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Random access method and device, and terminal

A random access, random access channel technology, applied in electrical components, wireless communication, error prevention/detection through transmission repetition, etc., can solve problems affecting random access efficiency and achieve the effect of improving random access performance

Pending Publication Date: 2022-03-22
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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AI Technical Summary

Problems solved by technology

In the two-step random access process, the time related to MSGA retransmission is not yet clear, which affects the random access efficiency

Method used

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  • Random access method and device, and terminal
  • Random access method and device, and terminal
  • Random access method and device, and terminal

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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 drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0044] The technical solution of the embodiment of the present application can be applied to various communication systems, such as: Global System of Mobile communication (Global System of Mobile communication, GSM) system, Code Division Multiple Access (Code Division Multiple Access, CDMA) system, Wideband Code Division Multiple Access (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (General Packet Radio Service, GPRS), Long Term Evolution ...

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Abstract

The embodiment of the invention provides a random access method and device and a terminal, and the method comprises the steps: preparing to retransmit a first uplink data channel in a third time interval after a first downlink data channel under the condition that the terminal determines to retransmit the first uplink data channel in a first message, the first message comprises a first random access channel and a first uplink data channel; wherein the first downlink data channel is used for bearing a second message, and the second message is a response message of the first message.

Description

[0001] This application is a divisional application of an application with an application date of July 25, 2019, an application number of 2019800942013, and an invention title of "a random access method, device, and terminal". technical field [0002] The embodiments of the present application relate to the field of mobile communication technologies, and in particular to a random access method, device, and terminal. Background technique [0003] In a Long Term Evolution (Long Term Evolution, LTE) system, the random access process adopts a four-step random access process. The four-step random access procedure in the LTE system is still used in the New Radio (NR) system. With the discussion of standardization, it is considered that the four-step random access process is cumbersome and will bring a large delay to the terminal's access, so a two-step random access process is proposed. MSG1 and MSG3 in the four-step random access process are transmitted through MSGA in the two-s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/12H04W74/08
CPCH04W74/0833H04W72/1221H04W72/20H04W74/085H04W74/006H04L1/08H04W74/002H04W74/0841
Inventor 贺传峰
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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