Random access method and device, equipment and storage medium

Abstract

The invention discloses a random access method and device, equipment and a storage medium, and belongs to the technical field of wireless communication. The method comprises the steps of sending a random access preamble to a base station through a first time domain resource, and obtaining an index value of the first time domain resource; obtaining an index difference value between the first time domain resource and a second time domain resource, wherein the index difference value is determined according to a time delay of data transmission between UE and the base station, and the second time domain resource is a time domain resource used by the base station to receive the random access preamble sent by the UE; adding the index value of the first time domain resource and the index difference value to obtain an index value of the second time domain resource; obtaining a random access radio network temporary identifier RA-RNTI according to the index value of the second time domain resource; and receiving a random access response RAR sent by the base station, and descrambling a cyclic redundancy check code CRC of the RAR by using the RA-RNTI. According to the random access method provided by the embodiment of the invention, the random access efficiency can be improved.

Description

technical field [0001] The present application relates to the technical field of wireless communication, and in particular to a random access method, device, equipment and storage medium. Background technique [0002] In a wireless communication system, random access is a common processing mechanism. Through random access, a user equipment (English: User Equipment; UE for short) can achieve synchronization with a cell and obtain uplink resources. [0003] In related technologies, when performing random access, the UE can send a random access preamble (English: preamble) to the base station, and at the same time, the UE can obtain the physical random access channel used by itself to send the random access preamble through the broadcast of the base station (English: Physical Random Access Channel; abbreviation: PRACH) index value of the first time slot, UE can use the index value to calculate random access radio network temporary identity (English: Random Access-RadioNetwork T...

AI Technical Summary

Problems solved by technology

However, when the RTD between the UE and the base station is greater than the duration of a single time slot, the RA-RNTI calculated by the base station is different from the RA-RNTI calculated by the UE. At this time, the UE cannot successfully descramble the RAR, so the It will cause the failure of random access, thus affecting the efficiency of random access

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