& cplSiteName &

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        ADD A COMMENT
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,-á 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.-á 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?
From The Founder
Kicking off BCE 2017, Light Reading founder Steve Saunders lays blame for NFV's slow ramp-up and urges telecom to return to old-fashioned standards building and interoperability.
Flash Poll
Live Streaming Video
Charting the CSP's Future
Six different communications service providers join to debate their visions of the future CSP, following a landmark presentation from AT&T on its massive virtualization efforts and a look back on where the telecom industry has been and where it's going from two industry veterans.
Women in Comms Introduction Videos
Infinera's Sales Director Paints Tech's Big Picture

6|21|17   |   4:14   |   (2) comments


Shannon Williams, Infinera's director of sales, shares how she achieves work's many balancing acts -- between her role and the broader company, today and tomorrow's tech and more.
LRTV Custom TV
SD-WAN Innovation & Trends

6|20|17   |     |   (0) comments


Versa CEO Kelly Ahuja discusses with Carol Wilson the current status and trends in the SD-WAN market, Versa's innovation around building a software platform with broad contextualization, and the advantages that startups can bring to the SD-WAN market.
LRTV Interviews
Ovum's Dario Talmesio on 5G in Europe

6|20|17   |   02:16   |   (0) comments


At 5G World 2017, Dario Talmesio, principal analyst and practice leader on Ovum's fixed and mobile telecoms European team, explains the emerging trends amongst European operators as they prepare for 5G.
LRTV Custom TV
Putting Power on a Pedestal

6|19|17   |     |   (0) comments


ARRIS's John Ulm says a major accomplishment of SCTE•ISBE's Energy 2020 program is increased focus on power cost and consumption, including inclusion of energy requirements in operators' RFPs and RFIs.
LRTV Custom TV
Gigabit Access: The Last-Mile Pipe for All Future Services

6|19|17   |     |   (0) comments


A Gigabit access platform being deployed today must be able to deliver all types of services to an increasing number of devices. A non-blocking architecture is necessary to support the ever-increasing growth in bandwidth demand. The Huawei Gigabit access solution is based on a distributed design that is fully scalable to deliver a unprecedented performance.
LRTV Custom TV
Key Factors to Successfully Deploy an SD-WAN Service

6|19|17   |     |   (0) comments


As service providers transition their SD-WAN solution from trials and limited deployments into production at large scale, there are important considerations to successfully operationalize these solutions and realize their full potential, without adding complexity, introducing uncertainty or disrupting current business operations. Sunil Khandekar, CEO and Founder ...
LRTV Custom TV
IoT Solutions: Rational Exuberance

6|19|17   |     |   (0) comments


IoT solutions are morphing from hype into viable business opportunities. Huawei has the platform and ecosystem support to help carriers successfully address new business opportunities in the IoT space.
LRTV Custom TV
Realizing ICN as a Network Slice for Mobile Data Distribution

6|19|17   |     |   (1) comment


Network slicing in 5G allows the potential introduction of new network architectures such as Information-centric Networks (ICN) as a slice, managed over a shared pool of compute, storage and bandwidth resource. Services over an ICN slice can benefit from many architectural features such as Name Based Networking, Security, Multicasting, Multi-homing, Mobility, ...
LRTV Interviews
Ovum's Mike Roberts on 5G Uptake

6|19|17   |   04:08   |   (0) comments


Mike Roberts, research director for Ovum's service provider markets group, explains why he has boosted his 5G subscriptions forecast.
LRTV Interviews
AT&T's Hubbard on Intersection of SD-WAN & MPLS

6|15|17   |     |   (0) comments


Rick Hubbard, SVP of Network Product Management for AT&T Business Solutions, discusses how AT&T's approach to SD-WAN fits in with its overall virtualization strategy, explains how SD-WAN can improve enterprise customers' use of the cloud and addresses the intersection of SD-WAN and MPLS.
Telecom Innovators Video Showcase
Keep Connected IoT Devices Under Control With Allot

6|15|17   |     |   (0) comments


Allot AVP of International Pre-Sales, Daniel Keidar, explains how communications service providers can protect infrastructure and service availability from flooding attacks caused by malfunctioning or bot-infected devices connected to their network.
LRTV Custom TV
ZTE 5G World Highlights

6|15|17   |     |   (0) comments


ZTE showcases its leading 5G innovations at 5G World in London.
Upcoming Live Events
October 18, 2017, Colorado Convention Center - Denver, CO
November 1, 2017, The Montcalm Marble Arch
November 1, 2017, The Montcalm Marble Arch
November 30, 2017, The Westin Times Square
All Upcoming Live Events
Infographics
With the mobile ecosystem becoming increasingly vulnerable to security threats, AdaptiveMobile has laid out some of the key considerations for the wireless community.
Hot Topics
Netflix's Lesson in Culture Expectation Settings
Sarah Thomas, Director, Women in Comms, 6/21/2017
Kalanick Steps Down as Uber CEO
Sarah Thomas, Director, Women in Comms, 6/21/2017
BT Tech Chief Makes Plea to 5G Chip Vendors
Ray Le Maistre, International Group Editor, 6/20/2017
No Imagination: UK Chip Biz Goes Up for Sale
Iain Morris, News Editor, 6/22/2017
Like Us on Facebook
Twitter Feed
BETWEEN THE CEOs - Executive Interviews
Following a recent board meeting, the New IP Agency (NIA) has a new strategy to help accelerate the adoption of NFV capabilities, explains the Agency's Founder and Secretary, Steve Saunders.
One of the nice bits of my job (other than the teeny tiny salary, obviously) is that I get to pick and choose who I interview for this slot on the Light Reading home ...
Animals with Phones
Live Digital Audio

Playing it safe can only get you so far. Sometimes the biggest bets have the biggest payouts, and that is true in your career as well. For this radio show, Caroline Chan, general manager of the 5G Infrastructure Division of the Network Platform Group at Intel, will share her own personal story of how she successfully took big bets to build a successful career, as well as offer advice on how you can do the same. We’ll cover everything from how to overcome fear and manage risk, how to be prepared for where technology is going in the future and how to structure your career in a way to ensure you keep progressing. Chan, a seasoned telecom veteran and effective risk taker herself, will also leave plenty of time to answer all your questions live on the air.