& cplSiteName &

ITU Approves New 4G Specs

Michelle Donegan
LR Mobile News Analysis
Michelle Donegan
7/23/2008
50%
50%

The International Telecommunication Union, Radiocommunication Sector (ITU-R) has re-ignited the technology tussle between so-called 4G technologies Long-Term Evolution (LTE) and WiMax by approving the technical requirements for next-generation mobile broadband technology, IMT-Advanced.

With the general specifications now set for IMT-Advanced -– which is ITU-speak for 4G -– candidate technologies can, from October, be submitted to the ITU.

And, as Unstrung has reported, the WiMax camp at the Institute of Electrical and Electronics Engineers Inc. (IEEE) and the LTE camp at the 3rd Generation Partnership Project (3GPP) are already prepping their candidates -- 802.16m and LTE-Advanced, respectively -- for the next mobile broadband showdown. (See Wireless Camps Prep Fresh 4G Battle, 3GPP Studies LTE Are Advanced, and Faster WiMax on the Way.)

The technical criteria were approved at a meeting held in Dubai at the end of June. While the ITU-R declined to provide any details of the agreed technical requirements to Unstrung, those details are expected to be published on the IMT-Advanced Website at the end of this week.

Some guidelines are available from industry sources, though. According to Erik Ekudden, vice president and head of standardization and industry initiatives at Ericsson AB (Nasdaq: ERIC), who has been involved in setting the criteria, the requirements include average downlink speeds of 100 Mbit/s in the wide area network, and up to 1 Gbit/s for local access or low mobility scenarios.

Another key criterion for IMT-Advanced is low latency. Specifically, the parameters include less than 10 millisecond roundtrip delay and less than 100 milliseconds to set up a new session.

And IMT-Advanced calls for very wide channel widths. The technology needs 40MHz and preferably up to 100MHz channel allocations, according to Ekudden.

Requirements of that kind are completely new territory for the cellular industry. Never before have such large spectrum allocations been needed. And that means spectrum availability will be a big challenge for IMT-Advanced technologies.

"Regulators have to set aside more continuous spectrum to launch these systems," says Ekudden. "It's up to governments and regulators around the world to allocate this spectrum. The industry challenge is to ensure the new spectrum is made available for IMT-Advanced."

Will WiMax and LTE get together in IMT-Advanced?
IMT-Advanced poses an opportunity for WiMax and LTE to get together. But opinions seem to vary about the likelihood of the two camps burying the hatchet and blending their rival technologies, which actually have much in common. (See WiMax's Long-Term Evolution.)

While Unstrung has reported that the IEEE and 3GPP have considered the prospect of working more closely on IMT-Advanced, others believe the two technologies are set on their own next-generation paths and cannot be combined simply.

"We don't see any trend for putting everything into one bucket, stirring it around and seeing what comes out," says Ekudden. "It's not so easy to technically harmonize. There is strong support for [each] technology as such."

"A lot of good will come out of this big process [for IMT-Advanced]," he adds. "The technical basis for different technology tracks is already established and they are not going to change."

The ITU-R will start accepting proposals for candidate technologies at the next IMT-Advanced meeting in October. At that time, it's understood the ITU-R will also agree on the evaluation criteria for the technologies.

IMT-Advanced technologies will take the cellular systems through the next 10 to 15 years. The ITU-R is expected to complete its recommendation for the IMT-Advanced radio interface technology in early 2011.

— Michelle Donegan, European Editor, Unstrung

(9)  | 
Comment  | 
Print  | 
Newest First  |  Oldest First  |  Threaded View        ADD A COMMENT
lrmobile_kumaramitabh
50%
50%
lrmobile_kumaramitabh,
User Rank: Light Beer
12/5/2012 | 3:36:07 PM
re: ITU Approves New 4G Specs
The ITU recommendations on the IEEE 802.16m or LTE now place this technology in the same position as the WiMAX 802.16e was in 2005.
It will not be before end of 2008, i.e a full three years to have the chipsets developed, technologies tested and spectrum bands finalized.

Een though many vendors claim having demonstrated 4G systems, the true time line begins now. Considering the spectrum requirements, it can be quite a challange.

The only advantage of 4G is that it would be a 3GPP technology and provide an upgrade path from existing mobile 3G+ networks, while using the Mobile WiMAX needs the IMS technologies.

http://www.wimaxbook.net
wap545
50%
50%
wap545,
User Rank: Light Beer
12/5/2012 | 3:36:06 PM
re: ITU Approves New 4G Specs
"..IMT-Advanced calls for very wide channel widths. The technology needs 40MHz and preferably up to 100MHz channel allocations,.."

Did I read this right??
WHat can Verizon Wireless do with its 20Mhz of 700Mhz spectrum (recent C Block win) if they will need minimum of 40Mhz to obtain an basic LTE 4G Network.
What am I missing here??

Jim
mvakulenko1
50%
50%
mvakulenko1,
User Rank: Light Beer
12/5/2012 | 3:36:04 PM
re: ITU Approves New 4G Specs
Another requirement that was not mentioned in the article is bandwidth scalability, i.e. ability to use frequency channels of varying width - From, say, 1.25 MHz up to 40 MHz. The data rates will be changing accordingly.

LTE currently scales between 1.25 and 20 MHz and is a good fit for existing spectrum allocations.
lite.reader
50%
50%
lite.reader,
User Rank: Light Beer
12/5/2012 | 3:36:04 PM
re: ITU Approves New 4G Specs
If 802.16m and LTE-"Advanced" are candidates for "4"G then what would generation would we classify 802.16e and LTE-"Standard"?

Are they just called "pre-4G" or "3G+" or something of that sort?
Michelle Donegan
50%
50%
Michelle Donegan,
User Rank: Light Beer
12/5/2012 | 3:36:04 PM
re: ITU Approves New 4G Specs
Hi Jim,
The article is about the technologies that come after LTE way down the road. The ITU calls it IMT-Advanced. The two technologies that have emerged as candidates are 802.16m and LTE-Advanced, which are the next generations of today's mobile WiMax and LTE.
It's confusing because the industry has got a bit ahead of itself by referring to WiMax and LTE as 4G, when actually the ITU's IMT-Advanced is technically the real 4G.

Hopefully that makes sense! Thanks for the comment.

Michelle
IPobserver
50%
50%
IPobserver,
User Rank: Light Beer
12/5/2012 | 3:36:03 PM
re: ITU Approves New 4G Specs
DoCoMo has been calling LTE "Super 3G."

A while back, quite a bit of the industry tried to hold-off using the Gǣ4GGǥ term because of the ITU Advanced process, and because 3G was only just getting into its stride.

4G is widely used in the U.S., especially by Sprint and VZW for mobile WiMax and LTE, and so thatGs become standard usage. I think thatGs fair enough G it is a shift to a new generation of radio technology.

Interestingly thou, it doesnGt necessarily follow that there will be a huge difference in end-user experience between 3G (HSPA or EVDO) and 4G (LTE or WiMax).
wap545
50%
50%
wap545,
User Rank: Light Beer
12/5/2012 | 3:35:49 PM
re: ITU Approves New 4G Specs
I still have not got the answer to my question.
If I only have 12 or 20Mhz of the 700Mhz spectrum won in the US market and the new and future IMT-Adanced requires 40 and or 100Mhz of spectrum where do these folks get the additional spectrum ?
Missing something fundamental here.
Jim
IPobserver
50%
50%
IPobserver,
User Rank: Light Beer
12/5/2012 | 3:35:49 PM
re: ITU Approves New 4G Specs
It is a fundamental for the entire industry and is not specific to AT&T and VZW.

If youGre looking for the potential IMT Advanced bands, there are two charts here that identify candidate bands per WRC 2007.

http://www.unstrung.com/inside...

ThatGs not to say operators canGt do LTE in 700 MHz or AWS.
wap545
50%
50%
wap545,
User Rank: Light Beer
12/5/2012 | 3:35:44 PM
re: ITU Approves New 4G Specs
Thanks for the input. Very difficult to find folks that know what they are talking about vs. those spouting vendor propaganda.

Jim A
Featured Video
From The Founder
Light Reading is spending much of this year digging into the details of how automation technology will impact the comms market, but let's take a moment to also look at how automation is set to overturn the current world order by the middle of the century.
Flash Poll
Upcoming Live Events
October 18, 2017, Colorado Convention Center - Denver, CO
November 1, 2017, The Royal Garden Hotel
November 1, 2017, The Montcalm Marble Arch
November 2, 2017, 8 Northumberland Avenue, London, UK
November 2, 2017, 8 Northumberland Avenue London
November 10, 2017, The Westin Times Square, New York, NY
November 16, 2017, ExCel Centre, London
November 30, 2017, The Westin Times Square
May 14-17, 2018, Austin Convention Center
All Upcoming Live Events
Infographics
With the mobile ecosystem becoming increasingly vulnerable to security threats, AdaptiveMobile has laid out some of the key considerations for the wireless community.
Hot Topics
The Revolution Will Be Automated
Steve Saunders, CEO and founder, Light Reading, 10/10/2017
The Big Cable DAA Update
Mari Silbey, Senior Editor, Cable/Video, 10/11/2017
Is US Lurching Back to Monopoly Status?
Carol Wilson, Editor-at-large, 10/16/2017
Telecom Italia Covers 73% of Italy With NB-IoT
Iain Morris, News Editor, 10/13/2017
DT: Brutal Automation Is Only Way to Succeed
Iain Morris, News Editor, 10/10/2017
Animals with Phones
Hunt & Peck Click Here
Giving new meaning to hunt-and-peck typing!
Latest Comment
Live Digital Audio

Understanding the full experience of women in technology requires starting at the collegiate level (or sooner) and studying the technologies women are involved with, company cultures they're part of and personal experiences of individuals.

During this WiC radio show, we will talk with Nicole Engelbert, the director of Research & Analysis for Ovum Technology and a 23-year telecom industry veteran, about her experiences and perspectives on women in tech. Engelbert covers infrastructure, applications and industries for Ovum, but she is also involved in the research firm's higher education team and has helped colleges and universities globally leverage technology as a strategy for improving recruitment, retention and graduation performance.

She will share her unique insight into the collegiate level, where women pursuing engineering and STEM-related degrees is dwindling. Engelbert will also reveal new, original Ovum research on the topics of artificial intelligence, the Internet of Things, security and augmented reality, as well as discuss what each of those technologies might mean for women in our field. As always, we'll also leave plenty of time to answer all your questions live on the air and chat board.

Like Us on Facebook
Twitter Feed