Is AT&T a wireless spectrum hog?

That's the big question that the Federal Communications Commission is grappling with as it scrutinizes the planned merger between AT&T and T-Mobile, which will transfer all of T-Mobile's spectrum to AT&T. The FCC is as well in the middle of considering AT&T's plan to buy spectrum in the lower part of the 700MHz band of spectrum from Qualcomm.

The struggling wireless operator T-Mobile USA

It's this desire for wireless "property" in other words driving AT&T's $39 billion acquisition of the struggling wireless operator T-Mobile USA. It's as well why AT&T plans to spend near $2 billion to acquire spectrum from Qualcomm, which the chipmaker used to build its failed mobile TV business called MediaFlo.

In its 381-page executive summary filed to the FCC last week explaining why this megamerger, which will eliminate one of four nationwide U.S. carriers, is in the public interest, AT&T claims that without additional spectrum from T-Mobile, the carrier will not be able to fulfill short term needs for wireless broadband.

The top 21 markets in the U.S.

AT&T's spectrum holdingsIn the top 21 markets in the U.S., AT&T has about 284 MHz more spectrum than its closest competitor, Verizon Wireless, according to data provided by Verizon. To put this in context, the FCC's National Broadband Report calls for an additional 500 MHz of spectrum to be made available for auction in the straightway decade to fulfill the needs of all wireless broadband providers. The FCC has proposed TV broadcasters to give up about 120 MHz in incentive auctions for wireless broadband within the at once five years.

In San Francisco, where it's been so then-publicized that AT&T has struggled to keep up with mobile data demand for its smartphones, particularly theiPhone, AT&T has about 30 MHz more 3G spectrum than Verizon Wireless. This 3G spectrum consists of spectrum in both the 850MHz band also as the PCS band of spectrum.

In other markets, the difference in spectrum holdings is not that great. For instance, in Washington, D.C., another major city where AT&T clients have complained about dropped calls and slow data speeds on their 3G wireless devices, AT&T only has about 10 MHz more of 3G spectrum than Verizon Wireless. In New York City, the second largest wireless market, where AT&T clients probably suffer the most from dropped calls and slow connections, AT&T has a deficit of about 10 MHz less than Verizon Wireless.

And this is just the spectrum that AT&T is already using to provide its 2G and 3G wireless services. The company hasn't even touched about 832 MHz of new wireless spectrum in the top 21 markets. This spectrum, which sits in the AWS and 700MHz bands, will be used to build AT&T's 4G LTE (Long Term Evolution, latest standard in the mobile network technology) network. The company is building the network and has plans to launch it commercially this summer with a target of reaching 70 million to 75 million potential subscribers by the end of this year.

Verizon Wireless, which is as well building a 4G LTE network using the AWS and 700 MHz spectrum, has about 918 MHz of this spectrum in the top 21 markets. Verizon launched its 4G wireless service in December, and it expects to serve 200 million people with the service this year. And by the end of 2013 it will be available to more than 285 million potential clients.

The 700MHz spectrum that AT&T

The 700MHz spectrum that AT&T and Verizon Wireless are using to build their LTE networks was the last bit of spectrum to become available. It had originally been allocated as analog TV spectrum. It was given back to the government afterwards TV broadcasters were forced to start transmitting signals digitally to make their spectrum use more efficient. It's considered prime real estate in terms of wireless spectrum because the low frequency means that it can send data longer distances and penetrate buildings more easily than spectrum at higher frequencies.

AT&T and Verizon currently own more than 90 percent of the licenses for this spectrum in major cities throughout the U.S. And AT&T is hoping to add to its 700MHz coffers by buying an additional 12 MHz of 700 MHz spectrum that Qualcomm is selling. Qualcomm had used the spectrum to build a nationwide mobile TV network called MediaFlo.

Spectrum is the 'lifeblood' of the wireless industry There's no question that more spectrum means that wireless operators can serve more clients with faster, richer Internet services. In a recent speech to strum up support for incentive spectrum auctions that would bring more wireless spectrum to the market, FCC Chairman Julius Genachowski called it the "lifeblood of the wireless ecosystem."

He as well said that "mobile broadband is being adopted faster than any computing platform in history, and could surpass all prior platforms in their potential to drive economic growth and possibility."

Indeed, smartphones have become more popular and consumers are using more data intensive applications, just as video streaming. Computing services are moving toward the "cloud," which is as well increasing demand for wireless broadband. And it's true that wireless networks are starting to feel the strain.

In its filing last week to the FCC, AT&T says its network has more smartphones on it than any other wireless provider with a total of 31 million smartphone subscribers. The company highlighted that smartphones consume "24 times as much data as traditional cell phones."

Result of the growth in smartphones

AT&T says that as a result of the growth in smartphones and other connected devices, such astablets, it has seen its data traffic grow 8,000 percent from 2007 to 2010. And that growth is expected to continue.

By 2015, AT&T estimates that mobile data traffic on its network will reach eight to ten times what it was in 2010. To put it another way, the company says that in just the first five to seven weeks of 2015, AT&T expects to carry all of the mobile traffic volume it carried while 2010.

"[The] spectrum crunch is hitting AT&T harder and sooner than the industry at large," it said in the filing. "And because AT&T plays a key role in supporting the cycle of mobile broadband technology in the United States, its capacity problems could have ripple effects throughout the broadband ecosystem."

The loaded network is likely what's caused AT&T clients to already experience dropped calls and slow data service in certain markets, just as New York City and San Francisco. AT&T has admitted that it has struggled to keep up with demand in these cities, as then as certain other markets.

The solution

The solution, according to AT&T is getting additional spectrum through its merger with T-Mobile USA. T-Mobile doesn't have any of the 700 MHz that AT&T may need to build its new LTE network, however it does have about 580 MHz of 3G spectrum in the top 21 markets, which AT&T could use to help alleviate some of its congestion on the existing 3G network in those markets. And it as well has 580 MHz of AWS spectrum in these top markets, which AT&T could in the end use to expand its 4G LTE build out. To tell the truth, AT&T claims that with the T-Mobile spectrum it could reach 97 percent of the population with its 4G network.

Competitors say hold on a secondAT&T's competitors say the carrier is facing the same issues they each face. And they argue that if AT&T is in point of fact struggling to keep up with demand, it may be because the company has not managed its resources so then or invested enough in its network.

Illustration

Look at Verizon Wireless as an illustration. Verizon, which has 104 million wireless connections on its network as of the end of the first quarter of 2011 compared with 97.5 million total wireless subscribers on AT&T's network, has on average about 10 MHz less spectrum in the top 21 U.S. markets than AT&T. Even so its service is often praised for its reliability.

"We have been building capacity into our network and investing in our network for several years," said Molly Feldman, vice president of business development for Verizon Wireless. "That's why we are in a strong position today."

Some critics question whether AT&T has invested enough in its network. Between 2008 and 2010, AT&T spent $21.1 billion to upgrade its wireless network, according to an FCC filing. While that same period, Verizon spent about $22.1 billion.

Martin Peers points out in a blog for The Wall Street Journal that although AT&T already knew that it had congestion problems on its network afterwards the introduction of the iPhone in 2007, it on the whole only increased wireless capital expenditures by 1 percent in 2009 compared with an increase in capital spending from Verizon Wireless by about 10 percent.

Meanwhile, Verizon executives say the company has enough spectrum until meanwhile 2015 to keep up with demands on its network. And like AT&T, Verizon now offers the data hungry Apple iPhone andiPad 2 along with several models of Google Android smartphones.

"The bottom line here is that this is about managing the network," Sprint's Krevor said. "I've got to give Verizon credit. They have a little bit less spectrum in some markets than AT&T and more subscribers than AT&T overall. And they don't have these same issues. They've done a better job of managing their network."

Spectrum use issue

"If AT&T has a spectrum use issue, it's one of its own making," he said. "They haven't managed their network effectively, so they think the solution is to simply acquire the nearest competitor."

Krevor said that every wireless operator would love to add more spectrum to its network to increase network capacity as it grows. Nevertheless he said that isn't always possible given the that spectrum is a finite resources. And instead of allowing AT&T to eliminate a competitor, he believes the market will force AT&T and other wireless operators to use their spectrum more efficiently.

"Competition forces you to improve and invest in the network to make the services as good as they can be," he said. "We didn't do a great job of integrating the Nextel spectrum into our network, and the market punished us. We responded by fixing those issues. Why shouldn't AT&T do the same?"

CNET News reporter since 2004

Marguerite Reardon has been a CNET News reporter since 2004, covering cell phone services, broadband, citywide Wi-Fi, the Net neutrality debate, as then as the ongoing consolidation of the phone companies.

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The telecom beat for more than a decade

Marguerite Reardon has been covering the telecom beat for more than a decade and knows more about wireless and IP networking than she cares to admit. She has been a senior writer for CNET News since 2003, covering all things wireless and broadband related from iPhone launches to major telephone company mergers to IPTV developments. She often appears as an expert on news networks, including CNBC, MSNBC, NPR, and the BBC. Maggie loves visiting CNET's headquarters in San Francisco, however she's an East Coaster deep down, living and working in Manhattan.

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