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WiFi/Cellular Convergence Standards to be Defined
Associate Editor
Convergence is not a new idea — but it may be the hottest topic around. How nice would it be to be able to have your mobile device switch seamlessly between your home WiFi network, your cellular network, and your WLAN connection at work. While technology is moving in that direction, there are certain issues that must be addressed first, regarding standards and compliance for such devices and the networks they switch between.
The Wi-Fi Alliance and CTIA — The Wireless Association have partnered in the interest of developing and promoting certification programs for converged WiFi/mobile handsets. Together, the two organizations will develop test programs for overlapping aspects of converged WiFi/mobile phones. The formal alliance is a natural extension of ongoing collaborative efforts between the two since early 2005.
Initially, efforts will be focused on RF (radio frequency) performance mapping in a mixed network environment. Later, the groups intend to delve into other technology challenges of convergence, such as call handover between cellular and WiFi networks, cross-radio signal sensitivity, and battery life.
Converged handsets have already hit the consumer and business markets from several leading manufacturers. The devices offer a rich, dynamic wireless broadband experience and improved in-building coverage. They also allow carriers to allocate spectrum efficiently and provide differentiated services to subscribers. It is a market that is in its infancy, but is set to grow swiftly in the coming years.
As it does mature, more and more converged handsets will become available and carriers will be forced to support converged solutions. Consequently, collaboration between wireless and cellular industries becomes increasingly important in order to keep pace with and resolve technology issues that widespread adoption of convergence technology will uncover.
This effort by the Wi-Fi Alliance and CTIA represents a strong step towards ensuring that obstacles can be overcome with relative ease and speed. Testing and certification standards will ensure that converged handsets and networks are universally interoperable, paving the way for speedy adoption, fewer technical difficulties, and further advancement — all of which are good for manufacturers, service providers, and customers alike.
Erik Linask is Associate Editor of INTERNET TELEPHONY. Most recently, he was Managing Editor at Global Custodian, an international securities services publication. To see more of his articles, please visit Erik Linask’s columnist page.
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