North, South America also hope for LTE roaming

4G Americas industry group wants the same spectrum band used across the region

As the world's carriers call for agreement on enough LTE frequencies to make roaming a reality, the technology's backers in North and South America are pushing for a single band that data-hungry travelers could use across the Western Hemisphere.

To make roaming practical, enough countries have to agree to use the same band for LTE, or at least agree to embrace a small number of frequencies across enough countries that phone makers want to include them all. The spectrum bands assigned to LTE are currently too fragmented to make that work, carrier executives lamented at a Mobile World Congress keynote session on Monday morning. The launch of the iPhone 5 with a limited set of LTE bands helped to put the roaming problem in the spotlight.

There is some hope for LTE roaming among countries in North and South America, but the frequencies don't quite line up yet, according to Chris Pearson, president of 4G Americas, the regional trade group for LTE.

"Are we concerned about fragmentation? Yes. So what we're doing is working with all these governments and the U.S. to say how important it is," Pearson said in an interview Monday.

One of the bands being used for LTE in the U.S., the AWS (Advanced Wireless Services) band, is nearly the same as a band recommended by the Inter-American Telecommunication Commission. That group, abbreviated as Citel, is the telecommunication arm of the Organization of American States, so it holds some sway over governments' spectrum regulations around the region.

The AWS band is made up of two blocks, one from 1710MHz to 1755MHz and the other from 2110Mhz to 2155MHz. One is intended for downstream traffic to users and one for upstream traffic back to the network. Canada uses the same AWS band as the U.S.

The band recommended by the OAS covers the same blocks, but with 25MHz of additional spectrum on the top end of each: The lower block goes to 1780MHz and the upper block to 2180MHz.

LTE is growing rapidly in Latin America, with four networks online at the end of 2011 and 14 by the end of last year, said Erasmo Rojas, director of Latin America and the Caribbean for 4G Americas. There's fragmentation within Latin America itself, with five different bands represented among those LTE networks. But the band that nearly matches AWS has been widely adopted, with networks live in Mexico and Chile, auctions already completed in Peru and Paraguay, and the spectrum blocked off for later auctions in several other countries, Rojas said.

If those blocks lined up perfectly, device makers could build it in to all the LTE products they sold across the region, and carriers that used that band could offer LTE roaming around much of North and South America. But the extra 25MHz that the OAS supports is already called for in the U.S., Pearson said.

Parts of that extra bandwidth now belong to federal agencies, including the U.S. Department of Defense, but a 2012 law called for auctioning it for mobile services. Last week, 4G Americas urged the U.S. Federal Communications Commission to kick off that process by notifying the agencies it would auction off the spectrum. The auction would have to be finished by February 2015.

Stephen Lawson covers mobile, storage and networking technologies for The IDG News Service. Follow Stephen on Twitter at @sdlawsonmedia. Stephen's e-mail address is stephen_lawson@idg.com

Join the newsletter!

Error: Please check your email address.
Rocket to Success - Your 10 Tips for Smarter ERP System Selection

Tags 4G AmericasMWC4gtelecommunicationCarriersregulationmobilegovernment

Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Stephen Lawson

IDG News Service
Show Comments

Most Popular Reviews

Latest Articles

Resources

PCW Evaluation Team

Sarah Ieroianni

Brother QL-820NWB Professional Label Printer

The print quality also does not disappoint, it’s clear, bold, doesn’t smudge and the text is perfectly sized.

Ratchada Dunn

Sharp PN-40TC1 Huddle Board

The Huddle Board’s built in program; Sharp Touch Viewing software allows us to easily manipulate and edit our documents (jpegs and PDFs) all at the same time on the dashboard.

George Khoury

Sharp PN-40TC1 Huddle Board

The biggest perks for me would be that it comes with easy to use and comprehensive programs that make the collaboration process a whole lot more intuitive and organic

David Coyle

Brother PocketJet PJ-773 A4 Portable Thermal Printer

I rate the printer as a 5 out of 5 stars as it has been able to fit seamlessly into my busy and mobile lifestyle.

Kurt Hegetschweiler

Brother PocketJet PJ-773 A4 Portable Thermal Printer

It’s perfect for mobile workers. Just take it out — it’s small enough to sit anywhere — turn it on, load a sheet of paper, and start printing.

Matthew Stivala

HP OfficeJet 250 Mobile Printer

The HP OfficeJet 250 Mobile Printer is a great device that fits perfectly into my fast paced and mobile lifestyle. My first impression of the printer itself was how incredibly compact and sleek the device was.

Featured Content

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?