Google, Verizon Weigh In On White Space Test

The on-going corporate wrangling between Google and Verizon is heating up again as the Federal Communications Commission prepares to test technology that would make it possible to offer WiFi broadband Internet over unused TV channels known as white spaces.

Technically, the white spaces are the unused portions of spectrum between broadcast channels, used as a buffer to prevent interfering signals. Google, Microsoft, and some other major companies want to use them for WiFi signals. Verizon et alia (the telecommunications industry), broadcasters, and, interestingly, churches are not in favor opening up the white spaces.

The opposition claims use of the white spaces will interfere with network signals despite claims new technology will prevent it. Users of wireless microphones, like those used in church services, also fear interference despite mounting evidence to the contrary.

In previous FCC tests, the technology in question failed, but testers also failed to test a backup unit. At the time, Microsoft protested that testers didn't also test the backup provided. Since then, though, both Motorola and Philips have successfully demonstrated how the devices work for the FCC.

From the tone of today's
"Regardless of how these tests validate certain technical parameters of spectrum sensing," wrote Whitt, "those venues would be fully protected anyway under Google's March proposal. In particular, standalone use of a geolocation database with a look-up function would offer complete protection to digital TV and wireless microphone signals at major venues."

Google's plan recommended the use of geolocation databases, beacons, and/or safe harbors in conjunction.

Verizon, as usual, is on the other side of this, noting that white space technology hasn't past all tests yet, and therefore they still have concern that their own wireless signals will be in jeopardy. Even if not, Verizon's