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Verizon has a Voice over LTE system coming out in the next year(according to them). That would allow the LTE radio to not just be used for sweet delicious data, but be used for voice(minutes?) too. Is this something that the current Galaxy Nexus will be capable of in the future via firmware update? This would solve some of the battery draining problems related to using a LTE phone. It would suck burro pene having a relatively new LTE phone and not be able to use Verizon's forthcoming VoLTE platform in a few months, if there is a huge benefit from it.
Pacifik said:
Verizon has a Voice over LTE system coming out in the next year(according to them). That would allow the LTE radio to not just be used for sweet delicious data, but be used for voice(minutes?) too. Is this something that the current Galaxy Nexus will be capable of in the future via firmware update? This would solve some of the battery draining problems related to using a LTE phone. It would suck burro pene having a relatively new LTE phone and not be able to use Verizon's forthcoming VoLTE platform in a few months, if there is a huge benefit from it.
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I don't see how using LTE for voice AND data will make battery life any better.
Chirality said:
I don't see how using LTE for voice AND data will make battery life any better.
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turn off the CDMA radio completely?
crazy talk said:
turn off the CDMA radio completely?
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The LTE radio is the one that burns the battery, not the CDMA radio. So once you start doing voice and data both over LTE its gonna rape the battery lol.
Currently you get a call it's handed off to the CDMA antenna. When on LTE both the CDMA for voice and LTE for data are on. Whereas with VoLTE while on LTE there is no hand off, therefore no secondary voice antenna needs to be on as the LTE handles it.
Pacifik said:
Currently you get a call it's handed off to the CDMA antenna. When on LTE both the CDMA for voice and LTE for data are on. Whereas with VoLTE while on LTE there is no hand off, therefore no secondary voice antenna needs to be on as the LTE handles it.
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That's not true at all. When the CDMA radio is on for voice communication it turns *off* the LTE radio. We know this because voice and data at the same time are not possible on most LTE phones.
If you used the LTE radio for voice communication, as well as data, it would *completely* destroy your battery life.
hotleadsingerguy said:
That's not true at all. When the CDMA radio is on for voice communication it turns *off* the LTE radio. We know this because voice and data at the same time are not possible on most LTE phones.
If you used the LTE radio for voice communication, as well as data, it would *completely* destroy your battery life.
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On Verizon LTE phones you can 100% definitely use 4g data while on 3g voice, most can't do 3g simultaneous voice and data. While LTE ants use more power, powering up a second antenna while already using the LTE will hurt even more. There will also be usually be an increase in call quality on an LTE call. All of this is under the assumption you actually plan on using the 4G network.
Important question that needs an answer
I too am considering getting the new Galaxy Nexus on VZ. The battery issue I find secondary to my main concern, but it should be obvious that using only one radio (LTE) will have power saving benefits vs two radios. If just using voice, it may be a net loss of battery life. I guess we'll see how LTE stacks up to CDMA power consumption.
But here is the important question: will the SGN be upgradeable to support VoLTE (Voice over LTE) and the accompanying high-definition audio codec AMR-WB. You see, your horrible-sounding cell calls will transform to sounding better than a land line (assuming, of course, a compatible phone on the other end). It is even conceivable one could call VoIP landlines that support this codec and get good audio quality.
So you see, it is really all about the audio quality. Battery life is secondary, and may go up or down depending on your useage of voice only or voice and data.
[email protected] said:
I too am considering getting the new Galaxy Nexus on VZ. The battery issue I find secondary to my main concern, but it should be obvious that using only one radio (LTE) will have power saving benefits vs two radios. If just using voice, it may be a net loss of battery life. I guess we'll see how LTE stacks up to CDMA power consumption.
But here is the important question: will the SGN be upgradeable to support VoLTE (Voice over LTE) and the accompanying high-definition audio codec AMR-WB. You see, your horrible-sounding cell calls will transform to sounding better than a land line (assuming, of course, a compatible phone on the other end). It is even conceivable one could call VoIP landlines that support this codec and get good audio quality.
So you see, it is really all about the audio quality. Battery life is secondary, and may go up or down depending on your useage of voice only or voice and data.
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If the wideband voice codec is implemented in hardware, then sure it can be a software upgrade. Otherwise its up to the CPU to do all the processing which isn't ideal. Still could be done though, just not in an optimal fashion.
the downsides outweigh the very small benefits. yeah, just using a lte antenna and turning off cdma will net you a small gain, but having lte on 24/7 will burn through the battery quickly and using it for voice just to gain a little clarity will still burn through the battery, just now you're using more power compared to cdma voice. nice try though.
pukemon said:
the downsides outweigh the very small benefits. yeah,
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Then get a CDMA phone and keep having your phone conversations in low-def. Each to their own.
Personally, I absolutely despise cellphone audio quality (what? What did you say?) and will gladly burn a few extra milliamps, if indeed there is much of a penalty, for the few minutes I am actually talking on the phone.
---------- Post added at 04:41 PM ---------- Previous post was at 04:37 PM ----------
aadvanced1 said:
If the wideband voice codec is implemented in hardware, then sure it can be a software upgrade. Otherwise its up to the CPU to do all the processing which isn't ideal. Still could be done though, just not in an optimal fashion.
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My understanding is that the voice codec must be in the modem firmware. Supposedly, from what I have read on the internet, the SGN uses the same SGS Thomson modem as the Samsung Galaxy II, which is capable of VoLTE. Again, reading on the internet, VZ has specifically asked Samsung (this was noted in the FCC filing) to ship it without VoLTE, presumably for better compatibility with their network today.
So, the million dollar question is: Is this just a firmware upgrade to enable when VoLTE goes live on VZ? Pretty sure modem firmware is different from Android OS. Not sure if it is upgradeable after the fact. Is this what is commonly refered to as "baseband firmware"?
Does anybody know more about the guts of these phones?
pass. i'll stick to gsm for a while longer. much longer. much better on the battery, call quality is satisfactory and i can travel with it. when lte power consumption is comparable to that of current hspa/cdma radios i might consider switching. until then i'm going to try and make my nexus last a couple years.
[email protected] said:
Then get a CDMA phone and keep having your phone conversations in low-def. Each to their own.
Personally, I absolutely despise cellphone audio quality (what? What did you say?) and will gladly burn a few extra milliamps, if indeed there is much of a penalty, for the few minutes I am actually talking on the phone.
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Totally agreed. Going from a cell conversation to a Skype to Skype call makes you realize how undescribably bad cell voice quality is.
here's the million dollar question: With voLTE, can I simultaneously use voice and data over 4g?
Pacifik said:
Verizon has a Voice over LTE system coming out in the next year(according to them). That would allow the LTE radio to not just be used for sweet delicious data, but be used for voice(minutes?) too. Is this something that the current Galaxy Nexus will be capable of in the future via firmware update? This would solve some of the battery draining problems related to using a LTE phone. It would suck burro pene having a relatively new LTE phone and not be able to use Verizon's forthcoming VoLTE platform in a few months, if there is a huge benefit from it.
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Click to collapse
It's a really good question. If I had to bet, I'd say yes. I'd bet they've got Samsung putting the codec into the modem firmware already. I'd bet their 4G device testing already includes VoLTE IMS along with one or two production test markets for VZW field testing. I think the odds are good. That said, they don't exactly advertise on the box:
"Supports VoLTE so in about 9 months your battery life won't completely suck and maybe you'll get HD audio if you're seriously lucky."
Samzebian said:
here's the million dollar question: With voLTE, can I simultaneously use voice and data over 4g?
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Yes. You should be able to do this even without VoLTE using 3G voice and 4G data. Different radios.
Samzebian said:
here's the million dollar question: With voLTE, can I simultaneously use voice and data over 4g?
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Voice over LTE treats the call as data, it's the same thing as a voip call essentially.
I'm on att and my nexus constantly goes from h to e to 3g and all around. It pisses me off. I called att and had a case opened because my phone was on a 3g plan and they can't change it to a 4g hspa + plan because my device is unknown. Is anyone else on att and had this? What did you do?
The phone should always switch back to UMTS (3G) when the data connection is "idle", and only switch to HSPA+ (H) when data is actively transferring. This is a power-saving feature of GSM because UMTS has a much lower power draw than HSPA+. Your phone should not be switching down to EDGE unless you're in a bad coverage area (0-1 bars of 3G, for example).
As far as AT&T not provisioning the plan for HSPA+ "4G", how did you start the account? If it was started with any other non-LTE smartphone, you should be provisioned for HSPA+ already. AT&T does do some weird provisioning and uses APNs often to restrict speeds, but unless you were previously on an LTE plan you should be provisioned just fine for the full speeds.
If you're constantly switching between EDGE and 3G but you're in a good signal area, you may have problems with your SIM. It may be easiest to go into a store to get the SIM replaced, and talk to someone to make sure its provisioned properly for HSPA+. I really hate that AT&T messes with this stuff, it makes it hard to move around the SIM into different devices, a huge feature of being on a GSM carrier.
Try the scotch tape trick, put 1 layer of tape on the non contact side of sim card. There have been issues with sims being too thin by less than .5mm and not making good connection.
If that doesn't work, get a new sim from any att store, it's free.
Sent from my HTC One X using xda app-developers app
martonikaj said:
The phone should always switch back to UMTS (3G) when the data connection is "idle", and only switch to HSPA+ (H) when data is actively transferring. This is a power-saving feature of GSM because UMTS has a much lower power draw than HSPA+. Your phone should not be switching down to EDGE unless you're in a bad coverage area (0-1 bars of 3G, for example).
As far as AT&T not provisioning the plan for HSPA+ "4G", how did you start the account? If it was started with any other non-LTE smartphone, you should be provisioned for HSPA+ already. AT&T does do some weird provisioning and uses APNs often to restrict speeds, but unless you were previously on an LTE plan you should be provisioned just fine for the full speeds.
If you're constantly switching between EDGE and 3G but you're in a good signal area, you may have problems with your SIM. It may be easiest to go into a store to get the SIM replaced, and talk to someone to make sure its provisioned properly for HSPA+. I really hate that AT&T messes with this stuff, it makes it hard to move around the SIM into different devices, a huge feature of being on a GSM carrier.
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Thanks so much for the help I'll head into a store and see what the issue really may be.
c5satellite2 said:
Try the scotch tape trick, put 1 layer of tape on the non contact side of sim card. There have been issues with sims being too thin by less than .5mm and not making good connection.
If that doesn't work, get a new sim from any att store, it's free.
Sent from my HTC One X using xda app-developers app
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Funny you said that its the first thing I tried
I finally got 4G LTE on my block. I am getting great speeds. The only problem is , when I am in a call it reverts back to 4G. Is anyone else experiencing this problem? I am rooted, running Darthstalker S4 V2. I called T Mobile today to put in a ticket. They said it's the first time they hear of this, and it should not be happening. Maybe between us all here in the community we can pinpoint the problem. Curious to hear from you all.
I am pretty sure this is normal behavior. I am not sure why, but that is what my phone has done since day one (the indicator anyway, I haven't tested actual speeds). The HD calling works, so I assume it's still LTE.
LAkingsfan3131 said:
I finally got 4G LTE on my block. I am getting great speeds. The only problem is , when I am in a call it reverts back to 4G. Is anyone else experiencing this problem? I am rooted, running Darthstalker S4 V2. I called T Mobile today to put in a ticket. They said it's the first time they hear of this, and it should not be happening. Maybe between us all here in the community we can pinpoint the problem. Curious to hear from you all.
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I beleive LTE is only for data. Like on the S3 it would show H while on data then 3G when not using data.
Sideman7 said:
I am pretty sure this is normal behavior. I am not sure why, but that is what my phone has done since day one (the indicator anyway, I haven't tested actual speeds). The HD calling works, so I assume it's still LTE.
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I have tested the speed while in call, and they do drop to 4G. The TMo rep told me it wasn't supposed to so that. How can you tell the HD calling is working?
LAkingsfan3131 said:
I have tested the speed while in call, and they do drop to 4G. The TMo rep told me it wasn't supposed to so that. How can you tell the HD calling is working?
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Speeds were good enough for me while on a call I haven't really noticed if there was a decrease. As far as the HD calling is concerned, there is no indicator, but the sound quality is vastly superior (the first time you experience it, you will understand). Both phones need to have hd voice capability and be in LTE coverage. My understanding was that it requires either bandwidth or something else the LTE towers provide. I don't even think it works with wifi calling...
Sideman7 said:
Speeds were good enough for me while on a call I haven't really noticed if there was a decrease. As far as the HD calling is concerned, there is no indicator, but the sound quality is vastly superior (the first time you experience it, you will understand). Both phones need to have hd voice capability and be in LTE coverage. My understanding was that it requires either bandwidth or something else the LTE towers provide. I don't even think it works with wifi calling...
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I guess I have a reason to make my wife get a new phone now!! http://forum.xda-developers.com/images/smilies/fingers-crossed.gif
As far as data speeds while on a call they do greatly suffer. Here is a speed test while on a call. If both phones have to be on LTE to experience HD calling doesn't that mean we have to stay on LTE while in a call? As you can see in the screen shot, signal reverts back to 4G. Now I'm back to square one.
Here is your answer: "4G LTE does not carry voice services, so calls will fall back to our HSPA+ network until voice over LTE (VoLTE) software is ready." (Click here for their support page.)
There is nothing wrong with your phone, this is just the way it works currently. I am not sure about the HD voice since that theoretically requires LTE...
LAkingsfan3131 said:
I guess I have a reason to make my wife get a new phone now!! http://forum.xda-developers.com/images/smilies/fingers-crossed.gif
As far as data speeds while on a call they do greatly suffer. Here is a speed test while on a call. If both phones have to be on LTE to experience HD calling doesn't that mean we have to stay on LTE while in a call? As you can see in the screen shot, signal reverts back to 4G. Now I'm back to square one.
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I think this pretty much sums it up.
While the industry has seemingly standardized on VoLTE for the future, the demand for voice calls today has led LTE carriers to introduce CSFB as a stopgap measure. When placing or receiving a voice call, LTE handsets will fall back to old 2G or 3G networks for the duration of the call.
I found the info here http://en.wikipedia.org/wiki/LTE_(telecommunication)
I read there are some issues with the Galaxy S6 and some newer phones on Verizon being unable to do native simultaneous voice + data. I think because of a limit of the # of radios and/or antennas. What can we expect with the 5X on VZW? Thank you!
All new phones can do simultaneous voice and data only with VoLTE or while connected to WiFi. When connected to LTE (and no VoLTE) or 3G data they will drop to CDMA 1X if a call comes in. This is because they only have one antenna pathway and one radio. If they had a separate radio for LTE (like done older phones) it would drain battery almost twice as fast since mobile connection is one of your larger battery users.
Sent from my Nexus 6 using Tapatalk
_Dennis_ said:
All new phones can do simultaneous voice and data only with VoLTE or while connected to WiFi. When connected to LTE (and no VoLTE) or 3G data they will drop to CDMA 1X if a call comes in. This is because they only have one antenna pathway and one radio. If they had a separate radio for LTE (like done older phones) it would drain battery almost twice as fast since mobile connection is one of your larger battery users.
Sent from my Nexus 6 using Tapatalk
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Ugh, what I feared. How do people do Nav and have phone calls at the same time? Is this going to work with VZW VoLTE on day one? May have made sense to design with two radios and two antennas and only activate the second one when necessary?
hytekjosh said:
Ugh, what I feared. How do people do Nav and have phone calls at the same time? Is this going to work with VZW VoLTE on day one? May have made sense to design with two radios and two antennas and only activate the second one when necessary?
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Any time LTE is on the second would have to be on, or it wouldn't be able to seamlessly take the call, so that wouldn't have worked.
If your call isn't very long navigation would still work fine, it caches a bit in case of signal drop. The other option would be to download the route ahead of time, Google can do it now I think.
I have a feeling it should have VoLTE though, which would give you voice and data.
http://www.droid-life.com/2015/03/1...e-and-data-now-works-on-nexus-6-with-verizon/
Sent from my Nexus 6 using Tapatalk
_Dennis_ said:
Any time LTE is on the second would have to be on, or it wouldn't be able to seamlessly take the call, so that wouldn't have worked.
If your call isn't very long navigation would still work fine, it caches a bit in case of signal drop. The other option would be to download the route ahead of time, Google can do it now I think.
I have a feeling it should have VoLTE though, which would give you voice and data.
http://www.droid-life.com/2015/03/1...e-and-data-now-works-on-nexus-6-with-verizon/
Sent from my Nexus 6 using Tapatalk
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Will the same limitations be on each carrier (ie. if I switch to AT&T I still need to use VoLTE for simultaneous voice + data)? Thank you!!
hytekjosh said:
Will the same limitations be on each carrier (ie. if I switch to AT&T I still need to use VoLTE for simultaneous voice + data)? Thank you!!
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Nope, the way GSM and CDMA works are different. Say you don't have VoLTE and are on an LTE connection. The tower also has a spot for you on HSPDA and GSM if on Tmo or AT&T, or on CDMA if on Sprint or Verizon. If you get a call you fallback to HSPDA or GSM. A similar thing happens on CDMA. The difference is CDMA can't do voice and data on the same connection, GSM and HSPDA can do both.
Sent from my Nexus 6 using Tapatalk
_Dennis_ said:
Nope, the way GSM and CDMA works are different. Say you don't have VoLTE and are on an LTE connection. The tower also has a spot for you on HSPDA and GSM if on Tmo or AT&T, or on CDMA if on Sprint or Verizon. If you get a call you fallback to HSPDA or GSM. A similar thing happens on CDMA. The difference is CDMA can't do voice and data on the same connection, GSM and HSPDA can do both.
Sent from my Nexus 6 using Tapatalk
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Really wish phones included a Ev radio so this would not be an issue. I wonder if the voice quality/codec on AT&T has improved over the years? Last I used them their voice quality was far inferior to VZW. May be time to consider a carrier switch.
I've not had problems with voice quality, the few times I call on AT&T. They weren't as good as Sprint (their new network has simply amazing voice quality, and data was OK lol).
Mostly I use Google voice via hangouts to make calls, so the network data is more important then voice quality.
Sent from my Nexus 6 using Tapatalk
_Dennis_ said:
All new phones can do simultaneous voice and data only with VoLTE or while connected to WiFi. When connected to LTE (and no VoLTE) or 3G data they will drop to CDMA 1X if a call comes in. This is because they only have one antenna pathway and one radio. If they had a separate radio for LTE (like done older phones) it would drain battery almost twice as fast since mobile connection is one of your larger battery users.
Sent from my Nexus 6 using Tapatalk
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How new? My S4 gets simultaneous voice/data on lte, but not on 3g. Are you sure you're right about this?
Well, the S4 is not a new phone. And yes I'm certain without advanced calling (or VoLTE) you will not have voice and data on LTE at the same time.
Sent from my Nexus 6 using Tapatalk
Something I'm just realizing...I have a lot of friends and offices that have cell phone amplifier / extender systems that only repeat 3G not LTE. With no 3G radio this phone will be only able to do 1x for voice/data?! I think its also crazy that pure data devices such as the MiFi/personal hotspots still include ability to do EvDo Rev A yet phones don't!
jackdubl said:
How new? My S4 gets simultaneous voice/data on lte, but not on 3g. Are you sure you're right about this?
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The S4 had extra antennas unlike the newer phones because of VoLTE. The S4 had both radios on at the same time which eats more battery on a call with VoLTE you have improved battery life during a call and do both at the same time. The move was intentional to save costs as well as battery life in the long run.
Sent from my SM-N920T using Tapatalk
I just got my Nexus 5X up and running on verizon. With my Galaxy Nexus I was about to take a phone call while tethering, but can't do that on this phone. Is there a fix for this? It's kind of a bummer because I tether often and take phone calls.
Edit: (12/18/2015) I figured it out. Chatted with VZW tech support to enable HD voice feature, and made sure "enhanced LTE mode" was on in settings. Voice+Data work simultaneously now!
Update: (1/19/2016) I have still intermittently had issues with simultaneously voice+data. I started to wonder if it could depend on who you are calling or what tower you are connected to. I powered down my phone and pulled the sim card for a few seconds, then rebooted and it worked again.
I cancelled service with verizon, and put my att sim card into this phone.
But the best data connect I can get is edge (2g). I don't expect this phone to get ATT's lte network, but is there a way to get 3g data connection? Edge is just too slow.
Also, is voice quality tied with network type? I feel the voice quality was worse in comparison to my ATT phone. But the signal shows full bars.
Thanks.
Edit: today it magically worked. I don't know what happened, as I didn't do anything to it. It is now running on HSPA+, with very nice speed.
whatever100 said:
I cancelled service with verizon, and put my att sim card into this phone.
But the best data connect I can get is edge (2g). I don't expect this phone to get ATT's lte network, but is there a way to get 3g data connection? Edge is just too slow.
Also, is voice quality tied with network type? I feel the voice quality was worse in comparison to my ATT phone. But the signal shows full bars.
Thanks.
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Did you configure the right APN settings for AT&T?
https://www.att.com/esupport/article.jsp?sid=KB424489&cv=820
konradsa said:
Did you configure the right APN settings for AT&T?
https://www.att.com/esupport/article.jsp?sid=KB424489&cv=820
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Yes, after setting it up I was able to connect to EDGE. But that is only 2g speed. I read online that many people were able to connect to 3g (HSPA+).
Some of them mentioned reporting IMEI to ATT. Would this matter?
whatever100 said:
Yes, after setting it up I was able to connect to EDGE. But that is only 2g speed. I read online that many people were able to connect to 3g (HSPA+).
Some of them mentioned reporting IMEI to ATT. Would this matter?
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Try to call ATT and make sure they provision your SIM card with 4G LTE service. (you might need an IMEI that is compatible with ATT LTE for them to activate that option)
sorry wrong post