User Manual

Chapter 1 - System Description 4Motion Solution
4Motion 8 System Manual
An ASN is comprised of 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).
1.2.2.2 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
 WiMAX services such as location-based services, connectivity for peer-to-peer
services, provisioning, authorization and/or connectivity to IP multimedia
services, and facilities to support lawful intercept services such as those
compliant with Communications Assistance Law Enforcement Act (CALEA)
procedures
A CSN is comprised of network elements such as routers, proxy/servers, user
databases, and inter-working gateway devices.
1.2.2.3 Network Access Provider (NAP)
An NAP is a business entity that provides WiMAX radio access infrastructure to
one or more WiMAX network service providers (NSPs). A NAP implements this
infrastructure using one or more ASNs.
1.2.2.4 Network Service Provider (NSP)
An NSP is a business entity that provides IP connectivity and WiMAX services to
WiMAX subscribers compliant with the established service level agreement. The
NSP concept is an extension of the Internet service provider (ISP) concept,
providing network services beyond Internet access. To provide these services, an
NSP establishes contractual agreements with one or more NAPs. An NSP may also
establish roaming agreements with other NSPs and contractual agreements with