In 2016, G.fast looked very promising.
But only BT & Australia's nbn remain
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: 12 November 2018 12 November 2018
G.fast using 212 MHz of spectrum can deliver 1.5 gigabits+. That's enough to cover apartment buildings in Seoul and Seongnam, South Korea, as SK Broadband is doing. They are cascading two 24 port boxes from HFR, featuring the 24 port Sckipio chip.
While Korea was one of the first to gigabit fibre, Sckipio reports two-thirds of Koreans do not have fibre all the way home. Most terminate the fibre in the basement, where G.fast is a natural upgrade for the original VDSL. Much of Japan is similar. When the typical fibre speed was 100 megabits, most of us counted fibre to the basement + 100 meg VDSL in our FTTH figures. That's no longer appropriate with gigabit fibre now common.
Korea Telecom is the leading proponent of using G.hn rather than G.fast. KT and MaxLinear claim the crosstalk in G.hn is rarely a major problem. I have seen no data from the field.
Sckipio is working to deliver 48 ports in a single unit.
SK Broadband Breaks 1Gbps Gfast Barrier with Sckipio-enabled Solution
SK Broadband rolls out first true gigabit Gfast 212MHz service in Seoul and Seongnam, South Korea
Ramat Gan, Israel – November 12, 2018 – and internet service provider SK Broadband announced the first commercial deployment of Gfast 212MHz gigabit internet in Asia. SK Broadband deployed the new Gfast gigabit service in Seoul and Seongnam, South Korea.
“SK Broadband is determined to provide gigabit internet to all, but not all South Korean apartments can be easily wired with fiber all the way to the apartment,” said Choong-Bok Lee, the manager in charge of access networks at SK Broadband. “That’s why we chose Sckipio’s Gfast. It’s the best way to extend gigabit fiber performance to these apartments over existing twisted pair telephone wires.”
SK Broadband has a long history of being first to market with the most advanced access technologies at that time, such as VDSL, G-PON, NG-PON2, XGS-PON and now Gfast. SK Broadband began commercial service to residential customers with the world’s first NG-PON2 supporting up to 52.25Gbps, as well as XGS-PON. SK Broadband achieved remarkable, world-leading broadband speeds by using a practical approach of combining fiber and copper. Most South Korean apartment buildings already have fiber to the basement. Yet, often these are older buildings, making it impractical to bring fiber all the way to the apartment. That is the reason why only 34 percent of South Korean apartments have fiber all the way to the apartment while the remaining 66 percent are needing another approach.
That is where Gfast comes in. Gfast is a standards-based access network technology that adds true gigabit connections to each unit in the building by using the existing twisted pair telephone wiring. By applying vectoring technology for crosstalk cancellation between lines, Gfast ensures fiber-like performance, but at a fraction of the time, hassle and cost. This true vectoring technology provides concurrent gigabit service to all subscribers connected within the same wire binder at the same time, which vectorless technology cannot achieve. Gfast can also be extended to up to 96 gigabit ports by stacking distribution point units (DPUs) together and vectoring across the DPUs. This provides carriers, such as SK Broadband, with significant CAPEX savings.
According to the Korean Statistical Information Service, over half of the residents of Seoul and the surrounding Gyeonggi Province live in high-rise buildings with a high density of apartments. To reach all these residents with gigabit speeds required new Gfast solutions that can support both the latest 212MHz technology and that can implement vectoring (crosstalk cancellation technique) over a large count of lines simultaneously. South Korean network infrastructure equipment maker HFR worked with Sckipio to provide SK Broadband solutions that support up to 96 subscribers. HFR’s DPU serves 24 subscribers in a single DPU and can be connected to an additional three DPUs, forming a larger vectoring group of 96 ports to serve 96 subscribers sharing the same copper binder. Only Sckipio’s Gfast supports 96 concurrent gigabit subscribers.
“By partnering with SK Broadband and HFR, we are accelerating South Korea’s lead in broadband speeds,” said David Baum, Sckipio CEO. This deployment demonstrates the clear use case for Gfast technology to deliver gigabit service to large apartment environments without needing to install fiber connections to each apartment.”
“Gigabit speeds have become the new marketing standard for operators around the world,” said Julie Kunstler, Principal Analyst at Ovum. “Given South Korea’s advanced access infrastructure and competition for broadband subscribers, it follows that SK Broadband is embracing Gfast.”
, the leader in Gfast, develops award-winning, standards-compliant Gfast modems used to enable ultra-broadband access and mobile backhaul. Sckipio partners with more than 30 companies globally on Gfast and is one of the leading contributors to the ITU-T standard. For more information about Sckipio, visit our website at . For more information, follow us on, and Twitter.
HFR and Sckipio Deliver World’s First 24-Port Scalable Gigabit Gfast DPU
SK Broadband uses HFR solution with Sckipio technology and chipset to roll out gigabit service to Seoul and Seongnam, South Korea
Ramat Gan, Israel – November 12, 2018 – Sckipio’s 212MHz Gfast technology and cross-DPU vectoring, HFR is able to deliver true, scalable and deployable gigabit broadband in large multi-dwelling unit (MDU) environments. SK Broadband is leveraging this HFR solution for their new South Korean gigabit service for residents in large and older apartment buildings. and announced the world’s first gigabit 24-port distribution point unit (DPU) capable of scaling up to 96 subscribers. Based on
HFR will market this solution worldwide and anticipates particular interest for high-port gigabit density in Asia-Pacific where fiber infrastructure does not reach all the way to the individual apartments. This region has a high concentration of MDU residency. In Tokyo alone, 70 percent of residents live in apartments, yet millions of these residents in Japan are offered only VDSL because fiber can go only as far as the basement and not all the way to the apartment.
“Telcos can now bring deep fiber to a DPU at the street, pole or basement in the building. Then, they can achieve gigabit broadband speeds by connecting twisted pair (telephone) wire from that DPU directly into the apartment,” said Yongsook Son, Vice President from HFR. “WithSckipio’s Gfast chipset, HFR can now help Asia-Pacific telcos rapidly and affordably increase their gigabit footprint while reducing their CAPEX.”
The new DPU has 24 subscriber ports and it can scale up to 96 ports by stacking 4 such DPUs using Sckipio’s cross-DPU-vectoring technology. Powered by Sckipio’s SCK23000 family of chipsets, the HFR DPU delivers second-generation Gfast and supports up to 2Gbps in both downstream and upstream directions. The HFR solution delivers gigabit access speeds to four times as many subscribers sharing a single binder than competitive solutions – all without the need for an external vectoring engine.
“By partnering with HFR, we are accelerating Asia-Pacific telecommunications companies’ ability to deliver gigabit speeds to MDU locations,” said David Baum, Sckipio CEO. “SK Broadband is the first to use our 24-port DPU in a commercial deployment and makes the case for Gfast technology to deliver gigabit service to subscribers without needing to bring costly fiber all the way into the apartment.”