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Method and device for shortening access delay, user equipment and base station

A technology of user equipment and base stations, applied in the field of communication, can solve problems such as large access delays

Active Publication Date: 2019-03-08
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The contention-based random access process in the related art can cause a large access delay for UEs that cannot successfully access

Method used

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  • Method and device for shortening access delay, user equipment and base station
  • Method and device for shortening access delay, user equipment and base station
  • Method and device for shortening access delay, user equipment and base station

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Embodiment Construction

[0104] 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 invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.

[0105] The technical solutions provided in this disclosure are applicable to mobile networks, such as Long Term Evolution (LTE for short) and new generation networks (such as 5G networks). In mobile networks, UEs can access The internet. In the contention-based random access process, the UE sends a preamble to the base station through message one (MSG1) of the random access process, and the bas...

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Abstract

The present disclosure is directed to a method and device for shortening access delay, user equipment, and a base station. The method includes: receiving a third message of a random access procedure sent by the user equipment; sending a fourth message of the random access procedure to the user equipment when determining to reject the user equipment access, wherein the fourth message carries a reason value that base station rejects access. The technical solution of the present disclosure can ensure that the UE selects a suitable base station to perform random access when receiving the message 4that the contention solution is unsuccessful, and the problem of the access delay caused by random access to the non-accessible base station can be avoided.

Description

technical field [0001] The present disclosure relates to the field of communication technologies, and in particular to a method, device, user equipment and base station for shortening access delay. Background technique [0002] In the related art, when a user equipment (User Equipment, referred to as UE) performs a contention-based random access process, the base station can perform contention resolution through the message 4 MSG4 of the random access process. If the UE finds that there is no contention resolution after receiving MSG4 If successful, the random access process will be initiated again after a period of time according to the fallback parameters, until the number of random accesses initiated by the UE reaches the maximum allowed number of random accesses, and the UE cannot successfully access the base station, the UE will choose other The base station performs random access. The contention-based random access process in the related art may cause a large access d...

Claims

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Application Information

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IPC IPC(8): H04W36/00H04W36/08H04W74/00H04W74/08H04W76/18
CPCH04W74/002H04W74/0833H04W76/18H04W48/20H04W48/02H04W36/08H04W48/14H04W74/008
Inventor 洪伟
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD