QUALCOMM Incorporated
Wireless communication including random access

Abstract:

A method, a computer-readable medium, and an apparatus are provided for wireless communication that enables a UE to generate a PRACH message based on an SSB/CSI-RS for a first cell or first band and to transmit the PRACH message via another cell or another band. Aspects enable a base station to select an SSB index for transmitting downlink communication to the UE on the first cell/first band. A UE receives an SSB/CSI-RS from a base station through a first cell and transmits a random access message for the SSB/CSI-RS to the base station through a second cell. In another aspect the UE receives the SSB/CSI-RS from a base station through a first frequency range and transmits a random access message based on the SSB/CSI-RS to the base station through a second frequency range.