QUALCOMM Incorporated
MULTI-LAYER CONTROL IN NEW RADIO SIDELINK

Abstract:

Methods, systems, and devices for wireless communications are described. Wireless communications systems may support both access links and sidelinks (e.g., D2D communication links) for communications between one or more communication devices. Wireless devices may communicate sidelink control information in two stages, where first stage sidelink control information (SCI-1) may be transmitted via a physical sidelink channel and second stage sidelink control information (SCI-2) may be transmitted via a physical shared channel. In cases where sidelink communications use several (e.g., three or more) layers, the described layer mapping techniques may provide for robust transmission of control information, higher data rates, improved spectral efficiency, etc. For example, SCI-1 and/or SCI-2 may be mapped to physical channel layers by repeating the same modulation symbols across all layers, across groupings or sets of layers, across layers associated with each codeword, etc.