Jump to content

How much of the 900 Mhz band being used?


ericdabbs

Recommended Posts

That will never happen -- at least, not anytime soon. Such would displace some public safety users a second time. Not to mention, it would not make a whit of difference in the Southeast, as SouthernLINC occupies the Guard band, Expansion band, and part of the B/ILT non cellular band.

 

Sprint is just going to have to be satisfied that it finally has any <1 GHz spectrum for CDMA1X and LTE.

 

AJ

 

You're right AJ! I bit of wishful thinking on my part. On the other hand I never understood why they did not move PS down to the 700MHz PS band that is right below the 800Mhz PS band.

Link to comment
Share on other sites

You're right AJ! I bit of wishful thinking on my part. On the other hand I never understood why they did not move PS down to the 700MHz PS band that is right below the 800Mhz PS band.

 

Absolutely. It makes little sense to 1) reconfigure the SMR 800 MHz band to protect public safety, then 2) while that process is still ongoing, open up the Upper 700 MHz D block + Public Safety 34 MHz license, which includes 12 MHz allotted to narrowband operations (a la those in the SMR 800 MHz band).

 

Call it a matter of bad timing. Had the Upper 700 MHz band been licensed a few years earlier, then public safety likely could have been relocated entirely out of the SMR 800 MHz band.

 

AJ

Link to comment
Share on other sites

To bring some greater clarity to the SMR 900 MHz discussion, I have cooked up another of my famous graphs.

 

smr900mhz.png

 

Note the interleaved nature of the SMR blocks; B/ILT blocks occupy the channels in between. At the very least, this is why Sprint cannot currently utilize its SMR 900 MHz holdings for CDMA1X or LTE.

 

AJ

 

It might be my faulty memory, but I seem to recall that there was a lot of speculative buying of 900MHz B/ILT spectrum speculating that Sprint/Nextel would be forced to buy them out.

Link to comment
Share on other sites

  • 11 months later...

To bring some greater clarity to the SMR 900 MHz discussion, I have cooked up another of my famous graphs.

 

smr900mhz.png

 

Note the interleaved nature of the SMR blocks; B/ILT blocks occupy the channels in between. At the very least, this is why Sprint cannot currently utilize its SMR 900 MHz holdings for CDMA1X or LTE.

 

AJ

What exactly does "B/ILT" stand for?  only thing I found via google was "B/ILT Business and Industrial Land Transportation."  Does this mean that some other form of communication is happening in those blocks between the iDen channel blocks?  Who designed this crap, a three year old?

Link to comment
Share on other sites

What exactly does "B/ILT" stand for?  only thing I found via google was "B/ILT Business and Industrial Land Transportation."  Does this mean that some other form of communication is happening in those blocks between the iDen channel blocks?

Correct on both counts.

 

Who designed this crap, a three year old?

Oh, come on. The FCC first established SMR about 30 years ago.  And for years after that, all mobile operations were narrowband, for which the SMR configuration is well suited.  You are playing Monday morning quarterback decades after the fact.

 

AJ

Link to comment
Share on other sites

Oh, come on. The FCC first established SMR about 30 years ago.  And for years after that, all mobile operations were narrowband, for which the SMR configuration is well suited.  You are playing Monday morning quarterback decades after the fact.

 

AJ

Yes I am, I can't see how it is logical to say "Let's design this "ABABABABABABABABABAB?!?"  How about we use logic and go "AAAAAAAAAA" then "BBBBBBBBBB" and the licensee can use that block how every they need it.

  • Like 1
Link to comment
Share on other sites

Since most of the SMR operations were local, it was OK for people to reuse part of the spectrum for one area and have the other part of the spectrum in an adjacent area. with a spatial reuse pattern that minimized interference without expensive filters. Now, my question is what is Sprint going to do with this spectrum after they shut the IDEN network down. Can they trade it to Southern Co in exchange for their spectrum in the Southeast? Can they sell bits and pieces of the IDEN equipment to local companies along with the 900Mhz spectrum?

Link to comment
Share on other sites

Since most of the SMR operations were local, it was OK for people to reuse part of the spectrum for one area and have the other part of the spectrum in an adjacent area. with a spatial reuse pattern that minimized interference without expensive filters. Now, my question is what is Sprint going to do with this spectrum after they shut the IDEN network down. Can they trade it to Southern Co in exchange for their spectrum in the Southeast? Can they sell bits and pieces of the IDEN equipment to local companies along with the 900Mhz spectrum?

Sprint should just make an offer to buy out SoLinc from Southern Company, and Southern Company would transition to using PTToLTE from Sprint. 

Link to comment
Share on other sites

Sprint should just make an offer to buy out SoLinc from Southern Company, and Southern Company would transition to using PTToLTE from Sprint. 

 

Yeah, but have you run this idea by Solinc lately? I don't think they are OK with it. 2, 3 4 years from now, maybe. SouthernCo, want to be in control of their own destiny. I don't blame them, really.

Link to comment
Share on other sites

Yeah, but have you run this idea by Solinc lately? I don't think they are OK with it. 2, 3 4 years from now, maybe. SouthernCo, want to be in control of their own destiny. I don't blame them, really.

Sprint actually has a PTToLTE system they can demo to SoLinc that isn't complete fertilizer now with QChat over LTE. That's a big difference. 

Link to comment
Share on other sites

 

 

Yeah, but have you run this idea by Solinc lately? I don't think they are OK with it. 2, 3 4 years from now, maybe. SouthernCo, want to be in control of their own destiny. I don't blame them, really.

 

 

Sprint actually has a PTToLTE system they can demo to SoLinc that isn't complete fertilizer now with QChat over LTE. That's a big difference.

They would have a ton of sites to convert to get them the coverage they need in that area.

 

Sent from my little Note2

 

 

  • Like 1
Link to comment
Share on other sites

They would have a ton of sites to convert to get them the coverage they need in that area.

 

Sent from my little Note2

 

 

They would have a ton of sites to convert to get them the coverage they need in that area.

 

Sent from my little Note2

Solinc's coverage is really freaking solid. If Sprint wants to duplicate their coverage, then yes. Where is this PTToLTE product you're speaking about? Oh, it's demo? When they actually have a working product over their whole network, then they can have Solinc test it. 

Link to comment
Share on other sites

There was a guy who used to post here that had family working in SoLinc, just about everything he said has come to fruition.  SoLinc isn't so much a public mobile company, but a two-way radio service for Southern Companies.  They don't care if it loses money, because the overall company rakes it in hand over fist and they need the radio service.

 

Sprint couldn't offer SoLinc enough money for its spectrum to get them to say yes...

  • Like 1
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

    • Was in Red Hook again and I swear there are more Link5G sites as there are Verizon, T-Mobile, and AT&T small cells combined in the entire neighborhood. It seemed like every other street I turned down had one installed. Hopefully carriers will start hopping on them soon. Seems like a lot of effort to go through for no one to use them.  — — — — — T-Mobile converted the Sprint site on top of NYU Langone Brooklyn in Sunset Park. I first mapped one sector of it back in November 2023 but I thought it was a small cell so I never pinned it but I ran into another sector today which caught me off guard. I'm unable to find a permit for the conversion so it's definitely a surprise. There's another T-Mobile site 1 block away that T-Mobile initially installed back in 2019 so I'm kinda surprised they're keeping both considering the Sprint conversion is on a much taller building and could potentially provide much better coverage to the entire area.  — — — — — The old permit expired for this site without any work being done but a new permit was just approved a few days ago for a T-Mobile site at this address. Description mentions 3 antennas with 2 RRUs per sector. My guess is they're doing something similar to what they did at 360 Furman St in Brooklyn where they broadcast Band 2/66 and n25/41 from one antenna. It's a bit of a downgrade considering the site it's replacing was a full build with Ericsson 6449s. 
    • Still not seeing any ULS postings for pending T-Mobile UScellular merger in Dane county Wisconsin.
    • Came across another Crown Castle Solutions multi-tenant oDAS node in Brooklyn. Located at 40.7002286, -73.9612666. Nothing on T-Mobile or AT&T so I'm assuming these are all Verizon nodes that Crown Castle is anticipating another carrier will hop on down the line.
    • Same with factory unlocked
    • June security update is out (S22U TMO)
  • Recently Browsing

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