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RAvirani

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Everything posted by RAvirani

  1. RAvirani
    The original post is how I would set the network up if I were building it from scratch. If I assume T-Mobile's sector alignments and remove the McDonald's site, this is what you would get. PCS Coverage: PCS Sectors: PCS SNR: It's better, but not great. Alternatively, if we remove the AT&T colo, we get... PCS Coverage: PCS Sectors: PCS SNR:
  2. RAvirani
    Here you go. PCS Coverage: PCS Sectors: PCS SNR:
  3. RAvirani
    T-Mobile's DB shows 70/180/310.
  4. RAvirani
    Oh no - I was simulating the setup you mentioned, which I also agree is the ideal site selection for the area. This is the best optimization I could come up with. Also, I should have probably included a legend... Coverage: Green: >-90 dBm Yellow: >-100 dBm Red: >-115 dBm SNR: Green: sufficient for 256QAM Yellow: sufficient for 64QAM Red: 16QAM or worse This setup is actually pretty good from an SNR perspective. You're not going to be able to get much better than 16QAM at the sector edge, and this covers the populated areas pretty well with 64QAM/256QAM. Also keep in mind there are other sites that pick up the red in the outer areas - this map is intended to focus on the core Totem Lake area. I'll simulate T-Mobile's current network for comparison shortly.
  5. RAvirani
    PCS Coverage: PCS Sectors: PCS SNR:
  6. RAvirani
    I provided the team with a lot of drive test data highlighting how rarely 256QAM/64QAM or even 16QAM was available (thanks for contributing data to the SignalCheck DB by the way). They seem to be putting a bit more thought into it now. Give me a few mins. I recently got access to some much nicer RF planning software (the software Verizon uses) and would like to throw this area in. Gotcha. That’s a really great site. Those are super busy sites as well.
  7. RAvirani
    This is in an ALU market right? Verizon is also very consistent with their eNB splits. Sites with CA across all bands use a single eNB. Sites where midband is not allowed to aggregate with lowband have midband assigned to 300,000 (or sometimes 600,000) + the lowband eNB. On rare occasion, to disable CA altogether I’ve seen AWS on 300,000 + the lowband eNB and PCS on 600,000 + the lowband eNB.
  8. RAvirani
    There’s an ongoing debate about optimization here. They’re trying to limit overlap in the area. Do you mean 104th? That site is crazy busy, especially when 124th gets jammed. Great add.
  9. RAvirani
    Looks like AT&T to me.
  10. RAvirani
    Hey everyone! My phone got stolen last week, and the new phone I received was set up with TNX. As a result, I can’t roam on several of the Sprint sites I used to roam on, including my home site. Does anyone have any experience getting off TNX? I’ve tried two legacy Sprint stores as well as customer care (via phone) with no luck. I’m really hoping I can get this resolved soon - I don’t want to have to port to AT&T or VZW.
  11. RAvirani
    Without rooting your phone, SNR of the 5x5 vs SNR of the 20x20 carrier is probably your easiest comparison.
  12. RAvirani
    Nice! How does the load balancing look?
  13. RAvirani
    B41+n41 and B71+n41 are both available in select markets.
  14. RAvirani
    B41 and B71 are also being used as anchors.
  15. RAvirani
    If they were limiting sites' range with downtilt, they'd be a lot better over here. Unfortunately, we have a lot of sector overlap and noise because they don't.
  16. RAvirani
    Agree! Thanks Mike!
  17. RAvirani
    I strongly disagree with their assessment. A 20-degree difference in alignment would make little to no difference in indoor coverage. While the beta sector may be picking up a lot of traffic now, it could easily be picked up by the gamma sector. Meanwhile, going from 16QAM (which is about normal there) to 64QAM or 256QAM (which requires a 6-12 dB increase in SNR) would allow UEs to push 50-100% more bits per symbol. That would be huge for speeds.
  18. RAvirani
    Update on this one: https://imgur.com/a/WZFfaY2
  19. RAvirani
    Wow. In Totem Lake, Verizon has two sites - one four sector (four 45° antennas) and a three sector that is nulled in the direction of the other site (via three 45° antennas). AT&T has two standard three sector sites (with 65° antennas) that don't overlap due to terrain. Their networks are so clean that 64QAM (24dB+ SNR) or even 256 QAM (30dB+ SNR) are consistently available. https://imgur.com/a/jm3Wvy1 T-Mobile, on the other hand, has four (going on five) sites plus a significant spectrum advantage, and they perform noticeably worse. They barely push 16QAM - in fact you frequently see modulation drop to QPSK. I guess in their mind, 4-5 sites operating at 4 bits per symbol is better than two sites operating at 8 bits per symbol.
  20. RAvirani
    Yes. Coming soon!
  21. RAvirani
    My understanding is that femtos get eNBs >1,000,000 on T-Mobile.
  22. RAvirani
    Modernization is T-Mobile language for upgrades.
  23. RAvirani
    You're probably right - I remember hearing that Sprint L2500 was going to be trimmed down to a single carrier a few weeks back.
  24. RAvirani
    https://imgur.com/a/kid76s3
  25. RAvirani
    Is that across the Seattle market?
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