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(MIT Technology Review)   Good: 5G wireless is coming, with gigabit data speeds. Bad: Devices must have 64 antennas, so your mini smartphone may be as big as a minivan   (technologyreview.com) divider line 27
    More: Interesting, wireless, speeds, smartphones  
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1950 clicks; posted to Geek » on 24 May 2013 at 8:18 AM (1 year ago)   |  Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»



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2013-05-24 08:20:13 AM
static.thefullsignal.com
 
2013-05-24 08:26:13 AM
Devices have 64 antennas subby? Did we read the same article?
 
2013-05-24 08:52:33 AM
I want Google Glasses with 64 antennas.
 
2013-05-24 08:54:46 AM
Worst: 5G will be wasted on subby.  Can't read, doesn't understand.
 
2013-05-24 09:11:17 AM
Samsung says it has greatly mitigated these problems by sending data over  as many as 64 streams from 64 antennas, dynamically shaping how the signal is divided up, and even controlling the direction in which it is sent, making changes in tens of nanoseconds in response to changing conditions (among other features, it can catch stray reflections of signals that had bounced off an obstruction).

Yes, it says 64 antennas, but not as an absolute requirement. I'm sure goal one will be to mitigate propagation problems using fewer antennas. And really, how big does a 28gHz antenna need to be, anyway?
 
2013-05-24 09:24:09 AM
Oh so i'll be able to blow through my data cap in 5 seconds then?
 
2013-05-24 09:36:17 AM

xenophon10k: Samsung says it has greatly mitigated these problems by sending data over  as many as 64 streams from 64 antennas, dynamically shaping how the signal is divided up, and even controlling the direction in which it is sent, making changes in tens of nanoseconds in response to changing conditions (among other features, it can catch stray reflections of signals that had bounced off an obstruction).

Yes, it says 64 antennas, but not as an absolute requirement. I'm sure goal one will be to mitigate propagation problems using fewer antennas. And really, how big does a 28gHz antenna need to be, anyway?


Well, I have a 28 MHz antenna on my car that is about 8.5' long or roughly 2,591mm , so a 280 MHz antenna would be 259.1mm (a bit over 1 foot, roughly), a 2.8 GHz antenna would be 25.9mm, or about an inch, and a 28 GHz would be about 2.6mm long.
 
2013-05-24 10:19:03 AM
Awesome! Now I can blow through my 2GB monthly data cap in only 16 seconds!
 
2013-05-24 10:19:29 AM
"so your mini smartphone may be as big as a minivan"

The Samsung fans just accepted your challenge.
 
2013-05-24 10:28:03 AM
I'd be happy to get 4G on my 4G phone....
 
2013-05-24 10:34:31 AM
I would be happy with 4g as long as they actually provided good coverage.  I've been dealing with spotty reception for like 10 years now.
 
2013-05-24 10:45:55 AM
while that is a cool speed to be cruising on, I gave to question how much thouht went intobthe r and d.

"guys, we need to advance wireless technology.. by making it transmit and recieve 32 slow-ass streams rather than 1-2 fast ones."

granted my knowledge of spectrum is rudementary at best, this seems like a very lazy idea.
 
2013-05-24 10:47:27 AM
goddamnit I didn't proof read enough as you can see. typing on galaxy farking sucks.

/sorry
 
2013-05-24 11:00:05 AM
We haven't even reached 4G specifications yet in LTE, so how are we going to get to 5G?
 
2013-05-24 11:39:03 AM

xenophon10k: And really, how big does a 28gHz antenna need to be, anyway?


0.010714285714285714 meters, assuming 300000000 m/s speed of light.
 
2013-05-24 11:56:09 AM
And what's Apple doing push technology forward, besides counting the mountains of money from their sycophant fans?

Oh...that's right...that's all they do.

//Samsung innovates while Apple merely markets.
 
2013-05-24 01:05:48 PM

spickus: I'd be happy to get 4G on my 4G phone....


Ditto, I have US Cellular and they plan to get LTE in my area by the end of Q3. Hope that's right so I can get some real use out of this phone
 
2013-05-24 01:10:07 PM
I wish they'd take a phone generation or two to focus purely on battery life. I don't even use my phone's 4G because it drains the battery so fast, so I can only imagine what 5G would do. Heck even using 3G instead of Wifi drains it faster than I'd like. Forget EVERYTHING ELSE and just make the batteries way better for once, please!
 
2013-05-24 02:22:12 PM

BioStormX: I wish they'd take a phone generation or two to focus purely on battery life. I don't even use my phone's 4G because it drains the battery so fast, so I can only imagine what 5G would do. Heck even using 3G instead of Wifi drains it faster than I'd like. Forget EVERYTHING ELSE and just make the batteries way better for once, please!


Unfortunately, improving battery life is one of those hard challenges where you're fighting basic physical and chemical limits on a system. The best bet, right now, for improving energy density for compact devices is probably ultracapacitors (although I've heard of work with mini-fuel cells), but that's still in development (and does have the unfortunate drawback of making your device potentially explosive).

In all likelihood, any real improvements in battery life, in the near term, are going to be driven by low power chip manufacturing.
 
2013-05-24 02:24:13 PM

xenophon10k: Samsung says it has greatly mitigated these problems by sending data over  as many as 64 streams from 64 antennas, dynamically shaping how the signal is divided up, and even controlling the direction in which it is sent, making changes in tens of nanoseconds in response to changing conditions (among other features, it can catch stray reflections of signals that had bounced off an obstruction).

Yes, it says 64 antennas, but not as an absolute requirement. I'm sure goal one will be to mitigate propagation problems using fewer antennas. And really, how big does a 28gHz antenna need to be, anyway?


Not very big but the reason so many antennas are required is to get around propagation problems at shorter wavelengths. In reality, the full 64x64 version will probably be used for things like wireless home internet where you can have a base station instead of copper to your house.

Mobile phones will benefit too but likely not as much.
 
2013-05-24 02:29:20 PM
upload.wikimedia.org
"Because it's a surprisingly accurate description!"
 
2013-05-24 03:00:39 PM
Maybe it'll only be $79 a gig this time
 
2013-05-24 03:03:33 PM

Some 'Splainin' To Do: BioStormX: I wish they'd take a phone generation or two to focus purely on battery life. I don't even use my phone's 4G because it drains the battery so fast, so I can only imagine what 5G would do. Heck even using 3G instead of Wifi drains it faster than I'd like. Forget EVERYTHING ELSE and just make the batteries way better for once, please!

Unfortunately, improving battery life is one of those hard challenges where you're fighting basic physical and chemical limits on a system. The best bet, right now, for improving energy density for compact devices is probably ultracapacitors (although I've heard of work with mini-fuel cells), but that's still in development (and does have the unfortunate drawback of making your device potentially explosive).

In all likelihood, any real improvements in battery life, in the near term, are going to be driven by low power chip manufacturing.


Yes, but basic power mgmt wouldnt kill anyone. Because of verizon's ridiculous limitations, my phone searches for a wifi network every minute Im away from home
 
2013-05-24 03:18:45 PM
just FYI, you dont have data caps you have $$ caps
 
2013-05-24 03:32:19 PM
How good is this device at cat detection?
 
2013-05-24 07:46:43 PM
Would said minivan have a placard indicating it is from the Ministry of Housinge?
 
2013-05-25 09:59:19 AM
Wake me when actual 4G, not marketing 4G, is broadly available in the USA. Then we'll worry about 5G.
 
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