IP Library › Granted Patent US 12671551

Granted Patent B2

US 12671551 · App. 18/368,991 · Granted Jun 30, 2026

Wireless communication method, terminal device, and network device

Inventors: Yun Fang (Dongguan, CN); Zhihua Shi (Dongguan, CN); Wenhong Chen (Dongguan, CN); Yingpei Huang (Dongguan, CN); Jiejiao Tian (Dongguan, CN)

Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.

H04L5/0051 H04L5/0035 H04W72/232

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Quick Facts

Patent No.: US 12671551
App. No.: 18/368,991
Granted: Jun 30, 2026
Kind: B2

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Abstract

A wireless communication method is applied to a terminal device configured with two sounding reference signal (SRS) resource sets, and includes: receiving downlink control information (DCI), wherein the DCI includes first indication information; and performing, according to the first indication information, a single-transmission receive point (TRP) uplink transmission or multi-TRP uplink repeated transmissions; wherein the first indication information indicates one SRS resource set in the two SRS resource sets, thereby indicating to perform the single-TRP uplink transmission through an SRS resource in the one SRS resource set; or the first indication information indicates the two SRS resource sets, thereby indicating to perform the multi-TRP uplink repeated transmissions through SRS resources in the two SRS resource sets.

Claims (67)

1 . A wireless communication method, applied to a terminal device configured with two sounding reference signal (SRS) resource sets, comprising:

receiving downlink control information (DCI), wherein the DCI comprises first indication information; and

performing, according to the first indication information, a single-transmission receive point (TRP) uplink transmission or multi-TRP uplink repeated transmissions;

wherein the two SRS resource sets comprises a first SRS resource set and a second SRS resource set, values of the first indication information comprise at least a first value indicating the first SRS resource set, a second value indicating the second SRS resource set, and a third value indicating the first SRS resource set and the second SRS resource set; the first indication information, taking the first or second value, indicates one SRS resource set in the two SRS resource sets, thereby indicating to perform the single-TRP uplink transmission through an SRS resource in the one SRS resource set; and the first indication information, taking the third value, indicates the two SRS resource sets, thereby indicating to perform the multi-TRP uplink repeated transmissions through SRS resources in the two SRS resource sets,

wherein,

if the first indication information sequentially indicates the first SRS resource set and the second SRS resource set, the first SRS resource set corresponds to an odd-numbered uplink repeated transmission in the multi-TRP uplink repeated transmissions, and the second SRS resource set corresponds to an even-numbered uplink repeated transmission in the multi-TRP uplink repeated transmissions; or,

if the first indication information sequentially indicates the second SRS resource set and the first SRS resource set, the second SRS resource set corresponds to the odd-numbered uplink repeated transmission, and the first SRS resource set corresponds to the even-numbered uplink repeated transmission.

2 . The method according to claim 1 , wherein,

if the first indication information indicates the two SRS resource sets, the DCI further comprises two SRI indication fields, and the two SRI indication fields are in one-to-one correspondence with the two SRS resource sets; or,

if the first indication information indicates the two SRS resource sets, one SRS resource set in the two SRS resource sets comprises one SRS resource, and another SRS resource set comprises multiple SRS resources, the DCI further comprises one SRI indication field, and the one SRI indication field corresponds to the another SRS resource set; or,

if the first indication information indicates the two SRS resource sets, and each of the two SRS resource sets comprises one SRS resource, the DCI does not comprise any SRI indication field.

3 . The method according to claim 2 , wherein,

if the first indication information sequentially indicates the first SRS resource set and the second SRS resource set in the two SRS resource sets, and the DCI comprises the two SRI indication fields, the first SRS resource set corresponds to a first SRI indication field in the two SRI indication fields, and the second SRS resource set corresponds to a second SRI indication field in the two SRI indication fields; or,

if the first indication information sequentially indicates the second SRS resource set and the first SRS resource set, the second SRS resource set corresponds to the first SRI indication field, and the first SRS resource set corresponds to the second SRI indication field.

4 . The method according to claim 1 , wherein,

if the first indication information indicates the two SRS resource sets, and the multi-TRP uplink repeated transmissions are in a codebook-based uplink transmission mode, the DCI further comprises two transmission precoding matrix indicator (TPMI) indication fields, and the two TPMI indication fields are in one-to-one correspondence with the two SRS resource sets.

5 . The method according to claim 4 , wherein,

if the first indication information sequentially indicates the first SRS resource set and the second SRS resource set, the first SRS resource set corresponds to a first TPMI indication field in the two TPMI indication fields, and the second SRS resource set corresponds to a second TPMI indication field in the two TPMI indication fields; or,

if the first indication information sequentially indicates the second SRS resource set and the first SRS resource set, the second SRS resource set corresponds to the first TPMI indication field, and the first SRS resource set corresponds to the second TPMI indication field.

6 . The method according to claim 1 , wherein,

if the first indication information indicates the one SRS resource set, the DCI further comprises one SRI indication field, and an SRI carried in the one SRI indication field is configured to indicate the SRS resource in the one SRS resource set; or,

if the first indication information indicates the one SRS resource set, the DCI further comprises two SRI indication fields, wherein an SRI indication field in the two SRI indication fields carries an SRI and is configured to indicate the SRS resource in the one SRS resource set, and another SRI indication field is not configured to indicate any SRS resource; or,

if the first indication information indicates the one SRS resource set, and the one SRS resource set comprises one SRS resource, the DCI does not comprise any SRI indication field.

7 . The method according to claim 1 , wherein,

if the first indication information indicates the one SRS resource set, and the single-TRP uplink transmission is in a codebook-based uplink transmission mode, the DCI further comprises one TPMI indication field, and the one TPMI indication field carries a TPMI corresponding to the SRS resource in the one SRS resource set; or,

if the first indication information indicates the one SRS resource set, and the single-TRP uplink transmission is in a codebook-based uplink transmission mode, the DCI further comprises two TPMI indication fields, one TPMI indication field in the two TPMI indication fields carries a TPMI corresponding to the SRS resource in the one SRS resource set, and another TPMI indication field does not correspond to any SRS resource.

8 . A terminal device, being configured with two sounding reference signal (SRS) resource sets and comprising:

a transceiver, configured to receive downlink control information (DCI), wherein the DCI comprises first indication information; and

a processor, configured to perform, according to the first indication information, a single-transmission receive point (TRP) uplink transmission or multi-TRP uplink repeated transmissions;

wherein the two SRS resource sets comprises a first SRS resource set and a second SRS resource set, values of the first indication information comprise at least a first value indicating the first SRS resource set, a second value indicating the second SRS resource set, and a third value indicating the first SRS resource set and the second SRS resource set; and the first indication information, taking the first or second value, indicates one SRS resource set in the two SRS resource sets, thereby indicating to perform the single-TRP uplink transmission through an SRS resource in the one SRS resource set; and the first indication information, taking the third value, indicates the two SRS resource sets, thereby indicating to perform the multi-TRP uplink repeated transmissions through SRS resources in the two SRS resource sets,

wherein,

9 . The terminal device according to claim 8 , wherein,

if the first indication information indicates the two SRS resource sets, and each of the two SRS resource sets comprises one SRS resource, the DCI does not comprise any SRI indication field.

10 . The terminal device according to claim 9 , wherein,

11 . The terminal device according to claim 8 , wherein,

12 . A network device, comprising:

a transceiver, configured to send downlink control information (DCI) to a terminal device, wherein the DCI comprises first indication information, and the terminal device is configured with two sounding reference signal (SRS) resource sets;

wherein the two SRS resource sets comprises a first SRS resource set and a second SRS resource set, values of the first indication information comprise at least a first value indicating the first SRS resource set, a second value indicating the second SRS resource set, and a third value indicating the first SRS resource set and the second SRS resource set; and the first indication information, taking the first or second value, indicates one SRS resource set in the two SRS resource sets, thereby indicating to perform a single-transmission receive point (TRP) uplink transmission through an SRS resource in the one SRS resource set; and the first indication information, taking the third value, indicates the two SRS resource sets, thereby indicating to perform multi-TRP uplink repeated transmissions through SRS resources in the two SRS resource sets,

wherein,

13 . The network device according to claim 12 , wherein,

if the first indication information indicates the two SRS resource sets, and each of the two SRS resource sets comprises one SRS resource, the DCI does not comprise any SRI indication field.

14 . The network device according to claim 13 , wherein,

15 . The network device according to claim 12 , wherein,

16 . The network device according to claim 15 , wherein,

17 . The network device according to claim 12 , wherein,

if the first indication information indicates the one SRS resource set, and the one SRS resource set comprises one SRS resource, the DCI does not comprise any SRI indication field.

18 . The network device according to claim 12 , wherein,

if the first indication information indicates the one SRS resource set, and the single-TRP uplink transmission is in a codebook-based uplink transmission mode, the DCI further comprises two TPMI indication fields, one TPMI indication field in the two TPMI indication fields carries a TPMI corresponding to the SRS resource in the one SRS resource set, and another TPMI indication field does not correspond to any SRS resource.