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Random access method, terminal equipment and network equipment

A technology of random access and terminal equipment, applied in transmission path sub-channel allocation, digital transmission system, signaling allocation, etc., to achieve the effect of flexible and changeable transmission times

Active Publication Date: 2022-04-22
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present application provides a random access method, terminal equipment and network equipment, which are used to solve the technical problem of how to set the length of the RAR window in the unlicensed spectrum system

Method used

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  • Random access method, terminal equipment and network equipment
  • Random access method, terminal equipment and network equipment
  • Random access method, terminal equipment and network equipment

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0101] figure 1 It is a frame diagram of a communication system involved in the embodiment of this application. Such as figure 1 As shown, the communication system includes: a network device 01 and a terminal device 02 . in,

[0102] Network device 01: may be a base station, or various wireless access points, or may refer to a device in an access network that communicates with a terminal device through one or more sectors on an air interface. The base station can be used to convert received over-the-air frames to and from IP packets, acting as a router between the wireless terminal and the rest of the access network, which can include an Internet Protocol (IP) network. The base station may also coordinate attribute management for the air interface. For example, the base station may be a base transceiver station (BTS) in global system of mobile communication (GSM) or code division multiple access (CDMA), or it may be a wideband code division multiple access (WCDMA) A base ...

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PUM

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Abstract

An embodiment of the present application provides a random access method, a terminal device, and a network device. The method includes: the terminal device sends random access information to the network device, and the random access information is used to instruct the terminal device to send a random access message to the network device. The number of times the device sends the random access information, or the random access information is used to indicate the length of the random access response window corresponding to the random access information, and the length of the random access response window is Configurable: the terminal device detects a random access response within the random access response window. The random access method, terminal equipment, and network equipment provided in the embodiments of the present application can make the length of the random access response window flexible with the number of times the random access information is sent, so as to meet the requirements of different unlicensed spectrum systems.

Description

technical field [0001] The embodiments of the present application relate to communication technologies, and in particular, to a random access method, terminal equipment, and network equipment. Background technique [0002] In order to solve the problem of less available frequency domain resources in the licensed spectrum, the unlicensed spectrum communication system can completely work on the unlicensed spectrum without relying on the assistance of the licensed spectrum. That is, the network device sends downlink transmission (eg, control information, service data) on the unlicensed spectrum, and the terminal device sends uplink transmission (eg, control information, service data) on the unlicensed spectrum. At present, in order to share unlicensed spectrum with other systems (such as communication systems of different operators, Wi-Fi networks, etc.), the sending device in the unlicensed spectrum system uses a listen before talk (LBT) channel The access mechanism uses chan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W74/08H04W74/00H04L5/00
CPCH04W74/0833H04W74/004H04L5/0053H04L5/0078H04W72/0453
Inventor 张莉莉
Owner HUAWEI TECH CO LTD