Database Develop

3g vs h thing

I have a rom that has the option to use
3g or h. I believe h stands for hspda?
Anyway I was just trying to get your opinion on which is better. And please tell me the pro/con of it. So far I only know that h is faster in data but use more battery…
Sent from my phone

bluemoon1221 said:
I have a rom that has the option to use
3g or h. I believe h stands for hspda?
Anyway I was just trying to get your opinion on which is better. And please tell me the pro/con of it. So far I only know that h is faster in data but use more battery…
Sent from my phone
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H stands for HSUPA, or High-Speed Uplink Packet Access. There isn't a noticeable difference in battery between 3G and HSUPA. HSUPA is definitely worth it in terms of speed vs battery.

ytt3r said:
H stands for HSUPA, or High-Speed Uplink Packet Access. There isn't a noticeable difference in battery between 3G and HSUPA. HSUPA is definitely worth it in terms of speed vs battery.
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This is true if HSPA is supported in your area. However for ppl like me, 3G has a very reliable signal in my area and I can get DL speeds almost equal to those of HSPA here and using 3G consumes less battery as well. So thats why I went with 3G.

Umts is 3g. Hsdpa is 3.5g for download speeds. Hsupa is 3.5g for upload speeds.
Att does not allow any of its phones to display anything but edge and 3g indicators by the signal bars. The 3g can actually means umts, hsdpa, or hsupa (on phones that support it). The i9000 based roms display the indicator more correctly. 3g means umts only. 'H' means hsdpa or hsupa. This is how the symbols are displayed on every other network.

I was using 3g for awhile and I decided to try h and it didn't seemed to have a difference on battery. So I'm just using h now

H IS 3G!!!

MikeyMike01 said:
H IS 3G!!!
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Think you'll need to make this bigger because I'm sure will see another thread in a few hours asking the SAME thing!

MikeyMike01 said:
H IS 3G!!!
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Good stuff right there!

Ah, thats helpful I was confused and thought that H was worse than 3g. Thanks

balancing both sides
MikeyMike01 said:
H IS 3G!!!
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lol.. TRUE, but mathematically balancing the equation,
H = 3g + HSUPA

rickysa2000 said:
lol.. TRUE, but mathematically balancing the equation,
H = 3g + HSUPA
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H = 3g + (hsdpa and/or hsupa)

k2snowboards88 said:
H = 3g + (hsdpa and/or hsupa)
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uhm.. even with HSDPA enabled and HSUPA disabled, the phone shows 3g!
So, not true!

rickysa2000 said:
uhm.. even with HSDPA enabled and HSUPA disabled, the phone shows 3g!
So, not true!
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Att bars manufacturers from shipping phones that display the h icon no matter what. On the roms that actually display the h icon, it works the way I described in my last post.

k2snowboards88 said:
H = 3g + (hsdpa and/or hsupa)
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k2snowboards88 said:
Att bars manufacturers from shipping phones that display the h icon no matter what. On the roms that actually display the h icon, it works the way I described in my last post.
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this and this
i really have a hard time about the confusion of that little letter....it actually doesnt mean anything...its an icon that displays that you have DATA....leave it at that

So I should just use 3g??
H is 3g???
I don't get what y'all are talking about..
Sent from my phone

bluemoon1221 said:
So I should just use 3g??
H is 3g???
I don't get what y'all are talking about..
Sent from my phone
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IT DOESNT MATTER
stop worrying about it and flash a rom you like

H = 4g???

Is hspda 3.5 g which companies say its 4g?
So does that mean that my captivate is getting 4g if I flashed a gt. I9000 rom?
Sent from my phone

Close but not really. You will have faster 3g where available but it is not actually 4g

i7777 said:
HSUPA and you
Currently only i9000 modems will enable HSUPA which is uploading at > ~300 kbps. All modems have HSDPA enabled. As posted below, while HSUPA primarily affects upload speeds, it has a secondary effect of faster downloads and lower latency as well.
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Thats from the Modem Thread

mcord11758 said:
Close but not really. You will have faster 3g where available but it is not actually 4g
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So 3g can be faster than h depending on the signal?
Sent from my phone

H should be faster then 3g.

nope captivate is a 3g phone even u change the rom its wont become 4g.

kapitanken said:
nope captivate is a 3g phone even u change the rom its wont become 4g.
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By wireless companies only bumping up to HSPA+ and calling it "4g" the captivate is capable of "4g".

[Q] How does the Streak know '3G' from '4G' ?

So with T-Mobile's current 4G devices, G2 and myTouch 4G, they have signal indicators of 'G', 'E', and 'H'. Which indicate GPRS, EDGE, and HSPA. The 'H' has always indicated a 3G OR a 4G connection since it can't distinguish between HSPA and HSPA+
Since 4G is the same connection as the 3G one just bumped up with faster speeds, how could it possibly create a distinction between the two? The Streak clearly fluctuates between a 3G and 4G signal indicator at times but I don't see how this could work without it constantly doing a speed test.
Does anyone know the technical reasoning behind this? Is there a way to distinguish between HSPA and HSPA+ now?

The 4g signal is at a different frequency than 3g. The device realizes that, just like with 2g (E) and 3g, it sees the distinction in frequency and displays what is sees. Of course this just a hypothesis, but it seems about right
-Insert signature here-

But the 4G signal ISN'T different than the 3G one. T-Mobile just made it's 3G incredibly faster. That's why the G2 and myTouch 4G display an 'H'. Why didn't they put any differentiation in those devices? Those devices don't toggle between '3G' and 'H' they toggle between 'G', 'E', and 'H'. With 'H' meaning 3G speeds at the minimum and anything above that.
At first, I thought maybe the DS7 just displays '4G' all the time in place of 'H' but I was perplexed when it displayed a 3G indicator occasionally as well.
Don't get me wrong, I think it's awesome if T-Mobile found some way to differentiate the two but as of right now it makes no technical sense and no one seems to notice.

SaykredCow said:
But the 4G signal ISN'T different than the 3G one. T-Mobile just made it's 3G incredibly faster. That's why the G2 and myTouch 4G display an 'H'. Why didn't they put any differentiation in those devices? Those devices don't toggle between '3G' and 'H' they toggle between 'G', 'E', and 'H'. With 'H' meaning 3G speeds at the minimum and anything above that.
At first, I thought maybe the DS7 just displays '4G' all the time in place of 'H' but I was perplexed when it displayed a 3G indicator occasionally as well.
Don't get me wrong, I think it's awesome if T-Mobile found some way to differentiate the two but as of right now it makes no technical sense and no one seems to notice.
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I was wondering that myself. I am just north of downtown chicago. It shows it as 4g most of the time. When i go to the about phone screen, under status, it shows "Mobile Network Type: HSPA". Not HSPA+. Average speeds are around 2-3Mbps. Far cry from HSPA+

djdanska said:
I was wondering that myself. I am just north of downtown chicago. It shows it as 4g most of the time. When i go to the about phone screen, under status, it shows "Mobile Network Type: HSPA". Not HSPA+. Average speeds are around 2-3Mbps. Far cry from HSPA+
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I think its fair to call it HSPA+ ...but very likely bogged down HSPA+ because it may have been during peak hours where tons of people are using it at once. Remember, we're sharing bandwidth with people using 3G phones too.
Which brings me back to the original topic of this thread that I WISH someone would have the answer to.

When the Streak 7 shows 3G it means its connected on UMTS (384k max) when it shows 4G it could be on either HSPDA or HSPDA+ it cant tell the difference.
Like my nokia N900 said 3G for UMTS and 3.5G for HSPDA

"4g" speeds on dell streak 7
I posted this on twitter to Tmobile and some others but of course nobody responded. On my dell streak 7 with the icon showing 4g in a well covered HSPA+ area Ive maxed the speed out at 4mbps. Not terrible but it averages 1-2 mbps on 4g. Still not the worst and nothing crazy here. The thing is I have a mytouch 4g that I have speed tested the same place and time and same server and it nailed 7-10 mbps and averages 4-5mbps. I was frustrated but then when I tested out my nexus s speed tests at the same time as the dell streak and it beat the dell streak handily every single time that did it for me. I see the same thing with the motorola Atrix, I was able to speedtest one and it said H+ on the icon but still no more than 2mbps and I know thats att not the same as my tmobile connection but still to me 2mbps is NOT 4g! I understand the stress of the network can cause bad tests here and there but all that goes out the window when my "3g" only nexus whips the speed of a so called 4g device on the dell streak. I wanted to give it a chance but the crappy screen combined with slow speeds that are not the networks fault made me return it.

i posted the answer to the op's question. And that answer was taken from the streak 7 manual

What is with this H internet instead of 3g

I have cognition rom and instead of having 3g I have this H internet. It sits on 3g for a milla second then switches to H. My buddy with iphone four is getting way higher speed tests than me, why can't I get 3g and get better speeds?
Sent from my SAMSUNG-SGH-I897 using XDA App

Since this has only been answered 100 times in the past three weeks...
http://lmgtfy.com/?q=H+instead+of+3g+XDA
AND as far as the better speeds for the Iphone go......you can Google that as well............ I'm guessing your on At&T?

I don't know why but my buddies 3g was consistently hitting 300-350 kbs. The max I was hitting was like 150. We were right next to each other when we were testing this, I guess that the iphone blows the captivate away in 3g reception and speed. Also in the spotty areas he was keeping his 3g and I was dropping down to edge. Kinda disappointed . Had anyone else noticed that the 3g reception isn't that good our is it just my area?

jamezz23 said:
I have cognition rom and instead of having 3g I have this H internet. It sits on 3g for a milla second then switches to H. My buddy with iphone four is getting way higher speed tests than me, why can't I get 3g and get better speeds?
Sent from my SAMSUNG-SGH-I897 using XDA App
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this is why i hate american cell providers, they want you to remain ignorant. it's not your fault but it is funny that people arent familiar with grps, edge, hspa, and hspa+ it is like they are telling you that you are too stupid to understand so you dont need to know.
the cdma providers are the worst. but att should be proud of having hspa, but i think they want to hide the fact that it is not available in all 3g areas. instead they advertise the hspa speeds as there 3g speeds as hspa works on there 3g network. they dont distinguish the two so you think there network is so much faster in so many places
meanwhile verizon advertises the hspa coverage for att as 3g coverage to make att's coverage look smaller. they say they have so much more coverage, if they showed a current 3g map for att instead of the hspa coverage you would not see a big difference at all. also cdma 3g is totally different from what att has and is not a fair comparison in the first place. how can you compare coverage if the speed is not comparable?

Comparing phones side by side with speed test is also not the best way to test which device is faster, especially if they are on the same network. I am annoyed by the input on this device or Id go in depth. Use some google-foo and read on cell phone signaling and theory and youll see what I mean.
Sent from my Dell Streak 7 using XDA Premium App

HSPA+

Hey guys! I am using Fasty KK4 edition and I really really want HSPA+. I know for a fact that Fasty KJ3 is HSPA+ enabled and wanted to know if I could just flash the I897UCKJ3 modem while running KK4. If not, how do I enable HSPA+? Thanks in advance!

You sure can. Go to the modem thread and flash any of the modems that are labeled US att. they are all hsdpa not hsupa but some will give you better speed than others. Just gotta teeth them.
Sent from my GT-I9000 using xda premium

IpwnHLmath said:
Hey guys! I am using Fasty KK4 edition and I really really want HSPA+. I know for a fact that Fasty KJ3 is HSPA+ enabled and wanted to know if I could just flash the I897UCKJ3 modem while running KK4. If not, how do I enable HSPA+? Thanks in advance!
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I don't think just flashing the modem will do it, you'd need to install Fasty's(or any other i9000 based ROM) in order to use the HSPA+(AT&T calls 4G). Which, the only change is the increased upload speeds(HSUPA)
I could be wrong about this though, but this is the impression I'm under

kangi26 said:
I don't think just flashing the modem will do it, you'd need to install Fasty's(or any other i9000 based ROM) in order to use the HSPA+(AT&T calls 4G). Which, the only change is the increased upload speeds(HSUPA)
I could be wrong about this though, but this is the impression I'm under
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Small correction. HSPA (H in notification) Is the best speed sgs can achieve, HSDPA and HSUPA in I9000 roms. HDPA+ is something else. Faster than HSPA slower than LTE. Our phones can't achieve HSPA+
Sent from my ICS powered i897

IpwnHLmath said:
Hey guys! I am using Fasty KK4 edition and I really really want HSPA+. I know for a fact that Fasty KJ3 is HSPA+ enabled and wanted to know if I could just flash the I897UCKJ3 modem while running KK4. If not, how do I enable HSPA+? Thanks in advance!
Click to expand...
Click to collapse
Yeah, some of the leaks had an H+ logo, but they never actually achieved. HSPA, which HSDPA and HSUPA is only achievable on i9000 modems. HSPA+ is unattainable by our phones, as it requires different hardware.

Awesome! Makes sense. So SGS gets HSPA (HSDPA and HSUPA) even though the ROMs have a H+ symbol. That's interesting.

kangi26 said:
I don't think just flashing the modem will do it, you'd need to install Fasty's(or any other i9000 based ROM) in order to use the HSPA+(AT&T calls 4G). Which, the only change is the increased upload speeds(HSUPA)
You are thinking of HSUPA, which as I understand it is not the same as HSPA+. It is all very convoluted and confusing so I hope someone will correct me if I get parts of it wrong, but here is my understanding:
AT&T uses both UMTS and HSPA (which consists of HSDPA for download and HSUPA for upload) for it's 3G networks. HSPA is faster, but both are considered 3G.
I believe the only AT&T phone that supports both HSDPA and HSUPA is the iPhone 4. All i897-based ROMs for the Captivate (including Fasty) support HSDPA but not HSUPA.
All i9000-based ROMs do support HSUPA and HSDPA. HSUPA, while only speeding up uploads, also decreases latency so it makes the network faster overall. The trade-off is that i9000 modems can't utilize the audience chip, so you lose hardware-noise cancelling.
AT&T uses both LTE and HSPA+ and calls them both 4G, but HSPA+ and HSUPA are not the same thing. To the best of my knowledge, you cannot get HSPA+ on any captivate ROM.
To summarize for the OP, Fasty may show an "H" in the status bar, but it's not HSPA+. It just means you are connected to an HSPA-capable tower (and even then, you are only using HSDPA). You could try an i9000-based ROM to get slightly faster speeds because they also support HSUPA, but it will still not be HSPA+. For that, you would need a 4G-capable phone.
Edit: Too slow
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kangi26 said:
I don't think just flashing the modem will do it, you'd need to install Fasty's(or any other i9000 based ROM) in order to use the HSPA+(AT&T calls 4G). Which, the only change is the increased upload speeds(HSUPA)
You are thinking of HSUPA, which as I understand it is not the same as HSPA+. It is all very convoluted and confusing so I hope someone will correct me if I get parts of it wrong, but here is my understanding:
AT&T uses both UMTS and HSPA (which consists of HSDPA for download and HSUPA for upload) for it's 3G networks. HSPA is faster, but both are considered 3G.
I believe the only AT&T phone that supports both HSDPA and HSUPA is the iPhone 4. All i897-based ROMs for the Captivate (including Fasty) support HSDPA but not HSUPA.
All i9000-based ROMs do support HSUPA and HSDPA. HSUPA, while only speeding up uploads, also decreases latency so it makes the network faster overall. The trade-off is that i9000 modems can't utilize the audience chip, so you lose hardware-noise cancelling.
AT&T uses both LTE and HSPA+ and calls them both 4G, but HSPA+ and HSUPA are not the same thing. To the best of my knowledge, you cannot get HSPA+ on any captivate ROM.
To summarize for the OP, Fasty may show an "H" in the status bar, but it's not HSPA+. It just means you are connected to an HSPA-capable tower (and even then, you are only using HSDPA). You could try an i9000-based ROM to get slightly faster speeds because they also support HSUPA, but it will still not be HSPA+. For that, you would need a 4G-capable phone.
Edit: Too slow
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The Captivate had HSDPA built in and ready for normal use. However, the captivate has the hardware capability for HSUPA, but apparently AT&T disabled it for marketing reasons (to promote the iPhone over it, at least that's just what I've heard). The above post is 100% correct in stating that you can use HSUPA if you have an i9000-based modem and a kernel that allows it, at the loss of hardware noise cancelling. The captivate's hardware cannot support HSPA+, much less LTE. So yes, HSUPA works, but it only improves upload speeds.
But if you want faster internet, I saw a thread on one of the captivate forums where the user told AT&T they acquired a 4G Infuse (which was a lie), and wanted to add 4G to their data plan. Then they modified the build.prop and APNs and were able to increase their network speed
Found it: http://forum.xda-developers.com/showthread.php?t=1150410

korockinout13 said:
But if you want faster internet, I saw a thread on one of the captivate forums where the user told AT&T they acquired a 4G Inspire (which was a lie), and wanted to add 4G to their data plan. Then they modified the build.prop and APNs and were able to increase their network speed
Found it: http://forum.xda-developers.com/showthread.php?t=1150410
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It is physically impossible to connect to HSPA+ on a Captivate. It doesn't support the bands, nor will the hardware allow it. He was only getting about 2.5-2.8mbps which is 3G, and what I got on stock Froyo. Technically speaking, our phones support HSDPA, 7.2 Mbps; HSUPA, 5.76 Mbps, while HSPA+ on the Infuse 4G is HSDPA 21 Mbps, HSUPA 3.6 Mbps. AT&T can also tell what phone you have based on your IMEI, which he changed on his Captivate (which is a felony). The build.prop edits may increase speeds, but adding 4G won't, he also said he connected to "H" which, once again, isn't 4G it is regular old HSPA (3G upload and download).
Just flash an i9000 rom, kernel, and modem, and you can get much faster download and upload speeds. I am able to achieve almost 6 Mbps on my Captivate.

nygfan760 said:
It is physically impossible to connect to HSPA+ on a Captivate. It doesn't support the bands, nor will the hardware allow it. He was only getting about 2.5-2.8mbps which is 3G, and what I got on stock Froyo. Technically speaking, our phones support HSDPA, 7.2 Mbps; HSUPA, 5.76 Mbps, while HSPA+ on the Infuse 4G is HSDPA 21 Mbps, HSUPA 3.6 Mbps. AT&T can also tell what phone you have based on your IMEI, which he changed on his Captivate (which is a felony). The build.prop edits may increase speeds, but adding 4G won't, he also said he connected to "H" which, once again, isn't 4G it is regular old HSPA (3G upload and download).
Just flash an i9000 rom, kernel, and modem, and you can get much faster download and upload speeds. I am able to achieve almost 6 Mbps on my Captivate.
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Your numbers on the Inspire are a little off. HSDPA=14.4 mbps, HSUPA=5.76 mbps, not your quoted numbers.
As for the Captivate, I've never saw or heard anyone getting more than 6mbps. But 5+ is pretty good. My personal best is about 4.

I have gotten 5.5 down and 4 up before, but that is the best I have ever gotten! That was along time ago and I have flashed and lost the data, but I promise I got!

LOL its not a competition.
Sent from my GT-I9000 using Tapatalk

mrhaley30705 said:
Your numbers on the Inspire are a little off. HSDPA=14.4 mbps, HSUPA=5.76 mbps, not your quoted numbers.
As for the Captivate, I've never saw or heard anyone getting more than 6mbps. But 5+ is pretty good. My personal best is about 4.
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Those are the generic numbers. My numbers were taken from GSM Arena, Phone Arena and other spec sites.

nygfan760 said:
Those are the generic numbers. My numbers were taken from GSM Arena, Phone Arena and other spec sites.
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Then you must mixed them up. My numbers are from gsm arena.

mrhaley30705 said:
Then you must mixed them up. My numbers are from gsm arena.
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...The guy in the guide, that modded is IMEI, said he had an INFUSE 4G not an INSPIRE.
Here:
Googled and found a Infuse IMEI. Called AT&T. Told them I acquired a new Infuse 4G and would like to add it to my service while also havig the faster 4G speeds on my unlimited data plan. Not a problem, Gave them the IMEI. Set it up and asked them to confirm the SOC code for me, HSDPPB. Good to go.