US-12621834-B2 - Apparatus and method of wireless communication

US12621834B2US 12621834 B2US12621834 B2US 12621834B2US-12621834-B2

Abstract

An apparatus and a method of wireless communication are provided. The method by a user equipment (UE) includes determining, by the UE from a base station, a configuration of a physical uplink control channel (PUCCH) resource, wherein the PUCCH resource in frequency domain comprises one or more physical resource blocks (PRBs) and corresponds to a PUCCH format 0, a PUCCH format 1, or a PUCCH format 4. This can solve issues in the prior art, provide a method to boost a transmission power of PUCCH, provide a good communication performance, and/or provide high reliability.

Inventors

Hao Lin

Assignees

GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.

Dates

Publication Date: 20260505
Application Date: 20230620

Claims (19)

1 . A wireless communication method, by a user equipment (UE), comprising: determining, by the UE from a base station, a configuration of a physical uplink control channel (PUCCH) resource, wherein the PUCCH resource in frequency domain comprises one or more physical resource blocks (PRBs) and corresponds to a PUCCH format 0, a PUCCH format 1, or a PUCCH format 4; wherein a PUCCH resource determination follows a frequency hopping allocating the PUCCH resource backwards from an ending PRB of a bandwidth part (BWP).
2 . The method of claim 1 , wherein the PRBs are consecutive in the frequency domain, and the configuration of the PUCCH resource comprises a starting RB and/or a number of RBs used as an RB length.
3 . The method of claim 1 , wherein the configuration of the PUCCH resource comprises at least one of the followings: a PUCCH starting PRB index, a number of PRBs for PUCCH (L), or a PUCCH format, and wherein the PUCCH starting PRB index, the number of PRBs for PUCCH, and the PUCCH format are pre-defined in a configuration table.
4 . The method of claim 3 , wherein a PUCCH resource in frequency domain comprises L consecutive PRBs starting from the PUCCH starting PRB index, and a first PUCCH resource corresponding to a first PUCCH resource index is not overlapped in frequency domain with a second PUCCH resource corresponding to a second PUCCH resource index; and wherein the first PUCCH resource and the second PUCCH resource are adjacent in frequency domain, where the second PUCCH resource index is equal to the first PUCCH resource index plus Ncs, wherein the Ncs is the number of the cyclic shift indexes in the set of initial cyclic shift indexes.
5 . The method of claim 3 , wherein for consecutive PRBs in the frequency domain, the PUCCH starting PRB index for PUCCH resource in the frequency domain is determined by at least one of the following: the PRB offset, the number of PRBs for PUCCH, the PUCCH resource index (r PUCCH ), and N CS , wherein N CS is the number of initial cyclic shift indexes in the set of initial cyclic shift indexes.
6 . The method of claim 1 , wherein the PRBs are non-consecutive in the frequency domain, and for non-consecutive PRBs in the frequency domain, the configuration of the PUCCH resource comprises a starting RB, a number of RBs used as an RB length, and an RB interval between two RBs.
7 . The method of claim 6 , wherein the configuration of the PUCCH resource comprises at least one of the followings: a PUCCH starting PRB index, a number of PRBs for PUCCH, a PUCCH format, or a PRB interval.
8 . The method of claim 7 , wherein for non-consecutive PRBs in the frequency domain, the PUCCH starting PRB index for PUCCH resource in the frequency domain is determined by at least one of the following: the PRB offset, the number of PRBs for PUCCH, the PUCCH resource index (r PUCCH ), and N CS , wherein N CS is the number of initial cyclic shift indexes in the set of initial cyclic shift indexes.
9 . A wireless communication method by a base station, comprising: configuring, by the base station to a user equipment (UE), a configuration of a physical uplink control channel (PUCCH) resource, wherein the PUCCH resource in frequency domain comprises one or more physical resource blocks (PRBs) and corresponds to a PUCCH format 0, a PUCCH format 1, or a PUCCH format 4; wherein a PUCCH resource determination follows a frequency hopping allocating the PUCCH resource backwards from an ending PRB of a bandwidth part (BWP).
10 . The method of claim 9 , wherein the PRBs are consecutive in the frequency domain, and the configuration of the PUCCH resource comprises a starting RB and/or a number of RBs used as an RB length.
11 . The method of claim 9 , wherein the configuration of the PUCCH resource comprises at least one of the followings: a PUCCH starting PRB index, a number of PRBs for PUCCH (L), or a PUCCH format, and wherein the PUCCH starting PRB index, the number of PRBs for PUCCH, and the PUCCH format are pre-defined in a configuration table.
12 . The method of claim 9 , wherein the base station is configured to transmit the configuration of the PUCCH resource in system information.
13 . The method of claim 11 , wherein a PUCCH resource in frequency domain comprises L consecutive PRBs starting from the PUCCH starting PRB index, and a first PUCCH resource corresponding to a first PUCCH resource index is not overlapped in frequency domain with a second PUCCH resource corresponding to a second PUCCH resource index; and wherein the first PUCCH resource and the second PUCCH resource are adjacent in frequency domain, where the second PUCCH resource index is equal to the first PUCCH resource index plus Ncs, wherein the Nes is the number of the cyclic shift indexes in the set of initial cyclic shift indexes.
14 . The method of claim 11 , wherein for consecutive PRBs in the frequency domain, the PUCCH starting PRB index for PUCCH resource in the frequency domain is determined by at least one of the following: the PRB offset, the number of PRBs for PUCCH, the PUCCH resource index (r PUCCH ), and N CS , wherein N CS is the number of initial cyclic shift indexes in the set of initial cyclic shift indexes.
15 . The method of claim 9 , wherein the PRBs are non-consecutive in the frequency domain, and for non-consecutive PRBs in the frequency domain, the configuration of the PUCCH resource comprises a starting RB, a number of RBs used as an RB length, and an RB interval between two RBs.
16 . The method of claim 15 , wherein the configuration of the PUCCH resource comprises at least one of the followings: a PUCCH starting PRB index, a number of PRBs for PUCCH, a PUCCH format, or a PRB interval, and wherein the PUCCH starting PRB index, the number of PRBs for PUCCH, the PRB interval, and the PUCCH format are pre-defined in a configuration table.
17 . The method of claim 16 , wherein for non-consecutive PRBs in the frequency domain, the PUCCH starting PRB index for PUCCH resource in the frequency domain is determined by at least one of the following: the PRB offset, the number of PRBs for PUCCH, the PUCCH resource index (r PUCCH ), and N CS , wherein N CS is the number of initial cyclic shift indexes in the set of initial cyclic shift indexes.
18 . A user equipment (UE), comprising: a memory; a transceiver; and a processor coupled to the memory and the transceiver; wherein the processor is configured to determine from a base station, a configuration of a physical uplink control channel (PUCCH) resource, wherein the PUCCH resource in frequency domain comprises one or more physical resource blocks (PRBs) and corresponds to a PUCCH format 0, a PUCCH format 1, or a PUCCH format 4; wherein a PUCCH resource determination follows a frequency hopping allocating the PUCCH resource backwards from an ending PRB of a bandwidth part (BWP).
19 . A base station, comprising: a memory; a transceiver; and a processor coupled to the memory and the transceiver; wherein the processor is configured to configure to a user equipment (UE), a configuration of a physical uplink control channel (PUCCH) resource, wherein the PUCCH resource in frequency domain comprises one or more physical resource blocks (PRBs) and corresponds to a PUCCH format 0, a PUCCH format 1, or a PUCCH format 4; wherein a PUCCH resource determination follows a frequency hopping allocating the PUCCH resource backwards from an ending PRB of a bandwidth part (BWP).

Description

CROSS-REFERENCE TO RELATED APPLICATION This is a continuation of International Application No. PCT/IB2021/000077 filed on Jan. 15, 2021, which is incorporated herein by reference in its entirety. TECHNICAL FIELD The present disclosure relates to the field of communication systems, and more particularly, to an apparatus and a method of wireless communication, which can provide a good communication performance and/or high reliability. BACKGROUND An unlicensed spectrum is a shared spectrum. A communication device in different communication systems can use the unlicensed spectrum as long as the communication device meets regulatory requirements set by the country or region on the unlicensed spectrum and does not need to apply for a proprietary spectrum authorization from the government. In order to allow various communication systems that use the unlicensed spectrum for wireless communication to coexist friendly in the unlicensed spectrum, some countries or regions specify regulatory requirements that must be met to use the unlicensed spectrum. For example, the communication device follows the principle of “a channel access procedure (or called a listen before talk (LBT) procedure”, that is, the communication device needs to perform channel sensing before transmitting a signal on the channel Only when the LBT outcome shows that the channel is idle, the communication device can perform signal transmission, or otherwise, the communication device cannot perform the signal transmission. In order to ensure fairness, once the communication device successfully occupies the channel, a transmission duration cannot exceed the maximum channel occupancy time (MCOT). The LBT mechanism is also called channel access procedure. In a new radio (NR) release 16 (R16), there are different types of channel access procedures, e.g. type 1, type 2A, type 2B, and type 2C channel access procedures as described in a third generation partnership project (3GPP) technical specification (TS) 37.213. In new radio (NR) Release 15 and Release 16 systems, an operation frequency range is limited to below 52.6 GHz. To further boost a data throughput, future network can further envision using a higher frequency range, e.g. above 52.6 GHz, e.g. 60 GHz, is a shared spectrum. Moreover, the power spectrum density is limited in this frequency band. In this case, the PUCCH transmission robustness or coverage will be limited accordingly. Therefore, there is a need for an apparatus (such as a user equipment (UE) and/or a base station) and a method of wireless communication, which can solve issues in the prior art, provide a method to boost a transmission power of PUCCH, provide a good communication performance, and/or provide high reliability. SUMMARY An object of the present disclosure is to propose an apparatus (such as a user equipment (UE) and/or a base station) and a method of wireless communication, which can solve issues in the prior art, provide a method to boost a transmission power of PUCCH, provide a good communication performance, and/or provide high reliability. In a first aspect of the present disclosure, a method of wireless communication by a user equipment (UE) comprises determining, by the UE from a base station, a configuration of a physical uplink control channel (PUCCH) resource, wherein the PUCCH resource in frequency domain comprises one or more physical resource blocks (PRBs) and corresponds to a PUCCH format 0, a PUCCH format 1, or a PUCCH format 4. In a second aspect of the present disclosure, a method of wireless communication by a base station comprises configuring, by the base station to a user equipment (UE), a configuration of a physical uplink control channel (PUCCH) resource, wherein the PUCCH resource in frequency domain comprises one or more physical resource blocks (PRBs) and corresponds to a PUCCH format 0, a PUCCH format 1, or a PUCCH format 4. In a third aspect of the present disclosure, a user equipment comprises a memory, a transceiver, and a processor coupled to the memory and the transceiver. The processor is configured to determine from a base station, a configuration of a physical uplink control channel (PUCCH) resource, wherein the PUCCH resource in frequency domain comprises one or more physical resource blocks (PRBs) and corresponds to a PUCCH format 0, a PUCCH format 1, or a PUCCH format 4. In a fourth aspect of the present disclosure, a base station comprises a memory, a transceiver, and a processor coupled to the memory and the transceiver. The processor is configured to configure to a user equipment (UE), a configuration of a physical uplink control channel (PUCCH) resource, wherein the PUCCH resource in frequency domain comprises one or more physical resource blocks (PRBs) and corresponds to a PUCCH format 0, a PUCCH format 1, or a PUCCH format 4. In a fifth aspect of the present disclosure, a non-transitory machine-readable storage medium has stored thereon instructions that, when executed by a computer