Electronic device, communication method and storage medium
The present disclosure relates to electronic device, communication method and storage medium in a wireless communication system. There is provided an electronic device on side of control device, comprising a processing circuitry configured to: select one or more transmitting beams to be used for downlink transmission with a user equipment based on beam information reported by the user equipment; and control to indicate the one or more transmitting beams to the user equipment, wherein, the processing circuitry is configured to perform the selecting of transmitting beams according to a beam reporting mode of the user equipment, and to select a plurality of transmitting beams in case where the user equipment reports the beam information in a group-based beam reporting mode.
1. An electronic device for a control device, comprising circuitry configured to:
receive radio resource control (RRC) signaling from a base station, the RRC signaling including:
a groupBasedBeamReporting parameter that indicates whether or not group based beam reporting is enabled, and
resource configurations of a channel state information reference signal (CSI- RS) or a Synchronization Signal/Physical Broadcast Channel (SSB),
measure the CSI-RS or the SSB on a plurality of beams based on the RRC signaling, and
generate a CSI report for the base station, the CSI report comprising a plurality of CSI- RS indicator (CRIs) or SSB resource indicators (SSBRIs) for the base station to select for a downlink transmission to the electronic device,
wherein the circuitry is configured to place the plurality of CRIs or SSBRIs in the CSI report in a group based on the groupBasedBeamReporting parameter indicating that the group based beam reporting is enabled,
wherein the group comprises multiple CRIs or SSBRIs consecutively arranged in the CSI report following a group mark, and
wherein the circuitry is further configured to receive, from the base station, Downlink Control Information (DCI) that indicates a plurality of transmission configuration indication (TCD) state IDs that are encoded into a single TCI field, wherein the plurality of TCI state IDs that are encoded into the single TCI field indicates a set of beams selected by the base station.
2. The electronic device according to claim 1 , wherein the group comprises two CRIs or two SSBRIs.
3. The electronic device according to claim 1 , wherein the multiple CRIs or SSBRIs in the group indicate multiple beams that can be simultaneously received by the user equipment.
4. The electronic device according to claim 1 , wherein the multiple CRIs or SSBRIs in the group indicate multiple beams that can be simultaneously selected by the base station for downlink transmission to the user equipment.
5. The electronic device according to claim 1 , wherein the set of beams selected by the base station are within the group as reported in the CSI report.
6. The electronic device of claim 1 , wherein the plurality of TCI state IDs that are encoded into the single TCI field indicates the set of beams selected by the base station by way of indices.
7. The electronic device of claim 1 , wherein the electronic device is implemented as the user equipment, and further comprises:
a plurality of antenna panels configured to simultaneously receive from the base station the set of beams selected by the base station.
8. An electronic device for a base station, comprising circuitry configured to:
transmit radio resource control (RRC) signaling to a user equipment, the RRC signaling including a groupBasedBeamReporting parameter set to enable group based beam reporting and resource configurations of a channel state information reference signal (CSI-RS) or a Synchronization Signal/Physical Broadcast Channel (SSB),
receive a CSI report from the user equipment, the CSI report comprising a plurality of CSI-RS indicator (CRIs) or SSB resource indicators (SSBRIs) indicating a plurality of beams measured based on the RRC signaling; and
select a set of beams based on the CSI report for downlink transmission to the user equipment,
wherein the plurality of CRIs or SSBRIs are placed in the CSI report in a group according to the groupBasedBeamReporting parameter being set to enabled, and the group comprises multiple CRIs or SSBRIs consecutively arranged in the CSI report following a group mark, and
wherein the circuitry is further configured to transmit, to the user equipment, Downlink Control Information (DCI) that indicates a plurality of transmission configuration indication (TCD) state IDs that are encoded into a single TCI field, wherein the plurality of TCI state IDs that are encoded into the single TCI field indicates a set of beams selected by the base station.
9. The electronic device according to claim 8 , wherein the group comprises two CRIs or two SSBRIs.
10. The electronic device according to claim 8 , wherein the multiple CRIs or SSBRIs in the group indicate multiple beams that can be simultaneously received by the user equipment.
11. The electronic device according to claim 8 , wherein the multiple CRIs or SSBRIs in the group indicate multiple beams that can be simultaneously selected by the base station for downlink transmission to the user equipment.
12. The electronic device according to claim 8 , wherein the set of beams selected by the base station are within the group as reported in the CSI report.
13. The electronic device of claim 8 , wherein the plurality of TCI state IDs that are encoded into the single TCI field indicates the plurality of beams selected by the base station by way of indices.
14. The electronic device of claim 8 , wherein the electronic device is implemented as the base station, and further comprises:
a plurality of antenna panels configured to simultaneously transmit the set of beams selected by the base station to the user equipment.
15. A communication method for a user equipment, the method comprising
receiving radio resource control (RRC) signaling from a base station, the RRC signaling including a groupBasedBeamReporting parameter set to enable group based beam reporting and resource configurations of a channel state information reference signal (CSI-RS) or a Synchronization Signal/Physical Broadcast Channel (SSB),
measuring the CSI-RS or the SSB on a plurality of beams based on the RRC signaling, and
generating a CSI report for the base station, the CSI report comprising a plurality of CSI-RS indicator (CRIs) or SSB resource indicators (SSBRIs) for the base station to select for downlink transmission,
wherein the method further comprises placing the plurality of CRIs or SSBRIs in the CSI report in a group according to the groupBasedBeamReporting parameter being set to enabled,
wherein the group comprises multiple CRIs or SSBRIs consecutively arranged in the CSI report following a group mark, and
wherein the method further includes receiving, from the base station, Downlink Control Information (DCI) that indicates a plurality of transmission configuration indication (TCI) state IDs that are encoded into a single TCI field, wherein the plurality of TCI state IDs that are encoded into the single TCI field indicates a set of beams selected by the base station.
16. A communication method for a base station, the method comprising:
transmitting radio resource control (RRC) signaling to a user equipment, the RRC signaling including a groupBasedBeamReporting parameter set to enable group based beam reporting and resource configurations of a channel state information reference signal (CSI-RS) or a Synchronization Signal/Physical Broadcast Channel (SSB),
receiving a CSI report from the user equipment, the CSI report comprising a plurality of CSI-RS indicator (CRIs) or SSB resource indicators (SSBRIs) indicating a plurality of beams measured based on the RRC signaling; and
selecting a set of beams based on the CSI report for downlink transmission to the user equipment,
wherein the plurality of CRIs or SSBRIs are placed in the CSI report in a group according to the groupBasedBeamReporting parameter being set to enabled,
wherein the group comprises multiple CRIs or SSBRIs consecutively arranged in the CSI report following a group mark, and
wherein the method further includes transmitting, to the user equipment, Downlink Control Information (DCI) that indicates a plurality of transmission configuration indication (TCI) state IDs that are encoded into a single TCI field, wherein the plurality of TCI state IDs that are encoded into the single TCI field indicates the set of beams selected by the base station.