About the WiMAX Forum Application
Worldwide Interoperability for Microwave Access (WiMAX) is a broadband wireless access technology defined by IEEE 802.16. A WiMAX network consists of several logical components with defined reference points between the components. Any exposed reference points between the components are defined by WiMAX Forum standards.
Learn about:
WiMAX Forum Core
The diagram below shows the WiMAX core network components and the defined reference points (interfaces):
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R1 – MSS-BS interface
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R2 – MSS-CSN interface
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R3 – ASN Gateway-CSN interface
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R6 – BS-ASN Gateway interface
Protocols
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IPv4
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MIP (RFC 3344)
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Client MIP (same as MIP)
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Proxy MIP
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DHCP (RFC 2131)
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IPSec
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EAP and Double EAP (SIM, AKA, MD5, TLS, GTC, MSCHAPv2, TTLS)
Emulators
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Mobile Subscriber Station (MSS)
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Base Station (BS)
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Access Service Network Gateway (ASN-GW)
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AAA Client
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NAS
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Foreign Agent (FA)
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Connectivity Service Network (CSN)
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AAA Server
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Home Agent (HA)
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Network Host (NH)
WiMAX Forum Application with PCC
The diagram below shows the WiMAX network with PCC components and the defined reference points (interfaces):
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R1 – consists of the protocols and procedures between MS and ASN. R1 may also include additional protocols related to the management plane.
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R2 – consists of protocols and procedures between the MS and CSN associated with Authentication, Services Authorization and IP Host Configuration management. This reference point is logical and does not reflect a direct protocol interface between MS and CSN.
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R3 – consists of the set of Control Plane protocols between the ASN and CSN to support AAA, policy enforcement and mobility management capabilities. It also includes the Bearer Plane methods (e.g., tunneling) to transfer user data between the ASN and the CSN.
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PCC Based (Offline Charging) – CSN and Policy Distribution Function (PDF) interface
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PCC-R3-P – ASN Gateway and PDF interface.
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Rx/Tx – AF (Application Function) and PCRF (Policy and Charging Rules Function) interface
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Gx-Ty – PCRF and PDF interface
Protocols
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PCC-R3-P – DIAMETER or RADIUS
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PCRF Interface
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Ty RADIUS
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Ty Diameter
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Gx
Emulators
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Mobile Subscriber Station (MSS)
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Access Gateway (AGW)
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Policy and Charging Rules Function (PCRF)
Definitions
Base Station (BS)
The WiMAX Base Station (BS) is a logical entity that represents an instance of the WiMAX MAC and PHY. It supports scheduler functions for uplink and downlink resources. Supports connectivity of a single BS to more than one ASN-GW for load balancing or redundancy purposes.
ASN Gateway (ASN-GW)
ASN Gateway represents an aggregation of Control Plane functional entities that are either paired with a corresponding function in the ASN (e.g. BS instance), a resident function in the CSN or a function in another ASN. The ASN-GW also perform s Bearer Plane routing or bridging function.
The ASN-GW implementation includes redundancy and load-balancing among multiple ASN-GWs. For every MS, a BS is associated with exactly one default ASN GW. However, ASN-GW functions for every MS may be distributed among multiple ASN-GWs located in one or more ASN(s).