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A listen-before-send lbt execution method and related device

An execution method and a part of the technology are applied in the field of LBT execution methods and related devices, and can solve the problems of inability to obtain relevant configurations, failure of sending by other users, failure of sending Msg3, etc.

Active Publication Date: 2019-12-13
BAICELLS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In MF, the UE needs to perform LBT (Listen Before Talk) before sending Msg3, and the current configuration of the LBT gap depends on the RRC configuration, but for the initial access UE, when initiating random access, no RRC is established (RadioResource Control wireless resource control) connection, so it is impossible to obtain the relevant configuration of the LBT gap when sending Msg3, which may cause Msg3 sending failure due to busy channels or other users' sending failures

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  • A listen-before-send lbt execution method and related device
  • A listen-before-send lbt execution method and related device
  • A listen-before-send lbt execution method and related device

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Embodiment Construction

[0037] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0038] In the existing random access method, the UE needs to complete the LBT operation before sending the Msg3. However, for the initial access UE, the RRC connection is not established during the random access process, so there may be mutual blocking with other users when sending Msg3 due to lack of LBT related configuration information. Aiming at this problem, the present invention provides a solution.

[0039] On the one hand, the embodiments of the present invention provide a random access method, which is applied to access devices (such as base stations eNB, access points AP, etc., and the base stations are used as examples for introduction below), such as figure 1 shown, including:

[0040] Step 11: Send a notification message carrying LBT confi...

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Abstract

Provided are a method and apparatus for performing channel access. A method for performing channel access of a network side device comprises: sending a notification message carrying access configuration information to a terminal, so that a terminal not establishing a radio resource control (RRC) connection can perform a channel access operation process according to the channel access configuration information in the notification message. A method for performing channel access of a terminal side comprises: acquiring a notification message sent by a network side device and carrying channel access configuration information; and if the terminal does not establish a radio resource control (RRC) connection, performing a channel access operation process according to the channel access configuration information in the notification message.

Description

technical field [0001] The invention relates to the communication field, in particular to a listen-before-deliver LBT execution method and a related device. Background technique [0002] Mobile communication has experienced the first generation, second generation, third generation, and fourth generation. The first generation of mobile communication refers to the initial analog, voice-only cell phone standard, which mainly uses analog technology and frequency division multiple access (FDMA) access method; the second generation of mobile communication introduces Digital technology has increased network capacity, improved voice quality and confidentiality, with "Global System for Mobile Communication" (Global System for Mobile Communication, GSM) and "Code Division Multiple Access" (CDMA IS-95) as the Representative; the third generation mobile communication mainly refers to three technologies of CDMA2000, WCDMA, and TD-SCDMA, all of which use code division multiple access as ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W74/08
CPCH04W74/0816H04W74/0833H04W72/04H04W74/08
Inventor 周明宇孙立新丁颖哲
Owner BAICELLS TECH CO LTD