Jump to content

Millimeter Frequencies Proposed for 5G


Guest 503ducati

Recommended Posts

Guest 503ducati

Since this is over my head, anyone believe this could come to fruition?

 

 

 

http://www.dailywire...roposed-for-5g/

 

 

Researchers at Polytechnic Institute of New York University have assembled a consortium of government and business support to develop technology that could potentially increase cell phone capacity by more than 1,000 times. The 5G project hopes to develop the 80 GHz band using smaller, lighter antennas with directional beamforming to bounce signals off of buildings. The uncrowded millimeter-wave spectrum, has 50 to 100 times more user capacity is readily available. Smaller, smarter cells would cooperate rather than compete for spectrum.

Edited by 503ducati
  • Like 1
Link to comment
Share on other sites

  • 4 months later...
Guest 503ducati

More here: http://www.dailywire...over-100-miles/

 

 

DARPA has begun development of a wireless communications link that is capable of 100 gigabits per second over a range of 200 kilometers (124mi), reports Extreme Tech. Officially dubbed “100 Gb/s RF Backbone” (or 100G for short), the program will provide the US military with networks that are around 500 times faster than its current wireless links.

 

“A major challenge to providing 100 Gb/s from an airborne asset to the ground is cloud cover. Free-space optical links won’t propagate through the cloud layer, which means RF is the only option”, says Darpa

 

The Common Data Link (CDL) is a secure wireless protocol that networks together UAVs, aircraft carriers, helicopters, forward operating bases. How exactly, DARPA plans to squeeze out 100 Gbps on a 100 mile link (without lasers) is not clear. Currently the US military’s existing CDL links max out at around 250Mbps.

 

The EHF band at 60-80 GHz can routinely deliver more than 1 Gbps today. There is 12.9 gigahertz of spectrum allocated for commercial use in the 71-95 GHz bands.

 

Wireless gear capable of over 1 Gbps is available from Alcatel, Alvarion, Bridgewave, Ceragon, Cisco, DragonWave, Exalt, LightPointe, Gigabeam, Proxim’s GigaLink, Trango, and Ubiquiti AirFiber among others.

 

Presumably it will use the 70-80 GHz band, lots of MIMO and several Gigs of bandwidth.

 

The 802.11ad standard uses 60 GHz and has some 2 GHz of usable bandwidth. Mark Gradzinsky of Wilocity, a proponent of the 802.11ad standard, told me today that there was lots of room for speed improvements with MIMO and other techniques that could likely take it beyond 10 Gbps.

 

Using 16×16 MIMO-OFDM on a 20 MHz channel delivers 1 Gbps. If you multiply the bandwidth by 100 (2 GHz), you might get 100 Mbps on the 70 GHz band. Easy.

 

Presumably, if enough of these things can get built by the “deadline” next week, their inherent tractor beam could be utilized to steer any doomsday comet away from colliding with Earth.

Link to comment
Share on other sites

The 80 GHz band can provide over 1 Gbps to each device. And when you hold an 80 GHz phone up to your mouth to make a phone call, it also offers a free dental X-ray.

 

AJ

  • Like 2
Link to comment
Share on other sites

Is there any out-of-pocket co-pay?

 

...only if you are roaming outside of your preferred provider network.

 

AJ

Link to comment
Share on other sites

Guest 503ducati

The 80 GHz band can provide over 1 Gbps to each device. And when you hold an 80 GHz phone up to your mouth to make a phone call, it also offers a free dental X-ray.

 

AJ

So they're going to bundle?

 

 

:P

 

 

It will be interesting to see what type of applications they come up with.

Link to comment
Share on other sites

It would be OK for a downlink. Plenty of bandwidth. Uplink, not so much.

 

I'm interested in learning more about this.

What is the ideal amount of higher frequency for downlink to match uplink (or the relation ship of these two)?

 

What is the feasibility of AT&T using WCS for downlink and PCS for uplink?

 

Would this connection behave more like a purely WCS or PCS connection (propagation and speed wise)?

 

Sent from my SPH-L710 using Tapatalk 2

 

 

Link to comment
Share on other sites

I'm interested in learning more about this.

What is the ideal amount of higher frequency for downlink to match uplink (or the relation ship of these two)?

 

What is the feasibility of AT&T using WCS for downlink and PCS for uplink?

 

Would this connection behave more like a purely WCS or PCS connection (propagation and speed wise)?

 

Sent from my SPH-L710 using Tapatalk 2

 

I would have to see statistics on what is the current demand for uplink vs downlink. With Carrier aggregation technology, they can use WCS for downlink. Of course they will have to get the approval of FCC with respect to interference with adjacent bands.

 

However I'm not sold on 80GHz as a point to multipoint tech yet. Point to point, yes. I would like to see the fruits of this research.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • large.unreadcontent.png.6ef00db54e758d06

  • gallery_1_23_9202.png

  • Posts

    • A heavy n41 overlay as an acquisition condition would be a win for customers, and eventually a win for T-Mobile as that might be enough to preclude VZW/AT&T adding C-Band for FWA due to spreading the market too thinly (which means T-Mobile would just have local WISPs/wireline ISPs as competition). USCC spacing (which is likely for contiguous 700 MHz LTE coverage in rural areas) isn't going to be enough for contiguous n41 anyway, and I doubt they'll densify enough to get there.
    • Boost Infinite with a rainbow SIM (you can get it SIM-only) is the cheapest way, at $25/mo, to my knowledge; the cheaper Boost Mobile plans don't run on Dish native. Check Phonescoop for n70 support on a given phone; the Moto G 5G from last year may be the cheapest unlocked phone with n70 though data speeds aren't as good as something with an X70 or better modem.
    • Continuing the USCC discussion, if T-Mobile does a full equipment swap at all of USCC's sites, which they probably will for vendor consistency, and if they include 2.5 on all of those sites, which they probably will as they definitely have economies of scale on the base stations, that'll represent a massive capacity increase in those areas over what USCC had, and maybe a coverage increase since n71 will get deployed everywhere and B71 will get deployed any time T-Mobile has at least 25x25, and maybe where they have 20x20. Assuming this deal goes through (I'm betting it does), I figure I'll see contiguous coverage in the area of southern IL where I was attempting to roam on USCC the last time I was there, though it might be late next year before that switchover happens.
    • Forgot to post this, but a few weeks ago I got to visit these small cells myself! They're spread around Grant park and the surrounding areas, but unfortunately none of the mmwave cells made it outside of the parks along the lake into the rest of downtown. I did spot some n41 small cells around downtown, but they seemed to be older deployments limited to 100mhz and performed poorly.    
    • What is the cheapest way to try Dish's wireless network?  Over the past year I've seen them add their equipment to just about every cell site here, I'm assuming just go through Boost's website?  What phones are Dish native?  
  • Recently Browsing

    • No registered users viewing this page.
×
×
  • Create New...