An Introduction To Wireless USB (WUSB) 330
An anonymous reader writes "This technical whitepaper by Rafael Kolic, a technology marketing manager in Intel's Corporate Technology Group, introduces Wireless USB (WUSB) and explains how it will impact device performance and mobility. The latest iteration of USB technology, WUSB will offer the same functionality as standard wired USB devices -- but without the cabling."
Doesn't this already exist? (Score:5, Informative)
From the Bluetooth SIG Mission Statement [bluetooth.com]:
Develop, publish and promote the preferred short-range wireless specification for connecting mobile products...
Re:Doesn't this already exist? (Score:5, Insightful)
Re:Doesn't this already exist? (Score:5, Interesting)
Re:Doesn't this already exist? (Score:5, Interesting)
Also, this is designed to compete in a different space. While it can do the things that Bluetooth does, it's also designed to be used by hard drives and other devices that require MUCH more bandwidth than is available with Bluetooth. Maybe when it's updated, but right now you just couldn't use it for a hard drive or to connect your 5MP digital camera.
Re:Doesn't this already exist? (Score:5, Insightful)
Smarter in the sense of "the best networks are dumb, and innovation happens at the edges"?
Let's have a protocol that's as easy to solder to a PCB as RS232 is with no licensing requirements, a spec that fits on 2 pages of A4, and controller chips that you can buy in Maplin. Then we might get somewhere with this wireless idea...
No! Re:Doesn't this already exist? (Score:4, Insightful)
The Bluetooth specs include shared access to a noisy medium, so theres a lot of pages to the specification just to get that working. Want to see how many pages of specs relating to the various networks there are? Including the actual media, the signal as well as the bottom layer protocols?
Bluetooth also includes a lot of bluetooth profiles. This are roughly equivalent to the HTTP, SMTP, IMAP etc specs as used for internet services. You want to see how many of those can fit on two pages?
The only reason bluetoth has innovation happening at the edges is because the in-between is the ether.
You want something as simple as 2 pages and a bit of soldering? How about morse code and AM modulation, cos thats all you'll get.
Sam
Re:Doesn't this already exist? (Score:3, Insightful)
"WUSB will offer the same functionality as standard wired USB devices -- but without the cabling"
does that mean that i can still have small devices draw power from the bus? wireless power transmision sounds good to me
Re:Doesn't this already exist? (Score:4, Interesting)
Re:Doesn't this already exist? (Score:5, Informative)
thats pretty much bluetooth's market sewn up. while it's true that most desktop's don't come with BT as standard, some do and it's only a 17 usb dongle away. I got a dlink BT dongle for my mac and it works like a charm to speak to my siemens mobile phone, I just wish the prices of BT memory sticks for my clie weren't so outrageous.
sure it's not overly fast but it is easy and convenient and works. I thought it was doing pretty well.
dave
PS. saying that, has anyone else seen a bit of incompartibility between apple's bluetooth stack and a siemens mobile phone? I can sync over BT fine but sending txt's via it is problematical. it says everything is fine but alot of the time the txt's don't get sent. anyone else?
Re:Doesn't this already exist? (Score:5, Insightful)
Unfortunately Bluetooth arose in an age where it was already outdated, as our devices quickly became too powerful for this dismal standard.
I'm really excited about wireless USB, especially if cheap solutions allow us to convert wired to wireless. I work in a high tech classroom with digital smartboards and a stereoscopic wall, and one of the problems we're having is connecting devices (such as cameras and microphones for video conferencing) from the classroom back to the computer closet behind everything. The normal cables just don't reach, so we have to either use a series of repeaters, or USB to ethernet converters, both of which are nontrivial in price.
Of course if they could develop cheaper wifi chips, everything could just have an 802.11x interface and you could network any devices, so maybe what we'll see is a happy medium between bluetooth and wifi.
Re:Doesn't this already exist? (Score:5, Insightful)
It comes down to what you need.
802.11* is a high speed standard for replacing much of the Ethernet wiring. Great for mobile devices that have good sized batteries (i.e. laptops).
Bluetooth went the other direction. Instead of focusing on speed, why not power? Bluetooth has a much lower power requirement, and at ~760kbps makes a great way for cell phones (which are currently in the ~128kbps range) to talk to small, low power devices (like a palm or WinCE or Zaurus).
I recently had the choice of PDAs to get one with bluetooth or 802.11. I took the bluetooth and so far have not had any regrets about it. Of course, my laptop has both 802.11 and bluetooth in it.
Re:Doesn't this already exist? (Score:5, Insightful)
It's been said again and again, but I'll do it again for fun if nothing else: if you need a very high speed connection, plug the damn thing in.
Here's the design philosophy for wireless communications, and for all things, really:
1: Make it cheap
2: Make it fast
3: Make it so it dosen't suck energy like a muscle car sucks gas.
Chose two.
It will hold true always. There will always be a solution that, while not the fastest, accompolishs most things that one could wish to do with it, be more cost effective, and use less energy.
Guess what? Bluetooth is that solution.
Re:Doesn't this already exist? (Score:5, Interesting)
And if you read this "introduction" it's CLEARLY positioning WUSB for things like in-the-home high-capacity connectivity for devices where you're rather not have wires (eg HomeTheater, they specifically talk about bandwidth consumption of HDTV streams etc).
Very muchly *not* what BlueTooth is aimed at.
Re:Doesn't this already exist? (Score:5, Insightful)
I can understand a bluetooth iPod or other mobile device, but for electronics equipment that sits in your house, wires work better. For example, I don't see why people put up with crappy 10-55 Mb/s Wifi when standard cabling is so cheap! Likewise, why do you want wireless HDTV for home theater? It seems to offer little benefit for stationary equipment. I think it has more to do with conspicuous consumption (oh look at how hip I am with the tech!) than practical benefits.
Re:Doesn't this already exist? (Score:5, Insightful)
Wireless is freedom, and it doesn't require you to snake wires through your walls (which is a major bitch in most cases if you want to do it right -- i.e. not running it through an air return and then hanging the wire around your baseboards). The few times I've really had the need for 100Mbps (versus the 36Mbps I'm currently getting over 802.11g, up on the second floor with the WAP in the basement), I'll bring the laptop to the basement and plug-in, but otherwise this whole wireless thing is fabulous.
Re:Doesn't this already exist? (Score:4, Insightful)
dave
Re:Doesn't this already exist? (Score:2, Interesting)
Serial > USB > WUSB
Ethernet > WiFi
??? > Bluetooth
Bluetooth is a much smarter protocol that allows you to build a PAN - something you'll need if you have 2 PCs with WUSB in the same vicinity...
maybe WUSB stands for Wireless Ultra-Smart Bluetooth or something, but to all intents and purposes, it sounds like choice is getting in the way of standards again... *sigh*
No, no no... (Score:5, Funny)
Power Requirements (Score:4, Insightful)
Wireless USB Power requirements [deviceforge.com]: 300 mw ("with a target of 100 over time")
Bluetooth power requirements [catc.com]: 100 mW, 2.5 mW, 1 mW (the last two are class 2 and 3, the variants widely used.)
Frankly, wireless USB sounds less interesting to me. Well, it's a threat to Wifi, from the sound of it. It's really, really fast and power hungry. It sounds primarily for unwiring our desk-bound, non-mobile computer peripherals from the computer. But then we will have to plug them all into the wall instead. So there are a few that had power anyway and now we've cut the number of cables from 2 to 1 - OK. But quite a few the only cable was USB (and that was providing power) anyway. It wouldn't be a viable solution for things like wireless mouses and keyboards, for instance. And I don't think I'd want that instead of bluetooth for the PDA/phone or PDA/computer link.
There are a lot of applications where very low power (1 mw!) is much more important than bandwidth.
Re:Doesn't this already exist? (Score:3, Funny)
There's obviously some mods here with a sense of humor.
The point is, bluetooth doesn't live up to what it originally promised. Look behind your TV and tell me that bluetooth could be used to solve that mess of cables.
The parent asked why bother with wireless USB when we have bluetooth.
I say it's because bluetooth doesn't have the ability to fix the problem of having a gamecube, a dvd player, a vcr, a TiVo, and a stereo all hooked up together in a giant mess of cables. Wireless USB d
Re:Doesn't this already exist? (Score:3, Insightful)
Netcraft confirms, WUSB is dying. (Score:4, Funny)
They have to do something all day there...
"...without the cabling." (Score:5, Insightful)
Re:"...without the cabling." (Score:5, Interesting)
Re:"...without the cabling." (Score:5, Insightful)
To go back to computing space, there are lots of little USB devices that get power from the bus, and I wouldn't want to have to add batteries to everything. My GBA Flash Cart programmer get's its power from USB. What about USB->serial/parallel converters for when I want to use some of my older stuff? While this would be handy for hard drives and other things that often need seperate power anyways, this could be a pain in other circumstances.
Re:"...without the cabling." (Score:5, Funny)
Oh, and make sure to get big speakers to drown out the racket
And make sure your sofa doesn't have any metal in it.
And keep a fire extinguisher handy.
But aside from that, i'm sure home tesla coils will be a revolutionary addition to the wireless house.
Re:"...without the cabling." (Score:3, Interesting)
Yeah, the wireless power thing is a bit of a problem.
Actually, I'd be happy if manufacturers could just stick to a standard for DC power, then you could buy DC power converters with multiple outlets.
Still I have visions of Tesla coils arcing across the room and frying random parts of the house
Re:"...without the cabling." (Score:5, Interesting)
Re:"...without the cabling." (Score:3, Interesting)
Re:"...without the cabling." (Score:3, Interesting)
That would be cool.
Re:"...without the cabling." (Score:4, Informative)
That's the same as lower power 802.11 cards [rfdesign.com]
Bluetooth chips generally eat less than 40mW, some as little as 20mW [findarticles.com]. I wouldn't put WUSB in a cell-phone.
Neat (Score:5, Insightful)
Methinks a conspiracy!
In all honesty, this looks like quite nice tech though I can imagine some of the implementation will be a real pill. Problems like how to manage roaming a device from one cluster to the next will surely require some ingenuity, especially given that backwards compatibility with classic USB devices is a goal (though I presume that those will only be adjuncts to the cluster, sitting at a wirelesswired bridge).
Bluetooth has fulfilled quite well the idea of a truly ad-hoc network among devices, but I assume that will be a much more difficult thing to achieve with WUSB, making some, I'm sure, doubt the point of the project. I think the idea of devices beaming data around to each other at 480 mbits answers that one quite nicely. I look forward to this*
*linux and OS X support for this; until then, I ain't touchin' it
Re:Neat (Score:4, Informative)
What about range? (Score:5, Insightful)
Re:What about range? (Score:3, Funny)
Re:What about range? (Score:3, Funny)
Re:What about range? (Score:5, Funny)
Re:What about range? (Score:5, Funny)
I'm pretty sure the kid will be occupied h4x0r1n6 the plane's autopilot. So while the ride might get pretty wild, your computer will be safe.
Power (Score:5, Interesting)
Comment removed (Score:4, Funny)
Re:Power (Score:2, Insightful)
Re:Power (Score:3, Funny)
Or maybe wireless power! Imagine having a 4 foot diameter microwave transceiver dish on both your PC and mouse. Not to mention the migraine of biblical proportions you'll get after using said mouse for 5 minutes... Uhm... Scrap that wireless power idea...
Re:Power (Score:5, Interesting)
Read the article, it (for example) talks about using WUSB to connect your HomeTheater setup to your PC for streaming HDTV. Personally I'd prefer to keep my PC in one room and my HT setup in another (for acoustics if nothing else) in which case I'd much rather not have to run cables between the two.
Clearly they're positioning this for the in home digital network. Digital Convergence While you *can* sortof achieve these things with WiFi and IP Streaming, the bottom line is that neither WiFi nor IP Addresses are trivial enough for Grandma to connect hreself.
They envision a world where everyone has a computer (for internet and email) and they want to provide "consumer level" (ie plug it in and it just works) connectivity to it for "just about any computing device in the home".
PLUS this spec talks about device-to-device (USB doesn't do this now?) so think along the lines of Digital Camera-to-Television for viewing Photos (or even videos).
A high-bandwidth plug-and-play connectivity spec without wires opens up a Whole World of opportunity. Suddenly your computer in the study becomes a back-end server to the entire home, display on my HomeTheater Widescreen TV, stream HDTV from my computer (recorded from my DTV STB), pull up photos from my camera onto the TV, pick one and then email it to someone. and none of these devices are wired to each other. When I have guests around, all they see is "a normal living room" big TV, nice speakers and a digital camera on the coffee table. A complete lack of messy wires everywhere (without having to wire everything into the walls - which is generally not an option if you're renting). And the best thing (from a business perspective) is that if you have enough 'tech skills' to drive AOL then you can have a digitally-converged household like this (ie just about anyone is a potential customer, the only limit is disposable income - and we're taoking 'consumer level' here, so it's not big bux).
Re:Power (Score:3, Informative)
No, actually, it *is* easy enough for Grandma, but the problem is that corporate egos are trying as hard as they can to keep this from really working. The problem, as usual, isn't that we have no standard, but rahter that we have at least one too many.
The bottom line: we (users and product designers) are all ca
Re:Power (Score:2)
It's a Microsoft Intellimouse, Wheel, PS/2 version. I'm no fan of Microsoft, but I do like how the Microsoft-branded mice work.
Perhaps your mouse was defective or something...or maybe the batteries you were using were from a bad batch...
--RJ
Wireless keyboard loggers, anyone? (Score:5, Interesting)
I can also see all many nasty opportunities for system flakyness when a computer gets intermitt-tt-ttant contacts with other wireless USB devices and tries to establish a connection.
Re:Wireless keyboard loggers, anyone? (Score:2)
Re:Wireless keyboard loggers, anyone? (Score:5, Insightful)
Of course if so, protocol designers should just define that at lowest protocol level such features are out of scope.. that is, to indicate they had done conscious decision, not that they were ignorant of obvious needs for actual appliances.
Re:Wireless keyboard loggers, anyone? (Score:3, Insightful)
Re:Wireless keyboard loggers, anyone? (Score:3, Insightful)
Because I can't just run an IPSec application on my mouse...
Re:Wireless keyboard loggers, anyone? (Score:4, Funny)
They call them "Divorce Lawyers."
KFG
Wireless for Input Devices? (Score:2, Interesting)
I've had bad experiences with wireless. I'll be sticking to wired devices for years to come yet.
Will die like bluetooth (Score:5, Interesting)
Now wireless.... you'll need batteries or adapters, wont work just everywhere and you'll have to pay motherboard makers to build it in.
Not too many people need short-range wireless interfaces outside of the 802.11a/b/g, which is different
Re:Will die like bluetooth (Score:3, Informative)
FireWire, with 12V, is much more capable. Examples are pocket drives....the USB models all require a brick/adapter. It's a bit of a stretch to give USB too much credit in this department
Re:Will die like bluetooth (Score:3, Informative)
I'm not familiar with Firewire, but Wikipedia says that a Firewire cable can provide 60W of power [wikipedia.org]. That is a hell of a lot more than USB.
-prator
What a relief (Score:2, Insightful)
All of the problems that immediately came to mind, fell under the unsurprisingly vague section Design Considerations.
And none of them seem solved...
Hell, did it even mention what spectrum was being targetted?
Wireless power (Score:4, Interesting)
Uh...this could be (Score:5, Informative)
Re:Uh...this could be (Score:2)
So... (Score:2)
Bluetooth mouse, WUSB mouse, or standard wireless mouse??
--
Re:So... (Score:5, Funny)
Bluetooth mouse, WUSB mouse, or standard wireless mouse??
They'll want a standard wired mouse, thank you very much. All others risk downtime for battery changes.
Not necessarily (Score:2, Interesting)
Re:So... (Score:3, Informative)
Not to mention any lag factors with wireless.
Re:So... (Score:2)
Re:So... (Score:2)
Obvious (Score:4, Funny)
Highlights (Score:5, Informative)
Here are some highlights for those too lazy to skim the article (or in case it gets Slashdotted)...
Handsfree Headsets (Score:2, Insightful)
If not, bluetooth is needed as well.
Quote from CCNA Book (Score:2, Funny)
A wireless serial cable, eh?
Re:Quote from CCNA Book (Score:2)
Spread spectrum is still serial.
I know your post was supposed to be sarcastic, but really it doesn't make much sense.
It's not really wireless... (Score:3, Insightful)
But unless it's a PDA, keyboard, or mouse, it's not going to be wireless, you'll have to plug it into the wall for power. Unless of course, you like buying lots and lots of batteries. Rechargable you say? Find a wireless battery charger and I'll retract.
So, you still have to cable the power cord. I mean, I'm not really saying this wireless stuff is bad, it's not. You can plug in your printer across the room and not have to run the USB/LPT cable.
I guess you have to take the name "wireless" literally, it's not "wirenone" it's just LESS wires.
If this becomes a common standard, however, it would be nice being able to buy *any* wireless USB mouse and not worry about what brand reciever you have. Although, this really isn't a huge issue.. Logitech wireless KB/Mouse stuff is cheap anyways.
I am waiting for.. (Score:3, Funny)
What about wireless Firewire? (Score:5, Funny)
Re:What about wireless Firewire? (Score:3, Funny)
I've done months of research, so I'm sure the name is not being used by anyone else...
</SARCASM>
(BTW, this post was plagarized.... from myself... circa a wireless firewire topic from months ago)
This isn't about bluetooth.. (Score:4, Interesting)
Is Intel going to do this with everything? (Score:3, Funny)
USB was fine for what it was originally designed for. Then Intel had to juice it up a little bit to try to convince people it was better than FireWire. Now they've got Bluetooth in their sights.
I would much rather have several different technologies that each do one or two things exceptionally well, rather than one technology that's trying to be all things to all people.
Microsoft is trying to shoehorn Windows into everything, and look what we've got to show for it: PDAs that need more horsepower than a workstation from five years ago had, BMWs that develop a mind of their own, an albatross of a game console, etc...
It's like Intel is slapping a wig and fake tits on some big, burly truck driver and trying to convice people it's just as good or better than a real woman.
WUSB Hardrives? (Score:3, Insightful)
One major adantage of USB over WUSB (Score:3, Insightful)
A supply of power to the device.
No, seriously, one of the advantages USB is supposed to deliver is that it has a 5v supply that can deliver power to devices so they don't need a power adaptor any more. Sometimes it even works, too - I have an unpowered USB doohickey that I plug my camera media into, for example. Do that with WUSB :-)
Re:Bluetooth (Score:5, Interesting)
Re:Bluetooth (Score:4, Insightful)
Competition between standards makes a lot less sense. With Betamax vs. VHS a lot of people, consumers and manufacturers, wasted a lot of time investing in and supporting the wrong one. (DVD writing is a similar, which was saved in part by the shared form factor). This could easily happen here, though I personally think Bluetooth and WUSB are very different (different topologies, for one thing).
You do have a point though. Some protocols/standards are just better, and there should be competition between groups to get their standard accepted. But this should happen before large-scale adoption of one or the other, to minimise 'damage' to the early adopters. At the moment it looks like Intel is jumping the gun, because its standard is not ratified by the IEEE (the relevant standards agency). Better for everyone if an open standard is agreed by everyone before devices are put on the shelf. Sadly, this doesn't always happen.
bad analogy (Score:3, Interesting)
No; when it comes to infrastructure, standards are a good thing. You can complain about monocultures all you want, but for infrastructure -- a category I am using to describe things like the language you speak, the voltage coming to your house, the broadcast standard encoding your TV signal -- uniformity is good.
New wireless standards
Re:bad analogy (Score:3, Interesting)
If you want to use a road analogy, I say use a travel analogy. You can get from point A to point B in a variety of different ways: plane, train, bus, taxi, your own car, bicycle, walk, etc. Each has advantages and disadvantages, cost considerations and time constraints. The existance of multiple forms of trave
Bill wants you to have it (Score:3, Interesting)
Re:Bill wants you to have it (Score:3, Insightful)
I didn't mean to say that USB was only useful at high speed (although I can see where you take that meaning). I wanted to make two points: One) that Firewire would have been a much better choice when USB came out (in fact is still a better choice) and could have done everything USB could. Sure, mice and keyboards can run on something as god awful slow as usb 1.1 just fine, but there was no valid rea
Re:Bluetooth (Score:3, Insightful)
I'm certain other large firms have things like this using bluetooth. While I have no personal use f
Re:Interesting concept... (Score:2)
Why USB? (Score:5, Funny)
Basic Specs from the Article: (Score:4, Informative)
Security? unknown (better be good)
Power requirements?100-300 mW
Range? 10 meters
Cost? unknown
Number of Devices? 127
Re:How does this excel existing standards? (Score:5, Informative)
Re:How does this excel existing standards? (Score:4, Insightful)
Is it just me or is anyone else in a perpetual state of battery hell? I'm looking at the devices on my desk right now that I use throught my day -- PDA, Graphing Calculator, Cell Phone, Digital Camera, and two MP3 players (one solid state for jogging, one HD based one for trips).
Between all these things I'm drowning in power transformers, docking stations, and battery chargers! I feel like a fleet manager, its practically a full time job making sure everything has power.
Re:Ok... (Score:5, Insightful)
And keyboards? Give me a break! Don't tell me there isn't enough energy coming from my typing, to transmit that information to my computer...
Has anybody worked on this?
I want my patent.
- reid
Re:Ok... (Score:2)
Re:Ok... (Score:3, Interesting)
For the mouse, your best bet would probably be a flywheel or gyro type arrangemen
Re:Ok... (Score:3, Funny)
I don't think this is a bad idea. Think of all the money saved in batteries and/or chargers. I wouldn't mind winding them up, as long as they generated power quietly and my mouse doesn't shoot across the room after I let go like my old Evil Knievel [evelknievel.com] stunt cycle.
Re:Ok... (Score:2)
For the mouse, you could use a standard mechanical mechanism for the movement (as opposed to optical) and connect the movement to little tiny generators that would make a tiny amount of electricity. I bet this could gain a decent amount of energy. This could also be done with magnetic induction if you made a little
Re:Umm (Score:2, Insightful)
Re:Umm (Score:2, Interesting)
Also, it ensures an old PC is forward compatible with new WUSB peripherals, as you can get a WUSB hub for wired USB. No
Re:Loses main advantages of USB (Score:4, Interesting)
These, of course, being things that Bluetooth brings to the table...
WUSB does actually bring high speed with it, whereas Bluetooth, as far as I know, is relatively low speed. WUSB's target is 480MBit, which is pretty fast for wireless.
And I'd like to hear your suggestions for getting wireless power.
Re:bluetooth meet wifi (Score:3, Interesting)
I may be assuming too much here, but I imagine that since WiFi is 802.11 it's based on the existing Ethernet standards. So WiFi has no more to do with IP than the wired version we all know and love. I haven't heard of anyone doing so, but you could probably try running other ethernet-based protocols over WiFi e.g IPX/SPX, Ethertalk, AX.25(?), Token Ring, etc. The devices still use 48-bit MAC addresses and (I could be wrong) similar frame si
Re:bluetooth meet wifi (Score:3, Informative)
WiFi is the lowest two layers of the OSI model: The physical layer (the radios) and the datalink layer (CSMA/CA)
Anything else is software. Network layer, and so on.
Thus -- you can run anything that runs over Ethernet, over WiFi.