WO2023073845A1

WO2023073845A1 - Terminal and communication control method

Info

Publication number: WO2023073845A1
Application number: PCT/JP2021/039719
Authority: WO
Inventors: 優元 ▲高▼橋; 聡永田; チーピンピ
Original assignee: 株式会社Ｎｔｔドコモ
Priority date: 2021-10-27
Filing date: 2021-10-27
Publication date: 2023-05-04

Abstract

The terminal according to one embodiment of the present disclosure comprises: a reception unit for receiving information relating to first and second degrees of priority, which correspond to uplink control channels and which differ from one another, and a first resource block count set in the uplink control channels; and a control unit that, if the first resource block count is insufficient for the payload size of first uplink control information having the first degree of priority and the payload size of second uplink control information having the second degree of priority, maps the first uplink control information and determines a second resource block count pertaining to resource blocks in the uplink control channels.

Description

Terminal and communication control method

The present disclosure relates to terminals and communication control methods.

The 3rd Generation Partnership Project (3GPP) has specified the 5th generation mobile communication system (also called 5G, New Radio (NR) or Next Generation (NG)), and the next generation specification called Beyond 5G, 5G Evolution or 6G We are also proceeding with

In Release 15 of 3GPP, multiplexing of two or more uplink channels (Physical Uplink Control Channel (PUCCH) and Physical Uplink Shared Channel (PUSCH)) transmitted in the same slot is supported.

Also, in Release 17 of 3GPP, it was agreed to support multiplexing of Uplink Control Information (UCI) with different priorities onto PUCCH (for example, Non-Patent Document 1).

However, if the number of PUCCH (physical) resource blocks (PRBs) is insufficient for the payload size of two or more UCIs with different priorities, then all of these UCIs cannot be multiplexed onto the PUCCH. is also assumed.

One aspect of the present disclosure provides a terminal and a communication control method that can appropriately determine the number of resource blocks used for transmitting at least one piece of uplink control information having different priorities.

A terminal according to an aspect of the present disclosure receives information on different first priorities and second priorities corresponding to uplink control channels, and the number of first resource blocks configured for the uplink control channels. and the number of the first resource blocks is insufficient for the payload size of the first uplink control information having the first priority and the payload size of the second uplink control information having the second priority. and a control unit that determines the number of second resource blocks of the resource blocks of the uplink control channel, to which the first uplink control information is mapped, if the first uplink control information is mapped.

A communication control method according to an aspect of the present disclosure is such that a terminal uses information on different first and second priorities corresponding to an uplink control channel, and a first resource block in which the uplink control channel is set. and the number of resource blocks for the payload size of the first uplink control information having the first priority and the payload size of the second uplink control information having the second priority. If insufficient, determine a second number of resource blocks of the uplink control channel to which the first uplink control information is mapped.

1 is a diagram illustrating an example of a radio communication system according to an embodiment; FIG. 1 is a diagram showing an example of frequency ranges used in a wireless communication system; FIG. 1 is a diagram showing a configuration example of radio frames, subframes and slots used in a radio communication system; FIG. FIG. 4 is a block diagram showing an example of a configuration of a gNB according to an embodiment; FIG. 2 is a block diagram showing an example of the configuration of a UE according to an embodiment; FIG. FIG. 4 is a diagram showing an example of a PRB (number) determination procedure in Release 15 of 3GPP; FIG. 10 is a diagram showing another example of the PRB (number) determination procedure in Release 15 of 3GPP; It is a figure which shows an example of the operation|movement flow which concerns on embodiment. FIG. 10 illustrates another example of the operational flow according to the embodiment; FIG. 4 is a diagram illustrating an example of hardware configurations of a gNB and a UE according to an embodiment; It is a figure showing an example of composition of vehicles in an embodiment.

An embodiment according to one aspect of the present disclosure will be described below with reference to the drawings.

(Embodiment)
(1) Overall Schematic Configuration of Radio Communication System FIG. 1 is a diagram showing an example of a radio communication system 10 according to an embodiment. The radio communication system 10 is a radio communication system according 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).

Note that the wireless communication system 10 may be a wireless communication system that conforms to a scheme called Beyond 5G, 5G Evolution, or 6G.

NG-RAN 20 includes a base station 100A (hereinafter gNB100A) and a base station 100B (hereinafter gNB100B). Note that gNB100A, gNB100B, etc. are collectively referred to as gNB100 when there is no need to distinguish between them. Also, the number of gNBs and UEs is not limited to the example shown in FIG.

NG-RAN 20 actually includes multiple NG-RAN nodes, specifically gNBs (or ng-eNBs), and is connected to a 5G-compliant core network (5GC, not shown). Note that NG-RAN 20 and 5GC may simply be referred to as a "network".

gNB100A and gNB100B are 5G-compliant base stations and perform 5G-compliant wireless communication with UE200. The gNB100A, gNB100B and UE200 generate a more highly directional beam BM by controlling radio signals transmitted from multiple antenna elements Massive Multiple-Input Multiple-Output (MIMO), multiple component carriers (CC ), and dual connectivity (DC) that performs communication between the UE and each of the two NG-RAN nodes. DC may include MR-DC (Multi-RAT Dual Connectivity) using MCG (Master Cell Group) and SCG (Secondary Cell Group). MR-DC includes EN-DC (E-UTRA-NR Dual Connectivity), NE-DC (NR-EUTRA Dual Connectivity) and NR-DC (NR-NR Dual Connectivity). Here, CCs (cells) used in CA may be considered to constitute the same cell group. MCG and SCG may be considered to constitute the same cell group.

Also, the wireless communication system 10 supports multiple frequency ranges (FR).

FIG. 2 is a diagram showing an example of frequency ranges used in the wireless communication system 10. As shown in FIG. As shown in FIG. 2, the wireless communication system 10 supports FR1 and FR2. For example, the frequency band of each FR is as follows.
・FR1: 410MHz to 7.125GHz
・FR2: 24.25 GHz to 52.6 GHz

In FR1, Sub-Carrier Spacing (SCS) of 15kHz, 30kHz or 60kHz may be used, and a bandwidth (BW) of 5-100MHz may be used. FR2 is higher frequency than FR1 and may use an SCS of 60 kHz or 120 kHz (240 kHz may be included) and a bandwidth (BW) of 50-400 MHz.

It should be noted that SCS may be interpreted as numerology. numerology is defined in 3GPP TS38.300 and corresponds to one subcarrier spacing in the frequency domain.

Furthermore, the wireless communication system 10 may support a higher frequency band than the FR2 frequency band. Specifically, the wireless communication system 10 may support frequency bands above 52.6 GHz and up to 114.25 GHz. Such high frequency bands may be conveniently referred to as "FR2x". Cyclic Prefix - Orthogonal Frequency Division Multiplexing (CP-OFDM)/Discrete Fourier Transform - Spread - Orthogonal Frequency Division Multiplexing (DFT-S-OFDM) with larger SCS may be applied when using bands above 52.6 GHz .

FIG. 3 is a diagram showing a configuration example of radio frames, subframes and slots used in the radio communication system 10. FIG. As shown in FIG. 3, one slot consists of 14 symbols, and the larger (wider) the SCS, the shorter the symbol period (and the slot period). The SCS is not limited to the intervals (frequencies) shown in FIG. For example, 480 kHz, 960 kHz, etc. may be used as the SCS.

Also, the number of symbols constituting one slot does not necessarily have to be 14 symbols (for example, 28 or 56 symbols). Furthermore, the number of slots per subframe may vary between SCSs.

Note that the time direction (t) shown in FIG. 3 may be called the time domain, symbol period, symbol time, or the like. Also, the frequency direction may be called a frequency domain, resource block, subcarrier, bandwidth part (BWP), or the like.

(2) Functional Block Configuration of Radio Communication System Next, the functional block configuration of the radio communication system 10 will be described.

(2.1) Configuration of gNB FIG. 4 is a block diagram showing an example of the configuration of the gNB 100 according to one embodiment. The gNB 100 includes, for example, a transmitting section 101, a receiving section 102, and a control section 103. The gNB 100 wirelessly communicates with the UE 200 (see FIG. 5).

The transmission unit 101 transmits a DL (Downlink) signal to the UE200. For example, transmission section 101 transmits a DL signal under the control of control section 103 .

For example, the transmission unit 101 transmits various control signals (radio resource control (RRC) layer control signals, etc.), reference signals, data signals, etc. to the UE 200 as DL signals. Transmitter 101, for example, as described below, transmits to UE 200 information on first priority and second priority, which are different from each other, corresponding to PUCCH. In addition, transmitting section 101 transmits various parameters for determining the number of PRBs to UE 200, for example, as described below.

For example, the DL signal may include information indicating scheduling related to signal transmission by the UE 200 (for example, UL grant), higher layer control information, and the like.

The receiving unit 102 receives the UL (Uplink) signal transmitted from the UE200. For example, receiving section 102 receives a UL signal under the control of control section 103 .

For example, the receiving unit 102 receives, from the UE 200, signals including information about the processing capability of the UE 200 (for example, UE capability), various control signals, reference signals, data signals, etc., as UL signals.

Channels used to transmit DL signals include, for example, data channels and control channels. For example, the data channel may include a physical downlink shared channel (PDSCH), and the control channel may include a physical downlink control channel (PDCCH). For example, gNB 100 transmits control information to UE 200 using PDCCH, and transmits DL data signals using PDSCH. PDSCH is an example of a downlink shared channel, and PDCCH is an example of a downlink control channel.

Reference signals included in DL signals include, for example, Demodulation Reference Signal (DMRS), Phase Tracking Reference Signal (PTRS), Channel State Information - Reference Signal (CSI-RS), Sounding Reference Signal (SRS) and At least one of Positioning Reference Signal (PRS) may be included. For example, reference signals such as DMRS and PTRS are used for demodulation of DL data signals and transmitted using PDSCH.

The control unit 103 controls overall communication operations of the eNB 100, including transmission processing in the transmission unit 101 and reception processing in the reception unit 102.

For example, the control unit 103 acquires information such as data and control information from the upper layer and outputs it to the transmission unit 101. In addition, control section 103 outputs data received from receiving section 102, control information, and the like to an upper layer.

(2.2) Configuration of UE FIG. 5 is a block diagram showing an example configuration of the UE 200 according to one embodiment. The UE 200 includes a receiver 201, a transmitter 202, and a controller 203, for example. UE200 communicates with gNB100 (refer FIG. 4) by radio, for example.

The receiving unit 201 receives the DL signal transmitted from the gNB100. For example, receiving section 201 receives a DL signal under the control of control section 203 .

For example, the receiving unit 201 receives various control signals, reference signals, data signals, etc. from the gNB 100 as DL signals. For example, the receiving unit 201 receives, from the gNB 100, information about different first and second priorities corresponding to PUCCH, as described below. Also, the receiving section 201 receives various parameters for determining the number of PRBs from the gNB 100, for example, as described below.

The transmitting unit 202 transmits the UL signal to the gNB100. For example, the transmitter 202 transmits UL signals under the control of the controller 203 .

For example, the transmitting unit 202 transmits, as UL signals, signals including information about the processing capability of the UE 200, various control signals, reference signals, data signals, etc. to the gNB 100. Transmitter 202, for example, transmits a first UCI with a first priority and a second UCI with a second priority to gNB 100, as described below.

Channels used to transmit UL signals include, for example, data channels and control channels. For example, the data channel may include PUSCH and the control channel may include PUCCH. For example, UE 200 receives control information from gNB 100 using PUCCH, and transmits UL data signals using PUSCH. PUSCH is an example of an uplink shared channel, and PUCCH is an example of an uplink control channel. A shared channel may also be referred to as a data channel.

The reference signal included in the UL signal may include at least one of DMRS, PTRS, CSI-RS, SRS and PRS, for example. For example, reference signals such as DMRS and PTRS are used for demodulation of UL data signals and transmitted using PUSCH.

The control unit 203 controls overall communication operations of the UE 200, including reception processing in the reception unit 201 and transmission processing in the transmission unit 202.

For example, the control unit 203 acquires information such as data and control information from the upper layer and outputs it to the transmission unit 202. Also, the control unit 203 outputs, for example, the data and control information received from the receiving unit 201 to the upper layer.

Further, for example, as described below, the control unit 203 determines that the number of PRBs configured with PUCCH for the payload size of the first UCI having the first priority and the payload size of the second UCI having the second priority is If insufficient, determine the number of PUCCH PRBs to which the first UCI is mapped.

In addition, for example, as described below, the control unit 203 determines the minimum number of PRBs based on the payload size of the first UCI, and part of the second UCI is reduced from the set number of PRBs to the minimum number of PRBs. Map (multiplex) to the number of PRBs that is less than the number of PRBs.

Also, the control unit 203 determines the minimum number of PRBs based on the payload size of the first UCI, performs code rate adjustment on the second UCI, and performs code rate adjustment on the second UCI, for example, as described below. The second UCI obtained is mapped (multiplexed) to the number of PRBs obtained by subtracting the minimum number of PRBs from the set number of PRBs.

Also, the control unit 203, for example, as described below, based on the payload size of the first UCI, determines the minimum number of PRBs, bundles (compresses) the second UCI, and converts the bundled second UCI to , is mapped (multiplexed) to the number of PRBs obtained by subtracting the minimum number of PRBs from the set number of PRBs.

Also, the channels used for DL signal transmission and the channels used for UL signal transmission are not limited to the above examples. For example, channels used for transmitting DL signals and channels used for transmitting UL signals may include Random Access Channel (RACH) and Physical Broadcast Channel (PBCH). RACH may be used, for example, to transmit DCI including Random Access Radio Network Temporary Identifier (RA-RNTI).

(3) Operation of Radio Communication System An operation example of the radio communication system 10 will be described below. Specifically, operations related to determining the number of PRBs to be used for transmission of signals or channels with different priorities are described.

(3.1) Assumptions In the wireless communication system 10, further sophistication of mobile broadband (e.g., enhanced Mobile Broadband (eMBB)), machine type communication (e.g., massive Machine Type Communications (mMTC), Internet of Things (IoT)), highly reliable and low-latency communications (e.g., Ultra-Reliable and Low-Latency Communications (URLLC)), and other traffic types (also called services, service types, communication types, use cases, etc.) be. For example, URLLC requires lower delay and higher reliability than eMBB.

　In NR since Release 16 of 3GPP, setting multiple levels (for example, two levels) of priority for a given signal or channel is being considered. For example, it is conceivable to set different priorities for each signal or channel respectively corresponding to different traffic types to control communication (for example, transmission control at the time of collision, etc.). This makes it possible to control communication by setting different priorities for the same signal or channel according to the service type or the like.

The priority is a signal (e.g., acknowledgment (hybrid automatic repeat request acknowledgment (HARQ-ACK)) for one or more transport blocks (TB), reference signal, etc.), channel (PDSCH, PUSCH, PUCCH, etc.), reference It may be configured for at least one of signaling (eg, CSI, SRS, etc.), scheduling request (SR) and HARQ-ACK codebook. For example, priorities may be set for the PUCCH used for HARQ-ACK transmission, the PUCCH used for SR transmission, and the PUCCH used for CSI transmission. Note that HARQ-ACK, SR and CSI are examples of UCI.

Also, for example, priority may be set for dynamic grant-based PUSCH, configuration grant-based PUSCH, and the like.

Also, for example, priority is set for HARQ-ACK for dynamically scheduled PDSCH, HARQ-ACK for semi-persistent PDSCH (SPS PDSCH), and HARQ-ACK for SPS PDSCH release. good too. Alternatively, priority may be set for the HARQ-ACK codebooks corresponding to these HARQ-ACKs. When priority is set for PDSCH, the priority of PDSCH may be read as the priority of HARQ-ACK for the PDSCH.

A priority may be defined to include a certain priority (eg, high priority (HP)) and a priority lower than the certain priority (eg, low priority (LP)). Alternatively, three or more types of priorities may be set.

Information about the priority, upper layer signaling (e.g., RRC signaling, MAC (Medium Access Control) signaling (e.g., MAC CE (Control Element)) or a combination thereof) and downlink control information (DCI: Downlink Control Information) may be notified/configured from the gNB 100 to the UE 200 using at least one of them. For example, the SR priority may be set with a higher layer parameter (eg, schedulingRequestPriority). Further, for example, P-CSI/SP-CSI transmitted by PUCCH may be set with a predetermined priority (for example, LP), whereas A-CSI/SP-CSI transmitted by PUSCH , the priority may be notified by DCI (for example, DCI for trigger or DCI for activation). Also, for example, the priority of HARQ-ACK for PDSCH (for example, dynamic PDSCH) scheduled in DCI may be indicated in the DCI. Also, for example, the priority of HARQ-ACK for SPS PDSCH may be set by a higher layer parameter, or may be notified by DCI that instructs activation of SPS PDSCH. Also, for example, the priority of a dynamic grant-based PUSCH may be indicated in the DCI that schedules the PUSCH. Also, for example, the configuration grant-based PUSCH priority may be configured by a higher layer parameter. Also, for example, a predetermined priority (eg, LP) may be set for P-SRS/SP-SRS and A-SRS triggered by DCI (eg, DCI format 0_1/DCI format 2_3). .

<PUCCH resource>
In existing wireless communication systems (eg, Release 15 of 3GPP), PUCCH resources used for HARQ-ACK transmission for DL transmission (eg, PDSCH) are based on information notified by higher layer signaling and DCI, respectively. determined by For example, the UE 200 may determine PUCCH resources to be used for HARQ-ACK transmission based on steps 1-3 below. Note that the order of steps 1 to 3 may be changed.

In step 1, the UE 200 determines the HAQR-ACK feedback timing (K1). K1 corresponds to a period (eg, slot) from reception of DL transmission (eg, PDSCH) to transmission of HAQR-ACK for the DL transmission. Information about HARQ-ACK timing (K1) may be included in the DCI used for PDSCH scheduling.

In step 2, UE 200 determines the PUCCH resource set to be used in the slot for transmitting HAQR-ACK. One or more PUCCH resource sets are notified/configured to the UE 200 by higher layer signaling. A PUCCH resource set may include one or more PUCCH resources. For example, gNB 100 may notify UE 200 of K (eg, 1≦K≦4) PUCCH resource sets. Each PUCCH resource set may include M (eg, 8≦M≦32 or 1≦M≦8) PUCCH resources. The UE 200 may determine one PUCCH resource set from the configured K PUCCH resource sets based on the UCI payload size (UCI payload size). The UCI payload size may be the number of UCI bits not including Cyclic Redundancy Code (CRC) bits. In this way, the UE 200 selects one PUCCH based on the UCI payload size (for example, HARQ-ACK bits when the UCI is HARQ-ACK) from one or more PUCCH resource sets configured in a higher layer. Select a resource set.

In step 3, UE 200 determines one PUCCH resource from one or more PUCCH resources included in the PUCCH resource set. For example, UE 200 selects PUCCH resources used for UCI transmission based on at least one of DCI and implicit information from M PUCCH resources included in the determined PUCCH resource set. You can decide.

In relation to multiplexing the signal to the PUCCH resource determined in this way, in Release 15 of 3GPP, the UE 200 adaptively (variable ) using configurable PUCCH format 2 (hereinafter PF2) or PUCCH format 3 (hereinafter PF3) to multiplex HARQ-ACK or CSI and SR into PUCCH with one target code rate (coding rate) A procedure is specified to determine the number of PRBs to be transmitted in the TS38.213 Clause 9.2.5.1 and Figure 6). Also, a procedure for determining the number of PRBs for UE 200 to multiplex and transmit HARQ-ACK, SR, and CSI on PUCCH with one target code rate using PF2 or PF3 is defined (TS38. 213 Clause 9.2.5.2 and see Figure 7).

In Release 17 of 3GPP, PF3 (or PF2) is used to multiplex and transmit HARQ-ACK with HP (HP HARQ-ACK) and HARQ-ACK with LP (LP HARQ-ACK). to multiplex and transmit HP HARQ-ACK and LP HARQ-ACK with two separate target code rates (target code rate for HP HARQ-ACK and target code rate for LP HARQ-ACK) A procedure for determining the number of PRBs for Then, in the form of expanding the above stipulations, when the following conditional expression (1) is satisfied, the following for multiplexing (all of) HP HARQ-ACK and (all of) LP HARQ-ACK to PF3: It was agreed that the minimum PRB number that satisfies conditional expression (2) of is determined as M^PUCCH_RB,min.

Various abbreviations in the above conditional expressions (1) and (2) represent the following.
O_HP_UCI --- The number of bits in the bit string of HP UCI (HP HARQ-ACK) to be multiplexed (or mapped) O_LP_UCI --- The number of bits in the bit string of LP UCI (LP HARQ-ACK) to be multiplexed (or mapped) O_CRC, HP_UCI ..Number of bits of CRC bit string for HP UCI (HP HARQ-ACK) to be multiplexed (or mapped) O_CRC,LP_UCI ..Number of bits of CRC bit string for LP UCI (LP HARQ-ACK) to be multiplexed (or mapped) r_HP_UCI.. Determined (target) code rate for HP UCI (HP HARQ-ACK) multiplexed (or mapped) to (multiplexed) resource r_LP_UCI LP multiplexed (or mapped) to (multiplexed) resource Determined (target) code rate for UCI (LP HARQ-ACK) Q_m: Parameter representing modulation scheme M^PUCCH_RB: Configured PRB number of PUCCH resources N^RB_sc,ctrl: PRB Information on the number of UCI subcarriers per unit N^PUCCH_symb-UCI: number of PUCCH symbols

It should be noted that the content of the above agreement can be expressed in another way as shown in FIGS. 6 and 7 as follows.
If a UE transmits a PUCCH with O _HPACK HARQ-ACK information bits, O _LPACK HARQ-ACK information bits , O _HPCRC CRC bits, and O _LPCRC CRC bits using (PUCCH format 2 or) PUCCH format 3 in a PUCCH resource that includes M PRBs, the UE determines a number of PRBs M for the PUCCH transmission to be the minimum number of PRBs, that is smaller than or equal to a number of PRBs provided by nrofPRBs in PUCCH-format2 or nrofPRBs in PUCCH-format3 and starts from the first PRB from the number of PRBs, that results to

Equation (4) in Equation (3) above may be replaced with Equation (5) below.

However, there is room for further investigation regarding processing when conditional expression (1) is not satisfied. More specifically, if conditional expression (1) is not satisfied, HP HARQ-ACK and LP HARQ-ACK cannot be multiplexed and transmitted using the set number of PRBs of PUCCH resources. For example, if the configured PRB number M^PUCCH_RB is 4, the PRB number for HP HARQ-ACK is 3, and the PRB number for LP HARQ-ACK is 10, then for HP HARQ-ACK and the number of PRBs for LP HARQ-ACK (3 + 10 = 13) exceeds the set number of PRBs M^PUCCH_RB (4), so HP HARQ-ACK and LP HARQ-ACK are multiplexed. cannot be sent. Therefore, it is desirable to take measures to properly transmit HP HARQ-ACK and LP HARQ-ACK even in such cases. For example, it is not clearly defined how to determine the number of PRBs for PF2 and PF3 if conditional expression (1) is not satisfied. In addition, for example, if only one of HP HARQ-ACK and LP HARQ-ACK is transmitted on PUCCH resources, how to transmit or drop the other of HP HARQ-ACK and LP HARQ-ACK LP HARQ-ACK completely (completely ) to drop, etc.) is not clearly defined.

Therefore, below, if the conditional expression (1) is not satisfied, that is, for the payload size of HP HARQ-ACK and LP HARQ-ACK, when the number of PRBs of PUCCH resources set in UE 200 is insufficient , communication control focusing on the expressions after "if" in the above expression (3) will be described.

In the following, the operation of the wireless communication system 10 will be described by taking HP HARQ-ACK and LP HARQ-ACK as examples of two or more UCIs with different priorities, similar to the above.

(3.2) Operation overview In operation example 1, the UE 200 transmits either HP HARQ-ACK or LP HARQ-ACK using the set number of PRBs. In operation example 2, UE 200 transmits one of HP HARQ-ACK and LP HARQ-ACK and the other of HP HARQ-ACK and LP HARQ-ACK or part thereof using the set number of PRBs. Send. In operation example 3, when one LP HARQ-ACK and two HP HARQ-ACKs overlap (collide) in the same slot in the time domain, the UE 200 transmits the LP HARQ-ACK and the latter half of the HP HARQ All or part of the -ACK PUCCH is multiplexed and transmitted, or the second half HP HARQ-ACK PUCCH is not multiplexed and transmitted.

(3.3) Details of Operation Hereinafter, the operation examples 1 to 3 described above will be described in detail. In the following, unless otherwise specified, PF2 or PF3 or a new PUCCH format that can be adaptively set so that the number of PRBs is equal to or less than the maximum number of PRBs notified/set by the gNB 100 is used.

(3.3.1) Operation example 1 <Operation example 1-1>
In operation example 1-1, the UE 200 (control unit 203) sets the number of PRBs for transmitting either HP HARQ-ACK or LP HARQ-ACK to the transmitting HP HARQ-ACK or LP HARQ-ACK. based on the payload size of the

Specifically, when HP HARQ-ACK is transmitted using the set number of PRBs (less than M^PUCCH_RB PRBs), the UE 200 (control unit 203) satisfies the following conditional expression (6) , determine the number of PRBs to send HP HARQ-ACK based on the payload size of HP HARQ-ACK, and decide to drop LP HARQ-ACK. Note that the number of PRBs for transmitting HP HARQ-ACK is M^PUCCH_RB, min, or the number of PRBs allowed for a specific PUCCH format (for example, PF3) is limited and M^PUCCH_RB, If min is not included in the number of allowed PRBs, it may be the number of allowed PRBs closest to M^PUCCH_RB,min.

Various abbreviations in the above conditional expression (6) are as described above.

On the other hand, when LP HARQ-ACK is transmitted using the set number of PRBs (less than M^PUCCH_RB PRBs), UE 200 (control section 203) satisfies the following conditional expression (7): Determine the number of PRBs to send the LP HARQ-ACK based on the payload size of the LP HARQ-ACK and decide to drop the HP HARQ-ACK. In addition, the number of PRBs for transmitting LP HARQ-ACK is M^PUCCH_RB,min, or the number of PRBs allowed for a specific PUCCH format is limited and M^PUCCH_RB,min is allowed. If not included in the PRB count, it may be the allowed PRB count closest to M^PUCCH_RB,min.

Various abbreviations in the above conditional expression (7) are as described above.

Then, UE 200 (transmitting section 202) transmits HP HARQ-ACK or LP HARQ-ACK to gNB 100 using the determined number of PRBs. On the other hand, UE 200 (control unit 203) drops all LP HARQ-ACKs or HP HARQ-ACKs that are not to be transmitted, and transmits the dropped LP HARQ-ACKs or HP HARQ-ACKs to gNB 100 using another resource. , and UE 200 (transmitting section 202) transmits the dropped LP HARQ-ACK or HP HARQ-ACK to gNB 100 using another resource.

The UE 200 may transmit other signals or channels using the remaining (M^PUCCH_RB - M^PUCCH_RB, min) or less PRBs.

As described above, according to operation example 1-1, only the minimum number of PRBs are used to transmit HARQ-ACK, so it is possible to avoid useless resource usage and improve resource usage efficiency. .

<Operation example 1-2>
In operation example 1-2, the UE 200 determines the number of PRBs for transmitting either HP HARQ-ACK or LP HARQ-ACK to be the set number of PRBs. That is, UE 200 determines the number of PRBs for transmitting either HP HARQ-ACK or LP HARQ-ACK to be M^PUCCH_RB.

Then, UE 200 (transmitting section 202) transmits HP HARQ-ACK or LP HARQ-ACK to gNB 100 using the determined number M^PUCCH_RB of PRBs. On the other hand, the UE 200 (control unit 203) drops the LP HARQ-ACK or HP HARQ-ACK that is not to be transmitted, and transmits the dropped LP HARQ-ACK or HP HARQ-ACK to the gNB 100 using another resource. UE 200 (transmitting section 202) transmits the dropped LP HARQ-ACK or HP HARQ-ACK to gNB 100 using another resource.

As described above, according to the operation example 1-2, the set number of PRBs is used to transmit HARQ-ACK, so it is possible to avoid performing calculation for determining the number of PRBs separately. , can simplify the operation and implementation of the UE 200.

(3.3.2) Operation example 2 <Operation example 2-1>
In operation example 2-1, UE 200 (control unit 203) sets the number of PRBs for transmitting all of one of HP HARQ-ACK and LP HARQ-ACK to HP HARQ-ACK or LP HARQ -Based on payload size of ACK. Also, the UE 200 (control unit 203) transmits a part of the other of HP HARQ-ACK and LP HARQ-ACK, which is transmitted using PRBs other than the determined number of PRBs among the set number of PRBs. determine the payload size of

Specifically, when all HP HARQ-ACKs are transmitted using a set number of PRBs (PRBs less than M^PUCCH_RB), as a first step, the UE 200 (control unit 203) The number of PRBs for transmitting HP HARQ-ACK is determined based on the payload size of HP HARQ-ACK so as to satisfy conditional expression (8) below. In addition, the number of PRBs for transmitting HP HARQ-ACK is M^HP_PUCCH_RB,min instead of M^_PUCCH_RB,min above, or the number of PRBs allowed for a specific PUCCH format is limited, And if M^HP_PUCCH_RB,min is not included in the number of allowed PRBs, it may be the number of allowed PRBs closest to M^HP_PUCCH_RB,min.

Various abbreviations in the above conditional expression (8) are as described above.

Then, UE 200 (transmitting section 202) transmits the entire HP HARQ-ACK to gNB 100 using the determined number of PRBs.

In addition, as a second step, the UE 200 (control unit 203), out of the set number of PRBs (M^PUCCH_RB PRBs), determines the number of Partial payload size O^part_LP_UCI of LP HARQ-ACK sent using PRBs ((M^PUCCH_RB - M^HP_PUCCH_RB, min) PRBs) other than PRBs (M^HP_PUCCH_RB, min PRBs) decide.

Various abbreviations in the above conditional expression (9) are as described above.

Then, UE 200 (transmitting section 202) selects PRBs ((M^ PUCCH_RB - M^HP_PUCCH_RB,min) PRBs) are used to send part of the LP HARQ-ACK, which is the determined payload size, to the gNB 100.

On the other hand, when all of the LP HARQ-ACKs are transmitted using the set number of PRBs (PRBs less than M^PUCCH_RB), as a first step, the UE 200 (control unit 203) has the following conditions: The number of PRBs for transmitting LP HARQ-ACK is determined based on the payload size of LP HARQ-ACK so as to satisfy equation (10). Note that the number of PRBs for transmitting LP HARQ-ACK is M^LP_PUCCH_RB,min instead of M^_PUCCH_RB,min above, or the number of PRBs allowed for a specific PUCCH format is limited, And if M^LP_PUCCH_RB,min is not included in the number of allowed PRBs, it may be the number of allowed PRBs closest to M^LP_PUCCH_RB,min.

Various abbreviations in the above conditional expression (10) are as described above.

Then, UE 200 (transmitting section 202) transmits the entire LP HARQ-ACK to gNB 100 using the determined number of PRBs.

In addition, as a second step, the UE 200 (control unit 203), out of the set number of PRBs (M^PUCCH_RB PRBs), determines the number of Partial payload size O^part_HP_UCI of HP HARQ-ACK sent using PRBs ((M^PUCCH_RB - M^LP_PUCCH_RB, min) PRBs) other than PRBs (M^LP_PUCCH_RB, min PRBs) decide.

Various abbreviations in the above conditional expression (11) are as described above.

Then, UE 200 (transmitting section 202) selects PRBs ((M^ PUCCH_RB - M^LP_PUCCH_RB,min) PRBs) are used to send part of the HP HARQ-ACK with the determined payload size to the gNB 100.

Note that the first step and the second step may be executed in parallel.

In this way, UE 200 (control unit 203) maps part of LP HARQ-ACK or HP HARQ-ACK to the number of PRBs obtained by subtracting the determined number of PRBs from the set number of PRBs.

As described above, according to the operation example 2-1, all of one of HP HARQ-ACK and LP HARQ-ACK and HP HARQ-ACK and LP HARQ-ACK without using PRBs other than the set number of PRBs Since part of the other is transmitted, resource usage efficiency can be improved and HARQ-ACK delay can be shortened.

<Operation example 2-2>
In operation example 2-2, UE 200 (control unit 203) adjusts the code rate for one HARQ-ACK in order to transmit HP HARQ-ACK and LP HARQ-ACK with the set number of PRBs. conduct.

Specifically, if all HP HARQ-ACKs are transmitted with a set number of PRBs (less than M^PUCCH_RB PRBs) without code rate adjustment, as a first step: In the same procedure as in operation example 1-1, UE 200 (control unit 203) sets the number of PRBs for transmitting HP HARQ-ACK to the payload size of HP HARQ-ACK so as to satisfy conditional expression (6) above. to decide based on Note that the number of PRBs for sending HP HARQ-ACK is M^HP_PUCCH_RB,min instead of M^PUCCH_RB,min, or the number of PRBs allowed for a specific PUCCH format is limited, and If M^HP_PUCCH_RB,min is not included in the number of allowed PRBs, it may be the number of allowed PRBs closest to M^HP_PUCCH_RB,min.

As a second step, UE 200 (control unit 203) selects PRBs other than the determined number of PRBs (M^HP_PUCCH_RB, min PRBs) out of the set number of PRBs (M^PUCCH_RB PRBs) In order to be able to transmit LP HARQ-ACK using ((M^PUCCH_RB - M^HP_PUCCH_RB, min) PRBs), LP until PRBs are sufficient so as to satisfy the following conditional expression (12) Adjust HARQ ACK code rate r'_LP_UCI.

Various abbreviations in the above conditional expression (12) are as described above.

Then, UE 200 (transmitting section 202) uses the determined number of PRBs (M^HP_PUCCH_RB, min PRBs) to transmit all of HP HARQ-ACK to gNB 100, and the set number of PRBs (M^ code rate adjustment using PRBs ((M^PUCCH_RB - M^HP_PUCCH_RB, min) PRBs) other than the determined number of PRBs (M^HP_PUCCH_RB, min PRBs) among PUCCH_RB PRBs) Send the received LP HARQ-ACK to gNB100.

On the other hand, if all LP HARQ-ACKs are transmitted using a set number of PRBs (less than M^PUCCH_RB PRBs) without code rate adjustment, as a first step, Operation Example 1 In the same procedure as -1, the UE 200 (control unit 203) sets the number of PRBs for transmitting LP HARQ-ACK so as to satisfy the above conditional expression (7) based on the payload size of LP HARQ-ACK decide. Note that the number of PRBs for transmitting LP HARQ-ACK is M^LP_PUCCH_RB,min instead of M^PUCCH_RB,min, or the number of PRBs allowed for a specific PUCCH format is limited, and If M^LP_PUCCH_RB,min is not included in the number of allowed PRBs, it may be the number of allowed PRBs closest to M^LP_PUCCH_RB,min.

As a second step, the UE 200 (control unit 203), among the set number of PRBs (M^PUCCH_RB PRBs), PRBs other than the determined number of PRBs (M^LP_PUCCH_RB, min PRBs) In order to be able to transmit HP HARQ-ACK using ((M^PUCCH_RB - M^LP_PUCCH_RB, min) PRBs), HP Adjust HARQ ACK code rate r'_HP_UCI.

Various abbreviations in the above conditional expression (13) are as described above.

Then, UE 200 (transmitting section 202) uses the determined number of PRBs (M^LP_PUCCH_RB, min PRBs) to transmit all of LP HARQ-ACK to gNB 100, and the set number of PRBs (M^ code rate adjustment using PRBs ((M^PUCCH_RB - M^LP_PUCCH_RB, min) PRBs) other than the determined number of PRBs (M^LP_PUCCH_RB, min PRBs) among PUCCH_RB PRBs) Send all received HP HARQ-ACK to gNB100.

In this way, the UE 200 (control unit 203) performs code rate adjustment on LP HARQ-ACK or HP HARQ-ACK, and the code rate adjusted LP HARQ-ACK or HP HARQ-ACK is set to Map to the number of PRBs obtained by subtracting the number of PRBs determined from the number of PRBs.

[Modification]
In the above, an example of performing code rate adjustment was described, but instead of performing code rate adjustment or in addition to performing code rate adjustment, by adjusting the modulation scheme, a set number of PRBs HP HARQ-ACK and LP HARQ-ACK may be sent without using PRBs other than ^PUCCH_RB PRBs). That is, instead of adjusting r'_LP_UCI or r'_HP_UCI, or in addition to adjusting r'_LP_UCI or r'_HP_UCI, in conditional expression (12) or conditional expression (13) above, PRBs are sufficient. Q_m may be adjusted until

Also, in the above, an example of adjusting the code rate for one HARQ-ACK was explained, but instead, the number of bits is less than or equal to the set number of PRBs (M^PUCCH_RB PRBs). so that for both HP HARQ-ACK and LP HARQ-ACK, a set number of PRBs (M^ HP HARQ-ACK and LP HARQ-ACK may be sent without using PRBs other than PUCCH_RB PRBs).

As described above, according to Operation Example 2-2, HP HARQ-ACK and LP HARQ-ACK are transmitted without using PRBs other than the set number of PRBs, so it is possible to improve resource usage efficiency. Yes, it is possible to shorten the HARQ-ACK delay.

<Operation example 2-3>
In operation example 2-3, UE 200 (control unit 203) performs bundling (compression) in order to transmit HP HARQ-ACK and LP HARQ-ACK with the set number of PRBs.

Specifically, if all HP HARQ-ACKs are sent in a set number of PRBs (less than M^PUCCH_RB PRBs) without being bundled (compressed), as a first step, the operation In the same procedure as in Example 1-1, UE 200 (control unit 203) sets the number of PRBs for transmitting HP HARQ-ACK to the payload size of HP HARQ-ACK so as to satisfy conditional expression (6) above. decision based on Note that the number of PRBs for sending HP HARQ-ACK is M^HP_PUCCH_RB,min instead of M^PUCCH_RB,min, or the number of PRBs allowed for a specific PUCCH format is limited, and If M^HP_PUCCH_RB,min is not included in the number of allowed PRBs, it may be the number of allowed PRBs closest to M^HP_PUCCH_RB,min.

As a second step, UE 200 (control unit 203) selects PRBs other than the determined number of PRBs (M^HP_PUCCH_RB, min PRBs) out of the set number of PRBs (M^PUCCH_RB PRBs) In order to be able to transmit LP HARQ-ACK using ((M^PUCCH_RB - M^HP_PUCCH_RB, min) PRBs), in the same procedure as the second step in Operation Example 2-1, the above conditional expression Bundle LP HARQ-ACKs until there are enough PRBs to satisfy (9). That is, the UE 200 (control unit 203) sets the number of LP HARQ-ACK bits (corresponding to O^part_LP_UCI in conditional expression (9)) to be transmitted after bundling so that the above conditional expression (9) is satisfied. You can decide.

For example, the UE 200 (control unit 203) may bundle the LP HARQ-ACK bits so that the LP HARQ-ACK bits are equal to or less than the determined LP HARQ-ACK bits. For example, if the number of LP HARQ-ACK bits is 18 bits and the determined number of LP HARQ-ACK bits is 4, the UE 200 (control unit 203) bundles 18 bits into 1 bit every 5 bits. good. In this case, the LP HARQ-ACK bits are adjusted from 18 bits to 4 bits. UE 200 (control unit 203) controls to map the adjusted number of LP HARQ-ACK bits (4 bits in this example) to (M^PUCCH_RB - M^HP_PUCCH_RB, min) PRBs.

Alternatively, UE 200 (control section 203) may apply multi-level bundling to LP HARQ-ACK bits. UE 200 (control section 203) may perform control to drop bits in order from the highest level. The UE 200 (control unit 203) may apply 3-level bundling, for example. For example, if the LP HARQ-ACK bits are 64 bits (e.g., '11111011', '11111111', '11111111', '11001111', '11111111', '11110110', '11111111' and '11111111'), the UE 200 For example, the (control unit 203) performs the You can control it. Note that these numerical values are examples and are not limited to these.

In the first level bundling, bundling (adjusted to 1 bit) is performed on LP HARQ-ACK bits (64 bits in this example) every X bits (X=8 in this example). The UE 200 (control unit 203) sets "0" when at least one "0" is included in an 8-bit unit, and sets "1" when all 8 bits are "1". In this example, the first level bundling yields "01101011".

In the second level bundling, every Y bits (in this example, Y = 2) for the group (in this example, the group of 8-bit units) that became "0" by the first level bundling Perform bundling (adjusted to 1 bit). In this example, bundling is performed every 2 bits for the three groups (“11111011”, “11001111” and “11110110” in this example) that are “0” due to bundling at the first level. Thus, "1101", "1011" and "1100" are obtained.

In the third level bundling, Y bits (here, Y = 2) are used for groups that are "0" by the second level bundling (in this example, groups of 2-bit units). represents the original bits as third level bit information. In this example, due to the third level bundling, "10", "00", "01" are the original bits corresponding to the four "0"s that have become "0" due to the second level bundling. and "10" are obtained.

The UE 200 (control unit 203) may control the LP HARQ-ACK bits to be transmitted based on the LP HARQ-ACK bit size after adjustment by bundling. For example, if the adjusted LP HARQ-ACK bits (e.g., 28 bits (first level adjusted 8 bits + second level adjusted 12 bits + third level adjusted 8 bits)) are less than or equal to the determined number of LP HARQ-ACK bits In some cases, the UE 200 (control unit 203) may perform control to transmit bits (28 bits in this example) corresponding to multiple levels of bundling as LP HARQ-ACK bits.

On the other hand, if the adjusted LP HARQ-ACK bits (for example, 28 bits) exceeds the determined number of LP HARQ-ACK bits, the UE 200 (control unit 203) determines that the number of LP HARQ-ACK bits is less than or equal to the determined number of LP HARQ-ACK bits. Some of the LP HARQ-ACK bits may be dropped so that The order of dropping may be third level adjustment, second level adjustment, first level adjustment bits. For example, if the adjusted LP HARQ-ACK bits (for example, 20 bits (first level adjustment 8 bits + second level adjustment 12 bits)) is less than or equal to the determined number of LP HARQ-ACK bits, UE 200 (control unit 203) may control to transmit the bits (20 bits in this example) corresponding to the first level adjustment and the second level adjustment as LP HARQ-ACK bits.

Then, UE 200 (transmitting section 202) uses the determined number of PRBs (M^HP_PUCCH_RB, min PRBs) to transmit all of HP HARQ-ACK to gNB 100, and the set number of PRBs (M^ PUCCH_RB PRBs), using PRBs ((M^PUCCH_RB - M^HP_PUCCH_RB, min) PRBs) other than the determined number of PRBs (M^HP_PUCCH_RB, min PRBs), by bundling Send adjusted LP HARQ-ACK to gNB100.

On the other hand, when all LP HARQ-ACKs are transmitted using a set number of PRBs (less than M^PUCCH_RB PRBs) without being bundled, as a first step, operation example 1-1 , the UE 200 (control unit 203) determines the number of PRBs for transmitting LP HARQ-ACK based on the payload size of LP HARQ-ACK so as to satisfy the above conditional expression (7). . Note that the number of PRBs for transmitting LP HARQ-ACK is M^LP_PUCCH_RB,min instead of M^PUCCH_RB,min, or the number of PRBs allowed for a specific PUCCH format is limited, and If M^LP_PUCCH_RB,min is not included in the number of allowed PRBs, it may be the number of allowed PRBs closest to M^LP_PUCCH_RB,min.

As a second step, the UE 200 (control unit 203), among the set number of PRBs (M^PUCCH_RB PRBs), PRBs other than the determined number of PRBs (M^LP_PUCCH_RB, min PRBs) ((M^PUCCH_RB - M^LP_PUCCH_RB, min) PRBs) to enable transmission of HP HARQ-ACK, the above conditional expression Bundle HP HARQ-ACK until there are enough PRBs to satisfy (11). That is, the UE 200 (control unit 203) sets the number of HP HARQ-ACK bits (corresponding to O^part_HP_UCI in conditional expression (11)) to be transmitted after bundling so that the above conditional expression (11) is satisfied. You can decide.

Then, UE 200 (transmitting section 202) uses the determined number of PRBs (M^LP_PUCCH_RB, min PRBs) to transmit all of LP HARQ-ACK to gNB 100, and the set number of PRBs (M^ PUCCH_RB PRBs), using PRBs other than the determined number of PRBs (M^LP_PUCCH_RB, min PRBs) ((M^PUCCH_RB - M^LP_PUCCH_RB, min) PRBs), by bundling Send adjusted HP HARQ-ACK to gNB100.

In this way, UE 200 (control unit 203) bundles LP HARQ-ACK or HP HARQ-ACK, and converts bundled LP HARQ-ACK or HP HARQ-ACK to PRB determined from the set number of PRBs. Map to a reduced number of PRBs.

[Modification]
The above describes an example of bundling one HARQ-ACK bit, but instead, the HP HARQ-ACK bit is bundled so that it is no more than the number of bits corresponding to the set number of PRBs (M^PUCCH_RB PRBs). By performing the bundling described above for both the ACK bit and the LP HARQ-ACK bit, HP HARQ-ACK and LP can be processed without using PRBs other than the set number of PRBs (M^PUCCH_RB PRBs). A HARQ-ACK may be sent.

As described above, according to Operation Example 2-3, HP HARQ-ACK and LP HARQ-ACK are transmitted without using PRBs other than the set number of PRBs, so it is possible to improve resource usage efficiency. Yes, it is possible to shorten the HARQ-ACK delay.

(3.3.3) Operation example 3 Operation example 3 is an LP HARQ-ACK over one slot (e.g., 14 symbols) and two or more HP HARQ-ACKs in the same slot (e.g., the first HP HARQ-ACK over the first half seven symbols). For the case where a HARQ-ACK (eg PF3) and a second HP HARQ-ACK over the last 7 symbols overlap (collide) in the time domain. The UE 200 (control unit 203) transmits the first HP HARQ-ACK in the first half 7 symbols, does not transmit the LP HARQ-ACK in the first half 7 symbols, and multiplexes all or part of it on the PUCCH of the second HP HARQ-ACK. Alternatively, it is transmitted without being multiplexed with the PUCCH of the second HP HARQ-ACK.

<Operation example 3-1>
If the PUCCH format of the second HP HARQ-ACK is PF2 or PF3 or a new PUCCH format that can be adaptively (variably) configured to be less than or equal to the maximum number of PRBs signaled/configured by gNB100, UE 200 (control unit 203) determines whether or not the second HP HARQ-ACK and LP HARQ-ACK can be multiplexed and transmitted based on conditional expression (1) above. When the second HP HARQ-ACK and the LP HARQ-ACK can be multiplexed and transmitted, the UE 200 (control unit 203) multiplexes the second HP HARQ-ACK and the LP HARQ-ACK, and the UE 200 (transmitting unit 202) Send the multiplexed second HP HARQ-ACK and LP HARQ-ACK to gNB100. On the other hand, when the second HP HARQ-ACK and the LP HARQ-ACK cannot be multiplexed and transmitted, the UE 200 (control unit 203) performs the above operation example 1-1, operation example 1-2, operation example 2-1, operation Applying Example 2-2 or Operation Example 2-3, UE 200 (transmitting section 202) transmits the second HP HARQ-ACK and LP HARQ-ACK to gNB 100 according to the applied operation example.

As described above, according to the operation example 3-1, the effect corresponding to the operation example 1-1, the operation example 1-2, the operation example 2-1, the operation example 2-2, or the operation example 2-3 can be obtained. can.

<Operation example 3-2>
In operation example 3-2, PF2, PF3 and new PUCCH format, UE 200 (control section 203) multiplexes LP HARQ-ACK to PUCCH of second HP HARQ-ACK without determining PRB (number).

As described above, according to the operation example 3-2, all two HP HARQ-ACKs and all of the LP HARQ-ACKs are transmitted without using PRBs other than the set number of PRBs. can be improved and the HARQ-ACK delay can be made shorter.

(3-4) Notification of various parameters Priority information and parameters such as r_HP_UCI, r_LP_UCI, Q_m, M^PUCCH_RB, N^RB_sc, ctrl, and N^PUCCH_symb-UCI included in the above conditional expressions are It may be notified/configured from gNB 100 to UE 200 using at least one of layer signaling (eg, RRC signaling, MAC signaling (eg, MAC CE), or a combination thereof) and DCI.

(3-5) Terminal capability UE 200 transmits UE capability including information on whether or not PRB (number) determination based on separate HP (target) code rate and (target) LP code rate is supported to gNB 100. You can

(3.6) Operation Flow Next, an example of an operation flow according to the embodiment will be described with reference to FIGS. 8 and 9. FIG.

In one example of the operation flow, as shown in FIG. 8, in step S11, UE200 transmits a message including UE capability to gNB100. The UE capability may include information on whether to support PRB (number) determination based on separate HP (target) and (target) LP code rates, as described above.

In step S12, the UE200 receives higher layer signaling from the gNB100. Higher layer signaling may include information specifying priority, r_HP_UCI, r_LP_UCI, Q_m, M^PUCCH_RB, N^RB_sc, ctrl, N^PUCCH_symb-UCI, and so on.

At step S13, the UE 200 receives one or more DCIs from the gNB 100 via PDCCH. The DCI may include information specifying priority, such as r_HP_UCI, r_LP_UCI, Q_m, M^PUCCH_RB, N^RB_sc, ctrl, N^PUCCH_symb-UCI.

In step S14, the UE 200 determines that HP HARQ ACK and LP HARQ ACK cannot be multiplexed on the configured PUCCH resource. The determination may be based on conditional expression (1) above.

In step S15, the UE 200 operates according to Operation Example 1-1, Operation Example 1-2, Operation Example 2-1, Operation Example 2-2, or Operation Example 2-3. Note that, in step S15, when the UE 200 performs code rate adjustment and/or modulation scheme adjustment, the corresponding parameters (r'_LP_UCI, r'_HP_UCI and/or Q_m) may be reported to the gNB 100.

In another example of the operation flow, as shown in FIG. 9, in step S21, UE200 transmits a message including UE capability to gNB100. The UE capability may include information on whether to support PRB (number) determination based on separate HP (target) and (target) LP code rates, as described above.

In step S22, the UE200 receives higher layer signaling from the gNB100. Higher layer signaling may include information specifying priority, r_HP_UCI, r_LP_UCI, Q_m, M^PUCCH_RB, N^RB_sc, ctrl, N^PUCCH_symb-UCI, and so on.

　In step S23, the UE 200 receives one or more DCIs from the gNB 100 via the PDCCH. The DCI may include information specifying priority, such as r_HP_UCI, r_LP_UCI, Q_m, M^PUCCH_RB, N^RB_sc, ctrl, N^PUCCH_symb-UCI.

In step S24, the UE 200 operates according to Operation Example 3-1 or Operation Example 3-2. Note that in step S24, when the UE 200 performs code rate adjustment and/or modulation scheme adjustment, the corresponding parameters (r'_LP_UCI, r'_HP_UCI and/or Q_m) may be reported to the gNB 100.

In operation example 1 and operation example 2, whether to transmit all HP HARQ-ACK or LP HARQ-ACK may be stipulated in the specification, for example, or may be determined by higher layer signaling (RRC message) from the base station. , MAC CE, etc.) and/or via DCI.

In addition, in the operation examples 1 to 3, the expression "determine the number of PRBs" means "calculate the number of PRBs", "calculate the number of PRBs", "deduce the number of PRBs", or "determine the number of PRBs". It may be read as the expression "adjust".

In addition, in the operation example 2-1, the expression "determine the payload size" means "calculate the payload size" or "calculate the payload size" or "deduce the payload size" or "adjust the payload size". ” may be read as the expression.

Further, in the operation example 2-2, the expression "adjust the code rate" means "calculate the code rate", "calculate the code rate", "deduce the code rate", or "determine the code rate". ” may be read as the expression.

Further, in the operation example 2-3, the expression "determine the number of HARQ-ACK bits" means "calculate the number of HARQ-ACK bits" or "calculate the number of HARQ-ACK bits" or "calculate the number of HARQ-ACK bits". The expression may be read as "derive the number" or "adjust the number of HARQ-ACK bits".

[Other embodiments]
Although the embodiments of the present disclosure have been described above, it is obvious to those skilled in the art that the present disclosure is not limited to the above embodiments, and that various modifications and improvements are possible.

For example, any of the above operation examples 1-1, 1-2, 2-1, 2-2, 2-3, 3-1 and 3-2 Whether the example is used may be set by a higher layer parameter, may be reported to the gNB100 by the UE 200 as a UE capability, may be specified in the specification, may be set by a higher layer parameter, and the UE It may be reported to gNB100 by UE200 as capability.

Also, for example, instead of HP HAQR-ACK and LP HARQ-ACK as UCI, HP SR and LP SR may be applied to the present disclosure, or HP CSI and LP CSI may be applied to the present disclosure. However, any kind of HP UCI and LP UCI may apply to this disclosure.

Also, for example, instead of HP HAQR-ACK and LP HARQ-ACK multiplexing or mapping, other multiplexing or mapping combinations may be applied to the present disclosure, such as HP HAQR-ACK and LP SR multiplexing or mapping. good.

Also, for example, instead of two types of priority (HP and LP), three or more types of priority may be applied to the present disclosure.

<Hardware configuration, etc.>
It should be noted that the block diagrams used in the description of the above embodiments show blocks in units of functions. These functional blocks (components) are realized by any combination of at least one of hardware and software. Also, the method of implementing each functional block is not particularly limited. That is, each functional block may be implemented using one device that is physically or logically coupled, or directly or indirectly using two or more devices that are physically or logically separated (e.g. , wired, wireless, etc.) and may be implemented using these multiple devices. A functional block may be implemented by combining software in the one device or the plurality of devices.

Functions include judging, determining, determining, calculating, calculating, processing, deriving, investigating, searching, checking, receiving, transmitting, outputting, accessing, resolving, selecting, choosing, establishing, comparing, assuming, expecting, assuming, Broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc. can't For example, a functional block (component) that makes transmission work is called a transmitting unit or transmitter. In either case, as described above, the implementation method is not particularly limited.

For example, the gNB 100, UE 200, etc. in one embodiment of the present disclosure may function as a computer that performs processing of the wireless communication method of the present disclosure. FIG. 10 is a diagram showing an example of hardware configurations of gNB 100 and UE 200 according to the embodiment. The gNB 100 and UE 200 described above may physically be configured as a computer device including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, and the like.

In the following explanation, the term "apparatus" can be read as a circuit, device, unit, or the like. The hardware configuration of gNB 100 and UE 200 may be configured to include one or more of each device shown in the figure, or may be configured without some devices.

Each function of the gNB 100 and the UE 200 is performed by loading predetermined software (programs) on hardware such as the processor 1001 and the memory 1002. The processor 1001 performs calculations, controls communication by the communication device 1004, and by controlling at least one of reading and writing of data in the storage 1003 .

The processor 1001, for example, operates an operating system and controls the entire computer. The processor 1001 may be configured by a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic device, registers, and the like. For example, the

control units

103 and 203 described above may be implemented by the processor 1001 .

Also, the processor 1001 reads programs (program codes), software modules, data, etc. from at least one of the storage 1003 and the communication device 1004 to the memory 1002, and executes various processes according to them. As the program, a program that causes a computer to execute at least part of the operations described in the above embodiments is used. For example, the control unit 103 of the gNB 100, the control unit 203 of the UE 200, etc. may be implemented by a control program stored in the memory 1002 and operating on the processor 1001, and other functional blocks may be implemented in the same way. Although it has been explained that the above-described various processes are executed by one processor 1001, they may be executed simultaneously or sequentially by two or more processors 1001. FIG. Processor 1001 may be implemented by one or more chips. Note that the program may be transmitted from a network via an electric communication line.

The memory 1002 is a computer-readable recording medium, and is composed of at least one of, for example, ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electrically Erasable Programmable ROM), and RAM (Random Access Memory). may be The memory 1002 may also be called a register, cache, main memory (main storage device), or the like. The memory 1002 can store executable programs (program code), software modules, etc. for implementing a wireless communication method according to an embodiment of the present disclosure.

The storage 1003 is a computer-readable recording medium, for example, an optical disk such as a CD-ROM (Compact Disc ROM), a hard disk drive, a flexible disk, a magneto-optical disk (for example, a compact disk, a digital versatile disk, a Blu-ray disk), smart card, flash memory (eg, card, stick, key drive), floppy disk, magnetic strip, and/or the like. Storage 1003 may also be called an auxiliary storage device. The storage medium described above may be, for example, a database, server, or other suitable medium including at least one of memory 1002 and storage 1003 .

The communication device 1004 is hardware (transmitting/receiving device) for communicating between computers via at least one of a wired network and a wireless network, and is also called a network device, a network controller, a network card, a communication module, or the like. The communication device 1004 includes a high-frequency switch, a duplexer, a filter, a frequency synthesizer, and the like, for example, to realize at least one of frequency division duplex (FDD) and time division duplex (TDD). may consist of For example, the transmitting unit 101, the receiving unit 102, the receiving unit 201, the transmitting unit 202, etc. described above may be implemented by the communication device 1004. FIG. Communication device 1004 may be implemented with physically or logically separate transmitter and receiver sections.

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

Each device such as the processor 1001 and the memory 1002 is connected by a bus 1007 for communicating information. The bus 1007 may be configured using a single bus, or may be configured using different buses between devices.

In addition, gNB100 and UE200 include hardware such as microprocessor, digital signal processor (DSP), ASIC (Application Specific Integrated Circuit), PLD (Programmable Logic Device), FPGA (Field Programmable Gate Array). may be configured, and a part or all of each functional block may be realized by the hardware. For example, processor 1001 may be implemented using at least one of these pieces of hardware.

A configuration example of the vehicle 2001 is shown in FIG. As shown in FIG. 11, a vehicle 2001 includes a drive unit 2002, a steering unit 2003, an accelerator pedal 2004, a brake pedal 2005, a shift lever 2006, front wheels 2007, rear wheels 2008, an axle 2009, an electronic control unit 2010, various sensors 2021 to 2029. , an information service unit 2012 and a communication module 2013 . Each aspect/embodiment described in the present disclosure may be applied to a communication device mounted on vehicle 2001, and may be applied to communication module 2013, for example.

The driving unit 2002 is configured by, for example, an engine, a motor, or a hybrid of the engine and the motor. The steering unit 2003 includes at least a steering wheel (also referred to as steering wheel), and is configured to steer at least one of the front wheels and the rear wheels based on the operation of the steering wheel operated by the user.

The electronic control unit 2010 is composed of a microprocessor 2031 , a memory (ROM, RAM) 2032 and a communication port (IO port) 2033 . Signals from various sensors 2021 to 2029 provided in the vehicle 2001 are input to the electronic control unit 2010 . The electronic control unit 2010 may also be called an ECU (Electronic Control Unit).

The signals from the various sensors 2021 to 2029 include the current signal from the current sensor 2021 that senses the current of the motor, the rotation speed signal of the front and rear wheels acquired by the rotation speed sensor 2022, and the front wheel acquired by the air pressure sensor 2023. and rear wheel air pressure signal, vehicle speed signal obtained by vehicle speed sensor 2024, acceleration signal obtained by acceleration sensor 2025, accelerator pedal depression amount signal obtained by accelerator pedal sensor 2029, brake pedal sensor 2026 obtained by There are a brake pedal depression amount signal, a shift lever operation signal acquired by the shift lever sensor 2027, and a detection signal for detecting obstacles, vehicles, pedestrians, etc. acquired by the object detection sensor 2028, and the like.

The information service unit 2012 includes various devices such as car navigation systems, audio systems, speakers, televisions, and radios for providing various types of information such as driving information, traffic information, and entertainment information, and one or more devices for controlling these devices. ECU. The information service unit 2012 uses information acquired from an external device via the communication module 2013 or the like to provide passengers of the vehicle 2001 with various multimedia information and multimedia services.

Driving support system unit 2030 includes millimeter wave radar, LiDAR (Light Detection and Ranging), camera, positioning locator (e.g., GNSS, etc.), map information (e.g., high-definition (HD) map, automatic driving vehicle (AV) map, etc. ), gyro systems (e.g., IMU (Inertial Measurement Unit), INS (Inertial Navigation System), etc.), AI (Artificial Intelligence) chips, AI processors, etc., to prevent accidents and reduce the driver's driving load. and one or more ECUs for controlling these devices. In addition, the driving support system unit 2030 transmits and receives various information via the communication module 2013, and realizes a driving support function or an automatic driving function.

The communication module 2013 can communicate with the microprocessor 2031 and components of the vehicle 2001 via communication ports. For example, the communication module 2013 communicates with the vehicle 2001 through the communication port 2033, the drive unit 2002, the steering unit 2003, the accelerator pedal 2004, the brake pedal 2005, the shift lever 2006, the front wheels 2007, the rear wheels 2008, the axle 2009, the electronic Data is transmitted and received between the microprocessor 2031 and memory (ROM, RAM) 2032 in the control unit 2010 and the sensors 2021-29.

The communication module 2013 is a communication device that can be controlled by the microprocessor 2031 of the electronic control unit 2010 and can communicate with an external device. For example, it transmits and receives various information to and from an external device via wireless communication. Communication module 2013 may be internal or external to electronic control unit 2010 . The external device may be, for example, a base station, a mobile station, or the like.

The communication module 2013 transmits the current signal from the current sensor input to the electronic control unit 2010 to an external device via wireless communication. In addition, the communication module 2013 receives the rotation speed signal of the front and rear wheels obtained by the rotation speed sensor 2022, the air pressure signal of the front and rear wheels obtained by the air pressure sensor 2023, and the vehicle speed sensor. 2024, an acceleration signal obtained by an acceleration sensor 2025, an accelerator pedal depression amount signal obtained by an accelerator pedal sensor 2029, a brake pedal depression amount signal obtained by a brake pedal sensor 2026, and a shift lever. A shift lever operation signal obtained by the sensor 2027 and a detection signal for detecting obstacles, vehicles, pedestrians, etc. obtained by the object detection sensor 2028 are also transmitted to an external device via wireless communication.

The communication module 2013 receives various information (traffic information, signal information, inter-vehicle information, etc.) transmitted from external devices, and displays it on the information service unit 2012 provided in the vehicle 2001 . Communication module 2013 also stores various information received from external devices in memory 2032 available to microprocessor 2031 . Based on the information stored in the memory 2032, the microprocessor 2031 controls the drive unit 2002, the steering unit 2003, the accelerator pedal 2004, the brake pedal 2005, the shift lever 2006, the front wheels 2007, the rear wheels 2008, and the axle 2009 provided in the vehicle 2001. , sensors 2021 to 2029 and the like may be controlled.

(Summary of embodiment)
As described above, according to the embodiment of the present disclosure, the information about the different first priorities (HP, LP) and second priorities (LP, HP) corresponding to the uplink control channel, and the uplink The number of first resource blocks (M^PUCCH_RB) set for the link control channel, the receiving unit 201 for receiving the payload size (O_HP_UCI, O_LP_UCI) of the first uplink control information having the first priority and the When the number of the first resource blocks (M^PUCCH_RB) is insufficient for the payload size (O_LP_UCI, O_HP_UCI) of the second uplink control information having the second priority, the first uplink control information is mapped. and a control unit 203 that determines the number of second resource blocks (M^PUCCH_RB, M^PUCCH_RB,min, M^HP_PUCCH_RB,min, M^LP_PUCCH_RB,min) of the resource blocks of the uplink control channel. is provided.

With the above configuration, in the terminal 200, when the number of resource blocks configured for the uplink control channel is insufficient for the payload size of the first uplink control information and the payload size of the second uplink control information, Of the first uplink control information and the second uplink control information having different priorities, the number of resource blocks used for transmitting at least the first uplink control information can be appropriately determined.

In this terminal, the control section 203 determines the number of the second resource blocks to be the number of the first resource blocks (M^PUCCH_RB).

With the above configuration, the number of resource blocks set for transmitting the first uplink control information is used in the terminal 200, so it is possible to avoid performing calculations for determining the number of resource blocks separately. , which may simplify operation and implementation of terminal 200 .

In this terminal, the control section 203 determines the minimum number of second resource blocks (M^HP_PUCCH_RB, min, M^LP_PUCCH_RB, min) based on the payload size (O_HP_UCI, O_LP_UCI) of the first uplink control information. ), and a part of the second uplink control information (O^part_LP_UCI, O^part_HP_UCI) is changed from the first resource block number (M^PUCCH_RB) to the second resource block number (M^HP_PUCCH_RB, min , M^LP_PUCCH_RB, min) are mapped to resource blocks.

With the above configuration, in terminal 200, all of the first uplink control information and part of the second uplink control information are transmitted without using resource blocks other than the set number of resource blocks. It is possible to improve the usage efficiency and shorten the delay of the first uplink control information and the second uplink control information.

In this terminal, the control section 203 determines the minimum number of second resource blocks (M^HP_PUCCH_RB, min, M^LP_PUCCH_RB, min) based on the payload size (O_HP_UCI, O_LP_UCI) of the first uplink control information. ), code rate (r'_LP_UCI, r'_HP_UCI) adjustment is performed on the second uplink control information, and the code rate adjusted second uplink control information is transferred to the first resource block. Mapped to the number of resource blocks obtained by subtracting the number of second resource blocks (M^HP_PUCCH_RB, min, M^LP_PUCCH_RB, min) from the number (M^PUCCH_RB).

With the above configuration, in terminal 200, the first uplink control information and the second uplink control information are transmitted without using resource blocks other than the set number of resource blocks, thereby improving resource usage efficiency. is possible, and it is possible to shorten the delay of the first uplink control information and the second uplink control information.

In this terminal, the control section 203 determines the minimum number of second resource blocks (M^HP_PUCCH_RB, min, M^LP_PUCCH_RB, min) based on the payload size (O_HP_UCI, O_LP_UCI) of the first uplink control information. ), bundle the second uplink control information, and obtain the bundled second uplink control information (O^part_LP_UCI, O^part_HP_UCI) from the number of the first resource blocks (M^PUCCH_RB) The second resource block number (M^HP_PUCCH_RB, min, M^LP_PUCCH_RB, min) is subtracted from the number of resource blocks to be mapped.

Further, according to the embodiment of the present disclosure, the terminal provides information on different first priorities (HP, LP) and second priorities (LP, HP) corresponding to uplink control channels, and the uplink receive the configured first resource block number (M^PUCCH_RB) of the control channel, and receive the payload size (O_HP_UCI, O_LP_UCI) of the first uplink control information having the first priority and the second priority; When the number of the first resource blocks (M^PUCCH_RB) is insufficient for the payload size (O_LP_UCI, O_HP_UCI) of the second uplink control information, the uplink mapping the first uplink control information A communication control method is provided for determining a second number of resource blocks (M^PUCCH_RB, M^PUCCH_RB,min, M^HP_PUCCH_RB,min, M^LP_PUCCH_RB,min) of resource blocks of a control channel.

(Supplement to the embodiment)
Although the embodiments of the present disclosure have been described above, the disclosed invention is not limited to such embodiments, and those skilled in the art can understand various modifications, modifications, alternatives, replacements, and the like. be. Although specific numerical examples have been used to facilitate understanding of the invention, these numerical values are merely examples and any appropriate values may be used unless otherwise specified. The division of items in the above description is not essential to the present disclosure, and the items described in two or more items may be used in combination as necessary, and the items described in one item may be may apply (unless inconsistent) to the matters set forth in Boundaries of functional or processing units in functional block diagrams do not necessarily correspond to boundaries of physical components. The operations of a plurality of functional units may be physically performed by one component, or the operations of one functional unit may be physically performed by a plurality of components. As for the processing procedures described in the embodiments, the processing order may be changed as long as there is no contradiction. For convenience of explanation of processing, base station 100 and terminal 200 are explained using functional block diagrams, but such devices may be implemented in hardware, software, or a combination thereof. The software operated by the processor of the base station 100 according to the embodiment of the present disclosure and the software operated by the processor of the terminal 200 according to the embodiment of the present disclosure are random access memory (RAM), flash memory, read-only memory, respectively. (ROM), EPROM, EEPROM, register, hard disk (HDD), removable disk, CD-ROM, database, server, or any other appropriate storage medium.

<Notification of information, signaling>
Notification of information is not limited to the embodiments described in the present disclosure, and may be performed using other methods. For example, notification of information includes physical layer signaling (e.g., DCI (Downlink Control Information), UCI (Uplink Control Information)), higher layer signaling (e.g., RRC (Radio Resource Control) signaling, MAC (Medium Access Control) signaling, It may be implemented by broadcast information (MIB (Master Information Block), SIB (System Information Block)), other signals, or a combination thereof. RRC signaling may also be called an RRC message, and may be, for example, an RRC connection setup message, an RRC connection reconfiguration message, or the like.

<Applicable system>
Embodiments described in the present disclosure are LTE (Long Term Evolution), LTE-A (LTE-Advanced), SUPER 3G, IMT-Advanced, 4G (4th generation mobile communication system), 5G (5th generation mobile communication system) , FRA (Future Radio Access), NR (new Radio), W-CDMA (registered trademark), GSM (registered trademark), CDMA2000, UMB (Ultra Mobile Broadband), IEEE 802.11 (Wi-Fi (registered trademark)) , IEEE 802.16 (WiMAX®), IEEE 802.20, UWB (Ultra-WideBand), Bluetooth®, other suitable systems and next generations based on these It may be applied to at least one of the systems. Also, a plurality of systems may be applied in combination (for example, a combination of at least one of LTE and LTE-A and 5G, etc.).

<Processing procedure, etc.>
The processing procedures, sequences, flowcharts, etc. of each aspect/embodiment described in this disclosure may be rearranged as long as there is no contradiction. For example, the methods described in this disclosure present elements of the various steps using a sample order, and are not limited to the specific order presented.

<Base station operation>
Certain operations that are described in this disclosure as being performed by a base station may also be performed by its upper node in some cases. In a network consisting of one or more network nodes with a base station, various operations performed for communication with a terminal may be performed by the base station and other network nodes other than the base station (e.g. MME or S-GW, etc. (including but not limited to). Although the case where there is one network node other than the base station is exemplified above, it may be a combination of a plurality of other network nodes (for example, MME and S-GW).

<Direction of input/output>
Information and the like (see the item <information, signal>) can be output from a higher layer (or a lower layer) to a lower layer (or a higher layer). It may be input and output via multiple network nodes.

<Handling of input/output information, etc.>
Input/output information and the like may be stored in a specific location (for example, memory), or may be managed using a management table. Input/output information and the like can be overwritten, updated, or appended. The output information and the like may be deleted. The entered information and the like may be transmitted to another device.

<Determination method>
The determination may be made by a value represented by one bit (0 or 1), by a true/false value (Boolean: true or false), or by numerical comparison (for example, a predetermined value).

<Variation of mode, etc.>
Each aspect/embodiment described in the present disclosure may be used alone, may be used in combination, or may be used by switching according to execution. In addition, the notification of predetermined information (for example, notification of “being X”) is not limited to being performed explicitly, but may be performed implicitly (for example, not notifying the predetermined information). good too.

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 in the present disclosure. The present disclosure can be practiced with modifications and variations without departing from the spirit and scope of the present disclosure as defined by the claims. Accordingly, the description of the present disclosure is for illustrative purposes and is not meant to be limiting in any way.

<Software>
Software, whether referred to as software, firmware, middleware, microcode, hardware description language or otherwise, includes instructions, instruction sets, code, code segments, program code, programs, subprograms, and software modules. , applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, functions, and the like.

In addition, software, instructions, information, etc. may be transmitted and received via a transmission medium. For example, the software may use wired technology (coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), etc.) and/or wireless technology (infrared, microwave, etc.) to access websites, Wired and/or wireless technologies are included within the definition of transmission medium when sent from a server or other remote source.

<Information, signal>
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 refer to voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any of these. may be represented by a combination of

The 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, the channel and/or symbols may be signaling. A signal may also be a message. A component carrier (CC) may also be referred to as a carrier frequency, cell, frequency carrier, or the like.

<System, Network>
As used in this disclosure, the terms "system" and "network" are used interchangeably.

<Name of parameter and channel>
In addition, 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. may be represented. For example, radio resources may be indexed.

The names used for the parameters described above are not restrictive names in any respect. Further, the formulas, etc., using these parameters may differ from those expressly disclosed in this disclosure. Since the various channels (e.g., PUCCH, PDCCH, etc.) and information elements can be identified by any suitable name, the various names assigned to these various channels and information elements are in no way restrictive names. isn't it.

<Base station>
In the present disclosure, "base station (BS)", "radio base station", "fixed station", "NodeB", "eNodeB (eNB)", "gNodeB (gNB)", ""accesspoint","transmissionpoint","receptionpoint","transmission/receptionpoint","cell","sector","cellgroup"," Terms such as "carrier", "component carrier" may be used interchangeably. A base station may also be referred to by terms such as macrocell, small cell, femtocell, picocell, and the like.

A base station can accommodate one or more (eg, three) cells. When a base station accommodates multiple cells, the overall coverage area of the base station can be partitioned into multiple smaller areas, each smaller area being associated with a base station subsystem (e.g., an indoor small base station (RRH: The term "cell" or "sector" refers to part or all of the coverage area of at least one of the base stations and base station subsystems serving communication services in this coverage. point to

<Mobile station>
In this disclosure, terms such as “Mobile Station (MS),” “user terminal,” “User Equipment (UE),” “terminal,” etc. may be used interchangeably. .

A mobile station is defined 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 It may also be called a terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable term.

<Base station/mobile station>
At least one of a base station and a mobile station may be called a transmitter, a receiver, a communication device, and the like. At least one of the base station and the mobile station may be a device mounted on a mobile object, the mobile object itself, or the like. The mobile object may be a vehicle (e.g., car, airplane, etc.), an unmanned mobile object (e.g., drone, self-driving car, etc.), or a robot (manned or unmanned ). Note that at least one of the base station and the mobile station includes 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 IoT (Internet of Things) device such as a sensor.

Also, the base station in the present disclosure may be read as a user terminal. For example, communication between a base station and a user terminal is replaced with communication between multiple user terminals (for example, D2D (Device-to-Device), V2X (Vehicle-to-Everything), etc.) The embodiment of the present disclosure may be applied to the configuration. In this case, the UE 200 may have the functions of the gNB 100 described above. Also, words such as "up" and "down" may be replaced with words corresponding to inter-terminal communication (for example, "side"). For example, uplink channels, downlink channels, etc. may be read as side channels.

Similarly, user terminals in the present disclosure may be read as base stations. In this case, the gNB 100 may have the functions that the UE 200 described above has.

<Meaning and Interpretation of Terms>
As used in this disclosure, the terms "determining" and "determining" may encompass a wide variety of actions. "Judgement", "determining" are, for example, judging, calculating, computing, processing, deriving, investigating, looking up, searching, inquiring (eg, lookup in a table, database, or other data structure), ascertaining as "judged" or "determined", and the like. Also, "judgment" and "decision" are used for receiving (e.g., receiving information), transmitting (e.g., transmitting information), input, output, access (accessing) (for example, accessing data in memory) may include deeming that something has been "determined" or "decided". In addition, "judgment" and "decision" are considered to be "judgment" and "decision" by resolving, selecting, choosing, establishing, comparing, etc. can contain. In other words, "judgment" and "decision" may include considering that some action is "judgment" and "decision". Also, "judgment (decision)" may be read as "assuming", "expecting", "considering", or the like.

The terms "connected," "coupled," or any variation thereof mean any direct or indirect connection or connection between two or more elements, It can include the presence of one or more intermediate elements between two elements being "connected" or "coupled." Couplings or connections between elements may be physical, logical, or a combination thereof. For example, "connection" may be read as "access". As used in this disclosure, two elements are defined using at least one of one or more wires, cables, and printed electrical connections and, as some non-limiting and non-exhaustive examples, in the radio frequency domain. , electromagnetic energy having wavelengths in the microwave and optical (both visible and invisible) regions, and the like.

<Reference signal>
The reference signal may be abbreviated as RS (Reference Signal), or may be referred to as Pilot according to the applicable standard.

<Meaning of "based on">
As used in this disclosure, the phrase "based on" does not mean "based only on," unless expressly specified otherwise. In other words, the phrase "based on" means both "based only on" and "based at least on."

<“First”, “Second”>
Any reference to elements using the "first,""second," etc. designations used in this disclosure 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, reference to a first and second element does not imply that only two elements can be employed or that the first element must precede the second element in any way.

<Means>
The “means” in the configuration of each device described above may be replaced with “unit”, “circuit”, “device”, or the like.

<Open format>
Where "include,""including," and variations thereof are used in this disclosure, these terms are inclusive, as is the term "comprising." is intended. Furthermore, the term "or" as used in this disclosure is not intended to be an exclusive OR.

<Time unit such as TTI, frequency unit such as RB, radio frame configuration>
A radio frame may consist of one or more frames in the time domain. Each frame or frames in the time domain may be referred to as a subframe. A subframe may also consist of one or more slots in the time domain. A subframe may be a fixed time length (eg, 1 ms) independent of numerology.

A numerology may be a communication parameter that applies to the transmission and/or reception of a signal or channel. Numerology, for example, subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), number of symbols per TTI, radio frame structure, transmission and reception specific filtering operations performed by the receiver in the frequency domain, specific windowing operations performed by the transceiver in the time domain, and/or the like.

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

A slot may contain multiple mini-slots. Each minislot may consist of one or more symbols in the time domain. A minislot may also be referred to as a subslot. A minislot may consist of fewer symbols than a slot. PDSCH (or PUSCH) transmitted in time units larger than minislots may be referred to as PDSCH (or PUSCH) mapping type A. PDSCH (or PUSCH) transmitted using minislots may be referred to as PDSCH (or PUSCH) mapping type B.

Radio frames, subframes, slots, minislots and symbols all represent time units when transmitting signals. Radio frames, subframes, slots, minislots and symbols may be referred to by other corresponding designations.

For example, one subframe may be called a Transmission Time Interval (TTI), multiple consecutive subframes may be called a TTI, and one slot or minislot may be called a TTI. may That is, at least one of the subframe and TTI may be a subframe (1 ms) in existing LTE, a period shorter than 1 ms (eg, 1-13 symbols), or a period longer than 1 ms may be Note that the unit representing the TTI may be called a slot, mini-slot, or the like instead of a subframe.

Here, TTI refers to, for example, the minimum scheduling time unit in wireless communication. For example, in the LTE system, a base station performs scheduling to allocate radio resources (frequency bandwidth, transmission power, etc. that can be used by each user terminal) to each user terminal on a TTI basis. Note that the definition of TTI is not limited to this.

A TTI may be a transmission time unit such as a channel-encoded data packet (transport block), code block, or codeword, or may be a processing unit such as scheduling and link adaptation. Note that when a TTI is given, the time interval (for example, the number of symbols) in which transport blocks, code blocks, codewords, etc. are actually mapped may be shorter than the TTI.

When one slot or one minislot is called a TTI, one or more TTIs (that is, one or more slots or one or more minislots) may be the minimum scheduling time unit. Also, the number of slots (the number of mini-slots) constituting the minimum time unit of the scheduling may be controlled.

A TTI having a time length of 1 ms may be called a normal TTI (TTI in LTE Rel. 8-12), normal TTI, long TTI, normal subframe, normal subframe, long subframe, slot, or the like. A TTI that is shorter than a regular TTI may also be called a shortened TTI, a short TTI, a partial or fractional TTI, a shortened subframe, a short subframe, a minislot, a subslot, a slot, and so on.

Note that the long TTI (e.g., normal TTI, subframe, etc.) may be replaced with a TTI having a time length exceeding 1 ms, and the short TTI (e.g., shortened TTI, etc.) is less than the TTI length of the long TTI and 1 ms A TTI having the above TTI length may be read instead.

A resource block (RB) is a resource allocation unit in the time domain and the frequency domain, and may include one or more consecutive subcarriers in the frequency domain. The number of subcarriers included in the RB may be the same regardless of the neumerology, eg twelve. The number of subcarriers included in an RB may be determined based on neumerology.

Also, the time domain of an RB may include one or more symbols and may be 1 slot, 1 minislot, 1 subframe, or 1 TTI long. One TTI, one subframe, etc. may each consist of one or more resource blocks.

One or more RBs are physical resource blocks (PRBs), sub-carrier groups (SCGs), resource element groups (REGs), PRB pairs, RB pairs, etc. may be called.

Also, a resource block may be composed of one or more resource elements (RE: Resource Element). For example, 1 RE may be a radio resource region of 1 subcarrier and 1 symbol.

A bandwidth part (BWP) (which may also be called a bandwidth part) represents a subset of contiguous common resource blocks (RBs) for a numerology on a carrier. good. Here, the common RB may be identified by an RB index based on the common reference point of the carrier. PRBs may be defined in a BWP and numbered within that BWP.

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

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 "cell", "carrier", etc. in the present disclosure may be read as "BWP".

The structures such as radio frames, subframes, slots, minislots and symbols described above are only examples. For example, the number of subframes contained in a radio frame, the number of slots per subframe or radio frame, the number of minislots contained within a slot, the number of symbols and RBs contained in a slot or minislot, the number of Configurations such as the number of subcarriers and the number of symbols in a TTI, symbol length, cyclic prefix (CP) length, etc. can be varied.

<Maximum transmission power>
“Maximum transmit power” as described in this disclosure may mean the maximum value of transmit power, may mean the nominal UE maximum transmit power, or may refer to the rated maximum transmit power ( the rated UE maximum transmit power).

<article>
In this disclosure, where articles have been added by translation, such as a, an, and the in English, the disclosure may include the plural nouns following these articles.

<"Different">
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 that "A and B are different from C". Terms such as "separate,""coupled," etc. may also be interpreted in the same manner as "different."

The present disclosure is useful for wireless communication systems.

10 Radio communication system 20 NG-RAN
100 gNB
200UE
101, 202

transmitter

102, 201

receiver

103, 203 controller 1001 processor 1002 memory 1003 storage 1004 communication device 1005 input device 1006 output device 1007 bus

Claims

a receiving unit that receives information on a first priority and a second priority that are different from each other corresponding to an uplink control channel and the number of first resource blocks that are set for the uplink control channel;
If the first resource block number is insufficient with respect to the payload size of the first uplink control information having the first priority and the payload size of the second uplink control information having the second priority, the a control unit that determines the number of second resource blocks of the resource blocks of the uplink control channel to which the first uplink control information is mapped;
terminal with
The control unit determines the number of the second resource blocks to the number of the first resource blocks,
A terminal according to claim 1 .
The control unit
Based on the payload size of the first uplink control information, determine the minimum number of second resource blocks,
A part of the second uplink control information is mapped to a number of resource blocks obtained by subtracting the number of the second resource blocks from the number of the first resource blocks.
A terminal according to claim 1 .
The control unit
Based on the payload size of the first uplink control information, determine the minimum number of second resource blocks,
Code rate adjustment is performed on the second uplink control information, and the code rate adjusted second uplink control information is obtained by subtracting the number of the second resource blocks from the number of the first resource blocks. mapping to blocks,
A terminal according to claim 1 .
The control unit
Based on the payload size of the first uplink control information, determine the minimum number of second resource blocks,
The second uplink control information is bundled, and the bundled second uplink control information is mapped to a number of resource blocks obtained by subtracting the number of the second resource blocks from the number of the first resource blocks.
A terminal according to claim 1 .
the terminal
receiving information about different first and second priorities corresponding to an uplink control channel and the number of first resource blocks configured for the uplink control channel;
If the first resource block number is insufficient with respect to the payload size of the first uplink control information having the first priority and the payload size of the second uplink control information having the second priority, the mapping the first uplink control information, determining the number of second resource blocks of the resource blocks of the uplink control channel;
Communication control method.