QUALCOMM Incorporated
MULTIPLE USER (MU) SUPPORT FOR REFERENCE SIGNAL (RS) AND DATA MULTIPLEXING ON SHARED UPLINK (UL) RESOURCES(S)

Abstract:

Certain aspects of the present disclosure provide techniques for applying a mechanism to signals, from different user equipments (UEs), multiplexed for UL transmission, such that the mechanism differentiates one UE's waveform from another UE's, even if the waveforms are on the same time resources.. A method that may be performed by a UE includes determining a mechanism to allow the UE to share uplink (UL) resources with at least one other UE for UL transmission, applying the mechanism to at least one of RS symbols or information symbols to be multiplexed using orthogonal frequency division multiplexing (OFDM) before performing a discrete Fourier transform (DFT) for the UL transmission, and outputting a waveform for the UL transmission after performing the DFT and an inverse fast Fourier transform (IFFT).