IMS and method of multiple S-CSCF operation in support of single PUID
First Claim
1. A method for providing multimedia services to subscriber user equipment within an internet protocol multimedia subsystem network, comprising:
- configuring the internet protocol multimedia subsystem network to provide a single subscriber user equipment with a capability of fork registering with multiple serving-call session control functions, wherein the configuring includes setting a multiple serving-call session control function forking data field for the single subscriber user equipment maintained by a home subscriber server; and
wherein;
the single subscriber user equipment signals to fork register with a proxy call session control function;
the proxy call session control function signals to register with an interrogating call session control function;
the interrogating call session control function signals the home subscriber server,the home subscriber server responds by determining whether the single subscriber user equipment is already registered, and whether the single subscriber user equipment is enabled to fork register to multiple serving-call session control functions, and signals the interrogating call session control function with eligible serving-call session control function capabilities if the multiple serving-call session control function forking data field is set; and
the interrogating call session control function responds by choosing the multiple serving-call session control functions from eligible serving-call session control functions, and register signalling the chosen, eligible multiple serving-call session control functions.
1 Assignment
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Accused Products
Abstract
A method for providing multimedia services to subscriber user equipment (UE) within an IP multimedia subsystem network (IMS) may include configuring the IMS to enable a single UE to fork register and cooperate with multiple serving-call session control functions (S-CSCFs). After obtaining IP connectivity, the single UE signals to register with the IMS and the IMS determines whether the UE is configured to fork register with multiple S-CSCFs. If the UE is configured, the IMS determines which S-CSCFs are eligible for the UE registration and fork registers the UE to multiple S-CSCFs of the eligible S-CSCFs. Consequently, incoming and outgoing calls to/from the UE are routed by the IMS to any of the multiple registered S-CSCFs.
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Citations
18 Claims
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1. A method for providing multimedia services to subscriber user equipment within an internet protocol multimedia subsystem network, comprising:
configuring the internet protocol multimedia subsystem network to provide a single subscriber user equipment with a capability of fork registering with multiple serving-call session control functions, wherein the configuring includes setting a multiple serving-call session control function forking data field for the single subscriber user equipment maintained by a home subscriber server; and
wherein;the single subscriber user equipment signals to fork register with a proxy call session control function; the proxy call session control function signals to register with an interrogating call session control function; the interrogating call session control function signals the home subscriber server, the home subscriber server responds by determining whether the single subscriber user equipment is already registered, and whether the single subscriber user equipment is enabled to fork register to multiple serving-call session control functions, and signals the interrogating call session control function with eligible serving-call session control function capabilities if the multiple serving-call session control function forking data field is set; and the interrogating call session control function responds by choosing the multiple serving-call session control functions from eligible serving-call session control functions, and register signalling the chosen, eligible multiple serving-call session control functions. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A non-transitory computer readable medium storing computer program instructions for providing multimedia services to subscriber user equipment within an internet protocol multimedia subsystem network, which, when executed on a processor, cause the processor to perform operations comprising:
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configuring the internet protocol multimedia subsystem network to provide a single subscriber user equipment with a capability of fork registering with multiple serving-call session control functions, wherein;
after obtaining internet protocol connectivity, the single subscriber user equipment register signals the internet protocol multimedia subsystem network; and
wherein the internet protocol multimedia subsystem network fork registers the single subscriber user equipment to multiple serving-call session control functions; andsetting a multiple serving-call session control function forking data field and eligible serving-call session control functions maintained by a home subscriber server for the single subscriber user equipment;
wherein;the single subscriber user equipment signals to register with a proxy call session control function, the proxy call session control function register signalling an interrogating call session control function; the home subscriber server determines whether the single subscriber user equipment is already registered, and whether the single subscriber user equipment is enabled to fork register; the home subscriber server signals the interrogating call session control function with eligible serving-call session control function capabilities if the single subscriber user equipment is fork register enabled; and the interrogating call session control function selects the multiple serving-call session control functions from the eligible serving-call session control functions and register signals the chosen, eligible multiple serving-call session control functions. - View Dependent Claims (9, 10, 11, 12, 13)
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14. An internet protocol multimedia subsystem network for managing multimedia services that enables single subscriber user equipment to fork register with multiple servinq-call session control functions, the internet protocol multimedia subsystem network comprising:
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a single subscriber user equipment; a home subscriber server for managing operation of the single subscriber user equipment including a field indicating whether the single subscriber user equipment is enabled for multiple serving-call session control function operation; and multiple serving-call session control functions adapted to accept, in cooperation with the home subscriber server, fork registration from a single subscriber user equipment; wherein the internet protocol multimedia subsystem network is adapted to respond to incoming and outgoing calls to/from the single subscriber user equipment, upon the single subscriber user equipment fork registering with the multiple serving-call session control functions, by choosing one of the multiple registered serving-call session control functions in cooperation with the stored fork registration information associated with the single subscriber user equipment. - View Dependent Claims (15, 16, 17, 18)
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Specification