Between the Lines

Larry Dignan, Andrew Nusca and Rachel King

Forget Intel's Thunderbolt, Wireless USB is the game-changer

By | March 3, 2011, 1:35pm PST

Summary: Intel’s Thunderbolt leapfrogged USB 3.0 as the new cable solution Intel is pushing. But, the real game-charger is Wireless USB. Learn how it could revolutionize computing and why Intel is avoiding it.

Last week Intel made a big deal about the official launch of its Light Peak technology — now called Thunderbolt — which enables much faster data transfers (10Gbps) and the ability to consolidate accessories and video connections into one cable with a connector that is half the size of a USB plug.

While those are useful features, the arrival of Thunderbolt had me scratching my head and asking two big questions:

  1. What happened to USB 3.0?
  2. Where’s Wireless USB?

Both of those technologies have been in development for years, but somehow Light Peak/Thunderbolt was able to leapfrog them, at least in terms of getting the green light from Intel and its partners.

Some of that certainly has to do with Apple getting on board with Thunderbolt. Apple’s new line of MacBook Pro laptops are the first computers to include Thunderbolt. Also, while Thunderbolt was originally expected to use the same type of connector as USB (a confict with USB-IF apparently prevented that), when Thunderbolt was unveiled last week it was surprisingly announced that it will use a Mini DisplayPort connector — a technology developed by Apple and licensed without a fee.

One of the big advantages of Thunderbolt is that it’s capable enough to handle LCD monitors and other displays so it can replace the need for VGA, DVI, or HDMI ports on laptops and desktops. That means users only need to worry about one type of cable for all of their accessories. However, USB 3.0 (also called “SuperSpeed USB”) has been developing the same thing. A number of display manufacturers have mentioned to me in recent years that USB 3.0 will eliminate the need for those other video connectors in computers and allow users to connect their monitors to a USB port. Will display makers dump the work they’ve been doing preparing for USB 3.0 and switch to Thunderbolt? I doubt it, at least not right away.

Also, keep in mind that USB 3.0 is backward compatible with the millions of existing USB peripherals as well, while Thunderbolt will require adapters to work with them. The only drawbacks to USB 3.0 versus Thunderbolt are 1.) it’s half as fast (5Gbps for USB 3.0 vs. 10Gbps for Thunderbolt) and 2.) the USB 3.0 connector is a little larger.

However, the real missed opportunity here is Wireless USB. That’s the technology that I would love to see Intel pushing instead of Thunderbolt. Sure, Thunderbolt will deliver faster file transfers and consolidate cables, but Wireless USB is a much bigger game-changer. It can reduce accessory cables altogether and has the potential to introduce a universal wireless docking solution that could turn the computing industry on its head. In fact, the latter is probably why Intel isn’t pushing it — that type of radical change isn’t in their self-interest. More on that in a moment.

First, let’s talk about the elimination of accessory cables. This is long overdue. At the same time Wi-Fi first came on the scene a decade ago and launched the concept of the WLAN (that’s wireless local area network), there was another hot new term at the time called PAN (personal area network). The idea was that not only would computers connect wirelessly to corporate networks and the Internet, but that there would also be mini wireless networks centered a desktop or laptop machine itself, in order to connect mice, keyboards, monitors, printers, scanners, headphones, PDAs (now smartphones), etc. The hope back then was that Bluetooth would be the enabler of the PAN, but that hasn’t happened because Bluetooth is flaky, slow, and difficult to set up. To make the PAN happen, we need something more robust like Wireless USB.

Building on that concept of the PAN is the idea of the wireless docking solution — this is the killer feature of Wireless USB. Accessory makers have been chomping at the bit for a couple years to get this because it would make it infinitely easier for mobile users to dock a laptop to a full monitor, keyboard, and mouse (using a Wireless USB connection a laptop could simply connect to a dock that has legacy peripherals plugged in).

In fact, it would not only be easy, it would turn Wireless USB into a universal docking solution instead of the current situation where each laptop maker has its own proprietary docking connectors and then badly overcharges for the docks. A universal wireless docking solution would have two big effects for mobile users — it would make docks a lot cheaper and it would likely spawn a lot more places to dock. For example, offices and other institutions could set up public work areas where people could dock to work no matter what platform they are running (Windows, Mac, Linux, iPad, etc), as long as it has Wireless USB. I can even imagine Internet cafes offering docking areas.

However, once we take this idea one step further, then we start to see why Intel may not be so enthusiastic about it. Think about the Motorola Atrix. This is a dual core Android smartphone with 1GB of RAM and Motorola’s “Webtop” software, which allows it to look and act like a full PC when loaded into the desktop dock (with monitor, keyboard, and mouse) and the laptop dock.

Now imagine if the Atrix and other dual core smartphones could perform the same feat, but without having to dock at all by simply using Wireless USB — which offers plenty to speed to accomplish this with 480Mbps at 3 meters and 110Mbps at 10 meters. Suddenly, a lot of smartphones would become potential PC replacements. Same goes for tablets. They could wirelessly dock and become full desktop computers when people needed to do more serious work. Since virtually all smartphones and tablets are powered by mobile ARM chips rather than Intel chips (and Intel has repeatedly been unable to break into the mobile market), this scenario could be apocalyptic for Intel because it would enable people to replace (Intel-powered) laptops and desktops with (ARM-powered) smartphones and tablets.

However, this scenario would be fantastic for consumers and business professionals. But, without Intel to push Wireless USB, who will step up and lead the charge? I’m looking at you, NVIDIA, Qualcomm, Motorola, and Samsung.

This was originally published on TechRepublic.

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Jason Hiner is the Editor in Chief of TechRepublic. He writes about the products, people, and ideas that are revolutionizing business with technology.

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Jason Hiner

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RE: Forget Intel's Thunderbolt, Wireless USB is the game-changer
jb510 13th Apr 2011
Where have you been the last couple years? Wireless USB is out, it's clunky and slow and already dying off because of it.

Wireless USB _tops out_ at 110Mbps, that's a quarter the speed of USB 2.0, an already painfully slow connection.

At 110Mbps WUSB isn't suitable for much around a modern computer. What would WUSB be good for that isn't already handled better by something else? Mice/keyboards/tablets are already handled well by Bluetooth and printers are already better handled much better by WiFi.
" Sure, Thunderbolt will deliver faster file transfers"

One thing people keep ignoring in these discussions is that the data sources, whether a high-speed cable modem, hard disks, or even SSD's, can't provide the data fast enough. Yes, there are SSD's that can provide 450+Mbps read speeds, but they are ridiculously expensive and will remain so compared to hard disks for the foreseeable future.

I totally agree that wireless USB and getting rid of the HUGE clutter would be far more helpful than ultra high speed. At home I have sitting right next to each other two desktops, a third one I almost never use, a wireless router/hub/DSL modem and two laser printers (one color, one mono), a 2-PC KVM switch, a wireless keyboard, a 24" LCD monitor, and an external USB I occasionally use for backups. I would LOVE to be able to get rid of the rat's nest of wires connecting everything. That would improve things much more than superspeed transfer with WD or Seagate consumer 7200RPM hard disks.
@Rick_R
I'm sure a slick RAID array would achieve much higher throughput. Since I edit a lot of video, throughput is essential.
@stromley Are there now RAID cards that can stripe over four or more drives and have one large drive as the mirror? happy
@caseyh

yet another reason for 10Gbit/s thunderbolt (and against 'up to' at best 'real throughput' of 4Gbit/s USB3 and probably far lower ), is that thunderbolt is made with and for, multi protocols (USB3 is not) in mind from day one, and so you can have a simple software "ethernet/iSCSI Over thunderbolt" patch, port that to for instance FreeNAS and be using raided ethernet/iSCS over thunderbolt in seconds.

you dont need a raid card , just get a FreeNAS livecd
http://sourceforge.net/projects/freenas/
, stick a bunch of drives in an old PC with lots of HD ports/cards and boot that.

OC to get better network throughput , you will also want to Bond several 1 gigabit/s Ethernet together with crossover cables between your PC's until a real thunderbolt 10Gbit/s "ethernet Over thunderbolt" card kit becomes available, but even antiquated 1Gbit/s RJ45 ethernet should get you started on the right path
@Rick_R
I just read your thoughts about the rats nest of wires... I thought I would just pass this on since it has help reduce the need for a KVM switch and associated wires and that is using Synergy--its a software KVM solution.

Just thought I would share....

Michael
@SaipanMan95

Synergy is a software KM solution. When it shares Video, it will be true KVM... one keybard, one monitor, one mouse.
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@Rick_R
Input Director is another great software KVM option, although it's Windows only.
@Rick_R
"SSD's that can provide 450+Mbps read speeds"
that's MBps (MegaBytes per second) , not Mbps (Megabits per second), your way off base , there's 8 times more speed in these than you imply as hard drives and the like are measured in bytes per second not bits per second (there are 8 bits to a single byte).

450 MegaBytes per second= 3.515625 Gigabit/s
800 MegaBytes per second= 6.25 Gigabit/s
1280 MegaBytes per second= 10 Gigabit/s

wake me up when even 11n can do even a real life data throughput of 400 Mbit/s (remember Megabits/s) from and to every new 11n device, even this lowly 110Mbps at 10 meters is totally theoretical fantasy today, 70Megabit/s is more probable at best on a good day line of sight.

as for low speed (anything below 100Mbit real life throughput at 3 foot) PAN (personal area Networks), sure they may have a place at some point.

but PAN cant ever replace the far more useful longer range generic wireless and by longer range im talking at least 100 meters/300 feet at a real 1Gigabit/s real life data throughput at home/SOHO price points, not the current 1Gigabit/s commercial grade 2.4 microwave point to point kit.
@Rick_R
The first shortfall is that even a single spindle hard drive already is bottlenecked by *wired* USB2, and for guidance on what wireless USB could become, we should lean heavily on the real world performance of 802.11n, the reality that wired USB3 has a ~30% overhead, and other technology realities, such as Spectrum Allocation and multiple wireless devices competing for the same finite spectrum space.

Personally, I've already seen full uncompressed 1080p HD video be streamed wirelessly .. in a lab. Impressive, but that's what can be done when a single device is given around 5GHz of bandwidth to itself in a clean spectrum space.

Next, you're still not going to be able to eliminate wires. Pesky little problem called "power". As such, you're just as well off going with a non-USB protocol that has ample power piggybacked in its signal cable for a "one cable" solution.

Finally, there's already ample customer demand for more bandwidth than even what's being promised here even if all of their performance fantasies came true. People have already voted with their wallets, be it by buying Firewire 800 or by buying eSATA.

And FWIW, my desktop system is also a rat's nest nightmare. But it is a desktop system, so its not like I'm moving it every day. If I had to do it over right now, I'd get Ethernet (or maybe wireless) printers...but do note of the eight or so hard disk spindles that surround me, not a single one of them is running on USB. The performance hit simply isn't acceptable, even for my "hobbyist" level of digital photography needs.

-hh
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@-hh
There is a soloution to eliminating the power wires that has been posible for quite some time. You place power pickup coils in the bottom of the laptop or other devices and have a desk area with the power transmition coils built into it. To charge the laptop or even a cellphone you simply place them on the charging area. Imagine desks at your home or office and tables at internet cafes with this technology built into them! The transmition coils could be designed to supply upto 24 volts for instance and the power pickup coils in the device could just grab the correct voltage such as 12 to 19volts most laptops use ore 4.5 to 6 volts most cellphones use.
All --

Don't forget that wireless devices still need to be charged. Unless Wireless USB docks will include standardized ports to plug into for charging, we'll be stuck with the current landscape of expensive and proprietary chargers.
@Churlish
The progression on charging wireless devices might be like what logitech is doing with their keyboards. Their new one uses solar panels and claims that it can store enough to power your keyboard for 3 months in total darkness and that a desk lamp is sufficient enough to power the device.
with Apple, which provided physical port (miniDisplayPort it invented)/logic/motherboard engineering and implementation.

Intel-only thing is USB 3.0; but for Apple it was not enough, so they pushed more. Apple has history of developing I/O standards (including FireWire), so it knows what it wants.
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Apple has developed several standard.
magallanes 4th Mar 2011
@denisrs

Like Firewire and... nothing else much. The rest has been to be an "Early Adopters", aka guinea pigs.
@denisrs FireWire? What's that? I mean, I've heard of it, but never seen it, except on a few high-end video cameras, which are now being replaced by HDD or DVD cameras, which can connect via USB...

It went the same way as the BetaMax and the LaserDisc...good idea, but too late to be effective...
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FireWire
kg6ygs@... 4th Mar 2011
@Viktor_Kruug
FireWire, AKA IEEE 1394 has been around for quite some time, since the mid-1990s, and was intended to be a replacement for SCSI; its actual throughput is much faster than USB 2.0 (even if the theoretical throughput is not), making it quite popular with video cameras, hard drives, and similar devices that require sustained high speed throughput. Unlike USB, FireWire can be daisy-chained, so one FireWire port can accommodate more than one device. For a time, most tape-based video cameras were FireWire based, though that is now a thing of the past. Its main drawback is price, as they are more expensive than comparable USB devices. As I do a lot of video editing, and store a lot of these files on large, high capacity drives, the fast, sustained throughput was the deal maker. And, yes, there are still a lot of FireWire devices out there.
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FireWire's Not Dead
kg6ygs@... 4th Mar 2011
@Viktor_Kruug
FireWire, AKA IEEE 1394 has been around for quite some time, since the mid-1990s, and was intended to be a replacement for SCSI; its actual throughput is much faster than USB 2.0 (even if the theoretical throughput is not), making it quite popular with video cameras, hard drives, and similar devices that require sustained high speed throughput. Unlike USB, FireWire can be daisy-chained, so one FireWire port can accommodate more than one device. For a time, most tape-based video cameras were FireWire based, though that is now a thing of the past. Its main drawback is price, as they are more expensive than comparable USB devices. As I do a lot of video editing, and store a lot of these files on large, high capacity drives, the fast, sustained throughput was the deal maker. And, yes, there are still a lot of FireWire devices out there.
@Viktor_Kruug
Lol exactly. We have firewire on the mac in the recording studio as it did transfer faster then usb but it is a pain. Its more or less and apple only tech and Steve Jobs hated to admit it was a dead technology and will no longer be used. he is betting on thunderbolt but as we all know that means thunderbolt will be very limitedly used usb 3 will win out and I am sure be bumped quickly for a new version. the backwards compatibility alone makes it the winner...Hmm a comment saying you can't daisy chain usbs only firewire...well i plug 1 usb cord into my laptop which splits it into a 6 plug hub and I plug right into all of them meaning basdically I just daisy chained the way you explained it with fire wire kg6ygs...
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@Viktor_Kruug

The Raptor uses it, I think.

"Unlike USB, FireWire can be daisy-chained" Seriously, there are still advocates of choke chains?

What camera do you have that transmits data at 800Mbps?
@Fletchguy
A USB Hub is NOT daisy chaining (not even close) on the other hand most tech I've used that allowed daisy chaining has usually been a pain, if you need to pull a device out of the middle of the chain you lose either the entire chain, or everything outside of that device.
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Where have you been...
david.hunt@... 6th Mar 2011
@Viktor_Kruug Just about every medium to high end Intel based laptop has FireWire as a standard port. Not that I've ever used it, but it is there anyway. It is also standard on all Macs.

It seems that it is mostly used by people doing video capture from dedicated video cameras (as opposed to the dinky little USB video call cameras).
@denisrs

Not really. Very little of this originated within Apple. The silicon is pretty much all Intel. MiniDisplayPort? Please. Next you'll want to shower accolades on Apple for choosing the FireWire plug (recall Sony had their own non-powered i-Link version because they got tired of waiting on Apple's whims when the company was rudderless) that had already been common on the Nintendo GameBoy.

This is Intel's baby. Apple supplied a major PR boost in exchange for getting to be first to ship the technology on their platform. How much value this represents is debatable. If it doesn't get wide availability on the standard PC it'll languish in super-high-end obscurity and deliver little value to most Mac buyers who'll settle for lesser performance in exchange for more accessible prices. Fortunately, since this is Intel's product, they aren't likely to stupidly price themselves out of widespread adoption, as Apple did long ago with FireWire by trying to extract significant royalties on each port included on a device, and consequently creating the market for USB 2.0 where FireWire should been the standard. It isn't clear whether Jobs has ever accepted blame for screwing up on that one.
@epobirs
Fortunately, since this is Intel's product, they aren't likely to stupidly price themselves out of widespread adoption, as Apple did long ago with FireWire by trying to extract significant royalties on each port included on a device, and consequently creating the market for USB 2.0 where FireWire should been the standard. It isn't clear whether Jobs has ever accepted blame for screwing up on that one.

Originally the licensing fee was $1 per port, in 1999 the price dropped to $0.25 per pert. How is that "trying to extract significant royalties on each port included on a device?? When it was new, a $1 per port is not a big deal, how much would the cost of an $800 computer go up if it had two FireWire Ports? What 0.025%?

http://www.macobserver.com/news/99/may/990512/newfirewirelincensing.html

I think that Microsoft?s shenanigans had more to do with it than, the licensing fees. Reducing an 800 Mbs connection to 100 Mbs, while promoting USB 2.

http://support.microsoft.com/kb/885222
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Wireless is *always* less secure
wolf_z 3rd Mar 2011
Folks, even with encryption this is *radio*, it's already possible for LeCroy protocol analysers to automatically decrypt traffic as long as it hears the initial handshaking...

What do you want? Ease of use/less cables, or your life savings?
@wolf_z they want cloud computing, so someone else can keep their information and go through it for them.
@wolf_z Thank you, its about time someone pointed out the obvious flaw in this guys argument. And personally, (though I do like wireless peripherals for media), if I'm working or playing on a computer I prefer wired. I never have to worry about batteries and they're cheaper.
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obvious next step since the very earliest WinMo phones, if not even before that. It's clearly coming and Intel knows it full well. But they're smart enough to crack the smartphone market so theyre probably pretty confident they'll still be ok. They'll have only themselves to blame if they dont since they'll have had a decade to get ready for it. And there'll still be a decent market for lightpeak in datacenter and home/corporate networking. But not thunderbolt, it'll be optic.
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@Johnny Vegas

Thunderbolt IS Lightpeak made to run over copper, it'll switch to optical as soon as cable costs come down.
@Johnny Vegas if a smartphone cab get powerful enough, I can see this being an ideal solution. It must support at least two high res panels and be able to run multiple applications before I would consider it.
@Al_nyc

Then all I would need is to connect to my ipad for a larger screen and pull out my wireless apple keyboard and we are in business.
Is it just me or is Thunderbolt one of the dumbest tech product names I have ever heard? It sounds like a 5 year old came up with the name. Go ahead, tell any non-tech friend that your new Mac has this great new feature called Thunderbolt. When they pick themselves up off the floor laughing 15 minutes later you can explain to them that you are not making it up, it actually exists and actually has that name.
@Goldie07
you just have poor taste.. I think it sounds super!
@doh123 I wouldn't throw "poor taste" out there...
You do realize there's no such thing as a thunderbolt, right? Lighting bolt yes...
But this is about as backwoods hillbilly of a name as it comes - starting with the misnomer, and carrying the full negative marketing power of the ignorance that such a misnomer might imply.

But great that you think it sounds super. No doubt some highly educated executive shares your opinion.
Welcome to modern America. We've lowered our standards for your convenience.
@geolemon
http://dictionary.reference.com/browse/thunderbolt
I think you should look at that link to see the definition of what a thunderbolt is. You're obviously mistaken as to the word.
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@Goldie07

I don't think this guy would have appreciated you laughing at his name.

http://adbonline.anu.edu.au/biogs/A060379b.htm
@Goldie07

I think the name is so that Intel can keep it to themselves. It will be interesting to see if this type of connectivity takes off if Intel will even allow their competitors to use it or if they do charge huge licensing fees. That is the advantage of things like USB. It is a computer standard and anyone can use it. Proprietary connectivity sucks so if you can only get this on a Intel chipset board it will probably make it a niche product.
@Goldie07
"Firewire" comes to mind...
@Goldie07
OK, what would YOU have named it??
@Goldie07
I think it is a good name because the logo on the connector is clearly identifiable as a thunderbolt. Many users can't tell an Ethernet cable from a USB cable, so this is important. The USB logo is very hard to see and it's much too easy to try to put the connector in upside down unless you look at it closely.
@mself2
Actually it's a very bad choice for the icon because it's suspiciously close to a shock warning logo.

http://www.freestockphotos.biz/stockphoto/1075#
@mself2

No such visible thing as a Thunderbolt. Lightning Bolt, but not Thunderbolt.
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@mself2
Using the thunderbolt symbol on a connector is a bad idea!
I have seen a thunderbolt type symbol used to mark the power port on a small number of devices I have owned over the years, so it could be confusing. The thunderbot symbol is also widly used world wide to represent high voltage. It is quite common to see fences marked with a thunderbot symbol to warn they are an electric fence. Mind you from a distance the firewire symbol looks a tiny bit like the trefoil symbol that is used to indicate radioactive material!
@Goldie07 Not really, we had "Firewire", "LightScribe" before, and I rather have that kind of names instead of acronyms: SATA, IDE, USB, HDMI, DP, MiniDP, etc. and it's good marketing..
@Goldie07

who cares what its called , people only care that real life data throughput 10Gbit/s interconnects becomes widely available.

you should be happy that those mac heads are paying for the initial expensive mass production and bug testing run's i know i am grin

shame the ipad2 didn't have the 10Gbit/s Thunderbolt controllers included as the cost's for everyone else would have come down quicker grin

as Steve didn't have the vision to include it there, that means we need to encourage them to buy the more expensive upgraded 10Gbit/s Thunderbolt machines now and that's a harder sell....
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Some of us might think that...
godsfault 6th Mar 2011
@Goldie07 isn't all that slick either.

There's no accounting for taste.
@Goldie07
And SCSI is better?
Absoulutely right! There are several WUSB enabled new products targetting Wireless Destop scenarios such as Samsung Wireless Monitor(CentralStation CA-750) which was spotlighted in 2011 CES and Toshiba Wireless Dock (Dynadock W20).
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Wireless USB??
bobiroc 3rd Mar 2011
How is that any different than a WiFi capable device? I mean they already have WiFi capable printers/scanners, external hard drives and other items that can be uses as WiFi USB adaptors. So essentially I think Wireless USB is here already in some form using standard WiFi. Now the trick is to get the speeds up. I believe the wireless standard being developed called IEEE 802.16m is supposed to be achieve 1Gbps WiFi.
to you say less than 1 meter. It is primarily for connecting devices where only a 1 to 1 connection makes sense, like a keyboard, mouse, or monitor. Of course a printer can go either way.

It also helps for security.
Where have you been the last couple years? Wireless USB is out, it's clunky and slow and already dying off because of it.

Wireless USB _tops out_ at 110Mbps, that's a quarter the speed of USB 2.0, an already painfully slow connection.

At 110Mbps WUSB isn't suitable for much around a modern computer. What would WUSB be good for that isn't already handled better by something else? Mice/keyboards/tablets are already handled well by Bluetooth and printers are already better handled much better by WiFi.

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