QUALCOMM Incorporated
UPDATING CELL AND TIMING ADVANCE (TA) AND/OR TIMING ADVANCE GROUP IDENTIFICATION (TAG-ID) PER CELL IN L1/L2-BASED INTER-CELL MOBILITY

Abstract:

Aspects of the present disclosure provide apparatus, methods, processing systems, and computer readable mediums for updating timing advance information in L1 (physical layer) and L2 (medium access control (MAC) layer) based inter-cell mobility. An example method generally includes receiving, via physical (PHY) layer or medium access control (MAC) layer signaling, a joint update to at least one serving cell to serve the UE and a timing advance (TA); and applying the updated TA while communicating in the at least one serving cell.