Granted Patent B2

US 12,652,088 · App. 18/270,387 · Granted Jun 9, 2026

Inventor: Yang Liu (Beijing, CN)

Assignee: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.

H04B7/0608H04L5/0051H04W28/20H04W36/06H04W72/0453H04W72/232

Abstract

Claims (56)

1 . A method for switching an antenna switching configuration, performed by a network device, the method comprising:

according to a target antenna switching configuration to which a terminal device is to switch on a current bandwidth part (BWP), sending indication information for activating a corresponding target sounding reference signal (SRS) resource configuration to the terminal device; wherein the indication information is carried in first medium access control (MAC) layer signaling, and the first MAC layer signaling is configured to activate the target SRS resource configuration in one or more SRS resource configurations, so that the terminal device sends one or more semi-persistent SRS resource sets or one or more semi-persistent SRS resources by adopting the target SRS resource configuration; and

determining termination of adopting of the target antenna switching configuration by the terminal device, and sending deactivation MAC layer signaling corresponding to the first MAC layer signaling and carrying the indication information to the terminal device;

wherein the target SRS resource configuration is one or more SRS resource sets corresponding to the target antenna switching configuration to which the terminal device is to switch, and the method further comprises:

for one or more antenna switching configurations supported by the terminal device on the current BWP, determining one or more SRS resource sets corresponding to each of the one or more antenna switching configurations; and

sending high-level signaling carrying first configuration information to the terminal device, wherein the first configuration information is SRS resource configurations corresponding to the one or more antenna switching configurations, each of the SRS resource configurations comprises one or more SRS resource sets, and each of the one or more SRS resource sets comprises at least one SRS resource;

or

wherein the target SRS resource configuration is at least part of SRS resources in one or more SRS resource sets corresponding to a reference antenna switching configuration of the terminal device on the current BWP, wherein the reference antenna switching configuration comprises an antenna switching configuration selected by the network device, or a highest antenna switching configuration corresponding to a highest capability supported by the terminal device.

2 . The method according to claim 1 , wherein in a case where the target SRS resource configuration is the at least part of SRS resources in the one or more SRS resource sets corresponding to the reference antenna switching configuration of the terminal device on the current BWP, the method further comprises:

determining the one or more SRS resource sets in an SRS resource configuration corresponding to the reference antenna switching configuration of the terminal device on the current BWP; and

sending high-level signaling carrying second configuration information to the terminal device, wherein the second configuration information is the SRS resource configuration corresponding to the reference antenna switching configuration, the SRS resource configuration corresponding to the reference antenna switching configuration comprises the one or more SRS resource sets, and each of the one or more SRS resource sets comprises at least one SRS resource.

3 . The method according to claim 1 , wherein

the indication information is a resource identifier (ID) of the target SRS resource configuration; or

the indication information is a bitmap in which one or more bits corresponding to the target SRS resource configuration are enabled; or

the indication information is one or more codepoints corresponding to one or more SRS resource sets or an SRS resource combination in the target SRS resource configuration; wherein a corresponding relationship between the one or more SRS resource sets or the SRS resource combination and the one or more codepoints is configured by the network device and notified to the terminal device.

4 . A non-transitory computer storage medium storing computer executable instructions; wherein after the computer executable instructions are executed by a processor, the method according to claim 1 is implemented.

5 . The method according to claim 1 , wherein the antenna switching configuration selected by the network device comprises an antenna switching configuration currently adopted by the terminal device.

6 . The method according to claim 1 , wherein the highest antenna switching configuration corresponding to the highest capability supported by the terminal device comprises an antenna switching configuration with both the largest number of reception antennas and the largest number of transmission antennas.

7 . A method for switching an antenna switching configuration, performed by a terminal device, the method comprising:

receiving indication information of a target sounding reference signal (SRS) resource configuration sent by a network device; and

according to the indication information of the target SRS resource configuration, switching to a corresponding target antenna switching configuration on a current bandwidth part (BWP);

wherein the indication information is carried in first medium access control (MAC) layer signaling, and the method further comprises:

activating the target SRS resource configuration in one or more SRS resource configurations;

sending one or more semi-persistent SRS resource sets or one or more semi-persistent SRS resources in the target SRS resource configuration by adopting the target antenna switching configuration;

receiving deactivation MAC layer signaling corresponding to the first MAC layer signaling and carrying the indication information; and

deactivating the one or more semi-persistent SRS resource sets or the one or more semi-persistent SRS resources in the target SRS resource configuration, and terminating the adopting of the target antenna switching configuration;

wherein the target SRS resource configuration is one or more SRS resource sets corresponding to the target antenna switching configuration to which the terminal device is to switch, and the method further comprises:

receiving high-level signaling carrying first configuration information sent by the network device, wherein the first configuration information is SRS resource configurations corresponding to one or more antenna switching configurations supported by the terminal device, each of the SRS resource configurations comprises one or more SRS resource sets, and each of the one or more SRS resource sets comprises at least one SRS resource; and

based on the first configuration information, determining one or more SRS resource sets corresponding to each of the one or more antenna switching configurations on the current BWP;

or

wherein the target SRS resource configuration is at least part of SRS resources in one or more SRS resource sets corresponding to a reference antenna switching configuration of the terminal device on the current BWP, wherein the reference antenna switching configuration comprises an antenna switching configuration selected by the network device, or a highest antenna switching configuration corresponding to a highest capability supported by the terminal device.

8 . The method according to claim 7 , wherein in a case where the target SRS resource configuration is the at least part of SRS resources in the one or more SRS resource sets corresponding to the reference antenna switching configuration of the terminal device on the current BWP, the method further comprises:

receiving high-level signaling carrying second configuration information sent by the network device, wherein the second configuration information is an SRS resource configuration corresponding to the reference antenna switching configuration, the SRS resource configuration corresponding to the reference antenna switching configuration comprises one or more SRS resource sets, and each of the one or more SRS resource sets comprises at least one SRS resource; and

based on the second configuration information, determining the one or more SRS resource sets corresponding to the reference antenna switching configuration on the current BWP.

9 . The method according to claim 7 , wherein

the indication information is a resource identifier (ID) of the target SRS resource configuration; or

the indication information is a bitmap in which one or more bits corresponding to the target SRS resource configuration are enabled; or

the indication information is one or more codepoints corresponding to one or more SRS resource sets or an SRS resource combination in the target SRS resource configuration; wherein a corresponding relationship between the one or more SRS resource sets or the SRS resource combination and the one or more codepoints is configured and notified by the network device.

10 . A communication device, comprising:

a transceiver;

a memory; and

a processor, connected to the transceiver and the memory, configured to control wireless signal transmission and reception of the transceiver by executing computer executable instructions on the memory, and implement the method according to claim 7 .

11 . A non-transitory computer storage medium storing computer executable instructions; wherein after the computer executable instructions are executed by a processor, the method according to claim 7 is implemented.

12 . The method according to claim 7 , wherein the antenna switching configuration selected by the network device comprises an antenna switching configuration currently adopted by the terminal device.

13 . The method according to claim 7 , wherein the highest antenna switching configuration corresponding to the highest capability supported by the terminal device comprises an antenna switching configuration with both the largest number of reception antennas and the largest number of transmission antennas.

14 . A communication device, comprising:

a transceiver;

a memory; and

a processor, connected to the transceiver and the memory, configured to control wireless signal transmission and reception of the transceiver by executing computer executable instructions on the memory, and implement operations comprising:

according to a target antenna switching configuration to which a terminal device is to switch on a current bandwidth part (BWP), sending indication information for activating a corresponding target sounding reference signal (SRS) resource configuration to the terminal device; wherein the indication information is carried in first medium access control (MAC) layer signaling, and the first MAC layer signaling is configured to activate the target SRS resource configuration in one or more SRS resource configurations, so that the terminal device sends one or more semi-persistent SRS resource sets or one or more semi-persistent SRS resources by adopting the target SRS resource configuration; and

determining termination of adopting of the target antenna switching configuration by the terminal device, and sending deactivation MAC layer signaling corresponding to the first MAC layer signaling and carrying the indication information to the terminal device;

wherein the target SRS resource configuration is one or more SRS resource sets corresponding to the target antenna switching configuration to which the terminal device is to switch, and when executing the computer executable instructions, the processor is caused to:

for one or more antenna switching configurations supported by the terminal device on the current BWP, determine one or more SRS resource sets corresponding to each of the one or more antenna switching configurations; and

send high-level signaling carrying first configuration information to the terminal device, wherein the first configuration information is SRS resource configurations corresponding to the one or more antenna switching configurations, each of the SRS resource configurations comprises one or more SRS resource sets, and each of the one or more SRS resource sets comprises at least one SRS resource;

or

wherein the target SRS resource configuration is at least part of SRS resources in one or more SRS resource sets corresponding to a reference antenna switching configuration of the terminal device on the current BWP, wherein the reference antenna switching configuration comprises an antenna switching configuration selected by the communication device, or a highest antenna switching configuration corresponding to a highest capability supported by the terminal device.

Assignments (1)

Continuity (1)

References Cited (14)