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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

man-with-a-movie-cameraUntil now, only coax allowed individual speeds to be modified.  G.fast allows changing the downstream/upstream ratio from 90/10 to 10/90. While most of the time higher downstreams are better, Sckipio has demonstrated 750 up. Before DTA, you could only deliver at a fixed ratio to all the customers connected to a DPU; the first DTA systems, from Adtran and Calix, only worked on low-interference lines, either coax or an isolated pair of phone lines. In Booth 20D at BBWF, Sckipio and Calix will have a live demo of Collective dynamic time assignment, their name for DTA over twisted pair in a typical binder. I have unofficially seen some test results; they look good.  

When I first saw DTA, I immediately knew why I wanted it. I need faster upstream because we're backing up terabytes of Jennie's video footage to Amazon's unlimited cloud. At $55/year, that's a great deal. I've spent two months so far at Time Warner's top speed of 20 megabits, 200 down. I'd much rather have 75/75, but FiOS doesn't come to my building. If we had 500 megabits from fiber to my basement, I could have 100 down and 400 up. If my neighbor installed 12 virtual reality headsets for gaming friends, she might prefer 400 down, 100 up. (Wish I had the speed today.)

Rami Verbin of Sckipio told me a while back he was working on this, but I didn't expect it to be working so soon. It requires brilliant mathematics for signal processing and state of the art electronics. 

Calix writes me, "Close coordination between both us resulted in the ability to push G.fast further. We've added DTA support for the higher density, higher-crosstalk environments that arise when twisted pair bundles are present and traffic goes both ways. There are all sorts of problems here. With dynamic time assignment the crosstalk can originate at either end, and is stronger at the source than the received end – so quite a lot of calculations have to go on to cancel it all. The Sckipio system analyzes traffic across all the ports and optimizes performance for the entire DPU system.

Here's the pr; I'll be doing a sponsored email for them soon with more details.

SCKIPIO AND CALIX INTRODUCE COLLECTIVE DYNAMIC TIME ASSIGNMENT FOR G.FAST

World’s first G.fast solution to support DTA over multiple vectored lines concurrently

 

Ramat Gan, Israel – October 11, 2016 – Sckipio Technologies and Calix, Inc. announced a joint implementation of the world’s first collective dynamic time assignment (DTA) technology running on a 16-port vectored G.fast distribution point unit (DPU). This will allow broadband subscribers to gain access to the highest possible upstream and downstream capabilities that G.fast has to offer.

 

Earlier in the year, Sckipio announced the invention of DTA (also known as dynamic bandwidth allocation). At that time, DTA was only available on low crosstalk environments such as coax applications or single line scenarios. Now, close coordination between both Calix and Sckipio have resulted in the ability to push G.fast further by adding support for the higher density, higher-crosstalk environments that arise when twisted pair bundles are present.

 

The system is designed to listen for the demands of each consumer and to coordinate the upstream and downstream traffic to optimize the solution for the subscriber based on how he or she really uses broadband. As a highly sophisticated system, it analyzes traffic across all the ports and optimizes the performance for the entire system to ensure the highest overall performance at all times – resulting in the highest customer satisfaction.

 

“Broadband success is all about technologies that enable anyone to provide modern bandwidths to everyone,” said Greg Whelan, Principal Analyst, Greywale Insights. “Cities and buildings face the same barrier to success– the embedded base of wires. The advances in G.fast eliminates this and should fuel broadband success around the globe.”

 

To see G.fast collective DTA solution from Sckipio and Calix in action, visit the Sckipio booth (D20) at the Broadband World Forum. ExCeL Convention Centre in London, October 18 – 20, 2016.

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Quantenna Announces World’s First 802.11ax Wi-Fi Solution

New QSR10G-AX Access Point Product Supports Latest 802.11ax Draft 1.0 Specification

              

London, Oct. 17, 2016 – BBWF 2016 – Quantenna Communications, a leader in ultra-high performance Wi-Fi, today announced the industry’s first 802.11ax product called QSR10G-AX. This product is built on Quantenna’s QSR10G Wave 3 Wi-Fi platform and adds support for the draft 1.0 of the IEEE specification 802.11ax standard.

 

As Wi-Fi usage continues to grow, the Wi-Fi 802.11 IEEE standard evolves to cope with the augmented complexity of Wi-Fi networks. 802.11ax was designed with the goal of increasing Wi-Fi networks efficiency in dense deployments such as multi-dwelling units. In addition, it improves Wi-Fi network capacity and performance in terms of its ability to support more simultaneous clients. Lastly, 802.11ax provides increased speed over 802.11ac. All of these improvements are helpful for businesses, public venues, and also in homes where the number of clients continues to grow due to the proliferation of mobile and Internet of Things devices.

 

Quantenna continues to lead the Wi-Fi industry by announcing the world’s first 802.11ax Access Point solution. The QSR10G-AX solution will support 12 total streams: 8 streams in the 5GHz band and 4 streams in the 2.4GHz band. QSR10G-AX adds support for downlink and uplink OFDMA (Orthogonal Frequency-Division Multiple Access), providing superior network efficiency in dense environments as well as high uplink performance. OFDMA dedicates different sub-carriers for individual client devices. This allows multiple devices to be simultaneously served.

 

QSR10G-AX is designed to enable a very easy and fast transition for existing QSR10G customers. The QSR10G-AX chipset is pin-to-pin compatible with QSR10G, Quantenna’s Wave 3 12-stream dual-band 802.11ac and 802.11n access point solution. As a result, customers designing with QSR10G solution will be able to drop in the new QSR10G-AX solution.

 

“Innovation is what drives us at Quantenna,” said Dr. Sam Heidari, Chairman and CEO at Quantenna. “We were the first company to deliver 4x4 802.11n, 4x4 802.11ac and 8x8 802.11ac. Now, we are proud to continue our Wi-Fi industry leadership by being the first to announce an 802.11ax compliant solution.”

 

"Quantenna is launching another leading-edge Wi-Fi solution to the market. 802.11ax represents the next evolution of Wi-Fi and increases throughput and capacity needs for our end markets," said Venkat Sundaresan, Director of Product Management, Cavium Inc. "This innovative access technology will allow our powerful processor solutions to deliver new levels of performance, scalability and capacity."

 

“Quantenna has once again demonstrated its pioneering innovation and leadership in the Wi-Fi market with the announcement of the QSR10G-AX,” said Andrea Goldsmith, Stephen Harris Professor of Electrical Engineering at Stanford University. “This technology, which incorporates the 802.11ax protocol, is a leap forward for Wi-Fi through the access technique of OFDMA. The more flexible, efficient, and adaptive use of the Wi-Fi spectrum enabled by OFDMA will increase the data rates of the QSR10G-AX over current products, while also supporting in a reliable and scalable manner the growth of client devices in dense deployments. The transformative technology of the QSR10G-AX will be beneficial for high-performance Wi-Fi devices as well as emerging applications in the IoT.”

 

Key QSR10G-AX Planned Features and Benefits

·        Integrated AP chipset for dual-band (5GHz and 2.4GHz), dual concurrent operation and management

·        Pin-to-Pin compatibility with QSR10G

·        802.11ax Draft 1.0 compliant

·        12-stream operation

·        Supports rich set of interfaces to external hosts such as PCIe Gen3/Gen2, RXAUI, RGMII, and others

·        Support 2.4GHz coexistence interface

·        Enable full offload for external host

·        Cloud managed

 

Availability
Quantenna’s QSR10G-AX is expected to sample to early access partners in the early part of 2017.

 

Quantenna is exhibiting in its private meeting room at Novotel ExCel during Broadband World Forum in London on October 18 and 19, 2016.

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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