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Emergency call control method, device and system

A technology of emergency call and control method, applied in the field of communication, can solve problems such as endangering the lives of victims of disasters, unsuitable for emergencies, etc., and achieve the effect of improving disaster resistance and increasing flexibility

Active Publication Date: 2013-01-23
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practical applications, the existing access blocking methods are not suitable for all emergencies. For example, when large-scale natural disasters occur, emergency calls initiated by many ordinary users also need to be transmitted in the shortest time to the receiving party, otherwise, it will cause irreparable losses, such as endangering the lives of the victims, etc.

Method used

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  • Emergency call control method, device and system
  • Emergency call control method, device and system
  • Emergency call control method, device and system

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Embodiment Construction

[0023] In order to improve the operational flexibility of the wireless mobile network in the face of emergencies, in the embodiment of the present invention, after receiving the user's emergency call indication, the terminal generates a random number for the emergency call, and selects and executes the emergency call according to the value of the random number. Emergency call access or perform emergency call blocking.

[0024] In this embodiment, there are many ways to select the emergency call control mode according to the value of the random number, for example: compare the random number with the preset access probability or blocking probability, and select to execute the emergency call according to the comparison result Block or enforce emergency call access. Another example: determine the time to perform emergency call access according to the value of the random number. If the value is 0, the emergency call access will be performed immediately; if the value is k, 0<k≤K, th...

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PUM

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Abstract

The invention discloses an emergency call control method which comprises the following steps: receiving an emergency call instruction of a user, generating a random number aiming at the emergency call, and selectively executing the access of the emergency call or the prevention of the emergency call according to the value of the random number. In this way, for emergencies in any scene, under the condition that system overload can not be caused, the invention ensures that partial emergency calls initiated by the user are accessed to the network side, thereby improving the disaster resistance of the overall system and increasing the flexibility of system operation. The invention simultaneously discloses a terminal and a communication system.

Description

technical field [0001] The present invention relates to the communication field, in particular to an emergency call control method, device and system. Background technique [0002] In a wireless mobile network, in order to prevent system overload, when an emergency occurs (such as a game day, a natural disaster), the access of the terminal is usually controlled by means of Access Class Barring, the so-called Access Class Barring Blocking is a mechanism in which the terminal judges whether to allow access based on system information before establishing a connection between the terminal side and the network side, and controls the access accordingly according to the judgment result. [0003] Currently, when an emergency occurs, only emergency calls initiated by users whose priority levels meet preset conditions are allowed to be accessed. Taking the long-term evolution system (LTE system) as an example, in the LTE system, when an emergency occurs, if the user initiates an emer...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/22H04W48/18H04W4/90
Inventor 杨宁胡臻平崔春风江海涛
Owner CHINA MOBILE COMM GRP CO LTD