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RAvirani

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Everything posted by RAvirani

  1. RAvirani
    Another 4 MHz below their current holdings would be very nice. The SMR spectrum that some other regional carriers operate in.
  2. RAvirani
    That’s quite true in my experience as well. But, in scenarios with more obstacles (where signal loss due to walls, shrubbery, etc causes L1900 to take a big hit), L800 definitely outdoes L1900 due to superior propagation characteristics. Additionally, when VoLTE goes live, at -125 and potentially worse L800 signal levels (where L1900 simply isn’t available), L800 will probably be able to push just enough data through to maintain a call.
  3. RAvirani
    800 is coming up over all of New York state. Sadly, in those border areas, Canada is primary and the US is secondary, so L800 will be 3x3 (centered at EARFCN 8775). That being said, 5x5 L800 (centered at EARFCN 8763) is possible outside border regions in the rest of the state.
  4. RAvirani
    Oh wait — my bad! Seattle had Huwei RRUs and basestations although those were all replaced (with Nokia mini macros and such). I actually don’t remember what vendor the Clear antennas are from. Here’s a picture of one if you can identify it. https://m.imgur.com/RVlLkfL We mostly have the antennas on the right. The antenna on the left was recently swapped in because the old one kept randomly failing.
  5. RAvirani
    Seattle is a Clear Huwei market but I’ve noticed that there are four jumpers to each antenna at all of our Clear sites...are these Huwei antennas capable of the same thing?
  6. RAvirani
    Radiation from the MB should have no real effect on you.
  7. RAvirani
    Sprint assesses network usage before refarming spectrum to LTE. If CDMA usage is still high, there’s a low chance of more LTE spectrum coming on line. It’s also important to note that the equipment has limitations regarding the number of separate carriers it can run as well as the total bandwidth.
  8. RAvirani
    Sites that use RF combiners have a bandwidth limitation, which is why some sites may still be on 5x5 L1900 even as the rest of the market has moved to 15x15. When 10x10 was first turned on in Seattle, every tower got it at the same time except for those that were not physically able to run 10x10.
  9. RAvirani
    Yeah Samsung equipment received a software upgrade allowing 15x15 L1900 a while back — I am not sure as to why they aren’t turning it on...
  10. RAvirani
    You’re in the New York market, right? Aren’t you guys getting tons of small cells and strand mounts? How are those?
  11. RAvirani
    We have 10x10 L1900 which is soon to be 15x15 (the PCS C4 block is currently owned by Sprint but completely unused). Performance is great — the qrxlevmin value for L1900 is -125 and throughput is decent even down to those signal levels. Combine the PCS network with most sites running 2-6 L2500 carriers and the LTE network is phenomenal. A majority of our sites do not have 800 MHz equipment although we are slowly but surely seeing upgrades to the new KMW hexadecaport antennas (4x4 800, 4x4 1900 and 8x8 2500). Unfortunately, these new antennas coverage/range is not as good as that of the PCS-only equipment most of our sites today have, so new L800 coverage feels very similar to old L1900 coverage. That being said, the L800 qrxlevmin is very high (-118 I believe), so when they drop that down to a lower signal level, maybe we’ll start to better see the benifits of L800.
  12. RAvirani
    We’ve already got 4x4 on L1900 up in Seattle as Sprint only runs one L1900 carrier and three CDMA carriers. Additionally, 256QAM (for all bands) is ready to go in Samsung markets — I’m not sure what the hold up is.
  13. RAvirani
    Oh, nice. I'm definitely not as familiar with the state of Android devices as I probably should be.
  14. RAvirani
    That’s been happening on my iPhone for quite a while now...
  15. RAvirani
    That looks like a T-Mobile RAS setup.
  16. RAvirani
    They have done this in downtown Seattle too and I think it’s stupid. It makes coverage look completely awful.
  17. RAvirani
    I’d guess it’s more closely related to employee selection and qualification, incentives and company culture. Sprint is definitely turning that around but they still have a decent way to go.
  18. RAvirani
    Hmm...spectrum that could come up for auction that isn’t mmWave...wonder what that could be ?…
  19. RAvirani
    I think it would be great if Sprint could pick some spectrum in the CBRS band—I could definitely see their NR network being primarily 2.5/3.5 GHz. Additionally, if CBRS spectrum were used for NR with massive MIMO, it would be a good overlay for the L1900 grid as it would have comparable coverage/range. Your point about roaming is definitely true too. It would be nice for us to roam in other countries on the same band as back home; additionally, with spectrum that lines up with international providers, Sprint may be able to break into the US international roaming market (which AT&T and T-Mobile primarily dominate today).
  20. RAvirani
    I’d estimate that with massive MIMO and HPUE, 2500/2600 MHz NR could probably eclipse the range of L1900 today. See page 29 here regarding my previous post: http://www.oulu.fi/sites/default/files/content/Keskinen-5Glecture.pdf
  21. RAvirani
    Something else that is interesting to note is Nokia recently demonstrated (in Europe) how massive MIMO could bring the coverage of 3500 MHz spectrum to that of 1800 MHz spectrum. I wonder what massive MIMO will be able to do for Sprint’s 2500/2600 MHz spectrum. Maybe it will make rural n41 deployment possible… EDIT: Meant Nokia not Qualcomm
  22. RAvirani
    It’s actually happening! I’m excited.
  23. RAvirani
    I would think the Note 5 would use SrLTE, although I may be wrong.
  24. RAvirani
    No, ##873283# is just a PRL a update. Go to Settings>General>About and hover there for a bit. If there’s a carrier update available, you will be prompted to download it. You can also try resetting your network settings as that will force your phone to redownload the current carrier package.
  25. RAvirani
    Me too. And very slightly sad...
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