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Method for implementing forced registration of urgent call

A technology for emergency calls and implementation methods, applied in emergency/dangerous communication services, nan, electrical components, etc., to achieve the effect of effective communication

Inactive Publication Date: 2011-03-16
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The problem with the prior art solution is that if the common subscriber number of the emergency call subscriber has enabled services such as call barring and unconditional forwarding, the PSAP may not be able to The user number of the user will be called back directly to the user

Method used

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  • Method for implementing forced registration of urgent call
  • Method for implementing forced registration of urgent call
  • Method for implementing forced registration of urgent call

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0023] The method for realizing mandatory emergency call registration provided by the present invention includes the following steps: (a) the user equipment UE is in the home network, and has registered with the IP Multimedia Subsystem IMS with a common user number; (b) the UE initiates an emergency call request for the IMS ; (c) The proxy call session control function P-CSCF receives the call request and judges that the call request is an emergency call request, and the calling number in the emergency call request carries an ordinary user number, and the P-CSCF according to the local policy The UE is required to perform emergency call registration; (4) The UE receives the registration request from the P-CSCF, uses the emergency call number to perform emergency call registration, and then re-initiates the emergency call. The present invention uses the P-CSCF to force users who have not registered for emergency calls to first use the emergency call number to register for emergen...

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PUM

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Abstract

The present invention provides a method to realize forced registration of emergency calls, which comprises procedures below: (a) An user equipment UE has received registration of IP multimedia subsystem (IMS) with a common user number in its network; (b) An user of the UE initiates a IMS emergency call request; (c) A proxy call session control function (P-CSCF) receives the call request and judges the request as an emergency call request. The emergency call request carries a common user number. Thus, the P-CSCF requires the UE to realize emergency call registration according to a local policy; (d) The UE receives the request from the P-CSCF to register the emergency call with an emergency call number and then restart an emergency call. The present invention enables a PSAP to avoid services constricting users and directly call back through the emergency call number, thus ensuring prompt contact with a calling user.

Description

technical field [0001] The invention relates to an emergency communication technology in the field of digital mobile communication, and more particularly relates to a method for realizing mandatory emergency call registration of an Internet Protocol Multimedia Subsystem (IMS, IP Multimedia Core Network Subsystem). Background technique [0002] When encountering an emergency (such as a natural disaster, etc.) and needing assistance, the user can call a specific number (such as 110, 120 in China, 911 in the United States, etc.) through the IMS network to contact the emergency call center. After the user calls the emergency call center, the emergency call center needs to call back the user due to reasons such as unclear location description. [0003] figure 1 Is the IMS emergency call reference frame. The entire framework includes user equipment (UE, UserEquipment,) 101, proxy call session control function (P-CSCF, Proxy Call Session Control Function,) 102, serving call ses...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/22H04W60/00H04L29/06H04W4/90
Inventor 张强
Owner ZTE CORP