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Random access method, apparatus and device, and storage medium

A random access and terminal equipment technology, applied in the field of communication, can solve the problems of long access time, complexity, and high signaling overhead, and achieve the goals of reducing access delay, increasing possibility, and reducing signaling overhead Effect

Active Publication Date: 2020-02-21
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From the above, it can be seen that the existing contention random access process is complex, the access time is long, and the signaling overhead is large

Method used

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  • Random access method, apparatus and device, and storage medium
  • Random access method, apparatus and device, and storage medium
  • Random access method, apparatus and device, and storage medium

Examples

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Embodiment Construction

[0151] figure 1 A schematic diagram of the communication system provided by the embodiment of this application, such as figure 1 As shown, the communication system includes network equipment and terminal equipment.

[0152] Below, some terms in this application are explained, so that those skilled in the art can understand:

[0153] A network device is a device in a wireless network, for example, a radio access network (radio access network, RAN) node that connects a terminal to the wireless network. Currently, examples of some RAN nodes are: gNB, transmission reception point (transmission reception point, TRP), evolved Node B (evolved Node B, eNB), radio network controller (radio network controller, RNC), node B (Node B, NB), base station controller (base station controller, BSC), base transceiver station (base transceiver station, BTS), home base station (for example, homeevolved NodeB, or home Node B, HNB), base band unit (base band unit, BBU ), or a wireless fidelity (w...

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PUM

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Abstract

The invention provides a random access method, apparatus and device, and a storage medium. The random access method comprises the following steps that: terminal equipment scrambles the first identification information of the terminal equipment by adopting OCC, and sends a first message to the network equipment; and the network equipment receives a first message sent by the terminal equipment, andsends a second message to the terminal equipment according to the first message, wherein the second message comprises identification information of one or more pieces of terminal equipment with successful random access, so that the terminal equipment can determine whether the random access of the terminal equipment is successful or failed according to whether the one or more pieces of terminal equipment comprise the first identification information of the terminal equipment or not. That is to say, the random access method is a two-step random access method, simplifies the process of random access, reduces the access delay, and reduces the signaling overhead. Meanwhile, the first identification information of the terminal equipment is scrambled by adopting the OCC, so that the possibility that the first identification information of different terminal equipment is different can be increased, and the collision probability is further reduced.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular to a random access method, device, equipment and storage medium. Background technique [0002] After searching for a cell, the terminal device can perform downlink synchronization with the cell, so as to be able to receive downlink data. However, the terminal equipment needs to perform uplink synchronization with the cell before sending uplink data. Among them, the terminal device can perform uplink synchronization with the cell through the contention random access process, and the contention random access process is completed in four steps: the terminal device sends a preamble (namely Msg1) to the network device, and the network device sends a message to the network device according to the received preamble code. The terminal device sends a Random Access Response (Random Access Response, RAR) (that is, Msg2), and then the terminal device and the network devi...

Claims

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Application Information

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IPC IPC(8): H04W74/00H04W74/08
CPCH04W74/008H04W74/0833H04J13/004H04J13/18H04W76/11H04L5/0016H04W72/0453H04W74/0808
Inventor 吴霁朱俊贾琼
Owner HUAWEI TECH CO LTD