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Method for transferring emergent service session and emergent service system

A technology for emergency services and emergency conversations, applied in emergency/dangerous communication services, emergency connection processing, wireless communication services, etc., can solve the problems of not being able to carry IMEI, unable to realize emergency business session switching, etc., to overcome the continuous switching of voice services Effect

Active Publication Date: 2010-08-11
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0063] Under the existing SRVCC architecture, since no card user terminal or unauthenticated user terminal needs to use IMEI (International Mobile Equipment Identity, International Mobile Equipment Identity) to initiate a call, and the ISUP message in step A208 cannot carry IMEI, it is impossible to use IMEI As session association information, it is impossible to switch emergency business sessions

Method used

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  • Method for transferring emergent service session and emergent service system
  • Method for transferring emergent service session and emergent service system
  • Method for transferring emergent service session and emergent service system

Examples

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Embodiment Construction

[0108] The core idea of ​​the present invention is to set up an emergency SCC AS (E-SCCAS) in the local network of the UE, and add an interface Ms between the E-SCC AS and the enhanced MSC. This interface realizes: when the enhanced MSC receives the emergency After the switching request, the emergency session association information is sent to the emergency SCC AS through the Ms interface, and the emergency SCC AS uses the emergency session association information to associate and update the remote session branch.

[0109] In addition, the Ms interface is also used to indicate that the emergency SCC AS user has accessed when the enhanced MSC receives the handover access message (processing the access signaling message); it can also be used when the enhanced MSC receives the handover complete Signal message), instruct the emergency SCC AS to release the source session Leg.

[0110] The interface may use MAP signaling or SIP messages to transfer information or enhanced ISUP mess...

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Abstract

The invention relates to a method for transferring an emergent service session and an emergent service system. The method for transferring the emergent service session is characterized in that user equipment (UE) is accessed from the network through the long term evolution / system architecture evolution (LTE / SAE) and made to create the emergent service session which is anchored to a service centralization and continuity application server (SCC AS) with a public safety answering point (PSAP). The method for transferring the emergent service session and enabling the emergent service session to be accessed through a circuit switched (CS) domain comprises the following steps: an enhanced mobile switch center (MSC) adopts the mobile application part (MAP) signaling, or the session initiation protocol (SIP) information or the enhanced ISDN user protocol (ISUP) information to send the information related to the emergent service session to the emergent SCC AS; the emergent SCC AS searches the emergent service session according to the information related to the emergent service session and updates the far-end session branch of the emergent service session, wherein the far-end session branch is the emergent service session resource which is established before transferring the emergent service session which is anchored to the SCC AS with the PSAP; and the enhanced MSC informs the UE of being accessed from the GSM EDGE radio access network (GERAN) or universal terrestrial radio access network (UTRAN) in the CS domain.

Description

technical field [0001] The invention relates to the communication field, in particular to a method for switching an emergency service session and an emergency service system. Background technique [0002] In order to ensure the continuity of voice services between the Circuit Switched (CS for short) domain and the IP (Internet Protocol, Internet Protocol) multimedia subsystem (IP Multimedia Core Network Subsystem, IMS for short) network, the traditional voice service continuity (Voice Call Continuity, referred to as VCC) solutions such as figure 1 shown. [0003] Among them, after the dual-mode user equipment (User Equipment, referred to as UE) is successfully registered in both the CS domain and the IMS network, when the UE initiates a voice service in the CS domain or the IMS network, the voice service is anchored to the centralized control service of the IMS network In the session service continuity application server (ServiceCentralization and Continuity Application Se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/16H04W4/22H04W76/02H04W76/06H04W80/10H04W4/90
CPCH04W4/22H04W76/007H04W36/0022H04W76/50H04W4/90H04W36/00226
Inventor 游世林蔡继燕李振东郝振武
Owner ZTE CORP
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