A random access method and device

A technology of random access and random access response, applied in the field of communication, can solve the problems of high signaling overhead and high delay

Inactive Publication Date: 2019-06-04
HUAWEI TECH CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

[0009] This application provides a random access method and device to solve the problems o

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  • A random access method and device

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Embodiment Construction

[0036] The application will be described in further detail below in conjunction with the accompanying drawings.

[0037] The embodiments of the present application provide a random access method and device, which are used to solve the problems of large signaling overhead and high time delay caused by the random access method in the prior art. Wherein, the method and the device described in this application are based on the same inventive concept, and since the method and the device have similar problem-solving principles, the implementation of the device and the method can be referred to each other, and the repetition will not be repeated.

[0038] Hereinafter, some terms used in this application are explained to facilitate the understanding of those skilled in the art.

[0039]1) Terminal equipment, also known as user equipment (UE), is a device that provides data connectivity to users, such as handheld devices with wireless connection functions, vehicle-mounted devices, wear...

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Abstract

The invention discloses a random access method and a random access device, which are used for solving the problems of relatively high signaling overhead and relatively high time delay caused by a random access method in the prior art. In the method, The base station pre-configures an uplink resource for the terminal device to send the random access information. Therefore, the terminal device doesnot need to wait for the base station to send the random access information after returning the random access response. Therefore, the base station can perform random access according to the preamblesequence and the random access information sent by the terminal equipment. and returning a random access response containing the competition solution message to the terminal device, the random accesssuccess of the terminal equipment is notified; Compared with the existing random access method, the waiting time that the terminal equipment must wait for receiving the random access response to sendthe random access information is saved; and the base station also feeds back the feedback competition solution message and the random access response to the terminal equipment, so that the access timeis further saved, and compared with the existing random access process, the process is reduced, the signaling overhead can be reduced, and the time delay is reduced.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular to a random access method and device. Background technique [0002] In a long term evolution (LTE) system, a random access process is a process in which a terminal device requests access to a base station, and the terminal device establishes a connection with a cell through random access and obtains uplink synchronization. Wherein, the random access in the LTE system is divided into contention-based random access and non-contention-based random access, but the scenario of using contention-based random access is relatively common. [0003] At present, the basic process of contention-based random access is divided into the following steps, and random access is completed through the following steps: [0004] 1. The terminal device acquires random access configuration information broadcast by the base station, where the random access configuration information inc...

Claims

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Application Information

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IPC IPC(8): H04W74/08
Inventor 李翔王勇庞继勇
Owner HUAWEI TECH CO LTD
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