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Method and system for switching users in IMS (IP Multimedia Subsystem) to a packet switch domain from a circuit switch domain

A technology of circuit switching domain and packet switching domain, applied in the field of packet switching domain

Active Publication Date: 2012-04-18
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Since the UE may still use the PS domain to provide other non-voice services while using the CS domain to provide voice services, there may still be non-voice service switching in the PS domain when reverse single-standby voice handover occurs

Method used

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  • Method and system for switching users in IMS (IP Multimedia Subsystem) to a packet switch domain from a circuit switch domain
  • Method and system for switching users in IMS (IP Multimedia Subsystem) to a packet switch domain from a circuit switch domain
  • Method and system for switching users in IMS (IP Multimedia Subsystem) to a packet switch domain from a circuit switch domain

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] figure 1 It is a flow chart of Embodiment 1 of a method for switching a user from a circuit-switched domain to a packet-switched domain in the IMS of the present invention, as shown in figure 1 As shown, the application scenario of this example is that UE-1 has established a call with UE-2 through the CS domain, and UE-1 may have other non-voice PS domain services. When UE-1 moves to the target network (PS network) All services need to be handed over to the PS domain of the target network. The method for switching the user from the circuit switched domain to the packet switched domain in the IMS in this example specifically includes the following steps:

[0046] Step 101, UE-1 sends a measurement report to the network serving it to report cell signal strength measurement information.

[0047] Step 102, the base station subsystem of the network serving UE-1 judges that the PS domain of the target network where the target cell is located is more suitable for serving UE-1...

Embodiment 2

[0072] figure 2 It is a flow chart of Embodiment 2 of the method for switching the user from the circuit switching domain to the packet switching domain in the IMS of the present invention, as shown in figure 2 As shown, the application scenario of this example is that UE-1 has established a call with UE-2 through the CS domain, and UE-1 may have other non-voice PS domain services. When UE-1 moves to the target network (PS network) All services need to be handed over to the PS domain of the target network. The method for switching the user from the circuit switched domain to the packet switched domain in the IMS in this example specifically includes the following steps:

[0073] In step 201, UE-1 sends a measurement report to the network serving it to report cell signal strength measurement information.

[0074] Step 202, the base station subsystem of the network serving UE-1 judges that the nearby PS target network is more suitable for serving UE-1 according to the signal ...

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Abstract

The invention discloses a method for switching users in an IMS (IP Multimedia Subsystem) to a packet switch domain from a circuit switch domain. A switching proxy (HO-Proxy) is arranged among networks and used for switching to a PS (Packet Switch) domain of a target network. The method comprises the following steps: a service network sends a switching request of the CS (Circuit Switch) domain business of UE (User Equipment) to the HO-Proxy when deciding to switch the UE with a circuit switch (CS) domain business to the PS domain of the target network, and the HO-Proxy requests a target network control entity to switch the CS domain business of the UE to the PS domain of the target network or switches the CS domain business of the UE to the PS domain of the target network. At the same time, the invention discloses a system for switching the users in the IMS to the packet switch domain from the circuit switch domain, which is used for implementing the method. The HO-Proxy is used for accurately reserving bearing resources of the PS for corresponding business of the UE while switching from the CS domain business to the PS network is conducted, and thereby accurate and timely switching is realized.

Description

technical field [0001] The present invention relates to a handover technology when a user equipment (UE, User Equipment) with a circuit switched (CS, Circuit Switch) domain service is switched from a non-packet switched (PS, Packet Switch) network to a PS network, and particularly relates to an IP multimedia subnet A method and system for switching a user from a circuit switching domain to a packet switching domain in a system (IMS, IP Multimedia Core Network Subsystem). Background technique [0002] IMS is an IP-based network architecture proposed by the 3rd Generation Partnership Project (3GPP, 3rd Generation Partnership Project), which builds an open and flexible service 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,...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04W80/10
CPCH04W36/14H04W36/0022H04W76/10H04W36/00226
Inventor 谢振华
Owner ZTE CORP
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