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A random access control method and device

A random access and access control technology, applied in wireless communication, electrical components, etc., can solve problems affecting system performance, signaling impact, etc., and achieve the effect of reducing signaling impact and ensuring network stability

Active Publication Date: 2020-07-03
CHINA MOBILE COMM LTD RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a random access control method and device, which solves the problem in the prior art that a large number of terminals initiate random access at the same time, causing signaling impact and affecting system performance.

Method used

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  • A random access control method and device
  • A random access control method and device
  • A random access control method and device

Examples

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no. 1 example

[0074] like figure 1 As shown, the second embodiment of the present invention provides a random access control method, including:

[0075] Step 11, acquiring the broadcast message of the serving cell of the terminal;

[0076] Step 12, if the random access period of the physical random access channel PRACH carried in the broadcast message is less than the first time threshold, according to the random access period, the preset random access completion time length and the terminal identification code , determine the target time domain position where the terminal initiates random access;

[0077] Step 13, initiate a random access procedure at the target time domain position.

[0078] In the above-mentioned embodiments of the present invention, the terminal actively judges whether to initiate random access discretely or directly initiate random access according to the broadcast message of the serving cell, and determines the time domain position where the terminal initiates rando...

no. 2 example

[0114] like Figure 4 As shown, the first embodiment of the present invention provides a random access control method, including:

[0115] Step 41, according to the current time of the terminal, the terminal identification code and the target time threshold value, determine the starting time of the random access of the terminal;

[0116] Step 42, initiate a random access procedure at the start time.

[0117] Specifically, step 41 includes:

[0118] Step 411, when the terminal has a data transmission requirement, generate access control information;

[0119] Step 412: If the access control information includes a distributed access identifier, determine the starting time of random access of the terminal according to the current time of the terminal, the terminal identification code and the target time threshold.

[0120] In the above embodiments of the present invention, when the terminal has a data transmission requirement, the control unit of the terminal generates access c...

no. 3 example

[0132] like Figure 5 As shown, the third embodiment of the present invention also provides a random access control device, including:

[0133] An acquisition module 51, configured to acquire a broadcast message of a serving cell of the terminal;

[0134] The first location determination module 52 is configured to complete the random access according to the random access period and preset random access if the random access period of the physical random access channel PRACH carried by the broadcast message is less than the first time threshold The length of time and the terminal identification code determine the target time domain position where the terminal initiates random access;

[0135] The first access module 53 is configured to initiate a random access procedure at the target time domain position.

[0136] Specifically, the device described in the third embodiment of the present invention also includes:

[0137] The second position determination module is configured t...

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Abstract

The present invention provides a random access control method and device. The method comprises the steps of: obtaining a broadcast message of a service cell of a terminal; if a random access cycle ofa PRACH carried by the broadcast message is smaller than a first time threshold, determining a target time domain position of the terminal initiating random access according to the random access cycle, a preset random access completion time duration and a terminal identification code; and at the target time domain position, initiating a random access process. According to the embodiment of the invention, the time of different terminals initiating random access is determined according to the terminal identification codes and at least one time threshold to ensure the different delay time of theterminals initiating random access as far as possible so as to allow lots of terminals to discretely initiate random access, reduce the signaling impact on the system and ensure the network stability.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a random access control method and device. Background technique [0002] In LTE (Long Term Evolution) and NB-IoT (Cellular-based Narrowband Internet of Things) systems, the process of terminal access to the network is a random access process. The process of a terminal initiating random access is random for the terminal, and there are a large number of terminals in the unit time The possibility of initiating random access at the same time. Especially for IoT terminals, in order to save power, the communication module of IoT terminals is usually powered off, and its control unit will notify the communication module to activate access to the network to send data at the set clock time, while a large number of IoT terminals (For example, a water meter in a residential building, etc.) The activation clocks set are often the same, which will lead to a large numbe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W74/00H04W74/08
CPCH04W74/002H04W74/0833
Inventor 韩延涛韩晶于强
Owner CHINA MOBILE COMM LTD RES INST
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