In 2016, G.fast looked very promising.
Thousands worked at developing and deploying.
It wasn't enough.
Most carriers are investing
in fiber or 5G instead.
Dark Blue: 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 Blue: Smaller carriers in Germany, Norway, Finland, Japan
- Published: 20 July 2017 20 July 2017
Demos double frequency G.fast and cDTA with Deutsche Telekom. Adtran only claims "gigabit rates" but the technology is designed for over a gigabit and a half, combined upstream and downstream. I infer from their comments they are ready to ship. They also claim good performance from DTA, rapidly shifting upstream and downstream ratios based on traffic demands.
Sckipio's supplying the chips for cDTA, according to Richard Chirgwin in The Register. With the DTA now working on ordinary twisted pair. Telcos to claim "effective speeds of 500 upstream, 500 downstream." G.fast from fiber to the basement or wireless to the rooftop now outshines gigabit DOCSIS, especially on the upstream. Few cablecos are likely to improve their upstream significantly before Full Duplex is ready next decade. Verizon is heavily advertising their 50/50 & 100/100 Fios speeds because the higher upstream is winning customers.
Rami Verbin of Sckipio is one of the most creative chip designers I know. He's been working on continuously varying the upstream/downstream splits in G.fast. His models were very convincing and the chips have been highly anticipated.
In a joint press release with DT, Adtran says, "ADTRAN demonstrated the new 212MHz G.fast standard, which doubles the usable spectrum. This doubling of the usable spectrum allows service providers to deliver gigabit rates over a single copper pair, enabling robust fibre-like service delivery all the way to the customer premise. In contrast to cable systems, the bandwidth of G.fast is dedicated and available for each customer. The tests, leveraging the first commercially available 212MHz DPU also demonstrated the second phase of DTA. cDTA, like the earlier iDTA feature, improves G.fast upstream performance by four to five times by dynamically balancing upstream and downstream capacity to match residential traffic patterns in real-time. cDTA also expands the applicability of this feature to existing phone wiring, thus covering nearly all residential and commercial premises."
I've sent a note to Broadcom and Metanoia asking about their progress on 212 GHz. and cDTA, which I'll add to this article if they also have news.
AT&T is expanding G.fast out of district, although the serious volume is a few quarters away. Century, Frontier and the smaller telcos are natural targets for T and they want to have a counter if VZ comes after them in fixed. "They will get better at it, they will get faster at it, and will be ramping." Modest volume likely until 2018.
Australia's NBN has now confirmed they are going with Adtran for a million lines of fiber to the curb. Officially, that isn't G.fast but it makes no sense to make any other choice. Also likely modest volume until 2018.
Finally, Deutsche Telekom's new management is realizing VDSL may not be enough to compete with cable and fiber. Then CTO Bruno Jacobfeuerborn in 2015 said they would go for G.fast, but the finance side veto'ed the budget. Looks like they are back in the game. G.fast is the right choice for the >5M large buildings in Germany.
Adtran had a superb quarter and these new deployments suggest business will be good at yearend. Wall Street thinks so and the stock jumped 15%. Stanton believes their SDN variant Mosaic is a powerful differentiator and reports most new customers are using it. The new contracts seem to have a large services component, which pulls down margins in the short run.
Calix and Adtran intend to prove the report of the death of the U.S. telecom industry is premature..
For the record: Adtran will be paying my expenses to their event in Huntsville in August. I'm going to try to bring Jennie and her camera..
|ADTRAN and Deutsche Telekom Look to Ultra Broadband Evolution to Advance the Gigabit Society|
Lab trials proving latest G.fast innovations, 212Mhz and cDTA, will accelerate deployment of ultra-fast and gigabit broadband services
DARMSTADT, Germany--(BUSINESS WIRE)--Jul. 18, 2017-- ADTRAN®, Inc., (NASDAQ: ADTN), a leading provider of next-generation open networking solutions, today announced the start of lab testing of the latest innovations in the G.fast standard, 212MHz and coordinated dynamic time allocation (cDTA) together with Deutsche Telekom (DT). DT is evaluating these ultra-broadband technologies using Fibre-to-the-Building (FTTB) deployment models allowing the use of existing cable infrastructure within the home. This will allow the rapid deployment of ultra-fast and gigabit broadband services with minimal disruption. The low cost per subscriber connection pays directly into achieving European Commission’s Gigabit Society goals.
ADTRAN demonstrated the new 212MHz G.fast standard, which doubles the usable spectrum. This doubling of the usable spectrum allows service providers to deliver gigabit rates over a single copper pair, enabling robust fibre-like service delivery all the way to the customer premise. In contrast to cable systems, the bandwidth of G.fast is dedicated and available for each customer. The tests, leveraging the first commercially available 212MHz DPU also demonstrated the second phase of DTA. cDTA, like the earlier iDTA feature, improves G.fast upstream performance by four to five times by dynamically balancing upstream and downstream capacity to match residential traffic patterns in real-time. cDTA also expands the applicability of this feature to existing phone wiring, thus covering nearly all residential and commercial premises.
“Operators in highly competitive, dense urban or urban environments are challenged to extend gigabit services due to the time and cost that can be associated with pure play FTTH techniques,” said Jay Wilson, senior vice president at ADTRAN. “With G.fast innovation, operators, such as DT, can significantly accelerate Gigabit Society goals by launching gigabit services over their existing infrastructure dramatically reducing subscriber disruption.”
These two most recent G.fast advancements, 212MHz and cDTA, extract even greater overall performance from an operator’s existing assets, and in many scenarios, eliminates the need for full FTTH for years. For the first time, these G.fast innovations enable service providers to more rapidly and cost-effectively extend symmetric gigabit services and expand ultra-fast broadband to the wider market.
ADTRAN, Inc. is a leading global provider of networking and communications equipment. ADTRAN’s products enable voice, data, video and Internet communications across a variety of network infrastructures. ADTRAN solutions are currently in use by service providers, private enterprises, government organizations, and millions of individual users worldwide. For more information, please visit www.adtran.com.
Deutsche Telekom is one of the world's leading integrated telecommunications companies, with some 165 million mobile customers, 28,5 million fixed-network lines, and 18,5 million broadband lines. Deutsche Telekom provides fixed-network/broadband, mobile communications, Internet, and IPTV products and services for consumers, and information and communication technology (ICT) solutions for business and corporate customers. More information are available on https://www.telekom.com/en.
Source: ADTRAN, Inc.
Cohesive for ADTRAN