# US 11,910,366 B2 · Method for receiving PUSCH in wireless communication system and apparatus therefor

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- Number: US 11,910,366 B2
- Document ID: US11910366B2
- Status: Granted
- Kind: B2
- Application number: 17/285,865
- Filed: 2019-10-31
- Published: 2021-11-11
- Granted: 2024-02-20
- Earliest claimed: 2018-11-01
- Assignees: LG Electronics Inc.
- Applicants: LG Electronics Inc.
- Inventors: Jiwon Kang; Jonghyun Park
- Web page: https://patentgrep.com/patent/US11910366B2

## CPC

- H04B 7/0456: Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
- H04W 72/0446: Resources in time domain, e.g. slots or frames
- H04B 7/06966: {using beam correspondence; using channel reciprocity, e.g. downlink beam training based on uplink sounding reference signal [SRS]}
- H04B 7/088: {using beam selection}
- H04L 1/08: by repeating transmission, e.g. Verdan system {(H04L1/1858 and H04L1/189 take precedence)}
- H04L 1/1819: {with retransmission of additional or different redundancy}
- H04L 5/0044: {Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH}
- H04L 5/0048: {Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091)}
- H04L 5/0094: {Indication of how sub-channels of the path are allocated}
- H04W 72/044: based on the type of the allocated resource
- H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal
- H04L 5/0023: {Time-frequency-space}
- H04B: TRANSMISSION
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)

## Abstract

A method for receiving, by a base station, a physical uplink shared channel (PUSCH) in a wireless communication system includes: transmitting a first message including information related to a configuration of a multi-TU PUSCH transmitted in a plurality of time units (TUs); transmitting a second message related to a spatial relation RS applied to the transmission of the multi-TU PUSCH; and receiving the multi-TU PUSCH. The plurality of time units (TUs) are classified into a plurality of TU groups, and the second message includes information indicating at least one spatial relation RS applied to each TU group among the plurality of TU groups.

## Claims

### Claim 1

A method for receiving, by a base station, a Physical Uplink Shared Channel (PUSCH) in a wireless communication system, the method comprising:
transmitting a first message including information related to a configuration of a the PUSCH;
transmitting a second message which is related to a spatial relation RS applied to a transmission of the PUSCH; and
receiving the PUSCH which is transmitted with a beam determined based on the spatial relation RS,
wherein the PUSCH is configured to be received repeatedly across a plurality of time units
wherein the plurality of time units based on a plurality of slot groups,
wherein the second message includes information for at least one spatial relation RS applied to each of the plurality of slot groups,
wherein the at least one spatial relation RS is based on at least one SRS Resource Indicator (SRI),
wherein the beam includes a plurality of beams determined for the plurality of slot groups, and
wherein the second message further includes information for at least one Transmission Precoding Matrix Indicator (TPMI) applied to each of the plurality of slot groups.

### Claim 2 (depends on 1)

The method of claim 1, wherein at least one spatial relation RS applied to the each slot group is related to at least one layer of all layers related to the transmission of the PUSCH.

### Claim 3 (depends on 2)

The method of claim 2, wherein the all layers are classified into a plurality of layer groups including at the at least one layer, and
wherein at least one spatial relation RS applied to each slot group is applied to each layer group among the plurality of layer groups.

### Claim 4 (depends on 2)

The method of claim 2, wherein at least one spatial relation RS applied to the each slot group is applied to the all layers.

### Claim 5 (depends on 1)

The method of claim 1, wherein the first message further includes a list of a plurality of spatial relation states,
wherein a constitution of each spatial relation state included in the list is configured by a multiple access control-control element (MAC CE), and
wherein the spatial relation state is comprised of at least one spatial relation RS applied to the plurality of slot groups.

### Claim 6 (depends on 5)

The method of claim 5, wherein the second message is Downlink Control Information (DCI), and
wherein the information for at least one spatial relation RS is related to any one spatial relation state of the plurality of spatial relation states.

### Claim 7 (depends on 1)

The method of claim 1, wherein the first message further includes information of spatial relation RSs applied to the plurality of slot groups, and
wherein the information for at least one spatial relation RS indicates a spatial relation RS to be applied as a default.

### Claim 8 (depends on 1)

The method of claim 1, wherein the first message further includes information on remaining spatial relation RSs other than at least one specific spatial relation RS of the spatial relation RSs applied to the plurality of slot groups, and
wherein the information for at least one spatial relation RS is related to the at least one specific spatial relation RS, and the specific spatial relation RS is applied to a specific slot group of the plurality of slot groups.

### Claim 9 (depends on 1)

The method of claim 1, wherein the at least one spatial relation RS is mapped to slots which belong to the each slot group and the mapped spatial relation RS is changed for each slot among the slots.

### Claim 10 (depends on 1)

The method of claim 1, wherein the at least one spatial relation RS is mapped to the slots which belong to the each slot group and the mapped spatial relation RS is changed for each slot group.

### Claim 11 (depends on 1)

The method of claim 1, wherein the at least one spatial relation RS is mapped to the slots which belong to the each slot group and the mapped spatial relation RS is changed every at least two slots of the slots.

### Claim 12 (depends on 1)

The method of claim 1, wherein the second message is (i) Downlink Control Information (DCI) for scheduling the transmission of the PUSCH, or (ii) Downlink control information (DCI) or a Multiple Access Control (MAC) Control Element (CE) for activating semi-persistent transmission of the PUSCH.

### Claim 13 (depends on 1)

The method of claim 1, wherein the plurality of beams determined for the plurality of slot groups are related to a plurality of Transmission and Reception Points (TRPs).

### Claim 14

A base station for receiving a Physical Uplink Shared Channel (PUSCH) in a wireless communication system, the base station comprising:
one or more transceivers;
one or more processors; and
one or more memories operably connectable to the one or more processors, and storing instructions of performing operations based on being executed by the one or more processors,
wherein the operations comprise:
transmitting a first message including information related to a configuration of a the PUSCH,
transmitting a second message which is related to a spatial relation RS applied to a transmission of the PUSCH, and
receiving the PUSCH which is transmitted with a beam determined based on the spatial relation RS,
wherein the PUSCH is configured to be received repeatedly across a plurality of time units
wherein the plurality of time units are based on a plurality of slot groups,
wherein the second message includes information for at least one spatial relation RS applied to each of the plurality of slot groups,.
wherein the at least one spatial relation RS is based on at least one SRS Resource Indicator (SRI),
wherein the beam includes a plurality of beams determined for the plurality of slot groups, and
wherein the second message further includes information for at least one Transmission Precoding Matrix Indicator (TPMI) applied to each of the plurality of slot groups.

### Claim 15 (depends on 14)

The base station of claim 14, wherein the plurality of beams determined for the plurality of slot groups are related to a plurality of Transmission and Reception Points (TRPs).

### Claim 16

An apparatus comprising:
one or more memories; and
one or more processors functionally connected to the one or more memories,
wherein the one or more processors are configured to control the apparatus to:
transmit a first message including information related to a configuration of a the PUSCH,
transmit a second message which is related to a spatial relation RS applied to a transmission of the PUSCH, and
receive the PUSCH which is transmitted with a beam determined based on the spatial relation RS,
wherein the PUSCH is configured to be received repeatedly across a plurality of time units
wherein the plurality of time units are based on a plurality of slot groups,
wherein the second message includes information for at least one spatial relation RS applied to each of the plurality of slot groups,
wherein the at least one spatial relation RS is based on at least one SRS Resource Indicator (SRI),
wherein the beam includes a plurality of beams determined for the plurality of slot groups, and
wherein the second message further includes information for at least one Transmission Precoding Matrix Indicator (TPMI) applied to each of the plurality of slot groups.

### Claim 17 (depends on 16)

The apparatus of claim 16, wherein the plurality of beams determined for the plurality of slot groups are related to a plurality of Transmission and Reception Points (TRPs).
