2G vs. 3G
2G Advantage:
• way better battery life
3G Advantage:
• faster data connection
This is a subjective question> Is it worth it at the expense of increased battery consumption?
I have an HTC Diamond with a small 900 mAh battery. So for me, I mostly put mine into 2G and switch to 3G when I use my data connection.
Question: is 2G = 3G when it comes to voice quality? (I can't tell the difference)
...and are there any other 3G advantages that I have missed?
Technically 3G is used for voice as well, but whether you're on GPRS/EDGE/3G I don't think there's a noticeable difference. As for if 3G is worth it? Without question. I'm a huuuuge fan of Android, and I'm dying to get a phone that works with AT&T 3G... Obviously I was greatly disappointed when the Agora Pro was delayed. The G1 seems like the perfect phone for me in every way (except maybe build quality), GPS, WiFi, capacitive screen... But I refuse to buy any phone that doesn't give me 3G, EDGE is painful when you're used to HSPA.
"• can make/receive a call/txt while connected to the Internet (never miss a call)"
thats not a 3g thing thats a cell-phone operator equipment thing
i never lost a call because of grps
thats the real reason that grps was invented to replace
old cell-phone data traffic where you had to call the isp to get
Internet
I don't think it's the right question to ask.
besides the fact that it's individual, 3G and 2G are completely different.
2G provides the regular services which you don't need anything more for.
3G provides services which 2G does not and you will use only if you need them.
so the question is "what do you need?"
I have a polaris on 2G ALL the time... unless I want to connect to the internet.
(just a for instance)
btw, 3G is WAY "less healthy"
for instance, in israel, 2G broadcasts make your phone cast 0.042mW/kb
3G makes it cast 0.43mW/kb. it's like swimming in an ocean of endless EM waves.
that's of course, for an average phone, for full signal
nir36 said:
I don't think it's the right question to ask.
besides the fact that it's individual, 3G and 2G are completely different.
2G provides the regular services which you don't need anything more for.
3G provides services which 2G does not and you will use only if you need them.
so the question is "what do you need?"
I have a polaris on 2G ALL the time... unless you want to connect to the internet.
(just a for instance)
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Click to collapse
Yeah well, 3G is a data transfer speed. If you're not using data, there's no reason to have 3G.
Ok, then should the question be.........
E vs. 3G.....regarding call quality & battery consumption
Is there a difference?
or
What radio mode will consume the least amount of battery, Edge or 3G?
Edge consumes a lot less battery than 3G.
Call quality is the same....
Ok, so I will stick with Edge as my basis and switch when I need to use my data connection.
you don't need Edge either for calls. call quality doesn't change from 2G to Edge to 3G to 10G. voice is sampled in 44kHz at best. let's say 22kHz. 22kHz is nothing compared to what 2G can transfer. even if you use Shannon's formula you still get a very high value for 2G data transfer. Edge isn't better than 2G unless you want faster data transfer rate... edge can transfer up to 237kbps per 4 time slots. you need no more than 48kbps.
btw.. just as a general remark. human speech moves between... 20hz to about 3khz. 22khz/48khz is required to transfer music through your phone.
nir36 said:
voice is sampled in 44kHz at best.
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Both 2(.5/.75)G and 3G uses GSM encoding (with a very low sampling frequency); that is, the audio quality is exactly the same with the two.
galaxys said:
Edge consumes a lot less battery than 3G.
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This is particularly true when actively transferring data, and (to a much lesser degree) when just using the phone. I've measured huge (~50%) differences on contemporary handsets - see my dedicated articles if interested.
nir36 said:
3G is WAY "less healthy"
for instance, in israel, 2G broadcasts make your phone cast 0.042mW/kb
3G makes it cast 0.43mW/kb. it's like swimming in an ocean of endless EM waves.
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Click to collapse
Do you have any links on this? This is quite big a difference and I'd say, at least under "normal" circumstances, the difference shouldn't be that big.
As CDMA is somewhat more battery-friendly than TDMA (it can transfer the same info using less power), the difference is mostly because of the difference between the carrier (850/900 MHz vs. 1700+ MHz; the higher the freuency, the more power you require to traverse the same distance with the same SNR). That is, with a GSM operator operating at much higher frequencies than 900 MHz, there shouldn't be much difference.
(And, of course, a lot of other factors should also be considered: does the operator use the same radio turn to put all their aerials on etc. If, for some reason, you have a far better 3G SNR than GSM SNR, then, your handheld should use much lower transfer power.)
This is a matter of choices
Each one of us will pick a phone (and a band and a carrier) based on our own needs
In my personal usage, I need FAST INTERNET, so I chose 3G (HSDPA)
I also chose the Xperia X1 because it has a BIG battery
Now I have 3G SPEED and 1.5 days battery life with heavy usage
Menneisyys said:
Both 2(.5/.75)G and 3G uses GSM encoding (with a very low sampling frequency); that is, the audio quality is exactly the same with the two.
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That's great to hear. Well to conserve power, my choice will be to disable 3G using Communication Manager. When I do this, the 3G icon in the task bar switches to E.
Will switch to 3G only when I need to use the internet.
Perfect ! Thanks for helping me with this everyone
Menneisyys said:
Do you have any links on this? This is quite big a difference and I'd say, at least under "normal" circumstances, the difference shouldn't be that big.
As CDMA is somewhat more battery-friendly than TDMA (it can transfer the same info using less power), the difference is mostly because of the difference between the carrier (850/900 MHz vs. 1700+ MHz; the higher the freuency, the more power you require to traverse the same distance with the same SNR). That is, with a GSM operator operating at much higher frequencies than 900 MHz, there shouldn't be much difference.
(And, of course, a lot of other factors should also be considered: does the operator use the same radio turn to put all their aerials on etc. If, for some reason, you have a far better 3G SNR than GSM SNR, then, your handheld should use much lower transfer power.)
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first of all, let me correct my mistake. it's not 0.43 for 3G it's 0.23mW/kb. but that's still VERY high.
I'll try to look it up as i got this info from a friend who worked in orange. but this obviously depends on many factors other than your device. the more relays you have spread around your area, the less power your phone needs to retrieve a normal signal. they're not ALL arranged according to the hexagon method... or the Threeway method.
I'm talking about average power. the closer you are to the relay, the less power you need, but your brain is fried from the relay itself so you can't really run away from it.
FORTUNATELY, power dissipates by 1/r^2 so if you're about 60-70cm away from your phone the effect will be extremely minimal.
"Yeah well, 3G is a data transfer speed. If you're not using data, there's no reason to have 3G."
here we can also use it for video calls directly to another phone number as in not real internet
but nobody use it i think
maybe the problem is that females will spend ½hour freshning up before answering their phones jk
video calls are only different by requiring faster data transfer and much higher signal to noise ratio.. which 3G provides. again, it's not a consideratoin whether to use 3G or not. only if you need to use a video call should you switch to 3G
2G vs 3G......What about (Edge vs 3G)
Wow, some good feedback has been generated here.
Phone use:
• 3G.......is NOT worth it here unless you are video calling
Data Connection:
• 3G.......is worth it here (way faster) even though battery consumption increases nicely
Before concluding with the above, would like to clear up what Edge is:
EDGE can be considered a 3G radio technology and is part of ITU's 3G definition,[1] but is most frequently referred to as 2.75G
Based on the definition here, does anyone believe that using Edge is best when using the phone for the sake of decreasing battery consumption? I believe it should be. Any thoughts?
Actually, EDGE can't be considered as 3G techwise.. and it doesn't have the same data transfer rate as 3G provided by an HSDPA connection.
this is from wikipedia
High-Speed Downlink Packet Access (HSDPA) is a 3G (third generation) mobile telephony communications protocol in the High-Speed Packet Access (HSPA) family, which allows networks based on Universal Mobile Telecommunications System (UMTS) to have higher data transfer speeds and capacity. Current HSDPA deployments support down-link speeds of 1.8, 3.6, 7.2 and 14.4 Mbit/s. Further speed increases are available with HSPA+, which provides speeds of up to 42 Mbit/s downlink.[1]
EDGE only gets to 430kbps AT BEST. the AT BEST part NEVER comes
it's true that EDGE consumes less battery
and it's true that 3G is much faster
but it's also true that this all depends on your needs.
Orange Israel doesn't support EDGE. if they did i would be using it all the time instead of 3G when i need an internet connection.. since i don't need 1.8Mbps..
eventually, i believe there's no debate about what to use.
2G is the best way to go when you do everything but using the internet and video calls.
and then choosing between EDGE and 3G(HSDPA, UMTS.. or whatever you wanna call it) depends on how fast you want your internet connection to be while considering that EDGE consumes MUCH MUCH less battery power.
btw, if you asked me, i woldn't think twice whether you should have a 3G phone or not. having 3G support on your phone nowadays costs nothing more than having a reulgar 2G phone.. so having the option whether to use 3G or not is obviously better than not having it.
band27 said:
EDGE can be considered a 3G radio technology and is part of ITU's 3G definition,[1] but is most frequently referred to as 2.75G
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tehcnically, EDGE (which is a plain TDMA technology, as is GSM) in no way can be compared to 3G technologies, which are all CDMA.
Hello Everyone, just recieved my Tmobile bill and on a slip of paper about 1/4 of a page in size is a Notice of changes due to take effect April 5 2012
Begining April 5 there will be a limit on the data that can be used while a T mobile customer's device is connected to another providers network (off network or domestic roaming). If the roaming data limit is exceeded for a rate plan then data service will be suspended from off network roaming until the next billing cycle. This will not impact voice usage or data usage on T mobile network
Rate plans data up to 200mb new roaming allotment 5 mb
2gb 10mb
4gb 50mb
10gb 100mb
over 10gb 200mb
mobile pay per use 10mb
As i live in a rual area there is only edge data for me, and my network service constantly roams between At t and T mobile. Most of the time i use wifi, but i have the 2gb data plan, and i think my highest data usage has been in the 500 mb range (hard to tolerate edge speeds) So the way i read this policy change, I'm getting bent over hard. Could this be related to the failure of the At t + T mobile buyout, Att is having a very difficult time handling the data flow on its network right now. Other than myself not sure how this might impact many other T mobile users around the country, but it cant be good. How much data roaming really goes on between carriers? Any info and others thoughts are welcomed, thanks.
are you in the uk how does this affect the t mobile orange tie in where i can roam on to orange and orange can roam on to t mobile
SENT FROM MY TRANSFORMER and its on KRAKD
I m in USA Michigan
I noticed that Play Music was using a large amount of data. In about a week it used up just under 2 gb of data. I would say total stream time was only around 3 hours. I do have unlimited data with my t-mobile plan so I'm not too worried unless I get throttled after 5 gb or something. I was just wondering if anyone else had the same experience. I know you can regulate the quality to reduce data usage, but I still don't think high quality should use up that much.
Do you have the "highest quality" option chosen, that will increase your data usage. If you are streaming 3 hours worth of music that was not on your phone assuming that a song was around 2.5-3mb it seems possible. It also could've been downloading album art.
This is my biggest complaint with Google Music. It uses too much data regardless of whether I change the streaming bandwidth. It consistently uses more data than Spotify even on the lowest quality. I never had to worry about this when I was on Sprint but I have since switched to Straight Talk and don't want to be throttled either.
Google needs to fix this issue. It's the biggest issue keeping me from switching.
PsychDrummer said:
I noticed that Play Music was using a large amount of data. In about a week it used up just under 2 gb of data. I would say total stream time was only around 3 hours. I do have unlimited data with my t-mobile plan so I'm not too worried unless I get throttled after 5 gb or something. I was just wondering if anyone else had the same experience. I know you can regulate the quality to reduce data usage, but I still don't think high quality should use up that much.
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lol, seriously? how many mb is each song that you are listening? and then you chose high quality. 2gb is very normal. throw in a little more into your data plan and you can have completely unlimited high speed data, without throttling. its not an issue here, i have the completely unlimited high speed data with tmo, no throttling. now data usage isnt a factor, and i completely enjoy my device because of it.
---------- Post added at 05:17 PM ---------- Previous post was at 05:13 PM ----------
laestrella said:
This is my biggest complaint with Google Music. It uses too much data regardless of whether I change the streaming bandwidth. It consistently uses more data than Spotify even on the lowest quality. I never had to worry about this when I was on Sprint but I have since switched to Straight Talk and don't want to be throttled either.
Google needs to fix this issue. It's the biggest issue keeping me from switching.
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its not an issue. google does not assume that you have data limiting you. to fix the issue, get a plan with more data.
simms22 said:
lol, seriously? how many mb is each song that you are listening? and then you chose high quality. 2gb is very normal. throw in a little more into your data plan and you can have completely unlimited high speed data, without throttling. its not an issue here, i have the completely unlimited high speed data with tmo, no throttling. now data usage isnt a factor, and i completely enjoy my device because of it.
---------- Post added at 05:17 PM ---------- Previous post was at 05:13 PM ----------
its not an issue. google does not assume that you have data limiting you. to fix the issue, get a plan with more data.
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I do have the completely unlimited plan, but I heard that apparently you still start to get throttled after 5 gbs. Maybe not to 2G, but just a bit slower. Could be true could not, since you haven't experienced it. I did think about the size of each song, but I thought since streaming is different from actually downloading it, it wouldn't have to use up 3 mbs or whatever the size is per song. I know Pandora doesn't use nearly as much. Also, I think it might be because I skip songs often. So Play music loads up the song before I skip to the next one.
PsychDrummer said:
I do have the completely unlimited plan, but I heard that apparently you still start to get throttled after 5 gbs. Maybe not to 2G, but just a bit slower. Could be true could not, since you haven't experienced it. I did think about the size of each song, but I thought since streaming is different from actually downloading it, it wouldn't have to use up 3 mbs or whatever the size is per song. I know Pandora doesn't use nearly as much. Also, I think it might be because I skip songs often. So Play music loads up the song before I skip to the next one.
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all tmobile data plans are "unlimited", meaning a certain amount if high speed data then being throttled to edge data speeds. well, all plans but one, and it has completely unlimited high speed data($70 everything completely unlimited). i use on average 25-45gb a month, some use much more.
i spend a day or two of my week listening to music, usually either using google play or pandora. i easily use on average between 1.5-2.5gb with google play music after 2-4 hours, and about the same with pandora, on high quality both. also, in play music settings, there is an option to cache music you stream(until you empty the cache). you might have that enabled. itll download and save to your device this way also(as opposed to saving to device).
simms22 said:
all tmobile data plans are "unlimited", meaning a certain amount if high speed data then being throttled to edge data speeds. well, all plans but one, and it has completely unlimited high speed data($70 everything completely unlimited). i use on average 25-45gb a month, some use much more.
i spend a day or two of my week listening to music, usually either using google play or pandora. i easily use on average between 1.5-2.5gb with google play music after 2-4 hours, and about the same with pandora, on high quality both. also, in play music settings, there is an option to cache music you stream(until you empty the cache). you might have that enabled. itll download and save to your device this way also(as opposed to saving to device).
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Gotcha, yeah I know how it works. I do have the $70 one. Well, I have a family plan, but I pay the $20 extra for the true unlimited that now comes with the 2.5 gbs of tethering. That's good to know that they don't throttle. 45 gbs is pretty insane haha.
simms22 said:
all tmobile data plans are "unlimited", meaning a certain amount if high speed data then being throttled to edge data speeds. well, all plans but one, and it has completely unlimited high speed data($70 everything completely unlimited). i use on average 25-45gb a month, some use much more.
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Click to collapse
Is this your only means of internet access? That is quite a lot and would make me think t-mobile would shut you down
mistahseller said:
Is this your only means of internet access? That is quite a lot and would make me think t-mobile would shut you down
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its a lot, yea. but not that much that use 100+ of gigabytes, lol. it is my only internet access,plus i use the device much. and updating 2gb size apps often! i believe the usage number that they used to post on their website(before their recent site change) if you had the completely unlimited was like 99XXgb allowed. anyways, the plan is for completely unlimited high speed data, completely unlimited is a lot more than 25-45gb
If I did that the At&t police in their orange and blue uniforms would find me.
Sent from my Nexus 5
Hi,
I though perhaps an app was causing this issue but I can't seem to pin down an app that might have been.
I believe this *may* have been since the One UI5 update, but my phone is extremely unreliable now, it's so slow, laggy, battery life drains quicker, apps killing them selves, all around it's a bit like a battlefield using my phone.
It's 8:53, so far since my phone was off charges 2hr 5mins ago, I'm down the 84% battery and Facebook has taken 42, Google Play 0.5 and O2 Priority 0.2 , on average MS Edge takes 4.1%, Google Play 43.6% and Facebook 2.8%
Not sure if those figures are unusual?
Any ideas what could be causing this or if it's a known bug? cheers.
Install gsam battery monitor and enable grand permission according to the instructions in the application. Then wait a few hours and analyze the graphs and detailed battery consumption data by apk and services.
Seems like I need route to distinguish individual apps
This is a simple check that could tell you something.
Code:
$ top
Do you have a lot of stuff stored in that 128GB?
Probably not related but another device had some serious thrashing trying to list large directories.
The implementation of sdcard has changed a number of times.
(On another device I just made sdcard a straight mount. End of problem.)
Weird even he has many things stored...dont forget that this phone has like Exynos 2200 Octo-Core 2.9 GHz 8GB of ram...
did u tryed to factory reset???
u did something that could cause your phone slow?
I've got 100 out of 128gb free and it's got 8gb ram