JP2023182868A - Terminal, communication method, and base station - Google Patents

Abstract

To clarify operation of a terminal when one transmission opportunity of a plurality of transmission opportunities of CG PUSCH having repeated transmission setting and PUCCH are overlapped at least in a certain time domain.SOLUTION: A terminal comprises: a receiving unit that receives setting information on repeated transmission for uplink data; a control unit that, when one transmission opportunity of a plurality of transmission opportunities of repeated transmission for the uplink data and an uplink control channel for transmitting uplink control information are overlapped in a time domain, determines whether the uplink control information can be included in the uplink common channel to be transmitted at a transmission opportunity overlapped with the uplink control channel in the time domain; and a transmission unit that, when the control unit determines that the uplink data can be included in the uplink common channel, transmits the uplink control information via the uplink common channel.SELECTED DRAWING: Figure 5

Description

The present invention relates to terminals and base stations in wireless communication systems.

In 3GPP (3rd Generation Partnership Project), in order to further increase system capacity, further increase data transmission speed, further reduce delay in wireless sections, etc., 5G or NR (New Radio) is being developed. Studies are progressing on a wireless communication system called "NR" (hereinafter referred to as "NR"). In 5G, various wireless technologies and network architectures are being studied in order to meet the requirements of achieving a throughput of 10 Gbps or more while reducing the delay in the wireless section to 1 ms or less.

In New Radio (NR) of Release 15 of 3rd Generation Partnership Project (3GPP), Physical Uplink Control Channel (PUCCH) is Physical Uplink Shared. The operation of the terminal in the case where it overlaps with Channel (PUSCH) at least in the time domain is specified. .

3GPP TS 38.213 V16.3.0 (2020-09) 3GPP TS 38.331 V16.2.0 (2020-09)

There are restrictions on the start of Configured Grant (CG) PUSCH transmission. When PUCCH and PUSCH overlap at least in the time domain and the terminal skips PUSCH transmission, it is unclear how the terminal determines the transmission opportunity to start transmitting PUSCH, and furthermore, it is unclear how the terminal will determine the transmission opportunity to start transmitting PUSCH. The operation of the terminal after the transmission opportunity to start is unknown.

It is necessary to clarify the operation of the terminal when the PUSCH transmission opportunity and the PUCCH overlap at least in the time domain.

According to the disclosed technology, there is provided a receiving unit that receives configuration information regarding repeated transmission of uplink data, and an uplink unit that transmits uplink control information at a certain transmission opportunity among a plurality of transmission opportunities for the repeated transmission of uplink data. a control unit that determines whether the uplink control information can be included in an uplink shared channel transmitted at a transmission opportunity that overlaps with the uplink control channel in the time domain, when the uplink control channel and the control channel overlap in the time domain; and,
A terminal is provided, comprising: a transmitting unit that transmits the uplink control information on the uplink shared channel when the control unit determines that the uplink data can be included in the uplink shared channel.

According to the disclosed technology, the operation of a terminal when a PUSCH transmission opportunity and a PUCCH overlap at least in the time domain is clarified.

FIG. 1 is a diagram for explaining a wireless communication system in an embodiment of the present invention. FIG. 1 is a diagram for explaining a wireless communication system in an embodiment of the present invention. FIG. 1 is a diagram for explaining the basic operation of a wireless communication system in an embodiment of the present invention. It is a figure which shows the example when PUCCH and several PUSCH overlap in a time domain. FIG. 6 is a diagram illustrating an example in which a certain transmission opportunity among a plurality of transmission opportunities of CG PUSCH and PUCCH overlap in the time domain. FIG. 6 is a diagram illustrating an example in which a certain transmission opportunity among a plurality of transmission opportunities of CG PUSCH and PUCCH overlap in the time domain. FIG. 6 is a diagram illustrating an example in which a certain transmission opportunity among a plurality of transmission opportunities of CG PUSCH and PUCCH overlap in the time domain. 1 is a diagram showing an example of a functional configuration of a base station 10 in an embodiment of the present invention. It is a diagram showing an example of a functional configuration of a terminal 20 in an embodiment of the present invention. FIG. 2 is a diagram showing an example of the hardware configuration of a base station 10 or a terminal 20 in an embodiment of the present invention.

Embodiments of the present invention will be described below with reference to the drawings. Note that the embodiment described below is an example, and the embodiment to which the present invention is applied is not limited to the following embodiment.

Existing technology may be used as appropriate for the operation of the wireless communication system according to the embodiment of the present invention. The existing technology is, for example, existing NR or LTE, but is not limited to existing NR or LTE.

(System configuration)
FIG. 1 is a diagram for explaining a wireless communication system according to an embodiment of the present invention. A wireless communication system according to an embodiment of the present invention includes a base station 10 and a terminal 20, as shown in FIG. Although one base station 10 and one terminal 20 are shown in FIG. 1, this is just an example, and there may be a plurality of each.

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 a radio signal are defined in the time domain and the frequency domain, and 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, a TTI (Transmission Time Interval) in the time domain may be a slot, or a TTI may be a subframe.

The base station 10 can perform carrier aggregation in which a plurality of cells (a plurality of CCs (component carriers)) are bundled to communicate 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, etc. to the terminal 20. The synchronization signals are, for example, NR-PSS and NR-SSS. System information is transmitted, for example, on 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 via DL (Downlink), and receives the control signal or data from the terminal 20 via UL (Uplink). Note that here, what is transmitted on control channels such as PUCCH and PDCCH is called a control signal, and what is transmitted on shared channels such as PUSCH and PDSCH is called data. It is.

The terminal 20 is a communication device equipped with a wireless communication function, such as a smartphone, a mobile phone, a tablet, a wearable terminal, or a communication module for M2M (Machine-to-Machine). As shown in FIG. 1, the terminal 20 receives control signals or data from the base station 10 via DL, and transmits control signals or data to the base station 10 via UL, thereby receiving various types of information provided by the wireless communication system. Use communication services. Note that the terminal 20 may be called a UE, and the base station 10 may be called a gNB.

The terminal 20 can perform carrier aggregation in which a plurality of cells (a plurality of CCs (component carriers)) are bundled to communicate with the base station 10. In carrier aggregation, one PCell (primary cell) and one or more SCells (secondary cells) are used. Also, a PUCCH-SCell with PUCCH may be used.

FIG. 2 shows a configuration example of a wireless communication system when DC (dual connectivity) is implemented. As shown in FIG. 2, a base station 10A serving as an MN (Master Node) and a base station 10B serving as an SN (Secondary Node) are provided. Base station 10A and base station 10B are each connected to a core network. Terminal 20 can communicate with both base station 10A and base station 10B.

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

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

(Basic operation example)
With reference to FIG. 3, a basic operational example of the communication system according to the embodiment of the present invention will be described.

In S101, the base station 10 transmits configured grants (CG) and the like related to PUSCH transmission to the terminal 20 by RRC signaling, and the terminal 20 receives these configuration information.

In S102, the terminal 20 receives the DCI that activates CG PUSCH transmission from the base station 10, and in S103 transmits data using the PUSCH resource according to the setting of CG PUSCH transmission. In S104, the terminal 20 transmits HARQ-ACK in response to data reception to the base station 10. Note that HARQ-ACK may also be referred to as HARQ information, feedback information, or the like.

In the following examples, when two channels overlap in the time domain, it may mean that the timings of the two channels are exactly the same, and the timing of the two channels may be exactly the same, and the time resources (e.g., one or more symbols) It is also possible that all or part of the resources (which may be resources for shorter time units)) overlap.

In New Radio (NR) of Release 15 of 3rd Generation Partnership Project (3GPP), Physical Uplink Control Channel (PUCCH) is Physical Uplink Shared. The operation of the terminal 20 in the case where it overlaps with Channel (PUSCH) at least in the time domain is specified. There is.

In the case where PUCCH overlaps with PUSCH at least in the time domain, if Uplink Control Information (UCI) in PUCCH is Hybrid Automatic Repeat Request Acknowledgment (HARQ-ACK), , the terminal 20 includes the UCI in the PUSCH and (may be multiplexed).

When the PUCCH overlaps with the PUSCH at least in the time domain, if the UCI in the PUCCH is Channel State Information (CSI), the terminal 20 assigns the UCI to the PUSCH if the PUSCH does not include CSI. May be included (may be multiplexed). In this case, if the PUSCH includes CSI, the terminal 20 may drop the PUCCH and transmit the PUSCH without including (without multiplexing) the UCI in the PUCCH in the PUSCH.

When the PUCCH overlaps with the PUSCH at least in the time domain and the UCI in the PUCCH is Scheduling Request (SR), the terminal 20 assigns an uplink data channel (UL-SCH: Uplink-Shared Channel) to the PUSCH. If not included, PUSCH may be dropped and PUCCH may be transmitted. In this case, if the PUSCH includes an uplink data channel, the Medium Access Control (MAC) layer of the terminal 20 may perform processing related to PUCCH transmission and PUSCH transmission.

In 3GPP Release 15 NR, if there is no data to transmit, the terminal 20 does not need to transmit PUSCH (may skip transmission).

As the types of PUSCH, at least configured grant (CG) PUSCH and dynamic grant (DG) PUSCH are defined.

As the types of CG PUSCH, at least CG PUSCH configured in an upper layer (type-1 CG PUSCH) and CG PUSCH configured and activated in an upper layer (type-2 CG PUSCH) are defined.

DG PUSCH is scheduled using Downlink Control Information (DCI).

The terminal 20 does not need to transmit the CG PUSCH if there is no data to transmit. That is, as a default function, the terminal 20 can skip transmitting the CGPUSCH when there is no data to transmit.

Furthermore, when the upper layer parameter skipUplinkTxDynamic is set, the terminal 20 can skip the transmission of the DG PUSCH (it is not necessary to transmit the DG PUSCH).

In the 3GPP Release 15 NR, consideration was given to whether the terminal 20 should skip transmission of the PUSCH when the PUCCH overlaps with the PUSCH at least in the time domain.

When the PUCCH overlaps with the PUSCH at least in the time domain and the terminal 20 allows skipping the transmission of the PUSCH, it is assumed that the base station (gNB) attempts to decode the PUCCH and the PUSCH.

Here, when Carrier Aggregation (CA) is configured, the number of PUSCHs increases, so it is assumed that the base station attempts to decode a large number of PUSCHs.

When PUCCH overlaps with PUSCH at least in the time domain, if the terminal 20 does not allow skipping the transmission of PUSCH (that is, when all PUSCHs are transmitted), out of all the PUSCHs to be transmitted, Rules are defined regarding which PUSCH in which the UCI of the PUCCH is included (piggybacked).

FIG. 4 is a diagram illustrating an example where a PUCCH and a plurality of PUSCHs overlap in the time domain. In the example of FIG. 4, in the time domain, PUCCH overlaps with PUSCH of component carrier (CC) 0, PUSCH of CC1, and PUSCH of CC2. In this case, for example, the terminal 20 may include the UCI of PUCCH in the PUSCH of CC0 without skipping the transmission of PUSCH (that is, transmitting the PUSCH of CC0, the PUSCH of CC1, and the PUSCH of CC2). .

Regarding DG PUSCH, it is not assumed that the terminal 20 skips transmission of PUSCH. Furthermore, regarding CG PUSCH, although it is possible for the terminal 20 to skip transmission of PUSCH, in the 3GPP Release 15 NR, it is not assumed that a large number of CG PUSCHs will be configured.

Regarding the above-mentioned issues, 3GPP Release 16 NR stipulates the following contents.

In a case where a PUCCH and a plurality of PUSCHs overlap at least in the time domain, if a PUSCH with aperiodic CSI (Aperiodic-CSI) is included in the plurality of PUSCHs, the terminal 20 uses an aperiodic CSI. - PUCCH UCI may be included in PUSCH with CSI.

When PUCCH and multiple PUSCH overlap at least in the time domain, if DG PUSCH and CGPUSCH are included in the multiple PUSCH, the terminal 20 may include the UCI of PUCCH in DG PUSCH. good.

In a case where a PUCCH and a plurality of PUSCHs overlap at least in the time domain, if a plurality of PUSCHs corresponding to a plurality of serving cells are included in the plurality of PUSCHs, the terminal 20 The UCI of the PUCCH may be included in the PUSCH of the serving cell whose serving cell ID value is the smallest.

In a case where a PUCCH and a plurality of PUSCHs overlap at least in the time domain, if a plurality of PUSCHs corresponding to the same serving cell are included in the plurality of PUSCHs, the terminal 20 Among them, the PUCCH UCI may be included in the temporally earliest PUSCH.

Note that regarding the DG PUSCH, the terminal 20 determines a PUSCH that includes the UCI of the PUCCH, assuming that the terminal 20 transmits all PUSCHs, regardless of whether or not the transmission of the PUSCH is skipped. The terminal 20 cannot skip the transmission of the PUSCH that includes the UCI of the PUCCH, and always transmits the PUSCH (the MAC layer of the terminal 20 generates a MAC Protocol Data Unit (PDU)). Also in the case of CG PUSCH, the operation of the terminal 20 is assumed to be the same as in the case of DG PUSCH.

(About the assignment)
In a specific case where the PUCCH and any one of the plurality of PUSCHs overlap at least in the time domain, how does the terminal 20 perform the operation of including the UCI of the PUCCH in the PUSCH and the operation of skipping the transmission of the PUSCH? It is necessary to clarify how this should be handled.

As a specific case, for example, the following case 1 is assumed.

Case 1: A case in which the PUCCH and any one of the plurality of PUSCHs overlap at least in the time domain, and repetition is applied to the CG PUSCH.

When the base station sets/instructs repetition on the CG PUSCH (for example, push-AggregationFactor=n2, n4, or n8), the terminal 20 repeatedly transmits the CG PUSCH.

For example, when repetition is applied to CG PUSCH, the terminal 20 starts transmitting the transport block only at the first transmission occasion in the time direction among multiple transmission occasions of the transport block. You can.

If the terminal 20 does not start transmitting the transport block at the first transmission opportunity in the time direction, the terminal 20 transmits the transport block from the transmission opportunity after the first transmission opportunity in the time direction among the plurality of transmission opportunities. However, in this case, the transmission opportunities in which the terminal 20 can start transmitting transport blocks are limited to transmission opportunities in which the redundancy version (RV) is 0.

When a single slot PUCCH overlaps with a certain transmission opportunity among the plurality of transmission opportunities set in PUSCH repetition, the terminal 20 selects a PUSCH of the transmission opportunity that overlaps with the single slot PUCCH. The UCI may be included only in the UCI (UCI may be multiplexed).

As described above, there are restrictions on the start of CG PUSCH transmission.
When the PUCCH and PUSCH overlap at least in the time domain and the terminal 20 skips transmission of the PUSCH, it is unclear how the terminal 20 determines the transmission opportunity to start transmitting the PUSCH, and further The operation of the terminal 20 after the transmission opportunity to start transmission is unknown.

When a certain transmission opportunity among the plurality of transmission opportunities of CG PUSCH for which repeated transmission is set and PUCCH overlap at least in the time domain, the terminal 20 may perform a specific operation.

(Proposal 1)
If a certain transmission opportunity among the plurality of transmission opportunities of CG PUSCH for which repeated transmission is set overlaps with PUCCH at least in the time domain, the terminal 20 may start transmitting CG PUSCH regardless of the restrictions on the transmission opportunities that can start transmission of CG PUSCH. First, PUSCH including the UCI of PUCCH may be transmitted.

(1-1)
When a certain transmission opportunity among the plurality of transmission opportunities of CG PUSCH for which repeated transmission is set overlaps with the PUCCH at least in the time domain, the terminal 20 transmits a transmission that is earlier in time than the transmission opportunity that overlaps with the PUCCH. Even if the PUSCH is not transmitted on an occasion, the UCI of the PUCCH may be included in the PUSCH of the transmission occasion that overlaps with the PUCCH (may be multiplexed).

FIG. 5 is a diagram illustrating an example in which a certain transmission opportunity among a plurality of transmission opportunities of CG PUSCH set for repeated transmission and PUCCH overlap in the time domain. In the example of FIG. 5, four PUSCH transmission opportunities are set from the front in the time direction. The second PUSCH transmission opportunity from the front in the time domain overlaps with the PUCCH in the time domain. The terminal 20 does not transmit 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 second PUSCH transmission opportunity 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. The PUSCH may be included in the PUSCH of the second transmission opportunity, and the PUSCH may be transmitted. Thereafter, the terminal 20 does not need to transmit the PUSCH at the third and fourth transmission opportunities in the time direction.

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

(1-3)
When a certain transmission opportunity among the plurality of transmission opportunities of the CG PUSCH for which repeated transmission is set overlaps with the PUCCH at least in the time domain, the terminal 20 transmits the PUCCH to the PUCCH of the transmission opportunity that overlaps with the PUCCH. The MAC layer of the terminal 20 may include the UCI (may be multiplexed), and in this case, the MAC layer of the terminal 20 may include the A MAC PDU may be generated even if it is a MAC PDU that includes only a Buffer Status Report (BSR) and no data that can be used in a logical channel group, or a MAC PDU that includes only a padding BSR. In this case, the terminal 20 may set the RV to an RV corresponding to a PUSCH transmission opportunity that overlaps with the PUCCH in the time domain. 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 the plurality of transmission opportunities of the CG PUSCH for which repeated transmission is set overlaps with the PUCCH at least in the time domain, the terminal 20 transmits the PUCCH to the PUCCH of the transmission opportunity that overlaps with the PUCCH. The UCI may be included (or multiplexed), and in this case, the MAC layer of the terminal 20 may generate a MAC PDU even if there is no data to transmit. In this case, in the PUSCH transmission opportunity after the PUSCH transmission opportunity that overlaps with the relevant PUCCH, the terminal 20 includes the same MAC PDU as the MAC PDU included in the PUSCH of the transmission opportunity that overlapped with the relevant PUCCH (MAC PDU PUSCH may also be transmitted. Alternatively, the terminal 20 may include any MAC PDU (carry any MAC PDU) and transmit PUSCH at a PUSCH transmission opportunity after a PUSCH transmission opportunity that overlaps with the PUCCH. . Alternatively, the terminal 20 may not transmit PUSCH at a PUSCH transmission opportunity subsequent to a PUSCH transmission opportunity that overlaps with the PUCCH.

(Proposal 2)
When a certain transmission opportunity among the plurality of transmission opportunities of CG PUSCH for which repeated transmission is set overlaps with PUCCH at least in the time domain, the terminal 20 transmits the CG PUSCH based on the constraints regarding the transmission opportunity that can start transmitting the CG PUSCH. Then, it may be determined whether the UCI of the PUCCH can be included in the PUSCH of the transmission opportunity that overlaps with the PUCCH.

(2-1)
When a certain transmission opportunity among the multiple transmission opportunities of CG PUSCH for which repeated transmission is set and PUCCH overlap at least in the time domain, and based on the constraints on the transmission opportunity at which transmission of CG PUSCH can be started. , when the terminal 20 determines that it is possible to start transmitting the CG PUSCH in the transmission opportunity of the PUSCH that overlaps with the PUCCH, the terminal 20 determines that it is possible to start transmitting the CG PUSCH in the transmission opportunity that overlaps with the PUCCH in time. Even if the PUSCH is not transmitted in the transmission opportunity, the UCI of the PUCCH may be included in the PUSCH of the transmission opportunity that overlaps with the PUCCH (may be multiplexed).

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

(2-1-3)
In case (2-1) above, the MAC layer of the terminal 20 sends only MAC PDUs containing zero MAC Service Data Units (SDUs) and periodic Buffer Status Reports (BSRs) when there is no data to be transmitted (for example, MAC PDUs containing zero MAC Service Data Units (SDUs), periodic Buffer Status Reports (BSRs) A MAC PDU may be generated even if it is a MAC PDU containing no data that can be used in a logical channel group, or a MAC PDU containing only padding BSR). In this case, the terminal 20 may set the RV to an RV corresponding to a PUSCH transmission opportunity that overlaps with the PUCCH in the time domain. 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 (2-1) above, the MAC layer of the terminal 20 may generate a MAC PDU even if there is no data to transmit. In this case, in the PUSCH transmission opportunity after the PUSCH transmission opportunity that overlaps with the relevant PUCCH, the terminal 20 includes the same MAC PDU as the MAC PDU included in the PUSCH of the transmission opportunity that overlapped with the relevant PUCCH (MAC PDU PUSCH may also be transmitted. Alternatively, the terminal 20 may include any MAC PDU (carry any MAC PDU) and transmit PUSCH at a PUSCH transmission opportunity after a PUSCH transmission opportunity that overlaps with the PUCCH. . Alternatively, the terminal 20 may not transmit PUSCH at a PUSCH transmission opportunity subsequent to a PUSCH transmission opportunity that overlaps with the PUCCH.

(2-2)
When a certain transmission opportunity among the multiple transmission opportunities of CG PUSCH for which repeated transmission is set overlaps with PUCCH at least in the time domain, the terminal 20 may determine that it is not possible to start transmitting the CG PUSCH in a PUSCH transmission opportunity that overlaps with the PUCCH.

(2-2-1)
When a certain transmission opportunity among multiple transmission opportunities of CG PUSCH for which repeated transmission is set overlaps with PUCCH at least in the time domain, the transmission opportunity of PUSCH that overlaps with the PUCCH in the time domain occurs earlier in the time direction. If the PUSCH is not transmitted during the PUSCH transmission opportunity, the terminal 20 determines that the UCI of the PUCCH cannot be included in the PUSCH of the transmission opportunity that overlaps with the PUCCH (cannot be multiplexed). Good too. In this case, the terminal 20 may skip PUSCH transmission at a later PUSCH transmission opportunity in the time domain than the PUSCH transmission opportunity that overlaps with the PUCCH in the time domain (no PUSCH transmission is required). good).

FIG. 6 is a diagram illustrating an example in which a certain transmission opportunity among a plurality of transmission opportunities of CG PUSCH for which repeated transmission is set overlaps with 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 second PUSCH transmission opportunity 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. Among the four transmission opportunities shown in the example of FIG. 6, the terminal 20 detects that the second PUSCH transmission opportunity from the front in the time direction overlaps with the PUCCH in the time domain, Since PUSCH is not transmitted in the first transmission opportunity regarding the example time, it may be determined that the UCI of PUCCH cannot be included in the PUSCH in the second transmission opportunity. Thereafter, the terminal 20 does not need to transmit the PUSCH at the third and fourth transmission opportunities in the time direction.

(2-2-2)
When a certain transmission opportunity among multiple transmission opportunities of CG PUSCH for which repeated transmission is set overlaps with PUCCH at least in the time domain, the transmission opportunity of PUSCH that overlaps with the PUCCH in the time domain occurs earlier in the time direction. If the PUSCH is transmitted at a PUSCH transmission opportunity, the terminal 20 may determine that it is possible to include (multiplex) the UCI of the PUCCH in the PUSCH of the transmission opportunity that overlaps with the PUCCH. .

(Proposal 3)
When a certain transmission opportunity among the plurality of transmission opportunities of CG PUSCH for which repeated transmission is set overlaps with the PUCCH at least in the time domain, the terminal 20 transmits a transmission that is earlier in time than the transmission opportunity that overlaps with the PUCCH. It may be determined whether the UCI of the PUCCH can be included in the PUSCH of the transmission opportunity that overlaps with the PUCCH, based on whether the PUSCH is transmitted in the occasion.

(3-1)
If a certain transmission opportunity among multiple transmission opportunities of CG PUSCH for which repeated transmission is set overlaps with PUCCH 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 some cases, the terminal 20 may determine that the UCI of the PUCCH can be included in the PUSCH of the transmission opportunity that overlaps with the PUCCH.

(3-1-2)
If a certain transmission opportunity among multiple transmission opportunities of CG PUSCH for which repeated transmission is set overlaps with PUCCH 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 some cases, the terminal 20 may include (may multiplex) the UCI of the PUCCH in the PUSCH of the transmission opportunity that overlaps with the PUCCH, and in this case, the MAC layer of the terminal 20 may May be generated.

(3-1-3)
If a certain transmission opportunity among multiple transmission opportunities of CG PUSCH for which repeated transmission is set overlaps with PUCCH 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 some cases, the terminal 20 may include (may multiplex) the UCI of the PUCCH in the PUSCH of the transmission opportunity that overlaps with the PUCCH, and in this case, the MAC layer of the terminal 20 may include the UCI of the PUCCH to be transmitted. A MAC PDU may be generated even if there is no MAC PDU. In this case, in the PUSCH transmission opportunity after the PUSCH transmission opportunity that overlaps with the relevant PUCCH, the terminal 20 includes the same MAC PDU as the MAC PDU included in the PUSCH of the transmission opportunity that overlapped with the relevant PUCCH (MAC PDU PUSCH may also be transmitted. Alternatively, the terminal 20 may include any MAC PDU (carry any MAC PDU) and transmit PUSCH at a PUSCH transmission opportunity after a PUSCH transmission opportunity that overlaps with the PUCCH. . Alternatively, the terminal 20 may not transmit PUSCH at a PUSCH transmission opportunity subsequent to a PUSCH transmission opportunity that overlaps with the PUCCH.

When a certain transmission opportunity out of multiple transmission opportunities of CG PUSCH for which repeated transmission is set overlaps with PUCCH at least in the time domain, the terminal 20 determines whether the transmission opportunity that overlaps with the PUCCH in the time domain is a repeat transmission. It may be determined that this is not the first transmission opportunity in terms of time.

(3-2-1)
A case where a certain transmission opportunity among multiple transmission opportunities of CG PUSCH for which repeated transmission is set and PUCCH overlap at least in the time domain, and the transmission opportunity that overlaps with the PUCCH in the time domain is related to the time of repeated transmission. In the case where it is determined that it is not the first transmission opportunity, if the terminal 20 transmits PUSCH at a transmission opportunity that is earlier in the time direction than the transmission opportunity that overlaps with the PUCCH in the time domain, the terminal 20 transmits the PUSCH on the PUCCH. 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 in the time domain. In this case, the terminal 20 may skip PUSCH transmission at a later PUSCH transmission opportunity in the time domain than the PUSCH transmission opportunity that overlaps with the PUCCH in the time domain (no PUSCH transmission is required). good).

(3-2-2)
A case where a certain transmission opportunity among multiple transmission opportunities of CG PUSCH for which repeated transmission is set and PUCCH overlap at least in the time domain, and the transmission opportunity that overlaps with the PUCCH in the time domain is related to the time of repeated transmission. In the case where it is determined that it is not the first transmission opportunity, if the terminal 20 transmits PUSCH at a transmission opportunity that is earlier in the time direction than the transmission opportunity that overlaps with the PUCCH in the time domain, the terminal 20 transmits the PUSCH on the PUCCH. It may be determined that it is possible to include the UCI of the PUCCH in the PUSCH of the transmission opportunity that overlaps in the time domain (multiplexing is possible).

FIG. 7 is a diagram illustrating an example in which a certain transmission opportunity among a plurality of transmission opportunities of CG PUSCH set for repeated transmission and 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 second PUSCH transmission opportunity 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 need to transmit the PUSCH at the second PUSCH transmission opportunity from the front in the time direction among the four transmission opportunities shown in the example of FIG. 7 . Thereafter, the terminal 20 does not need to transmit the PUSCH at the third and fourth transmission opportunities in the time direction.

In the above-described embodiment, an example of the operation of the terminal 20 is described in the case where, in the case of repeated transmission of the GC PUSCH, one of the plurality of PUSCH transmission opportunities overlaps with the PUCCH in the time domain. However, the embodiment is not limited to the case of repeated transmission of CG PUSCH, but 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 transmission of all PUSCHs or may transmit all PUSCHs.

In the case of repeated transmission of DG PUSCH, as described above, it is possible to transmit from among multiple PUSCH transmission opportunities from an intermediate transmission opportunity in the time direction, and how to handle subsequent transmission opportunities in the time direction. It is possible to apply the embodiment.

Although FIGS. 5 to 7 show examples in which CG PUSCH is repeatedly transmitted in slot units, the present embodiment is not limited to this example. For example, repeated transmission of CG PUSCH may be performed on a symbol-by-symbol basis. Note that the case where CG PUSCH is repeatedly transmitted in units of slots may be referred to as PUSCH repetition type A, and the case where CG PUSCH is repeatedly transmitted in units of symbols may be referred to as PUSCH repetition type B.

In PUSCH repetition type B, when a plurality of actual repetitions are determined from the nominal repetition by checking the invalid symbol, the above embodiment may be applied to the actual repetitions.

The above-described embodiments may target only PUCCHs that do not perform repeated transmissions, or may target PUCCHs that perform repetitive transmissions.

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

According to the embodiment described above, in a specific case where the PUCCH and any one of the plurality of PUSCHs overlap at least in the time domain, the terminal 20 performs the operation of including the UCI of the PUCCH in the PUSCH. The operation of skipping PUSCH transmission is clarified. The operation of the terminal 20 to include the UCI of the PUCCH in the PUSCH can be the same as when the PUSCH is not repeatedly transmitted. Further, when the terminal 20 performs an operation in which the UCI of the PUCCH is not included in the PUSCH, unnecessary (or requiring additional functions) PUSCH transmission can be avoided.

(Device configuration)
Next, an example of the functional configuration of the base station 10 and terminal 20 that execute the processes and operations described above will be described. The base station 10 and the terminal 20 include functions to implement Proposals 1 to 3 described above. However, the base station 10 and the terminal 20 may each be provided with only the function of any one of Proposals 1 to 3.

<Base station 10>
FIG. 8 is a diagram showing an example of the functional configuration of the base station 10. As shown in FIG. As shown in FIG. 8, base station 10 includes a transmitting section 110, a receiving section 120, a setting section 130, and a control section 140. The functional configuration shown in FIG. 8 is only an example. As long as the operations according to the embodiments of the present invention can be executed, the functional divisions and functional parts may have any names. The transmitting section 110 and the receiving section 120 may also be called a communication section.

The transmitting 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, for example, information on a higher layer from the received signals. Further, the transmitter 110 has a function of transmitting NR-PSS, NR-SSS, NR-PBCH, DL/UL control signals, DL data, etc. to the terminal 20. Furthermore, the transmitter 110 transmits the setting information and the like described in Proposals 1 and 2.

The setting unit 130 stores preset setting information and various setting information to be sent to the terminal 20 in a storage device, and reads them from the storage device as necessary. The control unit 140 performs, for example, resource allocation, overall control of the base station 10, and the like. Note that the functional unit related to signal transmission in the control unit 140 may be included in the transmitting unit 110, and the functional unit related to signal reception in the control unit 140 may be included in the receiving unit 120. Further, the transmitter 110 and the receiver 120 may be called a transmitter and a receiver, respectively.

<Terminal 20>
FIG. 9 is a diagram showing an example of the functional configuration of the terminal 20. As shown in FIG. 9, the terminal 20 includes a transmitting section 210, a receiving section 220, a setting section 230, and a control section 240. The functional configuration shown in FIG. 9 is only an example. As long as the operations according to the embodiments of the present invention can be executed, the functional divisions and functional parts may have any names. The transmitting section 210 and the receiving section 220 may also be called a communication section.

The transmitter 210 creates a transmission signal from the transmission data and wirelessly transmits the transmission signal. The receiving unit 220 wirelessly receives various signals and obtains higher layer signals from the received physical layer signals. Further, the transmitter 210 transmits HARQ-ACK, and the receiver 220 receives the setting information etc. described in Proposals 1 to 3.

The setting unit 230 stores various setting information received from the base station 10 by the receiving unit 220 in a storage device, and reads it from the storage device as necessary. The setting unit 230 also stores setting information that is set in advance. The control unit 240 controls the entire terminal 20 and the like. Note that a functional unit related to signal transmission in the control unit 240 may be included in the transmitting unit 210, and a functional unit related to signal reception in the control unit 240 may be included in the receiving unit 220. Further, the transmitter 210 and the receiver 220 may be called a transmitter and a receiver, respectively.

The embodiments describe at least the following terminals, communication methods, and base stations.
(Section 1)
a receiving unit that receives configuration information regarding repeated transmission of uplink data;
When a certain transmission opportunity among the plurality of transmission opportunities for repeated transmission of the uplink data and an uplink control channel for transmitting uplink control information overlap in the time domain, the uplink control information is transmitted to the uplink control channel. a control unit that determines whether or not it can be included in an uplink shared channel transmitted in overlapping transmission opportunities in the time domain;
a transmitting unit that transmits the uplink control information on the uplink shared channel when the control unit determines that the uplink data can be included in the uplink shared channel;
A terminal equipped with
(Section 2)
The control unit is configured to transmit the uplink data at a transmission opportunity that is earlier in the time direction than a transmission opportunity that overlaps with the uplink control channel in the time domain, among the plurality of transmission opportunities for repeatedly transmitting the uplink data. If not, determining that the uplink control information can be included in an uplink shared channel that is transmitted in a transmission opportunity that overlaps with the uplink control channel in the time domain;
The terminal described in paragraph 1.
(Section 3)
The control unit is capable of starting the repeated transmission of the uplink data at a transmission opportunity that overlaps in the time domain with the uplink control channel, among the plurality of transmission opportunities for the repeated transmission of the uplink data. In the case where it is determined, the uplink control information is not transmitted even if the uplink data is not transmitted in a transmission opportunity that is earlier in the time direction than the transmission opportunity that overlaps with the uplink control channel in the time domain. determining that it can be included in an uplink shared channel transmitted at a transmission opportunity that overlaps in the time domain with the uplink control channel;
The terminal described in paragraph 1.
(Section 4)
The control unit is configured such that, among the plurality of transmission opportunities for the repeated transmission of the uplink data, a transmission opportunity that overlaps with the uplink control channel in the time domain is the first transmission opportunity in the time domain for the repeated transmission of the uplink data. determining that the uplink control information can be included in an uplink shared channel transmitted in a transmission opportunity that overlaps in the time domain with the uplink control channel;
The terminal described in paragraph 1.
(Section 5)
receiving configuration information regarding repeated transmission of uplink data;
When a certain transmission opportunity among the plurality of transmission opportunities for repeated transmission of the uplink data and an uplink control channel for transmitting uplink control information overlap in the time domain, the uplink control information is transmitted to the uplink control channel. determining whether it can be included in an uplink shared channel transmitted in overlapping transmission opportunities in the time domain;
If it is determined that the uplink data can be included in the uplink shared channel, transmitting the uplink control information on the uplink shared channel;
A communication method using a terminal equipped with.
(Section 6)
a transmitting unit that transmits setting information regarding repeated transmission of uplink data;
In a terminal, when a certain transmission opportunity among the plurality of transmission opportunities for repeated transmission of the uplink data and an uplink control channel for transmitting uplink control information overlap in the time domain, the uplink control information is a receiving unit that receives the uplink control information on the uplink shared channel when it is determined that the uplink control information can be included in the uplink shared channel transmitted in a transmission opportunity that overlaps in the time domain with the control channel;
A base station equipped with

The configurations described in any of the above sections provide a technique that allows a terminal that has received data to appropriately transmit feedback information regarding data reception to a base station.

(Hardware configuration)
The block diagrams (FIGS. 8 and 9) used to explain the above embodiments show blocks in functional units. These functional blocks (components) are realized by any combination of at least one of hardware and software. Furthermore, the method for realizing each functional block is not particularly limited. That is, each functional block may be realized using one physically or logically coupled device, or may be realized using two or more physically or logically separated devices directly or indirectly (e.g. , wired, wireless, etc.) and may be realized using a plurality of these devices. The functional block may be realized by combining software with the one device or the plurality of devices.

Functions include judgment, decision, judgment, calculation, calculation, processing, derivation, investigation, exploration, confirmation, reception, transmission, output, access, resolution, selection, selection, establishment, comparison, assumption, expectation, consideration, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, allocation gning), but these are limited to I can't. For example, a functional block (configuration unit) that performs transmission is called a transmitting unit or a transmitter. In either case, as described above, the implementation method is not particularly limited.

For example, the base station 10, terminal 20, etc. in an embodiment of the present disclosure may function as a computer that performs processing of the wireless communication method of the present disclosure. FIG. 10 is a diagram illustrating an example of the hardware configuration of the base station 10 and the terminal 20 according to an embodiment of the present disclosure. The base station 10 and terminal 20 described above 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, etc. Good too.

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

Each function in the base station 10 and the terminal 20 is performed by loading predetermined software (programs) onto hardware such as the processor 1001 and the storage device 1002, so that the processor 1001 performs calculations and controls communication by the communication device 1004. This is realized by controlling at least one of reading and writing data in the storage device 1002 and the auxiliary storage device 1003.

The processor 1001, for example, operates an operating system to control the entire computer. The processor 1001 may be configured with a central processing unit (CPU) that includes interfaces with peripheral devices, a control device, an arithmetic device, registers, and the like. For example, the above-described control unit 140, control unit 240, etc. may be implemented by the processor 1001.

Further, the processor 1001 reads programs (program codes), software modules, data, etc. from at least one of the auxiliary storage device 1003 and the communication device 1004 to the storage device 1002, and executes various processes in accordance with the programs. As the program, a program that causes a computer to execute at least part of the operations described in the above embodiments is used. For example, the control unit 140 of the base station 10 shown in FIG. 8 may be realized by a control program stored in the storage device 1002 and operated on the processor 1001. Further, for example, the control unit 240 of the terminal 20 shown in FIG. 9 may be realized by a control program stored in the storage device 1002 and operated on the processor 1001. Although the various processes described above have been described as being executed by one processor 1001, they may be executed by two or more processors 1001 simultaneously or sequentially. Processor 1001 may be implemented by one or more chips. Note that the program may be transmitted from a network via a telecommunications line.

The storage device 1002 is a computer-readable recording medium, such as ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electrically Erasable Programmable ROM), or RAM. (Random Access Memory) etc. may be configured. The storage device 1002 may be called a register, cache, main memory, or the like. The storage device 1002 can store executable programs (program codes), software modules, and the like to implement a communication method according to an embodiment of the present disclosure.

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

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, etc. in order to realize at least one of frequency division duplex (FDD) and time division duplex (TDD). It may be composed of. For example, a transmitting/receiving antenna, an amplifier section, a transmitting/receiving section, a transmission path interface, etc. may be realized by the communication device 1004. The transmitting and receiving unit may be physically or logically separated into a transmitting unit and a receiving unit.

The input device 1005 is an input device (eg, keyboard, mouse, microphone, switch, button, sensor, etc.) that accepts input from the outside. The output device 1006 is an output device (for example, a display, a speaker, an LED lamp, etc.) that performs output to the outside. Note that 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 a bus 1007 for communicating information. The bus 1007 may be configured using a single bus, or may be configured using different buses for each device.

The base station 10 and the terminal 20 also include a microprocessor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), and a programmable logic device (PLD). ), FPGA (Field Programmable Gate Array), and other hardware 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 hardwares.

(Supplementary information on the embodiment)
Although the embodiments of the present invention have been described above, the disclosed invention is not limited to such embodiments, and those skilled in the art will understand various modifications, modifications, alternatives, replacements, etc. Probably. Although the invention has been explained using specific numerical examples to facilitate understanding of the invention, unless otherwise specified, these numerical values are merely examples, and any appropriate values may be used. The classification of items in the above explanation is not essential to the present invention, and matters described in two or more items may be used in combination as necessary, and matters described in one item may be used in another item. may be applied to the matters described in (unless inconsistent). The boundaries of functional units or processing units in the functional block diagram do not necessarily correspond to the boundaries of physical components. The operations of a plurality of functional sections may be physically performed by one component, or the operations of one functional section may be physically performed by a plurality of components. Regarding the processing procedures described in the embodiments, the order of processing may be changed as long as there is no contradiction. Although the base station 10 and the terminal 20 have been described using functional block diagrams for convenience of process description, such devices may be implemented in hardware, software, or a combination thereof. Software operated by the processor included in the base station 10 according to the embodiment of the present invention and software operated by the processor included in the terminal 20 according to the embodiment of the present invention are respectively random access memory (RAM), flash memory, and read-only memory. (ROM), EPROM, EEPROM, register, 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 aspects/embodiments described in this disclosure, and may be performed using other methods. For example, the information notification may be performed using physical layer signaling (e.g., DCI (Downlink Control Information), UCI (Uplink Control Information)), or upper layer signaling (e.g., RRC (Radio Resource Control) signaling). , MAC (Medium Access Control) signaling, It may be implemented by broadcast information (MIB (Master Information Block), SIB (System Information Block)), other signals, or a combination thereof. RRC signaling may also be called an RRC message, for example, RRC It may be a connection setup (RRC Connection Setup) message, an RRC Connection Reconfiguration (RRC Connection Reconfiguration) message, or the like.

Each aspect/embodiment described in this disclosure is applicable to LTE (Long Term Evolution), LTE-A (LTE-Advanced), SUPER 3G, IMT-Advanced, 4G (4th generation mobile communication system). m), 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), IEE 82 . 11 (Wi -Fi (registered trademark) )), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, UWB (Ultra-WideBand), Bluetooth (registered trademark), and other appropriate systems and systems that are extended based on these. It may be applied to at least one next generation system. Furthermore, a combination of a plurality of systems may be applied (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 this specification may be changed as long as there is no contradiction. For example, the methods described in this disclosure use an example order to present elements of the various steps and are not limited to the particular order presented.

In this specification, specific operations performed by the base station 10 may be performed by its upper node in some cases. In a network consisting of one or more network nodes including a base station 10, various operations performed for communication with a terminal 20 are performed by the base station 10 and other network nodes other than the base station 10 ( It is clear that this can be done by at least one of the following: for example, MME or S-GW (possible, but not limited to). Although the case where there is one network node other than the base station 10 is illustrated above, the other network node may be a combination of multiple other network nodes (for example, MME and S-GW). .

The information, signals, etc. described in this disclosure may be output from an upper layer (or lower layer) to a lower layer (or upper layer). It may be input/output via multiple network nodes.

The input/output information may be stored in a specific location (eg, memory) or may be managed using a management table. Information etc. to be input/output may be overwritten, updated, or additionally written. The output information etc. may be deleted. The input information etc. may be transmitted to other devices.

The determination in the present disclosure may be performed based on a value represented by 1 bit (0 or 1), a truth value (Boolean: true or false), or a comparison of numerical values (e.g. , comparison with a predetermined value).

Software includes instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, whether referred to as software, firmware, middleware, microcode, hardware description language, or by any other name. , should be broadly construed to mean an application, software application, software package, routine, subroutine, object, executable, thread of execution, procedure, function, etc.

Additionally, software, instructions, information, etc. may be sent and received via a transmission medium. For example, the software may use wired (coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), etc.) and/or wireless technologies (infrared, microwave, etc.) to access a website, When transmitted from a server or other remote source, these wired and/or wireless technologies are 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 technologies. For example, data, instructions, commands, information, signals, bits, symbols, chips, etc., which may be referred to throughout the above description, may refer to voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any of these. It may also be represented by a combination of

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

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

In addition, the information, parameters, etc. described in this disclosure may be expressed using absolute values, relative values from a predetermined value, or using other corresponding information. may be expressed. For example, radio resources may be indicated by an index.

The names used for the parameters described above are not restrictive in any respect. Furthermore, the mathematical formulas etc. using these parameters may differ from those explicitly disclosed in this disclosure. Since the various channels (e.g. PUSCH, 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 not limiting in any way. It's not a proper name.

In this disclosure, "Base Station (BS)," "wireless base station," "base station," "fixed station," "NodeB," "eNodeB (eNB)," and "gNodeB ( gNB)", "access point", "transmission point", "reception point", "transmission/reception point", "cell", "sector", " Terms such as "cell group", "carrier", "component carrier", etc. may be used interchangeably. A base station is sometimes referred to by terms such as macrocell, small cell, femtocell, and picocell.

A base station can accommodate one or more (eg, three) cells. If a base station accommodates multiple cells, the overall coverage area of the base station can be partitioned into multiple smaller areas, and each smaller area is divided into multiple subsystems (e.g., small indoor base stations (RRHs)). The term "cell" or "sector" refers to a part or all of the coverage area of a base station and/or base station subsystem that provides communication services in this coverage. refers to

In this disclosure, terms such as "mobile station (MS)," "user terminal," "user equipment (UE)," and "terminal" may be used interchangeably.

A mobile station is defined by a person skilled in the art as a subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, terminal , wireless terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable terminology.

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

Furthermore, the base station in the present disclosure may be replaced by a terminal. For example, a configuration in which communication between a base station and a terminal is replaced with communication between a plurality of terminals 20 (for example, may be called D2D (Device-to-Device), V2X (Vehicle-to-Everything), etc.) Each aspect/embodiment of the present disclosure may be applied. In this case, the terminal 20 may have the functions that the base station 10 described above has. Further, words such as "up" and "down" may be replaced with words corresponding to inter-terminal communication (for example, "side"). For example, uplink channels, downlink channels, etc. may be replaced with side channels.

Similarly, a terminal in the present disclosure may be replaced by a base station. In this case, a configuration may be adopted in which the base station has the functions that the above-described terminal has.

As used in this disclosure, the terms "determining" and "determining" may encompass a wide variety of operations. "Judgment" and "decision" include, for example, judging, calculating, computing, processing, deriving, investigating, and searching. y) (e.g., a search in a table, database, or other data structure), and assuming that an assertion has been made is a "judgment" or "decision." Also, "judgment" and "decision" refer to receiving (e.g., receiving information), transmitting (e.g., sending information), input, output, and access. (accessing) (for example, accessing data in memory) may include regarding the act as a "judgment" or "decision." In addition, "judgment" and "decision" mean that things such as resolving, selecting, choosing, establishing, and comparing are considered to be "judgment" and "decision." may be included. In other words, "judgment" and "decision" may include regarding some action as having been "judged" or "determined." Moreover, "judgment (decision)" may be read as "assuming", "expecting", "considering", etc.

The terms "connected", "coupled", or any variations thereof, refer to any connection or coupling, direct or indirect, between two or more elements and to each other. It may include the presence of one or more intermediate elements between two elements that are "connected" or "coupled." The bonds or connections between elements may be physical, logical, or a combination thereof. For example, "connection" may be replaced with "access." As used in this disclosure, two elements may include one or more electrical wires, cables, and/or printed electrical connections, as well as in the radio frequency domain, as some non-limiting and non-inclusive examples. , electromagnetic energy having wavelengths in the microwave and optical (both visible and non-visible) ranges.

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

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

As used in this disclosure, any reference to elements using the designations "first," "second," etc. does not generally limit the amount or order of those elements. These designations may be used in this disclosure as a convenient way to distinguish between two or more elements. Thus, reference to a first and second element does not imply that only two elements may be employed or that the first element must precede the second element in any way.

"Means" in the configurations of each of the above devices may be replaced with "unit", "circuit", "device", etc.

Where the terms "include", "including", and variations thereof are used in this disclosure, these terms are inclusive, as is the term "comprising". It is intended that Furthermore, the term "or" as used in this disclosure is not intended to be exclusive or.

A radio frame may be composed of one or more frames in the time domain. Each frame or frames in the time domain may be called a subframe. A subframe may also be composed of one or more slots in the time domain. A subframe may have a fixed time length (eg, 1 ms) that does not depend on numerology.

Numerology may be a communication parameter applied to the transmission and/or reception of a signal or channel. Numerology includes, for example, subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), number of symbols per TTI, radio frame configuration, and transceiver It may also indicate at least one of a specific filtering process performed in the frequency domain, a specific windowing process performed by the transceiver in the time domain, and the like.

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

A slot may include multiple minislots. Each minislot may be made up of one or more symbols in the time domain. Furthermore, a mini-slot may also be called a sub-slot. A minislot may be made up of fewer symbols than a slot. PDSCH (or PUSCH) transmitted in time units larger than minislots may be referred to as PDSCH (or PUSCH) mapping type A. PDSCH (or PUSCH) transmitted using minislots may be referred to as PDSCH (or PUSCH) mapping type B.

Radio frames, subframes, slots, minislots, and symbols all represent time units for transmitting signals. Other names may be used for the radio frame, subframe, slot, minislot, and symbol.

For example, one subframe may be called a Transmission Time Interval (TTI), multiple consecutive subframes may be called a TTI, and one slot or minislot may be called a TTI. You can. In other words, at least one of the subframe and TTI may be a subframe (1ms) in existing LTE, a period shorter than 1ms (for example, 1-13 symbols), or a period longer than 1ms. It may be. Note that the unit representing the TTI may be called a slot, minislot, etc. instead of a subframe.

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

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

Note that when one slot or one minislot is called a TTI, one or more TTIs (that is, one or more slots or one or more minislots) may be the minimum time unit for scheduling. Further, the number of slots (minislot number) that constitutes the minimum time unit of the scheduling may be controlled.

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

Note that long TTI (for example, normal TTI, subframe, etc.) may be read as TTI with a time length exceeding 1 ms, and short TTI (for example, short TTI, etc.) It may also be read as a TTI having the above TTI length.

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

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

Note that one or more RBs include a physical resource block (PRB), a sub-carrier group (SCG), a resource element group (REG), a PRB pair, an RB pair, etc. May be called.

Further, a resource block may be configured by one or more resource elements (REs). For example, 1 RE may be a radio resource region of 1 subcarrier and 1 symbol.

A Bandwidth Part (BWP) (which may also be referred to as a partial bandwidth, etc.) may refer to a subset of contiguous common resource blocks (RB) for a certain numerology in a certain carrier. Here, the common RB may be specified by an RB index based on a common reference point of the carrier. PRBs may be defined in a BWP and numbered within that BWP.

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

At least one of the configured BWPs may be active and the UE may not expect to transmit or receive a given signal/channel outside of the active BWP. Note that "cell", "carrier", etc. in the present disclosure may be replaced with "BWP".

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

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

In the present disclosure, the term "A and B are different" may mean "A and B are different from each other." Note that the term may also mean that "A and B are each different from C". Terms such as "separate" and "coupled" may also be interpreted similarly to "different."

Each aspect/embodiment described in this disclosure may be used alone, may be used in combination, or may be switched and used in accordance with execution. In addition, notification of prescribed information (for example, notification of "X") is not limited to being done explicitly, but may also be done implicitly (for example, not notifying the prescribed information). Good too.

Note that in the present disclosure, the SS block or CSI-RS is an example of a synchronization signal or a reference signal.

Although the present disclosure has been described in detail above, it is clear to those skilled in the art that the present disclosure is not limited to the embodiments described in the present disclosure. The present disclosure can be implemented as modifications and variations without departing from the spirit and scope of the present disclosure as determined by the claims. Therefore, the description of the present disclosure is for the purpose of illustrative explanation and is not intended to have any limiting meaning on the present disclosure.

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

Claims (6)

a receiving unit that receives configuration information regarding repeated transmission of uplink data;
When a certain transmission opportunity among the plurality of transmission opportunities for repeated transmission of the uplink data and an uplink control channel for transmitting uplink control information overlap in the time domain, the uplink control information is transmitted to the uplink control channel. a control unit that determines whether or not it can be included in an uplink shared channel transmitted in overlapping transmission opportunities in the time domain;
a transmitting unit that transmits the uplink control information on the uplink shared channel when the control unit determines that the uplink data can be included in the uplink shared channel;
A terminal equipped with The control unit is configured to transmit the uplink data at a transmission opportunity that is earlier in the time direction than a transmission opportunity that overlaps with the uplink control channel in the time domain, among the plurality of transmission opportunities for repeatedly transmitting the uplink data. If not, determining that the uplink control information can be included in an uplink shared channel that is transmitted in a transmission opportunity that overlaps with the uplink control channel in the time domain;
The terminal according to claim 1. The control unit is capable of starting the repeated transmission of the uplink data at a transmission opportunity that overlaps in the time domain with the uplink control channel, among the plurality of transmission opportunities for the repeated transmission of the uplink data. In the case where it is determined, the uplink control information is not transmitted even if the uplink data is not transmitted in a transmission opportunity that is earlier in the time direction than the transmission opportunity that overlaps with the uplink control channel in the time domain. determining that it can be included in an uplink shared channel transmitted at a transmission opportunity that overlaps in the time domain with the uplink control channel;
The terminal according to claim 1. The control unit is configured such that, among the plurality of transmission opportunities for the repeated transmission of the uplink data, a transmission opportunity that overlaps with the uplink control channel in the time domain is the first transmission opportunity in the time domain for the repeated transmission of the uplink data. determining that the uplink control information can be included in an uplink shared channel transmitted in a transmission opportunity that overlaps in the time domain with the uplink control channel;
The terminal according to claim 1. receiving configuration information regarding repeated transmission of uplink data;
When a certain transmission opportunity among the plurality of transmission opportunities for repeated transmission of the uplink data and an uplink control channel for transmitting uplink control information overlap in the time domain, the uplink control information is transmitted to the uplink control channel. determining whether it can be included in an uplink shared channel transmitted in overlapping transmission opportunities in the time domain;
If it is determined that the uplink data can be included in the uplink shared channel, transmitting the uplink control information on the uplink shared channel;
A communication method using a terminal equipped with. a transmitting unit that transmits setting information regarding repeated transmission of uplink data;
In a terminal, when a certain transmission opportunity among the plurality of transmission opportunities for repeated transmission of the uplink data and an uplink control channel for transmitting uplink control information overlap in the time domain, the uplink control information is a receiving unit that receives the uplink control information on the uplink shared channel when it is determined that the uplink control information can be included in the uplink shared channel transmitted in a transmission opportunity that overlaps in the time domain with the control channel;
A base station equipped with

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