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pslee

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Posts posted by pslee

  1.  

    Link:

     

    Sprint Triband LTE phones dropped SVLTE for eCSFB/CSFB

    Up until these new Triband devices, previous Sprint LTE devices supported simultaneous voice and LTE (SVLTE). It could do so with two separate transmission paths from the antennas to the chipset. Voice/texting could run via 1xRTT on one transmission path. LTE could run a separate path, allowing data and voice to be used simultaneously.

    In contrast, Sprint Triband LTE devices do not support two separate transmission paths. They have one path, shared by voice/SMS and data.

    How it works

    In previous Sprint LTE phones, when a device was in Sprint LTE coverage it would park in both the LTE and CDMA Sprint networks at the same time. When a voice call came in, it would just go straight through to the device. And signal to the LTE network would be maintained the whole time while the call was active.

    In contrast, a Sprint Triband LTE device can only stay on one technology at a time. CDMA or LTE, not both. So when a Sprint LTE Triband device is in Sprint LTE coverage it parks only in LTE. And doing so means it cannot transmit calls without Circuit Switched Fallback (CSFB) on the network side. CSFB and eCSFB (Enhanced Circuit Switched Fallback) are network controls that will allow a single mode/single path network to operate in two modes, both CDMA and LTE.

    Here is how it works in the simplest way I can describe. When your Triband LTE device has an LTE signal, it cannot receive or make calls on its own. It is just using LTE data happily. However, what if someone calls you? How does it get through the CDMA network to your device? Via CSFB.

    When the Sprint network tries to forward a call to your device but cannot see it via CDMA, it then checks for an LTE connection to your device. If it sees one, it tells your device to disconnect from LTE for a moment and reconnect to CDMA. Your device then jumps over to take the call on Sprint CDMA and the LTE session is interrupted. This happens very fast and seamlessly. Except for the loss of data availability. If you receive a text, the Sprint network is able to route it to your device via LTE.

    Circuit Switched Fallback is a great solution to the issue of Sprint Triband LTE smartphones.

     

     

    thank you. i thought there was something wrong with my phone. 

  2. No issues with SCP. You are not connected to 1x when you are connected to LTE. I have a G3 as well and SCP works perfectly with it. That's just the nature of tri-band devices.

     

    Sent from my Nexus 5

    when these triband phones are on LTE, how do you get calls and texts? Also when I get calls, LTE disappears, unlike galaxy note 2. on note 2, you still had LTE when i was on the phone call. 

  3. just want to share. I got a new phone, LG G3. it seems to be prioritizing band 41. it bounces between 41 and 25 and sometimes 26 when i am deep inside the building, but primarily on band 41. Overall, I am very impressed with the service and also the phone! it is a amazing phone. it has problem with signalcheck pro app. when connected to LTE, 1xRRT or 1x800 signal doesnt work. I rely on the sprint engineer screen ##debug#. whoever going to upgrade anytime soon, definitely check this phone out guys. 

    • Like 1
  4. this is exact reason why I do think this forum is a bit biased against other carriers. We all have sprint and looking forward to have best service across the board and sprint has the good long run plan ahead. But if you have used other carrier's data plan in NYC, you would have noticed how far back sprint is in terms of LTE coverage and speed. I have experience the worst coverage and service in 2013, and if you guys are still happy with it, I am speechless. 

    • Like 2
  5. Looking in as a third person, Sprint is the worst carrier in the NYC as of now. I advise against anyone to switch to sprint at this point. things might change in the future, but AS OF NOW, sprint is the worst carrier in NYC without any hesitation. 

  6. I was in Manhattan last weekend (I'm from long island) and I was getting signal at a lot of subway stations where my girlfriend on Verizon had nothing. I was pleasantly surprised, up until when I went to MetLife Stadium yesterday and my phone was useless (3G and 4G).

     

    Sent from my SPH-L720 using Tapatalk now Free

    yea i get you. I was at Citi Field for a mets game and absolutely terrible 3g and 4g. 

  7.  

    I'm buying the HTC One Max!!!

     

    4G - LTE:
    • EMEA: 800/900/1800/2600 MHz
    • Asia: 900/1800/2100/2600 Mhz
    • AT&T: 700/850/AWS/1900/2600 MHz
    • Sprint: FDD 800/1900 MHz, TDD 2600 MHz
    • Verizon: 700/AWS MHz

     

    although it might have triband, i think HTC is a little to late into the game. only has snapdragon 600 for a flagship, 4megapixel camera, etc. i think LG g2 is a better phone overall. I will just wait and see has triband pan out in nyc

  8. This is confusing then. I pulled the screenshot out of the main page at http://network.sprint.com

    Why even bother titling it "Sprint 4G LTE launched Cities"? 

    In my opinion, the newsroom article should've been consistent with all other showings of their coverage. To call Flushing, Queens a 4G LTE City is just wrong and it looks really bad.

    Downtown Flushing is actually pretty descent in terms of LTE. but north flushing, east flushing need some work. i get around 96-105 dbm average at home for LTE, which is not bad at all. but it is still very spotty and phones hanging onto weak LTE signals gets really frustrating sometimes. only way to avoid it is put the phone on CDMA mode for 3G only. 

  9. Believe it or not, im thinking of going for the Note 3. I love my HTC ONE, but the metal housing (and maybe other factors) definitely makes the signal a bit weaker than my old GS3. Doing a side by side comparison its always 3-4 dBm stronger than my ONE. Are theyre any confirmed reports of the Max coming to sprint? cause that would add to my list of phones to consider. 

     

    gs3 has just better radio i think. it gets 2-3dbm better than my note 2. 

  10. Or you're in Sunnyside, Queens, where you have pre-war brick buildings on every block, and unless you sit on the tower, you have poor signal. 

     

    That's been my biggest pet peeve about that area, the lack of building penetration.

    agree. any residential building that is 60+ years old has really poor penetration for sprint. i live on the top floor and before NV upgrades, I had 1-2 bars or none. now I have 5 bars with great 3g and 4g speed. 

  11. Not quite sure what u mean phone updates your application. If u meant ur phone downloading apps, then the answer is your wifi is faster. Or at times u have a bad signal so your throughput is bad on 3G/4g. That's probably not what your asking though.

    When downloading app or existing app updates over 3g/4g, it takes very long due to data time out. It has nothing to do with data speed. It downloads when I using the phone that requires data.

    • Like 1
  12. Its a little off topic but when my phone updates its application, it can take hourspto download when I am on 3g or 4g. The data times out and it stops downloading and it obly dowbnloads when data is in use. When I am on wifi, it dowbloads in seconds. Do you guys having same issues?

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