Unsynchronized multi-transmission reception point scheduling operation
The present application relates to devices and components including apparatus, systems, and methods to provide unsynchronized multi-transmission reception point operation in wireless communication systems.
1. An apparatus, comprising:
processing circuitry to:
determine one or more cells for multi-transmission reception point (TRP) operation for a user equipment (UE); and
identify a configuration of a transmission configuration indicator (TCI) state, the configuration to include a timing advance group (TAG) index to indicate a TAG of a serving cell of the one or more cells where the TCI state is to be applied; and
interface circuitry coupled with the processing circuitry, the interface circuitry to communicatively couple the processing circuitry with a component of a device.
2. The apparatus of claim 1 , wherein the processing circuitry is further to identify an indication of a candidate cell pool that includes channel measurement resources (CMRs) corresponding to different cells within a CMR set, wherein the CMRs include reference signals for neighbor cells, and wherein the one or more cells are determined from the candidate cell pool.
3. The apparatus of claim 1 , wherein the processing circuitry is further to identify an indication of a candidate cell pool that includes channel measurement resources (CMRs) corresponding to different cells in different CMR sets, wherein the CMRs include reference signals for neighbor cells, and wherein the one or more cells are determined from the candidate cell pool.
4. The apparatus of claim 1 , wherein the processing circuitry is further to generate a report that indicates the one or more cells and a multi-TRP operation mode for the one or more cells for transmission, and wherein the report includes a synchronization signal/physical broadcast channel (SSB) resource indicator (SSBRI)/channel state information reference signal (CSI-RS) resource indicator (CRI) corresponding to the serving cell, a layer 1 reference signal received power (L1-RSRP)/layer 1 signal to noise and interference ratio (L1-SINR) corresponding to the serving cell, a SSBRI/CRI corresponding to a neighbor cell, and a SSBRI/CRI corresponding to the neighbor cell.
5. The apparatus of claim 1 , wherein the TCI state is to enable inter-cell multi-TRP operation for the UE.
6. The apparatus of claim 1 , wherein the processing circuitry is further to identify an indication of a candidate cell pool that includes physical cell identifiers (IDs), synchronization signal/physical broadcast channel (SSB) locations, and transmission powers for candidate cells within the candidate cell pool, wherein the one or more cells are determined from the candidate cell pool.
7. The apparatus of claim 1 , wherein the processing circuitry is further to:
identify an indication of a candidate cell pool, wherein the one or more cells are determined from the candidate cell pool; and
determine whether multi-TRPs can be supported based on the serving cell and a candidate cell of the candidate cell pool.
8. One or more non-transitory computer-readable media having instructions that, when executed, cause processing circuitry to:
determine a configuration of a transmission configuration indicator (TCI) state for multi-transmission reception point (TRP) operation for a user equipment (UE), the configuration to include a timing advance group (TAG) index to indicate a TAG of a serving cells of one or more cells where the TCI state is to be applied; and
generate an indication of the configuration for transmission.
9. The one or more non-transitory computer-readable media of claim 8 , wherein the instructions, when executed, further cause the processing circuitry to:
configure neighbor cell reference signals in channel measurement resource (CMR) and interference measurement resource (IMR) for layer 1 reference signal received power (L1-RSRP)/layer 1 signal to noise and interference ratio (L1-SINR) report.
10. The one or more non-transitory computer-readable media of claim 8 , wherein the instructions, when executed, further cause the processing circuitry to:
provide a candidate cell pool for multi-TRP operation to the UE; and
enable a multi-TRP operation mode with the one or more cells, wherein to enable the multi-TRP operation mode includes to indicate a transmission configuration indicator (TCI) for cells within the candidate cell pool to the UE.
11. The one or more non-transitory computer-readable media of claim 8 , wherein the instructions, when executed, further cause the processing circuitry to:
provide a candidate cell pool for multi-TRP operation to the UE; and
provide physical cell identifiers (IDs), synchronization signal/physical broadcast channel (SSB) locations, and transmission powers for candidate cells within the candidate cell pool to the UE.
12. A method comprising:
determining one or more cells for multi-transmission reception point (TRP) operation for a user equipment (UE); and
identifying a configuration of a transmission configuration indicator (TCI) state, the configuration to include a timing advance group (TAG) index to indicate a TAG of a serving cell of the one or more cells where the TCI state is to be applied.
13. The method of claim 12 , further comprising determining a multi-TRP operation mode for the one or more cells, wherein the multi-TRP operation mode includes an unsynchronized multi-TRP operation mode, a synchronized multi-TRP operation mode, or a multi-TRP unsupported operation mode.
14. The method of claim 12 , further comprising generating a report that indicates the one or more cells and a multi-TRP operation mode for the one or more cells, wherein the report is to be transmitted via a medium access control (MAC) control element (CE).
15. The method of claim 12 , further comprising determining whether multi-TRP operation is supported for the one or more cells based on a serving cell and the one or more cells, indication of synchronized/unsynchronized mode for the one or more cells, or indication of states for the one or more cells.
16. The method of claim 15 , wherein the states include a synchronized multi-TRP state, an unsynchronized multi-TRP state, or a not recommended for multi-TRP operation state.
17. The method of claim 12 , further comprising determining the one or more cells from a candidate cell pool, wherein the candidate cell pool includes channel measurement resources (CMRs) corresponding to different cells within a CMR set, wherein the CMRs include reference signals for neighbor cells.
18. The method of claim 12 , further comprising determining the one or more cells from a candidate cell pool, wherein the candidate cell pool includes channel measurement resources (CMRs) corresponding to different cells in different CMR sets, wherein the CMRs include reference signals for neighbor cells.
19. The method of claim 12 , further comprising generating a report that indicates the one or more cells and a multi-TRP operation mode, wherein the report includes a synchronization signal/physical broadcast channel (SSB) resource indicator (SSBRI)/channel state information reference signal (CSI-RS) resource indicator (CRI) corresponding to a serving cell, a layer 1 reference signal received power (L1-RSRP)/layer 1 signal to noise and interference ratio (L1-SINR) corresponding to the serving cell, a SSBRI/CRI corresponding to a neighbor cell, and a SSBRI/CRI corresponding to the neighbor cell.
20. The method of claim 12 , further comprising:
identifying an indication of a TCI corresponding to the one or more cells to enable inter-cell multi-TRP operation for the UE.