Light Reading
Comcast is adding DOCSIS 3.1 to its own CCAP product specs and looking at remote PHY next.

Salinger Draws Comcast CCAP Roadmap

Mari Silbey
3/28/2014
50%
50%

DENVER -- Cable Next-Gen Strategies & Technologies -- As the man affectionately dubbed the father of the Cable Converged Access Platform, it's appropriate that Comcast vice president of access architecture Jorge Salinger is already looking ahead to what's next for CCAP.

In 2014, most vendors have launched CCAP products in one form or another, and operator deployments are well underway. According to Salinger, Comcast Corp. (Nasdaq: CMCSA, CMCSK)'s own CCAP product specifications are already being expanded to include DOCSIS 3.1.

That work began in January, and Salinger said at Light Reading's technology event in Denver that he expects the DOCSIS 3.1 additions to the product specification to be complete within a month.

Beyond DOCSIS evolution, however, Salinger sees plenty of other opportunities for CCAP. Most notably, he and others are examining remote PHY strategies, which would mean distributing certain traditional headend functions out into the cable node.

The advantage of a remote PHY approach is that it moves modulation deeper into the network, creating a digital link where today an analog one exists. In the most extreme case, operators could remote both the PHY and MAC layers, essentially implementing a virtual CCAP device out in the node. The virtual CCAP strategy is one championed by startup Gainspeed, although that company hasn't launched any official products yet. (See Is CCAP Already Out of Date?)

There are major potential performance benefits in capacity and reliability to distributing CCAP functions further out into the network. However, cable companies have to wade through a number of options for implementing such an approach. Salinger laid out the next steps for remote PHY development, which include crafting remote PHY hardware and function specifications, and configuration and management specs. While saying he thought "this will all be developed this year," Salinger did concede that rolling out remote PHY technology will be a more difficult challenge.

Ony Anglade, senior access architect for Cox Communications Inc. , who sat on a CCAP panel with Salinger, agreed that deployment won't be easy. "[The] big challenge for us is the migration process," said Anglade.

Operators will have to decide which network transitions to consider first; for example, whether to deploy remote PHY in one of its forms, do a mid-split to ensure greater upstream capacity, or combine multiple strategies at once.

Steve Vogelsang, strategy vice president and CTO for IP routing and transport at Alcatel-Lucent (NYSE: ALU), who was also on the CCAP panel, described the situation in even starker terms. He said that the changes cable companies have to make to their networks are analogous to keeping a plane in the air while swapping out the engine.

For vendors, said Vogelsang, the important thing will be to make sure that, as new products are introduced, technology providers have strategies for how to introduce those solutions into existing networks. Cable doesn't have the luxury of a greenfield environment.

— Mari Silbey, special to Light Reading

(0)  | 
Comment  | 
Print  | 
Newest First  |  Oldest First  |  Threaded View
Flash Poll
From The Founder
It's clear to me that the communications industry is divided into two types of people, and only one is living in the real world.
LRTV Interviews
Liberty Global Sees Business Goldmine

12|18|14   |     |   (0) comments


Steen Sorensen, VP of business services for Liberty Global, explains where the giant international MSO sees growth potential.
LRTV Documentaries
EE: The Road to 5G

12|16|14   |   16:02   |   (1) comment


Andy Sutton, the principal network architect at UK mobile operator EE, explains how his company is using Wembley stadium as a wireless test bed and how that's helping EE to plan the evolution to 5G.
LRTV Huawei Video Resource Center
Highlights of Huawei's NFV Open Cloud Forum 2014

12|16|14   |     |   (0) comments


Huawei hosted its inaugural NFV Open Cloud Forum during the SDN & OpenFlow World Congress 2014 in Düsseldorf, Germany. The Forum brought together technology thought leaders, senior executives and telecom professionals from global carriers, industry associations, as well as other partner companies in the ecosystem, to exchange views on and collectively explore how ...
LRTV Custom TV
Realizing Operators' Digital Vision

12|16|14   |   5:23   |   (0) comments


Leveraging technology is fundamental to digital transformation but understanding customers and serving them really well is at the heart of digital businesses. TM Forum lists the following as the strategic pillars of the digital business: business agility and rapid innovation, operational agility and effectiveness, IT and data centricity, plus customer centricity. ...
LRTV Documentaries
US Cellular Injects Analytics Into LTE

12|16|14   |   2:57   |   (1) comment


US Cellular's Mario Vela explains how the operator uses analytics for network planning and what comes next as the carrier looks to eke more value out of its metrics.
LRTV Interviews
How Cox Biz Plans to Keep Growing

12|15|14   |     |   (2) comments


Steve Rowley, SVP of Cox Business, details how the third-biggest US MSO intends to boost its revenues to $2 billion and beyond over the rest of the decade
LRTV Huawei Video Resource Center
Interview With Bill Zhang, Director of SoftCOM Product Management, Huawei

12|15|14   |   2:50   |   (0) comments


Bill Zhang elaborated on Huawei's open philosophy in NFV solution development and network architecture design at the SDN & OpenFlow World Congress 2014.
LRTV Huawei Video Resource Center
Event Highlights: Huawei at SDN & OpenFlow World Congress 2014

12|15|14   |   3:43   |   (0) comments


Huawei joined the 2014 SDN & OpenFlow Congress as one of the key sponsors and contributors. At the event, Huawei reinforced the openness and flexibility of its network infrastructure strategies, and provided updates on its SDN and NVF innovations. Through participations at the exhibitions, forums and speeches, Huawei encouraged the industry to "think bigger and ...
LRTV Interviews
How Cable Biz Services Hit $10B Mark

12|12|14   |     |   (1) comment


Cable operators reached $10 billion in annual business services revenues by delving deeper into their vertical markets and expanding beyond the smallest firms.
LRTV Documentaries
Mediacom Aims to Test Connected Tractors

12|11|14   |   05:07   |   (3) comments


Cable business service provider is taking its services to the 'agribusiness' sector in partnership with farm equipment specialist John Deere and is getting involved in Gigabit Cities developments.
LRTV Interviews
TWC Business Looks Beyond $3B

12|10|14   |     |   (0) comments


TWC Business Services chief Phil Meeks explains how his unit has reached $3 billion in annual revenues and what its plans are for next year.
LRTV Documentaries
AT&T's New Security Strategy

12|10|14   |   02:36   |   (1) comment


AT&T's Chief Security Officer Ed Amoroso explains how his company is wrapping virtual security layers around micro network domains.
Upcoming Live Events
February 10, 2015, The Westin Peachtree Plaza, Atlanta, GA
March 17, 2015, The Cable Center, Denver, CO
April 14, 2015, The Westin Times Square, New York City, NY
May 6, 2015, McCormick Convention Center, Chicago, IL
May 13-14, 2015, The Westin Peachtree, Atlanta, GA
June 9-10, 2015, Chicago, IL
Hot Topics
Vodafone to Ride T-Mobile Back Into US
Dan Jones, Mobile Editor, 12/12/2014
1-Gig: Coming to a Small Town Near You
Jason Meyers, Senior Editor, Gigabit Cities/IoT, 12/17/2014
T-Mobile, BlackBerry Flirt With Reuniting
Sarah Reedy, Senior Editor, 12/17/2014
Gardner's Departure a Cautionary Tale
Carol Wilson, Editor-at-large, 12/12/2014
T-Mobile Lights Up 27 Wideband LTE Cities
Sarah Reedy, Senior Editor, 12/15/2014
Like Us on Facebook
Twitter Feed
Upcoming Webinars
Webinar Archive