Method, device and system for indicating and obtaining number of pucch repetitions

Patent metadata

Field	Value
Publication number	US-12200712-B2
Application number	US-202118271361-A
Country	US
Kind code	B2
Filing date	Jul 29, 2021
Priority date	Jan 8, 2021
Publication date	Jan 14, 2025
Grant date	Jan 14, 2025

Abstract

The present disclosure relates to a method, device and system for indicating and obtaining a number of PUCCH repetitions. The method includes: configuring a plurality of physical uplink control channel (PUCCH) resources for a user equipment (UE) through radio resource control signaling; determining a number of repetitions corresponding to each PUCCH resource of the plurality of PUCCH resources by using a predefined rule; determining a current number of repetitions of a PUCCH transmission by the UE; determining a current resource index number of a resource for the PUCCH transmission by the UE corresponding to the current number of repetitions; and sending the current resource index number to the UE, to indicate the current number of repetitions, so that UE decodes the received current resource index number and determines the current number of repetitions.

First claim

What is claimed is:

1. A method for indicating a number of PUCCH repetitions, comprising:
configuring a plurality of physical uplink control channel (PUCCH) resources for a user equipment (UE) through radio resource control signaling;
determining a number of repetitions corresponding to each PUCCH resource of the plurality of PUCCH resources by using a predefined rule;
determining a current number of repetitions of a PUCCH transmission by the UE;
determining a current resource index number of a resource for the PUCCH transmission by the UE corresponding to the current number of repetitions; and
sending the current resource index number to the UE, to indicate the current number of repetitions, so that UE decodes the received current resource index number and determines the current number of repetitions;
wherein the determining a number of repetitions corresponding to each PUCCH resource of the plurality of PUCCH resources by using a predefined rule comprises:
classifying all the PUCCH resources according to PUCCH formats to obtain one or more classifications; and
determining the number of repetitions corresponding to each PUCCH resource in each of the classifications;
wherein the determining a number of repetitions corresponding to each PUCCH resource comprises:
determining a repetition parameter corresponding to each PUCCH resource; and
determining a number of repetitions corresponding to each repetition parameter;
wherein the determining a repetition parameter corresponding to each PUCCH resource comprises:
setting a first serial number of each repetition parameter in a repetition parameter set of a PUCCH;
sorting all PUCCH resource index numbers in each of the classifications, to obtain a second serial number of each PUCCH resource index number;
determining a first serial number of a repetition parameter corresponding to the second serial number of the each PUCCH resource index number; and
taking the repetition parameter of the first serial number corresponding to the second serial number as a repetition parameter corresponding to the each PUCCH resource index number.

2. The method for indicating a number of PUCCH repetitions according to claim 1 , wherein the sending the current resource index number to UE comprises:
sending the current resource index number to UE through a PUCCH resource indicator of downlink control information.

3. The method for indicating a number of PUCCH repetitions according to claim 1 , wherein the determining a first serial number of a repetition parameter corresponding to the second serial number of the each PUCCH resource index number comprises:
performing a remainder operation on the second serial number of the each PUCCH resource index number and a sum of elements of a repetition parameter set;
determining the first serial number of the repetition parameter according to the remainder in a case where the remainder is not zero; and
determining the first serial number of the repetition parameter according to the sum of the elements of the repetition parameter set in a case where the remainder is zero.

4. The method for indicating a number of PUCCH repetitions according to claim 1 , wherein:
the repetition parameter set is a predefined repetition number set; and
the determining the number of repetitions corresponding to each repetition parameter comprises taking each repetition parameter in the repetition parameter set as the number of repetitions.

5. The method for indicating a number of PUCCH repetitions according to claim 1 , wherein the determining a number of repetitions corresponding to each repetition parameter comprises:
configuring the number of repetitions of a PUCCH resource in each PUCCH format; and
setting each repetition parameter in the repetition parameter set as an offset value relative to the repetition number of a format of the PUCCH within a predefined repetition number set.

6. A method for obtaining a number of PUCCH repetitions, comprising:
receiving resource configuration information of a plurality of physical uplink control channel (PUCCH) resources configured for a user equipment (UE) by a base station through radio resource control signaling;
receiving a current resource index number of a resource used by the UE for PUCCH transmission sent by the base station; and
decoding the received current resource index number by using a predefined rule to obtain a corresponding current number of repetitions;
wherein the decoding the received current resource index number by using a predefined rule to obtain a corresponding current number of repetitions comprises:
determining a corresponding repetition parameter according to the received current resource index number; and
determining a corresponding current number of repetitions according to the determined repetition parameter;
wherein the determining a corresponding repetition parameter according to the received current resource index number comprises:
determining a second serial number of the received current resource index number among all the PUCCH resource index numbers in a PUCCH format;
setting a first serial number of each repetition parameter in a repetition parameter set of PUCCH;
determining a first serial number of a repetition parameter corresponding to the second serial number of the current resource index number; and
taking the repetition parameter of the first serial number corresponding to the second serial number of the current resource index number as the repetition parameter corresponding to the current resource index number.

7. The method for obtaining a number of PUCCH repetitions according to claim 6 , wherein the determining a first serial number of a repetition parameter corresponding to the second serial number of the current resource index number comprises:
performing a remainder operation on the second serial number of a current resource index number and a sum of elements of a repetition parameter set repetition parameter set;
determining the first serial number of the corresponding repetition parameter according to the remainder in a case where the remainder is not zero; and
determining the first serial number of the corresponding repetition parameter according to a sum of elements of the repetition parameter set in a case where the remainder is zero.

8. The method for obtaining a number of PUCCH repetitions according to claim 6 , wherein the determining a corresponding current number of repetitions according to the determined repetition parameter comprises:
taking the determined repetition parameter as a corresponding current number of repetitions in a case where the repetition parameter set is a predefined repetition number set.

9. The method for obtaining a number of PUCCH repetitions according to claim 6 , wherein the determining a corresponding current number of repetitions according to the determined repetition parameter comprises:
determining a corresponding current number of repetitions according to the determined repetition parameter, a number of repetitions of a PUCCH resource in a PUCCH format and the predefined repetition number set in a case where each repetition parameter in the repetition parameter set is an offset value relative to the repetition number of a format of the PUCCH within a predefined repetition number set.

10. A base station, comprising:
a resource configuring module configured to configure a plurality of physical uplink control channel (PUCCH) resources for a user equipment (UE) through radio resource control signaling;
a correspondence relationship determining module configured to determine a number of repetitions corresponding to each PUCCH resource of the plurality of PUCCH resources by using a predefined r

Assignees

• China Telecom Co Ltd

Inventors

• Li Nanxi
• Zhu Jianchi
• Guo Jing
• Yin Hang
• She Xiaoming
• Chen Peng

Classifications

• H04W72/232

  the control data signalling from the physical layer, e.g. DCI signalling · CPC title

• H04L5/0094

  Indication of how sub-channels of the path are allocated · CPC title

• H04L1/1864

  ARQ related signaling (H04L1/1607 takes precedence) · CPC title

• H04L1/1858

  Transmission or retransmission of more than one copy of acknowledgement message · CPC title

• H04W72/21 Primary

  in the uplink direction of a wireless link, i.e. towards the network · CPC title