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CES 2015: Ultra-High-Definition 4K TV over Copper

Sckipio G.fast enables telco delivery of 4K TV
1/12/2015 02:00 AM EST
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Smalls_62
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Re: High Def Over Copper Wires ... BUT
Smalls_62   2/9/2015 6:16:27 PM
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It really needs to be 200m or less from the DPU to the home in order to provide adequate bandwidth for multiple streaming TVs.  400m is enough for one streaming TV though. 

The real tech game stopper to watch over the next couple years as it is developed is 5G small cell.   Essentially a fiber backbone with small cell using millimeter wave spectrum capable of delivering multiple gbps.  Samsung and Ericsson have 5 and 7.5 gbps confirmed tests with some experts predicting between 10 gbps and 50 gbps potential by 2020.  The capex game changer?  Fiber trunks running parallel at about 4 km and each trunk having a small cel deployed every 4km provides a metro blanket.  The FCC has reported those two particular companies have also solved prior line of site limitations previously hampering the use of millimeter spectrum.  If all you need is a couple handfuls of fiber trunks and a small cell deployment about every 4 km to provide mobile phone, internet, and mobile streaming TV an ISP could cover a major metro of +1 million....   need I say more?  Okay.  Maybe a touch more.

Search "Google Alpental" and note it is full of former Clearwire engineers.  First article note the Gelbman iPod cost comment.  This Google takeover confirmed June 2014 I believe. 

Now search "Google millimeter FCC".  October '14.  Watch out.  Google already has a mother lode of fiber trunk scattered across the U.S. to their own data centers as well as the globe with some major sea cables in place already.  Google might come rolling in as not only the ultra high bandwidth ISP with that bandwidth also become your mobile telco and TV bundler as well.  5G would be Google's ability to rival cost of network capex against even G.fast and DOCSIS 3.1.   Take notice Verizon JUST sold its consumer FiOS network to Frontier Communications to pay for the spectrum auction purchases.  It may have just been a convenient reason to offload final mile that won't be needed for 5G infrastructure design.  Keep an eye on Google and 5G.   On a final side note TMUS announced it would begin trialing Ericsson's 5G near the end of 2015.

 

Smalls_62
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Re: High Def Over Copper Wires ... BUT
Smalls_62   1/29/2015 4:37:58 PM
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Not having to place fiber is an absolutely huge capital saver.  G.fast and DOCSIS (possibly 5G/small cell) will allow for communications players to deploy fiber like speeds at 10 or 20 cents on the dollar at a HUGELY quicker rate of deployment.  The home hardware was designed by the makers of G.fast to be customer friendly install.  They will get the package left on the front porch or just shipped to them.  No need for a technician to enter each home to pull fiber and install let alone burying the line through endless numbers of backyards. 

As for the maintenance of the existing copper, There is copper that has been in the ground for thirty, fourty, fifty years that is still in good shape.  What G.fast will do is allow for a technician on an ongoing basis to fix or rip and replace with fiber on an AS NEEDED basis.   Replacing a few percent of homes with full fiber per year might mean a thrirty year window for full fiber to the population vs. the telecom trying to swallow that expense in say a five or ten year window.  

Check out G.fast design.  It is power parasitic, meaning the power is drawn from the home/business owner to run the node/DPU.  Some figures I have seen out there are that power draw per home is low additional annual electric cost in the neighborhood of $5-$10/year.  The designers of G.fast were VERY smart in their design.  Ease of installation to power supply.  The telco doesn't have to run power to each DPU.

Did some digging on the 4 residence comment.  Each chip unit has four ports(= 4 homes)....but each DPU (distribution point OR node) has 16 total ports.  That should be adequate for most typical U.S. residential blocks to require just one DPU deployed in the center of the block. 

tb100
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Re: High Def Over Copper Wires ... BUT
tb100   1/29/2015 2:52:51 PM
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I have always wondered about the cost of the last 300m or so copper to the home. Sure, installing that last bit of fiber is very expensive, but what about the long term costs for that copper?

Have you ever seen one of those 5' tall Uverse boxes out on the sidewalk? It has a chassis full of electronics inside. You can hear the fans blasting. It has a power meter on the side from the power company. What are the long term costs of this box? It is burning power, it has to handle incredibly wide weather conditions, and despite best design efforts, my experience is that this leads to short life, which means you'll occasionally need to send a maintenance guy out in the middle of the night in a snowstorm to diagnose and replace a failed board in the field. Those costs are never-ending.

Whereas the fiber cost is finished once you've installed it.

Smalls_62
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Re: High Def Over Copper Wires ... BUT
Smalls_62   1/29/2015 2:09:48 PM
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From my understanding of numerous article, G.fast performs best at 100M or less.  Even better at 50M or less.  What will be required of telcos is a distritbution point (node) to essentially the center of each residential block.  The Sckipio hardware is then installed at the node which can service up to 16 homes, not your set of 4 homes.  The split is at the node.  The  The CAPACITY of the G.fast technology is limited by the distance from the node to the home hardware (essentially a new modem+router) to be installed.  The average usage of a streaming 4K TV displayed at CES was reported around 65 mbps while some have indicated near half that is all that is needed per TV using 4K.  As long as the node is within a 200m of the home (delivers about 200 mbps), there will be sufficient capacity to support 4 TVs streaming 4K TV. 

 

Depending on your typical U.S. residential suburb you can range from less than 100m to 200m with the VAST majority under 120m (do some research if you don't believe me).  Stab a node in the middle of the residential block (alley way) and you have every house on the block within the 66 meters tested by BT in the U.K. and a gargantuan leap from 10 mpbs DSL to 900 mbps.  According to very limited information, the likes of AT&T would need to deploy fiber a little farther into each neigborhood but the biggest expense of FULL fiber is replacing the copper from the curb into the home.  Reports vary from 80=90% of the cost of full fiber is the deployment from the curb/alley into the home.  G.fast removes the need to install last leg fiber but does require deployment of fiber into each residential block in order to perform at bandwidth requirements of the typical U.S. average of 2.5 TVs per home.  At three simltaneous 4K streaming TVs/devices in a home, a node (where fiber is coupled with copper using G.fast) is needed within 200 meters to provide lag free viewing.  G.fast is a major capex saver vs. full fiber.   Cable has its version of G.fast called DOCSIS 3.1 and now there are numerous companies working on small cell technology using millimeter wave spectrum that is expected to deliver 10-50 gbps by 2020.  Samsung and Ericsson have already confirmed speeds of 5-7.5 gbps.  This would allow for the like of Google Fiber to run a fiber line down your alley and then use the millimeter spectrum (5G) to completely avoid the need to string fixed line from curb into home.   Not to mention LTE-A which is coming to markets in 2015 that provides enough bandwidth per device to stream 4K TV at 100-150 mbps.  Bandwidth is set to explode over the next few years and there are several techs that will be used by the various communications players.

 

wilber_xbox
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Re: High Def Over Copper Wires ... BUT
wilber_xbox   1/27/2015 6:24:13 AM
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DrQuine, i was also wondering the same whether it is all Copper transmission without fiber. 400m is copper wire might be enough to connect to a neighbourhood fibre port and this can same some money and hassel to get UHDV at home.

R_Colin_Johnson
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Re: High Def Over Copper Wires ... BUT
R_Colin_Johnson   1/17/2015 3:40:06 PM
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Dr. Quine, thanks for the thoughful comment. I believe up to 4 devices per household can be supported. Regarding fiber, I guess is depends on where you live. I live in Portland Ore. and they have fiber, my parents in Orlando, Fla. have fiber to the curb, and those aren't even major cities. Nevertheless, most people are going to watch 4K TV over cable anyway, this story was about those who are using DSL now, which won't support 4K, but could by using G.fast. Thanks again for you careful reading.

DrQuine
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High Def Over Copper Wires ... BUT
DrQuine   1/17/2015 3:04:17 PM
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High Def TV over twisted pair copper wires sounds exciting but misses some points. First, most households are likely to have multiple channel recording / display devices in the house so multiple channels in each house must be supported by the system. Second, the system as described requires that a fiber optic cable get within the neighborhood of each set of 4 houses before the signal is split and distributed. Existing infrastructure probably can't support these systems even if the last quarter mile can use existing copper wire.

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