Random access processing method and device

Abstract

The invention discloses a random access processing method and a device. The method comprises the steps of generating random access response information after receiving the random access request sent by a user equipment, wherein the random access response information carries indication information, and the indication information is used to indicate a preamble transmission location corresponding tothe scheduling RA RNTI of the random access response information; and and sending the random access response information to the user equipment. According to the invention, the indication information is added for indicating the preamble transmission location corresponding to the scheduling RA RNTI of the random access response message. In this way, the UE can determine, according to the indicationinformation, which preamble transmission location is corresponded to the scheduling RA RNTI of the random access response message, so as to reduce the ambiguity of the preamble transmission location.

Description

Technical field [0001] The present invention relates to the field of communication technology, and in particular to a method and device for processing random access. Background technique [0002] In related technologies, in a contention-based random access process, a user equipment (UE) sends a preamble (preamble) to a base station through a random access request message. The base station uses RA-RNTI (Random Access Radio Network Temporary Identifier) ​​to mark the location of the preamble, and then notifies the UE of the RA-RNTI. The UE receives the random access response message in the random access response window, uses RA-RNTI to determine the corresponding preamble transmission position, and then determines the preamble corresponding to the currently received random access response message, that is, to determine the currently received Whether the random access response message corresponds to the random access request sent by itself before. However, for NR-U (new radio-unli...

AI Technical Summary

Problems solved by technology

However, for NR-U (new radio-unlicensed, new air interface-unlicensed frequency band), the base station may not be able to send random access messages within the random access response window under the principle of Listen before Talk (LBT). response message

When the random access response message is sent successfully, the scheduling RA-RNTI of the random access response message may correspond to multiple preamble sending positions, so that the UE cannot determine which preamble sending position the RA-RNTI corresponds to.

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