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Old 06-19-2012, 01:14 PM
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3G Speeds CDMA Only vs CDMA/LTE

I just did some speed tests, and then was researching ELTE speed test results and came across this little oddity; some people are getting faster 3G speeds with CDMA/LTE mode on instead of CDMA only. If it is true it could explain why Sprint shipped it with LTE on by default instead of CDMA only like (I heard) the Galaxy Nexus comes shipped.

I saw on the Web the improved performance is due to usage of "eHRPD" which I won't begin to pretend to understand lol.

One person over at Sprint 4G roll out forum (http://s4gru.com/index.php?/topic/66.../page__st__600) had this theory:

"eHRPD uses the same airlink and backhaul as EV-DO but uses the LTE core network instead of the EV-DO core network. If the airlink and backhaul are the same but eHRPD produces significantly higher data speeds than does EV-DO, then the LTE or EV-DO core network is the primary independent variable, hence likely responsible for the observed differences."

Again, I don't really know how all this works but was curious about you guy's experience/knowledge.

Below are my depressing speed tests, the result at the bottom and top 2 are CDMA only. The 3 in the middle or CDMA/LTE.



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Old 06-19-2012, 04:10 PM
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Here is a link to a topic i started... You can use it to see if any of the towers near you have already or will soon be upgraded.... I found one about 2 miles from my house. I got about 2mb down.

http://forum.ppcgeeks.com/showthread.php?t=150370


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Old 06-20-2012, 08:20 AM
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Re: 3G Speeds CDMA Only vs CDMA/LTE

I tried running some download speeds in both modes and didn't see any difference, but did notice that I'm getting better 3G speeds than I've ever seen before. Here are my results that I posted in jimmiekain's "How to find Sprint Towers" thread:

I just ran 6 tests while sitting here at work in Orlando (Sandlake Road/Florida Mall area) and got the highest 3G speeds I've ever seen.

First three were CDMA only:
kb up/ kb down
2283/694
1933/732
2185/795

Next three were LTE/CDMA:

kb up/ kb down
2299/762
2208/738
1746/806

In the past, I would get download speeds between 700kb-1500kb. This is with about 5 out of 6 bars for signal strength. It looks like some improvements have been made around here. I'll try to test 3G in other parts of Orlando and see if I also notice improvements.
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Old 06-20-2012, 03:23 PM
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Re: 3G Speeds CDMA Only vs CDMA/LTE

I read on a post that Sprint LTE will still be slower than others like Verizon or ATT LTE.

Is this true?
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Old 06-20-2012, 03:26 PM
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Re: 3G Speeds CDMA Only vs CDMA/LTE

Well I just google it and sad to say it is true. But Sprint still has lower price compare to others.

Exclusive: Testing Sprint's New 4G LTE Network | News & Opinion | PCMag.com
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Old 06-20-2012, 03:31 PM
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Re: 3G Speeds CDMA Only vs CDMA/LTE

PCMag tested the LTE in Atlanta last week. Does that mean it is coming this month? Its time for me to shop for a Evo 4G LTE.

But slow is still better than dial up modem or 3G speed.
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Old 06-21-2012, 10:40 PM
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Re: 3G Speeds CDMA Only vs CDMA/LTE

@chong67 Sprint said it would launch in the middle of 2012... July 1 official starts the end of the middle. My guess (and hope) is they will flip the switch in the next couple of days and a few cities here and there will have LTE.
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Old 06-22-2012, 01:39 PM
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Quote:
Originally Posted by Turbopowr View Post
I tried running some download speeds in both modes and didn't see any difference, but did notice that I'm getting better 3G speeds than I've ever seen before. Here are my results that I posted in jimmiekain's "How to find Sprint Towers" thread:

I just ran 6 tests while sitting here at work in Orlando (Sandlake Road/Florida Mall area) and got the highest 3G speeds I've ever seen.

First three were CDMA only:
kb up/ kb down
2283/694
1933/732
2185/795

Next three were LTE/CDMA:

kb up/ kb down
2299/762
2208/738
1746/806

In the past, I would get download speeds between 700kb-1500kb. This is with about 5 out of 6 bars for signal strength. It looks like some improvements have been made around here. I'll try to test 3G in other parts of Orlando and see if I also notice improvements.
I would think if there is any difference it must only be in select markets where Sprint has been working on Network Vision and enabled this eHRPD functionality... Idk but yeah wow wish I was getting those speeds.

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Old 06-23-2012, 06:07 PM
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Re: 3G Speeds CDMA Only vs CDMA/LTE

I think I ask this before so I ask to confirm, you cant use 4G on LTE right?

Someone said this:

The phone does not include a WiMax radio to utilize Sprint's previous "4G" technology, so essentially you're stuck on 3G until Sprint's network starts rolling out next year.
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Old 06-23-2012, 06:18 PM
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Re: 3G Speeds CDMA Only vs CDMA/LTE

Quote:
Originally Posted by chong67 View Post
I think I ask this before so I ask to confirm, you cant use 4G on LTE right?

Someone said this:

The phone does not include a WiMax radio to utilize Sprint's previous "4G" technology, so essentially you're stuck on 3G until Sprint's network starts rolling out next year.
when u say 4G I assume u mean wimax....no, the ELTE has no wimax....btw, LTE is 4G too
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