Why aren’t there more Monkeybrains?

Derek Slater is a Senior Policy Manager at Google

Monkeybrains is a wireless Internet access provider in San Francisco. Created in 1998, it’s not a big company—it’s a small business founded by two friendly engineers and run by a handful of people. Until recently, they only offered broadband speeds similar to old copper telephone networks. But they’ve started rolling out an ultrafast 300 Mbps service, buoyed by a successful crowdfunding campaign that raised nearly half a million dollars and the declining cost of antenna equipment.

In the U.S. broadband market, this sort of development is particularly intriguing. Today, nearly 75% of the country has no choice in broadband providers; at best, most consumers only have two options.

Even if the market of available service providers does not grow significantly, the market becoming more contestable—meaning an increased potential for new entrants—could be a significant development. That would make existing Internet service providers much more concerned about customer satisfaction—and that’s good for consumers.

More competition, especially at high speeds, isn’t inevitable though. Even as the technology matures and costs continue to come down, there are a number of barriers to entry that policymakers can help address, including:

  • Spectrum reform: ultrafast wireless services would be much easier to deploy if there was more spectrum available for both exclusive and shared use.
  • Access to video programming: most consumers expect to buy a TV package with their Internet access, but it is difficult for new entrants to license broadcast and cable TV channels at competitive prices.
  • Rights of way, siting for the equipment, and permitting processes: cities could make it easier to put up wireless equipment in public rights of way. This of course needs to be balanced against a range of factors—including a desire to not have a city cluttered with lots of wireless equipment.

Continua a leggere

The FCC’s Important Step to Power Wireless Broadband

Posted by Aparna Sridhar, Google Policy Counsel

Today, the Federal Communications Commission took an important step toward powering tomorrow’s wireless broadband.  The FCC adopted new rules that will designate some spectrum–resources that, under the FCC’s plan, would not in any event be auctioned for wireless carriers’ broadband services–for unlicensed devices and applications on a shared basis.  

Unlicensed uses of spectrum are an important complement to carriers’ mobile broadband services.  For example, the Wi-Fi networks in homes, businesses, and coffee shops allow users to take data off the wireless carriers’ licensed networks, which enables faster service and reduces congestion on cellular systems.  For smartphones and tablets in particular, Cisco has found that daily data consumption over Wi-Fi is four times that of cellular.  Offloading data from cellular networks to Wi-Fi has saved mobile network operators billions of dollars in network deployment costs.  Faster and cheaper access to online services drives usage of those services and thus demand for all forms of network access, creating a virtuous cycle of investment.  Access to new, lower-frequency TV band spectrum could accelerate this process and create more unlicensed service options, allowing better indoor coverage and service in rural and underserved areas.  

The FCC’s plan allows television broadcasters to sell their spectrum rights voluntarily so they can be purchased by mobile operators.  This will enable more efficient spectrum use and spur economic growth.

The FCC had a challenge in designing its plan for an auction of TV broadcast spectrum, and we’re pleased that it is supporting both licensed and unlicensed uses.  While the plan doesn’t provide as much unlicensed spectrum as we recommended, it should provide just enough unlicensed spectrum to attract investments in equipment and operations in the new band.  Google will do its part to ensure that our Spectrum Database supports sharing of the newly allocated spectrum.
While there’s still a lot of work ahead to get the final details of the auction right, we look forward to working with all stakeholders to build the next generation of wireless technologies and see them deployed across America.


Continua a leggere

New FCC Rules Will Boost Wireless Broadband

Posted by Milo Medin, Vice President of Access Services

Earlier today, the Federal Communications Commission adopted proposed rules that — if finalized later this year as planned — will implement a 2012 recommendation of the President’s Council of Advisors on Science and Technology (PCAST) and put spectrum to better use for broadband.  The proposed rules include some of the most forward-thinking spectrum policy anywhere in the world, and the FCC should be commended for moving aggressively towards implementation.

The key idea is that modern database technologies will allow commercial use of spectrum that historically has been dedicated to federal purposes, when and where the government doesn’t have immediate need for it.  Additionally, this new model allows flexible commercial use of the spectrum, where the database can mediate between protected operations like cellular LTE, and unprotected operations (which could be WiFi-type devices), without the government having to pick one or the other.  

The government will also benefit from having commercial devices in their bands.  Federal users will be able to buy lower-cost and higher-performance equipment based on consumer smartphone technologies.  It’s a win-win approach that lets government agencies continue to use their spectrum and take advantage of the commercial ecosystem, while also helping meet the growing demand for mobile broadband and device connectivity.  

Google has long advocated for more efficient use of spectrum through sharing technologies.  We operate an FCC-approved Spectrum Database that enables the use of vacant TV broadcast channels for wireless broadband.  And, we’ve built a prototype Spectrum Access System that is in use at our headquarters in Mountain View, California.  We believe spectrum sharing can unlock huge consumer benefits compared with traditional approaches of clearing existing users to make way for new ones, which can take as long as a decade to implement when it is possible at all.

It also is important that the FCC continue pushing hard to allow flexible use of spectrum in multiple bands. Different radio frequencies are suited to different applications.  For instance, the 600 MHz TV broadcast spectrum that Congress designated for voluntary recovery is especially useful for longer range services that provide excellent coverage, while higher frequencies (like the 3550 MHz band that’s at issue in today’s FCC rules) are ideal for quickly and affordably scaling up capacity in densely populated areas.  In these bands and others, federal policy should maximize the availability of spectrum that’s usable for broadband under a variety of business models.

Google welcomes the new FCC rules as a major step forward.  We’re committed to continue to work with the FCC and other federal agencies to make shared commercial access a reality, while ensuring federal operations are safeguarded.


Continua a leggere

White Spaces and Rural College Towns: the Beginning of a Beautiful Friendship

Michael Calabrese is Director of the Wireless Future Project at New America Foundation. Blair Levin is Executive Director of Gig.U

Federal Communications Commission Chairman Tom Wheeler began his tenure by correctly noting, “Unlicensed spectrum has been and must continue to be the catalyst for innovation.” With wireless traffic projected to increase 87 times in five years, we will increasingly depend on unlicensed spectrum to grow the mobile economy. Not only does unlicensed contain greater capacity—the capacity of Wi-Fi networks is 28 times greater than that of 3G and 4G networks—unlicensed enables huge savings. Wi-Fi off-load, projected to soon carry 60-80% of the traffic, will enable over 200 billion euros in annual savings for carriers in Europe alone.

One promising area for unlicensed services is unused television channels, known as “White Spaces.” White Spaces development, however, has been hampered by a chicken and egg problem. Without clarity about demand, manufacturers won’t devote the resources necessary to lower equipment costs; without costs coming down, demand will not be sufficient.

Several years ago we joined forces—Michael as an advocate for allocating White Spaces for unlicensed use, Blair from the direction of providing the high bandwidth networks rural college towns need and often don’t have—to create AIR.U, a project dedicated to using White Spaces to accelerate the deployment of next generation broadband networks in rural areas. AIR.U is a collaboration with the Declaration Networks Group and various Higher Education Groups, including the United Negro College Fund, the New England Board of Higher Education, the Corporation for Education Network Initiatives in California, the National Institute for Technology in Liberal Education, and Gig.U, as well as Google, Microsoft and the Appalachian Regional Commission.

We’ve made progress in addressing the chicken and egg issue, including the first AIR.U network deployment on the West Virginia University (WVU) campus, providing wireless access to the Internet at WVU’s Personal Rapid Transit platforms. Senator Rockefeller, Chairman of the Senate Commerce Committee, noted, “The lessons learned from this pilot project will be important as Congress continues to look for ways to expand broadband.”

Now it’s time for another step forward. Last month, Declaration Networks Group announced a “Quick Start” Network Program tailored for Higher Education communities to evaluate, design, and deploy high capacity broadband networks leveraging White Spaces. The program includes an assessment of expansion approaches and a sustainable path to increase the coverage and capacity of high-speed wireless connectivity to the community.

The program is offered exclusively to the AIR.U institutions. It includes a network with a base configuration supporting multiple Wi-Fi hotspots, and a user group for AIR.U Quick Start participants to collaborate in developing White Space technology, establish best practices, and share approaches for community expansion activities.

We believe this partnership between rural college communities and white spaces networks is the beginning of beautiful friendship, catalyzing more extensive deployments, and accelerating economic and educational development throughout the United States.


Continua a leggere

Measuring the spectrum across Europe

Petri Mähönen is the head of the Institute for Networked Systems at RWTH
Aachen University in Aachen, Germany. Janne Riihijärvi works as a senior
research scientist in the institute.

The debate over radio spectrum regulation has become one of the most intense and crucial telecommunications policy debates. Radio spectrum, in the sense of availability of radio frequencies for wireless data communications, is scarce. Wireless technologies have inherent limitations. Understanding the current radio spectrum use in different environments is important and harder than it might sound. First, as is now well understood, not all spectrum that is allocated is actually used. Second, spectrum measurements and realistic usage models are harder to make than people assume. Third, while regulatory databases and similar sources, such as white space databases, contain a lot of information how spectrum might be used, inevitable errors in propagation models significantly limit the value of this information. Finally, for unlicensed frequency bands and user-deployed networks, particularly emerging femtocells, there really is no substitute for in situ measurements.

The policy debate needs to be quantitative and data driven, and several research groups around the world have been conducting different types of measurement campaigns on spectrum use for quite some time. Measurement campaigns by the Shared Spectrum Company are early examples, while longer-running efforts include the Spectrum Observatory of the Illinois Institute of Technology, as well as our own efforts in this domain. However, most existing campaigns have focused on measurements at a single location. Such measurements are invaluable to gauge the promises of new technologies, but ultimately lack statistical coverage. They also cannot support regulatory enforcement, national security applications, or dynamic radio environment based optimization.

As part of the recently concluded European research project FARAMIR, we collaborated with industry and academic research groups to carry out extensive measurements on spectrum use across different urban and rural regions. During this work, we spent a week collecting measurements in different regions of London, UK, ranging from downtown shopping streets and tourist haunts to outer suburbs. Some 150 different locations were covered during the week, and at each location several hundreds of received power measurements were taken on different frequency bands. The first results were presented recently in the IEEE DySPAN 2012 conference in Seattle. Our measurements show that while the cellular bands are, as expected, practically fully utilized in urban environments, the usage of many other bands was significantly lower. Further, even the usage of cellular bands varied highly across the different measurement locations, falling to surprisingly low levels outside dense population centers. These results indicate that while availability of cellular spectrum in urban region is indeed limited, there seems to be little shortage of available frequencies in rural settings especially if low power transmitters are used. Overall the dynamics of spectrum use were observed to be very complicated as can be seen from the example below, illustrating spectrum use on the 900 MHz GSM downlink band at a location near Oxford Street in downtown London.

In addition to the results from our own analysis, we will gradually make the raw data from our measurements available to the research community. Last week we released the first data sets from the London measurement campaign, as well as our earlier comparison measurements of spectrum use across several different European cities. All of these data sets as well as documents describing results from our analysis can be obtained from the website of the FARAMIR project. In the future all the publicly available measurement data from the Institute for Networked systems will be made available through iNets Measurement Data Archive (currently under construction). We believe that sharing data from such measurement campaigns is key to developing global understanding on spectrum use, thereby providing solid foundation for making policy decisions for future spectrum use.


Continua a leggere