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Tuesday, September 7, 2010

The future of wireless broadband

Wireless broadband aims to provide universal access (UA) and always broadband connection (ABC) services anytime, at any place, and across any heterogeneous network using any terminal.

Wireless broadband incorporates numerous technologies including multiple types of cellular technology, fixed and nomadic wireless access, wireless LAN, and even Bluetooth. Combined with All-IP technology, wireless broadband networks can provide broadband wireless access for subscribers in both low and high speed mobile environments. Wireless broadband can seamlessly transit between cellular systems, regional wireless networks, and radio/television/satellite communication systems.

Wireless broadband networks must optimally combine various technologies to enhance end user's QoE. In the future, wireless broadband is expected to provide a minimum single-user rate of 2×768 Kbps, or data and protocol rates of 1Mbps/m². It is clear that only a hybrid wireless network is adequate to deliver a mobile, economical broadband service, since single mode networking lacks the capability. The handover between heterogeneous networks (or vertical handover) in hybrid networking will shatter the restrictions on improving applications and performance that occurs in the handover between homogeneous networks (horizontal handover). By using a single terminal based on open wireless architecture (OWA), the end users can drive through network boundaries, realize UA and ABC, and then enjoy broadband services and applications anytime, at any location, and through any network.

Combining technologies invariably present unexpected difficulties, while the breakthrough of these difficulties can deliver surprising benefits. For example, the problems associated with Wi-Fi operation and inter-network roaming will be gradually solved, and this will greatly improve the popularization of Wi-Fi. The real end-to-end (E2E) application of wireless broadband will emerge after holistic technological maturity allows a single terminal to seamlessly roam among multiple networks of different standards. This will indeed represent a milestone feat, and is a colorful vision that motivates industry players.



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