MICROWAVE
 RADIOS

 SYSTEM
 ENGINEERING

 » 

 APPLICATIONS

 CASE STUDIES

 WHITE PAPERS

 DOWNLOADS

Application overview
Telecommunications carriers deploy point-to-point digital microwave radios for inter-exchange linking and backhaul. The radios enable highly efficient connection between central and remote exchanges or to roadside cabinets to create new points-of-presence. The wireless backhaul of Internet, voice and data traffic enables carriers to swiftly extend network coverage and provides crucial capacity for growing demand and emerging broadband wireline technologies including ADSL. The systems are typically deployed where the speed or costs of deployment for wired, fiber, or satellite communications are not commercially feasible or viable due to distance, difficult terrain or harsh environments.

Applications:
» Carrier Networks
Cellular and BWA Networks
Mobile Radio Networks
DSL Extension
Private Networks
Rural Broadband Access
Utility Networks

Commercial perspectives
This microwave radio solution enable carriers to [1] add broadband access capability and evolve their networks to IP as subscriber demand increases [2] cost-effectively manage expanding backhaul and distribution demands [3] swiftly deploy versatile new points-of-presence and inter-exchange connections while reusing existing infrastructure.

Aprisa™ digital microwave radios
The 4RF Communications Aprisa digital microwave radios enable connectivity between two fixed points and the transmission of Internet, voice and data traffic over distances up to 100 kilometres. They transport a wide-range of broadband enabled services including Internet, VPN and LAN interconnect, VoIP, video conferencing, web-hosting and E-business applications; and voice services for telephone and fax.

Aprisavantage
The Aprisa radio confers two key benefits to telecommunications companies and network operators seeking to expand backhaul capability or create new points-of-presence.

Superior performance Sub 3 GHz licensed frequency bands enable extremely reliable transmission over long distances and difficult terrain, particularly over water and partly obscured paths. These regulated bands permit exclusive frequency assignment guaranteeing carrier-class performance and minimizing interference. The RF design integrates high-performance digital processing techniques including FEC (Forward Error Correction), interleaving and advanced radio equalization to minimize transmission degradation from interference and atmospheric effects. Sophisticated modulation techniques in the radio platform enable highly efficient transmission in narrow channels. This enables the optimisation of available spectrum where that resource may be limited and/ or expensive.

Greater flexibility The design of the Aprisa enables swift network integration and redeployment. The radio features an in-built multiplexer managing Internet, voice and data traffic. This multi-use platform enables the delivery of bundled Internet and voice services. It creates new revenue opportunities and reduces costs by eliminating the requirement for external equipment. Advanced plug-in, customer-configurable interface modules enable networks to evolve from circuit-switched E1/T1 transport to packet-switched IP/Ethernet with the ability to support both standards concurrently.

BACK TO TOP