Granted Patent B2

US 12,452,013 · App. 17/887,514 · Granted Oct 21, 2025

Inventors: Wenhong Chen (Guangdong, CN); Zhihua Shi (Guangdong, CN)

Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.

H04L5/0051H04W52/146H04W72/20

Abstract

Claims (52)

1. An uplink transmission control method, applied to user equipment, wherein the method comprises:

determining, according to an indication from a network device, a control resource set (CORESET) group index corresponding to a first sounding reference signal (SRS) resource set;

determining transmission parameters of an uplink signal which corresponds to a same CORESET group index as the first SRS resource set according to the first SRS resource set;

wherein determining the CORESET group index corresponding to the first SRS resource set comprises:

determining the corresponding CORESET group index according to an SRS resource set identification of the first SRS resource set;

wherein the uplink signal comprises a physical uplink shared channel (PUSCH);

a CORESET group index corresponding to the PUSCH is a CORESET group index of a CORESET where the PDCCH that carries the downlink control information (DCI) scheduling the PUSCH is located,

wherein determining the transmission parameters of the uplink signal which corresponds to the same CORESET group index as the first SRS resource set according to the first SRS resource set comprises:

determining transmission parameters of the PUSCH according to a third SRS resource; wherein the third SRS resource is an SRS resource determined from the first SRS resource set according to the sounding reference signal resource indication (SRI) information in DCI scheduling the PUSCH,

wherein determining the transmission parameters of the PUSCH according to the third SRS resource comprises:

determining a precoding matrix for transmitting the PUSCH based on a number of antenna ports of the third SRS resource and precoding matrix indication (PMI) information notified by a network device.

2. The method according to claim 1 , wherein the method further comprises:

setting a value of the CORESET group index to be a preset value if the user equipment cannot derive the CORESET group index corresponding to the first SRS resource set from configuration information of a network device.

3. The method according to claim 1 , wherein a plurality of the first SRS resource sets for obtaining downlink channel state information (CSI) correspond to a same CORESET group index, or a plurality of the first SRS resource sets for antenna switching correspond to a same CORESET group index.

4. The method according to claim 1 , wherein the transmission parameters comprise at least one of a precoding matrix, a number of antenna ports, a transmission beam, a power control parameter, and a transmission antenna panel.

5. An uplink transmission control method, applied to a network device, wherein the method comprises:

determining a control resource set (CORESET) group index corresponding to a first sounding reference signal (SRS) resource or a first SRS resource set;

indicating the control resource set (CORESET) group index corresponding to the first SRS resource set to user equipment, comprising:

indicating the corresponding CORESET group index via an SRS resource set identification of the first SRS resource set, wherein the CORESET group index corresponding to the first SRS resource set allows the user equipment to determine transmission parameters of an uplink signal which corresponds to a same CORESET group index as the first SRS resource set according to the first SRS resource set;

wherein the uplink signal comprises a physical uplink shared channel (PUSCH);

a CORESET group index corresponding to the PUSCH is a CORESET group index of a CORESET where the PDCCH that carries the downlink control information, DCI, scheduling the PUSCH is located,

wherein the first SRS resource set allows the user equipment to determine transmission parameters of the PUSCH according to a third SRS resource, which is an SRS resource determined from the first SRS resource set according to the sounding reference signal resource indication (SRI) information in DCI scheduling the PUSCH,

wherein the user equipment is allowed to perform:

determining a precoding matrix for transmitting the PUSCH based on a number of antenna ports of the third SRS resource and precoding matrix indication (PMI) information notified by a network device.

6. The method according to claim 5 , wherein a plurality of the first SRS resource sets for obtaining downlink channel state information (CSI) correspond to a same CORESET group index, or a plurality of the first SRS resource sets for antenna switching correspond to a same CORESET group index.

7. The method according to claim 5 , wherein the transmission parameters comprise at least one of a precoding matrix, a number of antenna ports, a transmission beam, a power control parameter, and a transmission antenna panel.

8. An uplink transmission control apparatus, applied to user equipment, wherein the apparatus comprises a processor and a memory storing computer program instructions, and the processor is configured to execute the computer program instructions to cause the apparatus to perform:

determining, according to an indication from a network device, a control resource set CORESET group index corresponding to a first sounding reference signal (SRS) resource set;

determining transmission parameters of an uplink signal of a same CORESET group index corresponding to the first SRS resource set according to the first SRS resource set;

wherein the processor is specifically configured to execute the computer program instructions to cause the apparatus to perform:

determining the corresponding CORESET group index according to an SRS resource set identification of the first SRS resource set;

wherein the uplink signal comprises a physical uplink shared channel (PUSCH);

a CORESET group index corresponding to the PUSCH is a CORESET group index of a CORESET where the PDCCH that carries the downlink control information (DCI) scheduling the PUSCH is located,

wherein the processor is specifically configured to execute the computer program instructions to cause the apparatus to perform:

determining transmission parameters of the PUSCH according to a third SRS resource; wherein the third SRS resource is an SRS resource determined from the first SRS resource set according to the sounding reference signal resource indication (SRI) information in DCI scheduling the PUSCH,

wherein the processor is specifically configured to execute the computer program instructions to cause the apparatus to perform:

determining a precoding matrix for transmitting the PUSCH based on a number of antenna ports of the third SRS resource and precoding matrix indication (PMI) information notified by a network device.

9. The uplink transmission control apparatus according to claim 8 , wherein the processor is specifically configured to execute the computer program instructions to cause the apparatus to:

set a value of the CORESET group index to be a preset value if the user equipment cannot derive the CORESET group index corresponding to the first SRS resource set from configuration information of a network device.

10. The uplink transmission control apparatus according to claim 8 , wherein a plurality of the first SRS resource sets for obtaining downlink CSI, or a plurality of the first SRS resource sets for antenna switching correspond to a same CORESET group index.

11. The uplink transmission control apparatus according to claim 8 , wherein the transmission parameters comprise at least one of a precoding matrix, a number of the antenna ports, a transmission beam, a power control parameter, and a transmission antenna panel.

12. An uplink transmission control apparatus, applied to a network device, wherein the apparatus comprises a processor and a memory storing computer program instructions, and the processor is configured to execute the computer program instructions to cause the apparatus to perform:

determining a control resource set (CORESET) group index corresponding to a first sounding reference signal (SRS) resource or a first SRS resource set;

indicating the control resource set (CORESET) group index corresponding to the first SRS resource set to user equipment, comprising:

indicating the corresponding CORESET group index via an SRS resource set identification of the first SRS resource set, wherein the CORESET group index corresponding to the first SRS resource set allows the user equipment to determine transmission parameters of an uplink signal which corresponds to a same CORESET group index as the first SRS resource set according to the first SRS resource set;

wherein the uplink signal comprises a physical uplink shared channel (PUSCH);

a CORESET group index corresponding to the PUSCH is a CORESET group index of a CORESET where the PDCCH that carries the downlink control information, DCI, scheduling the PUSCH is located,

wherein the first SRS resource set allows the user equipment to determine transmission parameters of the PUSCH according to a third SRS resource, which is an SRS resource determined from the first SRS resource set according to the sounding reference signal resource indication (SRI) information in DCI scheduling the PUSCH,

wherein the user equipment is allowed to perform:

determining a precoding matrix for transmitting the PUSCH based on a number of antenna ports of the third SRS resource and precoding matrix indication (PMI) information notified by a network device.

13. The uplink transmission control apparatus according to claim 12 , wherein a plurality of the first SRS resource sets for obtaining downlink channel state information (CSI) correspond to a same CORESET group index, or a plurality of the first SRS resource sets for antenna switching correspond to a same CORESET group index.

14. The uplink transmission control apparatus according to claim 12 , wherein the transmission parameters comprise at least one of a precoding matrix, a number of antenna ports, a transmission beam, a power control parameter, and a transmission antenna panel.

Assignments (1)

Continuity (2)

References Cited (14)