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RAvirani

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Everything posted by RAvirani

  1. RAvirani
    Don’t forget the improved coverage and propagation with lowband spectrum.
  2. RAvirani
    http://www.3glteinfo.com/ims-volte-architecture/
  3. RAvirani
    Oh, I see. I really don’t know what the holdup is here with the equipment now capable of 15 MHz FDD L1900.
  4. RAvirani
    My guess would be the new IMS for VoLTE.
  5. RAvirani
    Isn’t this non contiguous though? It looks like the C3 carrier aggregated with the C5+G carrier...
  6. RAvirani
    I do not but @lilotimz might...
  7. RAvirani
    Maybe it’s an 800-only eFemto?
  8. RAvirani
    There are tons of ways—looking at the physical equipment, measuring RSRP/RSCP/RSSI levels near the site, trying to connect to the different sectors of a site as you move around it, online tools that provide this sort of data, etc.
  9. RAvirani
    Imagine how much better Sprint will be once they’ve got 800 MHz up and running. 15x15 L1900 as well.
  10. RAvirani
    Getting a picture of the RRUs would help…
  11. RAvirani
    Nice! Looks like it’s finally happening.
  12. RAvirani
    It would be the CBRS band in the US.
  13. RAvirani
    I don’t know… We’ve already seen real world demonstrations of massive MIMO on 3500 MHz marching the range and propagation of 1800 MHz (at 2x2 MIMO); I can only imagine how Sprint’s 2500 MHz NR will look with 64x64 MIMO... In Seattle (which was PCS/BRS only until a few months ago), if 2500 MHz NR coverage could match L1900 coverage today, Sprint would be the undisputed #1 carrier.
  14. RAvirani
    It is probably the power company building out their own network. What company/market is it?
  15. RAvirani
    I like that ping.
  16. RAvirani
    Samsung equipment has already received the software upgrade for 4x4 MIMO, 256QAM and 15x15 L1900 although I don’t *think* we’ve heard anything regarding Alcatel Lucent...
  17. RAvirani
    I don’t know...there are only two jumpers to each antenna which makes me think it’s probably not a high-order MIMO deployment... It could possibly be a regional carrier...
  18. RAvirani
    It seems I’ve come home to another pleasant surprise — a new site with hexadecaport antennas located on Microsoft building 43. I can’t connect to it yet, but it’ll definitely improve coverage and capacity in the surrounding areas when it comes online.
  19. RAvirani
    Great stuff!
  20. RAvirani
    Just returned to Seattle to a pleasant surprise — full LTE throughout SeaTac airport! Never thought this day would come. Service was -102 or worse on L1900 or L2500 before. Now signal on L1900 doesn’t drop below -90.
  21. RAvirani
    According to my local Sprint engineer, the new antennas have inferior spread compared to the old ones. This translates to coverage loss in some scenarios but not all. I’ve run into problems (that previously didn’t exist) mostly in the null zones between sectors and in hilly areas where my elevation is considerably different from that of the RAT center.
  22. RAvirani
    April fools!
  23. RAvirani
    Happy birthday Robert! Hope it’s a good one.
  24. RAvirani
    That’s very possible; maybe it’s a combination of both. The loss in L1900 coverage with the new antennas makes me a little biased against them, though...
  25. RAvirani
    Part of me wonders if some of what we’re seeing is due to the new equipment Sprint is using. Accoriding to local network engineers, the new KMW 16-port antennas Sprint is deploying are definitely inferior to the old NV anennas Sprint was using as far as range and spread of coverage go...
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