Jump to content

Sprint switches gears, backs FDD rather than TDD plan for 600 MHz auction


Recommended Posts

Wow this is getting uncomfortable.

 

Sorry, Rosanna, but in this thread, we hold the line.  If you want to leave, I'll be over you.

 

AJ

  • Like 5
Link to comment
Share on other sites

I know you may just be throwing that frequency out there but isn't 450Mhz reserved for public safety in the US?  I know in my area, public safety uses 453 and 458 Mhz. 

Also licensed band business radios are in that area too.

Link to comment
Share on other sites

Yeah and they are running CDMA and GSM on it in Russia and GSM (I think) in some of the nordic regions, since the large scale retirement of NMT.

Interestingly, they're actually running a Rev. B Ev-Do network on that spectrum. It's sold as extremely reliable broadband that's usable essentially everywhere in Sweden, Norway, and Denmark. It's expensive for low data usage, 1 GB is $30 a month including taxes and fees (although prices for most things are around 50% higher for everything). 20 GB is $150 though, cheaper than AT&T and Verizon.

 

Sent from my Nexus 5 using Tapatalk

 

 

Link to comment
Share on other sites

Will it be possible for the 600Mhz band to have grouped bands for guaranteed roaming like PCS A-F blocks?

 

Rephrase your question.  It is not clear.

 

AJ

Link to comment
Share on other sites

Sorry.

 

Will (can) the FCC make sure to set the 600Mhz frequency(ies) to be interoperable just like 850Mhz and 1900mhz UMTS/GSM? (And/or CDMA?)

 

I don't know the nitty gritty details of the wireless world yet, please excuse my telecom illiteracy.

What do you mean by "interoperable"? 

Link to comment
Share on other sites

I don't believe there is any 3GPP banding of 600MHz yet. Not enough information is known at this time. No one is even sure how FDD would be applied across a spectrum that will still have TV channels in it.

 

The fact it will not be TDD is amazing to me. If they take half of 600MHz and make it FDD uplink and the other half downlink...it could cause a lot of issues where the downlink channel could be clear, but the uplink channel in the same market has a TV channel in the way.

 

If the FCC is not going to clear all 600MHz from all TV, and wireless broadcasters will have to work around any TV channels that refuse to sell, TDD seems to be the best option so we don't have any wasted spectrum due to a TV channel only blocking a downlink or an uplink FDD channel.

 

Robert via Samsung Note 8.0 using Tapatalk Pro

 

 

  • Like 1
Link to comment
Share on other sites

No decision on banding has been made outside of FDD, as far as I know.

That decision hasn't been made either. Just providers sending in their wish list to regulators.

 

Robert via Samsung Note 8.0 using Tapatalk Pro

 

 

Link to comment
Share on other sites

He wants to know if all off the 600MHz band will be one band class on devices or if it will be a mess like 700MHz where there are multiple incompatible band classes.

 

Well, Lower 700 MHz and Upper 700 MHz are two separate bands because 1) they were auctioned at separate times and 2) Upper 700 MHz necessarily has an inverted duplex.  If 600 MHz goes FDD, it will probably use an inverted duplex.  Other than that, we do not know -- the reverse auction uptake and channel repacking are big question marks that will vary per market and affect the band plan.

 

AJ

  • Like 1
Link to comment
Share on other sites

But if no wants TDD, it won't be TDD.

 

Probably.  But it is not decided, yet.  The industry does not determine, it is the FCC.  There is no decision yet, only opinion.

 

Robert

Link to comment
Share on other sites

Probably.  But it is not decided, yet.  The industry does not determine, it is the FCC.  There is no decision yet, only opinion.

 

Robert

You're right in that no official decision has been made, but the FCC has to make sure AT&T and Verizon are happy.   ;)  

Link to comment
Share on other sites

You're right in that no official decision has been made, but the FCC has to make sure AT&T and Verizon are happy.   ;)  

 

You mean like how they made AT&T happy with the Tmo purchase?  ;)

 

Robert

  • Like 6
Link to comment
Share on other sites

So you are suggesting that anything that AT&T or Verizon would want separately would not be heeded by the FCC, but if they join forces on anything before the FCC then they automatically are compelled to do it?

 

Robert

Link to comment
Share on other sites

So you are suggesting that anything that AT&T or Verizon would want separately would not be heeded by the FCC, but if they join forces on anything before the FCC then they automatically are compelled to do it?

 

Robert

 

I don't think anyone is suggesting anything of the sort.

 

That being said, the FCC's customer are both the phone companies and the public at large.

 

They should be serving their customers what their customers want whenever possible and where some kind of consensus resides, unless there are other factors in play that require going against consensus or majority desires.

 

In other words, if there is no technically overwhelming reason why some specific spectrum should be TDD or FDD, then the FCC should be agreeable to whatever the majority/consensus is for the customer's they serve.

 

If something is split so 50/50 that parties along both sides scream and yell, then well I guess they can always flip a coin (literally or figuratively).

Link to comment
Share on other sites

I don't think anyone is suggesting anything of the sort.

 

That is what he said, though.  He said that the FCC will heed the wishes of AT&T and Verizon because they agree with each other.  That is to say that even if the FCC finds that a contrary opinion is better for the public, he believes the FCC will go with what the big two want.  I disagree with that thinking.

 

But there is something to his point.  If no one in the wireless industry is arguing for TDD, then it probably will not be framed properly for the FCC to consider that as a viable option.  Leaving only FDD likely to be approved.  I just want to make a clear point though that merely because AT&T and Verizon agree on a matter before the FCC does not make it the only outcome the FCC can take.  Or even worse still, the FCC wants to know what their opinion is foremost and strive to make them happy.

 

I wanted to help him get to his main point, and saw myself as helping him get there.  And I also wanted him to point out the fallacy in thinking that whatever AT&T and VZW wants, there goes the FCC.  It was more about his thought being incomplete and not fully explained than it was about him being in gross error.

 

Robert

Link to comment
Share on other sites

Hopefully the 600 MHz spectrum band plan will be FDD in the end just because all the other carriers support FDD.  My prediction is that all the carriers would want to use 600 MHz spectrum partially for VoLTE and I think FDD configuration is more suitable for that than TDD.

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

    • Since this is kind of the general chat thread, I have to share this humorous story (at least it is to me): Since around February/March of this year, my S22U has been an absolute pain to charge. USB-C cables would immediately fall out and it progressively got worse and worse until it often took me a number of minutes to get the angle of the cable juuuussst right to get charging to occur at all (not exaggerating). The connection was so weak that even walking heavily could cause the cable to disconnect. I tried cleaning out the port with a stable, a paperclip, etc. Some dust/lint/dirt came out but the connection didn't improve one bit. Needless to say, this was a MONSTER headache and had me hating this phone. I just didn't have the finances right now for a replacement.  Which brings us to the night before last. I am angry as hell because I had spent five minutes trying to get this phone to charge and failed. I am looking in the port and I notice it doesn't look right. The walls look rough and, using a staple, the back and walls feel REALLY rough and very hard. I get some lint/dust out with the staple and it improves charging in the sense I can get it to charge but it doesn't remove any of the hard stuff. It's late and it's charging, so that's enough for now. I decide it's time to see if that hard stuff is part of the connector or not. More aggressive methods are needed! I work in a biochem lab and we have a lot of different sizes of disposable needles available. So, yesterday morning, while in the lab I grab a few different sizes of needles between 26AWG and 31 AWG. When I got home, I got to work and start probing the connector with the 26 AWG and 31 AWG needle. The stuff feels extremely hard, almost like it was part of the connector, but a bit does break off. Under examination of the bit, it's almost sandy with dust/lint embedded in it. It's not part of the connector but instead some sort of rock-hard crap! That's when I remember that I had done some rock hounding at the end of last year and in January. This involved lots of digging in very sandy/dusty soils; soils which bare more than a passing resemblance to the crap in the connector. We have our answer, this debris is basically compacted/cemented rock dust. Over time, moisture in the area combined with the compression from inserting the USB-C connector had turned it into cement. I start going nuts chiseling away at it with the 26 AWG needle. After about 5-10 minutes of constant chiseling and scraping with the 26AWG and 31AWG needles, I see the first signs of metal at the back of the connector. So it is metal around the outsides! Another 5 minutes of work and I have scraped away pretty much all of the crap in the connector. A few finishing passes with the 31AWG needle, a blast of compressed air, and it is time to see if this helped any. I plug my regular USB-C cable and holy crap it clicks into place; it hasn't done that since February! I pick up the phone and the cable has actually latched! The connector works pretty much like it did over a year ago, it's almost like having a brand new phone!
    • That's odd, they are usually almost lock step with TMO. I forgot to mention this also includes the September Security Update.
    • 417.55 MB September security update just downloaded here for S24+ unlocked   Edit:  after Sept security update install, checked and found a 13MB GP System update as well.  Still showing August 1st there however. 
    • T-Mobile is selling the rest of the 3.45GHz spectrum to Columbia Capital.  
    • Still nothing for my AT&T and Visible phones.
  • Recently Browsing

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