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RAvirani last won the day on July 8

RAvirani had the most liked content!

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1,071 Wireless Expert

About RAvirani

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    Probably by the food (the food is in Seattle)
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    Sprint Fan Boy (or Girl)

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  1. RAvirani

    Network Vision/LTE - LA Metro Market

    I spent a lot of time in the LA hills and drove the length of Mulholland Drive today, and I’ve got to say that Sprint is killing it up there. The network is PCS only and largely LTE-only in the hills, but coverage is FAR ahead of both T-Mobile and Verizon overall (my AT&T device was sadly dead for most of the day today). Sprint has tons of live L1900 small cells that we don’t have on our maps, and with with them all broadcasting 10x10+5x5 L1900, the network performance pretty awesome. T-Mobile seemed to be a 50/50 toss up between HSPA and midband LTE with a lot of patches of no service at all. Overall I wouldn’t call them very usable in the hills. Verizon had a good deal of small cells, but definitely not as many as Sprint. I’d say their overall performance was sub-par—their site spacing was not ideal, they have a much larger market share than Sprint, and most of their small cells were broadcasting L700 only, making for not-so-great RSRP levels and overall low throughput. These are exciting times for Sprint. I can’t wait to see more deployments like this across the country .
  2. RAvirani

    iPhone 8, 8+, X announced

    Hmm—I wonder where they are looking...
  3. RAvirani

    Network Vision/LTE - Chicago Market

    I can confirm that is true.
  4. I can confirm that’s true. I was in Vegas last week and had no issues at all outdoors on the strip. Indoors was good about 80% of the time. And a good portion of indoors issues were a result of low upload speeds on Band 41. There are still a few non-NV sites that plague the strip though...
  5. RAvirani

    Sprint Tmobile merger Disc.

    Don’t forget B12/17!
  6. Few quick updates on the Seattle market: Verizon B5/B26 MFBI is now live in Seattle. Verizon is also replacing all of the antennas on many of their sites with new MIMO (and possibly NR-capable) antennas. It seems that in a large majority of these setups, only half of the ports are used—I think they will come back and hook up new RRUs (again maybe for NR) to these unused ports later. Verizon has historically had phenomenal site optimization and load balancing but not-so-great site density in my area, although recently, they have been closing that gap. Although they still seem to be avoiding using wooden utility poles as much as possible, they are colocating onto many existing macros and buildings as well as constructing their own towers. I think they will soon become a much stronger competitor to the other carriers in this market. All Sprint towers in the market that can support the weight are being upgraded to one hexadecaport antenna (4x4 800, 4x4 1900, 8x8 2500) and one 8T8R antenna (8x8 2500) per sector. Sites with weight limitations are also getting triband upgrades but with lower order MIMO. The common setups in order of weight are: A single hexadecaport antenna (4x4 800, 4x4 1900, 4x4 2500) per sector. A standard 6-port dual-band NV antenna (2x2 800, 4x4 1900) and a 10-port dual-band next-gen antenna (2x2 800, 8x8 2500) per sector. (This setup is quite rare). A single decaport triband antenna (2x2 800, 4x4 1900, 4x4 2500) per sector. I haven’t seen any L600 in the Seattle metro on T-Mobile yet. They largely seem to have stagnated over the last year or so. Many sites (probably 1/4 or 1/5) still don’t have L700, mostly sites on wooden utility poles or powerlines. I haven’t seen permits or anything to upgrade these sites... AT&T also seems to have largely stagnated in the Seattle market following their WCS rollout. That being said, their network is probably holding up the best in my immediate area. They have the best site density in my market and their 15x15 lowband and 20x20 midband is working out really great for them.
  7. RAvirani

    3G Shutdown

    Sprint does not run EVDO on 800 MHz anywhere, only 1x. And I never said 1x was going anywhere...just that EVDO was disappearing on some rural sites...
  8. RAvirani

    3G Shutdown

    I don’t think the shutdown is widespread at all, but I’ve noticed it on several more rural sites.
  9. RAvirani

    3G Shutdown

    I disabled LTE several times (probably 15+ times) and was unable to pick up EVDO at all—just 1x.
  10. RAvirani

    3G Shutdown

    I agree. I think the spectrum is much better used for LTE or 1x than EVDO. Hopefully they will improve their handoff settings soon, though, because I drop from L1900 to CDMA (skipping L800) far too often for me to feel confident in VoLTE working reliably (at least on iPhones).
  11. I think we are starting to see Sprint shutdown 3G in favor of a 1x/LTE only network. Today, I drove south in I-57 from Chicago to St. Louis and a large majority of the towers along my drive were only broadcasting 1x and LTE. I noticed this a few weeks ago in rural Indiana as well. Wider channels for VoLTE, I guess, and exciting times for Sprint .
  12. RAvirani

    iPhone 8, 8+, X announced

    The rescan timer shouldn’t matter because it’s usually between two and a half to three and a half minutes on iPhones (it varies with each update). ORNL should take care of the handoff much sooner than that... Maybe the ORNL was disabled or its transmit cycle was changed in your market or vendor region for some reason? In Seattle I’m still seeing my iPhone hop back onto LTE within 15-30 seconds or dropping to CDMA...
  13. RAvirani

    iPhone 8, 8+, X announced

    It stands for OtherRATNeighborList. ORNL in combination with RRC release messages (that contain redirection information) are the closest Sprint can realistically come to gaining the functionality of SIB13.
  14. RAvirani

    iPhone 8, 8+, X announced

    The amount of time it takes a modern phone to reconnect to LTE after dropping you CDMA is not related to the phone. Sprint has implemented ORNL network-wide and that should be taking care of CDMA-to-LTE handoffs.