Method and network entity for S-CSCF server allocation in an IMS based multimedia over IP network
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorRogier August Caspar Joseph Noldus
Life of this patent
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Abstract
Method and network entities for enabling server allocation in an IMS-based Multimedia over IP network. The method includes receiving by a S-CSCF server of the network subscriber registration data, transmitting, by the S-CSCF server, information representative of subscriber data to a P-CSCF server and/or to an HSS for storing the information representative of the subscriber data in a memory by the P-CSCF server and/or by the HSS, and transmitting, by the S-CSCF server, a S-CSCF group address to the P-CSCF server and/or to the HSS, respectively, said S-CSCF group address being representative of a group of S-CSCF servers, the S-CSCF server being included in said group of S-CSCF servers.
Claims20
A method for enabling server allocation in an Internet Protocol Multimedia Subsystem (IMS) based Multimedia over Internet Protocol (IP) network, the method comprising:
- receiving registration data, by a Serving Call Session Control Function (S-CSCF) server of the network, upon registration of a subscriber in said network;
- receiving subscription data, by the S-CSCF server, upon registration of said subscriber in said network, the registration data and the subscription data together forming subscriber data;
- transmitting, by the S-CSCF server, information representative of the subscriber data needed in the S-CSCF server for originating session establishment from the subscriber, to a Proxy Call Session Control Function (P-CSCF) server for storing the information representative of the subscriber data in a memory by the P-CSCF server;
- transmitting to a Home Subscriber Server (HSS), by the S-CSCF server, information representative of the subscriber data needed in the S-CSCF server for originating or terminating session establishment with the subscriber, for storing the information representative of the subscriber data in a memory by the HSS;
- transmitting an S-CSCF group address, by the S-CSCF server, to the P-CSCF server and to the HSS, respectively, said S-CSCF group address being representative of a group of S-CSCF servers, the S-CSCF server being included in said group of S-CSCF servers.
A network node for use in an Internet Protocol Multimedia Subsystem (IMS) based Multimedia over Internet Protocol (IP) network, the network node comprising:
- a receiving unit arranged for receiving registration data of said subscriber and receiving subscription data of said subscriber, upon registration of said subscriber with said network, the registration data and the subscription data together forming subscriber data;
- a transmitting unit arranged for transmitting, to a Proxy Call Session Control Function (P-CSCF), a node group address and information representative of the subscriber data needed in a S-CSCF server for originating session establishment from the subscriber and arranged for transmitting a node group address and information representative of the subscriber data needed in the S-CSCF server for originating or terminating session establishment with the subscriber, to a Home Subscriber Server (HSS), for storing the information representative of the subscriber data in a memory by the P-CSCF server and by the HSS, respectively, said node group address being representative of a group of network nodes that includes the network node.
A network node for use in an Internet Protocol Multimedia Subsystem (IMS) based Multimedia over Internet Protocol (IP) network, the network node comprising:
- a receiving unit arranged for receiving a multimedia service request sent by a user equipment (UE), the multimedia service request being a session initiation message for initiating a communication session or a non-session related multimedia service transaction, said multimedia service request including a Serving Call Session Control Function (S-CSCF) group address;
- a selection unit arranged for selecting a S-CSCF server on the basis of the S-CSCF group address;
- an inclusion unit arranged for including, in the multimedia service request, information representative of subscriber data;
- and
- a transmitting unit arranged for transmitting said multimedia service request, including the information representative of subscriber data, to the selected S-CSCF.
A network node for use in an Internet Protocol Multimedia Subsystem (IMS) based Multimedia over Internet Protocol (IP) network, the network node comprising:
- a receiving unit arranged for receiving a multimedia service request being a session initiation message;
- an interrogating unit arranged for interrogating a Home Subscriber Server (HSS) for obtaining a Serving Call Session Control Function (S-CSCF) group address, and for obtaining information representative of subscriber data of the subscriber;
- a selection unit arranged for selecting a S-CSCF on the basis of the S-CSCF group address;
- an inclusion unit arranged for including the obtained information representative of the subscriber data in the session initiation message;
- and
- a transmitting unit arranged for transmitting said session initiation message, including the information representative of the subscriber data, to the selected S-CSCF server.
Dependencies are inferred from the claim text.