WiMAX ASN Gateway
The introduction of Mobile WiMAX is creating new markets for mobile broadband wireless access. The Mobile WiMAX technologies provide IP-based application services, Quality of Service (QoS), robust security, user scalability and most importantly, seamless mobility handover.
The IEEE 802.16e standard specifics the over-the-air interface for Mobile WiMAX. While the equipment vendors are building 802.16e base stations, the network architecture that constructs the WiMAX Access Service Network (ASN) must be considered. ASN-GW is the key to achieve Mobility Handover requirements – packet loss minimized/eliminated, low handover latency, packet order preserved, security ensured and QoS maintained. Only standalone 802.16e base stations can not satisfy such requirements.
WiMAX Network Architecture defined by WiMAX Forum Network Work Group (NWG) consists of ASN (Access Service Network) and CSN (Connectivity Service Network). ASN contains Base stations and ASN-Gateway, with IP data path and R6 control path between them. ASN-GW interfaces with CSN via R3 for IP/Mobile IP based services including DHCP, Home Agent, AAA.
ASTRI ASN-GW is WiMAX Forum (NWG) standard complaint and is the key for equipment vendors with 802.16e base station products to offer an end-to-end Mobile WiMAX solution delivering seamless mobility. ASTRI ASN-GW can be customized to support multiple vendors and multiple models 802.16e base stations, disregard of their interfaces (R6 or extended R6) and profiles (Profile A or C). Cost effectively scaleable hardware allows low entry cost networks with capacity upgrade flexibility. The advanced radio resource management optimization delivers better coverage and capacity.
