Revolutionizing Mobile Broadband Connections
Mobile broadband is one of the fastest growing segments of the wireless market. Consumers and enterprises that adopted broadband and cellular phones over the last decade now expect their data, entertainment, and productivity applications to be available anytime and anywhere, at broadband speeds. Mobile broadband also enables operators to introduce completely new revenue-generating services.
Airvana is a leader in many of the technologies that have proved pivotal to the growth of the mobile broadband industry. Airvana pioneered the use of Internet Protocol (IP) for mobile broadband networks and has consistently been at the leading edge of delivering successive generations of 1xEV-DO technologies. Airvana is a proponent of “flat” architectures that simplify network deployments and pave the way for femtocells.
CDMA2000 EV-DO (Evolution Data Optimized) is a third-generation (3G) wide-area wireless technology that delivers high-speed mobile broadband information, communication and entertainment applications to millions of subscribers. EV-DO is commercially at Rev A - a revision of the standard that supports a peak reverse link (uplink) speed of 1.8 Mbps, Quality of Service (QoS) and low latency. These enhancements enable Rev A to be first 3G standard to support delay sensitive applications like Voice over IP (VoIP) with quality and capacity comparable to circuit-switched voice networks.
EV-DO Rev B extends EV-DO to multi-carrier operation by serving users simultaneously over multiple 1.25 MHz carriers. As a result, Rev B delivers a dramatically improved user experience as measured by user throughput and latency.
IP-RAN Network Architecture
Airvana's innovative IP-RAN architecture underpins all of Airvana's product offerings and brings Internet Protocol into the radio access network (RAN). Unlike previous architectures that used proprietary protocols and mandated a strict Radio Node to Radio Network controller hierarchy, Airvana's IP-RAN architecture uses IP to enable each RN to communicate with multiple RNCs. This one-to-many relationship between RNs and RNCs facilitates scaling, provides inherent reliability and minimizes the performance-degrading boundaries found in traditional architectures.