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A method and system for realizing reverse single standby service continuity

A continuous and service technology, applied in connection management, wireless communication, electrical components, etc., can solve problems such as lack of integrity of PS service data

Inactive Publication Date: 2018-05-11
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0029] In the prior art, UE-1's PS service has been interrupted after step 111, and it is not resumed until after step 116, so that the user's PS service data lacks integrity

Method used

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  • A method and system for realizing reverse single standby service continuity
  • A method and system for realizing reverse single standby service continuity
  • A method and system for realizing reverse single standby service continuity

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Experimental program
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Embodiment 1

[0082] The scenario where this embodiment implements reverse single-standby service continuity is as follows: a call is established between UE-1 and UE-2, wherein UE-1 establishes the call through the CS domain of the 2 / 3G network, so the call media path UE-1 is connected to a CS media connection, and UE-1 also has an active PS service, so UE-1 has an active PS service bearer connection. When UE-1 moves and needs to change its access method to LTE or HSPA PS domain, the method for UE-1 to achieve reverse single-standby service continuity, such as Figure 4 shown, including the following steps:

[0083] Step 301: UE-1 establishes a session with UE-2 through the CS domain and the CS domain control entity of the original network, that is, the Mobile Switching Center (MSC);

[0084] Step 302: UE-1 sends a measurement report to the original network base station system serving it, and reports cell signal strength measurement information;

[0085] Step 303: The base station system ...

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Abstract

The invention discloses a method for realizing reverse single-standby service continuity. The original network base station system sends a circuit switching (CS) and packet switching (PS) combined switching request message to a mobile switching center (MSC); the MSC sends a message to the target The network control entity sends a CS to PS handover request, and the CS to PS handover request carries the PS domain information in the CS and PS combined handover request message; the target network control entity establishes a data forwarding tunnel according to the PS domain information; Before the device (UE) accesses the target network, the base station system of the original network forwards the received media data sent to the UE to the base station system of the target network through the data forwarding tunnel; For a system requiring service continuity, the scheme of the present invention can avoid interruption of PS domain services before the UE accesses the target network, so that the continuity of PS services can be guaranteed.

Description

technical field [0001] The invention relates to mobile communication technology, in particular to a method and system for realizing reverse single standby service continuity. Background technique [0002] IP Multimedia Subsystem (IMS, IP Multimedia Core Network Subsystem) is an IP-based network architecture proposed by the 3rd Generation Partnership Project (3GPP, 3rd Generation Partnership Project), which builds an open and flexible business environment, supports Multimedia applications 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. [0004] The service triggering and control functions in the control layer are performed by a call session control function (CSCF, Call Session Control Function). The call session control functi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/14H04W76/10
CPCH04W36/0022
Inventor 谢振华
Owner ZTE CORP