NON-CONTENTION-BASED TWO-STEP RANDOM ACCESS METHOD AND APPARATUS, TERMINAL, AND STORAGE MEDIUM

摘要

The present application relates to the technical field of mobile communications, and provides a non-contention-based two-step random access method and apparatus, a terminal, and a storage medium. The method comprises: UE sends a message A; a base station receives the message A; the base station determines whether a payload transmitted in a PUSCH for the message A is successfully received; if the base station does not successfully receive the payload, the base station sends a message B for retransmitting the payload; the terminal listens to the message B in a listening window for the message B; the terminal retransmits the payload; if the base station successfully receives the payload, the base station sends a message B used for indicating permission to access the base station; the terminal receives the message B. By sending a message B for payload retransmission to UE and retransmitting, by the UE, the payload to the base station after receiving the message B, the technical solution provided by the present application implements payload retransmission scheduling to complete a non-contention-based two-step random access process, and improves the access success rate of the non-contention-based two-step random access process.