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WiMAX brightest star among many at CTIA

Wireless conference appeals to businesses, consumers, content and service providers, and presidents

By Jim Duffy, Network World, 03/29/07

ORLANDO -- Many themes carried this week’s CTIA Wireless 2007 conference but perhaps none were more prevalent than WiMAX.

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The show, which catered to all things mobile for consumers, businesses, operators, vendors and content providers, highlighted a variety of hot topics -- mobile TV, advertising, payments, handsets, enterprise services, operator technology and even the use of wireless by a couple of ex-presidents -- but WiMAX resoundingly reverberated through the cavernous hallways of the Orange County Convention Center.

“We do need that WiMAX coverage and we need it soon,” said Conrad Cross, CIO of the City of Orlando, referring to the city’s use of Sprint Nextel’s current generation Code Division Multiple Access (CDMA) EV-DO technology for public safety.

Cross may not have to wait long. At the show, Sprint Nextel announced expansion of its WiMAX coverage to 19 cities (Orlando was not one of them – yet) as well as more handset partners, and the commencement of an ecosystem program linking chipset and handset makers. Sprint Nextel also reiterated plans to hit 100 million points of presence with WiMAX by the end of next year.

Sprint Nextel also used the show to proclaim itself the “800-pound gorilla” of WiMAX due to the carrier’s partnerships with device makers and two-year head start on competitors in upgrading its wireless network to fourth-generation (4G) standards (see related story).

Verizon Wireless also is evaluating WiMAX as a 4G underpinning, but one executive said the carrier is content to take a “long, long, long” time before making a 4G decision. The operator needs a Frequency Division Duplex (FDD) technology with which to upgrade its EV-DO Revision 0 and Revision A (Rev. A) network, and WiMAX currently operates in Time Division Duplex (TDD) mode, said Kyle Malady, vice president of network technology development.

“I don’t have any TDD spectrum,” Malady said. “We’re just looking at the technology right now and we’re working with folks who are inside that ecosystem figuring out what we can do, what we can trial, when an FDD prototype might be available.”