Wireless communication method and device
View Patent ↗Embodiments of the present application provide a wireless communication method and device. A transmitter device can determine or indicate spatial information of channel listening, thereby obtaining an LBT direction and optimizing the communication of an NR-U system on a shared spectrum. The wireless communication method comprises: a transmitter device determines spatial information of channel listening according to the spatial information corresponding to first information, wherein the first information comprises a channel and/or a signal.
1. A method for wireless communication, comprising:
determining, by a transmitter device, spatial information of channel listening according to spatial information corresponding to first information to be sent, wherein the first information comprises a channel and/or a signal;
wherein the spatial information of channel listening comprises a direction of uplink Listen Before Talk (LBT) and a direction of downlink LBT, wherein
a type of spatial information used for determining the direction of uplink LBT is different from a type of spatial information used for determining the direction of downlink LBT;
wherein the spatial information corresponding to the first information to be sent comprises at least one of the followings:
Synchronization Signal Block (SSB) index information, a Transmission Configuration Indicator (TCI) state identification, spatial information of an uplink Sounding Reference Signal (SRS) spatial information of a Physical Uplink Control Channel (PUCCH), or spatial information of a Physical Uplink Shared Channel (PUSCH); wherein the spatial information of the uplink SRS corresponds to an uplink SRS resource indicator, the spatial information of the PUSCH is indicated by at least one of precoding information, or information of the number of layers.
2. The method of claim 1 , wherein the TCI state identification is an identification of an activated TCI state.
3. The method of claim 1 , wherein a TCI state identified by the TCI state identification is configured with QCL information.
4. The method of claim 1 , wherein the spatial information of the PUSCH is further indicated by an SRS resource indicator.
5. The method of claim 1 , wherein determining, by the transmitter device, the spatial information of channel listening according to the spatial information corresponding to the first information, comprises:
determining, by the transmitter device, the spatial information of channel listening according to spatial information of the first information.
6. A method for wireless communication, comprising:
receiving, by a receiver device, indication information sent by a transmitter device, wherein the indication information is used for indicating spatial information of channel listening through at least one type of spatial information from a plurality of types of spatial information, wherein the at least one type of spatial information is determined from the plurality of types of spatial information based on a type of first information, wherein the first information is information to be sent by the transmitter device, and the first information comprises a channel and/or a signal; and
determining, by the receiver device, the spatial information of channel listening according to the indication information;
wherein the spatial information of channel listening comprises a direction of uplink Listen Before Talk (LBT) and a direction of downlink LBT, wherein
a type of spatial information used for determining the direction of uplink LBT is different from a type of spatial information used for determining the direction of downlink LBT;
wherein the plurality of types of spatial information comprise:
a Transmission Configuration Indicator (TCI) state identification, and spatial information of an uplink Sounding Reference Signal (SRS).
7. The method of claim 6 , wherein the TCI state identification is an identification of an activated TCI state.
8. The method of claim 6 , wherein a TCI state configuration identified by the TCI state identification comprises QCL information.
9. The method of claim 6 , wherein,
the spatial information of the uplink SRS corresponds to an uplink SRS resource indicator.
10. The method of claim 6 , wherein the indication information is carried in Downlink Control Information (DCI) used for uplink grant.
11. A wireless communication device, comprising:
a processor, configured to determine spatial information of channel listening according to spatial information corresponding to first information to be sent, wherein the first information comprises a channel and/or a signal;
wherein the spatial information of channel listening comprises a direction of uplink Listen Before Talk (LBT) and a direction of downlink LBT, wherein
a type of spatial information used for determining the direction of uplink LBT is different from a type of spatial information used for determining the direction of downlink LBT;
wherein the spatial information corresponding to the first information to be sent comprises at least one of the followings:
Synchronization Signal Block (SSB) index information, a Transmission Configuration Indicator (TCI) state identification, spatial information of an uplink Sounding Reference Signal (SRS) spatial information of a Physical Uplink Control Channel (PUCCH), or spatial information of a Physical Uplink Shared Channel (PUSCH); wherein the spatial information of the uplink SRS corresponds to an uplink SRS resource indicator, the spatial information of the PUSCH is indicated by at least one of precoding information, or information of the number of layers.
12. A wireless communication device, comprising:
a transceiver, configured to receive indication information sent by a transmitter device, wherein the indication information is used for indicating spatial information of channel listening through at least one type of spatial information from a plurality of types of spatial information, wherein the at least one type of spatial information is determined from the plurality of types of spatial information based on a type of first information, wherein the first information is information to be sent by the transmitter device, and the first information comprises a channel and/or a signal; and
a processor, configured to determine the spatial information of channel listening according to the indication information;
wherein the spatial information of channel listening comprises a direction of uplink Listen Before Talk (LBT) and a direction of downlink LBT, wherein
a type of spatial information used for determining the direction of uplink LBT is different from a type of spatial information used for determining the direction of downlink LBT;
wherein the plurality of types of spatial information comprise:
a Transmission Configuration Indicator (TCI) state identification, and spatial information of an uplink Sounding Reference Signal (SRS).