Light Reading

Alcatel-Lucent Claims Copper Speed Record

Light Reading
News Wire Feed
Light Reading
7/9/2014
50%
50%

PARIS -- Bell Labs, the research arm of Alcatel-Lucent (Euronext Paris and NYSE: ALU), has set a new broadband speed record of 10 gigabits-per-second (Gbps) using traditional copper telephone lines and a prototype technology that demonstrates how existing copper access networks can be used to deliver 1Gbps symmetrical ultra-broadband access services.

Achieving 1 Gbps 'symmetrical' services – where bandwidth can be split to provide simultaneous upload and download speeds of 1 Gbps – is a major breakthrough for copper broadband. It will enable operators to provide Internet connection speeds that are indistinguishable from fiber-to-the-home services, a major business benefit in locations where it is not physically, economically or aesthetically viable to lay new fiber cables all the way into residences. Instead, fiber can be brought to the curbside, wall or basement of a building and the existing copper network used for the final few meters.

The Bell Labs tests used a prototype technology called XG-FAST. This is an extension of G.fast technology, a new broadband standard currently being finalized by the ITU. When it becomes commercially available in 2015, G.fast will use a frequency range for data transmission of 106 MHz, giving broadband speeds up to 500 Mbps over a distance of 100 meters. In contrast, XG-FAST uses an increased frequency range up to 500 MHz to achieve higher speeds but over shorter distances. Bell Labs achieved 1 Gbps symmetrical over 70 meters on a single copper pair. 10 Gbps was achieved over a distance of 30 meters by using two pairs of lines (a technique known as “bonding”). Both tests used standard copper cable provided by a European operator.

Marcus Weldon, President of Bell Labs: “Our constant aim is to push the limits of what is possible to ‘invent the future’, with breakthroughs that are 10 times better than are possible today. Our demonstration of 10 Gbps over copper is a prime example: by pushing broadband technology to its limits, operators can determine how they could deliver gigabit services over their existing networks, ensuring the availability of ultra-broadband access as widely and as economically as possible.”

Commenting on the achievement, Federico Guillén, President of Alcatel-Lucent’s Fixed Networks business said: “The Bell Labs speed record is an amazing achievement, but crucially in addition they have identified a new benchmark for ‘real-world’ applications for ultra-broadband fixed access. XG-FAST can help operators accelerate FTTH deployments, taking fiber very close to customers without the major expense and delays associated with entering every home. By making 1 gigabit symmetrical services over copper a real possibility, Bell Labs is offering the telecommunications industry a new way to ensure no customer is left behind when it comes to ultra-broadband access.”

Technical background information
The primary factors influencing broadband speeds over copper are:

  • Distance: the longer the copper connection between the access node and the customer’s telephone socket, the slower the broadband speed. This is dictated by attenuation.
  • Frequency: the wider the frequency range, the faster the broadband speed that can be achieved. The Shannon Limit dictates the maximum possible speed for a given medium and frequency spectrum.
  • Higher frequencies attenuate more quickly than lower frequencies, meaning there are diminishing returns in speed as the frequency range increases.

    During testing, Bell Labs showed that XG-FAST technology can deliver 1 Gbps symmetrical services over 70 meters (for the cable being tested). This was achieved using a frequency range of 350 MHz. Signals at higher frequencies were completely attenuated after 70 meters.

    In practical situations, other significant factors that can influence actual speeds (not taken into account during these tests but which have been studied extensively elsewhere) include the quality and thickness of the copper cable and cross-talk between adjacent cables (which can be removed by vectoring).

    Alcatel-Lucent (NYSE: ALU)

    (1)  | 
    Comment  | 
    Print  | 
  • Newest First  |  Oldest First  |  Threaded View
    rradina
    50%
    50%
    rradina,
    User Rank: Light Beer
    7/9/2014 | 9:53:31 AM
    Wireless Anyone?
    At such short distances, couldn't low density suburban settings use some form of WiFi?  I'd really prefer the cable company use WiFi from the pedestal instead of incurring the cost of replacing the line everytime someone complains about problems with their service.  Trying to transmit 500mhz over UTP would seem just inviting lots of new runs from the curb just like the cable companies do with their coax.
    Flash Poll
    From The Founder
    Networks of the future will rely on "white box" switches and servers rather than proprietary hardware and that's going to alter the shape of the communications industry. Who says so? John Chambers.
    LRTV Huawei Video Resource Center
    Huawei's Power Play With GrupoGiro

    4|1|15   |   2:51   |   (0) comments


    Daniel Heredia, CEO of Energiro, the power management services part of Spain's Grupo Giro, explains why his company has just struck a partnership with Huawei for uninterruptible power supply products and how he hopes it can take the partnership into other markets.
    LRTV Huawei Video Resource Center
    Huawei Intros Smart Device for eLTE

    3|30|15   |   05:25   |   (0) comments


    Huawei has developed a secure, location-aware multimedia smartphone for its eLTE trunked radio solution, says Huawei's Norman Frisch.
    LRTV Huawei Video Resource Center
    Win Video, Win All

    3|30|15   |   06:44   |   (0) comments


    Video is going to be the next main source of revenue for operators. Operators have big opportunities and advantages to monetize video services. Globally, Huawei has helped more than 70 operators achieve over 30 million video subscribers. Watch this video for more.
    LRTV Custom TV
    The Benefits of HyperScale Clouds for NFV

    3|27|15   |   01:50   |   (0) comments


    Hyperscale cloud has been developed by the Internet giants to support the creation and delivery of software-based services at blistering speeds, and at the lowest possible cost. The original ETSI NFV vision was to adopt hyperscale cloud architecture and practices. This vision has become somewhat obscured along the way, due to misunderstandings about the hyperscale ...
    LRTV Huawei Video Resource Center
    eLTE Rapid Meets the Need for Speed

    3|26|15   |   4:45   |   (0) comments


    Designed especially for emergency and dedicated ad hoc local mobile communications coverage, Huawei's eLTE Rapid solution can deliver trunked voice, video and data coverage for multiple users over a 6km range and be set up in just 15 minutes, explains Huawei's Norman Frisch.
    LRTV Huawei Video Resource Center
    On Videos: Challenges & Opportunities

    3|26|15   |   5:56   |   (0) comments


    Most everything is now connected. And along with 4K and 4G technologies, everyone could be creating and broadcasting video contents. Users are expecting better video experience with any screen, anywhere and anytime. Operators will meet new challenges, but also see some big opportunities.
    LRTV Custom TV
    JDSU: Delivering Dynamic Networks for a Personalized Experience

    3|26|15   |   5:59   |   (0) comments


    Light Reading speaks to JDSU at Mobile World Congress 2015 about new solutions in the areas of HetNets, VoLTE, backhaul, virtualization, big data analytics, and real-time intelligence.
    LRTV Custom TV
    Smarter Service Chaining & New Ways to Benefit From Qosmos Technology

    3|25|15   |   03:11   |   (0) comments


    David Le Goff, director of strategic and product marketing at Qosmos, explains how the company has added application awareness to subscriber information to make service chaining more efficient and reduce costs for networking and infrastructure. In addition, Qosmos technology, which has been delivered as C libraries, is now also available as a virtual machine, ...
    Between the CEOs
    Qosmos CEO: The Changing Face of DPI

    3|24|15   |   13:53   |   (0) comments


    LR CEO and Founder Steve Saunders sits down with the head of Qosmos to talk about the changing state of the art in deep packet inspection technology, including its role in SDN and NFV architectures. Also, how the comms market is becoming more like the automotive industry.
    LRTV Huawei Video Resource Center
    FC Schalke Scores With Its Agile Stadium

    3|24|15   |   6:23   |   (0) comments


    Top German soccer club FC Schalke 04 has deployed a new, agile WiFi network from Huawei in its Veltins-Arena stadium and is reaping the benefits in terms of customer satisfaction and business opportunities, explains marketing chief Alexander Jobst.
    LRTV Huawei Video Resource Center
    Huawei’s Insights on Mobile Video

    3|24|15   |   7:51   |   (0) comments


    More people than ever are now watching videos on smartphones. Seventy percent of mobile traffic will be video traffic until 2018. In this video, Huawei's exports give their insights on mobile video in terms of business model, network planning and 4G network construction.
    LRTV Documentaries
    The Rise of Industry 4.0

    3|24|15   |   02:26   |   (9) comments


    Are you ready for the fourth industrial revolution? It's a big deal for influential operators such as Deutsche Telekom.
    Upcoming Live Events
    April 14, 2015, The Westin Times Square, New York City, NY
    May 5, 2015, Hyatt McCormick Place, Chicago, IL
    May 6, 2015, Georgia World Congress, Atlanta, GA
    May 12, 2015, Grand Hyatt, Denver, CO
    May 13-14, 2015, The Westin Peachtree, Atlanta, GA
    June 8, 2015, Chicago, IL
    June 9-10, 2015, Chicago, IL
    June 9, 2015, Chicago, IL
    June 10, 2015, Chicago, IL
    September 29-30, 2015, The Westin Grand Müchen, Munich, Germany
    November 11-12, 2015, The Westin Peachtree Plaza, Atlanta, GA
    All Upcoming Live Events
    Infographics
    More and more traffic is traveling within data centers, and operators need new networking approaches to manage this growth. Pica8's infographic shows how operators can confidently and painlessly deploy white box switches into existing networks today and leverage the benefits of SDN.
    Hot Topics
    AT&T Woos SMBs With Small-Scale WiFi
    Sarah Thomas, Editorial Operations Director, 3/26/2015
    Just Don't Say IBM Is 'Relaunching' Networking Business
    Mitch Wagner, West Coast Bureau Chief, Light Reading, 3/26/2015
    TV Everywhere Nears Mainstream Adoption
    Mari Silbey, Independent Technology Editor, 3/27/2015
    Carriers Are Bright Spot in BlackBerry Q4
    Sarah Thomas, Editorial Operations Director, 3/27/2015
    Comcast Says TWC Deal Will Close Later
    Mari Silbey, Independent Technology Editor, 3/26/2015
    Like Us on Facebook
    Twitter Feed
    Webinar Archive
    BETWEEN THE CEOs - Executive Interviews
    LR CEO and Founder Steve Saunders sits down with the head of Qosmos to talk about the changing state of the art in deep packet inspection technology, including its role in SDN and NFV architectures.
    Chattanooga’s EPB publicly owned utility comms company has become a poster child for how to enable a local economy using next-gen networking technology. Steve Saunders, Founder of Light Reading, sits down with Harold DePriest, president and CEO of EPB, to learn how EPB is bringing big time tech to small town America.