Method, apparatus and system for session adding
First Claim
1. A method for session adding during interworking between a Combining Circuit Switched and IP Multimedia System Services, referred to as CSI hereinafter, terminal and an IP Multimedia System, referred to as IMS hereinafter, terminal in a packet network, comprising:
- receiving, by an interworking control function entity, a session request forwarded by a home domain Service-Call Session Control Function entity, referred to as S-CSCF hereinafter, of a called terminal;
correlating and matching, by the interworking control function entity, an existing session after receiving the session request;
performing session adding operation according to a result of the correlating and matching.
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Accused Products
Abstract
A method for session adding during interworking between a CSI terminal and an IMS terminal in a packet network is disclosed, which includes the following steps: a calling terminal initiating a session request to a called terminal, and a home domain S-CSCF of the called terminal forwarding the session request to a interworking control function entity in the local domain which controls the interworking; the interworking control function entity correlating and matching the existing sessions after receiving the session request; and performing session adding operation according to a result of the correlating and matching. Further disclosed are an apparatus for session adding, and a packet network system for the session adding. In the embodiments of the invention, a second session initiated by the calling terminal may be terminated on the same terminal as the first session; or, the first session initiated by the calling terminal and the existing original first session may be merged into an IMS session on the Called Network side, and the IMS session may be terminated to a called terminal. By using the invention, a CSI terminal may initiate a multimedia session to an opposite IMS terminal.
17 Citations
30 Claims
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1. A method for session adding during interworking between a Combining Circuit Switched and IP Multimedia System Services, referred to as CSI hereinafter, terminal and an IP Multimedia System, referred to as IMS hereinafter, terminal in a packet network, comprising:
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receiving, by an interworking control function entity, a session request forwarded by a home domain Service-Call Session Control Function entity, referred to as S-CSCF hereinafter, of a called terminal; correlating and matching, by the interworking control function entity, an existing session after receiving the session request; performing session adding operation according to a result of the correlating and matching. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for session adding during interworking between a Combining Circuit Switched and IP Multimedia System Services, referred to as CSI hereinafter, terminal and an IP Multimedia System, referred to as IMS hereinafter, terminal in a packet network, comprising:
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receiving, by an interworking control function entity, a session request forwarded by a home domain Service-Call Session Control Function, referred to as S-CSCF hereinafter, of a calling terminal; correlating and matching, by the interworking control function entity, an existing session after receiving the session request; and performing session adding operation according to a result of the correlating and matching. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A packet network system for interworking between a Combining Circuit Switched and IP Multimedia System Services, referred to as CSI hereinafter, terminal and an IP Multimedia System, referred to as IMS hereinafter, terminal, comprising:
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a Service-Call Session Control Function entity, referred to as S-CSCF hereinafter, for forwarding a session request to a corresponding interworking control function entity after receiving the session request initiated by a calling terminal to a called terminal; the interworking control function entity for correlating and matching an existing session after receiving the session request, and performing a session adding operation according to a result of the correlating and matching. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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22. An apparatus for session adding during interworking between a Combining Circuit Switched and IP Multimedia System Services, referred to as CSI hereinafter, terminal and an IP Multimedia System, referred to as IMS hereinafter, terminal in a packet network, comprising:
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a matching module for correlating and matching existing sessions after receiving a session request; and a session adding operating module for performing session adding operation according to a result of the correlating and matching. - View Dependent Claims (23)
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24. A method for controlling interworking between a Combining Circuit Switched and IP Multimedia System Services, referred to as CSI hereinafter, terminal and an IP Multimedia System, referred to as IMS hereinafter, terminal in a packet network, comprising:
mapping, by a Media Gate Control Function entity, the CSI-related information in a Circuit Switched domain signaling to the CSI-related information in an IMS signaling. - View Dependent Claims (25, 26)
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27. An apparatus for session adding during interworking between a Combining Circuit Switched and IP Multimedia System Services, referred to as CSI hereinafter, terminal and an IP Multimedia System, referred to as IMS hereinafter, terminal in a packet network, comprising:
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a mapping module for mapping CSI-related information contained in a Circuit Switched domain signaling to CSI-related information contained in an IMS signaling; and a forwarding module for forwarding a session request to an interworking control function entity when receiving the session request sent from the mapping module. - View Dependent Claims (28, 29, 30)
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Specification