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Experimental 4G Phone Service Faster Than Cable 231
JymBrittain writes "NewScientist reports that Japanese researchers have achieved blistering rates of transmission for cell phones that allowed for viewing of 32 high definition video streams, while traveling in an automobile at 20 kilometers per hour. From the article: "Officials from NTT DoCoMo say the phones could receive data at 100 megabits per second on the move and at up to a gigabit per second while static. At this rate, an entire DVD could be downloaded within a minute." These transmission rates were achieved using new experimental methods of multiplexing."
Yay! (Score:5, Funny)
Re:Yay! (Score:5, Funny)
Re:Yay! (Score:3, Funny)
"Whoa, those babies are huge -- I think..."
Re:Imagine the fee ! (Score:2, Informative)
Re:Imagine the fee ! (Score:2)
Sadly (Score:2)
Wow (Score:4, Insightful)
Re:Wow (Score:2)
It just means they can rake up your bill much faster.
Re:Wow (Score:3, Insightful)
Re:Wow (Score:3, Insightful)
A friend of mine (also in Kyoto) is on 100Mbit fiber, and I think for her the bottleneck is finding places which actually provide content at that speed.
I'd figure it was the same for any of the larger cities, so the better question is where in Japan are you?
Re:Wow (Score:5, Interesting)
Hey now. Some parts of the US aren't quite as far behind as others
For example, in my city they are just finishing installation of a citywide fiber network [iprovo.net]. Very freaking awesome, but what's better is that I can get (and am going to) an amazing Internet connection [mstarmetro.net]. For $40/mo I get 20Mbps download and upload with a public IP. That's right, $40/mo, and when I asked about running my own server they said, "That's fine, just don't host anything illegal." Double that and you get unlimited local and long distance VoIP and local cable in addition to 20Mbps Internet.
See? Fiber really is good for you!
Re:Wow (Score:5, Funny)
You bastard.
Can I come live with you?
BYU (Score:2)
More on topic (though still technically FAR afield from actual topic), what do you mean about "not being able to stand it?" I mean, it's still America. Live and let live and all that.
Re:BYU (Score:2)
Bring it on biotches! Crusade!
Uh, unless of course you're busy or something. You know, I'm sure we could reschedule for another time if it's inconvenient, or just call this year a tie. After all it's just a silly little game...
Re:Mormon Culture would damper that idea (Score:3, Informative)
Oh, cry me a river. So what if ISPs are required of offer the customer the optional filtering of content? What's wrong with a government responding to the wishes of the people? Different areas have different laws, and Utah parents decided they wanted to be able to cont
Unfortunately... (Score:2, Funny)
20 kilometers per hour! (Score:5, Funny)
OMG, that's incredible.
Re:20 kilometers per hour! (Score:2)
Cruisin' now baby!
Re:20 kilometers per hour! (Score:3, Funny)
Hmmm, thats suspiciously close to the maximum speed one can unroll a fiber cable
Re:20 kilometers per hour! (Score:2)
Home Usage? (Score:3, Insightful)
Re:Home Usage? (Score:2)
Re:Home Usage? (Score:2)
Re:Home Usage? (Score:2)
Just for reference I am looking at various wireless solutions here simply due to the fact that the landlord is unwilling to allow me to add cable service and DSL is out
Re:Home Usage? (Score:2)
20 kmph? (Score:3, Informative)
For the metric challenged 20 kmph is about 12 mph.
Somebody else can supply the furlongs per fortnight.
Re:20 kmph? (Score:5, Funny)
http://www.google.ca/search?hl=en&q=20+kilometers
20 kilometers per hour = 33 404.9153 furlongs per fortnight
Re:20 kmph? (Score:4, Funny)
the furlongs per fortnight
Here you are: 12 mph equals to 32 256 furlongs per fortnight.
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Scientific Proof:- Size, Weight and Cost of a bit (Score:2, Funny)
Because there are 40 rods in a furlong you could also say this is equal to 53,437,440 rods per month.
More relevent for the
Re:20 kmph? (Score:3, Insightful)
Re:20 kmph? (Score:2)
I know in London prior to the congestion charges, the average travel speed across the city had dropped over the last 100 years! Modern mass marketing/media makes it very easy to convince us that 'not-going-anywhere' is equal to 'progress'.
A minute? Sure... (Score:5, Interesting)
Regular consumer pc having drives fast enough to get a dvd in a minute? Good thing we nerds get to the good stuff before anyone else.
Re:A minute? Sure... (Score:5, Informative)
It's not about a device having enough memory to hold the download - it is about having a pipe that can push large amounts of data. Streaming video/audio, which will come to a handset or other mobile device thru the air.
I think the DVD comparison is more about size than content.
There is no need for movies to be gb's when viewed on a handset - As an example, my phone (Motorola E680i) plays
If you talk about a 7" widescreen LCD for use in a car, then you would see files larger, but again, nothing along the lines of 5+gb.
The content won't be targeted for download and storage, just streaming. Of course, some of us will find an excuse to archive it, but that's another story...
Re:A minute? Sure... (Score:2)
(btw, only on slashdot would the GP post be modded up and your post still unmodded...)
Re:A minute? Sure... (Score:2)
Thanks, NTT DoCoMo Officials, for the perspective (Score:5, Funny)
At this rate the technology will never reach the USA. Thanks for pointing that out right away jerks.
Re:Thanks, NTT DoCoMo Officials, for the perspecti (Score:3, Insightful)
It would break the cardinal rule of mobile technology over here, mainly "give them the least service for the most money to maximize profits".
N.
Re:Thanks, NTT DoCoMo Officials, for the perspecti (Score:2)
Re:Thanks, NTT DoCoMo Officials, for the perspecti (Score:2, Insightful)
Re:Thanks, NTT DoCoMo Officials, for the perspecti (Score:3, Insightful)
What about my nads? (Score:5, Funny)
Re:What about my nads? (Score:2)
Re:What about my nads? (Score:3, Funny)
You post on Slashdot.
You won't ever be close enough to a girl to even find out.
Re:What about my nads? (Score:3, Funny)
In other news... (Score:5, Funny)
Just what I always wanted... (Score:5, Funny)
This remids me.... (Score:5, Funny)
Neither, there's no f'ing cell receiption between Amarillo and Dallas. Thought that was a math problem huh?!
Re:This remids me.... (Score:3, Funny)
Yeah, and our trains are still late...
FAQ (Score:4, Interesting)
Get a Vodafone Simply and go read People magazine instead of slashdot.
2. Yeah, that's great and all, but when do we get this for our laptops?
The same time we get it for our phones. While irda and bluetooth can't handle these kinds of rates, usb, wireless usb or the next generation connection interface will. (4G is still years and years away)
Re:FAQ -people magazine (Score:4, Informative)
my God
nah i go back to watching whatever boring movie she just rented
hmm returning to phones
well i just look at my all-featured EDGE/GPRS/whatever cameraphone and wonder if it is fun to send pictures each other and stuff
But what if there was 1 million of them (Score:5, Insightful)
Re:But what if there was 1 million of them (Score:5, Interesting)
Also, I seem to remember that one part of the multiplexing ideas for 4G was too use differently oriented antennas, dynamically adapting a signal mixing scheme to filter out the signal minus most interferences and echos, as those shouldn't be uniform for different polarizations. Therefore, saying that there simply can't be enough available bandwidth in the air isn't that relevant. We are still far from the theoretical maximums, and this kind of approach also opens the possibility of nearby transmitters sharing the same frequency with less jamming. Sure, these numbers might be optimistic, but if proper multiplexing gets into the standard, 4G will be far more interesting from a technological standpoint than 3G. Did I mention lower transmission power? (at least when not maxing the connection)
Re:But what if there was 1 million of them (Score:2)
There will be lots and lots of high-speed short-range wireless relays. The relays will service a limited number of communicators within a finite range, as well as other relays (which will carry the signal further on.)
There will be gradiations in range, if I understand right. Some wireless devices will go only a few feet, like bluetooth. Others will extend further, further, and still further. My suspicion is that the larger, more far
Re:But what if there was 1 million of them (Score:2)
Re:But what if there was 1 million of them (Score:2)
But that's precisely what it would be used for. Verizon has their new V-Cast service (I'm not sure of the tech specifics on that, I'm a Cingular guy), and that's used to push corporate-created media out to the phones of people wh
Re:But what if there was 1 million of them (Score:2)
A base station is designed for a small area (maybe a radius of 1-2km; depending on how crowded the area is).
However, the data rate mentioned in the article was likely just a single user.
I guess you'd multiply the data rate by the number of available channels, then divide by the number of people using the service on a particular base station.
Welcome to the world's most powerful technological (Score:5, Funny)
Re:Welcome to the world's most powerful technologi (Score:2)
Fast connections are not uncommon and I could certainly have found a place to live with one if that was my only priority. If you're just trying to get a decent place to live, weighing all things, you MAY
Re:Welcome to the world's most powerful technologi (Score:2)
Re:Welcome to the world's most powerful technologi (Score:2)
Well - I care - because that is totally wrong.
CAT-5 cables which are standard ethernet cables are a RJ-45 Connection.
From Wikipedia:
Re:Welcome to the world's most powerful technologi (Score:2)
And as for RJ-61, this quote from wikipedia sums it up best:
You mean 30Mbit (Score:2)
But the cost... (Score:5, Insightful)
Surely it's gotta be cheaper to just buy a helicopter and fly to the video store.
Ohh Japan! (Score:2, Funny)
Sigh.... (Score:5, Interesting)
It is fine for 1 cellphone to receive 100Mbps.
But how does it scale? Remember, there will be about 10000 users within range of a base. Can the base pump out 1Tbps of data? (Remember, the users could be watching live HD video at the same time).
Re:Sigh.... (Score:3, Interesting)
Now true, I have no assumptions about how it is going to work in the field when there are multiple u
Re:Sigh.... (Score:2)
Yes, they do oversell capacity, every provider in the US does to an extreme extent which is why I am very careful in my recommendations about which service providers a particular client goes with when I
Gentlemen start your servers (Score:2, Insightful)
High speed connectivity on the go would be a dream come true for big time movie, music and software pirates.
LK
Re:Gentlemen start your servers (Score:2)
Re:Gentlemen start your servers (Score:2)
LK
Re:Gentlemen start your servers (Score:2)
It would be cheaper for the pirates to fly pirated DVDs to the end users in a private jet.
4G 4HowMany? (Score:3, Informative)
Real mobile broadband isn't going to be addressed until perhaps phased array antennas let us share the same frequency with many physically separated transponders. Then we'll be multiply info capacity in the same radiation bandwidth. There might be some interim solutions with bittorrent-style swarms, which increase available network capacity directly proportionally to the number of nodes crowded into a space. But latency and the possiblity of high simultaneous demand for nonredundant objects make that protocol unsuitable for people's personal phones. 4G research will have juicy fruits. But these research results aren't bringing mobile wrist-TV phones to the masses anytime soon.
Re:4G 4HowMany? (Score:2)
I don't know what dinky little town your ISP services, but most ISPs serving hundred
Re:4G 4HowMany? (Score:2)
And who is to say that you can't have multiple 155Mbps "access points" on this network, running on different channels, much like 802.11 networks?
Re:4G 4HowMany? (Score:2)
Re:4G 4HowMany? (Score:2)
Hmm, I'll believe that bandwidth when I see it... (Score:2, Insightful)
As a 3G user that rarely achieves 200kbps out of the originally-hyped 2Mbps, even in the the best-served parts of London, I think at least a 10-fold scaling of expectation-to-promise is in order here.
As pointed out, data prices will have to scale too!
Rgds
Damon
Oh don't worry they will scale (Score:2)
Oh that wasn't what you were hoping for? Though. The mobile phone companies had a cash cow fluke with SMS and have since been trying to emulate it. They gave us WAP wich was like the internet except without the content, cheapness, user content, freedom, speed, images, a keyboard, a screen. GPRS was the next thing, so it was still like WAP but more expensive. UMTS, yet more expensive.
Oh prices should come down as more people use it. But n
/. reported 3 times the speed over a year ago (Score:5, Interesting)
Posted by CmdrTaco on 06:55 AM June 2nd, 2004
from the and-i-still-can't-get-cable dept.
haunebu writes "'Your brand-spankin'-new 3G phone is nearing obsolesence: NTT DoCoMo reveals the results from a new 4G test system.' says TheFeature. While in a car moving at 30kph, DoCoMo engineers managed a peak throughput of 300Mbps and a sustained transfer rate of 135Mbps with their new variable spreading factor orthogonal frequency code division multiplexing (WSF-OFCDM) downstream technology. Who comes up with these names, and how does Japan manage to stay lightyears ahead of everyone else in wireless?"
4g phone? (Score:3, Funny)
Re:4g phone? (Score:2)
An ant could pick it up.
some corrections and comments (Score:2, Interesting)
2) It heavily depends on the protocol on top of the multiplexing: 3G allows high bandwidth, because a single phone can be served by multiple base stations (=masts). However, as we already saw with GPRS [wikipedia.org] and WAP [wikipedia.org], if the protocol is bad (voice had more priority than data packets; hand overs between base stations could not treat data connections very well too), the whole service will die (=no more WAP).
3
Cable will use a similiar tech in the near future (Score:5, Interesting)
Something to the effect of:
Old
699Mhz 11111111
New
699Mhz 1
689Mhz 1
679Mhz 1
669Mhz 1
659Mhz 1
649Mhz 1
639Mhz 1
629Mhz 1
It probably will take 6mhz, not 10mhz but by allowing some space between the carriers it avoids some noise between them.
Re: (Score:2)
Meshing Cells (Score:2)
What we really need are more Iridium phones (Score:2)
We need to get Iridium capability into lower-priced handsets. Yes, airtime costs $1.49 per minute [roadpost.com], but sometimes you need to get through. This is more useful than 4G, or even 3G. What we have now goes out as soon as you get five miles off the Interstate in hilly rural terrain.
Re:What we really need are more Iridium phones (Score:2)
"new experimental methods" not that new (Score:2)
This is referring to spatial multiplexing, which is one of the possible ways to exploit the potential of MIMO systems. True, MIMO wireless communication systems aren't very established yet, but they are anything but new or experimental. IEEE 802.11n will be based on MIMO, so the technology has left the "experimental" stage already a few years ago.
Sure, there's still a lot of research in MIMO wireless communication, it's
Latency (Score:2)
32 chanels on a mobile? (Score:2)
Hey I can't watch 32 channels on my 32 inch tv, let along my 3.2 inch mobile/pda, and that is sat still!
Still, wow... *tingle* looks like this is AWEEESSSSOOOME!!!!
YEY.
What significance does the 20kph have? (Score:2, Interesting)
Was the transmission aerial/basestation moving to follow the car? Why is it relevant?
(I know a few years ago I had a lecture from a telecoms guy who mentioned moving aerials for 3G etc, but I didn't realise they were ready to be used)
DG
Ouch... (Score:3, Funny)
Re:The Math is All WRONG! 6000 megabits!=dvd!!!!!! (Score:2)
And, yeah, in practice I get lackluster GPRS performance many times on the road (not to mention on hi-speed trains), but that's another story. GSM and WCDMA should, theoretically, handle the within-cell scenario quite well, and I
Re:The Math is All WRONG! 6000 megabits!=dvd!!!!!! (Score:2)
Equates to six seconds, give or take. Add in your errors to account for the "give or take."
Also see http://www.google.com/search?hl=en&lr=&q=6000+meg
Re:ALL OTHER COMPANIES ARE WASTING THERE R&D (Score:2)
Re:ALL OTHER COMPANIES ARE WASTING THERE R&D (Score:2)
Re:ALL OTHER COMPANIES ARE WASTING THERE R&D (Score:2)
Re:all crap!!! (Score:2)
Re:all crap!!! (Score:2)
However, bitching about new services phone companies offer has nothing to do with that problem. Believe it or not, everyone is not like you. Some people want their phone to do more than just make calls because it would be convenient for them. Don't come and tell me I'm not allowed to watch TV or play games on my p
Re:memory issues (Score:2)