PROCEDURE OF CSI-RS CONFIGURATION UPDATE, TCI SWITCHING, AND SPATIAL RELATION SWITCH

摘要

Apparatus and methods are provided for TCI switching related to CSI-RS measurement and reporting, spatial relation switch for SRS, PUSCH, and PUCCH. In one novel aspect, the PDSCH and PDCCH are received according to the QCLed aperiodic CSI-RS. In one embodiment, when the AP CSI-RS can configured as the reference in the TCI of PDSCH, UE would apply the updated TCI for the PDSCH, after the corresponding aperiodic report has been received at the network. In another novel aspect, spatial relation switch is based on the valid measurement report. In one embodiment, the spatial relation switch delay of aperiodic SRS can be performed only when UE has sent the corresponding measurement report to the network.