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CTO INDUSTRY INSIGHTS

Something Old, Something New


Something Old, Something New

2017 will be remembered as the year that G.fast technology proved itself in the field. With real-world deployments offering previously impossible service rates, this technology has cemented its future in the era of ultrafast broadband delivery. With second- generation G.fast chipsets comfortably delivering on the needs of Gigabit societies, and innovations like Dynamic Timing Allocation (DTA) offering service symmetry, this access technology can outperform both cable broadband, and first- generation PON technologies.

While the focus for G.fast has always been around speed, now that the technology is sufficiently proven, the conversation, while still about speed, has shifted to speed of deployment.

For many network operators, much of their attraction towards maintaining service delivery over their copper infrastructures stems from the challenges with extending fiber deeper into their networks. This challenge holds true for access fibers, but for many it also applies to backhaul fibers, which are needed for short-loop G.fast DPUs, and in the future for small-cell densification.

Leveraging ADTRAN's heritage as one of the industry's leaders in bonded-copper technologies, ADTRAN has applied this experience to attack the time to market challenge facing G.fast in a completely new way.

Targeting G.fast DPU deployments in building basements, ADTRAN's Gigabit-to-the-Basement solution brings high-density copper bonding techniques to all of the latest copper access technologies. With the potential to bond up to eight copper pairs of G.fast, Supervectoring profile 35b, or Vectored VDSL2, ADTRAN's second- generation G.fast DPUs have a variant that sees the current in built fiber up-link complemented with an eight pair bonded cooper up-link. These fiber-ready DPUs can realize Gigabit throughput on the high-density bonded copper up-link when connected to existing Fiber-to-the-Cabinet (FTTC) assets. For many consumer applications, a Gigabit of backhaul will be sufficient to support initial G.fast-based services, while the fiber-ready status of the G.fast DPU ensures that the infrastructure is ready to capitalize on fiber densification when it occurs.

By leveraging ADTRAN's unique experience in copper-bonding technologies, network operators can benefit from two to five times reduction in the time required to deploy G.fast when compared with that required to deploy a similar footprint that utilizes fiber for all backhaul links. This unique combination of old and new technologies from ADTRAN opens up more options to defend against the future threats being posed by DOCSIS 3.1 and 5G access, enabling operators to secure first mover advantage in the battle for the connections that will underpin the Gigabit Society.






The Only Way is Up


The Only Way is Up

The impact that broadband has on our society is often hard to quantify. Changes in what we do and how we do it, have a knack of creeping up on us and quickly embedding themselves so deeply into our lives, that it feels like we always did things that way.

Think about how we access movies in our homes. Services like Netflix have eradicated that Friday night trek to the video store, only to find that nothing good was left in stock. With modern broadband connectivity, we are now empowered to consume anything that can be digitized, instantly. Movies, music, publications, and education are all only seconds away from instant gratification. Suffice to say. The substantial increases in broadband speeds have fundamentally and permanently changed society. However this is only half the story.

With every broadband connection, there are two sides to the link, downstream and upstream. Downstream, the darling of the broadband industry since its inception, and the marketer’s weapon of choice of for the last two decades, has spawned a near endless list of novel applications and disruptive business models that even the most forward thinking would have struggled to predict.

We are now entering a new era. An era where activities like live streaming have become democratized with smartphones and wearable cameras broadcasting through applications like Facebook and YouTube. An era where we can capture our own 360- degree Virtual Reality (VR) content on sub $100 adventure cameras. An era where this same 360-degree streaming technology is making its way into smartphones. In this new era, how we interact with computing environments is also rapidly evolving. With early examples like Google Home, Amazon Alexa and Apple Siri, to name but a few, we can now verbally interact with the digital world. The combination of voice control, coupled with 3D-sensing and cloud-based Artificial Intelligence will open up the world of personal robotic assistants that we have been promised in Sci-Fi movies for decades.

Underpinning all of these exciting advancements is a dependency on reliable, low- latency, high-capacity upstream bandwidth. Without addressing the imbalance inherent in many current broadband services, subscribers will find themselves unable to properly engage in the consumer trends that emerge in the Gigabit Society.

As our industry faces the next round of access network investment there is clear acknowledgment that the asymmetries of the past do not have a place in our future. Symmetric Gigabit access technologies like XGS-PON, NG-PON2, G.fast DTA and even DOCSIS 3.1 Full Duplex, all ensure that next-generation networks will deliver on the vision of Gigabit societies and connect us to the cloud in ways we could never have imagined.

The only way is up.






Free Webinar

The Building Blocks of Telco Transformation

Thursday, Sept. 28 | 8:00 AM Central | 2:00 PM BST

The telecommunications industry is changing as new access technologies and open, software-defined architectures allow for a more flexible and scalable access infrastructure. At the same time, operators are realizing the power of the “Network Effect” and looking for new approaches to monetize their network investments. During this webinar, Ronan Kelly, ADTRAN CTO for EMEA and APAC Regions, will outline the essential building blocks for telco transformation.

This webinar will cover:

  • Market and consumer forces driving the Gigabit chase across the world
  • Symmetric Gigabit, 5th Gen access technologies and their service implications
  • SD-Access architectures and standards that form the foundation of open, programmable, and scalable access networks
  • Principles and economics of the “Platforms Economy” that define how service providers can compete and succeed with next-generation access services

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The Vectoring Vintage

Like with most fine wines, Vectoring continues to improve with age. With tens of millions of Vectoring lines deployed throughout the world, what was once a highly speculative technology has certainly proven its worth in delivering 100 Mbps services with predictability and stability.

Passing the 10 Million ports shipped milestone in 2016, our novel Vectoring portfolio has proven to be the fastest growing product line in the history of the company, yielding the number one North American market share position, with shipments exceeding those of the next two largest vendors combined.

Thankfully the maturation process did not culminate with Vectoring for VDSL2; rather this was only the first step in this yet unfinished Vectoring tale. Like a Gran Reserve, who's maturation extracts even more from the fruits off the humble vine, Vectoring technology, now in its fifth year, is extracting even more from the network of copper vines in the form of Super-Vectoring.

2017 shall bear witness to the first large-scale commercial deployments of Super-Vectoring technology. Coexisting with current Vectored VDSL2 services, Super-Vectoring technology extends the usable broadband spectrum from 17 MHz to 35 MHz. This doubling of usable spectrum is particularly attractive to operators seeking to rapidly deploy service offerings with capacities in the range of 300 Mbps. By leveraging their current active equipment locations, operators can exploit existing cabinet, backhaul, and power assets, alongside their deployed MSAN and DSLAM platforms, to achieve the fastest possible time to market for this next wave of Ultra-fast services.

With Super-Vectoring emerging across the hiX5600, Total Access 5000, and Total Access 1148 sealed micro DSLAM families, ADTRAN is bringing to market the most comprehensive and highest density Super-Vectoring portfolio available in the industry.

As with a good Bordeaux, Vectoring technology, entering its second half-decade, has much more to give. At 35 MHz today, the role for even higher coexisting frequencies is under investigation. At this point, it is difficult to predict just where the ultimate potential for Vectoring lays, but suffice to say, for those who speculated about its viability, their bottle has clearly run dry.