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A Policy Control and Charging Rules Function (PCRF) encompasses policy control decision and flow based charging control functionalities. The PCRF provides network control regarding the service data flow detection, gating, QoS and flow based charging,.
3GPP
This application conforms to 3GPP specifications for the interfaces, protocols and procedures of the OCS, PCRF, HSS and 3GPP AAA Server functions in the reference architecture.
Interfaces
Interface | Description |
|---|---|
GUI | Polymer Web Components |
REST | TM Forum Open APIs |
CLI | Erlang API |
RADIUS | AAA NAS Clients |
DIAMETER | 3GPP Ro/Gy/Wo,Gx,SWm/STa,SWx,S6a,S6b |
SNMP | Performance Management |
EAP-PWD | Android, Linux |
EAP-TTLS | Android, Linux, Apple, Windows |
EAP-AKA | Android, Linux, Apple |
EAP-AKA' | Android, Linux |
IPDR | Billing Record Files |
Graphical User Interface (GUI)
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Most aspects of provisioning and operations may be performed through integration using an HTTP RESTful interface. Specifically the TM Forum Open APIs are supported including: Product Catalog, Product Inventory, Prepay Balance, Service Inventory, Resource Inventory and Usage Management.
Erlang
All aspects of provisioning, operations and maintenance may be performed using the Erlang public API, either manually on the command line shell, or through custom Erlang module development.
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SigScale OCS supports the DIAMETER applications for the 3GPP interfaces of an OCS (Ro/Gy/Wo) (3GPP 32.299), PCRF (Gx), HSS (S6a) and AAA Server (STa/SWm/SWx,S6b), The OCS function supports Session Charging with Unit Reservation (SCUR) and Event Charging with Unit Reservation (ECUR) in CS, PS and IMS domains with both centralized and distributed unit determination. Non-3GPP access is supported with for ePDG with either internal HSS or proxy over SWm SWx to external HSS.
RADIUS
The OCS acts as an authentication, authorization and accounting (AAA) server for network access servers (NAS) using the RADIUS protocol such as wireless local area network (WLAN) access points (AP), broadband remote access server (BRAS) or broadband network gateway (BNG).
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The TTLS method uses Transport Layer Security (TLS) protocol that provides for client authentication of a server, as well as secure ciphersuite cipher-suite negotiation and key exchange. The secure connection may then be used to allow the server to authenticate the client using existing, widely deployed methods such as PAP which is used in OCS.
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The Internet Protocol (IP) Detail Record (IPDR) is an industry standard exchange format for usage records within the Internet Service Provider (ISP) ecosystem. OCS generates IPDR format usage logs which may be transfered transferred with SFTP/SCP for offline processing.
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