spacer 2Telebyte Gfast Testing Guide 320

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

Promising "samples" in June. Ikanos has a slew of first quality engineers, led by Debu Pal. Hopes are high for their chips. No carriers discussed using the chip, but it has a natural role replacing VDSL at NTT, which has several million lines of fiber to the basement.  I'd expect the tight supply at Broadcom and their large cutback in research is inspiring people to make sure they have a second source. 
 
They chose not to release any technical details, possibly because of issues with new owner Qualcomm. (Ikanos previously provided the information expected from a public company.) Most likely, it's basic G.fast combined with Ikanos' previous VDSL chip. It probably has a few tweaks to work with the existing 30 MHz VDSL common in Japan. 
 
They claim, "Gigabit data rates up to 100m on existing telephone lines providing a high-speed extension for VDSL without losing any spectrum capacity." They provide neither test nor simulation data. Readers are reminded that similar claims by other chip vendors were a stretch. More realistic speeds are 500-800 megabits.?
 

Combine that claim with this comment in the release: “GigaDSL addresses the unique requirements of Japanese carriers with key capabilities including multi operator environment and interoperability with deployed VDSL CPEs?" The implication would seem ?to be that Ikanos is vectoring existing VDSL from competitors with G.fast. That would be a major achievement but is unlikely.

 More details to come..
Here's the pr:
Qualcomm Delivers New GigaDSL Offerings to Help Broadband Operators Seamlessly Transition to Gigabit Services

New GigaDSL Products Bring Industry-First Speeds to Consumers and Carriers

MAY 31, 2016 TAIPEI, TAIWAN

Qualcomm Incorporated (NASDAQ: QCOM) today announced at COMPUTEX 2016 that its subsidiary, Qualcomm Technologies, Inc., introduced end-to-end GigaDSL products that enable broadband operators to seamlessly transition deployments from VDSL to Gigabit access technologies.  Designed to meet the requirements for the migration for existing VDSL by operators, especially in Korea and Japan, the new QCO5700 for multiple dwelling units (MDU) and the QCM5720 for customer premises equipment (CPE) can provide up to 1 Gigabit per second (Gbps) broadband over existing telephone lines – while maintaining interoperability with carriers’ existing modems and seamless coexistence with deployed infrastructure.

The new GigaDSL chipsets are ideal as operators keep pace with consumer demand and national mandates for broadband access, with minimal service interruption. They are the industry’s first wireline solutions to support Gigabit data rates up to 100m on existing telephone lines providing a high-speed extension for VDSL without losing any spectrum capacity. The existing deployment base can be upgraded to products based on Qualcomm Technologies’ latest GigaDSL processors, without costly and time intensive wiring on-premise.

“We are committed to driving leading edge technologies to meet carrier's unique requirements, including in Japan and Korea,” said Irvind Ghai, vice president of product management, Qualcomm Atheros, Inc. “With these new GigaDSL product offerings, we are able to meet carriers’ broadband goals, complementing fiber deployment in time for major events, such as the 2018 Winter Games in Korea and the 2020 Summer Games in Japan.”

Several leading manufacturers are already building or preparing to build products based on the QCO5700 and QCM5720, including Sumitomo Electronic, NEC and Wave Electronics.

“We are going to make every possible effort to replace our 1G-EPON FTTH products with 10G-EPON products in the FTTH market in Japan. The transition from VDSL to G.Fast (FDD) ‘GigaDSL’ is an important segment to realize this ‘10G upgrade’ for Telco carriers in order to complement the fiber deployment in MDU in Japan, and we are working closely with them and Qualcomm Technologies to deliver the solutions needed to make this a seamless transition,” said Hiroaki Nishimoto, general manager, broad networks division, Sumitomo Electric. “Sumitomo brings to bear our history of infrastructure expertise to make 10 Gigabit access technologies a reality.”

“GigaDSL addresses the unique requirements of Japanese carriers with key capabilities including multi operator environment and interoperability with deployed VDSL CPEs,” said Kazunori Sakai, general manager, network solutions division of NEC Magnus Communications, Ltd. “Incorporating these newest products into our technology solutions is a testament to our industry leadership in Japan as well as our continued relationship with Qualcomm Technologies.”

“Through our collaboration with Qualcomm Technologies, we can provide our customers with a seamless broadband connection that can meet the demands of increasingly crowded networks,” said Soon-Hwan Lee, chief executive officer, Wave Electronics. “With the new GigaDSL products, users do not need to worry about interoperability during the transition to Gigabit access technologies.”

Sampling for Qualcomm Technologies’ GigaDSL chipsets is expected to be available June 2016, both for Fiber to the Building (FTTB) infrastructure and CPE.

 

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

Read more ...