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Message sending method, apparatus, device, and system in random access process

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

Active Publication Date: 2019-07-05
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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  • Message sending method, apparatus, device, and system in random access process
  • Message sending method, apparatus, device, and system in random access process
  • Message sending method, apparatus, device, and system in random access process

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Embodiment Construction

[0130] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with 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 a random access preamble sequence to try to access the network to the establishment of a basic signaling connection with the network. The random access process is one of the most basic requirements for any cellular communication system. One, it is used to enable the terminal to establish data communication ...

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Abstract

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

Description

technical field [0001] The present disclosure relates to the field of communications, and in particular to a message sending method, device, device and system for a random access procedure. Background technique [0002] The random access process refers to the process from when the terminal sends a random access preamble and tries to access the network side to when 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 (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 RAR sent to multiple terminals (User Equipment, UE) in one Medium Access Control Protocol Data Unit (Medium Access Control Protocol Data Unit, MAC PDU) to reduce downlink overhead. [0004] However, the above multiplexing proce...

Claims

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Application Information

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