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DOCSIS

Cox, Moto Test 400Mbit/s Docsis 3.0 Upstream

The new upstream Docsis speed record set by Motorola Mobility LLC and Cox Communications Inc. in Las Vegas leads today's cable news roundup.

  • Following Comcast Corp. (Nasdaq: CMCSA, CMCSK)'s claim that Docsis 3.0 upstream channel bonding is almost ready, Cox and Moto say they've hit upstream speeds of 356Mbit/s in the field by combining 12 return path channels. They followed that by demonstrating 400Mbit/s bursts at this week's CableLabs Winter Conference in Atlanta. (See Comcast Preps a Docsis 3.0 Boost.)

    The tests featured Motorola's flagship cable modem termination system (CMTS), the BSR 64000, and a new dedicated upstream CMTS blade packed with 48 ports. Cox and Moto conducted the field test in the MSO's Las Vegas market using spectrum in a 5MHz-85MHz return path. (See Moto Wields Upstream CMTS Blade.)

  • Just as gesture-based navigation is gaining steam, Microsoft Corp. (Nasdaq: MSFT) is developing a "Skinput" system that would allow users to control devices by hitting specific points on their arm. (See PrimeSense Makes a Cable Kinect-tion.)

  • Speaking of advances in navigation technology, Roku Inc. has an iPad app that allows users to swipe their phones to change channels. (See Roku Scores First OTT Cable Deal.)

  • Boxee raised another $16.5 million, bringing on new investors Pitango and Softbank. (See Boxee Launches Cord-Cutting Box .)

  • The National Association of Broadcasters (NAB) is accusing Dish Network LLC (Nasdaq: DISH) and Time Warner Cable Inc. (NYSE: TWC) of "hoarding" spectrum.

  • That Federal Communications Commission (FCC) meeting on Thursday about retransmission consent can't come soon enough for Lin Media, which says it expects Dish to pull its signals in 17 markets on Friday.

  • Virgin Media Inc. (Nasdaq: VMED) saw a 10 percent jump in video-on-demand (VoD) traffic last year, with its subscribers generating nearly 900 million views.

    — Steve Donohue, Special to Light Reading Cable

  • Jeff Baumgartner 12/5/2012 | 5:11:35 PM
    re: Cox, Moto Test 400Mbit/s Docsis 3.0 Upstream

    Also of note, they hit 141Mbit/s using a 5MHz-42MHz return path and the fusion of six upstream channels... something closer to what you'd get in a typical spectrum set-up for a US MSO.  The other speed record example, to me, looks like more of a mid-split whereby you'd turn some existing downstream spectrum into upstream spectrum.


    But interesting they were able to hit those kinds of speeds in the field tests and at the lab demo.  They also follow a string of recent downstream D3 trials that achieved speed bursts of greater than 1Gbit/s.  Here's  more detials on the Cablecom (Switzerland) trial,  and Get (Norway) achieved in its test. JB


     

     

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