QUALCOMM Incorporated
CONFIGURATION OF PHYSICAL UPLINK CONTROL CHANNEL (PUCCH)-BEAM FAILURE RECOVERY (BFR) FOR TRANSMISSION RECEPTION POINT (TRP) SPECIFIC BFR

Abstract:

Certain aspects provide enhancements to enable per transmission reception point (per-TRP) based beam failure recovery (BFR), and more particularly, techniques for configuring physical uplink control channel (PUCCH) BFR for TRP specific BFR. A method that may be performed by a user equipment (UE) includes communicating with at least two TRPs using beams associated with at least two beam groups, each of the beams groups associated with one of the TRPs, detecting a beam failure in a beam group of the at least two beam groups, transmitting a beam group specific BFR scheduling request (SR), in accordance with one or more rules, for an uplink (UL) grant to transmit a beam failure recovery request (BFRQ) specific to the beam group in which the beam failure was detected, receiving the UL grant in response to the SR, and transmitting the BFRQ specific to the beam group based on the UL grant.