Multimedia next generation network architecture for IP services delivery based on network and user policy
First Claim
1. A system for providing a first service which utilizes a first application layer (above Layer 3) service control protocol and a second service which utilizes a second application layer (above Layer 3) service control protocol, for subscribers'"'"' access terminals (ATs), the system comprising:
- an application layer comprising;
a first application server for providing the first service in accord with the first application layer service control protocol,a second application server for providing the second service in accord with the second application layer service control protocol, andone or more Call Session Control Functions (CSCFs) for providing application layer (above Layer
3) control of subscribers'"'"' packet communications for the first service through the system;
at least one link layer (Layer
2) network element, each link layer (Layer
2) network element for;
(1) providing two-way transport for packet communication for one or more of the subscribers'"'"' ATs for communications with the first application server for the first service in accord with the first application layer service control protocol, and(2) providing two-way transport for packet communication for one or more of the subscribers'"'"' ATs for communications with the second application server for the second service in accord with the second application layer service control protocol,wherein;
the first application layer service control protocol is session initiation protocol (SIP);
the second application layer service control protocol comprises one or more non-SIP protocols;
the first service which utilizes the first application layer (above Layer
3) service control protocol comprises one or more services based on SIP;
the second service which utilizes the second application layer (above Layer
3) service control protocol comprises one or more non-SIP services; and
the at least one link layer network element comprises a Base Transceiver Station (BTS) having packet switching capabilities, for providing the two-way transport for packet communication over an air link interface with the one or more of the ATs;
a network layer (Layer
3) comprising an Advanced Bearer Control Point (ABCP) for tracking network layer (Layer
3) delivery of communication for the subscribers'"'"' ATs involved in communications through the at least one link layer network element, for tracking availability of resources for providing communication through the network, and for determining allocations of the resources to the subscribers'"'"' ATs for the communications for the first and second services through the network in accordance with a network policy; and
a plurality of policy enforcement functions distributed across the network for controlling the subscribers'"'"' packet communications, so as to implement the determined resource allocations for the communications for the first and second services for the subscribers'"'"' ATs, wherein;
the policy enforcement functions include the one or more Call Session Control Functions (CSCFs) in the application layer above network layer three (Layer
3), andthe BTS of the at least one link layer network element is configured to implement a policy enforcement function by controlling routing of subscribers'"'"' communication packets so as to implement resource allocations determined by the ABCP, for the communications with the one or more of the ATs through the BTS.
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Accused Products
Abstract
The exemplary Multimedia Next Generation Network architecture disclosed herein covers the entire next generation system, e.g. for wireless communication services, including application, signaling and bearer functionalities. The architecture addresses unification of subscriber databases for both SIP services and non-SIP services in a Services Data Management Center (SDMC). A Security Center (SC) provides a central repository for all security related databases and functions. An Application Control Point (ACP) provides a single point of services control for all active SIP services for all subscribers via state information and services interaction management. Policy decisions are made at the packet layer, for example in an Advanced Bearer Control Point (ABCP) clustered with other functions to form a Bearer Services Control Point (BSCP). Policy enforcement is implemented at various nodes at the network or packet layer (L3) and above, e.g. including the BSCP and ACP.
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Citations
18 Claims
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1. A system for providing a first service which utilizes a first application layer (above Layer 3) service control protocol and a second service which utilizes a second application layer (above Layer 3) service control protocol, for subscribers'"'"' access terminals (ATs), the system comprising:
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an application layer comprising; a first application server for providing the first service in accord with the first application layer service control protocol, a second application server for providing the second service in accord with the second application layer service control protocol, and one or more Call Session Control Functions (CSCFs) for providing application layer (above Layer
3) control of subscribers'"'"' packet communications for the first service through the system;at least one link layer (Layer
2) network element, each link layer (Layer
2) network element for;(1) providing two-way transport for packet communication for one or more of the subscribers'"'"' ATs for communications with the first application server for the first service in accord with the first application layer service control protocol, and (2) providing two-way transport for packet communication for one or more of the subscribers'"'"' ATs for communications with the second application server for the second service in accord with the second application layer service control protocol, wherein; the first application layer service control protocol is session initiation protocol (SIP); the second application layer service control protocol comprises one or more non-SIP protocols; the first service which utilizes the first application layer (above Layer
3) service control protocol comprises one or more services based on SIP;the second service which utilizes the second application layer (above Layer
3) service control protocol comprises one or more non-SIP services; andthe at least one link layer network element comprises a Base Transceiver Station (BTS) having packet switching capabilities, for providing the two-way transport for packet communication over an air link interface with the one or more of the ATs; a network layer (Layer
3) comprising an Advanced Bearer Control Point (ABCP) for tracking network layer (Layer
3) delivery of communication for the subscribers'"'"' ATs involved in communications through the at least one link layer network element, for tracking availability of resources for providing communication through the network, and for determining allocations of the resources to the subscribers'"'"' ATs for the communications for the first and second services through the network in accordance with a network policy; anda plurality of policy enforcement functions distributed across the network for controlling the subscribers'"'"' packet communications, so as to implement the determined resource allocations for the communications for the first and second services for the subscribers'"'"' ATs, wherein; the policy enforcement functions include the one or more Call Session Control Functions (CSCFs) in the application layer above network layer three (Layer
3), andthe BTS of the at least one link layer network element is configured to implement a policy enforcement function by controlling routing of subscribers'"'"' communication packets so as to implement resource allocations determined by the ABCP, for the communications with the one or more of the ATs through the BTS. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A system for providing a first service which utilizes a first application layer (above Layer 3) service control protocol and a second service which utilizes a second application layer (above Layer 3) service control protocol, for subscribers'"'"' access terminals (ATs), the system comprising:
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an application layer comprising; a first application server for providing the first service in accord with the first application layer service control protocol, a second application server for providing the second service in accord with the second application layer service control protocol, and one or more Call Session Control Functions (CSCFs) for providing application layer (above Layer
3) control of subscribers'"'"' packet communications for the first service through the system;at least one link layer (Layer
2) network element, each link layer (Layer
2) network element for;(1) providing two-way transport for packet communication for one or more of the subscribers'"'"' ATs for communications with the at least one application server for the first service in accord with the first application layer service control protocol, and (2) providing two-way transport for packet communication for one or more of the subscribers'"'"' ATs for communications with the at least one application server for the second service in accord with the second application layer service control protocol, wherein; the first application layer service control protocol is session initiation protocol (SIP); the second application layer service control protocol comprises one or more non-SIP protocols; the first service which utilizes the first application layer (above Layer
3) service control protocol comprises one or more services based on SIP; andthe second service which utilizes the second application layer (above Layer
3) service control protocol comprises one or more non-SIP services;a network layer (Layer
3) comprising;(a) an Advanced Bearer Control Point (ABCP) for tracking network layer (Layer
3) delivery of communication for the subscribers'"'"' ATs involved in communications through the at least one link layer network element, for tracking availability of resources for providing communication through the network, and for determining allocations of the resources to the subscribers'"'"' ATs for the communications for the first and second services through the network in accordance with a network policy; and(b) an access gateway for routing subscribers'"'"' communication packets for the first and second services to and from the at least one link layer network element; and a plurality of policy enforcement functions distributed across the network for controlling the subscribers'"'"' packet communications at network layer three (Layer
3) or above, so as to implement the determined resource allocations for the communications for the first and second services for the subscribers'"'"' ATs, wherein;the policy enforcement functions include the one or more Call Session Control Functions (CSCFs) in the application layer above network layer three (Layer
3), andthe access gateway implements one of the policy enforcement functions at network layer three (Layer
3) by controlling the routing of subscribers'"'"' communication packets so as to implement resource allocations determined by the ABCP, for the communications for the one or more of the ATs through the at least one link layer network element.
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Specification