QUALCOMM Incorporated
TWO-STEP RANDOM ACCESS PROCEDURE IN WIRELESS COMMUNICATION

Abstract:

A random access channel (RACH) procedure allows a user equipment (UE) to achieve synchronization with a network and obtain network resources and services from a scheduling entity. This disclosure provides various options for implementing a two-step RACH procedure that can support various UE behaviors in relation to using or not using a time symbol gap between a physical random access channel (PRACH) resource and a physical uplink control channel (PUCCH) resource.