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gfast map nov

Dark Green: Firm commitments from incumbent: BT (10M), Belgacom, Australian NBN, Swisscom,  Austria, Bezeq Israel, Chunghwa Taiwan, Telus Canada, Telekom South Africa, SK Korea, (U.S.) AT&T, Century, Frontier, Windstream, Belgium, Omantel

Mid Pink: Smaller carriers in Germany, Norway, Finland, Japan

Light Green: Incumbent likely:  France, Germany, Italy

netcologne und zte praesentieren 18 gb g.fast loesung auf anga comNext year, 260,000 lines. Cologne and Munich city nets have long been outclassing DT, especially with fiber deployment. CEO Timo von Lepel gets it, "One day, 100 Mbps will be the lowest data rate available." They have installed 25,000 kilometers of fiber, including to the basements of most substantial buildings. They run VDSL at 50-100 megabits to most apartments, but will rapidly replace that with G.fast.

They plan to use 212 MHz of bandwidth for speeds over 1 gigabit. At Anga Com, they showed download speed of 1.6 gig and upload of 200 megabits with equipment from ZTE. In the picture next to the speed test are Sun Jie of ZTE on the left, von Lepal and Horst Schmitz on the right. They have good reason to smile.

Apparently, ZTE is using Broadcom G.fast chips. They expect the 212 MHz chips to be in limited supply until next year.

I'm waiting for Broadcom to provide details. In particular, it's not clear Broadcom (or anyone) can do the heavy calculations for vectoring the higher speeds. Adtran and Deutsche Telekom announced results of their private testing of 212 MHz and cDTA. The cDTA is on Sckipio chips. 

Until we get more public testing, delivery dates are very fuzzy.

 

G.fast technology: NetCologne and ZTE break new speed record on the Anga Com!

Cologne, 31.05.2017

Above: Sun Jie, Managing Director of ZTE Germany, Timo von Lepel, Managing Director of NetCologne and Area Manager Horst Schmitz (NetCologne) at today's live demonstration at ZTE booth.

The Cologne-based telecommunications provider NetCologne and the Chinese technology group ZTE presented today at the Anga Com a new technological milestone. With the 212 Megahertz G.fast solution, the limit of 1 Gigabit was exceeded for the first time in the live test.

Breakthrough: 1.8 Gigabit
NetCologne continues to increase its speed and continues to take the lead over G.fast across Germany. "With the current measurements, we have reached a new record," says NetCologne CEO Timo von Lepel at today's live demonstration at the Anga Com. For the first time the speeds of more than 1.8 gigabits per second were shown outside the laboratory (download 1.6 Gbit / s, upload 0.2 Gbit / s).

New 212 megahertz profile
This new generation of chipsets is possible in the ZTE DSLAMs. During the pilot phase in the spring, NetCologne had initially worked with the frequency band up to 106 Megahertz for data transmission. As a result, speeds of 850 Mbit per second have already been achieved in real operation. With the new 212 Megahertz profile, the Cologne-based company is now taking a step further in the laboratory tests. "By re-doubling the frequency spectrum for data transmission, we are near the two gigabit brands for the first time," Lepel says.

Cooperation with ZT
ZTE supports NetCologne as a technical partner in the strategic development of the existing FttB network (= Fibre to the Building). "Together with NetCologne, we continue to push the G.fast technology to their limits and create the ideal basis for future applications," said Sun Jie, Managing Director of ZTE Germany. "These ultra-high speeds are unique in a global comparison."

Precondition for G.fast
The G.fast technology will be available in the NetCologne network in the course of the year in 260,000 households. The prerequisite for this is that the respective building has a fiber optic connection from NetCologne. A further expansion of the G.fast network is planned in perspective.

The Site for gfast 230
 

G.fast News

I’m still working through remarkable presentations from the Broadband Forum events. Michael Weissman, Bernd Hesse and team did a remarkable job choosing the speakers. http://bit.ly/BBFBASE

Deutsche Telecom: 35b Supervectoring Delayed to 2019 http://bit.ly/35blater
Broadcom is now over 3 years late. DT briefed German reporters after their financial call and revealed 35b was now delayed until 2019. 35b should deliver 200+ meg downloads 500-600 meters, a crucial tool for DT, which is losing share to cable. Cable now covers about 70% of Germany and is expanding. DT now only offers 50-100 megabit DSL while cable is often 400 megabits, going to a gigabit. 

The problem is software; the hardware is shipping and supposedly will work. DT says 35b is not ready to turn on. Broadcom in 2015 said 35b was in "production" in the press release below. Alcatel in early 2016 said to expect complete systems very soon. "35g is very similar to 17a so there should be little delay."

Broadcom's problems are leading major telcos and vendors to have a plan B, using Sckipio G.fast. DT itself is planning extensive G.fast deployments in 2019, mostly in apartment buildings. http://bit.ly/35blater

Gigabit 100 Meters - Unless the Wires are Lousy http://bit.ly/gflousy
Speeds are fine, "Unless there's a line problem." I've been reporting for three years that ~10% of lines have problems. In the chart by Rami Verbin of Sckipio, he finds G.fast goes ~130 meters on good lines. Poor lines have about half the reach. 

His chart roughly matches the reports from Swisscom, Belgacom, and England for both G.fast & vectored DSL. The 10% with problems can cause the majority of the line-related complaints to support. The angry customers drive up cost.

Rami's solution to reach the gigabit is bonding, supported on the Sckipio chips. Verbin made some additional points:

  • 4 gigabits is possible by bonding two decent 2 gigabit lines.
  • Even in a service from remote cabinets, ~25% are close enough to get a full gigabit."
  • cDTA and iDTA are practical ways to deliver much higher upstream by switching some bandwidth from downstream to upstream only when needed.
  • 35B will probably be similar but Deutsche Telecom doesn't expect to deploy until 2019. http://bit.ly/gflousy

AT&T Wants Coax 2-5 Gigabit G.fast. Very Soon. http://bit.ly/ATTCoax
AT&T faces intense competition from cable, talking about 10 gigabits in both directions. (Cable will only be 1 gig down, ~100 meg up, until ~2021.) AT&T wants something to brag about as well.

AT&T gained millions of lines of coax as part of the DirecTV deal. Alcatel and Huawei are leading the development of G.mgfast. That uses 424 MHz, full duplex, to achieve ~2.5 gigabits in both directions. The reach on telco twisted pair is only about 30 meters. On coax, those speeds can probably extend far enough to service most apartment buildings. Using 848 MHz, speeds can reach 5 gigabits. The ITU standards group has been aiming for 2019-2020 for G.mgfast, too slow for AT&T's marketers. David Titus wants a high-speed standard for coax "early in 2018." He believes that is "doable."http://bit.ly/ATTCoax

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