Embedded Systems Conference
Breaking News
Comments
Oldest First | Newest First | Threaded View
Page 1 / 3   >   >>
rick merritt
User Rank
Author
39 GHz in your smartphone
rick merritt   1/10/2014 12:56:40 PM
NO RATINGS
OK, wireless engineers, I'd like to hear what kind of challenges we will need to tackle to get to a 2020 smartphone that roams from 2 and 39 GHz for cellular service.

krisi
User Rank
Author
Re: 39 GHz in your smartphone
krisi   1/10/2014 5:15:33 PM
NO RATINGS
Rick, how is 5G defined? 4G is 1 Gb/s throughput for stationary links I think, what is the corresponding number for 5G? and why do we need 5G? isn't 1 Gb/s enough? do we need to watch HD movies on msart phones? Kris

Yog-Sothoth
User Rank
Author
Re: 39 GHz in your smartphone
Yog-Sothoth   1/10/2014 7:37:25 PM
NO RATINGS
Given that even 2.4GHz wifi works with a range of about 5 metres max in my house due to the nature of the walls,  I don't think 60 GHz will really cut it.

I could not get a cellular signal from a 1800Mhz provider in my house , despite being less than a mile away from the base station. Only a 900Mhz signal would go through the trees in the way...

"Ye canna change the laws of physics" as a certain engineer once said...

 

 

 

 

Les_Slater
User Rank
Author
Beam forming phased array antennas
Les_Slater   1/10/2014 7:58:16 PM
NO RATINGS
28 or 39 GHz will not work in all scenerios but will in many. Beam forming will be key at both the mobile end and at the base station. Also terrain mapping for reflective surfaces in urban environments as well as attenuation factors through walls.

The mobile device will need higher accuracy location mechanisms and orientation info to report to base stations so beam forming will be colabrative effort.

Seemless handoff of course, not only geography, including obstructions but bands too.

_hm
User Rank
Author
28GHz or 39GHz - Is this mm wave?
_hm   1/10/2014 9:48:57 PM
NO RATINGS
I wonder can we call 28GHz and 38GHz mmwave?

 

Les_Slater
User Rank
Author
Re: 28GHz or 39GHz - Is this mm wave?
Les_Slater   1/10/2014 10:31:00 PM
If I'm doing my math right then 39GHz is 7.7mm and 28GHz is 10.7mm. Sounds millimeterish to me.

Caleb Kraft
User Rank
Author
Re: 39 GHz in your smartphone
Caleb Kraft   1/11/2014 3:19:55 PM
NO RATINGS
Aside from the definition of what 5G is, do you honestly believe there will ever be a point where everyone just sits back and says "you know what? We've got enough."?

daleste
User Rank
Author
Re: 39 GHz in your smartphone
daleste   1/11/2014 7:42:27 PM
NO RATINGS
Its just like everything else.  We will always push for more.  If the cost structure will support it, then 5G will succeed and I doubt it will be the last.

Les_Slater
User Rank
Author
Re: 39 GHz in your smartphone
Les_Slater   1/11/2014 7:50:52 PM
NO RATINGS
Interesting question. Very few, if any, could have foreseen where we would be today, let's say 50 years ago in 1964. But I think we might be better equipped to approach the question going forward.

How much data do we need local access to? For instance, would it even be desirable to have all financial transactions in the world, on a real time basis, go through our personal mobile device? It would need to be a very powerful mobile device to make use of such enormous quantities of data. I'm sure we could find more efficient ways to get the desired results.

The real question is how much unique information could be available to a mobile device that would be useful to transmit? These could include biomentric information, precise location and orientation information and various user inputs like voice, camera, keyboard etc. And what information needs to be received to present, control, or otherwise be useful.

Another is that each mobile device, or other categories, could be a peer to peer part of some sort of mesh type network. But even here, maybe especially, each node would carry a small part of aggrigate traffic.

I believe the future will bring better understanding of how much data personal mobile devices need and there will be a useful limit, not defined by RF capability but by utility.

Ephi2014
User Rank
Author
Re: 39 GHz in your smartphone
Ephi2014   1/11/2014 9:21:09 PM
NO RATINGS
If they would improve the battery life of thus damn smart phones ,

Page 1 / 3   >   >>


Most Recent Comments
Top Comments of the Week
Like Us on Facebook

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Max Maxfield

ESC Boston 2015 Sneak Peek! Embedded Systems That Glow in the Dark
Max Maxfield
Post a comment
Some time ago, I asked my mom what she knew about radiation. She replied that she didn't know much about it at all; all she did know was that she didn't want to be in the same room as ...

Chris Wiltz, Managing Editor, Design News

10 Greatest Hoaxes in the History of Engineering
Chris Wiltz, Managing Editor, Design News
5 comments
You'll probably be reading your fair share of fake headlines on April 1, but phony tech news - both for scams and humor - aren't anything new. The history of science and technology is rife ...

Bernard Cole

A Book For All Reasons
Bernard Cole
3 comments
Robert Oshana's recent book "Software Engineering for Embedded Systems (Newnes/Elsevier)," written and edited with Mark Kraeling, is a 'book for all reasons.' At almost 1,200 pages, it ...

latest comment mjlinden Thanks for your input!
Martin Rowe

Leonard Nimoy, We'll Miss you
Martin Rowe
5 comments
Like many of you, I was saddened to hear the news of Leonard Nimoy's death. His Star Trek character Mr. Spock was an inspiration to many of us who entered technical fields.

Special Video Section
After a four-year absence, Infineon returns to Mobile World ...
A laptop’s 65-watt adapter can be made 6 times smaller and ...
An industry network should have device and data security at ...
The LTC2975 is a four-channel PMBus Power System Manager ...
In this video, a new high speed CMOS output comparator ...
The LT8640 is a 42V, 5A synchronous step-down regulator ...
The LTC2000 high-speed DAC has low noise and excellent ...
How do you protect the load and ensure output continues to ...
General-purpose DACs have applications in instrumentation, ...
Linear Technology demonstrates its latest measurement ...
10:29
Demos from Maxim Integrated at Electronica 2014 show ...
Bosch CEO Stefan Finkbeiner shows off latest combo and ...
STMicroelectronics demoed this simple gesture control ...
Keysight shows you what signals lurk in real-time at 510MHz ...
TE Connectivity's clear-plastic, full-size model car shows ...
Why culture makes Linear Tech a winner.
Recently formed Architects of Modern Power consortium ...
Specially modified Corvette C7 Stingray responds to ex Indy ...
Avago’s ACPL-K30T is the first solid-state driver qualified ...
NXP launches its line of multi-gate, multifunction, ...
Radio
LATEST ARCHIVED BROADCAST
EE Times Senior Technical Editor Martin Rowe will interview EMC engineer Kenneth Wyatt.
Flash Poll