Results could change spectrum allocation system.
The Federal Communications Commission (FCC) is running tests in Seattle to determine the extent of spectrum interference between next generation Wi-Fi systems and cellular phone networks.
The FCC is planning an auction of 25 megahertz of spectrum in the 2155MHz to 2180MHz band but make a provision of the deal that the winner sets up a free wireless broadband service.
Mobile phone companies contend that such a system would interfere with their own services and degrade the signals they send. 3G provider AT&T has also objected to WiMax services on competition grounds.
T-Mobile, which has been particularly vocal in its objections to the plans, says its own tests have shown serious degradation to their networks and the FCC has agreed to carry out a set of tests to examine the issue.
The FCC will look at the potential of WiMax services to interfere with cellular signals and will also examine if shielding could fix any problems
“We are pleased the FCC has decided to travel to Seattle for interference testing. This is an important development. We are convinced the FCC will learn that its proposed rules are not viable because of the impact on existing wireless providers in the neighboring spectrum bands,” T-Mobile said in a written response to the FCC’s announcement.
“We hope we can then move forward toward a set of rules that will maximize the use of all affected spectrum bands for broadband and that enables alternative solutions.”