Maximum HSDPA Speed Doubled Again
bare with me I'm trying to learn
so cingular is currently deploying WCDMA (UMTS) technology correct? and it is to be followed by HSDPA upgrades in 2006. So is HSDPA completly deployed????? I think i have the above correct. so there is nothing new to be excited about until Class 10 HSDPA and then we will reach some real good speeds right? when they say 14.4 Mbps i dont have any understanding of exactly how fast that is. can someone give me some sort of guildline for me to understand better.
i got all this off your site but still what does the below mean
HSDPA is standardized by the 3GPP in UMTS Release 5. What is 3GPP stand for? Thanks
i got all this off your site but still what does the below mean
HSDPA is standardized by the 3GPP in UMTS Release 5. What is 3GPP stand for? Thanks
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Well at those speeds you will be downloading faster than you do with most DSL and Cable internet services... until of course, they upgrade Cable download speeds to 100Mbps... which I dont remember where I read but is supposedly coming soon...
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also lets say cingular was running on HSDPA 10 right now how would that compare to Sprint REV A launch? would it be the same or would sprint or cingular be faster?
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Theoretically Cingular would be faster, but as far as I am aware of there have been no real world tests that show that HSDPA on Cingular is anywhere near being considered an EVDO crusher. It just isn't up and running yet. I could be wrong, but would love to know if I am.
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yea the glossary is great... this site has lots of useful tools...great site!!!
Is EV-DO faster than HSDPA???
Is EV-DO faster than HSDPA???
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As of now, they are pretty even, but HSDPA has much more potential to attain higher speeds. Technically HSDPA is a 3.5G technology and EVDO is just 3G.
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the question is unknown. It seems like HSDPA class 10 is much, much, MUCH faster.
However, theoreticals and actuals often differ. EDGE was supposed to be faster than 1xRTT, but Notebook Magazine did a speed test study between Verizon and Cingular and found that Verizon 1X clocked faster speeds.
The other thing is that class 10 phones are not even close. Class 6 phones aren't even in production yet.
No one knows when class 8 or 10 handsets will be coming out.
However, theoreticals and actuals often differ. EDGE was supposed to be faster than 1xRTT, but Notebook Magazine did a speed test study between Verizon and Cingular and found that Verizon 1X clocked faster speeds.
The other thing is that class 10 phones are not even close. Class 6 phones aren't even in production yet.
No one knows when class 8 or 10 handsets will be coming out.
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lol the glossary has everything
3GPP
3rd Generation Partnership Project
meaning the three different technology steps i get it 😁
3GPP
3rd Generation Partnership Project
meaning the three different technology steps i get it 😁
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Gunny…
Very interested in technology, I love it!
Anyway, Cingular is currently deploying UMTS/HSDPA onto their networks, but first they must put on UMTS then they will put on HSDPA afterwards. (HSDPA is a software upgrade- put on each site and then the cell sites would re-boot and they would turn it on) They could roll out UMTS in those 16 markets and then overlay with HSDPA but sometimes they don’t, because they wait till its at least half way with POPS before they upgrade, Sprint and Verizon are doing the same but with EV-DO REV O and A. There are different classes, which mean different speeds, latency, etc... and remember these are just test speeds there no way knowing if this will give the same results in “real life”, because...
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Very interested in technology, I love it!
Anyway, Cingular is currently deploying UMTS/HSDPA onto their networks, but first they must put on UMTS then they will put on HSDPA afterwards. (HSDPA is a software upgrade- put on each site and then the cell sites would re-boot and they would turn it on) They could roll out UMTS in those 16 markets and then overlay with HSDPA but sometimes they don’t, because they wait till its at least half way with POPS before they upgrade, Sprint and Verizon are doing the same but with EV-DO REV O and A. There are different classes, which mean different speeds, latency, etc... and remember these are just test speeds there no way knowing if this will give the same results in “real life”, because...
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But in your opinion, which technology will perform better??? Cingular's or Sprint's???
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very good question..
as of right now, EV-DO destroys UMTS, but i think when HSDPA is upgraded, if those speeds that have been testing are in real life are obtained, then just on that HSDPA will destroy EV-DO. It also depends on many things; spectrum per carrier, capacity on towers, coverage, network.. etc.. (if they use 1.25mhz to 20mhz the speeds vary) There are also differnt types of EV-DO and HSDPA, which offer differnt speeds, latency, etc..
so it is tough to say..
as of right now, EV-DO destroys UMTS, but i think when HSDPA is upgraded, if those speeds that have been testing are in real life are obtained, then just on that HSDPA will destroy EV-DO. It also depends on many things; spectrum per carrier, capacity on towers, coverage, network.. etc.. (if they use 1.25mhz to 20mhz the speeds vary) There are also differnt types of EV-DO and HSDPA, which offer differnt speeds, latency, etc..
so it is tough to say..
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Cingular's technology will perform better in the long run.
Despite their disparate names, EV-DO and HSDPA are "essentially" the same technology (they're both CDMA, and HSDPA is an application of EV-DO-like enhancements to UMTS) There is one major difference: bandwidth. UMTS (HSDPA) runs in a 5MHz channel, while CDMA2000 (EV-DO) runs in a 1.25MHz channel.
Here's the kicker: HSDPA does not have three times the capacity or throughput as EV-DO. If you ran three EV-DO channels, occupying the same bandswidth as HSDPA, you would have greater capacity and throughput in EV-DO. One might entertain the notion that EV-DO is therefore the "better" technology. But since there are no plans to commercialize 3X EV-DO, the consumer is ultimately going t...
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Despite their disparate names, EV-DO and HSDPA are "essentially" the same technology (they're both CDMA, and HSDPA is an application of EV-DO-like enhancements to UMTS) There is one major difference: bandwidth. UMTS (HSDPA) runs in a 5MHz channel, while CDMA2000 (EV-DO) runs in a 1.25MHz channel.
Here's the kicker: HSDPA does not have three times the capacity or throughput as EV-DO. If you ran three EV-DO channels, occupying the same bandswidth as HSDPA, you would have greater capacity and throughput in EV-DO. One might entertain the notion that EV-DO is therefore the "better" technology. But since there are no plans to commercialize 3X EV-DO, the consumer is ultimately going t...
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ratonovitch said:...
Cingular's technology will perform better in the long run.
Despite their disparate names, EV-DO and HSDPA are "essentially" the same technology (they're both CDMA, and HSDPA is an application of EV-DO-like enhancements to UMTS) There is one major difference: bandwidth. UMTS (HSDPA) runs in a 5MHz channel, while CDMA2000 (EV-DO) runs in a 1.25MHz channel.
Here's the kicker: HSDPA does not have three times the capacity or throughput as EV-DO. If you ran three EV-DO channels, occupying the same bandswidth as HSDPA, you would have greater capacity and throughput in EV-DO. One might entertain the notion that EV-DO is therefore the "better" technology. But since there are no plans to commercialize 3X EV-
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Except for the fact that HSDPA does indeed run on a 5MHz channel,while EVDO runs on a much smaller one.
As far as capacity and throughput go, HSDPA manages very well.
As far as capacity and throughput go, HSDPA manages very well.
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nextel18 said:...
Gunny…
Very interested in technology, I love it!
Anyway, Cingular is currently deploying UMTS/HSDPA onto their networks, but first they must put on UMTS then they will put on HSDPA afterwards. (HSDPA is a software upgrade- put on each site and then the cell sites would re-boot and they would turn it on) They could roll out UMTS in those 16 markets and then overlay with HSDPA but sometimes they don’t, because they wait till its at least half way with POPS before they upgrade, Sprint and Verizon are doing the same but with EV-DO REV O and A. There are different classes, which mean different speeds, latency, etc... and remember these are just test speeds there no way knowing if this will give the sa
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well, sometimes they are hardware upgrades as well as software ones. (to go from UMTS to HSDPA is a software upgrade, but im not sure about individual classes- not school ones. lol)
they could roll HSDPA very quickly if they want to, however, this is a system where the carrier/provider wants to maximize ROIC to the best of their availability. they wont roll out HSDPA or even UMTS in a bad area where there might not be a good ROIC. (thats with every carrier) it also depends on spectrum uses, coverage, capacity, and other trends. (carriers arent stupid to spend millions of dollars if they arent going to get it back or some of it back)
well, remember it is all about testing and the other trends i just mentioned.. if they arent there; th...
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they could roll HSDPA very quickly if they want to, however, this is a system where the carrier/provider wants to maximize ROIC to the best of their availability. they wont roll out HSDPA or even UMTS in a bad area where there might not be a good ROIC. (thats with every carrier) it also depends on spectrum uses, coverage, capacity, and other trends. (carriers arent stupid to spend millions of dollars if they arent going to get it back or some of it back)
well, remember it is all about testing and the other trends i just mentioned.. if they arent there; th...
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holy cow batman I'm reading and comprehending 🤣 There was a day I would read your post and was completely clueless with all the terms. I totally follow. Thanks again man I feel informed now. 😁 😁
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im glad.. 🙂
Also, listen to what Rich and Eric have to say, becuase they are very knowledgeable.
Also, listen to what Rich and Eric have to say, becuase they are very knowledgeable.
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nextel18 said:
Also, listen to what Rich and Eric have to say, becuase they are very knowledgeable.
As opposed to chastising them for posting something you supposedly learned about first? Make up your mind.
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gunny said:
I completely understand now. lol these are all software updates I was thinking these were all hardware updates.lol ...
They are mostly software updates only because the base stations are brand-new hardware that was specifically designed to be upgradeable to HSDPA.
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everywhere cingular has launched 3G, they have used HSDPA class 6 base stations. this means that the NETWORK is capable of 3.6 mpbs (peak) download and 350 kbps (peak) upload. HOWEVER cingular is rolling out siginificantly slower phones. the first handsets launched are only umts (which hsdpa is backwards compatible with) umts can only do 350 kbps download.
next - probably this summer - cingular will launch hsdpa class 2 handsets. these can only do 1.8 mbps download but this would put cingular at speed parity with current ev-do (release o) networks.
once cingular has handsets and data cards capable of full class 6 speeds (most likely by holiday shopping time), they will be as fast as ev-do revision A downloading, but revision A will be...
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next - probably this summer - cingular will launch hsdpa class 2 handsets. these can only do 1.8 mbps download but this would put cingular at speed parity with current ev-do (release o) networks.
once cingular has handsets and data cards capable of full class 6 speeds (most likely by holiday shopping time), they will be as fast as ev-do revision A downloading, but revision A will be...
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I follow that Eric, Thanks you.. but still wonder why will revison A be faster uploading?
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gunny said:
...but still wonder why will revison A be faster uploading?
The "D" in HSDPA stands for downlink (download), so the whole point of it is only to speed up download, not upload.
EV-DO release 0 is the same way - only the downlink side is faster compared to 1xRTT.
But there is also HSUPA, where - you guessed it - the "U" stands for uplink (upload). That speeds up the uplink, just like EV-DO revision A does for CDMA networks.
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I wish everything was broken down for me to make it seem so easy... great explanation
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As Rich said, it is called High Speed Uplink Packet Access for Upload and High Speed Downlink Packet Acess, which is for Downlink.
HSDPA= can go up to 14mb/s (availability; out 2006-2007)
HSUPA= up to 5.8mb/s (availability; closer to 2007-200😎
(i am sure these will increase with further software upgrades -classes- and using more spectrum - ie 1.25mhz, 5mhz, to 20mhz )
HSDPA/HSUPA allows for lower network expense per MB (megabyte), which is extremly good if a company or user uses a lot. The latency is also lowered when you compare EDGE,GPRS to HSDPA/HSUPA.
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Qualcomm and TI obviously do a big deal with this technology so if you guys want further information, go to their websites..
HSDPA= can go up to 14mb/s (availability; out 2006-2007)
HSUPA= up to 5.8mb/s (availability; closer to 2007-200😎
(i am sure these will increase with further software upgrades -classes- and using more spectrum - ie 1.25mhz, 5mhz, to 20mhz )
HSDPA/HSUPA allows for lower network expense per MB (megabyte), which is extremly good if a company or user uses a lot. The latency is also lowered when you compare EDGE,GPRS to HSDPA/HSUPA.
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Qualcomm and TI obviously do a big deal with this technology so if you guys want further information, go to their websites..
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You forgot another key player in HSDPA.. Freescale.
Didnt they just demonstrate 3.6 MBps the day after Samsung claimed its stupid "first HSDPA 3.6 MBps" crap at 3GSM Congress..
Didnt they just demonstrate 3.6 MBps the day after Samsung claimed its stupid "first HSDPA 3.6 MBps" crap at 3GSM Congress..
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Rich Brome said:gunny said:
...but still wonder why will revison A be faster uploading?
The "D" in HSDPA stands for downlink (download), so the whole point of it is only to speed up download, not upload.
EV-DO release 0 is the same way - only the downlink side is faster compared to 1xRTT.
But there is also HSUPA, where - you guessed it - the "U" stands for uplink (upload). That speeds up the uplink, just like EV-DO revision A does for CDMA networks.
OUTSTANDING I thought everyone had just skipped over that question I was going to save it for another time. Now I have the missing piece. Another thanks
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eric Lin said:...
everywhere cingular has launched 3G, they have used HSDPA class 6 base stations. this means that the NETWORK is capable of 3.6 mpbs (peak) download and 350 kbps (peak) upload. HOWEVER cingular is rolling out siginificantly slower phones. the first handsets launched are only umts (which hsdpa is backwards compatible with) umts can only do 350 kbps download.
next - probably this summer - cingular will launch hsdpa class 2 handsets. these can only do 1.8 mbps download but this would put cingular at speed parity with current ev-do (release o) networks.
once cingular has handsets and data cards capable of full class 6 speeds (most likely by holiday shopping time), they will be as fast as ev-do revision A
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HSDPA is released in every market that has been upgraded. I think some people made it out to seem like it was only UMTS, but Cingular is deploying HSDPA from the get-go.
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Yep, Cingular's HSDPA is already rolling... just the equipment isn't launched yet, the first hsdpa handset i believe is going to be the samsung zx20 (same as zx10 but w/ hsdpa) and the novatel pc card, the current umts sierra card which i've used in the bay area already does a pretty darn good job and i can't wait til the hsdpa models are launched.
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As far as the PC cards go...they already have an HSDPA card released.
It's called the GlobeTrotter and supports quadband GPRS/EDGE/UMTS/HSDPA. It's truly a globetrotter.
It's called the GlobeTrotter and supports quadband GPRS/EDGE/UMTS/HSDPA. It's truly a globetrotter.
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the sierra wireless 860 is HSDPA Cat 12 capable ( meaning 1.8MBps in downlink)
It is already available from Cingular..
and how much you want to bet, from hardware point of view there will probably be no difference between samsung zx10 & samsung zx20 (especially if they initially plan to come out with Cat 11,12 HSDPA instead of the 3.6 MBps).. so all that needs to be done, is for somebody to hack a phone setting and HSDPA should be "testable" on zx10...
It is already available from Cingular..
and how much you want to bet, from hardware point of view there will probably be no difference between samsung zx10 & samsung zx20 (especially if they initially plan to come out with Cat 11,12 HSDPA instead of the 3.6 MBps).. so all that needs to be done, is for somebody to hack a phone setting and HSDPA should be "testable" on zx10...
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This forum is closed.
