QUALCOMM Incorporated
PHYSICAL UPLINK CONTROL CHANNEL WITH ADAPTIVE DEMODULATION REFERENCE SIGNAL DENSITY

Abstract:

A base station transmits to a user equipment (UE), an indication of an adjustment to at least one of a density or a location of one or more demodulation reference signals (DMRS) for at least one physical uplink control channel (PUCCH) format. The base station monitors for PUCCH based on the adjustment to the density or the location of the DMRS indicated to the UE. A UE receives, from the base station an indication of an adjustment to at least one of a density or a location of one or more DMRS for at least one PUCCH forma and transmits, to the base station, a PUCCH based on the indication of the adjustment to at least one of the density or the location of the one or more DMRS.