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Random access method and equipment

A random access and physical random access technology, applied in the field of communication, can solve the problems affecting the random access performance of terminal equipment and the inability to send PRACH, so as to avoid the failure of random access for a long time and improve performance

Active Publication Date: 2022-04-12
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the terminal device may fail in LBT, at this time, the terminal device cannot send PRACH on the predetermined PRACH resource, thus affecting the random access performance of the terminal device

Method used

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  • Random access method and equipment
  • Random access method and equipment

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Embodiment Construction

[0043] The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.

[0044]The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile Communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (Wideband Code Division Multiple Access, WCDMA) system, Long Term Evolution (Long Term Evolution, LTE) system, LTE Frequency Division Duplex (Frequency Division Duplex, FDD) system, LTE Time Division Duplex (Time Division Duplex, TDD) system, Advanced Long Term Evolution (Advanced long term evolution, LTE-A) system, New Radio (NR) system, evolution system of NR system, LTE (LTE-based access to unlicensed spectrum, LTE-U) system on unlicensed frequency band, non- NR (NR-based access to unlicensed spectrum, NR-U) system, Universal Mobile Telecommunications System (UMTS...

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PUM

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Abstract

Provided are a random access method and device, which can improve the performance of random access of a terminal device on an unlicensed frequency band. The method comprises: a terminal device receiving a PDCCH, the PDCCH comprising PRACH resource indication information, the PRACH resource indication information being used for indicating a public PRACH resource scheduled by a network device, the PRACH resource indication information comprises at least one of the following information: information of the PRACH resource, information of a synchronization signal block (SSB) associated with the PRACH resource, and information of a PRACH lead code transmitted on the PRACH resource; and the terminal equipment uses the PRACH resource to send the PRACH according to the PRACH resource indication information.

Description

[0001] This application is a divisional application of the Chinese patent application with application number 2019800960098. The filing date of the original application is June 14, 2019, and the title is "Method and Device for Random Access". technical field [0002] The embodiments of the present application relate to the communication field, and more specifically, to a random access method and device. Background technique [0003] In the 5G system or the New Radio Access Technology (NR) system, data transmission on an unlicensed frequency band (unlicensed spectrum) is supported. In an NR (NR-based access to unlicensed spectrum, NR-U) system in an unlicensed frequency band, terminal devices and network devices need to perform signal transmission based on the principle of Listen Before Talk (LBT). That is, before the signal is sent, it is necessary to perform channel detection. It can only be sent when the monitoring result is that the channel is idle, and cannot be sent wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04W74/00H04W74/08
CPCH04W56/001H04W74/002H04W74/0833H04W72/23
Inventor 贺传峰
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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