Light Reading
11:00 AM Broadcom exec says we shouldn't rule out the development of a 32-channel Docsis 3.0 chip

Will Broadcom Go for More Than 1-Gig?

Jeff Baumgartner
The Bauminator
Jeff Baumgartner
1/8/2013
50%
50%

11:00 AM -- As Broadcom Corp. worked on its next-gen Docsis 3.0 chipsets last summer, the chatter was that the company would try to leapfrog Intel Corp.'s Puma6 with silicon that could bond 32 downstream channels -- enough to push out max speeds of 1.2 Gbit/s. That didn't happen. On Tuesday, Broadcom came out with two chipsets that mirror the capabilities of the Puma6 -- a high-end version that can bond 24 downstream channels and 8 upstreams, and one with a 16x4 configuration that can snap into Broadcom's widely deployed 8x4 D3 modem hardware designs. (See Broadcom Matches Intel With 1-Gig D3 Chipset.) Of course, much has changed since last summer. The cable industry's Docsis 3.1 spec is pursuing faster speeds while doing away with the old 6MHz (North American Docsis) and 8MHz (EuroDocsis) channel spacing. Instead, Docsis 3.1 will favor the use of super-wide channels made up of small orthogonal frequency division multiplexing (OFDM) subcarriers. (See Docsis 3.1 Targets 10-Gig Downstream.) The emergence of Docsis 3.1 could have contributed to Broadcom's decision, or perhaps the market told Broadcom that it didn't need 32-channel bonding capabilities just yet. But when it comes to a Docsis 3.0 chipset that goes beyond 24 downstreams, well, never say never. "I wouldn’t rule out 32 [downstream channels] as the next step," says Jay Kirchoff, VP of marketing for Broadcom's cable broadband unit. "We're clearly looking at other things and the newest specs that are being developed." [Ed. note: several cable modem termination system (CMTS) vendors are working on software that enables the bonding of 32 downstream channels.] He says Broadcom's Full-Band Capture (FBC) technology would certainly pave the way for the bonding of 32 channels. Rather than having to pluck channels out of a 100MHz-block, FBC lets operators grab and bond channels from anywhere on the spectrum, up to 1GHz. "We don't have to add more tuners if we want more channels to bond. It's extremely scalable, should be want to go to 32 and even beyond in future generations of product," Kirchoff said. So, 24 channels and about 1 Gbit/s is the current Docsis 3.0 downstream speed limit. But to go beyond it, Broadcom suggests all it has to do is press down a little harder on the gas pedal. — Jeff Baumgartner, Site Editor, Light Reading Cable

(2)  | 
Comment  | 
Print  | 
Newest First  |  Oldest First  |  Threaded View
Moe Sukhon
50%
50%
Moe Sukhon,
User Rank: Light Beer
5/15/2013 | 6:27:26 PM
re: Will Broadcom Go for More Than 1-Gig?
Will deploying these 24/32 channel bonded tuners change the specs on the upstream amplifier found in an STB? or change the requirements on the headend/CMTS discrete amplifiers?
Jeff Baumgartner
50%
50%
Jeff Baumgartner,
User Rank: Light Beer
1/8/2013 | 5:40:46 PM
re: Will Broadcom Go for More Than 1-Gig?
Of course,- supporting 32 channels and actually using them are two different things... still hearing that some operators have trouble finding 8 channels for the widely deployed 8x4 modems.- But suppose the 24 and a potential 32-channel set-up gives some good future proofing while D3.1 gets going. JB
More Blogs from The Bauminator
Don't expect anything more to pop for a while, but one analyst sees John Malone & Co. as the 'logical, ultimate acquirer of Ziggo' if the price is right
Cable operators will need to free up at least 24MHz of spectrum for Docsis 3.1. But why is that the magic number?
Liberty Media's rumored plan to snag a 25% stake in Charter for $2.5B could aid the MSO's M&A strategy
Top US cable operators lost 1.41 million video subs in 2012, but the bleeding continues to show signs of slowing in a saturated pay-TV market
Aereo streams its 'no cable required' tagline into the video world. Will consumers tune in to the message?
Flash Poll
LRTV Custom TV
A New Security Paradigm in SDN/NFV

7|28|14   |   02:54   |   (0) comments


Paul Shaneck, Global Director Network Solutions for Symantec, discusses the evolving virtualized network, explaining how Symantec is leading the security discussion as it relates to SDN and NFV, and helping to ensure the network is protected and compliant.
LRTV Documentaries
Sprint's Network Evolution

7|24|14   |   14:59   |   (0) comments


Sprint's Jay Bluhm gives a keynote speech at the Big Telecom Event (BTE) about Sprint's network and services evolution strategy, including Spark.
LRTV Documentaries
BTE Keynote: The Software-Defined Operator

7|24|14   |   18:43   |   (1) comment


Deutsche Telekom's Axel Clauberg explains the concept of the software-defined operator to the Big Telecom Event (BTE) crowd.
Light Reedy
Numbers Are In: LR's 2014 Salary Survey

7|24|14   |   1:25   |   (7) comments


Our fourth annual Salary Survey paints a picture of who's hiring, firing, earning, and yearning for a change in the telecom industry.
LRTV Custom TV
Driving the Network Transformation

7|23|14   |   4:29   |   (0) comments


Intel's Sandra Rivera discusses network transformation and how Intel technologies, programs, and standards body efforts have helped the industry migration to SDN and NFV.
LRTV Custom TV
Distributed NFV-Based Business Services by RAD

7|18|14   |   5:38   |   (0) comments


With the ETSI-approved Distributed NFV PoC running in the background, RAD's CEO, Dror Bin, talks about why D-NFV makes compelling sense for service providers, and about the dollars and cents RAD is putting behind D-NFV.
LRTV Custom TV
MRV – Accelerating Packet Optical Convergence

7|15|14   |   6:06   |   (0) comments


Giving you network insight to make your network smarter.
LRTV Custom TV
NFV-Enabled Ethernet for Generating New Revenues

7|15|14   |   5:49   |   (0) comments


Cyan's Planet Orchestrate allows service providers and their end-customers to activate software-based capabilities such as firewalls and encryption on top of existing Ethernet services in just minutes.
LRTV Custom TV
Symkloud NVF-Ready Video Transcoding, Big Data

7|9|14   |   3:41   |   (0) comments


Kontron and ISV partner Vantrix demonstrate high-performance video transcoding and data analytic solutions on same 2U standard platform that is ready for SDN and NFV deployments made by mobile, cable and cloud operators.
LRTV Huawei Video Resource Center
The Evolving Role of Hybrid Video for Competitive Success

7|4|14   |   4:09   |   (0) comments


At Huawei's Global Analysts Summit in Shenzhen, China, Steven C. Hawley from TV Strategies speaks to us about the evolving role of hybrid video for competitive success.
LRTV Huawei Video Resource Center
How CSPs Leverage Big Data in the Digital Economy

7|4|14   |   4:48   |   (2) comments


Justin van der Lande from Analysys Mason shares with us his views on how telecom operators can leverage customer asset monetization with big data. His discusses the current status of big data applications and the challenges and opportunities for telecom operators in the digital economy era.
LRTV Huawei Video Resource Center
Accelerator for Digital Business – Future Oriented BSS

7|4|14   |   3:08   |   (0) comments


Mobile and internet are becoming intertwined; IT and CT are integrating; and leading CSPs have begun to transform to information service and entertainment providers. How should the BSS system evolve to enable this transformation? Karl Whitelock, an analyst at Frost & Sullivan, shares his views.
Upcoming Live Events!!
September 16, 2014, Santa Clara, CA
September 16, 2014, Santa Clara, CA
October 29, 2014, New York City
November 6, 2014, Santa Clara
November 11, 2014, Atlanta, GA
December 9-10, 2014, Reykjavik, Iceland
June 9-10, 2015, Chicago, IL
Infographics
Packet Design asks network professionals how they handle the cloud, SDN, and network management.
Today's Cartoon
Vacation Special Caption Competition Click Here
Latest Comment
Hot Topics
Is Windstream Boldly Setting a New Trend?
Carol Wilson, Editor-at-large, 7/29/2014
Sprint, T-Mobile: The Price War's On
Sarah Reedy, Senior Editor, 7/30/2014
Pics From Comic-Con -- Honest!
Mitch Wagner, West Coast Bureau Chief, Light Reading, 7/30/2014
If Not Muni Networks, Then What?
Carol Wilson, Editor-at-large, 7/28/2014
Verizon Applies 3G Throttling Policy to LTE
Sarah Reedy, Senior Editor, 7/25/2014
Like Us on Facebook
Twitter Feed