Random access method, terminal device and network device

A technology of random access and terminal equipment, applied in the field of communication

Active Publication Date: 2020-03-31
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 device and network device
  • Random access method, terminal device and network device
  • Random access method, terminal device and network device

Examples

Experimental program
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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

The embodiment of the invention provides a random access method, a terminal device and a network device. The method comprises the following steps: the terminal device sending random access informationto the network device, wherein the random access information is used for indicating the sending times of sending the random access information to the network device by the terminal device, or the random access information is used for indicating the length of a random access response window corresponding to the random access information, and the length of the random access response window is configurable; and the terminal device detecting a random access response in the random access response window. According to the random access method, the terminal device and the network device provided bythe embodiment of the invention, the length of the random access response window can be flexibly changed along with the sending times of the random access information so as to meet the requirements ofdifferent 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 Applications(China)
IPC IPC(8): H04W74/08H04W74/00H04L5/00
CPCH04W74/0833H04W74/004H04L5/0053H04L5/0078H04W72/0453
Inventor 张莉莉
Owner HUAWEI TECH CO LTD
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