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Emergency call communication establishment method and device, network equipment, terminal

An emergency call and communication establishment technology, applied in the field of communication, can solve the problems of failure of emergency call, unable to know that emergency call is supported, non-compliance with 3GPP related protocols, etc., to reduce implementation complexity, reduce signaling interaction, and improve success rate Effect

Active Publication Date: 2021-08-27
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the network has converted the initial dialed ordinary phone number to an emergency number in the IMS domain, if the IMS domain fails and then switches back to the circuit domain, then the UE cannot know whether the current network circuit domain supports emergency calls, which may Cause emergency phone calls to fail
Further, the above scheme does not comply with the relevant 3GPP agreements

Method used

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  • Emergency call communication establishment method and device, network equipment, terminal
  • Emergency call communication establishment method and device, network equipment, terminal
  • Emergency call communication establishment method and device, network equipment, terminal

Examples

Experimental program
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Embodiment Construction

[0027] As mentioned in the background technology, if the IMS domain supports the emergency call service, but the circuit domain does not support the emergency call service, the existing technical solution uses the network to issue instruction information, and the UE re-initiates the IMS domain emergency call procedure to make an emergency call. If the emergency call in the IMS domain fails, it may cause the emergency phone call to fail.

[0028] figure 1 It is a schematic flowchart of a method for completing emergency communication establishment using 380 response information in the prior art solution. like figure 1 As shown, the UE makes a call in the IMS domain and sends a non-emergency call request message (INVITE in the figure); the Proxy-Call Session Control Function (Proxy-Call Session Control Function, P-CSCF for short) network element (Network Element, After receiving the INVITE information, the NE for short, also known as the network element, forwards it to the Serv...

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PUM

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Abstract

A communication establishment method and device for an emergency call, a network device, and a terminal. The communication establishment method includes: receiving non-emergency call request information sent by user equipment; when it is recognized that the non-emergency call request information carries an emergency call number , executing an emergency call process to obtain emergency response information associated with the non-emergency call request information; modifying the emergency response information to non-emergency response information, and sending the non-emergency response information to the user equipment. The technical scheme provided by the invention can solve the compatibility problem that the IMS domain supports the emergency telephone service, but the circuit domain does not support the emergency telephone service, and can improve the success rate of the emergency telephone call.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a communication establishment method and device for an emergency call, network equipment, and a terminal. Background technique [0002] Currently, in many countries and regions, there is a situation that operator networks do not support making emergency calls in a circuit switched domain (also known as a circuit switched domain, CS for short). Therefore, when a user equipment (User Equipment, UE for short) makes an emergency call in the operator network, it still needs to make a call as a normal phone. For example, in mainland China, when calling the emergency number 110 in the circuit domain, it is dialed as an ordinary phone. [0003] However, as the network deployment becomes more and more perfect, the emergency telephone service based on the Internet Protocol Multimedia Core Network Subsystem (IMS) domain has been put into commercial use in more and more countr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/90H04W4/20H04W76/50
CPCH04W4/20H04W4/90H04W76/50
Inventor 陈贤亮赵以国倪金金何毅
Owner SPREADTRUM COMM (SHANGHAI) CO LTD