Information transmission method and device
Embodiments of the present invention relate to the communications field, and disclose an information transmission method and device to implement beamforming on an SRS. A specific solution is as follows: A base station configures at least one first resource for a UE, where the first resource is used by the UE to transmit a target channel and/or signal; and the base station transmits first indication information to the UE, where the first indication information is used to indicate a correspondence between the first resource and a beam, or the first indication information is used to indicate a correspondence between the first resource and a second resource. The embodiments of the present invention are used in a beamforming process.
1. An information transmission method, comprising:
configuring, by a base station, a first resource for a user equipment (UE), the first resource being configured to be used by the UE to transmit a first signal comprising a sounding reference signal (SRS); and
transmitting, by the base station, first indication information to the UE;
the first indication information indicating a correspondence between the first resource and a second resource, the second resource being configured to be used by the UE to transmit a second signal to the base station before the transmission of the first signal, the correspondence being used by the UE to determine a first beam for transmitting the first signal, and the first beam for transmitting the first signal being the same as a second beam for transmitting the second signal.
2. The method according to claim 1 , wherein the first resource is comprised in a resource group.
3. The method according to claim 1 , wherein the first resource comprises at least one of a time domain resource, a frequency domain resource, a code domain resource, or an antenna port.
4. The method according to claim 2 , wherein the first indication information comprises a correspondence between each resource in the resource group and the second resource.
5. The method according to claim 4 , wherein the first indication information comprises an identity of each resource in the resource group and an identity of the second resource.
6. An information transmission method, comprising:
obtaining, by a user equipment (UE), a first resource configured by a base station for the UE, the first resource being configured to be used by the UE to transmit a first signal comprising a sounding reference signal (SRS); and
receiving, by the UE, first indication information transmitted by the base station;
the first indication information indicating a correspondence between the first resource and a second resource, the second resource being configured to be used by the UE to transmit a second signal to the base station before the transmission of the first signal, the correspondence being used by the UE to determine a first beam for transmitting the first signal, and the first beam for transmitting the first signal being the same as a second beam for transmitting the second signal.
7. The method according to claim 6 , wherein the first resource is comprised in a resource group.
8. The method according to claim 6 , wherein the first resource comprises at least one of a time domain resource, a frequency domain resource, a code domain resource, or an antenna port.
9. The method according to claim 7 , wherein the first indication information comprises a correspondence between each resource in the resource group and the second resource.
10. The method according to claim 9 , wherein the first indication information comprises an identity of each resource in the resource group and an identity of the second resource.
11. A base station, comprising:
a processor;
a memory coupled to the processor, the memory comprising instructions that, when executed by the processor, cause the base station to:
configure a first resource for a user equipment (UE), the first resource being configured to be used by the UE to transmit a first signal comprising a sounding reference signal (SRS); and
transmit first indication information to the UE;
the first indication information indicating a correspondence between the first resource and a second resource, the second resource being configured to be used by the UE to transmit a second signal to the base station before the transmission of the first signal, the correspondence being used by the UE to determine a first beam for transmitting the first signal, and the first beam for transmitting the first signal being the same as a second beam for transmitting the second signal.
12. The method according to claim 11 , wherein the first resource is comprised in a resource group.
13. The method according to claim 11 , wherein the first resource comprises at least one of a time domain resource, a frequency domain resource, a code domain resource, or an antenna port.
14. The method according to claim 12 , wherein the first indication information comprises a correspondence between each resource in the resource group and the second resource.
15. The method according to claim 14 , wherein the first indication information comprises an identity of each resource in the resource group and an identity of the second resource.
16. A user equipment (UE), comprising:
a processor;
a memory coupled to the processor, the memory comprising instructions that, when executed by the processor, cause the UE to:
obtain a first resource configured by a base station for the UE, the first resource being configured to be used by the UE to transmit a first signal comprising a sounding reference signal (SRS); and
receive first indication information transmitted by the base station;
the first indication information indicating a correspondence between the first resource and a second resource, the second resource being configured to be used by the UE to transmit a second signal to the base station before the transmission of the first signal, the correspondence being used by the UE to determine a first beam for transmitting the first signal, and the first beam for transmitting the first signal being the same as a second beam for transmitting the second signal.
17. The method according to claim 16 , wherein the first resource is comprised in a resource group.
18. The method according to claim 16 , wherein the first resource comprises at least one of a time domain resource, a frequency domain resource, a code domain resource, or an antenna port.
19. The method according to claim 17 , wherein the first indication information comprises a correspondence between each resource in the resource group and the second resource.
20. The method according to claim 19 , wherein the first indication information comprises an identity of each resource in the resource group and an identity of the second resource.