Wimax is fully ip network which gives the last mile users to access internet at high speed. Wimax architecture consists of the following components:-
1. MS(Mobile Subscriber) or SS(Subscriber Station)
2. ASN (Access Service Network)
3. CSN (Core or connectivity Service Network)
MS or SS are used by the users to connect the VPN or Internet by using air interface. All the MS or SS connects to the BS(Base Station) and BS further connects to the ASN-Gty.
ASN network consists of Base Stations and ASN-Gty(Access Service Network Gateway). BS are responsible for providing air interface to mobile subscribers to connect VPN or Internet. Apart from this BS manages the subscribers QOS policy enforcements, traffic classification, session managements and handovers during roaming.
ASN-Gty works as LNS(Layer 2 Network Server) server which aggregates all the layer 2 traffic and provides the connectivity to internet. A part from this it manages QOS profiles, keys management, radius client, mobility tunnels with base stations for roaming users. Allocates profile as Simple and Mobile ip communication for SS or MS and becomes foreign agent for them.
CNS consists of AAA, HA, VHR, OSS. It connects to the internet gateway to route the traffic in case of data network. If MS looks for voip calls in that case it also provides the connectivity to PSTN network.
1. MS(Mobile Subscriber) or SS(Subscriber Station)
2. ASN (Access Service Network)
3. CSN (Core or connectivity Service Network)
MS or SS are used by the users to connect the VPN or Internet by using air interface. All the MS or SS connects to the BS(Base Station) and BS further connects to the ASN-Gty.
ASN network consists of Base Stations and ASN-Gty(Access Service Network Gateway). BS are responsible for providing air interface to mobile subscribers to connect VPN or Internet. Apart from this BS manages the subscribers QOS policy enforcements, traffic classification, session managements and handovers during roaming.
ASN-Gty works as LNS(Layer 2 Network Server) server which aggregates all the layer 2 traffic and provides the connectivity to internet. A part from this it manages QOS profiles, keys management, radius client, mobility tunnels with base stations for roaming users. Allocates profile as Simple and Mobile ip communication for SS or MS and becomes foreign agent for them.
CNS consists of AAA, HA, VHR, OSS. It connects to the internet gateway to route the traffic in case of data network. If MS looks for voip calls in that case it also provides the connectivity to PSTN network.
"The WiMAX Forum Global Operator Summit was created to specifically address overcoming both business and consumer perceptions that data roaming is expensive, and to explore ways to help operators grow revenue," said Ron Resnick, president and chairman of the WiMAX Forum. "WiMAX has an established ecosystem with nearly 600 deployments around the world. The opportunity for operators to offer their customers roaming is there, and it is an excellent way for operators to add another viable revenue stream and earn returns on their 4G network investments."
