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Everything 800mhz (1xA, LTE, coverage, timeline, etc)


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On triband, purportedly the priority order is 2600, 1900, 800. Sprint will have the ability to have your device select an LTE band based on performance too, not just signal strength. Custom PRL's will not be able to be made to control LTE networks. LTE network selection is not handled by PRL's. Robert from Note 2 using Tapatalk 4 Beta

 

I would hope they give better tolerance for switching between bands so that it doesn't stick to a band that is present but nearly unusable.  IE, sometimes I get very low LTE signal to point of being unusable but still gets signal so sticks to it and not switch to 3G, even if manually switching to 3G  works fine.  I realize this is LTE vs. 3G switching (not band switch) but Sprint needs to tune thresholds better to switch when there is a poor signal.  Hope they don't make the same mistake between bands.  Is this controlled in the baseband driver for devices?

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There is a big difference between idle state priority and active state priority.  I would expect idle state priority to direct UEs to LTE 1900, since that is likely to be the most ubiquitous LTE band.  But active state priority should depend upon signal conditions -- TD-LTE 2600 wherever possible, then fallback to LTE 1900, then LTE 800 as a last resort.

 

AJ

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^Would be nice if the thresholds could be tuned manually by power users in ##DATA type settings.

 

I disagree.  I would actually like to have 800 and 1900 usable when I need them rather than have "power users" a block away from the site eating up the bandwidth.  This should be controlled from the network side only.

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On triband, purportedly the priority order is 2600, 1900, 800. Sprint will have the ability to have your device select an LTE band based on performance too, not just signal strength. Custom PRL's will not be able to be made to control LTE networks. LTE network selection is not handled by PRL's. Robert from Note 2 using Tapatalk 4 Beta

Would this work similar to the Network Optimizer program that Sprint uses to offload traffic onto WiMax? If I remember right it uses the 3g connection to know where you are and if that area is serviced by WiMax and if so, turns on your 4g radio.

 

So this might use the 1900 band to find 2600 and 800 signal that is underutilized to offload traffic from the 1900 band?

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I disagree.  I would actually like to have 800 and 1900 usable when I need them rather than have "power users" a block away from the site eating up the bandwidth.  This should be controlled from the network side only.

 

I meant to change the tolerance within a few dB, not force on 800 or 1900 when clearly not needed.

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I meant to change the tolerance within a few dB, not force on 800 or 1900 when clearly not needed.

 

Sprint surely won't have the phone hold onto 1900 at -120 dBm when a stronger 800 signal is available, so hopefully the values they set won't need to be tinkered with.

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Sprint surely won't have the phone hold onto 1900 at -120 dBm when a stronger 800 signal is available, so hopefully the values they set won't need to be tinkered with.

 

Hopefully, but given they hold onto 1900 LTE signal when too low and not going to 3G, I'm not counting on it.  See last few posts about that.  Would be nice to have option to tune, even if within a certain range as to not always force a band.  Then again, custom ROMs may come out that allow forcing bands anyway for better or worse.

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Too bad i can't turn off 4g to save on battery life like I could on my OG Evo 4G

 

Just turn off mobile data if you really want to save battery.  However the Sprint LTE phones beginning with the GS3 have had great battery life between 3G and 4G.  The difference in battery usage between 3G and 4G is pretty much negligible assuming you are in a LTE area.

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Cant remember but for 800 LTE is it just a "switch" they turn on at the site or does it involve more panels being installed?

 

Nothing is just a switch.  When you fire up/add tech to a site you usually want someone on the ground to check things out.  I've never been able to find a concrete answer, I've seen things that say a new card is needed in the basestation, for 800 1X/LTE, but then I've also seen it is just a config change as long as the backhaul is connected and the 800SMR RRU is tied into the basestation.

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Too bad i can't turn off 4g to save on battery life like I could on my OG Evo 4G

 

Actually, you can turn on/off any airlink that you choose.  But to do so, you have to know what you are doing in the internal Testing.apk, which I believe is an Android system app on all ROMs.

 

AJ

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Actually, you can turn on/off any airlink that you choose.  But to do so, you have to know what you are doing in the internal Testing.apk, which I believe is an Android system app on all ROMs.

 

AJ

 

Wouldn't it just be more simple to change the Network Mode on the phone from LTE/EVDO/CDMA to EVDO/CDMA in the Android settings( Settings->Wireless-> Mobile Networks-> EVDO/CDMA) to disable LTE searching.

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Wouldn't it just be more simple to change the Network Mode on the phone from LTE/EVDO/CDMA to EVDO/CDMA in the Android settings( Settings->Wireless-> Mobile Networks-> EVDO/CDMA) to disable LTE searching.

 

Yes, but in the Testing.apk menu, you can do CDMA1X/LTE, LTE only, or even CDMA1X only -- if you prefer.

 

AJ

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Wouldn't it just be more simple to change the Network Mode on the phone from LTE/EVDO/CDMA to EVDO/CDMA in the Android settings( Settings->Wireless-> Mobile Networks-> EVDO/CDMA) to disable LTE searching.

 

I could be wrong, but I think I had mentioned that to someone before and I learned that not every device has a setting like that.  The HTC and Samsung devices I've used do have the option, but I'm not sure about the Note 2.

 

-Mike

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I could be wrong, but I think I had mentioned that to someone before and I learned that not every device has a setting like that.  The HTC and Samsung devices I've used do have the option, but I'm not sure about the Note 2.

 

-Mike

 

Yep it is there.

http://support.sprint.com/support/tutorial/Turn_4G_on_or_off_Samsung_Galaxy_Note_II/42955-665

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I could be wrong, but I think I had mentioned that to someone before and I learned that not every device has a setting like that.  The HTC and Samsung devices I've used do have the option, but I'm not sure about the Note 2.

 

-Mike

 

Actually I think you are right.  The Samsung devices have the option to switch modes for sure but I think I noticed the HTC One does NOT have the option to switch modes.  I remember the HTC EVO 4G LTE did have that option however. 

 

But the pro version of your app gives you access under System Shortcuts for "Mobile Networks" to change the modes.

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LTE being enabled makes a minimal difference in battery life on any "newish" device. The only devices that had a noticeable battery life difference that can be directly attributed to LTE being enabled, were devices with separate 4G LTE chipsets (LG Viper, etc.)

 

Devices that utilize the same chip for 3G/4G have a minimal power usage difference (~1%/day).

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