Very-high-bit-rate digital subscriber line 2

From Wikipedia, the free encyclopedia
Jump to: navigation, search

Very-high-bit-rate digital subscriber line 2 (VDSL2) is an access technology that exploits the existing infrastructure of copper wires that were originally deployed for traditional telephone service as a way of delivering very high speed internet access. The main high-speed link (e.g. a fibre optic connection) terminates at a hub near the customers' location. The existing copper wire infrastructure is then used to carry the high speed connection for the short remaining distance to the customers. It can be deployed from central offices, from fiber-optic connected cabinets located near the customer premises, or within buildings. It has been defined in standard ITU-T G.993.2 finalized in 2005.[1]

Description[edit]

VDSL2 is an enhancement to very-high-bit-rate digital subscriber line (VDSL), Recommendation G.993.1, and is the newest[1] and most advanced currently deployed standard of digital subscriber line (DSL) broadband wireline communications. Designed to support the wide deployment of triple play services such as voice, video, data, high-definition television (HDTV) and interactive gaming, VDSL2 is intended to enable operators and carriers to gradually, flexibly, and cost-efficiently upgrade existing xDSL infrastructure.

The protocol is standardized in the International Telecommunication Union telecommunications sector (ITU-T) as Recommendation G.993.2. It has been announced as finalized on 27 May 2005,[1] and first published on 17 February 2006. Several corrections and amendments have been published in 2007 through 2011.[2]

VDSL2 permits the transmission of asymmetric and symmetric aggregate data rates up to 200 Mbit/s downstream and upstream on twisted pairs using a bandwidth up to 30 MHz. It deteriorates quickly from a theoretical maximum of 250 Mbit/s at source to 100 Mbit/s at 0.5 km (1,600 ft) and 50 Mbit/s at 1 km (3,300 ft), but degrades at a much slower rate from there, and outperforms VDSL. Starting from 1.6 km (0.99 mi) its performance is equal to ADSL2+.[3]

ADSL-like long reach performance is one of the key advantages of VDSL2. LR-VDSL2 enabled systems are capable of supporting speeds of around 1–4 Mbit/s (downstream) over distances of 4–5 km (2.5–3 miles), gradually increasing the bit rate up to symmetric 100 Mbit/s as loop-length shortens. This means that VDSL2-based systems, unlike VDSL systems, are not limited to short local loops or MTU/MDUs only, but can also be used for medium range applications.

Bonding (ITU-T G.998.x) may be used to combine multiple wire pairs to increase available capacity, or extend the copper network's reach.

VDSL2 frequencies.png

Profiles[edit]

The standard defines a wide range of profiles that can be used in different VDSL deployment architectures; in the central office, in the cabinet or in the building for example.

Profile Bandwidth (MHz) Number of downstream carriers Carrier bandwidth (kHz) Power (dBm) Max. downstream throughput (Mbit/s)
8a 8.832 2048 4.3125 +17.5 50
8b 8.832 2048 4.3125 +20.5 50
8c 8.5 1972 4.3125 +11.5 50
8d 8.832 2048 4.3125 +14.5 50
12a 12 2783 4.3125 +14.5 68
12b 12 2783 4.3125 +14.5 68
17a 17.664 4096 4.3125 +14.5 100
30a 30 3479 8.625 +14.5 200

Vectoring[edit]

Vectoring is a transmission method that employs the coordination of line signals for reduction of crosstalk levels and improvement of performance. It is based on the concept of noise cancellation, much like noise-cancelling headphones. The ITU-T G.993.5 standard, "Self-FEXT cancellation (vectoring) for use with VDSL2 transceivers" (2010), also known as G.vector, describes vectoring for VDSL2. The scope of Recommendation ITU-T G.993.5 is specifically limited to the self-FEXT (far-end crosstalk) cancellation in the downstream and upstream directions. The far end crosstalk (FEXT) generated by a group of near-end transceivers and interfering with the far-end transceivers of that same group is cancelled. This cancellation takes place between VDSL2 transceivers, not necessarily of the same profile.[4][5]

Although technically feasible at the moment vectoring is incompatible with local-loop unbundling but future standard amendments could bring a solution.

Deployment[edit]

Europe[edit]

Austria
  • Telekom Austria started providing VDSL2 under the name Gigaspeed (now 'Glasfaser Speed') in rural areas in November 2009.[6]
Belgium
  • Belgacom has rolled out Alcatel-Lucent VDSL2 equipment in 21,000 street cabinets (Q3-2012) with more than 1,000,000 VDSL2 customers (Q3-2012). Belgacom also provides VDSL2 to smaller enterprises. Line speeds go up to 70 Mbit/s downstream and 6 Mbit/s upstream. Digital TV service Belgacom TV is delivered over this VDSL2 platform.
  • Some internet providers are re-selling Belgacom VDSL2 subscriptions (Snow by KPN, ...)
  • Since the end of May 2009, Dommel offers VDSL2. The maximum speed is 50 Mbit/s.
  • EDPnet is offering VDSL2 since November 2009. The maximum speed is 50 Mbit/s. (Some get 70 Mbit/s).
  • All Belgian Scarlet ADSL customers are being moved to the Belgacom VDSL2-based network due to the sale of the Scarlet network to SNCB/NMBS-subsidiary Syntigo.
Croatia
  • H1 telekom is providing VDSL2 to customers since August 1, 2013 and it offers speeds up to 50/15 Mbit/s flat rate
Czech Republic
  • Telefónica Czech Republic started public testing of VDSL service in mid-2009.[7] VDSL2 was launched in May 2011, with availability in about half of the households. Offered speeds included 2/0.2 Mbit/s, 16/1 Mbit/s and 25/2 Mbit/s.[8] In 2012, the speed was increased from 16/1 to 20/2 Mbit/s and from 25/2 to 40/2 Mbit/s.[9]
Cyprus
  • No VDSL products have appeared from telecom operators in Cyprus yet. OCECPR (NRA) has amended the Frequency Management Plan to facilitate the introduction of VDSL2 and launched its respective consultation.[10]
Denmark
  • TDC launched VDSL2 on January 21, 2008.[11]
  • Telenor launched VDSL2 on August 23, 2013.[12]
  • Fullrate launched VDSL2 on September 16, 2009,[13] but only for customers on exchanges with Fullrate's own equipment, rather than exchanges with leased equipment from TDC. At September 29, 2010, Fullrate announced that they were able to provide VDSL2 to all Fullrate customers, regardless of exchange.[14]
Estonia
  • Elion launched VDSL2-based business services in 2010. Current packages include 10/5, 20/5, 20/10 and 30/10. From May 1, 2013, VDSL2 is also offered to private customers with speed 30/10.
Finland
  • Saunalahti was to provide VDSL2 in December 2006 to small area as a pilot project, but was delayed until further notice due to low firmware satisfaction. In 2010 Saunalahti/Elisa provides VDSL2 subscriptions to some specific areas. An example: Elisa product with bundled IPTV services and 100/10 Mbit/s VDSL2 connection.
  • Päijät-Hämeen Puhelin started providing 100/64 Mbit/s VDSL2 subscriptions in 2007 Q1.
  • Nebula started providing VDSL2 pilot subscriptions during June 2007 and is currently offering commercial subscriptions in limited area.
  • Suomi Communication Oy Offers both SHDSL and VDSL2 subscriptions where available.
  • DNA Oy offers symmetric 100/100 Mbit/s VDSL2 connections at least in the Oulu area.
  • TeliaSonera offers VDSL2-based subscriptions in their "Kodin Netti" service, offering rates 1:1 Mbit/s, 10:10 Mbit/s and 100:10 Mbit/s.
  • PPO-Yhtiöt Oy offers VDSL2-based connections at speeds 10/10, 25/10, 50/10.
France
  • Erenis was deploying VDSL1 and VDSL2 (as fiber to the premises) until Neuf Cegetel, later absorbed by SFR, bought the company in April 2007.[15] There was no further VDSL deployment in France because the standard has never been approved by the sole owner of the historical copper local loop (France Télécom). VDSL2 use cases has been evaluated by the DSL tech introduction workgroup.[16] and validated on 26 April 2013.[17] Real test with high amount of real customers has began on some French zones until the first public offer on 2013 Q4.
  • Orange Since 10/01/2013 offer VDSL2-based connections at speeds up to 100/30 Mbit/s (usually between 15 and 50 Mbit/s down).
  • SFR Since 10/01/2013 offer VDSL2-based connections at speeds up to 100/40 Mbit/s.
  • Bouygue Telecom Since 10/01/2013 offer VDSL2-based connections at speeds up to 100/40 Mbit/s.
  • OVH 10/01/2013 offer VDSL2-based connections at speeds up to 92/36 Mbit/s.
  • free Since 10/01/2013 offer VDSL2-based connections at speeds up to 100/40 Mbit/s.
  • All except OVH offer Quadruple play BOX.
Germany
  • Deutsche Telekom offers VDSL2 services with speeds up to 50/10 Mbit/s, based on FTTN in some regions. The 8.832 MHz profile 8b is deployed with band plan 998-M2x-B, the 17.664 MHz profile 17a with band plan 998ADE17-M2x-B.[18] Deployment started in late 2006 with VDSL2 offered in the 12 largest cities in Germany, by 2007 residents in over 50 cities had access to VDSL2.[19] Initially VDSL2 was only available in triple play packages. VDSL2 service without bundled IPTV was introduced in June 2009.[20]
  • Deutsche Telekom plans to launch G.vector based 100/40 Mbit/s service in the second half of 2014.[21] Deployment of G.vector hardware began in 2013.[21] For its G.vector VDSL2 customer premises equipment, Deutsche Telekom has specified mandatory support for profiles 8b and 17a, with optional support for profile 30a.[18]
  • Vodafone (formerly Arcor) and Telefónica Germany (marketed as O2) provide VDSL2 with up to 50/10 Mbit/s through local loop unbundling.
  • 1&1 Internet, Congstar, and easybell offer VDSL2 with up to 50/10 Mbit/s via bit-stream access to the access networks of Deutsche Telekom, Vodafone, and Telefónica Germany.
Gibraltar
  • Gibtelecom Ltd, has been rolling out VDSL2 as from 2012, offering HSI at 20Mbit/s 8Mbit/s and 4Mbit/s.
Guernsey
  • Launched VDSL services October 2011. Sure and JT Global on the Bailiwick of Guernsey are now offering VDSL at max 40 Mbit/s download and max 5 Mbit/s upload speeds, up from the existing 20 Mbit/s / 800 kbit/s ADSL2 service. This is available to customers within 2 km of the exchange.
Greece
Greenland
  • Tele Greenland is running VDSL2 on Ericsson DSLAMs as a part of FTTN, since 2009.
Hungary
  • T-Home is providing VDSL2 in select areas at 30mbit download speed and 5mbit upload speed.
Iceland
  • TSC[disambiguation needed] has been running VDSL on TUT DSLAM since 2002 and is now running VDSL2 on SINO Telcom DSLAM.
  • TSC is believed to be the first company to run VDSL on public telephone lines.
  • Síminn is running VDSL2 on Alcatel-Lucent DSLAM as a part of FTTC.
Isle of Man
  • Launched VDSL services October 2011. Sure:Cable and Wireless and Manx Telecom on the Isle of Man are now offering VDSL at max 40 Mb download and max 2 Mb upload speeds, up from the current 16 Mb/800 kb ADSL2 service. This is available to customers within 2 km of the exchange and will also be available to customers of the other Isle of Man based broadband suppliers such as WiManx.
Italy
  • Telecom Italia planned to provide VDSL2 in Q4 2007. Around December 2008, launched VDSL2 (50:3 Mbit/s) under the name Alice Phibra as a free experiment to few selected customers in the area of Milan.
  • In 2012, Telecom Italia and Fastweb announced a collaboration to use VDSL2 as the last segment in a FTTC architecture. The project sought to provide in 100 cities (20% of the population) a theoretical 400 Mbit/s line within 2014.[24][25]
  • On 5 December 2012 Telecom Italia started offering “Ultra Internet Fibra Ottica” at 30 Mbit/s via FTTCab architecture. Initially in three cities: Rome, Turin and Naples.[26]
  • On the 5 March 2013 Fastweb launched their VDSL2-based service. Customers get 20/10 Mbit/s as base offer, and can be upgraded to 100/10 with a small premium.
Ireland
  • eircom has a fibre to the cabinet offering called eFibre, which since the launch of vectoring in February 2014 offers up to 100 Mibts/sec down, 20 Mbit/s up to the customer.[27] at prices ranging from EUR 30.00 to EUR45.00 for residential customers. The price includes voice telephone services. Details of wholesale offering, available to other telecommunications carriers: http://www.eircomwholesale.ie/Products/Broadband/Next_Generation_Access/
Luxembourg
  • Post Luxembourg has offered a 30 Mbit/s down, 10 Mbit/s up VDSL2 service since 2011. As of mid-2014, offerings also include 100 Mbit/s down, 50 Mbit/s up over bonded VDSL2, and faster services using FTTK or FTTP.[28] Alternative providers, including Luxembourg Online, Orange and Tango offer similar products.
Netherlands
  • KPN has been offering a FttC VDSL2 service since 2009 and VDSL-CO ("Central Office") since 2010. KPN will offer VDSL-BR ("Buiten Ring", Outer Ring) starting from Q2 2011. KPN is offering VDSL both retail and wholesale. In 2014 KPN start offering vectoring for new customers with speeds up to 80 Mbit/s down and 8 Mbit/s up are reported.
  • KPN subsidiaries XS4All and Telfort also offer VDSL2 to their customers.
  • Tele2 started offering VDSL2 under the FiberSpeed name in 2009.
  • BBned, now a Tele2 subsidiary, started offering VDSL2 in 2010.
Norway
  • NextGenTel offers VDSL2 nationwide.[29]
  • Telenor offers VDSL2 nationwide.[30]
  • Netpower provide VDSL2 in the cities Oslo, Bergen, Stavanger, and Sandnes.
  • Noraxess provides VDSL2 in cities around Helgeland. With speeds up to 50/20 Mbit/s.
  • PowerTech provides VDSL2 in Oslo and Akershus.
  • StayOn provides VDSL2 and VDSL2 bonding in Møre og Romsdal.
Poland
  • Orange Polska provides VDSL2 with speeds up to 80/8 Mbit since July, 2011.
  • Netia provides VDSL2 at 50/5 Mbit/s since December, 2010.
Portugal
  • Clix (ISP) and Portugal Telecom are planning to provide VDSL2 + FTTH in the end of 2008, new technology of PTInovação (PT Labs) called uMSAN48v can provide up to 100 Mbit/s.
Romania
  • Romtelecom are now offering VDSL2 at 20 Mbit/s and 30 Mbit/s. They were planning to provide VDSL2 in the beginning of 2011 with 50 Mbit/s and 100 Mbit/s speed in 50 cities; in Romtelecom to reach new deals to offer 50 Mbit/s and 100 Mbit/s;
Serbia
Slovakia
  • Slovak Telekom provides VDSL2 to customers since September, 2013 with speeds up to 50/5 Mbit/s.[33]
Slovenia
  • AMIS is providing VDSL2 to corporate customers since 2013.
  • TušTelekom is providing VDSL2 to enterprises.
  • Telekom Slovenije is providing VDSL2 since March 5, 2007 to its customers.
  • T-2 is providing VDSL2 to customers since May 2007 and it offers speeds up to 60/25 Mbit/s on copper phone lines.
Spain
  • Movistar tested the deployment of VDSL2 and they were planning to provide VDSL2 in 2007 or 2008 start, but its commercial deployment was delayed until 2009.[34] Their VDSL2 offer consists of a 30Mbit/s access with an upload capacity of 1Mbit/s.
  • Jazztel Introduced VDSL2 in April 2010.[35] Currently it has finished the deployment of the technology on its network and is offering 30 Mbit/s over VDSL2 with an upstream rate of 3.5 Mbit/s.[36]
Sweden
  • Telenor and Telia are negotiating a joint venture to deploy the VDSL2 infrastructure at a cost of 10 billion Swedish kronor.[37]
  • Bredbandsbolaget started conducting VDSL2 tests October 2005, Bredbandsbolaget is now a part of Telenor.[38]
  • On March 13, 2008 TeliaSonera announced it would start deploying VDSL2.[39] Telia are talking about 30 to 70 Mbit/s in downstream.
  • On March 18, 2008, Bredbandsbolaget announced it would start deploying VDSL2 on March 25, 2008.[40] BBB is now offering VDSL2 at 60:20 Mbit/s for customers closer than 800 meters to the telephone station and 40/10 for customers who have between 800 and 1500 meters.
Switzerland
  • Swisscom is deploying VDSL2 and it is now available to customers since July 1, 2007. Since December 2006 it is in use for IPTV.
Turkey
  • TTNet provides VDSL2 service in 20 Mbit/s, 35 Mbit/s, 50 Mbit/s and 100 Mbit/s.
  • Milleni.com (Doping Internet) provides VDSL2 service in 24 Mbit/s, 35 Mbit/s, 50 Mbit/s and 100 Mbit/s.
  • Turkcell Superonline used to provide VDSL2 service in 10 Mbit/s, 20 Mbit/s, 50 Mbit/s and 100 Mbit/s.
United Kingdom BT Group trialled VDSL2 in the Muswell Hill, London and Whitchurch, Cardiff Exchanges starting in July 2009. On 23 March 2009, they announced plans to deploy the service to 29 exchanges throughout England, Wales, Scotland and Northern Ireland.[41] On 9 July 2009, they announced plans to deploy the service to a further 69 exchanges throughout the UK by the summer of 2010.[42]

May 2010 BT announced £2.5 billion plans to roll out a mixture of VDSL2 FTTC (75%) and GPON FTTP (25%) to 66% of the UK by 2015 with VDSL2 speeds starting at 40 Mbit/s down 10 Mbit/s up potentially rising to 60 Mbit/s down 15 Mbit/s up.[43] In October 2011, BT announced that this roll-out was being accelerated such that it will be completed by 2014 (one year earlier than originally planned).[44] April 2012 BT to introduce new product download speeds of up to 80Mbit/s down and 20Mbit/s up on its VDSL2 network. This has been achieved by increasing ANFP spectrum usage to 17 MHz. BT announce FTTP On Demand - a GPON based service to extend the fibre overlay in FTTC areas direct to the home to subscribers willing to pay (install costs not yet announced expected to be in high hundreds of pounds).

On 8 October 2009, it was revealed that Virgin Media will trial VDSL2. Residents of Higher Pill, in Saltash, and nearby Hatt will be offered free broadband via a VDSL2 line to a roadside cabinet. The cabinets will be linked to Virgin Media backhaul via new fibre laid by Vtesse Networks through BT's local exchange, 5 km away.[45] The trial eventually resulted in Vtesse networks running the final service without Virgin Media's involvement under their own brand on 1 October 2010.

Digital Region Ltd, an EU government-backed project formed by the four main councils in South Yorkshire – Sheffield, Rotherham, Doncaster and Barnsley, along with the Regional Development Agency, Yorkshire Forward, have rolled out VDSL2 services to over 80% of the county. The infrastructure consists of 1360 FTTC nodes (fibre to the cabinet) connected to over 1200 km of both new and existing fibre-optic cable. The service is delivered utilising the sub loop unbundling product (SLU)from BT Openreach to provide the last-mile connection to the consumer via existing copper. The network initially offered up to 40 Mbit/s downstream and up to 10 Mbit/s upstream with an assured level of service. It is already capable of delivering speeds of 70Mbit/s down/30Mbit/s up using the 17a spectrum profile, and it was announced in May 2012 this will increase to 100 Mbit/s down and 30 Mbit/s up in the future. There are a number of ISP's currently interconnected to the network (Ask4, Digital City, Fluidata, LittleBigOne and Origin Broadband) offering residential, business and wholesale connectivity services.

Origin Broadband joined the Digital Region network in January 2011. They were the first ISP to specifically advertise uncapped, unlimited, up to 40Mbit broadband, to residential customers on the Digital Region network. On April 18, 2012 it was announced they will be increasing their offering to include an "up to 100Mbit down, 30Mbit up" package, still with no limits on usage, in May 2012.

LittleBigOne also joined the network in 2011, offering 40Mbit/s VDSL services, including the first UK IPTV over VDSL service, which launched in early 2012. They will also be offering an "up to 100Mbit" service starting in May 2012.[dated info]

On 14 April 2010, Rutland Telecom announced that it is to deliver broadband speeds up to 40 Mbit/s using a fibre to the cabinet solution in the Welsh notspot village of Erbistock. The initiative, backed by private investment, will be the first time that VDSL2 technology has been used in a Welsh rural village.[46]

Asia[edit]

Bahrain Lightspeed Communication announced that they will begin deploying VDSL2 technology for residential and business customers in 2012. Downstream speed will be up to 80 Mbit/s.[47] The service is yet to launch as of July 2013.
Hong Kong PCCW Limited (Netvigator) and Hutchison Global Communications (HGC) have deployed VDSL2 technology to serve residential and business customers since 2008. Netvigator provides up to 100 Mbit/s downstream and 30 Mbit/s upstream broadband service in VDSL2,[48] while HGC asserts that to provide up to 100 Mbit/s downstream and 100 Mbit/s upstream service.[49] However, due to equipment technical difficulties, HGC connection is pretty unstable.[citation needed] HGC is able to provide both 50 Mbit/s downstream and upstream in most districts of the coverage.
India MTNL has deployed VDSL technology in Mumbai and offers up to 20 Mbit/s downstream.

Airtel has announced 50 Mbit/s Plans using VDSL2.[50]

Israel Bezeq has deployed FTTx with VDSL2 with brand name NGN in September 2009 offering speeds of 20 and 30 Mbit/s downstream and 1 Mbit/s upstream.[51] In October 2010 Bezeq has deployed 50 and 60-100 Mbit/s downstream speeds and limited upstream speeds of up to 1 Mbit/s.In April 2012 Bezeq has limited upstream speeds to 1.5 Mbit/s. In the beginning of 2013 Bezeq will deploy 200 Mbit/s downstream speed using two copper pairs bonding.
Macau CTM start to test VDSL2 at the 3rd season of 2007. First will be tested in two main buildings in Macau.
Malaysia Telekom Malaysia deployed FTTx and VDSL2 with brand name UniFi in March 2010 offering symmetrical speeds of 5, 10 and 20 Mbit/s.
Pakistan PTCL is the first service provider worldwide to deploy a commercial VDSL2 Bonding solution and offers speed up to 50 Mbit/s - The highest speed offered by any Internet Service Provider in the country.Sky Telecom is also VDSL service provider in AJK. It also deploy fiber network for commercial users.
Saudi Arabia Saudi Telecom Company (STC) The Largest Operator in Middle East launched VDSL2 service in December 2011 offering various speed packages including 40 Mbit/s Downstream and 10 Mbit/s Upstream to provide Triple-play services including High-Speed Internet (HSI), IPTV (SD and HD) and VoIP from single VDSL CPE with built-in Wi-Fi. This complements STC's existing ADSL2+ installed base which already offers download speed of up to 20 Mbit/s as part of Fixed Broadband Access (FTTx) Network
Singapore SingTel tied up with Ericsson to deploy a technical trial of VDSL2 starting June 2006. However, no service plans announced yet and SingTel is preferring FTTH over VDSL2.
Sri Lanka Sri Lanka Telecom announced the soft launch of its VDSL2 advanced fixed broadband technology on May 2013 and is planning to expand the service in the near future.[52]
Taiwan October 2007, Chunghwa Telecom (CHT) has awarded ZyXEL Communications to provide VDSL2 equipments (DSLAM and CPE) for its "Next Generation Access Network" project. The project involves 340-thousand lines and will provide high speed Triple play services to these subscribers.
Thailand
  • July 2010, True Online by True Corporation has released the Ultra Hi-Speed Internet . The first VDSL2 commercial services with the services is up to 50 Mbit/s downstream and up to 20 Mbit/s upstream.
  • 3BB by Tripple T has deployed VDSL2 Internet Solutions, offering VDSL2 Internet services is up to 50 Mbit/s downstream and up to 20 Mbit/s upstream.

North America[edit]

Canada
  • SaskTel, a crown corporation of the province of Saskatchewan, has officially announced the deployment of VDSL2. SaskTel is using VDSL2 to increase the amount of bandwidth to its customers, allowing more HDTV streams with its MAX Entertainment Service. The extra bandwidth also allows SaskTel to offer their "Ultra" service providing 25 Mbit/s download and 2 Mbit/s upload to non-IPTV customers.
  • Bell Canada is currently offering VDSL2 in some areas of Ontario and Quebec with speeds reaching 50 Mbit/s download and 10 Mbit/s upload, marketed as Bell Fibe Internet, or part of the Bell Fibe TV package. For Fibe TV distance from cabinet to receiver must be equal to or less than 900 meters. Bell originally deployed Lucent Stinger remote SLAMs which did not conform to ITU G.993.2 spec and as a result is not compatible with standard VDSL2 modems and requires a custom firmware from modem vendors. Bell has recently started to deploy Alcatel-Lucent 7330 remote SLAMs which do conform to ITU G.993.2 spec and customers served on those are able to use standard VDSL2 modems.
  • TELUS is offering VDSL2 in a large percentage of its footprint in British Columbia and Alberta with speeds reaching 25 Mbit/s download and 5 Mbit/s upload, marked as TELUS High Speed Turbo 25 (on the 8b profile), or part of a TELUS Optik TV package. The 17A profile is now being deployed everywhere with a 50Mbit/s download and 10Mbit/s maximum upload. If the residence does not qualify for the 17A profile then they are also deploying a pair bonding solution if the address has two available cable pairs using the Actiontec V2000H router. Both services (pair bonding and single pair) are marketed as High Speed 50 or Optik 50.[53][54] TELUS is the third company in the world to deploy a commercial VDSL2 Bonding solution and to offer speeds up to 50 Mbit/s.
  • Lightspeed is offering VDSL2 in a large percentage of its footprint in British Columbia and Alberta with speeds reaching 50 Mbit/s download and 10 Mbit/s upload, where supported.[55]
  • MTS, Manitoba Telephone Services operating in the province of Manitoba, Offers VDSL2 in multiple communities. Company claims "65 per cent of Manitoba households will have access to very high-speed Internet delivered by FTTH or VDSL technology." [56]
Mexico
  • As of February 2012, Telmex has announced plans to partner with Alcatel-Lucent to deploy VDSL2 in multiple cities and ultimately serve millions of customers.[57]
USA
  • AT&T has deployed Alcatel-Lucent VDSL2 equipment (video-ready access devices) in street cabinets as a part of its U-verse service in fiber to the node (FTTN) based service. Currently there are no plans to convert to a fiber to the curb (FTTC) setup and that FTTN will continue to be used. iNIDs or the Motorola NVG 589 gateway are used in a pair-bonding setup to extend the reach of their FTTN configuration.
  • CenturyLink — formerly Qwest, Embarq, and CenturyTel — is currently expanding its VDSL2 network. It currently offers the technology in the Denver, Fort Collins, Colorado Springs, Omaha, Phoenix, Flagstaff, Seattle, Boise, Albuquerque and Farmington, NM, St George/Salt Lake City, UT, Portland, OR, Fargo, ND, St. Paul/Minneapolis and the Wake Forest, NC (VDSL2 8A) areas. Some areas currently have VDSL2 service up to 80 Mbit/s downstream and 40 Mbit/s upstream. They are also currently rolling out VDSL2 equipment along with MPEG-4 TV service to Columbia, MO, Winter Park, FL, Wake Forest, NC and Las Vegas, NV for its Prism IPTV service. They are upgrading their existing service in La Crosse, WI in 2010.
  • BellSouth had planned to roll out VDSL2 to its customers prior to its acquisition by AT&T. Many of those markets have since been included in the U-verse rollout.
  • Sonic.net is in the process of upgrading some customers in San Francisco to VDSL2.[58]

Central America and the Caribbean[edit]

Dominican Republic Claro offers speeds ranging from 1Mbit/s down and 256kbit/s up to 50Mbit/s down and 2Mbit/s up. The upgrade to VDSL2 was required to provide enough bandwidth for the company's IPTV, data, and voice services all running on their POTS network.

South America[edit]

Argentina IPLAN Telecomunicaciones is beginning to deploy Allied Telesis VDSL2 equipment to replace old LRE Cisco equipment among their 10K customers in Buenos Aires.
Brazil GVT is using Zhone Technologies, Inc. Equipment to provide VDSL2 service to Belo Horizonte, Salvador, Brasília, Curitiba, Goiânia, Porto Alegre, Caxias do Sul, Campina Grande, Recife, Fortaleza, and other medium and small cities.[59]

In Caxias do Sul residential service package speeds vary from: download 5 Mbit/s to 100 Mbit/s and upload from 0.75 Mbit/s to 10Mbit/s [60]

Sercomtel has deployed a new VDSL2+ network on Londrina city. Reaches speed up to 30Mbit/s on downstream, and 15Mbit/s upstream.

TIM has launched their VDSL2 service in some locations from São Paulo and Rio de Janeiro, also known as "TIM Live". Two packages are available, 35Mbit/s on downstream (20Mbit/s upstream) and 50Mbit/s on downstream (30Mbit/s upstream).

Chile Movistar is beginning to deploy Huawei VDSL2 equipment to some sectors in the city of Santiago.

Africa[edit]

South Africa Telkom SA is in the early stages of trialing VDSL2 enabled MSAN exchanges, with target speeds of 10, 20, 40Mbit/s download.[61] It is planned that there should be a full replacement of all current DSLAM's with the new MSAN cabinet units, enabling a shorter local loop. The trialing will begin in August 2012 However Roll-outs have stopped in October 2013, and has of yet not started in 2014.[62]

Oceania[edit]

Australia
  • As of December 2008, iiNet is trialing VDSL2 in a FTTB (Fibre To The Building) deployment to residential apartment blocks with a view to further deployments in 2009.
  • Private network deployment of VDSL2 has been occurring since 2007 in apartment blocks using Zyxel based product across Australia.
  • In 2009, TransACT commenced greenfield roll-out for MDU and upgrade of existing VDSL access network to VDSL2, utilising Ericsson EDAs.
  • In 2010, Adam Internet deployed a VDSL2 network available to residents at The Precinct.
  • In 2010, Apex Internet commenced a greenfield roll-out for MDU and gated communities.
  • In 2013 TPG Telecom announced intention to build an FTTB network covering around 500,000 premises.[63]
  • In 2014, the Australian Government mandated that the National Broadband Network (NBN) should include Vectored VDSL2 as part of the technology mix (in addition to GPON, Fixed Wireless, Satellite and HFC). NBNCo began FTTB and FTTN trials in 2014 with commercial services planned for 2015.
New Zealand
  • TelstraClear (now Vodafone NZ) has begun offering VDSL2 through 140 cabinets on its own Next IP Network in seven city centres. The VDSL2 service is currently available in business districts of Wellington, Hamilton, Tauranga, Napier, Wanganui, New Plymouth, Lower Hutt, and parts of Auckland, offering download speeds up to 30 Mbit/s and upload speeds up to 7 Mbit/s. TelstraClear plans to expand coverage by Christmas 2008 to Dunedin, Palmerston North, Christchurch, Auckland, North Shore, Manukau and Waitakere.
  • Orcon signed a NZ$30 million deal with Siemens to roll out VDSL2 in 2008. Orcon's network will cover Auckland, Christchurch, Wellington, Hastings, Napier, Tauranga, Hamilton, Dunedin, Nelson and New Plymouth with "packages of broadband, video services, internet television and a phone line for $50 to $60 a month.".[64] As of January 2014, they offer ADSL2+, FTIH and VDSL2.
  • Telecom NZ and Vodafone NZ were also testing VDSL2, but were waiting for an agreement on ways to handle interference before deploying it alongside other equipment in Telecom exchanges.
  • Vodafone NZ announced in May 2008 that VDSL2 will be offered in the Auckland area, with availability taking place as each exchange was unbundled. Full Auckland coverage was expected by the end of 2008,[65] but was not launched until January 2014 [66]
  • The wholesale division of Telecom NZ has commenced laboratory testing of VDSL2 technology. If successful VDSL2 is likely to augment its current ADSL2+ capabilities over time, especially where unbundled loop lengths are short enough (approx 1 km) to benefit from the increased speeds.[67]
  • On 30 January 2009 Telecom NZ announced its roll out of VDSL2 coverage.[68] The rollout commenced in Sept 2010.
  • SNAP! launched their VDSL plans on 9 July 2013.[69]
  • Telecom NZ announced retail VDSL plans on 13 July 2013.[70]
  • As of 26/6/14 VDSL speeds are 30Mbit/s - 70Mbit/s downstream and 5Mbit/s - 10Mbit/s Upstream.

See also[edit]

References[edit]

  1. ^ a b c "New ITU Standard Delivers 10x ADSL Speeds: Vendors applaud landmark agreement on VDSL2". News release (International Telecommunication Union). 27 May 2005. Retrieved 22 September 2011. 
  2. ^ "ITU-T Recommendation G.993.2: Very high speed digital subscriber line transceivers 2 (VDSL2)". Retrieved 22 September 2011. 
  3. ^ "Tyrone Fabrication Ltd, Eircom VDSL". Retrieved 8 March 2012. 
  4. ^ tsbmail (2013-06-14). "G.993.5 : Self-FEXT cancellation (vectoring) for use with VDSL2 transceivers". Itu.int. Retrieved 2013-07-04. 
  5. ^ http://www.ericsson.com/res/thecompany/docs/journal_conference_papers/broadband_and_transport/itu-ts_new_g_vector_standard_proliferates_100mbs_dsl.pdf
  6. ^ "Home | A1.net" (in German). Unternehmen.telekom.at. Retrieved 2013-07-04. 
  7. ^ "Obecná diskuse - Diskuze o připojení k internetu". DSL.cz. Retrieved 2013-07-04. 
  8. ^ 22. dubna 2011. "O2 zrychlí internet. Dvakrát rychlejší VDSL získá polovina domácností - iDNES.cz". Mobil.idnes.cz. Retrieved 2013-07-04. 
  9. ^ "Telefónica bude zrychlovat VDSL až na 40 Mbit/s". Lupa.cz. Retrieved 2013-07-04. 
  10. ^ http://www.ocecpr.org.cy/media/documents/PublicConsultations/ElectronicCom/EC_DraftDecision_AmendAnfp_Gr_15-05-2012_VM.doc
  11. ^ TDC indfører 50 Mbit/s bredbånd (Danish), TDC Press release.
  12. ^ 3. kvartal 2006: Øget indtjening og vækst (Danish), Cybercity Press release.
  13. ^ Posted by Fullrate on 16.09.2009 08:00 (2009-09-16). "Turbo til dit bredbånd". Fullrate.dk. Retrieved 2013-07-04. 
  14. ^ Official Fullrate Customer Forum (Danish)
  15. ^ ARIASE. "Neuf Cegetel announcement of taking control over Erenis". Ariase.com. Retrieved 2013-07-04. 
  16. ^ http://www.arcep.fr/uploads/tx_gspublication/201106-Recommandation-montee-en-debit.pdf
  17. ^ http://www.arcep.fr/fileadmin/reprise/dossiers/degroup/avis-DEX130426-VDSL2.pdf
  18. ^ a b "Technical description of VDSL2". 1TR112: Technical Specification of the U-Interfaces of xDSL Systems in the network of Deutsche Telekom, Version 12.2. Deutsche Telekom AG. February 2014. Retrieved 2014-02-25. 
  19. ^ "Auch RTL flimmert über das VDSL-Netz" [RTL now broadcasting on VDSL network] (in German). Heise.de. 2006-08-23. Retrieved 2013-07-04. 
  20. ^ de:Very High Speed Digital Subscriber Line#VDSL2 in Deutschland
  21. ^ a b Neuhetzki, Thorsten (2013-11-18). "Telekom: Erste Städte "ready" für schnelles Internet mit 100 MBit/s" [First cities are "ready" for speedy 100 MBit/s Internet] (in German). teltarif.de. Retrieved 2014-02-18. 
  22. ^ "O OTE ανακοίνωσε τις τιμές χονδρικής του VDSL2 στους εναλλακτικούς παρόχους" (in Modern Greek). Adslgr.com. Retrieved 2013-07-04. 
  23. ^ a b "Πρεμιέρα στο πιο γρήγορο Ιντερνετ - Οικονομία - Επικαιρότητα - Τα Νέα Οnline". Tanea.gr. Retrieved 2013-07-04. 
  24. ^ (Italian)http://www.repubblica.it/economia/finanza/2012/09/14/news/accordo_tra_telecom_e_fastweb_per_la_diffusione_della_banda_ultra_larga-42528735
  25. ^ (Italian)http://www.repubblica.it/tecnologia/2012/09/15/news/banda_larghissima_fastweb_vdsl-42571665
  26. ^ Telecom Italia Press Release of the 4th of December 2012, Telecom Italia corporate website
  27. ^ "eircom eFibre". eircom.ie. 
  28. ^ "Surf at the speed of light with LuxFibre internet!". post.lu. Retrieved 2014-08-06. 
  29. ^ [1][dead link]
  30. ^ "Superbredbånd til 1 million nordmenn (FOTO) - Newswire". Newswire.no. 2011-01-17. Retrieved 2013-07-04. 
  31. ^ "Open HOME | Novo! Net brzine". Open.telekom.rs. Retrieved 2013-07-04. 
  32. ^ "Open HOME | Upload Booster". Open.telekom.rs. Retrieved 2014-01-25. 
  33. ^ "Telekom announces new VDSL offer (Slovak)". Zive.sk. Retrieved 2013-08-05. 
  34. ^ Movistar lanza Movistar TV en Alta Definición con tecnología VDSL2 (Spanish), adslzone.tv.
  35. ^ "VDSL 30 megas de Jazztel disponible desde hoy por 39,90 € (Spanish)". Bandaancha.eu. Retrieved 2013-07-04. 
  36. ^ "Jazztel aumenta a 3,5 Mbps la subida del VDSL y baja el precio 8 € (Spanish)". Bandaancha.eu. 2010-12-08. Retrieved 2013-07-04. 
  37. ^ Snart klart för blixtbredband (Swedish), IDG.se.
  38. ^ Telenor Buys Nordic Internet Companies for $1.06 Bln (Update4), Bloomberg.
  39. ^ TeliaSonera storsatsar på snabbare bredband i Sverige (Swedish), TeliaSonera.
  40. ^ Bredbandsbolaget lanserar turbo-dsl (Swedish), Ny Teknik.
  41. ^ BT Openreach: GEA over FTTC roll - out announcement[dead link]
  42. ^ "BT Press Release: BT speeds up super-fast-fibre plans". Btplc.com. Retrieved 2013-07-04. 
  43. ^ "BT expands super-fast broadband network". BBC News. 13 May 2010. Retrieved 26 November 2011. 
  44. ^ "BT fibre broadband cable UK rollout accelerated". BBC News. 31 October 2011. Retrieved 26 November 2011. 
  45. ^ Williams, Christopher (2009-10-09). "Virgin Media to trial IPTV off-cable network". Theregister.co.uk. Retrieved 2013-07-04. 
  46. ^ "Rutland Telecom to enable Welsh notspot of Erbistock". thinkbroadband. 2010-04-14. Retrieved 2013-07-04. 
  47. ^ "Technology success for Lightspeed". 2011-11-17. Retrieved 2013-12-31. 
  48. ^ http://promo.netvigator.com/eng/
  49. ^ "3家居寬頻 | 固網服務 | 寬頻新登記| 網上續約 | 1G光纖入屋". Hgcbroadband.com. 2010-07-24. Retrieved 2013-07-04. 
  50. ^ "Airtel to offer 50Mbps Internet speed in Delhi for Rs 8,999". Hindustan Times. Retrieved 2013-07-04. 
  51. ^ "מסלול NGN מחיר קבוע - בזק". Bezeq.co.il. Retrieved 2013-07-04. 
  52. ^ "SLT’s 100Mbps super-fast broadband internet goes live in Sri Lanka.". Sri Lanka Telecom PLC. Retrieved 23 May 2013. 
  53. ^ 50Mbit options appear when you use qualified address at https://www.telus.com/order/services/order.form
  54. ^ "À propos de TELUS". About.telus.com. 2011-11-14. Retrieved 2013-07-04. 
  55. ^ http://lightspeed.ca/personal/ratesadsl.html#table
  56. ^ http://www.mts.ca/file_source/mts.ca/About%20MTS%20Allstream/AGM2011CEORemarksFINAL.pdf
  57. ^ "Alcatel-Lucent Selected by Telmex...". PR Newswire. Retrieved 16 February 2012. 
  58. ^ "Topic: Will Sonic upgrade DSLAMs to VDSL2? (if not already done)". 
  59. ^ List of cities with availability (Port.) The actual service speed reaches 50 Mbps x 5 Mbps
  60. ^ List of packages available for purchase Package availability may change from time to time.
  61. ^ "Telkom 20Mbps and 40Mbps DSL network plans". Mybroadband.co.za. 2011-08-21. Retrieved 2013-07-04. 
  62. ^ "Telkom 40Mbps VDSL pilot timeline and locations revealed". Mybroadband.co.za. 2012-03-28. Retrieved 2013-07-04. 
  63. ^ http://delimiter.com.au/2013/09/17/screw-nbn-says-tpg-well-fttb/
  64. ^ Keown, Jenny (16 January 2007). "New-era broadband faster but no cheaper". The New Zealand Herald. Retrieved 26 November 2011. 
  65. ^ Fairfax Media Business Group (2008-05-28). "Vodafone to announce $50 million LLU investment". Computerworld. Retrieved 2013-07-04. 
  66. ^ Scoop NZ (2014-01-23). "Vodafone launches faster VDSL broadband". 
  67. ^ "Telecom testing high-speed broadband". The Dominion Post. 26 May 2008. Retrieved 26 November 2011. 
  68. ^ "Telecom's announces roll-out of super-fast internet". sharechat.co.nz. 2009-01-30. Retrieved 2013-07-04. 
  69. ^ Telecompaper (13 June 2013). "Snap launches VDSL2 plans". 
  70. ^ Telecom launches VDSL turbocharged copper broadband

External links[edit]