Abstract
The embodiment of the invention discloses a method for realizing voice service continuity and the method includes the following steps: when the terminal moves from IP network to the neighboring CS network the terminal initiates VCC process and switches from the voice session based on IMS in the IP network to CS voice session based on eMSC and then switches from the CS voice session based on eMSC obtained by switching to CS voice session in the neighboring CS network. The embodiment of the invention also provides a method and terminal equipment for realizing IMS service continuity. The embodiment of the invention realizes that the continuity of voice session is held when the terminal moves between IP network and CS network and that the continuity of service is held when the terminal moves between IP network A and IP network B.
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Non 3GPP technology
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SUMMARY
ClaimChart-WO2009024075A1-STO
Patent number:WO2009024075A1
Claim Chart Type : SEP Claim Chart
Price: 200 €
Note:
The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
The information in grey was provided by the patent holder
The information in purple was extracted from the FrandAvenue
Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
Family member:related patents or applications that share a common priority or original filing.