WO2022118481A1

WO2022118481A1 - Terminal and communication method

Info

Publication number: WO2022118481A1
Application number: PCT/JP2020/045350
Authority: WO
Inventors: 翔平吉岡; 慎也熊谷; 聡永田
Original assignee: 株式会社Ｎｔｔドコモ
Priority date: 2020-12-04
Filing date: 2020-12-04
Publication date: 2022-06-09

Abstract

This terminal comprises: a control unit that detects overlaps between multiple channels including at least one physical uplink shared channel and at least one physical uplink control channel and that, if a particular condition is satisfied, uses a particular method to solve the overlaps and then determines which one of the multiple channels should be transmitted; and a transmission unit that transmits, to a base station, the channel the transmission of which has been determined.

Description

Terminal and communication method

The present invention relates to a terminal and a communication method in a wireless communication system.

In 3GPP (3rd Generation Partnership Project), 5G or NR (New Radio) is used to realize further increase in system capacity, further increase in data transmission speed, and further reduction in delay in wireless sections. Studies on a so-called wireless communication method (hereinafter, the wireless communication method is referred to as "NR") are in progress. In 5G, various radio techniques and network architectures have been studied in order to satisfy the requirement that the delay of the radio section be 1 ms or less while achieving a throughput of 10 Gbps or more (for example, Non-Patent Document 1).

In NR, when scheduling PUSCH (Physical Uplink Shared Channel), there is a type 1 set in the upper layer and a type 2 set in the upper layer and activated in the lower layer. ) And a dynamic grant (DG) are specified (for example, Non-Patent Document 2). Further, the PUSCH transmission supports repetition (for example, Non-Patent Document 3).

One or more PUSCHs scheduled by a configured grant or dynamic grant, a repeatedly transmitted PUSCH or a PUSCH with a priority set on a physical or logical channel, and a PUCCH (Physical Uplink Control Channel) at least time. When overlapping in the domain, there are cases where the priority of the uplink channel or the operation for resolving the overlap is not specified.

The present invention has been made in view of the above points, and an object thereof is to determine an uplink channel to be transmitted when the uplink channels overlap in the time domain.

According to the disclosed technique, overlap between a plurality of channels including at least one physical uplink shared channel and at least one physical uplink control channel is detected, and if a specific condition is satisfied, the above-mentioned method is used. A terminal is provided having a control unit that resolves the overlap and determines which of the plurality of channels is to be transmitted, and a transmission unit that transmits the channel determined to be transmitted to the base station.

According to the disclosed technique, when the uplink channels overlap in the time domain, a technique capable of determining the uplink channel to be transmitted is provided.

It is a figure for demonstrating the example (1) of the wireless communication system in embodiment of this invention. It is a figure for demonstrating the example (2) of the wireless communication system in embodiment of this invention. It is a figure which shows the example (1) in which UL channels overlap. It is a figure which shows the example (2) that UL channels overlap. It is a figure which shows the example (3) in which UL channels overlap. It is a figure which shows the example (4) which UL channels overlap. It is a figure which shows the example (5) which UL channels overlap. It is a figure which shows the example (1) of UL transmission in embodiment of this invention. It is a figure which shows the example (2) of UL transmission in embodiment of this invention. It is a figure which shows the example (3) of UL transmission in embodiment of this invention. It is a figure which shows the example (4) of UL transmission in embodiment of this invention. It is a figure which shows the example (5) of UL transmission in embodiment of this invention. It is a figure which shows the example (6) of UL transmission in embodiment of this invention. It is a figure which shows the example (7) of UL transmission in embodiment of this invention. It is a figure which shows the example (8) of UL transmission in embodiment of this invention. It is a flowchart for demonstrating the example (1) of UL transmission in embodiment of this invention. It is a flowchart for demonstrating the example (2) of UL transmission in embodiment of this invention. It is a flowchart for demonstrating the example (3) of UL transmission in embodiment of this invention. It is a figure which shows an example of the functional structure of the base station 10 in embodiment of this invention. It is a figure which shows an example of the functional structure of the terminal 20 in embodiment of this invention. It is a figure which shows an example of the hardware composition of the base station 10 or the terminal 20 in embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The embodiments described below are examples, and the embodiments to which the present invention is applied are not limited to the following embodiments.

The existing technique may be appropriately used in the operation of the wireless communication system according to the embodiment of the present invention. The existing technique is, for example, an existing NR or LTE, but is not limited to the existing NR or LTE.

FIG. 1 is a diagram for explaining an example (1) of a wireless communication system according to an embodiment of the present invention. The wireless communication system according to the embodiment of the present invention includes a base station 10 and a terminal 20 as shown in FIG. Although FIG. 1 shows one base station 10 and one terminal 20, this is an example, and each of them may be plural.

The base station 10 is a communication device that provides one or more cells and performs wireless communication with the terminal 20. The physical resources of the radio signal are defined in the time domain and the frequency domain, the time domain may be defined by the number of OFDM symbols, and the frequency domain may be defined by the number of subcarriers or the number of resource blocks. Further, the TTI (Transmission Time Interval) in the time domain may be a slot, or the TTI may be a subframe.

The base station 10 can perform carrier aggregation that bundles a plurality of cells (a plurality of CCs (component carriers)) and communicates with the terminal 20. In carrier aggregation, one PCell (primary cell) and one or more SCells (secondary cells) are used.

The base station 10 transmits a synchronization signal, system information, and the like to the terminal 20. Synchronous signals are, for example, NR-PSS and NR-SSS. The system information is transmitted by, for example, NR-PBCH or PDSCH, and is also referred to as broadcast information. As shown in FIG. 1, the base station 10 transmits a control signal or data to the terminal 20 by DL (Downlink), and receives the control signal or data from the terminal 20 by UL (Uplink). Here, what is transmitted on a control channel such as PUCCH or PDCCH is called a control signal, and what is transmitted on a shared channel such as PUSCH or PDSCH is called data. Such a name is an example. Is.

The terminal 20 is a communication device having a wireless communication function such as a smartphone, a mobile phone, a tablet, a wearable terminal, and a communication module for M2M (Machine-to-Machine). As shown in FIG. 1, the terminal 20 receives a control signal or data from the base station 10 by DL, and transmits the control signal or data to the base station 10 by UL, so that various types provided by the wireless communication system are provided. Use communication services. The terminal 20 may be referred to as a UE, and the base station 10 may be referred to as a gNB.

The terminal 20 can perform carrier aggregation that bundles a plurality of cells (a plurality of CCs (component carriers)) and communicates with the base station 10. In carrier aggregation, one PCell (primary cell) and one or more SCells (secondary cells) are used. Moreover, PUCCH-S Cell having PUCCH may be used.

FIG. 2 is a diagram for explaining an example (2) of a wireless communication system according to an embodiment of the present invention. FIG. 2 shows a configuration example of a wireless communication system when DC (Dual connectivity) is executed. As shown in FIG. 2, a base station 10A serving as an MN (MasterNode) and a base station 10B serving as an SN (SecondaryNode) are provided. Base station 10A and base station 10B are each connected to the core network. The terminal 20 can communicate with both the base station 10A and the base station 10B.

The cell group provided by the MN base station 10A is called an MCG (Master Cell Group), and the cell group provided by the SN base station 10B is called an SCG (Secondary Cell Group). Further, in the DC, the MCG is composed of one PCell and one or more SCells, and the SCG is composed of one PSCell (Primary SCG Cell) and one or more SCells.

The processing operation in the present embodiment may be executed in the system configuration shown in FIG. 1, may be executed in the system configuration shown in FIG. 2, or may be executed in a system configuration other than these.

Here, in NR, when scheduling PUSCH (Physical Uplink Shared Channel), there is a type 1 set in the upper layer and a type 2 set in the upper layer and activated in the lower layer. CG) and a dynamic grant (DG) assigned by DCI (Downlink Control Information) in the physical layer are defined. When a plurality of UL channels overlap in the time domain, for example, the UL channel priority and the UL channel to which the control information is multiplexed are dropped based on the UL channel type and / or the control information type. UL channel and the like are determined.

FIG. 3 is a diagram showing an example (1) in which UL channels overlap. As shown in FIG. 3, when the PUCCH and the PUSCH overlap in the time domain, the terminal 20 may perform the operation shown in 1) -3) below. The operation shown in A1) -A3) may be executed when the repetition transmission (Repetition) is not applied to the PUCCH.

A1) When the UCI (Uplink Control Information) in the PUCCH is HARQ-ACK, the HARQ-ACK is multiplexed with the PUSCH as shown in FIG. 3, the PUCCH is dropped, and the PUSCH is transmitted.
A2) When the UCI in the PUCCH is CSI, if the PUSCH does not include the CSI, the CSI is multiplexed with the PUSCH as shown in FIG. 3, the PUCCH is dropped, and the PUSCH is transmitted. If the PUSCH contains CSI, the PUCCH is dropped and the PUSCH is transmitted without multiplexing.
A3) When the UCI in the PUCCH is SR, if the PUSCH does not include the UL-SCH (Uplink Shared Channel), the PUSCH is dropped and the PUCCH is transmitted. When UL-SCH is included in PUSCH, processing is performed in the MAC (Media Access Control) layer. In the MAC layer, if the priority processing of the logical channel is not set, PUSCH (UL-SCH) is prioritized and PUCCH (SR) is dropped. When the priority processing of the logical channel is set, the PUSCH is not the PUSCH associated with the random access response, is not the PUSCH of the message A in the two-step random access, and the logical channel related to SR is UL-. If the priority is higher than the priority related to SCH, PUCCH (SR) is given priority and PUSCH (UL-SCH) is dropped. In other cases, PUSCH (UL-SCH) is given priority and PUCCH (SR). To drop.

FIG. 4 is a diagram showing an example (2) in which UL channels overlap. As shown in FIG. 4, when the PUCCH and the N PUSCHs overlap in the time domain, which PUSCH the operation shown in the above A1) -A3) is applied is hereinafter A'1)-. The terminal 20 may be determined by the rule shown in A'4). The rule is applied in both cases of CA (Carrier Aggregation) and non-CA. In the case of CA, the processing for overlap is limited to CCs of the same PUCCH group. That is, it is assumed that the PUCCH and the N PUSCHs are in the same PUCCH group CC.

A'1) Of the N PUSCHs, if there is a PUSCH set to transmit an aperiodic CSI (hereinafter, also referred to as "A-CSI"), the PUSCH
A'2) If there is 1 or more M ₁ DG (Dynamic grant) -PUSCH and 1 or more M ₂ CG (Configured grant) -PUSCH, any one of M ₁ DG-PUSCH A ′ 3) If there are N PUSCHs across multiple serving cells, one or more M ₃ PUSCHs in the cell with the smallest serving cell ID A ′ 4) 1 or more M ₄ PUSCHs in the same serving cell Among them, PUSCH with the earliest start symbol

That is, in the example of FIG. 4, according to A'1), the priority of the DG-PUSCH set to transmit the A-CSI in CC1 is the highest 1. According to A'3), the priority of DG-PUSCH in CC0 becomes 2. According to A'4), the priority of the preceding DG-PUSCH in CC2 is 3, and the priority of the following DG-PUSCH is 4. The priority of CG-PUSCH is 5.

Further, when the PUSCH resource is allocated but there is no data to be transmitted, the terminal 20 may perform the operation shown in B1) -B2) below.

B1) In the case of CG-PUSCH, the MAC PDU contains zero MAC SDU (SDU does not exist), and the MAC PDU contains only periodic BSR (Buffer Status Report), and there is no logical channel data or padding. If only BSR is included, PUSCH transmission may be skipped. PUSCH transmission can be skipped regardless of the settings from the network.

B2) In the case of DG-PUSCH, the parameter skipUplinkTxDynamic is set to true and it is a PUSCH corresponding to C-RNTI (Cell Radio Network Temporary Identifier), and the MAC PDU includes zero MAC SDU (SDU does not exist). Moreover, when the MAC PDU contains only the periodic BSR (Buffer Status Report) and there is no data of the logical channel or contains only the padding BSR, the PUSCH transmission may be skipped. In cases other than the above, PUSCH transmission cannot be skipped. That is, the terminal 20 generates and transmits an empty MAC PDU.

Further, when the PUSCH resource is allocated but there is no data to be transmitted and the PUSCH and the PUCCH overlap in the time domain, the terminal 20 may perform the operation shown in C0) -C2) below.

C0) The operation may be determined depending on the implementation of the terminal 20. That is, when the case occurs, the base station 10 needs to perform blind decoding. Alternatively, the base station 10 schedules so that the case does not occur.

C1) In the case of DG-PUSCH, it is assumed that all PUSCHs are transmitted, and the terminal 20 determines to which PUSCH the UCI is to be multiplexed. The terminal 20 cannot skip the PUSCH determined to multiplex the UCI, and always transmits it. The MAC layer generates a MAC PDU for the PUSCH determined to multiplex the UCI. In C1), there is no prioritization of LCH, and a single PHY priority is assumed. It may be assumed that there is no PUSCH repeated transmission.

C2) In the case of CG-PUSCH, it is assumed that all PUSCHs are transmitted, and the terminal 20 determines to which PUSCH the UCI is to be multiplexed. The terminal 20 cannot skip the PUSCH determined to multiplex the UCI, and always transmits it. The MAC layer generates a MAC PDU for the PUSCH determined to multiplex the UCI. In C2), there is no prioritization of LCH, and it is assumed that there is no single PHY priority and no PUSCH repeated transmission.

Further, with respect to the repeatedly transmitted PUSCH, the terminal 20 may perform the operation shown in D1) or D2) below.

D1) In the case of DG-PUSCH, transmission is started from the beginning of the repeated transmission opportunity. Do not start transmission in the middle of repeated transmission opportunities.

D2) In the case of CG-PUSCH, when the parameter "startingFromRV0-r16" at the time of grant is set to "off", transmission is started from the beginning of the repeated transmission opportunity. Do not start transmission in the middle of repeated transmission opportunities. In other cases, for example, when "startingFromRV0-r16" is set to "on", transmission can be started from the repeated transmission opportunity associated with RV (RedundancyVersion) = 0. For example, when the RV sequence is {0,2,3,1}, transmission can be started from the beginning of the repeated transmission opportunity. Further, for example, when the RV sequence is {0,3,0,3}, transmission can be started from the odd-numbered number of repeated transmission opportunities, for example, the beginning and the third. Further, for example, when the RV sequence is {0,0,0,0}, transmission can be started from any transmission opportunity of the repeated transmission opportunity. However, if the repeated transmission opportunity is 8 or more, transmission cannot be started at the last transmission opportunity.

Further, when the repeatedly transmitted PUSCH and PUCCH overlap, the terminal 20 may perform the operation shown in E) below.

E) If the PUCCH of a single slot overlaps the transmission opportunity of the repeatedly transmitted PUSCH, the UCI is multiplexed only at the transmission opportunity. The operations shown in A1) -A3) and A'1) -A'4) may be applied.

Further, when the priority is set for the logical channel (LCH), the terminal 20 may perform the operation shown in F) below.

F) MAC priority is different When the two channels shown in 1) -4) overlap at least in the time domain, the channel with the higher MAC priority is preferentially used.

1) PUSCH corresponding to UL grant for CS-RNTI (Configured Scheduling RNTI) or C-RNTI with NDI (New Data Indicator) set to 1 and PUSCH corresponding to configured grant in the same BWP.
2) PUSCH corresponding to UL grant for CS-RNTI or C-RNTI with NDI set to 1 and PUCCH with SR
3) PUSCH corresponding to the configured grant and PUSCH corresponding to other configured grants in the same BWP
4) PUSCH corresponding to the set grant and PUCCH with SR

Further, when the priority (PHY priorities) in the physical layer is set, the terminal 20 may perform the operation shown in G) below.

G) Different priorities in the physical layer When the two channels shown in 1) -7) overlap at least in the time domain, the channel with the higher priority in the physical layer is preferentially used.

1) Higher priority PUSCH scheduled by DCI and all PUCCH or lower priority PUSCH
2) Higher priority PUSCH and lower priority PUCCH scheduled by DCI
3) Higher priority PUCCH with SR and all PUCCH or lower priority PUSCH
4) Higher priority CG-PUSCH and all lower priority PUCCH
5) Higher priority PUCCH with HARQ-ACK and lower priority PUCCH with SR and / or CSI in response to PDSCH reception without the corresponding PDCCH.
6) Higher priority PUSCH with SP-CSI without corresponding PDCCH and lower priority PUCCH with HARQ-ACK which is only a response to reception of SR, CSI or PDSCH without corresponding PDCCH.
7) Higher priority CG-PUSCH and lower priority CG-PUSCH in the same serving cell

When channels of the same priority overlap, the terminal 20 may perform the operation shown in H1) -H4) below.

H1) When a certain transmission opportunity among a plurality of transmission opportunities of the CG-PUSCH for which repeated transmission is set and the PUCCH overlap at least in the time domain, the terminal 20 can start the transmission of the CG-PUSCH. A PUSCH containing the UCI of the PUCCH may be transmitted regardless of the restrictions of.

(1-1)
When a transmission opportunity among a plurality of transmission opportunities of the CG-PUSCH for which repeated transmission is set and the PUCCH overlap at least in the time domain, the terminal 20 precedes the transmission opportunity overlapping with the PUCCH in terms of time. Even if the PUSCH is not transmitted at the transmission opportunity, the UCI of the PUCCH may be included (multiplexed) in the PUSCH of the transmission opportunity that overlaps with the PUCCH.

FIG. 5 is a diagram showing an example (3) in which UL channels overlap. FIG. 5 shows an example in which a transmission opportunity among a plurality of transmission opportunities of a CG-PUSCH for which repeated transmission is set overlaps with the PUCCH in the time domain. In the example of FIG. 5, four PUSCH transmission opportunities are set from the front in the time direction. The transmission opportunity of the second PUSCH from the front in the time domain overlaps with the PUCCH in the time domain. The terminal 20 does not transmit the PUSCH at the first transmission opportunity in terms of time among the four transmission opportunities shown in the example of FIG. The terminal 20 detects that the transmission opportunity of the second PUSCH from the front in the time domain overlaps with the PUCCH in the time domain among the four transmission opportunities shown in the example of FIG. 5, and sets the UCI of the PUCCH to 2. It may be included in the PUSCH of the second transmission opportunity and the PUSCH may be transmitted. After that, at the third and fourth transmission opportunities in the time direction, the terminal 20 does not have to transmit the PUSCH.

(1-2)
When a certain transmission opportunity among a plurality of transmission opportunities of the CG-PUSCH for which repeated transmission is set and the PUCCH overlap at least in the time domain, the terminal 20 sets the PUCCH in the PUSCH of the transmission opportunity that overlaps with the PUCCH. UCI may be included (multiplexed), in which case the MAC layer of the terminal 20 may generate a MAC PDU.

(1-3)
When a certain transmission opportunity among a plurality of transmission opportunities of the CG-PUSCH for which repeated transmission is set and the PUCCH overlap at least in a time region, the terminal 20 sets the PUCCH in the PUSCH of the transmission opportunity that overlaps with the PUCCH. UCI may be included (multiplexed), in which case the MAC layer of terminal 20 is a MAC PDU containing no data to transmit (eg, zero MAC Service Data Unit (SDU), periodic). A MAC PDU containing only a Buffer Status Report (BSR) and no data available in the logical channel group, or a MAC PDU containing only a padding BSR) may generate a MAC PDU. .. In this case, the terminal 20 may set the RV to the RV corresponding to the transmission opportunity of the PUSCH overlapping in the time domain with the PUCCH. Alternatively, the terminal 20 may set the RV to 0 regardless of the transmission opportunity of the PUSCH that overlaps with the PUCCH in the time domain.

(1-4)
When a certain transmission opportunity among a plurality of transmission opportunities of the CG-PUSCH for which repeated transmission is set and the PUCCH overlap at least in the time domain, the terminal 20 sets the PUCCH in the PUSCH of the transmission opportunity that overlaps with the PUCCH. The UCI may be included (multiplexed), and in this case, the MAC layer of the terminal 20 may generate a MAC PDU even when there is no data to be transmitted. In this case, the terminal 20 includes the same MAC PDU as the MAC PDU included in the PUSCH of the transmission opportunity overlapping with the PUCCH in the transmission opportunity of the PUSCH after the transmission opportunity of the PUSCH overlapping with the PUCCH (MAC PDU). You may send the PUSCH (with). Alternatively, the terminal 20 may transmit the PUSCH including any MAC PDU (with an arbitrary MAC PDU) at the transmission opportunity of the PUSCH after the transmission opportunity of the PUSCH overlapping with the PUCCH. .. Alternatively, the terminal 20 does not have to transmit the PUSCH at the PUSCH transmission opportunity after the PUSCH transmission opportunity that overlaps with the PUCCH.

H2) When a certain transmission opportunity among a plurality of transmission opportunities of the CG-PUSCH for which repeated transmission is set and the PUCCH overlap at least in the time domain, the terminal 20 can start the transmission of the CG-PUSCH. It may be determined whether or not it is possible to include the UCI of the PUCCH in the PUSCH of the transmission opportunity overlapping with the PUCCH based on the constraint of.

(2-1)
In the case where a certain transmission opportunity among a plurality of transmission opportunities of the CG-PUSCH for which repeated transmission is set and the PUCCH overlap at least in the time domain, there is a restriction on the transmission opportunity that can start the transmission of the CG-PUSCH. Based on this, when the terminal 20 determines that it is possible to start the transmission of the CG-PUSCH at the transmission opportunity of the PUSCH overlapping with the PUCCH, the terminal 20 is more than the transmission opportunity overlapping with the PUCCH. Even if the PUSCH is not transmitted in the previous transmission opportunity in terms of time, the UCI of the PUCCH may be included (multiplexed) in the PUSCH of the transmission opportunity that overlaps with the PUCCH.

(2-1-2)
In the case of (2-1) above, the MAC layer of the terminal 20 may generate a MAC PDU.

(2-1-3)
In the case of (2-1) above, the MAC layer of the terminal 20 only receives a MAC PDU including zero MAC Service Data Unit (SDU) and a periodic Buffer Status Report (BSR) when there is no data to be transmitted. MAC PDUs that include MAC PDUs that do not have data available in the logical channel group, or MAC PDUs that contain only padding BSRs) may also generate MAC PDUs. In this case, the terminal 20 may set the RV to the RV corresponding to the transmission opportunity of the PUSCH overlapping in the time domain with the PUCCH. Alternatively, the terminal 20 may set the RV to 0 regardless of the transmission opportunity of the PUSCH that overlaps with the PUCCH in the time domain.

(2-1-4)
In the case of (2-1) above, the MAC layer of the terminal 20 may generate a MAC PDU even when there is no data to be transmitted. In this case, the terminal 20 includes the same MAC PDU as the MAC PDU included in the PUSCH of the transmission opportunity overlapping with the PUCCH in the transmission opportunity of the PUSCH after the transmission opportunity of the PUSCH overlapping with the PUCCH (MAC PDU). You may send the PUSCH (with). Alternatively, the terminal 20 may transmit the PUSCH including any MAC PDU (with an arbitrary MAC PDU) at the transmission opportunity of the PUSCH after the transmission opportunity of the PUSCH overlapping with the PUCCH. .. Alternatively, the terminal 20 does not have to transmit the PUSCH at the PUSCH transmission opportunity after the PUSCH transmission opportunity that overlaps with the PUCCH.

(2-2)
Based on the constraint on the transmission opportunity that can start the transmission of the CG-PUSCH when the transmission opportunity of the multiple transmission opportunities of the CG-PUSCH set to repeat transmission and the PUCCH overlap at least in the time domain. , The terminal 20 may determine that it is not possible to start the transmission of the CG-PUSCH at the transmission opportunity of the PUSCH overlapping with the PUCCH.

(2-2-1)
When a certain transmission opportunity among a plurality of transmission opportunities of the CG-PUSCH for which repeated transmission is set and the PUCCH overlap at least in the time domain, the PUCCH and the overlapping PUSCH transmission opportunity in the time domain overlap in the time direction. If the PUSCH is not transmitted at the transmission opportunity of the previous PUSCH, the terminal 20 determines that the UCI of the PUCCH cannot be included in the PUSCH of the transmission opportunity overlapping with the PUCCH (cannot be multiplexed). You may. In this case, the terminal 20 may skip the transmission of the PUSCH at the transmission opportunity of the PUSCH later in the time direction than the transmission opportunity of the PUSCH overlapping in the time domain with the PUCCH (without performing the transmission of the PUSCH). May be good).

FIG. 6 is a diagram showing an example (4) in which UL channels overlap. FIG. 6 shows an example in which a transmission opportunity among a plurality of transmission opportunities of the CG-PUSCH for which repeated transmission is set overlaps with the PUCCH in the time domain. In the example of FIG. 6, four PUSCH transmission opportunities are set from the front in the time direction. The transmission opportunity of the second PUSCH from the front in the time domain overlaps with the PUCCH in the time domain. The terminal 20 does not transmit the PUSCH at the first transmission opportunity in terms of time among the four transmission opportunities shown in the example of FIG. When the terminal 20 detects that the transmission opportunity of the second PUSCH from the front in the time domain overlaps with the PUCCH in the time domain among the four transmission opportunities shown in the example of FIG. 6, FIG. It may be determined that the UCI of the PUCCH cannot be included in the PUSCH of the second transmission opportunity because the PUSCH is not transmitted at the first transmission opportunity for the time of the example. After that, at the third and fourth transmission opportunities in the time direction, the terminal 20 does not have to transmit the PUSCH.

(2-2-2)
When a certain transmission opportunity among a plurality of transmission opportunities of the CG-PUSCH for which repeated transmission is set and the PUCCH overlap at least in the time domain, the PUCCH and the overlapping PUSCH transmission opportunity in the time domain overlap in the time direction. When the PUSCH is transmitted at the transmission opportunity of the previous PUSCH, even if the terminal 20 determines that the UCI of the PUCCH can be included (multiplexed) in the PUSCH of the transmission opportunity overlapping with the PUCCH. good.

H3) In the case where a certain transmission opportunity among a plurality of transmission opportunities of the CG-PUSCH for which repeated transmission is set and the PUCCH overlap at least in the time domain, the terminal 20 is more time-related than the transmission opportunity overlapping with the PUCCH. Based on the presence or absence of transmission of the PUSCH in the previous transmission opportunity, it may be determined whether or not the UCI of the PUCCH can be included in the PUSCH of the transmission opportunity overlapping with the PUCCH.

(3-1)
When a transmission opportunity among a plurality of transmission opportunities of the CG-PUSCH for which repeated transmission is set and the PUCCH overlap at least in the time domain, the transmission opportunity overlapping with the PUCCH is the first transmission opportunity with respect to the time of repeated transmission. In this case, the terminal 20 may determine that it is possible to include the UCI of the PUCCH in the PUSCH of the transmission opportunity that overlaps with the PUCCH.

(3-1-2)
When one of the multiple transmission opportunities of the CG-PUSCH for which repeated transmission is set and the PUCCH overlap at least in the time domain, the transmission opportunity that overlaps with the PUCCH is the first transmission opportunity with respect to the time of repeated transmission. In this case, the terminal 20 may include the UCI of the PUCCH in the PUSCH of the transmission opportunity overlapping with the PUCCH (may be multiplexed), and in this case, the MAC layer of the terminal 20 is a MAC PDU. May be generated.

(3-1-3)
When a certain transmission opportunity among a plurality of transmission opportunities of the CG-PUSCH for which repeated transmission is set and the PUCCH overlap at least in the time domain, the transmission opportunity overlapping with the PUCCH is the first transmission opportunity with respect to the time of the repeated transmission. In this case, the terminal 20 may include the UCI of the PUCCH in the PUSCH of the transmission opportunity overlapping with the PUCCH (may be multiplexed), and in this case, the MAC layer of the terminal 20 transmits. A MAC PDU may be generated even if there is no data. In this case, the terminal 20 includes the same MAC PDU as the MAC PDU included in the PUSCH of the transmission opportunity overlapping with the PUCCH in the transmission opportunity of the PUSCH after the transmission opportunity of the PUSCH overlapping with the PUCCH (MAC PDU). You may send the PUSCH (with). Alternatively, the terminal 20 may transmit the PUSCH including any MAC PDU (with an arbitrary MAC PDU) at the transmission opportunity of the PUSCH after the transmission opportunity of the PUSCH overlapping with the PUCCH. .. Alternatively, the terminal 20 does not have to transmit the PUSCH at the PUSCH transmission opportunity after the PUSCH transmission opportunity that overlaps with the PUCCH.

When a certain transmission opportunity among a plurality of transmission opportunities of the CG-PUSCH for which repeated transmission is set and the PUCCH overlap at least in the time domain, the terminal 20 repeatedly transmits the overlapping transmission opportunity in the time domain with the PUCCH. It may be determined that it is not the first transmission opportunity with respect to the time of.

(3-2-1)
When a certain transmission opportunity among a plurality of transmission opportunities of the CG-PUSCH for which repeated transmission is set and the PUCCH overlap at least in the time domain, the overlapping transmission opportunity in the time domain is the time of the repeated transmission. If the terminal 20 does not transmit the PUSCH at the transmission opportunity that precedes the transmission opportunity that overlaps with the PUCCH in the time domain in the time domain when it is determined that the transmission opportunity is not the first. It may be determined that the UCI of the PUCCH cannot be included (cannot be multiplexed) in the PUSCH of the transmission opportunity that overlaps with the PUCCH in the time domain. In this case, the terminal 20 may skip the transmission of the PUSCH at the transmission opportunity of the PUSCH later in the time direction than the transmission opportunity of the PUSCH overlapping in the time domain with the PUCCH (without performing the transmission of the PUSCH). May be good).

(3-2-2)
When a certain transmission opportunity among a plurality of transmission opportunities of the CG-PUSCH for which repeated transmission is set and the PUCCH overlap at least in the time domain, the overlapping transmission opportunity in the time domain is the time of the repeated transmission. When the terminal 20 transmits the PUSCH at a transmission opportunity earlier in the time direction than the transmission opportunity overlapping in the time domain with the PUCCH when it is determined that it is not the first transmission opportunity, the terminal 20 transmits the PUCCH. It may be determined that it is possible (and possible to multiplex) the UCI of the PUCCH to be included in the PUSCH of the transmission opportunities that overlap in the time domain.

FIG. 7 is a diagram showing an example (5) in which UL channels overlap. FIG. 7 shows an example in which a certain transmission opportunity among a plurality of transmission opportunities of the CG-PUSCH set to be repeatedly transmitted and the PUCCH overlap in the time domain. In the example of FIG. 7, four PUSCH transmission opportunities are set from the front in the time direction. The transmission opportunity of the second PUSCH from the front in the time domain overlaps with the PUCCH in the time domain. For example, the terminal 20 determines that the transmission opportunity that overlaps with the PUCCH in the time domain is not the first transmission opportunity with respect to the time of repeated transmission. It is assumed that the terminal 20 does not transmit the PUSCH at the first transmission opportunity in terms of time among the four transmission opportunities shown in the example of FIG. In this case, the terminal 20 does not have to transmit the PUSCH at the transmission opportunity of the second PUSCH from the front in the time direction among the four transmission opportunities shown in the example of FIG. After that, at the third and fourth transmission opportunities in the time direction, the terminal 20 does not have to transmit the PUSCH.

H4) When a certain transmission opportunity among a plurality of transmission opportunities of the CG-PUSCH for which repeated transmission is set and the PUCCH overlap at least in the time domain, the terminal 20 performs the MAC PDU at the transmission opportunity of the PUSCH repeated transmission. The PUCCH may be transmitted by dropping the PUSCH of the transmission opportunity without generating the PUCCH, or if there is another PUSCH, the PUSCH may be multiplexed with the other PUSCH.

Even if there is data to be transmitted at the transmission opportunity, the PUSCH of the transmission opportunity may be dropped, and the data may be transmitted at the subsequent transmission opportunity.

In the example shown in H1) -H4) above, in the case of repeated transmission of CG-PUSCH, in the case of the transmission opportunity of one of a plurality of PUSCHs, the transmission opportunity of the terminal 20 overlaps with the PUCCH in the time domain. An example of operation is explained. However, the embodiment is not limited to the case of repeated transmission of CG-PUSCH, and may be applied to the case of repeated transmission of DG-PUSCH.

In the case of repeated transmission of DG-PUSCH, the terminal 20 may skip the transmission of all PUSCHs, or may transmit all PUSCHs.

In the case of repeated transmission of DG-PUSCH, whether or not transmission may be performed from an intermediate transmission opportunity in the time direction among the transmission opportunities of a plurality of PUSCHs, and how to handle the subsequent transmission opportunity in the time direction. It is possible to apply the above embodiment.

5 to 7 show an example in which CG-PUSCH is repeatedly transmitted in slot units, but this embodiment is not limited to this example. For example, repeated transmission of CG-PUSCH may be performed in symbol units. The case where the repeated transmission of CG-PUSCH is performed in slot units may be referred to as PUSCH reproduction type A, and the case where the repeated transmission of CG-PUSCH is performed in symbol units may be referred to as PUSCH repetition type B.

In the PUSCH representation type B, when a plurality of actual repitations are determined from the negative symbol y, the example shown in H1) -H4) above may be applied to the actual repitation.

The example shown in H1) -H4) above may target only the PUCCH that does not repeatedly transmit, or may target the PUCCH that repeatedly transmits.

Note that the above-mentioned repeated transmission may mean repeated transmission of the same transport block (that is, MAC PDU).

According to the example shown in H1) -H4) above, in a specific case where the PUCCH and the PUSCH of any of the plurality of PUSCHs overlap at least in the time domain, the terminal 20 is the PUCCH. The operation of including the UCI in the PUSCH and the operation of skipping the transmission of the PUSCH are clarified. The operation of the terminal 20 including the UCI of the PUCCH in the PUSCH can be the same as the operation without the repeated transmission of the PUSCH. Further, for the operation in which the terminal 20 does not include the UCI of the PUCCH in the PUSCH, it is possible to avoid unnecessary (or additional functions) PUSCH transmission.

Here, the operation of the terminal 20 when a plurality of the above conditions A, A', B, C, D, E, F and G are satisfied at the same time is not clear. For example, one or more PUSCH transmissions are set or instructed, at least one PUSCH is set or instructed to repeatedly transmit, and either PUSCH and PUCCH overlap at least in the time domain and are transmitted by at least one PUSCH resource. There was no data to be written, PUSCH could be skipped, and the operation of the terminal 20 when the priority of the logical channel and / or the priority in the physical layer was set or instructed was not specified.

Therefore, if a predetermined condition is satisfied, the overlap between PUSCH and PUCCH may be resolved by a predetermined method. Hereinafter, regarding the description of the priority, the high priority is described as HP (Higher priority) and the low priority is described as LP (Lower priority). HP and LP may be priorities in the physical layer, or may be priorities in higher layers such as logical channels. When the priority is 3 or more, the priority may be divided into two groups, the group with high priority may be referred to as HP, and the group with low priority may be referred to as LP.

For example, the above-mentioned predetermined conditions may be the conditions shown in 1) -5) below.

1) When one or more PUSCH transmissions are set or instructed.
2) When repeated transmission is set or instructed to at least one PUSCH.
3) When either PUSCH and PUCCH overlap at least in the time domain.
4) When there is no data to be transmitted by at least one PUSCH resource and the PUSCH transmission can be skipped. It may be the case that the PUSCH transmission can be skipped based on the rule shown in B1) or B2) above.
5) When the priority of the logical channel and / or the priority in the physical layer is set or specified.

For example, the above-mentioned predetermined method may be the method shown in Proposal 1) -Proposal 3) below.

Proposal 1) After processing the overlap between channels for each priority, handle the overlap between channels with different priorities.
Proposal 2) After processing the overlap related to the channel having high priority, the overlap related to the channel having low priority is processed based on the channel having high priority after processing.
Proposal 3) Overlapping to a channel with a high priority After dropping a channel with a low priority, the overlap between the channels is processed for each priority.

Hereinafter, FIGS. 8 to 15 are examples in which the assumed channels overlap.

FIG. 8 is a diagram showing an example (1) of UL transmission in the embodiment of the present invention. As shown in FIG. 8, PUSCH-LP is repeatedly transmitted, PUCCH-LP and PUSCH-HP overlap at a certain transmission opportunity in the repeated transmission, and PUCCH-LP and PUSCH-HP also overlap each other. A case is assumed.

FIG. 9 is a diagram showing an example (2) of UL transmission in the embodiment of the present invention. As shown in FIG. 9, PUSCH-LP is repeatedly transmitted, PUCCH-LP and PUCCH-HP overlap at a certain transmission opportunity in the repeated transmission, and PUCCH-LP and PUCCH-HP also overlap each other. A case is assumed.

FIG. 10 is a diagram showing an example (3) of UL transmission in the embodiment of the present invention. As shown in FIG. 10, PUSCH-LP is repeatedly transmitted, PUCCH-LP and PUSCH-HP overlap at a certain transmission opportunity in the repeated transmission, and PUCCH-LP and PUSCH-HP overlap each other. It is assumed that this is not the case.

FIG. 11 is a diagram showing an example (4) of UL transmission in the embodiment of the present invention. As shown in FIG. 11, PUSCH-LP is repeatedly transmitted, PUCCH-LP and PUCCH-HP overlap at a certain transmission opportunity in the repeated transmission, and PUCCH-LP and PUCCH-HP overlap each other. It is assumed that this is not the case.

FIG. 12 is a diagram showing an example (5) of UL transmission in the embodiment of the present invention. As shown in FIG. 12, PUSCH-LP is repeatedly transmitted, PUCCH-LP overlaps with one transmission opportunity and other PUSCH-HP in the repeated transmission, and PUSCH-LP and PUSCH-HP overlap. It is assumed that there is no wrapping.

FIG. 13 is a diagram showing an example (6) of UL transmission in the embodiment of the present invention. As shown in FIG. 13, PUSCH-LP is repeatedly transmitted, PUCCH-HP overlaps with one transmission opportunity and other PUSCH-HP in the repeated transmission, and PUSCH-LP and PUSCH-HP overlap. It is assumed that there is no wrapping.

FIG. 14 is a diagram showing an example (7) of UL transmission in the embodiment of the present invention. As shown in FIG. 14, PUSCH-LP is repeatedly transmitted, another PUSCH-HP overlaps with one transmission opportunity and PUCCH-LP in the repeated transmission, and PUSCH-LP and PUCCH-LP overlap. It is assumed that there is no wrapping.

FIG. 15 is a diagram showing an example (8) of UL transmission in the embodiment of the present invention. As shown in FIG. 15, PUSCH-LP is repeatedly transmitted, another PUSCH-HP overlaps with one transmission opportunity and PUCCH-HP in the repeated transmission, and PUSCH-LP and PUCCH-HP overlap. It is assumed that there is no wrapping.

It should be noted that in FIGS. 8 to 15, it is assumed that PUSCH-LP and PUSCH-HP are replaced.

FIG. 16 is a flowchart for explaining an example (1) of UL transmission in the embodiment of the present invention. As in the above proposal 1), the terminal 20 may process the overlap between channels having different priorities after processing the overlap between channels for each priority. That is, if there is no data to be transmitted in the PUSCH repeated transmission, the PUSCH transmission at the transmission opportunity can be skipped, and the PUCCHs of the same priority overlap at a certain transmission opportunity, the solution is to use channels of different priorities. It does not have to be related to overlap. For example, when PUCCHs having the same priority overlap, the terminal 20 may solve the problem by the method shown in H1) -H4) above.

In step S11, the terminal 20 processes the overlap between channels for each priority. In a subsequent step S12, the terminal 20 handles the overlap between channels having different priorities. In step S12, the overlap between channels having different priorities may be resolved by the method shown in 1) -4) below.

1) Priority is given to HP channels for overlap between HP channels that are confirmed to be transmitted (for example, PUCCH, PUSCH with UCI, DG-PUSCH that is not allowed to skip, etc.) and LP channels. You may drop the LP channel.

2) For the overlap between the PUSCH-HP that can be skipped and the LP channel, a MAC PDU is generated in the PUSCH-HP, and the overlapping LP channel may be dropped. That is, it does not have to depend on whether or not the PUSCH is a repetitive transmission, whether or not there is data, and whether or not the repetitive transmission is a transmission opportunity at which transmission can be started.

3) It is not necessary to generate a MAC PDU in the PUSCH-HP for the overlap between the PUSCH-HP that can be skipped and the LP channel. That is, it does not have to depend on whether or not the PUSCH is a repetitive transmission, whether or not there is data, and whether or not the repetitive transmission is a transmission opportunity at which transmission can be started.

4) Whether or not the PUSCH is repeatedly transmitted with respect to the overlap between the PUSCH-HP which can be skipped and the LP channel and the overlap between the PUSCH-HP which can be skipped and the LP channel. The process may be determined based on at least one of whether or not there is data and whether or not it is a transmission opportunity that can start transmission among repeated transmissions. For example, in the case of repeated transmission of PUSCH-HP, MAC PDU may not be generated in PUSCH-HP, and in the case of repeated transmission of PUSCH-HP, MAC PDU may be generated in PUSCH-HP. For example, if it is a repeated transmission of PUSCH-HP and it is not a transmission opportunity that can start transmission, a MAC PDU is not generated in PUSCH-HP, and if it is a transmission opportunity that can start transmission, a MAC PDU is generated in PUSCH-HP. You may.

FIG. 17 is a flowchart for explaining an example (2) of UL transmission in the embodiment of the present invention. Even if the overlap related to the channel having high priority is processed and then the overlap related to the channel having low priority is processed based on the channel having high priority after processing as in the above proposal 2. good.

In step S21, the terminal 20 processes the overlap related to the channel having a high priority. In a subsequent step S22, the terminal 20 processes the overlap relating to the channel having the lower priority based on the channel having the higher priority after the processing.

In the overlap processing related to the HP channel in step S21, when the overlap resolution of PUCCH-HP and PUSCH includes repeated transmission of PUSCH, the method shown in H1) -H4) above may be applied.

In step S22, the overlap resolution of different priorities and the overlap resolution of the LP channels may be performed by the methods shown in 1) -5) below.

1) When the channel whose transmission is confirmed by PUCCH-HP / PUSCH-HP after the step S21 processing overlaps with PUCCH-LP / PUSCH-LP, LP is performed on the channel excluding the PUCCH-LP / PUSCH-LP. Channel overlap may be resolved. When the repeated transmission of PUSCH-LP is included, the method of H1) -H4) may be applied. Further, the channel to be excluded may be limited to PUSCH-LP. Further, the LP channel that overlaps with the HP channel may be dropped after the overlap of the LP channel is resolved.

2) When the channel whose transmission is confirmed by PUCCH-HP / PUSCH-HP after the step S21 processing overlaps with PUCCH-LP / PUSCH-LP, the overlapping LP channel is further combined with the HP channel. When there is a PUSCH-LP that does not overlap (for example, in the case of FIG. 12), whether or not the PUSCH is repeatedly transmitted, whether or not there is data, and a transmission opportunity that can start transmission among the repeated transmissions. The process may be determined based on at least one of whether or not.

3) With respect to the overlap between the PUSCH-HP that can be skipped by the PUSCH-HP after the step S21 processing and the LP channel, a MAC PDU may be generated in the PUSCH-HP and the LP channel may be dropped.

4) With respect to the overlap between the PUSCH-HP that can be skipped by the PUSCH-HP after the step S21 processing and the LP channel, the MAC PDU is not generated in the PUSCH-HP and the overlap related to the LP channel is solved. You may. For the overlap related to the LP channel, the method shown in H1) -H4) above may be applied to solve the overlap. That is, it does not have to depend on whether or not the PUSCH is a repetitive transmission, whether or not there is data, and whether or not the repetitive transmission is a transmission opportunity at which transmission can be started.

5) Whether or not the PUSCH is repeatedly transmitted, whether or not there is data, and among the repeated transmissions, with respect to the overlap between the PUSCH-HP that can be skipped by the PUSCH-HP after the step S21 processing and the LP channel. The process may be determined based on at least one of whether or not the transmission opportunity can be started. For example, in the case of repeated transmission of PUSCH-HP, MAC PDU may not be generated in PUSCH-HP, and in the case of repeated transmission of PUSCH-HP, MAC PDU may be generated in PUSCH-HP. Further, if it is a repeated transmission of PUSCH-HP and it is not a transmission opportunity that can start transmission, a MAC PDU is not generated in PUSCH-HP, and if it is a transmission opportunity that can start transmission, a MAC PDU is generated in PUSCH-HP. You may.

FIG. 18 is a flowchart for explaining an example (3) of UL transmission in the embodiment of the present invention. As in Proposal 3 above, after dropping a channel having a low priority that overlaps with a channel having a high priority, the overlap between the channels may be processed for each priority.

In step S31, the terminal 20 drops a channel having a low priority that overlaps with the channel having a high priority. In the following step S32, the terminal 20 processes the overlap between the channels for each priority. Then, if there is an overlap between channels of different priority, resolve the overlap.

The terminal 20 may apply either the above proposal 1 or the above proposal 2 to the overlap processing in step S31 or step S32.

As a proposal 4, the terminal 20 is based on at least one of whether or not the PUSCH is a repetitive transmission, whether or not there is data, and whether or not the repetitive transmission is a transmission opportunity where transmission can be started. , The above-mentioned Proposal 1, the above-mentioned Proposal 2 and the above-mentioned Proposal 3 may be decided.

Note that different processing methods may be applied to the overlap resolution between PUCCH-HP and PUSCH-HP repeatedly transmitted and the overlap resolution between PUCCH-LP and PUSCH-LP repeatedly transmitted. For example, in the case of the overlap between PUCCH-HP and the repeatedly transmitted PUSCH-HP, the above H1) is applied, and in the case of the overlap between the PUCCH-LP and the repeatedly transmitted PUSCH-LP, the above H2) is applied. You may.

In the above embodiment, the PUSCH to which the repeated transmission is not applied may be replaced with the PUSCH to which the repeated transmission is applied.

The above embodiment may be applied to either the repeated transmission of CG-PUSCH or the repeated transmission of DG-PUSCH.

Although it is described that the repeated transmission is performed in slot units in the above embodiment, it may be applied to repeated transmission in symbol units. Repeated transmission in slot units is referred to as PUSCH repeat type A, and repeated transmission in symbol units is referred to as PUSCH repeat type B. In Type B, if the invalid symbol determines the actual iteration from the nominal iteration, the embodiment may be applied to the actual iteration.

Note that the PUCCH in this embodiment may be targeted only at the PUCCH that is not repeatedly transmitted, or may be the target of the PUCCH that is repeatedly transmitted.

Note that repeated transmission may mean repeated transmission of the same transport block (that is, MAC PDU).

Note that, for example, different overlap resolution methods may be applied to each of the overlap cases shown in FIGS. 8 to 15.

It should be noted that the confirmation of the PUSCH preparation time and the PDSCH processing time (PUCCH preparation time) is executed for each transmission of the repeated transmission, and it may be determined whether or not the present embodiment is applicable, and the transmission at the beginning of the repeated transmission may be performed. However, it may be determined whether or not the present embodiment is applicable.

The priority may be binary or more than binary. When the priority is more than two values, the above embodiment may be applied to the two values among them.

According to the above embodiment, it is possible to clarify the operation of the terminal 20 when a plurality of conditions relating to the overlap between UL channels are simultaneously satisfied. Further, the number of blind decodings of the base station 10 can be reduced. Further, the operation of the terminal 20 can be made common regardless of the overlap case.

That is, when the uplink channels overlap in the time domain, the uplink channel to be transmitted can be determined.

(Device configuration)
Next, a functional configuration example of the base station 10 and the terminal 20 that execute the processes and operations described so far will be described. The base station 10 and the terminal 20 include a function of executing the above-described embodiment. However, the base station 10 and the terminal 20 may each have only the proposed function of any one of the embodiments.

<Base station 10>
FIG. 19 is a diagram showing an example of the functional configuration of the base station 10. As shown in FIG. 19, the base station 10 has a transmission unit 110, a reception unit 120, a setting unit 130, and a control unit 140. The functional configuration shown in FIG. 19 is only an example. Any function classification and name of the functional unit may be used as long as the operation according to the embodiment of the present invention can be performed. The transmitting unit 110 and the receiving unit 120 may be referred to as a communication unit.

The transmission unit 110 includes a function of generating a signal to be transmitted to the terminal 20 side and transmitting the signal wirelessly. The receiving unit 120 includes a function of receiving various signals transmitted from the terminal 20 and acquiring information of, for example, a higher layer from the received signals. Further, the transmission unit 110 has a function of transmitting NR-PSS, NR-SSS, NR-PBCH, DL / UL control signal, DL data, etc. to the terminal 20. Further, the transmission unit 110 transmits the setting information and the like described in the embodiment.

The setting unit 130 stores preset setting information and various setting information to be transmitted to the terminal 20 in the storage device, and reads them out from the storage device as needed. The control unit 140, for example, allocates resources, controls the entire base station 10, and the like. The function unit related to signal transmission in the control unit 140 may be included in the transmission unit 110, and the function unit related to signal reception in the control unit 140 may be included in the reception unit 120. Further, the transmitting unit 110 and the receiving unit 120 may be referred to as a transmitter and a receiver, respectively.

<Terminal 20>
FIG. 20 is a diagram showing an example of the functional configuration of the terminal 20. As shown in FIG. 20, the terminal 20 has a transmission unit 210, a reception unit 220, a setting unit 230, and a control unit 240. The functional configuration shown in FIG. 20 is only an example. Any function classification and name of the functional unit may be used as long as the operation according to the embodiment of the present invention can be performed. The transmitting unit 210 and the receiving unit 220 may be referred to as a communication unit.

The transmission unit 210 creates a transmission signal from the transmission data and wirelessly transmits the transmission signal. The receiving unit 220 wirelessly receives various signals and acquires a signal of a higher layer from the received signal of the physical layer. Further, the transmitting unit 210 transmits HARQ-ACK, and the receiving unit 220 receives the setting information and the like described in the embodiment.

The setting unit 230 stores various setting information received from the base station 10 by the receiving unit 220 in the storage device, and reads it out from the storage device as needed. The setting unit 230 also stores preset setting information. The control unit 240 controls the entire terminal 20 and the like. The transmission unit 210 may include the function unit related to signal transmission in the control unit 240, and the reception unit 220 may include the function unit related to signal reception in the control unit 240. Further, the transmitter 210 and the receiver 220 may be referred to as a transmitter and a receiver, respectively.

(Hardware configuration)
The block diagram (FIGS. 19 and 20) used in the description of the above embodiment shows a block of functional units. These functional blocks (components) are realized by any combination of at least one of hardware and software. Further, the method of realizing each functional block is not particularly limited. That is, each functional block may be realized using one physically or logically coupled device, or two or more physically or logically separated devices can be directly or indirectly (eg, for example). , Wired, wireless, etc.) and may be realized using these plurality of devices. The functional block may be realized by combining the software with the one device or the plurality of devices.

Functions include judgment, decision, judgment, calculation, calculation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, solution, selection, selection, establishment, comparison, assumption, expectation, and assumption. Broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc., but limited to these I can't. For example, a functional block (configuration unit) that makes transmission function is called a transmitting unit (transmitting unit) or a transmitter (transmitter). In each case, as described above, the realization method is not particularly limited.

For example, the base station 10, the terminal 20, and the like in one embodiment of the present disclosure may function as a computer that processes the wireless communication method of the present disclosure. FIG. 21 is a diagram showing an example of the hardware configuration of the base station 10 and the terminal 20 according to the embodiment of the present disclosure. The above-mentioned base station 10 and terminal 20 are physically configured as a computer device including a processor 1001, a storage device 1002, an auxiliary storage device 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, and the like. May be good.

In the following explanation, the word "device" can be read as a circuit, device, unit, etc. The hardware configuration of the base station 10 and the terminal 20 may be configured to include one or more of the devices shown in the figure, or may be configured not to include some of the devices.

For each function in the base station 10 and the terminal 20, by loading predetermined software (program) on the hardware such as the processor 1001 and the storage device 1002, the processor 1001 performs an calculation and controls the communication by the communication device 1004. It is realized by controlling at least one of reading and writing of data in the storage device 1002 and the auxiliary storage device 1003.

The processor 1001 operates, for example, an operating system to control the entire computer. The processor 1001 may be configured by a central processing unit (CPU: Central Processing Unit) including an interface with a peripheral device, a control device, an arithmetic unit, a register, and the like. For example, the above-mentioned control unit 140, control unit 240, and the like may be realized by the processor 1001.

Further, the processor 1001 reads a program (program code), a software module, data, or the like from at least one of the auxiliary storage device 1003 and the communication device 1004 into the storage device 1002, and executes various processes according to these. As the program, a program that causes a computer to execute at least a part of the operations described in the above-described embodiment is used. For example, the control unit 140 of the base station 10 shown in FIG. 19 may be realized by a control program stored in the storage device 1002 and operated by the processor 1001. Further, for example, the control unit 240 of the terminal 20 shown in FIG. 20 may be realized by a control program stored in the storage device 1002 and operated by the processor 1001. Although it has been described that the various processes described above are executed by one processor 1001, they may be executed simultaneously or sequentially by two or more processors 1001. Processor 1001 may be mounted by one or more chips. The program may be transmitted from the network via a telecommunication line.

The storage device 1002 is a computer-readable recording medium, and is, for example, by at least one of ROM (ReadOnlyMemory), EPROM (ErasableProgrammableROM), EEPROM (ElectricallyErasableProgrammableROM), RAM (RandomAccessMemory), and the like. It may be configured. The storage device 1002 may be referred to as a register, a cache, a main memory (main storage device), or the like. The storage device 1002 can store a program (program code), a software module, or the like that can be executed to implement the communication method according to the embodiment of the present disclosure.

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

The communication device 1004 is hardware (transmission / reception device) for communicating between computers via at least one of a wired network and a wireless network, and is also referred to as, for example, a network device, a network controller, a network card, a communication module, or the like. The communication device 1004 includes, for example, a high frequency switch, a duplexer, a filter, a frequency synthesizer, and the like in order to realize at least one of frequency division duplex (FDD: Frequency Division Duplex) and time division duplex (TDD: Time Division Duplex). It may be composed of. For example, the transmission / reception antenna, the amplifier unit, the transmission / reception unit, the transmission line interface, and the like may be realized by the communication device 1004. The transmission / reception unit may be physically or logically separated from each other in the transmission unit and the reception unit.

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

Further, each device such as the processor 1001 and the storage device 1002 is connected by the bus 1007 for communicating information. The bus 1007 may be configured by using a single bus, or may be configured by using a different bus for each device.

Further, the base station 10 and the terminal 20 are hardware such as a microprocessor, a digital signal processor (DSP: Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), a PLD (Programmable Logic Device), and an FPGA (Field Programmable Gate Array). It may be configured to include, 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 hardware.

(Summary of embodiments)
As described above, according to the embodiment of the present invention, the overlap between a plurality of channels including at least one physical uplink shared channel and at least one physical uplink control channel is detected, and a specific condition is detected. When is satisfied, a control unit that resolves the overlap by a specific method to determine which of the plurality of channels to transmit, and a transmission unit that transmits the channel determined to be transmitted to the base station. A terminal having and is provided.

With the above configuration, it is possible to clarify the operation of the terminal 20 when a plurality of conditions related to the overlap between UL channels are satisfied at the same time. Further, the number of blind decodings of the base station 10 can be reduced. Further, the operation of the terminal 20 can be made common regardless of the overlap case. That is, when the uplink channels overlap in the time domain, the uplink channel to be transmitted can be determined.

The specific condition is that repeated transmission is set to at least one physical uplink shared channel among the plurality of channels, and one of the plurality of physical uplink shared channels and one of the physical uplinks are set. The control channel overlaps with the control channel at least in the time domain, and there is no data to be transmitted by the resource of at least one physical uplink shared channel among the plurality of channels, and the transmission of the physical uplink shared channel can be skipped. Moreover, the priority of the logical channel or the priority in the physical layer may be set for each of the plurality of channels. With this configuration, it is possible to clarify the operation of the terminal 20 when a plurality of conditions relating to the overlap between UL channels are simultaneously satisfied.

The specific method may be a method of resolving the overlap between the plurality of channels for each priority and then resolving the overlap between the plurality of channels having different priorities. With this configuration, it is possible to clarify the operation of the terminal 20 when a plurality of conditions relating to the overlap between UL channels are simultaneously satisfied.

The specific method is a method of resolving the overlap relating to the channel having the higher priority among the plurality of channels and then resolving the overlap relating to the channel having the lower priority among the plurality of channels. May be good. With this configuration, it is possible to clarify the operation of the terminal 20 when a plurality of conditions relating to the overlap between UL channels are simultaneously satisfied.

The specific method is a method of dropping a channel having a low priority that overlaps with a channel having a high priority among the plurality of channels, and then resolving the overlap between the plurality of channels for each priority. There may be. With this configuration, it is possible to clarify the operation of the terminal 20 when a plurality of conditions relating to the overlap between UL channels are simultaneously satisfied.

The overlap between a plurality of channels including at least one physical uplink shared channel and at least one physical uplink control channel is detected, and if a specific condition is satisfied, the overlap is resolved by a specific method. A communication method is provided in which a terminal executes a control procedure for determining which of a plurality of channels is to be transmitted and a transmission procedure for transmitting the channel determined to be transmitted to a base station.

(Supplement to the embodiment)
Although the embodiments of the present invention have been described above, the disclosed inventions are not limited to such embodiments, and those skilled in the art will understand various modifications, modifications, alternatives, substitutions, and the like. There will be. Although explanations have been given using specific numerical examples in order to promote understanding of the invention, these numerical values are merely examples and any appropriate value may be used unless otherwise specified. The classification of items in the above description is not essential to the present invention, 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 used in another item. May apply (as long as there is no conflict) to the matters described in. The boundary of the functional part or the processing part in the functional block diagram does not always correspond to the boundary of the physical component. The operation of the plurality of functional units may be physically performed by one component, or the operation of one functional unit may be physically performed by a plurality of components. Regarding the processing procedure described in the embodiment, the processing order may be changed as long as there is no contradiction. For convenience of processing, the base station 10 and the terminal 20 have been described with reference to 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 10 according to the embodiment of the present invention and the software operated by the processor of the terminal 20 according to the embodiment of the present invention are random access memory (RAM), flash memory, and read-only memory, respectively. It may be stored in (ROM), EPROM, EPROM, registers, hard disk (HDD), removable disk, CD-ROM, database, server or any other suitable storage medium.

Further, the notification of information is not limited to the embodiment / embodiment described in the present disclosure, and may be performed by using another method. For example, information notification includes physical layer signaling (for example, DCI (Downlink Control Information), UCI (Uplink Control Information)), higher layer signaling (for example, RRC (Radio Resource Control) signaling, MAC (Medium Access Control) signaling, etc. It may be carried out by broadcast information (MIB (Master Information Block), SIB (System Information Block)), other signals, or a combination thereof. RRC signaling may be referred to as an RRC message, for example, RRC. It may be a connection setup (RRCConnectionSetup) message, an RRC connection reconfiguration (RRCConnectionReconfiguration) message, or the like.

Each aspect / embodiment described in the present disclosure includes LTE (Long Term Evolution), LTE-A (LTE-Advanced), SUPER 3G, IMT-Advanced, 4G (4th generation mobile communication system), and 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)) )), LTE 802.16 (WiMAX®), IEEE 802.20, UWB (Ultra-WideBand), Bluetooth®, and other systems that utilize appropriate systems and have been extended based on these. It may be applied to at least one of the next generation systems. Further, a plurality of systems may be applied in combination (for example, a combination of at least one of LTE and LTE-A and 5G).

The order of the processing procedures, sequences, flowcharts, etc. of each aspect / embodiment described in the present specification may be changed as long as there is no contradiction. For example, the methods described in the present disclosure present elements of various steps using exemplary order, and are not limited to the particular order presented.

In some cases, the specific operation performed by the base station 10 in the present specification may be performed by its upper node (upper node). In a network consisting of one or more network nodes having a base station 10, various operations performed for communication with the terminal 20 are performed by the base station 10 and other network nodes other than the base station 10 ( For example, MME, S-GW, etc. are conceivable, but it is clear that it can be done by at least one of these). In the above example, the case where there is one network node other than the base station 10 is illustrated, but the other network node may be a combination of a plurality of other network nodes (for example, MME and S-GW). ..

The information, signals, etc. described in the present disclosure can be output from the upper layer (or lower layer) to the lower layer (or upper layer). Input / output may be performed via a plurality of network nodes.

The input / output information and the like may be stored in a specific location (for example, a memory) or may be managed using a management table. Information to be input / output may be overwritten, updated, or added. The output information and the like may be deleted. The input information or the like may be transmitted to another device.

The determination in the present disclosure may be made by a value represented by 1 bit (0 or 1), by a boolean value (Boolean: true or false), or by comparison of numerical values (for example). , Comparison with a predetermined value).

Software, whether called software, firmware, middleware, microcode, hardware description language, or other names, instructions, instruction sets, codes, code segments, program codes, programs, subprograms, software modules. , Applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, procedures, features, etc. should be broadly interpreted.

Further, software, instructions, information, etc. may be transmitted and received via a transmission medium. For example, the software may use at least one of wired technology (coaxial cable, fiber optic cable, twist pair, digital subscriber line (DSL: Digital Subscriber Line), etc.) and wireless technology (infrared, microwave, etc.) to create a website. When transmitted from a server or other remote source, at least one of these wired and wireless technologies is included within the definition of transmission medium.

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

The terms described in the present disclosure and the terms necessary for understanding the present disclosure may be replaced with terms having the same or similar meanings. For example, at least one of a channel and a symbol may be a signal (signaling). Also, the signal may be a message. Further, the component carrier (CC: Component Carrier) may be referred to as a carrier frequency, a cell, a frequency carrier, or the like.

The terms "system" and "network" used in this disclosure are used interchangeably.

Further, the information, parameters, etc. described in the present disclosure may be expressed using an absolute value, a relative value from a predetermined value, or another corresponding information. It may be represented. For example, the radio resource may be one indicated by an index.

The names used for the above parameters are not limited in any respect. Further, mathematical formulas and the like using these parameters may differ from those expressly disclosed in this disclosure. Since the various channels (eg, 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 any respect limited names. is not.

In this disclosure, "base station (BS: Base Station)", "wireless base station", "base station", "fixed station", "NodeB", "eNodeB (eNB)", "gNodeB (gNodeB) gNB) ”,“ access point ”,“ transmission point ”,“ reception point ”,“ transmission / reception point ”,“ cell ”,“ sector ”,“ Terms such as "cell group", "carrier", and "component carrier" may be used interchangeably. Base stations are sometimes referred to by terms such as macrocells, small cells, femtocells, and picocells.

The base station can accommodate one or more (eg, 3) cells. When a base station accommodates multiple cells, the entire base station coverage area can be divided into multiple smaller areas, each smaller area being a base station subsystem (eg, a small indoor base station (RRH:)). Communication services can also be provided by Remote Radio Head). The term "cell" or "sector" is a part or all of the coverage area of at least one of the base stations and base station subsystems that provide communication services in this coverage. Point to.

In the present disclosure, terms such as "mobile station (MS: Mobile Station)", "user terminal", "user device (UE: User Equipment)", and "terminal" may be used interchangeably. ..

Mobile stations can be used by those skilled in the art as subscriber stations, mobile units, subscriber units, wireless units, remote units, mobile devices, wireless devices, wireless communication devices, remote devices, mobile subscriber stations, access terminals, mobile terminals, wireless. It may also be referred to as a terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable term.

At least one of the base station and the mobile station may be called a transmitting device, a receiving device, a communication device, or the like. At least one of the base station and the mobile station may be a device mounted on the mobile body, a mobile body itself, or the like. The moving body may be a vehicle (eg, car, airplane, etc.), an unmanned moving body (eg, drone, self-driving car, etc.), or a robot (manned or unmanned). ) May be. It should be noted that at least one of the base station and the mobile station includes a device that does not necessarily move during communication operation. For example, at least one of a base station and a mobile station may be an IoT (Internet of Things) device such as a sensor.

Further, the base station in the present disclosure may be read by the user terminal. For example, the communication between the base station and the user terminal is replaced with the communication between a plurality of terminals 20 (for example, it may be referred to as D2D (Device-to-Device), V2X (Vehicle-to-Everything), etc.). Each aspect / embodiment of the present disclosure may be applied to the configuration. In this case, the terminal 20 may have the functions of the base station 10 described above. Further, words such as "up" and "down" may be read as words corresponding to communication between terminals (for example, "side"). For example, the upstream channel, the downstream channel, and the like may be read as a side channel.

Similarly, the user terminal in the present disclosure may be read as a base station. In this case, the base station may have the functions of the above-mentioned user terminal.

The terms "determining" and "determining" used in this disclosure may include a wide variety of actions. "Judgment" and "decision" are, for example, judgment (judging), calculation (calculating), calculation (computing), processing (processing), derivation (deriving), investigation (investigating), search (looking up, search, inquiry). It may include (eg, searching in a table, database or another data structure), ascertaining as "judgment" or "decision". Also, "judgment" and "decision" are receiving (for example, receiving information), transmitting (for example, transmitting information), input (input), output (output), and access. It may include (for example, accessing data in memory) to be regarded as "judgment" or "decision". In addition, "judgment" and "decision" are considered to be "judgment" and "decision" when the things such as solving, selecting, choosing, establishing, and comparing are regarded as "judgment" and "decision". Can include. That is, "judgment" and "decision" may include considering some action as "judgment" and "decision". Further, "judgment (decision)" may be read as "assuming", "expecting", "considering" and the like.

The terms "connected", "coupled", or any variation thereof, mean any direct or indirect connection or connection between two or more elements and each other. It can include the presence of one or more intermediate elements between two "connected" or "combined" elements. The connection or connection between the elements may be physical, logical, or a combination thereof. For example, "connection" may be read as "access". As used in the present disclosure, the two elements use at least one of one or more wires, cables and printed electrical connections, and as some non-limiting and non-comprehensive examples, the radio frequency domain. Can be considered to be "connected" or "coupled" to each other using electromagnetic energy having wavelengths in the microwave and light (both visible and invisible) regions.

The reference signal can also be abbreviated as RS (Reference Signal), and may be called a pilot (Pilot) depending on the applied standard.

The statement "based on" used in this disclosure does not mean "based on" unless otherwise stated. In other words, the statement "based on" means both "based only" and "at least based on".

Any reference to elements using designations such as "first" and "second" as used in this disclosure does not generally limit the quantity or order of those elements. These designations can be used in the present disclosure as a convenient way to distinguish between two or more elements. Therefore, references to the first and second elements do not mean that only two elements can be adopted, or that the first element must somehow precede the second element.

The "means" in the configuration of each of the above devices may be replaced with a "part", a "circuit", a "device", or the like.

When "include", "including" and variations thereof are used in the present disclosure, these terms are as inclusive as the term "comprising". Is intended. Moreover, the term "or" used in the present disclosure is intended not to be an exclusive OR.

The wireless frame may be composed of one or more frames in the time domain. Each one or more frames in the time domain may be referred to as a subframe. The subframe may further be composed of one or more slots in the time domain. The subframe may have a fixed time length (eg, 1 ms) that does not depend on numerology.

The numerology may be a communication parameter applied to at least one of transmission and reception of a signal or channel. Numerology includes, for example, subcarrier interval (SCS: SubCarrier Spacing), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI: Transmission Time Interval), number of symbols per TTI, wireless frame configuration, transmitter / receiver. It may indicate at least one of a specific filtering process performed in the frequency domain, a specific windowing process performed by the transmitter / receiver in the time domain, and the like.

The slot may be composed of one or more symbols (OFDM (Orthogonal Frequency Division Multiplexing) symbol, SC-FDMA (Single Carrier Frequency Division Multiple Access) symbol, etc.) in the time region. Slots may be time units based on numerology.

The slot may include a plurality of mini slots. Each minislot may be composed of one or more symbols in the time domain. Further, the mini-slot may be referred to as a sub-slot. A minislot may consist of a smaller number of symbols than the slot. PDSCH (or PUSCH) transmitted in time units larger than the minislot may be referred to as PDSCH (or PUSCH) mapping type A. The PDSCH (or PUSCH) transmitted using the minislot may be referred to as PDSCH (or PUSCH) mapping type B.

The wireless frame, subframe, slot, minislot and symbol all represent the time unit when transmitting a signal. The radio frame, subframe, slot, minislot and symbol may use different names corresponding to each.

For example, one subframe may be called a transmission time interval (TTI), a plurality of consecutive subframes may be called TTI, and one slot or one minislot may be called TTI. You 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. The unit representing TTI may be called a slot, a mini slot, or the like instead of a subframe.

Here, TTI refers to, for example, the minimum time unit of scheduling in wireless communication. For example, in the LTE system, the base station schedules each terminal 20 to allocate radio resources (frequency bandwidth that can be used in each terminal 20, transmission power, etc.) in TTI units. The definition of TTI is not limited to this.

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

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

A TTI having a time length of 1 ms may be referred to as a normal TTI (TTI in LTE Rel. 8-12), a normal TTI, a long TTI, a normal subframe, a normal subframe, a long subframe, a slot, or the like. A TTI shorter than a normal TTI may be referred to as a shortened TTI, a short TTI, a partial TTI (partial or fractional TTI), a shortened subframe, a short subframe, a minislot, a subslot, a slot, or the like.

The long TTI (eg, normal TTI, subframe, etc.) may be read as a TTI having a time length of more than 1 ms, and the short TTI (eg, shortened TTI, etc.) may be read as a TTI less than the TTI length of the long TTI and 1 ms. It may be read as TTI having the above TTI length.

The resource block (RB) is a resource allocation unit in the time domain and the frequency domain, and may include one or a plurality of continuous subcarriers in the frequency domain. The number of subcarriers contained in the RB may be the same regardless of the numerology, and may be, for example, 12. The number of subcarriers contained in the RB may be determined based on numerology.

Further, the time domain of the RB may include one or more symbols, and may have a length of 1 slot, 1 mini slot, 1 subframe, or 1 TTI. Each 1TTI, 1 subframe, etc. may be composed of one or a plurality of resource blocks.

One or more RBs include a physical resource block (PRB: Physical RB), a sub-carrier group (SCG: Sub-Carrier Group), a resource element group (REG: Resource Element Group), a PRB pair, an RB pair, and the like. May be called.

Further, the resource block may be composed of one or a plurality of resource elements (RE: Resource Element). For example, 1RE may be a radio resource area of 1 subcarrier and 1 symbol.

The bandwidth part (BWP: Bandwidth Part) (which may also be called partial bandwidth) may represent a subset of consecutive common resource blocks (RBs) for a certain neurology in a carrier. Here, the common RB may be specified by the index of the RB with respect to the common reference point of the carrier. PRBs may be defined in a BWP and numbered within that BWP.

The BWP may include a BWP for UL (UL BWP) and a BWP for DL (DL BWP). One or more BWPs may be set in one carrier for the terminal 20.

At least one of the configured BWPs may be active, and the terminal 20 does not have to assume that a predetermined signal / channel is transmitted or received outside the active BWP. In addition, "cell", "carrier" and the like in this disclosure may be read as "BWP".

The above-mentioned structures such as wireless frames, subframes, slots, mini slots and symbols are merely examples. For example, the number of subframes contained in a radio frame, the number of slots per subframe or radioframe, the number of minislots contained within a slot, the number of symbols and RBs contained in a slot or minislot, included in the RB. The number of subcarriers, the number of symbols in the TTI, the symbol length, the cyclic prefix (CP: Cyclic Prefix) length, and other configurations can be changed in various ways.

In the present disclosure, if articles are added by translation, for example, a, an and the in English, the disclosure may include the plural nouns following these articles.

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

Each aspect / embodiment described in the present disclosure may be used alone, in combination, or may be switched and used according to the execution. Further, the notification of predetermined information (for example, the notification of "being X") is not limited to the explicit one, but is performed implicitly (for example, the notification of the predetermined information is not performed). May be good.

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 may be implemented as amendments and modifications without departing from the spirit and scope of the present disclosure as determined by the description of the scope of claims. Therefore, the description of this disclosure is for purposes of illustration and does not have any limiting meaning to this disclosure.

10 Base station 110 Transmission unit 120 Reception unit 130 Setting unit 140 Control unit 20 Terminal 210 Transmission unit 220 Reception unit 230 Setting unit 240 Control unit 1001 Processor 1002 Storage device 1003 Auxiliary storage device 1004 Communication device 1005 Input device 1006 Output device

Claims

The overlap between a plurality of channels including at least one physical uplink shared channel and at least one physical uplink control channel is detected, and if a specific condition is satisfied, the overlap is resolved by a specific method. A control unit that determines which of the multiple channels to transmit,
A terminal having a transmission unit that transmits the channel determined to be transmitted to the base station.
The specific condition is that repeated transmission is set to at least one physical uplink shared channel among the plurality of channels, and one of the plurality of physical uplink shared channels and one of the physical uplinks are set. The control channel overlaps with the control channel at least in the time domain, and there is no data to be transmitted by the resource of at least one physical uplink shared channel among the plurality of channels, and the transmission of the physical uplink shared channel can be skipped. The terminal according to claim 1, wherein the priority of the logical channel or the priority in the physical layer is set for each of the plurality of channels.
The terminal according to claim 2, wherein the specific method is a method of resolving the overlap between the plurality of channels for each priority and then resolving the overlap between the plurality of channels having different priorities.
The specific method is a method of resolving the overlap relating to the channel having the higher priority among the plurality of channels, and then resolving the overlap relating to the channel having the lower priority among the plurality of channels. Item 2 The terminal.
The specific method is a method of dropping a channel having a low priority that overlaps with a channel having a high priority among the plurality of channels, and then resolving the overlap between the plurality of channels for each priority. The terminal according to claim 2.
The overlap between a plurality of channels including at least one physical uplink shared channel and at least one physical uplink control channel is detected, and if a specific condition is satisfied, the overlap is resolved by a specific method. A control procedure that determines which of the multiple channels to transmit, and
A communication method in which a terminal executes a transmission procedure for transmitting a channel determined to be transmitted to a base station.