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EvanA

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Posts posted by EvanA

  1. You can see a nice map at: http://www.spectrumgateway.com/t-mobile-700a-spectrum

     

    Owned spectrum is in pink, pending transactions with FCC are in gold. They won't be finalized until after quiet period due to 600 auction, but T-Mobile filed for concurrent leases, so they can use the spectrum until FCC formally ok's it.

    Incorrect. The FCC will approve the transaction within the next few weeks and only then can T-Mobile actually use the spectrum. Concurrent operations agreements are for handing television stations which broadcast adjacent to the A block downlink.
  2. No Microwave. Think of it like an airave of sorts that uses existing B41 as back haul. Like a coworker only gets 5 mbps at edge of cell but the existing macro has like 50 mbps bandwidth close to the macro. So the total mbps would be 50 mbps, extended beyond the existing macro footprint. Or something like that.

    The cell in the picture doesn't appear to have a B41 relay antenna. They're not going to use LTE relay for every cell. It'll be a mix of backhaul solutions on a site by site basis, and in this case they decided to use microwave backhaul.
    • Like 1
  3. Also rootmetrics did a study in Michigan on T-Mobile 700mhz spectrum and their claims of better coverage. This is what they found. http://rootmetrics.com/en-US/content/t-mobile-s-700-mhz-band-spectrum

    I fired off an email to RM about this. T-Mobile has significant deployment of 700MHz in Michigan, so roaming % increasing doesn't make sense at all. Given that VoLTE was disabled for this round of testing, I suspect they didn't actually test 700MHz in Michigan because disabling VoLTE causes the network to reject connection to 700MHz for E911 requirements. I hope I get a response to clear this up.
    • Like 1
  4. All signs in the FCC OET authorizations are they do not.  The Samsung Galaxy S7 is more of the same from last year -- 2x2 downlink MIMO with switchable diversity antennas -- but only for low band and no uplink MIMO.

     

    AJ

    Ah yes I already forgot the S7 passed through the FCC already.

  5. The X12 LTE modem which ships with the 820 platform supports 4x4MIMO. What remains to be seen is whether the first devices launching with the X12 (S7/LG G5?) will have the necessary antenna and RF amp/filter setup to support 4x4MIMO. My bet is on these devices not having the requisite antenna configuration. Sprint's 8T8R setups already supports 4x4MIMO, it's just a matter of there being devices to utilize it.

     

    https://www.qualcomm.com/products/snapdragon/modems/x12

  6.  

     

    Might be worth investigating to see if this can be used to get more detailed information than what is provided by the Android API. And also to perhaps get around the 1x + LTE bug or stale data.

    I'm sure it can provide more detailed data, but since root is required to read it, I doubt it's worth the time and effort for Mike to implement. I doubt most people who use signal check have rooted devices.

    • Like 2
  7. Are you seeing both carriers or just the new one?

     

    Sent from my Nexus 5 using Tapatalk

    I think Sprint is moving their primary carrier to the newly cleared WiMax spectrum so there is enough contiguous spectrum to add a 2nd and 3rd carrier adjacent to the original. The GCI not changing to normal 2nd carrier pattern suggests this is probably the case.
    • Like 2
  8. f00dcabff449f0e8402b6ee5126ec5f6.jpg

    Here it is !

     

    Sent from my SM-G928P using Tapatalk

    It's important to keep in mind that these stats were compiled by T-Mobile using Ookla data. They could have easily manipulated the data.

     

    Also, I'll say the same thing I did over at Reddit: Where are the measurement uncertainties? Data without uncertainties is useless. This is one reason I have a lot more respect for RootMetrics than other network performance measurements. At least RM uses statistically sound techniques for characterizing network performance.

  9. Can i get her information? Im dealing with network issues and the engineers havent foxed it. Ive been calling for the last 4 weeks with zero resolution.

    Marci@sprint.com

     

    Include lots of information, including cascade ID, engineering mode screenshots, and signal check screenshots. I've done this several times and always gotten favorable resolution and communication from engineers.

    • Like 3
  10. Just wanted to point out, T-Mobile is absolutely fantastic here in Jacksonville, FL. And they do not have lowband here either. St Louis might be different but I'd definitely give T-Mobile a try and see how their coverage is. You should be able to test their speeds on an unactivated sim.

    Considering that Fraydog lives in a GMO LTE area for T-Mobile they're probably not a good choice.

     

    As far as T-Mobile in St. Louis and the metro goes, they're decent. It's been a while since I've had my prepaid SIM in, but last I checked they had just switched on 15x15 in AWS. The problem is they don't have any room capacity additions outside of PCS refarming and more cells (expensive). For now their network seems to be holding up, but I could see it becoming stressed very soon .

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