Device for controlling access of subscriber terminals of a CS domain to services of an IMS communication network
First Claim
1. A Device for controlling access of a terminal, connected to a Circuit Switched (CS) domain of a mobile communication network comprising at least one Mobile Switching Center (MSC), the device to control subscribed services of an IP Multimedia Subsystem (IMS) communication network including a Serving Call Session Control Function (S-CSCF) module, said device coupled to said MSC and to said IMS network, comprising:
- a Gateway Mobile Switching Center (GMSC) module configured to manage setting up of a call to the terminal;
a Media Gateway Controller Function (MGCF) module configured to convert messages from the CS domain into messages according to an IP Multimedia Subsystem (IMS) signaling protocol intended for the S-CSCF module;
an Interrogating Call Session Control Function (I-CSCF) module configured to initiate subscriber registration with the S-CSCF module, anda Proxy Call Session Control Function (P-CSCF) module emulator and a user agent (UA1) configured to cooperate with the terminal to instruct said I-CSCF module to initiate the subscriber registration with the S-CSCF module, the P-CSCF module being further configured to send a call request via said MGCF module to the S-CSCF module if the subscriber attempts to set-up a call via the terminal, and to instruct said GMSC module, via said MGCF module, to manage the call set-up on the CS domain side if the terminal receives a request to set-up the call from the S-CSCF module.
3 Assignments
0 Petitions
Accused Products
Abstract
The invention concerns a device (D) dedicated to controlling access of a terminal (UE), connected to a CS domain of a mobile network comprising a MSC center (VMSC) running CS communications, to a IMS network services of which its user is a subscriber. Said device (D) comprises: i) a GMSC module managing setup of communications to a terminal (UE) connected to the CS domain, ii) a MGCF module converting messages from the CS domain in accordance with a ISUP protocol into messages in accordance with a SIP protocol addressed to a S-CSCF module and inversely, iii) an I-CSCF initiating registration of terminals connected to the CS domain, with a S-CSCF module, and iv) a P-CSCF emulator (P1) and a user agent (UA1) responsible a) for co-operating together on behalf of the terminal (UE) to instruct an I-CSCF module to initiate the registration of a terminal with a S-CSCF module of the IMS network of which its user is a subscriber, b) when the user attempts via the terminal (UE) to set up a call, for sending said call, via the MGCF module, to the S-CSCF module with which it is registered, and c) upon reception of a request for setting up communication to the terminal, from the S-CSCF module of the TMS network of which its user is a subscriber, for instructing the GMSC module, via the MGCF module, to manage said setting up on the CS domain side.
16 Citations
19 Claims
-
1. A Device for controlling access of a terminal, connected to a Circuit Switched (CS) domain of a mobile communication network comprising at least one Mobile Switching Center (MSC), the device to control subscribed services of an IP Multimedia Subsystem (IMS) communication network including a Serving Call Session Control Function (S-CSCF) module, said device coupled to said MSC and to said IMS network, comprising:
-
a Gateway Mobile Switching Center (GMSC) module configured to manage setting up of a call to the terminal; a Media Gateway Controller Function (MGCF) module configured to convert messages from the CS domain into messages according to an IP Multimedia Subsystem (IMS) signaling protocol intended for the S-CSCF module; an Interrogating Call Session Control Function (I-CSCF) module configured to initiate subscriber registration with the S-CSCF module, and a Proxy Call Session Control Function (P-CSCF) module emulator and a user agent (UA1) configured to cooperate with the terminal to instruct said I-CSCF module to initiate the subscriber registration with the S-CSCF module, the P-CSCF module being further configured to send a call request via said MGCF module to the S-CSCF module if the subscriber attempts to set-up a call via the terminal, and to instruct said GMSC module, via said MGCF module, to manage the call set-up on the CS domain side if the terminal receives a request to set-up the call from the S-CSCF module. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
-
Specification