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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

New option where you have copper, digging fiber would be expensive, and you don't have line of sight for microwave. Sckipio's single port G.fast is an ideal solution if you need hundreds of megabits a few hundred meters from fiber. A telco engineer told me five months ago that is a common situation. He wanted a way to use a single line of G.fast. For a decade, people have been making connections like that with six and twelve lines of DSL, awkward and fairly expensive. Copper phone wires go almost everywhere and often you can find a fairly direct connection - especially if you are the phone company with access to the manholes. It's easy to imagine a small radio station with a dozen people on staff across a highway from fiber, or three homes about 200 meters beyond a telco GPON network. 

I live about 50 meters from Columbia's Engineering School, with probably a terabit of connectivity. There are 50 apartments in my building and 800-1000 apartments like mine within 200 meters. Most are owned by Columbia. Verizon can't deliver more than 6 megabits to any of us. It would be easy to deliver 500-800 megabits of G.fast to our building if you could find a simple wire run from Columbia, which may well be in place.

Connect that copper line to a G.fast unit in the basement, and everyone in the building could have several hundred megabits 95+% of the time. We could have 50/50 or close to 100/100 with cheap, quickly installed VDSL. (Fortunately, we have high speed cable. Most of the world doesn't.)  

I bet field engineers reading this can recall dozens of circumstances this would do the job.

SCKIPIO ANNOUNCES WORLD’S FIRST SINGLE PORT G.FAST DPU WITH DYNAMIC TIME ASSIGNMENT

Extends GPON networks by leveraging existing coax and copper wiring

Ramat Gan, Israel – October 11, 2016 – Sckipio Technologies, the leader in G.fast, announces the first single-port G.fast distribution point unit (DPU) reference design to provide up to 1Gbps of symmetrical broadband over existing coax and copper wiring. The solution acts like virtual fibre by extending GPON networks with twisted pair or coax within multi-dwelling units (MDUs) and single-family households (SFUs).

The new reference design leverages Sckipio’s breakthrough dynamic time assignment technology (DTA), which provides up to 1Gbps of broadband access in either direction. The solution also supports reverse power feeding from Microsemi to make it easy to implement in many environments including at the door, at the floor, in the basement or outside the residence.

Sckipio’s solution uses a very thin management layer for G.fast allowing operators to keep their existing GPON management layer and to extend it with a separate G.fast management layer. This speeds up the FTTH rollout by avoiding costly and time consuming IT integration of new management protocols into existing management frameworks.

The joint reference design was build in conjunction with Intel and Microsemi, offering OEMs the fastest path to deployable single-port DPUs. The solution will work within an existing Intel-based GPON management infrastructure.

“Sckipio is opening up an entirely new use-case for G.fast,” said Teresa Mastrangelo, Principal Analyst, Broadbandtrends. “By combining DTA and unmanaged G.fast, Sckipio makes it effortless to add G.fast to any GPON network.”

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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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