Installation Manual

Chapter 1 - System Description System Overview
BreezeMAX Extreme 13 System Manual
1.2.5.1 Access Service Network (ASN)
An ASN is defined as a complete set of network functions needed to provide radio
access to a WiMAX subscriber. The ASN provides the following mandatory
functions:
 WiMAX Layer-2 (L2) connectivity with WiMAX mobile station (MS)
 Transfer of AAA messages to the WiMAX subscriber's home network service
provider (H-NSP) for authentication, authorization and session accounting for
subscriber sessions
 Network discovery and selection of the WiMAX subscriber's preferred NSP
 Relay functionality for establishing Layer-3 (L3) connectivity with a WiMAX MS
(i.e. IP address allocation)
 Radio resource management
 ASN-CSN tunneling
An ASN comprises network elements such as one or more base transceiver
stations and one or more ASN gateways. An ASN may be shared by more than one
connectivity service network (CSN).
1.2.5.2 Connectivity Service Network (CSN)
A CSN is defined as a set of network functions that provide IP connectivity
services to WiMAX subscribers. A CSN may offer the following functions:
 MS IP address and endpoint parameter allocation for user sessions
 Internet access
 AAA proxy or server
 Policy and admission control based on user subscription profiles
 ASN-CSN tunneling support
 WiMAX subscriber billing and inter-operator settlement