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Method, device, device and system for message sending in random access procedure

A technology for random access process and message sending, which is applied in the field of communication and can solve the problem that RAR cannot use the HARQ mechanism.

Active Publication Date: 2022-08-05
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present disclosure provide a message sending method, device, device and system for a random access process, which can solve the problem that the base station multiplexes the RAR delivered to multiple terminals in one MAC PDU, which causes the RAR to fail to use the HARQ mechanism The problem

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  • Method, device, device and system for message sending in random access procedure
  • Method, device, device and system for message sending in random access procedure
  • Method, device, device and system for message sending in random access procedure

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Embodiment Construction

[0130] Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. Where the following description refers to the drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the illustrative examples below are not intended to represent all implementations consistent with this disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as recited in the appended claims.

[0131] The random access process refers to the process from when the user sends the random access preamble sequence to try to access the network until the basic signaling connection is established with the network. The random access process is one of the most basic requirements for any cellular communication system. First, it is used to enable the terminal to establish data communication with the n...

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PUM

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Abstract

The present disclosure relates to a message sending method, device, device and storage medium in a random access process, and belongs to the field of communications. The method includes: a terminal sends a message A to an access network device; the terminal receives scheduling information sent by the access network device using RA-RNTI addressing, where the scheduling information is used to schedule a time-frequency resource location of the message B ; the terminal receives the message B sent by the access network device according to the scheduling information; when the terminal determines that the message B is a message sent to the terminal alone, it sends the message B to the access network device. HARQ feedback of the above message B. The present disclosure can solve the problem that the HARQ mechanism cannot be used when multiple RARs are multiplexed into one MAC PDU for transmission.

Description

technical field [0001] The present disclosure relates to the field of communications, and in particular, to a method, apparatus, device, and system for sending a message in a random access procedure. Background technique [0002] The random access process refers to the process from when the terminal attempts to access the network side after sending the random access preamble, and until a basic signaling connection is established with the network side. [0003] In the Long Term Evolution (LTE) and New Radio (New Radio, NR) protocols of the Third Generation Partnership Project (3GPP), the random access response (Random Access) in the random access process Response, RAR) packets are relatively small, and the base station multiplexes the RARs sent to multiple terminals (UserEquipment, UE) in a medium access control protocol data unit (Medium Access Control Protocol Data Unit, MAC PDU) to send to reduce Downstream overhead. [0004] However, the above multiplexing process will ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/12H04W74/08
CPCH04W74/0833H04W72/20
Inventor 江小威
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD