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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

triductorThe Chinese chipmaker has been almost invisible for two years, at least in the West. They are a substantial company, now ten years old. Their CEO is a U.C.L.A. Ph.D who was successful in American chip companies until he founded Triductor in 2005 in California. The funding and market developed in China and they moved. They have a substantial business although I've seen no figures. Huawei, by far the largest telecom supplier, has a close relationship. I covered Triductor a while back, when they were considering extending their VDSL line to Good to see another supplier confident of demand.

Lincoln Lavoie's University of New Hampshire Interoperability Lab is crucial to the future of and is strongly supported by the Broadband Forum. Broadcom and Sckipio are working hard to make their chips fully compatible because their customers want more than one choice. As so many vendors cut back, any smart buyer wants the protection of a second source. 

Ubilinx, on the attendee list below, is the well-known chip vendor, Realtek,  Brian Santo reports. I guess the marketing department is experimenting with a new name, but I haven't spoken to them in a while.  Leading DSLAM makers Adtran, Calix, & Nokia will be there. Huawei, the last of the four majors, hasn't registered yet; they may be expecting the chip vendors to represent them. 

Few have come to grips with how few vendors remain in telecom. I rarely see any but those four, although XyZEL and others have designs. That's also true in 4G and 5G wireless. No one in North America can deliver a wireless network since Lucent was swallowed. AT&T and Verizon have to choose among Nokia, Ericsson, and perhaps Samsung. (The U.S. blocks Huawei and ZTE.) Nokia and Ericsson are more than decimated. ZTE is reported to be chopping 3,000 heads. Huawei is maintaining their $10B research budget, which is more than Nokia & Ericsson combined, which doesn't help the Americans.

AT&T and Verizon really should increase their research budget by a billion or two each just to keep up. That's only 1% or so of sales, but they probably won't do so. They have promised Wall Street more than than can reasonably be delivered. Research payoffs take too long. AT&T is spending money heavily on SDN & NFV, with an admirable degree of openess. They need to do much more.


CompanyEquipment Provided
ADTRAN GmbH DPU Solutions
ARRIS CPE Solution
Broadcom FTU-O & FTU-R Solutions
Calix CPE & DPU Solutions
EXFO CPE Solution
Greenlee Communications CPE Solution
Intel FTU-R Solution
Nokia CPE & DPU Solutions
Sckipio FTU-O & FTU-R Solutions
Technicolor CPE Solution
Triductor Technology(suzhou), Inc. VTU-R Solution
Ubilinx Technology, Inc. FTU-O & FTU-R Solutions
Viavi Solutions CPE Solution

The Site for gfast 230 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.

Deutsche Telecom: 35b Supervectoring Delayed to 2019
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 DT itself is planning extensive deployments in 2019, mostly in apartment buildings.

Gigabit 100 Meters - Unless the Wires are Lousy
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 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 & 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.

AT&T Wants Coax 2-5 Gigabit Very Soon.
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."

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