Does anyone know why the hd2 has hsdpa support (hspa+ downloads) before T-Mobile's hspa 4g campaign? It can be considered as half of a 4g device since it only supports 4g downloads but not 4g uploads.
Sent from my HD2 using XDA App
the htc hd2 supports up to 7.2Mbps. But the real 4G t-mobile is coming out is 40+
HSDPA and HSPA+ are 2 different things.
TmoUS HD2 does support HSDPA (when you see the H in the taskbar) but does not support HSPA+
HSDPA (High-Speed Downlink Packet Access) is actually more like 3G+ since I do get insane download speeds on it, and it has the actual capacity to get 14.4 MBPS down (although I don't know anyone who gets that)
HSPA+ (Evolved High-Speed Packet Access) can get up to 42 MBPS down and our phones do not support this.
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With T-mobile USA's promise of 21mbps hsdpa next year and the rumored release of the HD2 for T-mobile USA I've gotten to thinking. The HD2 is currently listed as being capable of 7.2 mbps hsdpa, which I realize T-mobile USA doesn't even have yet. So is hsdpa speed a software or hardware issue? And assuming it is software does anyone have any thoughts on how likely it is there will be an update, official or xda. Sorry if this is a dumb question, it just seems dumb to buy an amazing phone like the HD2 and not get the best download speeds around.
Mobile Operators usually limit the HSDPA speeds. On my HD2 in my location I experience some 1.7Mbs via HSDPA, while WiFi provides some 6-7MBs.
The 7.2 MBps is a hardware limit for the HD2, though. Can't get it any faster with software updates.
I'm getting approx 1.25 mbps with 3G here (VF-CZ).
Considering HSPA+ is still only a 3g network, should phones that had 3g capability be able to take advantage of HSPA+? I mean when T-Mobile upgraded their old 3g to HSDPA/HSUPA, every phone got the boost.
And why do phones that are cable of utilizing HSPA+ need a sim card that supports HSPA+
yourlife said:
Considering HSPA+ is still only a 3g network, should phones that had 3g capability be able to take advantage of HSPA+? I mean when T-Mobile upgraded their old 3g to HSDPA/HSUPA, every phone got the boost.
And why do phones that are cable of utilizing HSPA+ need a sim card that supports HSPA+
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I work Tmo Retail. All 3g Tmo phones can utilize the HSPA+ network. The difference with the newer MT4G and G2 is that they can handle higher speeds depending on your area.
For instance, the Samsung Vibrant can handle up to 7.2 mbps while the G2 can do 14.4. In Los Angeles, I get around 4-5 megs on HSPA+ so both phones would be about the same speeds. However, I've heard in other areas in the country, some people have reached 8-12 mbps with HSPA+. In that case, the higher speed capabilities would make a difference.
Hope that answers your question!
hukkguai said:
I work Tmo Retail. All 3g Tmo phones can utilize the HSPA+ network. The difference with the newer MT4G and G2 is that they can handle higher speeds depending on your area.
For instance, the Samsung Vibrant can handle up to 7.2 mbps while the G2 can do 14.4. In Los Angeles, I get around 4-5 megs on HSPA+ so both phones would be about the same speeds. However, I've heard in other areas in the country, some people have reached 8-12 mbps with HSPA+. In that case, the higher speed capabilities would make a difference.
Hope that answers your question!
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So you're saying that once the average speeds for HSPA+ are say 8mbps that my phone will be capped at 7.2 mbps, but if the average speeds are currently under 7.2 that I would be completely capable of having the same speeds as a phone equipped for HSPA+?
I went to the T mobile store and showed them under about phone > network it shows HSDPA. He said this is normal and it its really HSPA+. Does everyone else have this or is it just me?
Sent from my HTC Glacier using XDA App
http://en.wikipedia.org/wiki/High-Speed_Downlink_Packet_Access
High-Speed Downlink Packet Access (HSDPA) is an enhanced 3G (third generation) mobile telephony communications protocol in the High-Speed Packet Access (HSPA) family, also dubbed 3.5G, 3G+ or turbo 3G, 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 14.0 Megabits/s. Further speed increases are available with HSPA+, which provides speeds of up to 42 Mbit/s downlink and 84 Mbit/s with Release 9 of the 3GPP standards.[1]
Yea I know that Im asking if anyone has an actual HSPA+ under network that shows up because everyone I've seen around my way has HSDPA. The rep said even though it says that you get HSPA+ speeds.
Sent from my HTC Glacier using XDA App
Mine shows UMTS, but im running cm7.
Scratch that, just got 4g. Says HSDPA.
i thought the nexus s doesnt have HSPA+ bands? confused here
It doesn't. It only supports theoretical d/l speeds of 7.2 mb
Sorry new to tmo, is the phone on hspa when it displays an H instead of the 3g or E for edge?
Sent from my Nexus S
kenvan19 said:
Sorry new to tmo, is the phone on hspa when it displays an H instead of the 3g or E for edge?
Sent from my Nexus S
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HSDPA is technically 3G.
It will only flip for custom ROMs. The stock ROM will say 3G on both UMTS and HSDPA.
NS does not have the hardware capability to operate on HSPA+. H in network is HSDPA, little snip from my other post.
MrHKM said:
HSDPA and HSPA+ is not the same. As HSDPA (high speed downlink packet access) is considered 3.5G by today's standard and is capable of 7-14Mbps using UMTS. Where HSPA+ (high speed packet access) is 21-42Mbps and sadly due to FFC changing standards its now considered 4G.
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Now back when 4G wasn't used so freely H was fine for HSDPA but now since we have HSPA+ only way you can actually know it if you looking directly at the mobile network type. So from H itself you won't actually know if you are using HSPA+ or HSPA only way is if you install widget that display network detail on panel.
Hi guys,
I noticed that 4G (HSPA) drains my batter far more than 3.5G (HSDPA).
I noticed this because all day yesterday I was getting H only not H+ and I noticed my battery drained less than when its primarily connected to H+.
Is there a way to turn off HSPA (4G) but keep HSDPA (3.5G) active?
Thanks.
You are confusing yourself.
HSPA and HSDPA is same thing.
HSDPA = High Speed Downlink Packet Access (Downlink/download part of the HSPA)
HSUPA = High Speed Uplink Packet Access.
HSPA+ = Evolved High Speed Packet Access (faster)
All of these are 3.5G only. Some american carriers like to call HSPA/HSPA+ as 4G but its not.
Basically if network sometimes looses HSPA+ connectivity for short period due to network glitches or as per area sometimes. Thats why you were getting just H and not H+ for short period.
Nothing more to it. Phone is HSPA+ ready so if your network supports it, it will default to HSPA+. You can force it to be in EDGE mode, thats it.
Correct. HSDPA and HSPA+ (what he called 4g) is quite literally in every respect the exact same thing. Literally, they are both 3.5g. The battery drain was likely coincidental. More tests would certainly be needed.
RogerPodacter said:
Correct. HSDPA and HSPA+ (what he called 4g) is quite literally in every respect the exact same thing. Literally, they are both 3.5g. The battery drain was likely coincidental. More tests would certainly be needed.
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Nope, HSDPA and HSPA are the same, as HSPA is just a container name for HSDPA and HSUPA. HSDPA+ is up to 84Mbit and HSDPA is up to 14Mbit.
Hmmm so apparently I cannot seperate HSPA from HSDPA as they are the same thing.
HSDPA + HSUPA = HSPA
So does that mean previously the upload rate was not as fast as the download so they introduced HSPA which combines a fast download (HSDPA) with a fast upload (HSUPA)?
Because it appears I can disable HSPA (HSDPA) but dialing *301279# and turning off HSPA which will give me 3G only.