System and Method for Processing Packet Domain Signal
First Claim
1. A system for processing a packet domain service signal, the system comprising:
- an access gateway function;
an access gateway control function for implementing access management and call control for an access gateway function, and for enabling a user equipment of a Public Switched Telephone Network (PSTN) or a user equipment of Integrated Services Digital Network (ISDN) which accesses the access gateway control function through the access gateway function to access a Call Session Control Function (CSCF) in an Internet Protocol Multimedia Subsystem (IMS), wherein the CSCF is connected with a Media Gateway Control Function (MGCF) separate from the access gateway control function.
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Abstract
Embodiments of the present invention disclose a system and a method for processing a packet domain service signal, which enable a terminal that does not support an access control protocol of an Internet Protocol Multimedia Subsystem (IMS) to access the IMS and acquire the services in the IMS. An AGCF is added for shielding the differences of the users on the basis of the IMS defined in the 3GPP R5/R6 standard, specifically, a PSTN/ISDN user accesses an AGF first, accesses the IMS through an agent function of the AGCF, and the AGCF also manages and controls the AGF. Control of the PSTN/ISDN services may be implemented in the AGCF, or in an AS added to the IMS, or the control of basic services and supplementary services may be implemented in the AGCF while the control of value-added services may be implemented in the AS.
32 Citations
16 Claims
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1. A system for processing a packet domain service signal, the system comprising:
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an access gateway function; an access gateway control function for implementing access management and call control for an access gateway function, and for enabling a user equipment of a Public Switched Telephone Network (PSTN) or a user equipment of Integrated Services Digital Network (ISDN) which accesses the access gateway control function through the access gateway function to access a Call Session Control Function (CSCF) in an Internet Protocol Multimedia Subsystem (IMS), wherein the CSCF is connected with a Media Gateway Control Function (MGCF) separate from the access gateway control function. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An access gateway control function entity, comprising:
a module configured to acquire a private user identity and a public user identity according to an identity of an Access Gateway Function (AGF) and an identity of a user port when an outgoing call from a user reaches the module, the user being a Public Switched Telephone Network (PSTN) user or an Integrated Services Digital Network (ISDN) user, the module further configured to locate the identity of the AGF and the identity of the user port corresponding to the private user identity and the public user identity when an incoming call to the user reaches the module. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
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15. A method, comprising:
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receiving an outgoing call from a user by an access gateway control function, the user being a Public Switched Telephone Network (PSTN) user or an Integrated Services Digital Network (ISDN) user; and acquiring a private user identity and a public user identity according to an identity of an Access Gateway Function (AGF) and an identity of a user port, wherein the identity of the AGF and the identity of the user port correspond to the user, and the private user identity and the public user identity are for accessing an Internet Protocol Multimedia Subsystem (IMS) domain for the user.
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16. A method, comprising:
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receiving an incoming call to a user by an access gateway control function, the user being a Public Switched Telephone Network (PSTN) user or an Integrated Services Digital Network (ISDN) user, wherein the incoming call comprises a private user identity and a public user identity; and locating an identity of an Access Gateway Function (AGF) and an identity of a user port corresponding to the private user identity and the public user identity, wherein the identity of the AGF and the identity of the user port correspond to the user.
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Specification