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Reverse-direction one-standby service continuity implementation method and device

An implementation method and a continuous technology, applied in the field of communication, which can solve the problems of handover failure, inability to perform handover operations, inability to associate session information, etc.

Inactive Publication Date: 2013-07-10
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0032] In the prior art, because ATCF is not included in the signaling path of the session, when ATCF receives the handover request in step 113, it cannot associate with the corresponding session information, nor can it perform the handover operation, resulting in handover failure and affecting user experience

Method used

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  • Reverse-direction one-standby service continuity implementation method and device
  • Reverse-direction one-standby service continuity implementation method and device
  • Reverse-direction one-standby service continuity implementation method and device

Examples

Experimental program
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Effect test

Embodiment 1

[0065] Such as figure 2 , which shows an improved CS-to-PS handover process, which ensures that the subsequent CS-to-PS handover can be successfully implemented. Specifically, after learning the signaling anchor point information of the CS-to-PS handover allocated by the IMS network for the terminal, the eMSC uses the signaling path information of the current session of the terminal and the signaling anchor point of the CS-to-PS handover allocated by the IMS network for the terminal If the signaling anchor point for CS-to-PS handover assigned by the IMS network to the terminal is not included in the signaling path of the current session, then the eMSC updates the signaling path of the current session of the terminal to include the anchor point fixed point.

[0066] The signaling path information of the session includes: parameters in the Record-Route (record-route) header field; or parameters in the Route (routing) header field.

[0067] The background of this embodiment is...

Embodiment 2

[0112] like image 3 , which shows another improved CS-to-PS handover process, which ensures that the subsequent CS-to-PS handover can be successfully implemented. Specifically, after learning the signaling anchor point information of the CS-to-PS handover allocated by the IMS network for the terminal, the eMSC uses the signaling path information of the current session of the terminal and the signaling anchor point of the CS-to-PS handover allocated by the IMS network for the terminal If the signaling anchor point for CS-to-PS handover assigned by the IMS network to the terminal is not included in the signaling path information of the current session, the eMSC updates the signaling path of the current session of the terminal to include the anchor point. The difference between this embodiment and Embodiment 1 is that the established session signaling in this embodiment already includes an ATCF, and the eMSC updates it to the latest ATCF through the above operations.

[0113] ...

Embodiment 3

[0137] This embodiment introduces the device for implementing the method in the above embodiment, the device is located in the eMSC, such as Figure 4 As shown, it includes an information acquisition module, a judgment module and a processing module, wherein:

[0138] The information obtaining module is used to obtain the signaling anchor point information of the CS to PS handover assigned by the IMS network to the terminal;

[0139] The judging module is used to judge whether the signaling anchor point information is included in the signaling path information of the current session of the terminal;

[0140] The processing module is configured to update the signaling path of the current session of the terminal to include the signaling when the judging module judges that the signaling path information of the current session of the terminal does not contain the signaling anchor point information Anchor point information.

[0141] Specifically, the information obtaining module ...

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Abstract

The invention discloses a reverse-direction one-standby service continuity implementation method which enables a switching failure of conversation from a CS domain to a PS domain to be avoided. The reverse-direction one-standby service continuity implementation method comprises the following steps of enhancing a mobile switching center (eMSC), obtaining information of a signaling anchor point, switching from a circuit switching domain (CS) to a packet switching domain (PS), assigned by an IP multi-media subsystem (IMS) to a terminal, then judging if a signaling channel of a current conversation of the terminal does not include the signaling anchor point, updating the signaling channel of the current conversation of the terminal to enable the signaling channel to include the. A device comprises an information acquisition module, a judging module and a processing module. When a conversation of a user is not anchored to the signaling anchor point, switching from the CS to PS, offered by a specific IMS network, the reverse-direction one-standby service continuity implementation method and the device update the signaling channel of the conversation to enable the signaling channel to include the signaling anchor point, thereby ensuring successful execution of switching.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and a device for realizing reverse single-standby service continuity in an IP (Internet Protocol, IP for short) multimedia subsystem. Background technique [0002] IP Multimedia Core Network Subsystem (IMS) is an IP-based network architecture proposed by the 3rd Generation Partnership Project (3GPP), which builds an open and flexible business environment , supports multimedia applications, and can provide users with rich multimedia services. [0003] In the IMS service system, the control layer and the service layer are separated, and the control layer does not provide specific services, but only provides necessary functions such as triggering, routing, and charging to the service layer. The service triggering and control functions in the control layer are performed by a call session control function (Call Session Control Function, CSCF for short). The call session control fu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04W80/10
CPCH04W36/00226
Inventor 徐绍华郝振武
Owner ZTE CORP
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