Uplink beam training method, terminal device, and network side device
An uplink beam training method includes: determining a target antenna set in a plurality of supported antenna sets based on first network signaling; determining an uplink beam training mode of the target antenna set; and performing beam training based on the uplink beam training mode.
1. An uplink beam training method, comprising:
determining, by a terminal device, a target antenna set in a plurality of supported antenna sets based on first network signaling;
determining, by the terminal device, an uplink beam training mode of the target antenna set; and
performing, by the terminal device, beam training based on the uplink beam training mode; wherein
the determining, by the terminal device, the target antenna set in the plurality of supported antenna sets based on the first network signaling comprises:
triggering, by the terminal device, a target reference signal (RS) resource set based on the first network signaling; and
determining, by the terminal device, based on an association relationship between an RS resource set and an antenna set, the target antenna set corresponding to the target RS resource set; wherein
the target RS resource set comprises a target sounding reference signal (SRS) resource set; and
the determining, by the terminal device, the uplink beam training mode of the target antenna set comprises:
determining, by the terminal device, whether first spatial relation information is configured for the target SRS resource set; and
determining, by the terminal device, the uplink beam training mode based on a first result; wherein
in a case that the first result is that the first spatial relation information is configured for the target SRS resource set, the determining, by the terminal device, the uplink beam training mode comprises:
determining that information on all SRS resources in the target SRS resource set is transmitted by the terminal device on a target uplink transmit beam corresponding to a source RS, wherein the source RS corresponds to the first spatial relation information; or
determining that through beam sweeping based on a first spatial range and the first spatial relation information, information on all SRS resources comprised in the target SRS resource set is transmitted by the terminal device; or
determining, by the terminal device, the uplink beam training mode based on second network signaling; or
in a case that the first result is that the first spatial relation information is not configured for the target SRS resource set, the determining, by the terminal device, the uplink beam training mode comprises:
determining that through beam sweeping based on a third spatial range, information on all SRS resources comprised in the target SRS resource set is transmitted by the terminal device.
2. The method according to claim 1 , wherein the determining, by the terminal device, based on an association relationship between an RS resource set and an antenna set, the target antenna set corresponding to the target RS resource set comprises:
obtaining, by the terminal device, first configuration information, wherein the first configuration information is information configured by a network device for the target RS resource set based on capability parameter information of the terminal device; and
determining, by the terminal device, the target antenna set based on the association relationship comprised in the first configuration information.
3. The method according to claim 2 , wherein the capability parameter information of the terminal device comprises:
information about a maximum quantity of antenna sets supported by the terminal device and information about a maximum quantity of supported beams in each antenna set.
4. A non-transitory computer-readable storage medium, wherein the non-transitory computer-readable storage medium stores a computer program, and when a processor executes the computer program, steps of the method according to claim 3 are implemented.
5. A non-transitory computer-readable storage medium, wherein the non-transitory computer-readable storage medium stores a computer program, and when a processor executes the computer program, steps of the method according to claim 2 are implemented.
6. The method according to claim 1 , wherein the second network signaling comprises a preset spatial range parameter; and
the determining, by the terminal device, the uplink beam training mode based on second network signaling comprises:
in a case that the preset spatial range parameter is not set to a value or is set to 0, determining, by the terminal device, that the uplink beam training mode comprises: transmitting, by the terminal device, information on all SRS resources in the target SRS resource set on a target uplink transmit beam corresponding to a source RS, wherein the source RS corresponds to the first spatial relation information; or
in a case that the preset spatial range parameter is not set to 0, determining, by the terminal device, the uplink beam training mode comprises: transmitting, by the terminal device, through beam sweeping based on the first spatial relation information and a spatial range corresponding to the preset spatial range parameter, information on all SRS resources comprised in the target SRS resource set; or
the second network signaling comprises preset indication information indicating whether to perform beam sweeping; and
the determining, by the terminal device, the uplink beam training mode based on second network signaling comprises:
in a case that the preset indication information does not instruct to perform beam sweeping, determining, by the terminal device, the uplink beam training mode comprises: transmitting, by the terminal device, information on all SRS resources in the target SRS resource set on a target uplink transmit beam corresponding to a source RS, wherein the source RS corresponds to the first spatial relation information; or
in a case that the preset indication information instructs to perform beam sweeping, determining, by the terminal device, the uplink beam training mode comprises: transmitting, by the terminal device, through beam sweeping based on a second spatial range and the first spatial relation information, information on all SRS resources comprised in the target SRS resource set.
7. A non-transitory computer-readable storage medium, wherein the non-transitory computer-readable storage medium stores a computer program, and when a processor executes the computer program, steps of the method according to claim 6 are implemented.
8. A non-transitory computer-readable storage medium, wherein the non-transitory computer-readable storage medium stores a computer program, and when a processor executes the computer program, steps of the method according to claim 1 are implemented.
9. A terminal device, comprising a memory, a processor, and a program that is stored in the memory and executable on the processor, wherein when the processor executes the program, the terminal device performs:
determining a target antenna set in a plurality of supported antenna sets based on first network signaling;
determining an uplink beam training mode of the target antenna set; and
performing beam training based on the uplink beam training mode; wherein
when the processor executes the program, the terminal device further performs:
triggering a target reference signal (RS) resource set based on the first network signaling; and
determining based on an association relationship between an RS resource set and an antenna set, the target antenna set corresponding to the target RS resource set; wherein
the target RS resource set comprises a target sounding reference signal (SRS) resource set; wherein
when the processor executes the program, the terminal device further performs:
determining whether first spatial relation information is configured for the target SRS resource set; and
determining the uplink beam training mode based on a first result; wherein
in a case that the first result is that the first spatial relation information is configured for the target SRS resource set, when the processor executes the program, the terminal device further performs:
determining that information on all SRS resources in the target SRS resource set is transmitted by the terminal device on a target uplink transmit beam corresponding to a source RS, wherein the source RS corresponds to the first spatial relation information; or
determining that through beam sweeping based on a first spatial range and the first spatial relation information, information on all SRS resources comprised in the target SRS resource set is transmitted by the terminal device; or
determining the uplink beam training mode based on second network signaling; or
in a case that the first result is that the first spatial relation information is not configured for the target SRS resource set, when the processor executes the program, the terminal further device performs:
determining that through beam sweeping based on a third spatial range, information on all SRS resources comprised in the target SRS resource set is transmitted by the terminal device.
10. The terminal device according to claim 9 , wherein when the processor executes the program, the terminal device further performs:
obtaining first configuration information, wherein the first configuration information is information configured by a network device for the target RS resource set based on capability parameter information of the terminal device; and
determining the target antenna set based on the association relationship comprised in the first configuration information.
11. The terminal device according to claim 10 , wherein the capability parameter information of the terminal device comprises:
information about a maximum quantity of antenna sets supported by the terminal device and information about a maximum quantity of supported beams in each antenna set.
12. The terminal device according to claim 9 , wherein the second network signaling comprises a preset spatial range parameter; and
when the processor executes the program, the terminal device further performs:
in a case that the preset spatial range parameter is not set to a value or is set to 0, determining, by the terminal device, that the uplink beam training mode comprises: transmitting, by the terminal device, information on all SRS resources in the target SRS resource set on a target uplink transmit beam corresponding to a source RS, wherein the source RS corresponds to the first spatial relation information; or
in a case that the preset spatial range parameter is not set to 0, determining, by the terminal device, the uplink beam training mode comprises: transmitting, by the terminal device, through beam sweeping based on the first spatial relation information and a spatial range corresponding to the preset spatial range parameter, information on all SRS resources comprised in the target SRS resource set; or
the second network signaling comprises preset indication information indicating whether to perform beam sweeping; and
when the processor executes the program, the terminal device performs:
in a case that the preset indication information does not instruct to perform beam sweeping, determining, by the terminal device, the uplink beam training mode comprises: transmitting, by the terminal device, information on all SRS resources in the target SRS resource set on a target uplink transmit beam corresponding to a source RS, wherein the source RS corresponds to the first spatial relation information; or
in a case that the preset indication information instructs to perform beam sweeping, determining, by the terminal device, the uplink beam training mode comprises: transmitting, by the terminal device, through beam sweeping based on a second spatial range and the first spatial relation information, information on all SRS resources comprised in the target SRS resource set.
13. A network side device, comprising: a memory, a processor, and a program that is stored in the memory and executable on the processor, wherein when the processor executes the program, the network side device performs:
generating first network signaling; and
transmitting the first network signaling, wherein the first network signaling is used to indicate a target antenna set in a plurality of antenna sets supported by a terminal device; wherein
the first network signaling is used to trigger a target reference signal (RS) resource set, and the target RS resource set is used to indicate the target antenna set; wherein
the target RS resource set comprises a target sounding reference signal (SRS) resource set; and
determining a first result, wherein the first result comprises that first spatial relation information is configured for the target SRS resource set or first spatial relation information is not configured for the target SRS resource set, and the first result is used by the terminal device to determine an uplink beam training mode of the target antenna set; wherein
in a case that the first result is that the first spatial relation information is configured for the target SRS resource set, when the processor executes the program, the network side device further performs:
generating second network signaling; and
transmitting the second network signaling, wherein the second network signaling is used to indicate the uplink beam training mode.
14. The network side device according to claim 13 , wherein when the processor executes the program, the network side device further performs:
determining an association relationship between an RS resource set and an antenna set based on capability parameter information of the terminal device;
placing the association relationship in first configuration information corresponding to the target RS resource set; and
transmitting the first configuration information to enable the terminal device to determine the target antenna set based on the target RS resource set and the association relationship.
15. The network side device according to claim 13 , wherein the second network signaling comprises one of following:
a preset spatial range parameter indicating the uplink beam training mode based on a setting situation of the preset spatial range parameter; and
preset indication information, wherein the preset indication information is used to indicate whether to perform beam sweeping and is used by the terminal device to determine the uplink beam training mode.