Mobile network having IP multimedia subsystem (IMS) entities and solutions for providing simplification of operations and compatibility between different IMS entities
First Claim
1. An apparatus, comprising:
- a receiver, at a proxy call state control function, configured to receive a session initiation protocol message with identification information from an user equipment; and
a processor, at the proxy call state control function, configured to use the identification information of the user equipment to determine one of a plurality of policy decision functions to contact,wherein the processor is configured to use the same one of the policy decision functions for all sessions of the user equipment, wherein all of the sessions comprise at least one packet data protocol context of the user equipment.
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Abstract
An IP Multimedia Subsystem (IMS) architecture for IP multimedia services is provided with a given user equipment (UE); a gateway support node (GGSN) configured to handle packet transmission to/from the given UE; and a proxy call session control function (P-CSCF) configured to serve as a first contact point of the UE and provide session management services, including establishing a packet data protocol (PDP) context for IMS related signaling, registration, and other procedures for IMS sessions. The P-CSCF is also configured to perform the following: storing identification information from the given UE during registration in memory; receiving a SIP (Session Initiation Protocol) message from the given UE; comparing identity in the SIP message with the identification information stored with a link to a Policy Decision Function (PDF); and using the same PDF for all operations of the given UE, when the identity in the SIP messages matches the identification information stored in memory.
20 Citations
14 Claims
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1. An apparatus, comprising:
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a receiver, at a proxy call state control function, configured to receive a session initiation protocol message with identification information from an user equipment; and a processor, at the proxy call state control function, configured to use the identification information of the user equipment to determine one of a plurality of policy decision functions to contact, wherein the processor is configured to use the same one of the policy decision functions for all sessions of the user equipment, wherein all of the sessions comprise at least one packet data protocol context of the user equipment. - View Dependent Claims (2, 3, 4)
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5. A system, comprising:
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an user equipment; a gateway support node configured to handle packet transmission to/from the user equipment; and a proxy call session control function configured to serve as a first contact point of the user equipment and provide session management services, including establishing a packet data protocol context for system related signaling, registration, and other procedures for system sessions, wherein said proxy call session control function is further configured to; receive a session initiation protocol message with identification information from the user equipment; use the identification information of the user equipment to determine one of a plurality of policy decision functions to contact; and use the same one of the policy decision functions for all sessions of the user equipment, wherein all of the sessions comprise at least one packet data protocol context of the user equipment.
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6. A method, comprising:
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receiving a signal initiated protocol message with identification information from an user equipment; using the identification information of the user equipment to determine one of a plurality of policy decision functions to contact; and using the same one of the policy decision functions for all sessions of the user equipment, wherein all of the sessions comprise at least one packet data protocol context of the user equipment. - View Dependent Claims (7, 8, 9)
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10. A non-transitory computer-readable storage medium encoded with instructions that, when executed on a computer, perform a process, the process comprising:
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receiving a signal initiated protocol message with identification information from an user equipment; using the identification information of the user equipment to determine one of a plurality of policy decision functions to contact; and using the same one of the policy decision functions for all sessions of the user equipment, wherein all of the sessions comprise at least one packet data protocol context of the user equipment. - View Dependent Claims (11, 12, 13)
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14. An apparatus, comprising:
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storing means for storing identification information received from an user equipment at registration in memory; receiving means for receiving a session initiation protocol message with identification information from the user equipment; and processing means for using the identification information of the user equipment to determine one of a plurality of policy decision functions to contact, wherein the processing means is for using the same one of the policy decision functions for all sessions of the user equipment, wherein all of the sessions comprise at least one packet data protocol context of the user equipment.
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Specification