on the device the preferred network type is LTE but most of the time it falls back to HSPA mode and not LTE how do you force the LTE mode only? My location get's 3-4 bars for LTE coverage and all 5 bars for HSPA but LTE is faster
Dial *#*#4636#*#* on the keypad and under phone settings there is LTE only. Your phone won't work for calls possibly after you do this and you won't get data outside of an lte area.
Sent from my Nexus 5 using Tapatalk
coorsleftfield said:
Dial *#*#4636#*#* on the keypad and under phone settings there is LTE only. Your phone won't work for calls possibly after you do this and you won't get data outside of an lte area.
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
Thank You. Yes it did work but changed it back since I need my cell phone to be a cell phone for calls
sillyshyme said:
Thank You. Yes it did work but changed it back since I need my cell phone to be a cell phone for calls
Click to expand...
Click to collapse
How do you change it back? Mine keeps reverting back to LTE only and I am unable to make and receive calls.
Did you get calling back?
Sent from my Nexus 5 using Tapatalk
sillyshyme said:
on the device the preferred network type is LTE but most of the time it falls back to HSPA mode and not LTE how do you force the LTE mode only? My location get's 3-4 bars for LTE coverage and all 5 bars for HSPA but LTE is faster
Click to expand...
Click to collapse
man, i grepped a whole thread in relation to this very issue, it's a very imformitave read on LTE network overlays on legacy & upgrading cellular & the intro to these single chip, single pathed qualcomm snapdrgon families, but it got closed;
the nexus 5 only has one chip to handle all networking, from wifi, voice calls, to bluetooth;
it's doing quadruple duty, a question, what technology are you using, gsm, or cdma?
~edit~
nevermind it, you mentioned hspa, so it is gsm..
i'm reading up on lte to gsm handover right now.. lol
j'vai said:
man, i grepped a whole thread in relation to this very issue, it's a very imformitave read on LTE network overlays on legacy & upgrading cellular & the intro to these single chip, single pathed qualcomm snapdrgon families, but it got closed;
the nexus 5 only has one chip to handle all networking, from wifi, voice calls, to bluetooth;
it's doing quadruple duty, a question, what technology are you using, gsm, or cdma?
~edit~
nevermind it, you mentioned hspa, so it is gsm..
i'm reading up on lte to gsm handover right now.. lol
Click to expand...
Click to collapse
5 month old thread that was necro'd
Zepius said:
5 month old thread that was necro'd
Click to expand...
Click to collapse
issue solved?
What does this mean?
Sent from my Nexus 5 using Tapatalk
rraicu said:
What does this mean?
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
that's what i'd like to know.. lol
necro'd as in meaning; left'd to wither inthe wind, or because it's 5 months old, it's not worth posting to anymore..
that's why i asked if the issue was solved, there's threads, & posted STILL asking about LTE faulty connections scattered all over the place, so i guess the issue isn't solved in relation to this handset..
i'm in the school of thought, that like a car, or any tool one would use, it's best to grasp a critical understanding of what it's being used ON..
(am i wrong in this assessment?)
from there, once you understand the build of your tool, you compare it what it's being used on, with it's pros & cons; heighten it's pros, lessen it's cons..
wen i went to mexico just two weeks ago, i ordered two telcel prepaid sim cards to use for that 5 day stretch, i noticed i only got version 5 sim cards that didn't do lte that telcel provided, i called back & asked why, & was told that yes, telcel DID provide lte, but not in the area i was visiting, the highest i would get was hspa+, & only in mexico city & within cancun proper would lte be utilied..
knowing this, & knowing i would be off the beaten path on the beach & not in the major city, i opted for the cards sent, settling for the highest hpsa+ speeds..
maybe not all of us, but many of us, purchase our vehicles (& phones) based on critical knowledge of the phone & network in unison, **if we want more utilization from our hansets**
remember that scene - http://nilvideos.blogspot.com/2008/09/transporter-bank-robbery_17.html
I don't want to try disabling the hspa and calling without knowing I can flip it back on easily..
Sent from my Nexus 5 using Tapatalk
rraicu said:
I don't want to try disabling the hspa and calling without knowing I can flip it back on easily..
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
hey, are you on tmobile?
if so, tmobile's roaming is set within it's sim, *unless you manually select a particular nework*
"The device detects and registers on wireless networks inside T-Mobile’s calling area, but roaming networks are usually restricted to T-Mobile SIM cards. You can manually select a network only in areas where T-Mobile does not own GSM spectrum." - ~attachment~
our nexus 5s use single chip, single pathed radios, only one path is used at one time, right?
on the network side, things can be set up pretty differently -
3.3 SUBSCRIBER DATA ASPECTS: USIM/ISIM
Coexistence of LTE with WCDMA/HSPA and GSM Network requires a smooth transition of home location
register HLR towards HSS based on 3GPP specifications. This also helps in providing next generation
Data Layered Architecture that addresses operator’s needs regarding centralization of subscriber data
used for authentication across multiple layers of the same session.
The SIM/USIM is the security token in 2G/3G networks for authenticating a subscriber in the operator’s
HLR. The USIM will continue to provide user authentication function at the access level to the LTE
network.
However, it is necessary to define a mechanism for service level authentication as well, for services such
as the IMS. The ISIM (an application on the UICC) is defined to hold both the user’s access level
credentials and the IMS Private User Identity that is stored in the HSS. The ISIM enables the user to
authenticate to the LTE operator’s IMS network and access its services.
3.4 ROAMING SCENARIOS
There are two roaming scenarios based on home tunneling compared to home tunneling with the
possibility of local breakout as shown in Figure 9. The 2G/3G networks refer to legacy CS or PC based
accesses like GSM/WCDMA in the network
http://www.4gamericas.org/documents/4G_Americas_Coexistence_of_GSM_HSPA_LTE_May%202011x.pdf
to set up domestic roaming on this type of handset ACTUALLY make you roam moreso on other US networks, even though the sim card is provisioned with what network is OK'd?
we're not talking from an older, dual pathed chip paradigm, when that meant exactly *that*..
these newer phones are different beasts..
Yes I'm on T-Mobile.
Sent from my Nexus 5 using Tapatalk
rraicu said:
Yes I'm on T-Mobile.
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
LTE has an all IP backbone, with no circuit switching mechanism, the network would provide that, & from my understanding from reading up on it, wcdma provides the **IP flattening** for voice on the gsm networks, just as ehrpd does for cdma networks..
what would happen if you switch on domestic roaming in -
APN & data settings
To set the Access Point Name (APN) and turn on data settings, follow these steps:
1.From any Home screen, tap the All appsAll Apps.pngicon.
2.Tap Settings.
3.Under 'WIRELESS & NETWORKS," tap More... to display more options.
4.Tap Mobile networks.
5.Check the Data enabled check box.
6.Check the Data roaming check box to receive data when roaming domestically
7.Uncheck the Data roaming check box when roaming internationally to avoid incurring roaming charges.
8.Tap Access Point Names
9.Choose from the following:•MetroPCS - fast.metropcs.com
•T-Mobile GPRS
•T-Mobile GPRS - fast.t-mobile.com
do you think you'd simply, roam on another provider?
i suspect it would aid your phone in it's LTE to GSM voice handling..
i suspect strongly.. setting it to *LTE* in -
Switch 2G / 4G / LTE
To change the band between 2G, 4G, and LTE, follow these steps:
1.From any Home screen, tap the All appsAll Apps.pngicon.
2.Tap Settings.
3.Under 'WIRELESS & NETWORKS," tap More... to display more options.
4.Tap Mobile networks.
5.Tap Preferred Network Selection.
6.Choose from the following:•LTE
•3G
•2G
..........................
on yet another note,, your handset may be functioning more properly than you could imagine; in your OP
"on the device the preferred network type is LTE but most of the time it falls back to HSPA mode and not LTE how do you force the LTE mode only? My location get's 3-4 bars for LTE coverage and all 5 bars for HSPA but LTE is faster"
tmobile's LTE may simply be having issues for a spell, to be worked out at a later date, & you're falling back on hspa+ asa failsafe..
you may not have to change a darn thing..
In the Palo Alto area LTE doesn't always stay on and the HSPA+ does not actually transfer any data. Sometimes hspa+ is on when weak LTE is available. In situations where I want wreak LTE over strong but useless hspa+ I need to force LTE not just prefer it
Sent from my Nexus 5 using Tapatalk
Related
i know you could do it with the galaxy s3, but it seems like it cant be done with this phone.
the secret menu has practically nothing in it, and only WCDMA preffered, LTE only, etc
i want to be able to force a particular band, could this be done by editing the build prop? i want to try and force 900mhz
can it be done, or am i searching for hours on the internet for nothing?
Sounds like you have a CDMA phone. "No SIM Card". Sprint or Verizon ????
If this is the case, then you are looking in vain.
AT&T HTC OneX
Android 4.1.1
ViperXL 3.2.3
NAH i have an australian htc one xl. i am on a carrier (not particularly the fastest) but i have unlimited data and wanted to see if i could increase my download speeds by locking onto a particular band lol
Are you talking about selecting something like this in the phone info "secret" menu?
Sent from my HTC One XL
Venomtester said:
Sounds like you have a CDMA phone. "No SIM Card". Sprint or Verizon ????
Click to expand...
Click to collapse
You're confusing WCDMA with CDMA.
WCDMA refers to the HSPA (3G) radio on this device, and not to be confused with the CDMA network used by Verizon and Sprint.
http://en.wikipedia.org/wiki/3G#Overview
Is this what you are talking about?
legend221 said:
[2G/3G/3.5G] Preferred Network Types Explained & How To Change It Easily
I'm noticing most of us are on the AT&T Network, yet there are those that do not want or need 3G/3.5G and want to use 2G or have another carrier so they cant take advantage of the speeds because they are on a Network such as T-Mobile.
Obviously someone using primarily or mainly 2G will see significantly more battery life.
This is good for someone that rarely uses data service or goes online using WIFI for the most part.
To change or edit your Preferred Network type go to your Phone app
then enter the following: *#*#4636#*#*
>Phone Information
>Set Preferred Network Type
Now you are able to change and edit the way your phone looks for and uses the Network you are currently on.
The Terms are explained below:
Preferred Network Types change the type of frequency the phone searches for.
Android is used on several devices that can gain access to different cell carriers.
For simplicity, there are two main types of cell carriers, GSM and CDMA.
The following popular data communication technology is associated with each cell carrier type:
GSM = GPRS (2g), EDGE(2g), UMTS(3g), WCDMA(3g), HSDPA(3g) {Cell Carrier examples: AT&T and T-Mobile}
CDMA = CDMA*(2/3g) EV-DO(3g) WiMax(3/4g) {Cell Carrier examples: Verizon and Sprint}
Now that the general stuff is out of the way, here's my take on the Preferred Network types:
WCDMA preferred - The GSM phone is capable of using both 2G and 3G data communication and when signal strength is low 3G is favored more.
GSM only - The GSM phone is capable of using only 2G data communication. When the 2G signal is too low you get nothing at all.
WCDMA only - The GSM phone is capable of using only 3G data communication. When the 3G signal is too low you get nothing at all.
GSM auto (PRL) - The GSM phone is capable of using both 2G and 3G data communication and when signal strength is low 2G is favored more. This one is a bit confusing to me since PRL is associated mostly with CDMA technology and not GSM technology.
CDMA auto (PRL) - The CDMA phone is capable of using both 2G and 3G data communication and when signal strength is low 2G is favored more.
CDMA only - The CDMA phone is capable of using only 2G data communication. When the 2G signal is too low you get nothing at all.
EvDo only - The CDMA phone is capable of using only 3G data communication. When the 3G signal is too low you get nothing at all.
GSM/CDMA auto (PRL) - Some phones are equipped with both GSM and CDMA capabilities. This setting appears to just have the phone attempt to stay connected to the data communication type that works the best.
Unknown - If none of the above fit or the phone is acting weird as far as connecting to the carrier, you will see your preferred network type is set to this
When using the 'only' options you should still be able to make calls.
To put things into perspective, The Nexus One is set to WCDMA preferred as default and the Droid Incredible is set to CDMA auto (PRL).
Click to expand...
Click to collapse
Is it possible to disable LTE from the settings? I don't feel that LTE is worth the additional battery drain and that HSPA+ is good enough.
Yup. Under mobile settings "Network Mode" 1) LTE 2) 3G 3) 2G.
Im on AT&T
Try the old *#*#4636#*#* - Phone info - scroll down, change the radio to WCDMA Preferred and that'll basically stop LTE connectivity.
Is LTE actually less efficient than HSDPA though? Especially with the new envelope tracking? I'd be curious to know.
br0adband said:
Try the old *#*#4636#*#* - Phone info - scroll down, change the radio to WCDMA Preferred and that'll basically stop LTE connectivity.
Click to expand...
Click to collapse
It doesn't actually seem to do anything, even if I set it to WCDMA-only. I really need this because I have a 3G plan provisioned on an LTE-capable SIM and the network rejects registration if it is attempted on an LTE band.
some app could disable LTE
evildave_666 said:
It doesn't actually seem to do anything, even if I set it to WCDMA-only. I really need this because I have a 3G plan provisioned on an LTE-capable SIM and the network rejects registration if it is attempted on an LTE band.
Click to expand...
Click to collapse
I meet the same problem,
the app "nexus 5 field test mode' can disable LTE. But it doesn't work on some roms (like mahdi).
xx87xx said:
I meet the same problem,
the app "nexus 5 field test mode' can disable LTE. But it doesn't work on some roms (like mahdi).
Click to expand...
Click to collapse
My original problem was fixed with the 4.4.2 update.
Depending on the signal, LTE can be a bit more efficient.
Sent from my Nexus 5 using Tapatalk
bblzd said:
Depending on the signal, LTE can be a bit more efficient.
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
truth.
i get one hour screen on time more if i use lte than with 3G(hspa+). i get 5-6+ hours sot with lte, and 4-5 hours sot with 3G(hspa+).
Does anyone know if the S5 is tri-band with spark just like the 720T S4 ?
Sent from my SPH-L720T using xda app-developers app
Yes it is.
Sent from my HTC0P3P7 using Tapatalk
Yep. It's spark enabled. Which I hate because no simultaneous voice and data over LTE
Sent from my SM-G900P using Tapatalk
eyecon82 said:
Yep. It's spark enabled. Which I hate because no simultaneous voice and data over LTE
Sent from my SM-G900P using Tapatalk
Click to expand...
Click to collapse
I heard it's supposed to be coming sometime around June correct? Trying to remember where I saw I mentioned
Sent from my SM-G900P using Tapatalk
reverepats said:
I heard it's supposed to be coming sometime around June correct? Trying to remember where I saw I mentioned
Sent from my SM-G900P using Tapatalk
Click to expand...
Click to collapse
yea...sprint hasn't upgraded their network to enable simultaneous voice and LTE with spark....but i heard they are working on....i hope its not region based and they can get all the towers working on it at once
i miss being able to mess around on the internet while on hold
hakeem0996 said:
Does anyone know if the S5 is tri-band with spark just like the 720T S4 ?
Sent from my SPH-L720T using xda app-developers app
Click to expand...
Click to collapse
I have Spark (tri-band) network and Google Fiber in KC. Here are my speedtest results. The top 3 results are GS5 on Google Fiber WiFi, the bottom 3 results on Sprint Spark LTE.
https://dl.dropboxusercontent.com/u/3812896/Pics/Android/GFiber Sprint SG5.png
Why spark being the fastest networks, can't talk and data same time.... Nonsense.
Sent from my SPH-L710 using XDA Premium 4 mobile app
Im not in a spark area but still getting much better 4g speeds than my Note 2. Be it modem or whatever its nice
eyecon82 said:
yea...sprint hasn't upgraded their network to enable simultaneous voice and LTE with spark....but i heard they are working on....i hope its not region based and they can get all the towers working on it at once
i miss being able to mess around on the internet while on hold
Click to expand...
Click to collapse
It has nothing to do with upgrading spark to enable voice and lte, sorry but that is completely wrong. Its device specific and not the network, the reason why its not possible is because there is only one radio path with the current crop of tri-band devices which makes it impossible to have lte and voice at the same time so nothing can be done on the network side to make it work. The reason why it was possible on previous non tri-band devices was because they had more than one radio path. I am sure its possible but maybe it just proved too costly and too inefficient to implement Also keep in mind that none of the other wireless carriers can do voice and lte at the same time. The gs5 on att/tmobile, once a call is initiated will drop lte all together but at least they still have the luxury of hspa to fall back on for data in the mean time.
themuffinman said:
It has nothing to do with upgrading spark to enable voice and lte, sorry but that is completely wrong. Its device specific and not the network, the reason why its not possible is because there is only one radio path with the current crop of tri-band devices which makes it impossible to have lte and voice at the same time so nothing can be done on the network side to make it work. The reason why it was possible on previous non tri-band devices was because they had more than one radio path. I am sure its possible but maybe it just proved too costly and too inefficient to implement Also keep in mind that none of the other wireless carriers can do voice and lte at the same time. The gs5 on att/tmobile, once a call is initiated will drop lte all together but at least they still have the luxury of hspa to fall back on for data in the mean time.
Click to expand...
Click to collapse
Are you sure? Everything I gave read indicates it's a network issue rather than hardware
The s4 didn't have the svdo radio so we lost simultaneous voice and data on 3g and the original s4 could do it without the extra radio
Sent from my SM-G900P using Tapatalk
eyecon82 said:
Are you sure? Everything I gave read indicates it's a network issue rather than hardware
The s4 didn't have the svdo radio so we lost simultaneous voice and data on 3g and the original s4 could do it without the extra radio
Sent from my SM-G900P using Tapatalk
Click to expand...
Click to collapse
Non-triband Sprint LTE phones "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. We were alerted to this months in advance. However, we did not realize that the network would have to run on Circuit Switched Fallback in order for this to work and what the ramifications of this would be."
Source: http://s4gru.com/index.php?/blog/1/...-due-to-circuit-switched-fallback-technology/
It's a very informative and extensive read-up and explains, sadly, what is going on.
LordLugard said:
Non-triband Sprint LTE phones "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. We were alerted to this months in advance. However, we did not realize that the network would have to run on Circuit Switched Fallback in order for this to work and what the ramifications of this would be."
Source: http://s4gru.com/index.php?/blog/1/...-due-to-circuit-switched-fallback-technology/
It's a very informative and extensive read-up and explains, sadly, what is going on.
Click to expand...
Click to collapse
great article and it proves my point that simultaneous voice and data will be available via triband LTE in the future and its a network issue, not phone hardware
"Yes, this is an issue of all Triband devices, as they are dependent on CSFB to be present on the Sprint network in order to be able to use LTE.
The problem is not Triband LTE devices, but rather that the Sprint network is not currently upgraded enough in all places that currently have LTE"
Basically, Switchback Mode needs to be enabled for us to have simultaneous voice and data over LTE
" 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"
Prior to triband phones, there were 2 radios...one for CDMA, and one for LTE...but now it's all over LTE radio for both calls and data...but not yet enabled, so it can only do 1 at a time currently
---------- Post added at 07:57 AM ---------- Previous post was at 07:09 AM ----------
LordLugard said:
"In contrast, Sprint Triband LTE devices do not support two separate transmission paths. They have one path, shared by voice/SMS and data. We were alerted to this months in advance. However, we did not realize that the network would have to run on Circuit Switched Fallback in order for this to work and what the ramifications of this would be."
Click to expand...
Click to collapse
it says right there in in bold in your quote that you need "Circuit Switched Fallback" to have 2 transmission paths on one radio...but it is not yet enabled
GS5 performs really well on tri-band. I'm getting up to around 40Mbps indoors at home, though I'm just a few blocks from a cellsite. The first 3 results are on Google Gigabit Fiber in KC, the second three are Sprint Spark.
https://dl.dropboxusercontent.com/u/3812896/Pics/Android/GFIber Sprint GS5.png
BTW, more on Google Fiber here...
http://www.dslreports.com/forum/r29157624-Google-Fiber-Kansas-City
eyecon82 said:
Are you sure? Everything I gave read indicates it's a network issue rather than hardware
The s4 didn't have the svdo radio so we lost simultaneous voice and data on 3g and the original s4 could do it without the extra radio
Sent from my SM-G900P using Tapatalk
Click to expand...
Click to collapse
Yes, I am very sure, its in the radio design. Even with previous devices that could do svdo and svlte, it was because of radio design of the hardware and not because of the network.
themuffinman said:
Yes, I am very sure, its in the radio design. Even with previous devices that could do svdo and svlte, it was because of radio design of the hardware and not because of the network.
Click to expand...
Click to collapse
Read post #12. You are wrong, respectfully
yes, there is 1 radio..but spark will allow both voice and data over LTE once switchback mode is enabled, hence allowing 2 channels with 1 radio
Sent from my SM-G900P using Tapatalk
xenokc said:
GS5 performs really well on tri-band. I'm getting up to around 40Mbps indoors at home, though I'm just a few blocks from a cellsite. The first 3 results are on Google Gigabit Fiber in KC, the second three are Sprint Spark.
https://dl.dropboxusercontent.com/u/3812896/Pics/Android/GFIber Sprint GS5.png
BTW, more on Google Fiber here...
http://www.dslreports.com/forum/r29157624-Google-Fiber-Kansas-City
Click to expand...
Click to collapse
Spark in NYC has been a disappointment for me. Haven't seen or noticed any improvements at all (I have an LG G2). Typically test as low as 2Mb to as high as 9Mb usually, which is just fine by me. Fast enough to stream stuff without buffering (most times) but it's just not consistent.
Frankly I'll trade some of that theoretical 40Mbps LTE speeds for better LTE coverage and 3G speeds and the ability to talk and surf over 3G and LTE any day. (I know it's not a big deal for lots of folks but i sure enjoyed it when I had the Galaxy S3 and Note 2).
Definitely jealous of your speeds though.
eyecon82 said:
great article and it proves my point that simultaneous voice and data will be available via triband LTE in the future and its a network issue, not phone hardware
"Yes, this is an issue of all Triband devices, as they are dependent on CSFB to be present on the Sprint network in order to be able to use LTE.
The problem is not Triband LTE devices, but rather that the Sprint network is not currently upgraded enough in all places that currently have LTE"
Basically, Switchback Mode needs to be enabled for us to have simultaneous voice and data over LTE
" 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"
Prior to triband phones, there were 2 radios...one for CDMA, and one for LTE...but now it's all over LTE radio for both calls and data...but not yet enabled, so it can only do 1 at a time currently
---------- Post added at 07:57 AM ---------- Previous post was at 07:09 AM ----------
it says right there in in bold in your quote that you need "Circuit Switched Fallback" to have 2 transmission paths on one radio...but it is not yet enabled
Click to expand...
Click to collapse
I am sorry but I don't think you understand what Robert was trying to say in that article. The reason why its not possible is because there is only one transmission path so its only possible for you to be connected either cdma or lte. The purpose of csfb is to let the tri-band device to know when to actually switch, thats why tri-band devices that are in areas that are not fully upgraded with csfb will have connection issues because it doesn't know when to switch. Simultaneous voice and data will not happen with the current hardware design of tri-band devices regardless of whats done in the network side.
EDIT: And when it talks about csfb is needed, its not needed to be able to do cdma and lte modes at the same time its needed to tell the device when to switch to either cdma or lte.
themuffinman said:
I am sorry but I don't think you understand what AJ was trying to say in that article. The reason why its not possible is because there is only one transmission path so its only possible for you to be connected either cdma or lte. The purpose of csfb is to let the tri-band device to know when to actually switch, thats why tri-band devices that are in areas that are not fully upgraded with csfb will have connection issues because it doesn't know when to switch. Simultaneous voice and data will not happen with the current hardware design of tri-band devices regardless of whats done in the network side.
Click to expand...
Click to collapse
it says it right below
" 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"
themuffinman said:
I am sorry but I don't think you understand what AJ was trying to say in that article. The reason why its not possible is because there is only one transmission path so its only possible for you to be connected either cdma or lte. The purpose of csfb is to let the tri-band device to know when to actually switch, thats why tri-band devices that are in areas that are not fully upgraded with csfb will have connection issues because it doesn't know when to switch. Simultaneous voice and data will not happen with the current hardware design of tri-band devices regardless of whats done in the network side.
Click to expand...
Click to collapse
kunundrum78 said:
it says it right below
" 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"
Click to expand...
Click to collapse
yep....read the above....
---------- Post added at 02:36 PM ---------- Previous post was at 02:35 PM ----------
themuffinman said:
EDIT: And when it talks about csfb is needed, its not needed to be able to do cdma and lte modes at the same time its needed to tell the device when to switch to either cdma or lte.
Click to expand...
Click to collapse
yea, but it says BOTH...not "either"
"allow a single mode/single path network to operate in two modes, both CDMA and LTE"
kunundrum78 said:
it says it right below
" 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"
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eyecon82 said:
yep....read the above....
---------- Post added at 02:36 PM ---------- Previous post was at 02:35 PM ----------
yea, but it says BOTH...not "either"
"allow a single mode/single path network to operate in two modes, both CDMA and LTE"
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Come on guys, you don't understand what the article is saying:
"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."
When it talks about both cdma and lte modes, its not meaning both at the same time, it means being able to switch between the two seamlessly. Without csfb there will be issues switching back and forth for tri-band devices. In the last paragraph I quoted from s4gru, it tells you right there how it works. When you get a call csfb tells the device what to do so you can get the call, the transition is seamless except for the loss of data availability. Read the whole article not just that sentence.
EDIT: Here is a link to the thread over on s4gru that talks about it in more detail, ask your questions there to see what they say.
http://s4gru.com/index.php?/topic/5001-breaking-band-tri-band-lte-ecsfb-issues-thread/
Hi everyone. Quick question. I searched but didn't find much, but I was wanting to use LTE only (*#*#4636#*#*, Phone, LTE Only), and it does work but on Sprint, it disables 1x and pretends like the phone has no coverage and then does the "Searching for Service" and the battery drains like crazy. Any ideas?
MrObvious said:
Hi everyone. Quick question. I searched but didn't find much, but I was wanting to use LTE only (*#*#4636#*#*, Phone, LTE Only), and it does work but on Sprint, it disables 1x and pretends like the phone has no coverage and then does the "Searching for Service" and the battery drains like crazy. Any ideas?
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That mode disables all voice and texting abilities, I don't think you can use that on a phone, especially not a phone on Sprint.
turn it back, if the phone doesn't think it has a good enough signal to use LTE, trust it and drop to 3G you'll be better off.
Use global setting for Sprint
Sent from my Nexus 5
I don't want 3g though because my phone has the power to get a signal but if it gets down to 1 bar roughly (driving between towers and I'm in a fairly big city so it's not a coverage/reception issue) and it drops to 3g, despite the fact that it'll get stronger if it waits 5 more seconds.
you can not get/make phonecalls on lte only, period. its for data only.
indeed. setting it through the dialer to lte only, makes that lte data channel the only channel, it kills the ehrpd / 1x cdma 200 ip hand-off needed for voice paging to & from the network..
but NOW i know WHY you were forcing lte only via the dialer (didn't know at 1st)
but where you are (if you're on srpint) this is what' was reported happening -
Sprint used to have "same-as-native" 3G service in the western half of Kansas via those carriers, and even used to show it as Native on their coverage maps. Then it changed to Off-Network roaming a couple years ago. They even stopped Native service along I-70 through most of Kansas and eastern Colorado. Sounds like some of those carriers aren't being too accommodating to Sprint nowadays.
via the HoFo App
i didn't know, the hometown of sprint, was having such a hard time covering, it's own home state..
j'vai said:
indeed. setting it through the dialer to lte only, makes that lte data channel the only channel, it kills the ehrpd / 1x cdma 200 ip hand-off needed for voice paging to & from the network..
but NOW i know WHY you were forcing lte only via the dialer (didn't know at 1st)
but where you are (if you're on srpint) this is what' was reported happening -
Sprint used to have "same-as-native" 3G service in the western half of Kansas via those carriers, and even used to show it as Native on their coverage maps. Then it changed to Off-Network roaming a couple years ago. They even stopped Native service along I-70 through most of Kansas and eastern Colorado. Sounds like some of those carriers aren't being too accommodating to Sprint nowadays.
via the HoFo App
i didn't know, the hometown of sprint, was having such a hard time covering, it's own home state..
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That's inaccurate for me as I'm in central KS. That only applies for west KS. I'm in a native market with LTE, NV, and band 25 and 26.
MrObvious said:
I don't want 3g though because my phone has the power to get a signal but if it gets down to 1 bar roughly (driving between towers and I'm in a fairly big city so it's not a coverage/reception issue) and it drops to 3g, despite the fact that it'll get stronger if it waits 5 more seconds.
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ok.. central ks..
what were your settings prior, to lte only?
Just LTE/CDMA. There are times I want to set LTE only so I don't drop 4g. Of course I have service with that setting.
Sent from my Nexus 5 using xda app-developers app
you know, that going via the keypad to set LTE only you'll kill the fall back bridge to 1xrtt voice & evdo 3g, right?
& every time you want to have voice service you'd have to do the toggle to undo LTE only , then when you want it back LTE only ..
you say "you don't want evdo 3g" but the devil in the details are, you'll not have voice service ither, that way..
is it worth that trouble?
I just got the Airave and I was wondering how come when I use CDMA only for "mobile networks", I get 5-6 bars i.e. pretty much perfect but when I select CDMA/LTE, I get 1 bar..sometimes two.
More importantly, Airave hasn't fixed this issue but when I go to CDMA only, it seems perfect. How do I go about fixing this?
Thanks
PS - It seems like at home, I have weak LTE (which is what it's connected to by default) rather than holding onto a STRONG 3G signal....how do I make the S5 favor strong 3G over weak LTE?
Which kills more? 3G at -70db or LTE at -102db?
The Airave is only a 3g CDMA over Broadband solution. When you choose CDMA only it's the only choice and is a strong connection. With LTE enabled the device is still trying to keep an LTE link but since your coverage area sucks it keeps falling off. Seems the Sprint GS5 has that issue for everyone where there is bad LTE coverage. It may also be that "Connections Optimizer" crap.
I'd suggest tasker or a similar app for automating setting your mobile network to CDMA Only when at home or elsewhere LTE is crappy and creating another to revert back to LTE/CDMA. There a bunch of threads with people trying to figure out how to optimize their LTE band for their specific coverage. I burned a lot of battery with my N4 constantly trying to decide whether to stick with HSPA+ or other crappy alternative networks. I don't think Google or the manufacturers have done a good job of considering what happens under less than good conditions signal wise.
GorillaPimp said:
The Airave is only a 3g CDMA over Broadband solution. When you choose CDMA only it's the only choice and is a strong connection. With LTE enabled the device is still trying to keep an LTE link but since your coverage area sucks it keeps falling off. Seems the Sprint GS5 has that issue for everyone where there is bad LTE coverage. It may also be that "Connections Optimizer" crap.
I'd suggest tasker or a similar app for automating setting your mobile network to CDMA Only when at home or elsewhere LTE is crappy and creating another to revert back to LTE/CDMA. There a bunch of threads with people trying to figure out how to optimize their LTE band for their specific coverage. I burned a lot of battery with my N4 constantly trying to decide whether to stick with HSPA+ or other crappy alternative networks. I don't think Google or the manufacturers have done a good job of considering what happens under less than good conditions signal wise.
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It's not so much that it falls off but that the signal for LTE is low....around -112db while CDMA/3G is around -70db (full bards).
I wish there was a way to make "CDMA only" turn on at my house while LTE/4G turning on while I leave it....How do I do this using tasker or a similar app?
Then again, I don't really download anything outside of my house....only time I use data outside my house is for Waze or Snapchat or Instagram or Facebook....and they seem to load fine under 3G...it's not worth the battery drain to use 4G for those applications.
The Galaxy S5 only has one radio so this causes huge problems with use of a device like an Airwave. Since Sprint didn't include WiFi calling in the S5 you have no real solution except to force the S5 in to CDMA only mode. It requires a reboot and is annoying. This is ridiculous by Sprint. I went and got a more advanced phone with two radios (The Galaxy S4) and now have no problems with one radio staying attached to 1x Airwave and LTE. I returned my S5 and am now very happy.
thegame2388 said:
It's not so much that it falls off but that the signal for LTE is low....around -112db while CDMA/3G is around -70db (full bards).
I wish there was a way to make "CDMA only" turn on at my house while LTE/4G turning on while I leave it....How do I do this using tasker or a similar app?
Then again, I don't really download anything outside of my house....only time I use data outside my house is for Waze or Snapchat or Instagram or Facebook....and they seem to load fine under 3G...it's not worth the battery drain to use 4G for those applications.
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With Tasker or similar you'd want to set it up to switch mobile networks to LTE/CDMA based on your location but like rocket said it's a reboot every time - aka PITA. I just set up a shortcut to Mobile Networks and change if it's a problem. Rebooting often sucks. I don't know why they'd give the S4 two radios and the S5 one. Seems stupid. I'm not sure if you can change to CDMA only via the debugging options - that may not require a reboot. There's a big thread about optimizing LTE bands that has a bunch of info on that.
GorillaPimp said:
With Tasker or similar you'd want to set it up to switch mobile networks to LTE/CDMA based on your location but like rocket said it's a reboot every time - aka PITA. I just set up a shortcut to Mobile Networks and change if it's a problem. Rebooting often sucks. I don't know why they'd give the S4 two radios and the S5 one. Seems stupid. I'm not sure if you can change to CDMA only via the debugging options - that may not require a reboot. There's a big thread about optimizing LTE bands that has a bunch of info on that.
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Alrighty. Looks like I'll use CDMA at my house for Airave with Wi-Fi for downloading stuff and have CDMA for downloading stuff while I'm beyond the borders of my house.
I don't "download" anything anyway.
You will be UNABLE TO CONNECT TO THE AIRAVE unless your are in "CDMA ONLY".
Go to
settings/network connections/more networks/mobile networks
and change to CDMA .
( Do NOT select CDMA/LTE until you LEAVE the Airave vicinity)
If you are indeed connected to the Airave, you will hear a recording telling you that you are if you call *99.
You will have to re-enable the CDMA/LTE everytime you leave the vicinity of the Airave to get LTE service.
Sprint Tier II Tech informed be of the above, and I have verified it all by personally testing the above.
Now, here is the real question:
What are the EXACT DIFFERENCES between using the "Wi-Fi Calling Feature" with NO Airave - AND- using the Airave WITHOUT using W-Fi Calling.????
tt c6 said:
You will be UNABLE TO CONNECT TO THE AIRAVE unless your are in "CDMA ONLY".
Go to
settings/network connections/more networks/mobile networks
and change to CDMA .
( Do NOT select CDMA/LTE until you LEAVE the Airave vicinity)
If you are indeed connected to the Airave, you will hear a recording telling you that you are if you call *99.
You will have to re-enable the CDMA/LTE everytime you leave the vicinity of the Airave to get LTE service.
Sprint Tier II Tech informed be of the above, and I have verified it all by personally testing the above.
Now, here is the real question:
What are the EXACT DIFFERENCES between using the "Wi-Fi Calling Feature" with NO Airave - AND- using the Airave WITHOUT using W-Fi Calling.????
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the differnece is the range of the signal / router range of 2.4 ghz/5.0 vs airave 5k to 6k sq ft. and of course haveing a phone made before the s5. any lte+ or sprint spark device will not stay connected to an airave device without network mode selection and crossed fingers. and due to that- wifi calling was born and pushed to the front lines
When you're at home, why not just leave WiFi on for data, and WiFi Calling on for phone calls? That's what I do. I used to use an Airave, but I stopped using my Airave when I got a Galaxy S5 because it has WiFi Calling. (BTW. If you leave WiFi Calling on, your phone will automatically switch to cellular calling when you leave the house.)