I just updated to trigger 2.1 and now my data thing goes between 3G and H. What is H and what's the difference between them?
Sent from my SGH-T959 using XDA App
http://www.differencebetween.net/technology/difference-between-3g-and-hsdpa/
alecjake said:
I just updated to trigger 2.1 and now my data thing goes between 3G and H. What is H and what's the difference between them?
Sent from my SGH-T959 using XDA App
Click to expand...
Click to collapse
http://en.wikipedia.org/wiki/Umts - when the icon shows 3G this is what it shows
http://en.wikipedia.org/wiki/HSPDA - when the icon shows H
HSPDA is able to provide faster speeds, but I believe it's highly dependent on how strong your signal is
Not sure myself, but if you're on Tmobile or ATT it pribably stands for HSDPA. 3G would mean WCDMA I believe.
Sent from my Vibrant using XDA App, Bionix-v 1.21
Long story short... it depends on how the ROM has been programmed to display what protocol your phone is using for data traffic.
3G just means regular UMTS 3G data
H means that it is is using HSPA, a faster protocol for UMTS 3G.
It doesn't mean that you're taking advantage of the faster speeds... that is dependent upon a slew of other factors.
Just to clear some things up. 3G is an all encompassing term, that INCLUDES the following technologies:
UMTS
HS(D/U)PA(+)
W-CDMA
EV-DO Rev 0/A/B
LTE
WiMax
As noted in the post immediately above me, the symbol it shows, depends on how the rom was customised to show each icon for the corresponding protocol.
If you don't believe me, that's cool, but go look at the ITU declinations on what is and is not 3g. There is no 4G CDMA technology. Pure CDMA is dead in the long run. All the current 3G GSM technologies, use the WCDMA or OFDMA air interface.
OFDM is not 3G
Tarzanman said:
OFDM is not 3G
Click to expand...
Click to collapse
This is false. WiMax uses OFDM and LTE uses OFDMA (the same, but for multi-user as opposed to single). WiMax as 802.16e is NOT 4g. Neither is anything currently available and anything being deployed in the next 2-3 years.
I didn't say it was 4G. I said that OFDM was not 3G.
It isn't. Taking the broad view, its pretty clear to me that code div mult access is what differentiates 3G from its predecessors.
With 4G it will be orthogonal frequency
Here's a mathematical formula that pertains to all Vibrant ROMS that use an H and/or 3G
3G = H
The answer is, there is no difference except for the way they look. Both are really only using 3g.
The phone switches from hsdpa to umts back and forth all day according to how you use the internet. It automatically switches from hsdpa to umts when it is not browsing the web. That is-- if you live in an area with hsdpa. In which case it would stay on umts all day. Which would make your battery pretty happy. My battery hates hsdpa
Sent from my SGH-T959 using XDA app. If I helped, hit the thanks button!
treyvaporizer said:
The phone switches from hsdpa to umts back and forth all day according to how you use the internet. It automatically switches from hsdpa to umts when it is not browsing the web. That is-- if you live in an area with hsdpa. In which case it would stay on umts all day. Which would make your battery pretty happy. My battery hates hsdpa
Sent from my SGH-T959 using XDA app. If I helped, hit the thanks button!
Click to expand...
Click to collapse
This is false. Your phone jumps on the preferred network. Usually, unless you have specified, it sits on the fastest preferred network available. As such, battery consumption improves when you disable 3g (which is HSPA AND UMTS).
Tarzanman said:
I didn't say it was 4G. I said that OFDM was not 3G.
It isn't. Taking the broad view, its pretty clear to me that code div mult access is what differentiates 3G from its predecessors.
With 4G it will be orthogonal frequency
Click to expand...
Click to collapse
If it's not 3g then what is it? OFDM is used on both current 3g and future 4g (LTE-Advanced) systems.
Paging Dr B said:
Here's a mathematical formula that pertains to all Vibrant ROMS that use an H and/or 3G
3G = H
The answer is, there is no difference except for the way they look. Both are really only using 3g.
Click to expand...
Click to collapse
hi there,
I believe what you say and if it is just a matter in which the ROM is programmed, why does my stupid S3 still switches from H+ to 3g?
I dont know and I cant tell if either of the two is faster than the other, but it is annyoing the constant switching
Thanks
Davide
banzayworld said:
hi there,
I believe what you say and if it is just a matter in which the ROM is programmed, why does my stupid S3 still switches from H+ to 3g?
I dont know and I cant tell if either of the two is faster than the other, but it is annyoing the constant switching
Thanks
Davide
Click to expand...
Click to collapse
H+ = HSPA+ = 3g. There are different names for the different 3g evolutions and technologies, but they are still 3g. It keeps hopping between the networks because you're unfortunately in an area with bad coverage for the faster network.
Related
I apologize for this thread as it might not be in the correct area, but i figured most people log into the dev section so this might get answered quicker...
I have 2 questions so lets start with the first:
1) For some reason I'm not getting HSPDA network working on my phone. the best speed I've posted is about 3.2Mbs, which is not HSPDA speeds, or at least not as fast as it should be. It also says that i'm on 3G as opposed to H...is there a reason for this. Keep in mind I live in LA and they have one of the strongest networks for HSPDA (at least according to the rep I talked to).
2) Is it possible for us to get HSPDA+ speeds with a radio update. I don't know too much about the radio but it would seem to me like that is what it would take to get the HSPDA+ working as I'm assuming that it is the radio that determins your speed and not the hardware...though I could be wrong.
Just a thought, and a response would be awesome.
Thanks in advance guys and gals!
I would answer if this were posted in the correct forum.
acis said:
I would answer if this were posted in the correct forum.
Click to expand...
Click to collapse
where would you like me to post this then...not sure where to post...general q&a?
EDIT: Now posted in gernal Q&A....
settings > about phone > status
what does it say the mobile network type is? the status bar will still display '3G' if you're on HSDPA unless you're on froyo or a custom rom.
If you go to menu settings, about phone, status, it will tell you if you are connected to hsdpa... But it won't show up in the status bar...
The more ppl on the network the slower the speeds will be... I can connect to an hspa tower about 30 mins away but I don't get the speeds... my phone is actually slower now with the new tower...
Sent from my SGH-T959 using XDA App
solarpanel said:
settings > about phone > status
what does it say the mobile network type is? the status bar will still display '3G' if you're on HSDPA unless you're on froyo or a custom rom.
Click to expand...
Click to collapse
it says HSDPA but it doesn't feel like that, i figgured it would just fly, but it's not as fast as I thought it should be. Also the speed test is only giving me like 3.2Mbs as opposed to my friend with with the behold II who is getting like 5...
Also, anyone got any info on the second question by chance?
i haven't done enough research on the vibrant's HSPA+ capabilities to answer
solarpanel said:
i haven't done enough research on the vibrant's HSPA+ capabilities to answer
Click to expand...
Click to collapse
it would seem to me that the radio would do it...i mean that is what the radio is, it tells your phone what signal to use...right...can any devs help us out?
zbt1985 said:
1) For some reason I'm not getting HSPDA network working on my phone. the best speed I've posted is about 3.2Mbs, which is not HSPDA speeds, or at least not as fast as it should be. It also says that i'm on 3G as opposed to H...is there a reason for this. Keep in mind I live in LA and they have one of the strongest networks for HSPDA (at least according to the rep I talked to).
2) Is it possible for us to get HSPDA+ speeds with a radio update. I don't know too much about the radio but it would seem to me like that is what it would take to get the HSPDA+ working as I'm assuming that it is the radio that determins your speed and not the hardware...though I could be wrong.
Click to expand...
Click to collapse
1)That is HSDPA. Normal 3G is UMTS 384kbps, HSDPA 3.5G Theoretical Maximum of 7.2 (also available in 3.5, 7.2, 14.4, etc) getting down 3.2mbps is considered very quick, connection really tops out at a max of ~5mbps, but would require you to be near a tower with a fast backhaul, and not many other people on the network at the same time. Also keep in mind speedtests are not completely accurate as they have cached data they are sending to you.
2) There is no such thing as HSDPA+, there is HSDPA in a bunch of flavors, and HSPA+. and no, our radio does not support HSPA+ 20mbps. but in field tests it was only marginally faster than HSDPA 7.2mbps anyway. the radio is a piece of hardware, there is firmware they can tweak to try and get more potential out of it, but its just more of the potential of the hardware, not extra speed.
amigoingcrazzy said:
1)That is HSDPA. Normal 3G is UMTS 384kbps, HSDPA 3.5G Theoretical Maximum of 7.2 (also available in 3.5, 7.2, 14.4, etc) getting down 3.2mbps is considered very quick, connection really tops out at a max of ~5mbps, but would require you to be near a tower with a fast backhaul, and not many other people on the network at the same time. Also keep in mind speedtests are not completely accurate as they have cached data they are sending to you.
2) There is no such thing as HSDPA+, there is HSDPA in a bunch of flavors, and HSPA+. and no, our radio does not support HSPA+ 20mbps. but in field tests it was only marginally faster than HSDPA 7.2mbps anyway. the radio is a piece of hardware, there is firmware they can tweak to try and get more potential out of it, but its just more of the potential of the hardware, not extra speed.
Click to expand...
Click to collapse
thanks for the info, glad to know that I am at normal speeds.
Also thanks for answering on if we were able to get HSPA+ on our phones!
I believe the vibrant can get speeds up to 7.2 down. Personally, I get ~5-6mbps at my house (Seattle, WA) and the most I've hit is ~6.5.
If you flashed the Update, your not going to get a Speed increase.
After Testing & Testing me & barak both don't get over 3.5MB & with the Old Modem.bin we both get over 6MB downloads..
Another thing we noticed with the new Modem.bin is it never switches to the H network, just stays on 3G / E..
With the old Modem.bin H / 3G /E Connects
eugene373 said:
If you flashed the Update, your not going to get a Speed increase.
After Testing & Testing me & barak both don't get over 3.5MB & with the Old Modem.bin we both get over 6MB downloads..
Another thing we noticed with the new Modem.bin is it never switches to the H network, just stays on 3G / E..
With the old Modem.bin H / 3G /E Connects
Click to expand...
Click to collapse
so the leaked update actually downgraded the phone's ability for better speeds? wtf
eugene373 said:
If you flashed the Update, your not going to get a Speed increase.
After Testing & Testing me & barak both don't get over 3.5MB & with the Old Modem.bin we both get over 6MB downloads..
Another thing we noticed with the new Modem.bin is it never switches to the H network, just stays on 3G / E..
With the old Modem.bin H / 3G /E Connects
Click to expand...
Click to collapse
3.5 mbps is on the H network. the normal 3g network would be 0.3mbps....
However I'm not disputing that the H network could have been crippled/slower after a modem update. You are still on HDSPA, just something has been messed up about it and its only half as fast as normal for you.
I'm on hsdpa and I'm only getting .3mbps
amigoingcrazzy said:
1)That is HSDPA. Normal 3G is UMTS 384kbps, HSDPA 3.5G Theoretical Maximum of 7.2 (also available in 3.5, 7.2, 14.4, etc) getting down 3.2mbps is considered very quick, connection really tops out at a max of ~5mbps, but would require you to be near a tower with a fast backhaul, and not many other people on the network at the same time. Also keep in mind speedtests are not completely accurate as they have cached data they are sending to you.
2) There is no such thing as HSDPA+, there is HSDPA in a bunch of flavors, and HSPA+. and no, our radio does not support HSPA+ 20mbps. but in field tests it was only marginally faster than HSDPA 7.2mbps anyway. the radio is a piece of hardware, there is firmware they can tweak to try and get more potential out of it, but its just more of the potential of the hardware, not extra speed.
Click to expand...
Click to collapse
My phone shows that I'm on UMTS and I'm getting 5mbps dl speeds. Occasionally I'll be on HSDPA but the speeds stay about the same.
UMTS is 3G, HSDPA is an improvement to the UMTS protocol.
So yes, all HSDPA/HSPA is UMTS, not all UMTS is of the HSDPA/HSPA.
UMTS (vanilla) 384 kbps
UMTS (HSDPA 1.8/3.5/7.2/14.4) 1.8/3.5/7.2/14.4mbps
UMTS (HSUPA) up to 5.76mbps Enhanced uplink portions of the data connection
UMTS (HSPA+) up to 56 Mbit/s on the downlink and 22 Mbit/s on the uplink
rizzxx7 said:
I'm on hsdpa and I'm only getting .3mbps
Click to expand...
Click to collapse
Theoretical Maximums, you can get UP TO that number, anywhere between 0 and that number is what reality is.
eugene373 said:
If you flashed the Update, your not going to get a Speed increase.
After Testing & Testing me & barak both don't get over 3.5MB & with the Old Modem.bin we both get over 6MB downloads..
Another thing we noticed with the new Modem.bin is it never switches to the H network, just stays on 3G / E..
With the old Modem.bin H / 3G /E Connects
Click to expand...
Click to collapse
Sounds like an obvious problem, but not sure what that could be. Also, 3.5MB is not the same as 3.5Mb. 3.5MB/s = 28megabits. 3.5Mb/s = .43MB/s.
amigoingcrazzy said:
2) There is no such thing as HSDPA+, there is HSDPA in a bunch of flavors, and HSPA+. and no, our radio does not support HSPA+ 20mbps. but in field tests it was only marginally faster than HSDPA 7.2mbps anyway. the radio is a piece of hardware, there is firmware they can tweak to try and get more potential out of it, but its just more of the potential of the hardware, not extra speed.
Click to expand...
Click to collapse
While I am mostly a fan of your answer (it is pretty much spot on), I do have to make you aware of the acronyms and their meanings.
HSDPA = High Speed Downlink Packet Access
HSUPA = High Speed Uplink Packet Access
HSPA = High Speed Packet Access (this implies that the network uses BOTH HSUPA and HSDPA)
HSDPA+, HSPA+ = Evolved HS(D)PA
Just FYI.
richan90 said:
My phone shows that I'm on UMTS and I'm getting 5mbps dl speeds. Occasionally I'll be on HSDPA but the speeds stay about the same.
Click to expand...
Click to collapse
Exactly what I get...
Does anyone think or know why or why not we can flash the radio from the G2 to work on the vibrant to get the HSPA+ network connections. or is this a hardware thing? im not a dev but wouldnt mind learing so i can contribute too.
it is a hardware thing. the vibrant can get hspa connections but not hspa+. hspa maxes out at 7.2Mbits/s though, so that's still pretty good.
How would we be able to get hspa working? I think my touch pro2 was on hspa. I always had the H logo in the tool bar.
Sent from my SGH-T959 using XDA App
This same question has passed my mind as well. More often then not I notice in the phone status that the signal is UTMS, on the rare occasion is may say hsdpa. So i wouldn't be surprised if in the radio settings, utms is the preferred signal type.
we already have hspa. hspa+ is what the g2 has. hspa is just 3g...
From past experience with all of my previous smart phones the radio firmware upgrade is hardware specific.....So a Samsung radio will not work with HTC(G2) firmware.
for t-mobile, when you're on HSPA or UMTS, it just uses the 3G logo on the notification bar.
you can check at settings->about phone -> status to see what mobile network type you are on. mine says HSDPA right now, but when i'm at home, it usually says HSPA.
when they update your cell site with the HSPA+ cell, you will probably get an increase in speed because they will probably upgrade the internet connection to the cell to support HSPA+ speeds which means you get up to 7.2Mb/s. I think someone said earlier that most 3G sites only have two T1 lines as the backhaul, meaning you will probably get max 1.5Mb/s in a speed test.
Hardware thing. MIP
HSPA 7.2 is good enough for me and when HSPA+ rolls out in my area I ought to get closer to that theoretical speed more often. I've seen speeds like 5.9 Mbps on Speedtest.net when I'm near a regular HSPA tower.
I do wish we could mod the icon to display an "H" on HSPA connections like the G2 (G2 shows an "H" for regular HSPA as well as HSPA+). I remember running Klick Hero on my G1 almost a year ago, and getting the H icon from time to time on that old thing!
You can confirm you are on HSPA with the Mobile Signal Widget.
Itll show h on 2.2
Sent from my SGH-T959 using XDA App
thenewak said:
Does anyone think or know why or why not we can flash the radio from the G2 to work on the vibrant to get the HSPA+ network connections. or is this a hardware thing? im not a dev but wouldnt mind learing so i can contribute too.
Click to expand...
Click to collapse
The reason you cannot flash the G2 radio to get HSPA+ on the Vibrant is because the Vibrant DOES NOT HAVE A HSPA+ RADIO. Flashing the radio/modem software onto the Vibrant will not help and will probably damage your handset.
Adding software to the phone to use hardware it does not physically have is pointless.
Dan_Brutal said:
How would we be able to get hspa working? I think my touch pro2 was on hspa. I always had the H logo in the tool bar.
Sent from my SGH-T959 using XDA App
Click to expand...
Click to collapse
You don't do anything to "get HSPA working", because it already works. If the cell site your handset is connected to is HSPA, then that is what your handset will connect with.
Just because the icon in the notification bar says "3G", this does not mean that you are not connected to a HS(D)PA network. Check "Settings > About phone > Status > Mobile network type" to check which type of network you are connected to. Mine currently says "HSDPA", but I have a "3G" icon in the notification bar.
Does anybody think its possible to take a baseband chip from the Epic 4g, and solder it into the Vibrant to get it to work with Sprint's WiMax network?
Only way I see that happening is of you mod the phones hardware then mod the software drivers to make it work...it can be done but is a huge pain in the butt....I use to mod our sat phones and radios over in iraq to bump signal for direct calls...the hardware side is easy little patch work needed....software side to make it work is where the work would really come in...mod for the kern...then drivers...then fixing all dependency issues for the radio...then last part is the battery issue...you would have to find a radio that wouldn't eat like it was at an all you can eat dollar dinner....but if you are into hardcore mods keep everyone posted...lol
Yea sent from this mobile thinggy =p
kingkurry said:
Does anybody think its possible to take a baseband chip from the Epic 4g, and solder it into the Vibrant to get it to work with Sprint's WiMax network?
Click to expand...
Click to collapse
Not without a ton of programing knowledge.
i would venture to guess no, because more than the baseband chip would probably need to be included. you'd probably some of the receivers as well. At the very least, the chip marked wimax power amplifier.. http://www.chipworks.com/samsung-epic-4g.aspx
why would you want to do that anyways? the phone isn't designed to support two baseband chips so you probably wouldn't have any way of having both tmo and wimax. might as well just buy both phones
yincrash said:
it is a hardware thing. the vibrant can get hspa connections but not hspa+. hspa maxes out at 7.2Mbits/s though, so that's still pretty good.
Click to expand...
Click to collapse
I've gotten up to 6mb/s pretty consistently
yincrash said:
it is a hardware thing. the vibrant can get hspa connections but not hspa+. hspa maxes out at 7.2Mbits/s though, so that's still pretty good.
Click to expand...
Click to collapse
i havent seen any H on mine at all just 3G or EDGE anything i can do to upgrade that performance?
thenewak said:
i havent seen any H on mine at all just 3G or EDGE anything i can do to upgrade that performance?
Click to expand...
Click to collapse
The shipped ROM on the Vibrant does not display an "H" for HS(D)PA connections ever. It will only show "G" for GPRS, "E" for EDGE and "3G" for UMTS, HSDPA and HSPA.
Try phono which shows real time signal. I was able to find the right spot for signal at work.
Sent from my SGH-T959 using XDA App
Hey, I have an USA T-Mobile Vibrant.
It is rooted and running the Vibrant edition of Darky's 9.3 Final ROM.
I am also using the latest overstock kernal and the honeycomb 2.0 theme from the I9000 forums.
Enough background info. This isn't really a problem as much as my curiosity.
My phone almost constantly is switching back and forth between 3G (UMTS) and H (HSDPA) on my data connection.
It doesn't seem to affect battery life or service too much (though H might be faster), so I'm not worried; but does anyone know what the deal is with this?
Thanks ahead of time!!!
Sent from my Vibrant using XDA App
Mine has been doing this lately as well. It's only been happening since I installed my current ROM (Trigger 2.7).
Noticed this just now as well...might have something to do with the mods to show H or 3G.
I wonder if it has anything to do with signal strength. I know that shouldn't make a difference but I can't think of any other reason.
Sdobron said:
Noticed this just now as well...might have something to do with the mods to show H or 3G.
Click to expand...
Click to collapse
I would agree, but I went to my settings/ phone info/ signal page and the reason it was changing was because it was physically switching between UMTS and HSDPA.
Why? I have no idea.
I do live in a T-Mobile 4G enabled area, though I am not on their so called "4G plan".
I did notice that it did not have this switching problem on Bionix Frost-u2.
So, if anyone has some insight, please help us all understand
CrazyCharlie said:
I wonder if it has anything to do with signal strength. I know that shouldn't make a difference but I can't think of any other reason.
Click to expand...
Click to collapse
I was just watching my signal strength change and it doesn't seemed tied to the change from 3G to H.
For example, it would be around 67dBm and be on UMTS. Raise to up to around 75dBm and be on UMTS. Then it would switch to HSDPA and still be at 75dBm or sometimes lower down to 69-72dBm and still be on HSDPA.
So with that type of cross-over stats, I would be skeptical of that solution.
HSDPA is a temporary data link. If it was on continously the phone would have very poor battery life.
When network server has a data packet for your phone it 'pages' up your HSDPA capability. Your phone can also request HSPA to initiate a data transmission.
The HSPA paging process is similar to receiving and initiating a voice call.
If no more packets have qued at their server or received from your phone after some period of time it will revert to normal 3G battery saver cycling. It has to be re-paged up to reinitiate HSPA data link. The wake up HSPA function does add some initial delay.
So is there a way to force it to stay on HSPA while tethered, for example? (Or always)
A small observation i have made thus far with running code's Kang
There seems to be alot of bouncing between 3G and H+. Im not sure what the implications are in terms of bat drain or issues, however just somthing i have observed that i do not running a similar OS on my Desire HD.
My area we are not yet H+ however i hold steady at h+ most all the time.
Drew
All 4G phones have H+ constant unless they fall on EDGE
Sent from my SAMSUNG-SGH-I777 using xda premium
ngocdao said:
All 4G phones have H+ constant unless they fall on EDGE
Sent from my SAMSUNG-SGH-I777 using xda premium
Click to expand...
Click to collapse
I understand this, however its bouncing between H+ and 3G constandly like once ever other min, which seems odd
Drew
drewdatrip said:
I understand this, however its bouncing between H+ and 3G constandly like once ever other min, which seems odd
Drew
Click to expand...
Click to collapse
I know devices typically switch if something is actively going on (an active data session). Are your data transmission arrows lighting up when showing H and nothing when showing 3G? If so, I think this is typical.
ngocdao said:
All 4G phones have H+ constant unless they fall on EDGE
Sent from my SAMSUNG-SGH-I777 using xda premium
Click to expand...
Click to collapse
Wrong. Phones only use HSPA when transferring data, they idle in vanilla UMTS.
AT&T mangles their frameworks to report everything as H+ even when it's not actually in HSDPA+ mode.
CM7 is just reporting the truth that AT&T's mangled framework hides from you.
Entropy512 said:
Wrong. Phones only use HSPA when transferring data, they idle in vanilla UMTS.
AT&T mangles their frameworks to report everything as H+ even when it's not actually in HSDPA+ mode.
CM7 is just reporting the truth that AT&T's mangled framework hides from you.
Click to expand...
Click to collapse
Its bouncing both in and outside of data consumption. I dont find this to be the case Running CM7 or MIUI on my Desire HD
Just an observation
Drew
Different RIL.
And our RIL might have the same minor issue that the Infuse RIL did in which HSPA+ was reported as only UMTS - so if you were in a non-+ HSPA mode it would be H, if you were in 3G it would be 3G, if you were in HSPA+ it would be 3G. This was a display error... Do you notice any significant differences in actual data speed performance between CM7 and stock firmware?
(Actually, you could still see slow data if the CM7 tree uses older TCP buffer size values.)
I am wondering if there is way for me to shut down the 4G service on my amaze and have 3G instead. I know on some android phones it is possible. signal drops on 4G is really pissing me off
vikramdhani said:
I am wondering if there is way for me to shut down the 4G service on my amaze and have 3G instead. I know on some android phones it is possible. signal drops on 4G is really pissing me off
Click to expand...
Click to collapse
if it drops 4g it should automatically switch to 3g, if its not, its either cause you have no data reception at all at the time, or you have a screwed up phone, probably not the latter. There are some toggle apps you can look into on the market though, elixir is really good, and beautiful widgets has a 4g toggle i believe as well... hope this helps ya...
I'm using LTE switch. cuts it down too 4G
https://market.android.com/details?id=com.geoffreybuttercrumbs.lteswitch&feature=search_result
GSM Only (2g)
GSM Auto (4g)
elixir looks nice, I'm going to play around with it.
TheHeffNerr said:
I'm using LTE switch. cuts it down too 4G
https://market.android.com/details?id=com.geoffreybuttercrumbs.lteswitch&feature=search_result
GSM Only (2g)
GSM Auto (4g)
elixir looks nice, I'm going to play around with it.
Click to expand...
Click to collapse
the LTE switch works for HSPA+?
It's kicking my phone down too and showing 2G and after running a speed test it's like 200kbps. I haven't really tried to kick it over to 3G.
vikramdhani said:
I am wondering if there is way for me to shut down the 4G service on my amaze and have 3G instead. I know on some android phones it is possible. signal drops on 4G is really pissing me off
Click to expand...
Click to collapse
Your choices are 2G or 3G/4G. The 3G and 4G signals are essentially the same, both WCDMA. This is why you don't see a 3G icon, it is all wrapped into the 4G icon.
If you want to stop 4G data, you can download the widget from the market or go to Settings > Wireless & Networks >Mobile Networks > and change Network Mode to GSM only.
thephunk said:
Your choices are 2G or 3G/4G. The 3G and 4G signals are essentially the same, both WCDMA. This is why you don't see a 3G icon, it is all wrapped into the 4G icon.
If you want to stop 4G data, you can download the widget from the market or go to Settings > Wireless & Networks >Mobile Networks > and change Network Mode to GSM only.
Click to expand...
Click to collapse
This.
4G and 3G use the same "part" of the network.
T-Mobile's network is not like Verizon or Sprint, where a completely different communication channel is being used.
The functionality is quite similar to WiFi...With 802.11 B and G, they use they same frequencies and talk on the same channels. However, 802.11 B tops out at 10Mbps, while G is capable of hitting (theoretically) 54mbps. The only caveat being that both the access point and the client, must support the updated protocol.
So yes, although it's doesn't seem logical, your choice is either 4G (HSDPA and HSDPA+) or 2G (EDGE).
If 3 and 4g are the same on Tmobile's network, then when you're on 4G, does it use any more battery than it does on 3G?
My user experience says yes. The battery hogging is on par with the EVO and Sprint's wimax. There was a switch to revert to 3G, and all sprint users that I knew never used 4G because it drained the battery in a matter of a few hours.
On an AT&T iPhone 3G, the battery never drained this quickly.
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vikramdhani said:
I am wondering if there is way for me to shut down the 4G service on my amaze and have 3G instead. I know on some android phones it is possible. signal drops on 4G is really pissing me off
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As long as i am not leaving the 3G or 4G area, i set mine on wcdma only. Problem solved. When i travel into 2g areas, i put it back on auto.
lamenramen said:
If 3 and 4g are the same on Tmobile's network, then when you're on 4G, does it use any more battery than it does on 3G?
My user experience says yes. The battery hogging is on par with the EVO and Sprint's wimax. There was a switch to revert to 3G, and all sprint users that I knew never used 4G because it drained the battery in a matter of a few hours.
On an AT&T iPhone 3G, the battery never drained this quickly.
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Click to collapse
Someone correct me if I'm wrong.. But our 3g and 4g has no dependence on our radio. It's dependent on the signal we receive. So to answer your question, no power is saved because 3g and 4g use the same part of the phone. Only on 2g because a lower power radio is receiving the data signal
Over 10000!!! You bet I am.