Jump to content
Sign in to follow this  
bigsnake49

Wild speculation about Dish

Recommended Posts

On 12/6/2017 at 4:16 AM, Trip said:

If 700 isn't low-band, then other than 600 (which they also hold), what is?  FM?  Shortwave?  Except for 600, there's nothing lower than 700 even licensed to cell companies.

In mobile, low/mid/high band is defined by uplink, not downlink.  Lower 700 MHz D/E block band 29 has no uplink.

AJ

Share this post


Link to post
Share on other sites
On 12/6/2017 at 10:13 AM, bigsnake49 said:

It could be used for uplink with a midband downlink.

No.  Lower 700 MHz D/E block unpaired spectrum cannot not be used as uplink, only as supplemental downlink.  Look at the band plan.  You cannot shove uplink spectrum in the duplex gap between uplink and downlink.

AJ

Share this post


Link to post
Share on other sites
5 hours ago, bigsnake49 said:

I have also advocated using Band D&E as uplink.

Again, for technical reasons, that uplink is not going to happen.  The Lower 700 MHz D/E blocks were licensed as unpaired broadcast spectrum -- first UHF TV, later mobile broadcaset -- and that basically is how they shall remain.

AJ

Share this post


Link to post
Share on other sites
20 hours ago, lilotimz said:

Separation required for sub 1 ghz frequencies is troublesome. It's why low band inter and intraband CA has not been implemented and 4x4 MIMO on sub 1ghz frequencies at UE level is almost impossible.  

Heck it's almost impossible at the site level. 

Share this post


Link to post
Share on other sites
6 minutes ago, bigsnake49 said:

Heck it's almost impossible at the site level. 

Not exactly impossible.  Verizon and T-Mobile both have widespread lowband 4x2 MIMO deployments in the Seattle area....

Share this post


Link to post
Share on other sites
25 minutes ago, RAvirani said:

Not exactly impossible.  Verizon and T-Mobile both have widespread lowband 4x2 MIMO deployments in the Seattle area....

Lots of compromises to achieve it. Are you sure that those are 4x2 low frequency antennas and not mid frequency? 

Edited by bigsnake49

Share this post


Link to post
Share on other sites
1 hour ago, bigsnake49 said:

Lots of compromises to achieve it. Are you sure that those are 4x2 low frequency antennas and not mid frequency? 

Yes 4x2 is live on both low and mid bands for both providers.

We’re seeing mostly 4x2 MIMO on T-Mobile’s 600 MHz towers that are coming up as well. 

Share this post


Link to post
Share on other sites
Yes 4x2 is live on both low and mid bands for both providers.
We’re seeing mostly 4x2 MIMO on T-Mobile’s 600 MHz towers that are coming up as well. 
All 600 MHz equipment are 4x4 radios (4x2 at UE level).

Att and Verizon and in some siteareas Tmobile they're retrofitting sites to 4x4 eNB setups on 700 and 800mhz by using two lowband antennas + two sub 1ghz radios.



Sent from my Pixel using Tapatalk

Share this post


Link to post
Share on other sites
13 minutes ago, lilotimz said:

All 600 MHz equipment are 4x4 radios (4x2 at UE level).

Att and Verizon and in some siteareas Tmobile they're retrofitting sites to 4x4 eNB setups on 700 and 800mhz by using two lowband antennas + two sub 1ghz radios.



Sent from my Pixel using Tapatalk
 

I wonder how they're getting around the isolation/correlation problem at the low bands. Antenna design has totally changed since I took the class :).

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

  • large.unreadcontent.png.6ef00db54e758d06

  • gallery_1_23_9202.png

  • Posts

    • Oh yeah I do not disagree with you there. Satellite Internet is very outdated. As is Dial and DSL.  So I’m interested to see if they actually do rural deployment of 5g
    • not in urban areas, but for rural, yes it will scoop dial up and dsl customers right up, not to mention satellite internet customers 
    • This is one of a few mobilitie small cells I have found in the area. I'm wondering if it is sprint because there is no relay installed. Actually some that had the relay before has since been removed. It looks to be connected to a wire line network... The two underground communication hatches are on the sidewalk and the unnamed one in the landscaping, yards away from the site. As mentioned, one is unnamed and one says Comcast. Let me know what you guys think. Just as a disclaimer, this site wasn't here about two weeks ago. (Midtown Detroit) Also; Verizon is using a completely different vendor in SE Mich so I highly doubt this site is a verizon one.  https://imgur.com/gallery/irfkNzk If I have time i'd like to create a map of all the sprint small cells provided by mobility in SE Mich... stay tuned as my time is limited. 
    • Okay so I managed to make it out to that other wireline mobilitie site today(or yesterday lol whatever haha) It was getting dark so my photos are not the best but here is what I have. (Btw I also included some of the development going on in this area that may have been reason Sprint decided to locate a small cell here. That and well, its pretty close to Ford Field, Comerica Park and Little Caesars Arena.) Again, sorry for the poor lighting but this is definitely another small cell connected by wire-line as apposed to relay. The last few images are construction for a massive development from Bedrock, which is affiliated with Rocket Fiber.(Both part of quicken loans if that matters) They could be providing the backhaul but unfortunately due to lighting the only wire-line on the utility poles i could spot with a name was Comcast; that's not to say there were many other lines on the utility poles. It was just to dark to spot. Anyway;  here it is:  https://imgur.com/a/HTaHdmD Any thoughts? 
    • Okay so I managed to make it out to that other wireline mobilitie site today(or yesterday lol whatever haha) It was getting dark so my photos are not the best but here is what I have. (Btw I also included some of the development going on in this area that may have been reason Sprint decided to locate a small cell here. That and well, its pretty close to Ford Field, Comerica Park and Little Caesars Arena.) Again, sorry for the poor lighting but this is definitely another small cell connected by wire-line as apposed to relay. The last few images are construction for a massive development from Bedrock, which is affiliated with Rocket Fiber.(Both part of quicken loans if that matters) They could be providing the backhaul but unfortunately due to lighting the only wire-line on the utility poles i could spot with a name was Comcast; that's not to say there were many other lines on the utility poles. It was just to dark to spot. Anyway;  here it is:  https://imgur.com/a/HTaHdmD Any thoughts?   
  • Recently Browsing

    No registered users viewing this page.

×