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Basic Architecture

Examples

August 2011v2

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Deploying a WiMAX Network

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Architecture Options Overview

Todays WiMAX deployments demand many different NetworkArchitectures

Traditional Mobile Networks utilise Mobile IP, and require an intelligent core

network

Enterprise networks may require end-to-end VLAN support (Layer 2)

Vertical applications may require local connectivity over Ethernet connections

Airspans SDR based Base Stations have been developed to

enable the flexibility to adapt to the required Network Architecture

This enables the Network Architecture to be designed independently from theair interface (16d / 16e)

16e today is becoming a popular choice for Wireless

Broadband not simply because of its mobility, but because of

the standardization and economies of scale. Interoperability is

real! The CPE price is dramatically lower compared to 16d.

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Network Architecture Two Basic Modes

Ethernet Bridge

Utilises Ethernet Convergence Sublayer on the Radio

Interface

Simplified Architecture, removing the need for ASNGW,

AAA & HA

AAA can be optionally included to provide EAP

Authentication

User Provisioning is provided by the EMS system

Local Bridging allows connectivity directly from the BS

Enables use of end-to-end VLANs

All IP

Utilises IP Convergence Sublayer on the Radio

Interface

WiMAX Forum NWG Architecture, consisting of

ASN-GW, AAA and optional HA

User Provisioning is provided by the AAA

Supports Handover and Mobile IP (optional)

Internet connectivity is provided via the core

network components

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Dual Architecture Deployments

A Hybrid mode allows the network to support both architectures using the sameair interface

This mode provides full flexibility, and enables individual services to be delivered over the most

appropriate architecture

This unique approach ensures the network is fully optimised for each service being offered

It is ideally suited to mixed SME/Business and Residential Networks

Local breakout of

SME/Business trafficprevents tromboning of

business to business traffic

and reduces backhaul

overheads.

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Fixed / Nomadic Network Architecture

Ethernet Bridge

Simple fixed Layer 2 architecture supported by

Airspans 16d & 16e products.

Utilises Ethernet Convergence Sublayer on the

Radio Interface

Simplified Architecture, removing the need for

ASNGW, AAA & HA

AAA can be optional ly included to provide EAP

Authent ication

User Provisioning is provided by the EMS

system

Local Bridging allows connectivity directly fromthe BS

Enables use of end-to-end VLANs

All IP

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Expanding to Support Mobility & Value Add features

A Hybrid mode allows the network to support both layer 2 and layer 3architectures using the same air interface

This mode provides full flexibility, and enables individual services to be delivered over the most

appropriate architecture

This unique approach ensures the network is fully optimised for each service being offered

It is ideally suited to mixed SME/Business, Residential & Mobile Networks

Supports Addit ional Value-Add

Services:

Wholesale Networks

Pre-paid Accounting

User Roaming

Mobility