Both Verizon Wireless and AT&T won enough spectrum licenses in the U.S. government's 700MHz auction concluded last month to roll out services a cut above what they offer today, though how fast they are for subscribers will be up to the carriers.

Both service providers will use the frequencies, at least in part, for LTE (Long-Term Evolution), an emerging mobile broadband technology sponsored by the organization that backs GSM (Global System for Mobile Communications). AT&T said the licenses would provide the foundation for rolling out HSPA+, a technology further along in its development, as well as LTE. The carriers released some details of their plans on Thursday after a quiet period imposed by the U.S. Federal Communications Commission (FCC) ended. Also on Thursday, Qualcomm said it will use eight new licenses to expand its FLO TV mobile broadcasting service.

The 700MHz spectrum, which TV stations are required to give up by mid-February 2009 when they drop analog broadcasts, can reach farther and penetrate walls better than current cellular frequencies. The auction brought in more than US$19 billion, with Verizon agreeing to pay more than $9 billion and AT&T about $6.6 billion. At the urging of Google and other parties, the FCC set requirements for use of some of the frequencies by any application or device. Google didn't win any licenses, but it hopes, along with Microsoft and others, to take advantage of "white spaces" between channels.

Verizon won a nearly nationwide block of spectrum that is 22MHz wide. That's broader than the block where AT&T said it won licenses covering the 200 largest markets in the U.S. But though AT&T's block is only 12MHz, the two carriers may be on roughly equal footing, according to IDC analyst Godfrey Chua. Anything over 10MHz is enough spectrum to take advantage of LTE, which can deliver higher speeds than current technologies and is also more efficient, he said. AT&T also recently acquired valuable 700MHz spectrum from Aloha Partners. Those licenses, for which AT&T said it would pay $2.5 billion, cover about two-thirds of the U.S. population.

As wireless technology continues its march through new standards, its speed can increase with each step. One of the latest, HSUPA (High-Speed Uplink Packet Access), will offer 600K bps (bits per second) to 1.4M bps downstream and between 500K bps and 800K bps upstream on average, according to AT&T. The carrier said it will finish building its HSUPA network using existing spectrum in the middle of this year.