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Method for realizing emergency service detection and switch-in control function entity

A technology for controlling functional entities and emergency services, applied in emergency connection processing, emergency/dangerous communication services, connection management, etc., can solve problems such as unrealizable, non-supporting SIP, and user terminals not supporting SIP, etc., to reduce capacity requirements, The effect of small changes on the live network

Active Publication Date: 2007-02-07
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Then at least the following factors will lead to the failure of the IMS emergency service detection method described in the previous paragraph in the PES framework: 1. The user terminal does not have the number analysis capability and cannot detect emergency service calls; 2. The user terminal does not support SIP , then the SIP signaling is not sent between the user terminal and the AG, and the AG may not support SIP. In this case, the user terminal cannot pass the emergency service indication to the PES through the AG, so the PES cannot detect the emergency service call
[0008] In short, the existing methods for detecting emergency services cannot be applied to PES architectures with low user terminal capabilities, so that emergency services cannot be implemented in such PES architectures.

Method used

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  • Method for realizing emergency service detection and switch-in control function entity
  • Method for realizing emergency service detection and switch-in control function entity
  • Method for realizing emergency service detection and switch-in control function entity

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Embodiment Construction

[0031] The invention discloses a method for realizing emergency service detection, and its main design idea is: ACF is responsible for judging whether the current call is an emergency service call, and notifies RCF when it is judged to be an emergency service call, so that RCF can give priority to the current call signaling Routing to PSAP / ECC for emergency services.

[0032] figure 2 It is a schematic diagram of the processing flow of a preferred embodiment of the method of the present invention. In this embodiment, the user terminal is a PSTN terminal, and needs to send call signaling to the ACF through the AG. Such as figure 2 As shown, the specific processing includes:

[0033] Step 201: The user terminal goes off-hook to trigger the AG.

[0034] Step 202: The AG sends a H.248 notification (NOTIFY) message to the ACF to notify the ACF of the off-hook event of the user terminal. ACF returns H.248 notification response (NOTIFY_REPLY) message to AG.

[0035]Step 203: ...

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Abstract

The invention relates to a method for checking emergency service, which comprises: user terminal, access control solid (ACF), and route control solid (RCF). And said method comprises: A, ACF receives the calling signal of user terminal; B, ACF judges if present call is emergency call, if it is, informs RCF as present call is emergency one, or else, ending said process. The invention also discloses one ACF.

Description

technical field [0001] The invention relates to an emergency service realization technology, in particular to a method for realizing emergency service detection and an access control function entity (ACF). Background technique [0002] The so-called emergency business refers to the business that provides emergency assistance in critical situations where personal / public health and safety, life / property are in danger. The service bearer network should provide high-priority call services for emergency services, and route the call to the most suitable public safety access point (PSAP) according to the geographical location information of the calling user. Calls are diverted to the most appropriate Emergency Call Center (ECC), which then assists the caller quickly. [0003] The European Telecommunications Standards Institute (ETSI) has proposed a scheme to implement emergency services in the public switched telephone network / ISDN emulation subsystem (PES). PES is a subsystem of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M3/42H04Q7/38H04W4/90
CPCH04M1/72536H04W76/007H04L29/06217H04L29/08558H04W4/22H04L67/12H04L29/06197H04L65/1006H04L65/1016H04W76/50H04W4/90H04M1/72418H04L65/1104
Inventor 吴东君
Owner HUAWEI TECH CO LTD