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Siemens Develops 1 gbit/sec Wireless Link
jonknee writes "Siemens has developed mobile wireless technology with transfer rates as high as 1 gigbit per second. This blows the doors off of '3G' technology, or EV-DO (the high-speed data technology used by Verizon Wireless and soon by Sprint PCS). Not all the specs are out yet (more info is expected early next year), but it uses three transmitting and four receiving antennas. With any luck the phone in your pocket will have a gigabit link by the year 2015."
How can it be possible to get a cellular data service that's faster than a WiFi LAN?
Also, if this is for real, surely this has implications for the many planned city-wide wifi grids (Wi-Max, etc) and other mobile broadband solutions, as it could make them obsolete very quickly.
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Without the details, it strikes me that this nice bit of hype is entirely pointless.
Great - I 1Gig link. And the power requirements are? And the suspectability to multipath problems in built up areas are? And the size of the antenna on the phone is how big? And the patent issues are what?
Sorry to be such a grumpy old thing, but getting RF technology to work in the lab is one thing. Getting to work in messy, interference soaked urban environments without cooking the user's head is quite another.
With any luck the phone in your pocket will have a gigabit link by the year 2015.
By which time it won't seem that amazing at all.
I'm very skeptical of the viability of this for a consumer market and I'm pretty certain I can get 3 randomly selected users to agree with me. Firstly, the large amounts of antennas would suggest this can't make it outside of a research lab. Secondly, you can't even get 54Mbps without paying thousands of dollars per month WITH WIRES. Maybe they could transmit this much between the tower with a single client (scalability anyone?) but if our current wired infrastructure has trouble managing 100 Mbps then what good will that link be?
Anyway, my point here is that maybe you'll see a speed increase but don't expect anything in the real world faster than a wireless G setup anytime soon. It'd be damn cool though.
"With any luck the phone in your pocket will have a gigabit link by the year 2015."
;-)
Having a phone in your pocket may be obsolete in 2015
Rapid on demand location based services springs to mind, such as detailed maps and directions. As does accessing music files remotely from your own PC. That'd be nice. Maybe more expansive travel information such as realtime traffic or flight data. I'm sure these would become more and more useful given a large hike in bandwidth.
As somone more intelligent than myself said, "if you build it, they will come.".
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Spamming, virus and worm spread, spyware, DoS attacks ... the possibilities are endless!
SCNR
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This article is interesting in the standard kind of wow, high bandwidth wireless kind of way. However, as wireless LAN technologies become more long distance (Wi-Max) and cellular technologies become more high bandwidth (this article), when will the two converge into a united space?
I know there is a difference in the licensing of the spectrum, but disregarding governmental interferences, prevents wireless LAN and cellular from essentially becoming the same type of standard?
It's not oversimplified to say that, in fact it's a common practice. In QAM modulation systems (Quadrature and Amplitude Modulation), "complex amplitude" (i.e. amplitude + phase) modulates a waveform with not just two values (+1 and -1) but four values (1, i, -1, -i) or more...
The set of amplitude values is represented in the complex plane as a "constellation". At the receiving end, you have to "recover" the amplitude and the phase of the emitted signal, which is the process of synchronisation.
In cable (coaxial) networks, where attenuation is lower than in free-range transmissions, 64-QAM or even 256-QAM (a modulations with 256 complex values, an 16x16 square in the complex plane) is commonly used.
Power and range do limit the effectiveness of modulations. In GPRS/EDGE packet radio, for example, QAM schemes are varied as a function of radio conditions to avoid using too ambitious of a modulation for what the channel can support.