channels do not include a physical uplink shared channel scheduled by a configured grant and a physical uplink shared channel scheduled by a dynamic grant and include a physical uplink shared channel with a slow transmission rate and a physical uplink shared channel with an early transmission rate in the same slot, the controller multiplexes the uplink control information onto the physical uplink shared channel with an early transmission rate.

4. a control unit that, when a physical uplink control channel that is used for transmitting uplink control information and has a first priority overlaps in time with two or more physical uplink shared channels that have second priorities, assumes that the uplink control information is multiplexed onto a physical uplink shared channel selected from the two or more physical uplink shared channels; a receiving unit that receives the uplink control information via the selected physical uplink shared channel; Equipped with a base station, wherein, when the two or more physical uplink shared channels include a physical uplink shared channel scheduled by a configured grant and a physical uplink shared channel scheduled by a dynamic grant, the control unit assumes that the uplink control information is multiplexed onto the physical uplink shared channel scheduled by the dynamic grant.

5. A terminal and a base station are provided, The terminal a controller configured to multiplex a physical uplink control channel, which is used for transmitting uplink control information and has a first priority, onto a physical uplink shared channel selected from two or more physical uplink shared channels having second priorities, when the physical uplink control channel temporally overlaps with the two or more physical uplink shared channels having second priorities; a transmitter configured to transmit the uplink control information to the base station via the selected physical uplink shared channel; Equipped with and when the two or more physical uplink shared channels include a physical uplink shared channel scheduled by a configured grant and a physical uplink shared channel scheduled by a dynamic grant, the control unit multiplexes the uplink control information onto the physical uplink shared channel scheduled by the dynamic grant.

6. a step of multiplexing, by a terminal, a physical uplink control channel selected from two or more physical uplink shared channels, the physical uplink control channel being used for transmitting uplink control information and having a first priority, when the physical uplink control channel overlaps in time with two or more physical uplink shared channels having a second priority; transmitting, by the terminal, the uplink control information via the selected physical uplink shared channel; Equipped with When the two or more physical uplink shared channels include a physical uplink shared channel scheduled by a configured grant and a physical uplink shared channel scheduled by a dynamic grant, in the multiplexing step, the terminal multiplexes the uplink control information onto the physical uplink shared channel scheduled by the dynamic grant.

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