Method and apparatus for priority services management
First Claim
Patent Images
1. An apparatus comprising:
- at least one priority service functional element (PS-FE) configured to communicate with a corresponding resource access control function (RACF) and a corresponding call session control function (CSCF), the PS-FE for verifying a priority level of an intended communication, propagating corresponding resource availability information from the corresponding RACF to the corresponding CSCF, and storing resource allocation information, wherein;
in the event of a verified low priority communication having associated with it a resource insufficiency, the PS-FE is configured to communicate a resource unavailable message to the corresponding CSCF;
in the event of a verified high priority communication having associated with it a resource insufficiency, the PS-FE is configured to queue the verified high priority communication.
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Abstract
Apparatus and method for adapting a control plane of a communications network normally using a call session control function (CSCF) in communication with a resource access control function (RACF) by providing a priority service functional element (PS-FE) to handle call admission and priority services.
13 Citations
19 Claims
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1. An apparatus comprising:
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at least one priority service functional element (PS-FE) configured to communicate with a corresponding resource access control function (RACF) and a corresponding call session control function (CSCF), the PS-FE for verifying a priority level of an intended communication, propagating corresponding resource availability information from the corresponding RACF to the corresponding CSCF, and storing resource allocation information, wherein; in the event of a verified low priority communication having associated with it a resource insufficiency, the PS-FE is configured to communicate a resource unavailable message to the corresponding CSCF; in the event of a verified high priority communication having associated with it a resource insufficiency, the PS-FE is configured to queue the verified high priority communication. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for adapting a control plane of a communications network normally using a call session control function (CSCF) in communication with a resource access control function (RACF), comprising:
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providing a priority service functional element (PS-FE) between the RACF and the CSCF, the PS-FE including a processor to verify a priority level for each call, receive resource allocation information from the RACF, store a resource allocation for each call, and cause the CSCF to preferentially allocate resources to high priority calls, wherein; in the event of a verified low priority communication having associated with it a resource insufficiency, the PS-FE is configured to communicate a resource unavailable message to the corresponding CSCF; in the event of a verified high priority communication having associated with it a resource insufficiency, the PS-FE is configured to queue the verified high priority communication.
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18. A method comprising:
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verifying, using a processor, a priority level of an intended communication; receiving resource availability information from a resource access control function (RACF); propagating the resource availability information to a call session control function (CSCF); storing call admission information and resource allocation information; in the event of a verified low priority communication having associated with it a resource insufficiency, communicating a resource unavailable message to the CSCF; and in the event of a verified high priority communication having associated with it a resource insufficiency, queuing the verified high priority communication.
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19. A computer readable storage medium storing a program which, when executed, performs an operation of managing calls of different priority levels, the operation comprising:
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verifying a priority level of an intended communication; receiving resource availability information from a resource access control function (RACF); propagating resource availability information to a call session control function (CSCF); storing call admission information and resource allocation information; in the event of a verified low priority communication having associated with it a resource insufficiency, communicating a resource unavailable message to the CSCF; and in the event of a verified high priority communication having associated with it a resource insufficiency, queuing the verified high priority communication.
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Specification