3GPP2 Approves CDMA 1x Advanced Standard

Actually, the fewest dropped calls and the most reliable networks in the United States are CDMA which is the dominant system here.(Verizon and Sprint) I sell all carriers and have an account with them all except T-Mobile. Sprint and Verizon by far are clearer and drop fewer calls.Wcdma is even how att and T-Mobile transmit their data. One of my friends owns a recording studio and won't permit gsm phones in the building because of the rf interference they produce. Even China is setting up a new CDMA network, my Palm Treo on Sprint worked in Beijing. Also the US military uses cdma for secure battlefield communications.CDMA is more advanced..

ok so then riddle me this...why when i had vzw i would get rfi and more dropped calls than people with metro pcs? CDMA sucks...it's signal sucks and GSM is clearer and CDMA handsets consume 4 times more battery power vs GSM handsets. CDMA technology offers lower talk time than GSM because the transmitter CDMA is active all the time. GSM has higher talk time than CDMA based phones because the transmitter TDMA does not require constant transmit. The transmitter can be idle when not actually transmitting packets. As far as security maybe with the appropriate recources it might be done...maybe! but on either network type, you could initiate a data session, and use encrypted VoIP services. The key fact is that neither system is child's play to cr...
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Wow, where to even start with this. Ok MetroPCS well they are a CDMA carrier to. So you just proved the other side of the argument with that one. All cellular services actively transmit packets all the time. The transmission of data on the device gives the network valuable information. What tower should you be running off of, how far away you are from it (wich controls how much power comes from the transmitter), even the algorithm for checking to determine if there is an active request from the network to initiate a voice or data session.

The reason CDMA uses more power is because the trasmitters in the device push harder than GSM. CDMA by nature is capable of transmitting between 2 and 5 miles farther than a GSM tower. This is a...
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Wow, I didn't know there were people as knowledgable as yourself on Phone Scoop.

Since your so knowledgable can you TRY to explain the logic in wireless carriers having 4 different charges for internet? Claiming smartphones and laptops use more data that a regular handset running Opera Mini or Skyfire.
And while giving me whatever explanation you give me please keep in mind that a webpage such as Phone Scoop looks no different on my end whether viewing it on my Nokia N95-3 running S60 3rd Ed., Samsung Blackjack running WinMo 6.1, or viewing Phone Scoop on my laptop, the only difference is screen size.

So how exactly is it that wireless carriers "claim" smartphones & laptops use more data when a lot of regular cellphones now a days h...
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How much time do you spend browsing websites on your phone versus how much time do you spend browsing websites on your PC?

Typical browsing sessions are just a few minutes for a phone, no more than an hour on a netbook, and usually several hours on a PC. That's why PCs use more data than mobile phones. Because you browse on the mobile phone for much less time.

YOUR MILEAGE MAY VARY of course.

There's also the fact that you will probably download more data on your laptop in one session (because you actually downloaded a file) than a year's worth of data usage on your phone.

I do probably 90% of my browsing on my N95, really the only timd I use my laptop these days is for porn video or to downlnad a few songs off of amazonmp3.
But again I use my N95 for the connection, I have JoikuSpot on my phone which lets me use it as a WiFi hotspot.

I am pretty sure smart phones and laptops require higher data prices because the users use more data. Its not just because of HTML. Most smart phones and PC users have corporate e-mail. This requires an almost constant conn. to the e-mail servers. Does this help explain?

The almost constant connection to corporate email servers makes sense.

I just use JoikuSpot to connect my laptop via wifi, I use the Nokia N95.

The pages look no different because of a tool called compression. Opera and Skyfire have put a good deal of money into figuring out how to compress images into a lower resolution format that better matches the resolution on your mobile screen. This reduces the actual amount of information that travels through the network by a significant amount.

Also you are physically incapable of surfing internet pages on your N95 as fast as you do on a laptop or desktop computer. Your N95 will also not be conencting to P2P sites and putting a massive strain on network. Also by nature of the device, you will not be streaming media continuosly over the network.
The patterns of usage for your phone are much different than they are on a desktop. ...
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Thanks! 😁

My knowledge is freely available to anyone that would like to understand the technologies better in the cellular industry. Just PM me.

How dumb are you? 🤣

I thought the TDMA network was shut off quite some time ago? Or was that AMPS? Or both?

umm this is a rely simple one for those that dont understand well here ya go

CDMA like Verizon and Sprint uses the same towers and spectrum to make voice and data calls it currently stops one to do another this is efficient because the phone has only one radio in it and essentially only hooks up to one network

GSM / WCDMA is two separate networks for voice and data with separate towers and separate radios in the phone kinda like a am / FM radio so a data call does not interfere with a voice call because they are on different networks this also hurts battery life because you could be hooked up to two different networks at the same time

also to answer your question on dominance we here in the USA CDMA is dominant in Europe GSM UMTS ...
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With respect to CDMA, even though in my previous post I said CDMA sucks...Sprint is the better network vs Verizon...I'm not talking about Sprint customer service or anything else....just that Sprint is the king of CDMA when it comes to performance. So when they say "bringing you the first 4G network" and "now network" it's true, their data speeds are superb. So that's my choice if I ever returned to CDMA. BTW the Palm Pre looks sweet.

The GSM technology is the older of the two. Qualcomm developed CDMA for the military for how secure and "Reliable" it is. It was to be the world standard once implemented for commercial telecommunications. But because of the footprint that GSM had, it essentially became adopted as the standard. CDMA is the formidable technology that had the world in the palm of it's hand. If they had made the decision to adopt EV-DV over EV-DO, there is no telling where CDMA would be positioned now. EVDV would have given the simultanious data and voice transfer GSM is noted for but with much better quality and security. This advancement is a welcomed coming. A recent poll taken on dropped calls revealed that the least amount were all CDMA networks with vzw w...
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Yes, I remember when I had the Sanyo M1...talk about a sweet phone, what made me sad was no sim card and no way to take such a sweet phone to any other network, I just can't see myself paying top dollar for a cdma phone even though people say you can flash cdma phones but i don't have vzw money anymore...i promise this to be true that when i was a vzw sub i went through 30 phone exchanges in 5 months...mostly LG and dropped calls non stop. I hope Sprint regains their lost luster.

ahhhh..the M1. It was considered a brick amoungst the rest of the phones at the time, but hey, 1gig of internal memory! awesome!
A sim card was actaully developed for CDMA. It was actually an R-SIM. Unfortunately, it never came to be.

Sprint is on a good path but needs to stay focused on that path. Much damage was done with old management. They have always been innovators with the rest of the industry watching every move they made. They are aggressively trying to rebuild that status. If not for WiMAX(or Clear), the puch for LTE would have not emerged so quickly. They are definitely in a rough state, but it is always said, One must go through the valley before climbing the mountain. I personally have had bad experiences in the past but th...
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I must make a correction. The card was actually a R-UIM, and it would never be used in the states. However, Asia does.

Yes, Removable User Identity Module. Most CDMA phones in Asia - including 100 million CDMA users in India - use R-UIMs. It was the operators in the US who decided they didn't want to use R-UIMs, way back when.

There are new SIM cards for CDMA coming out in India this month that support Open Market Handsets for CDMA. The handset becomes an unlocked device that can be sold on the open market for any operator, since all operator-specific network configuration, service provisioning and subscriber-identity data get stored on the SIM card. CDMA will grow a lot faster in emerging markets under this program.

You said LTE & GSM have nothing in common, isn't LTE the next evolution od HSPA+? In which case it would be related to GSM?

Not true. LTE just happens to be going through the same standards body (3GPP) as GSM/UMTS/HSPA. It is based on a completely different technology (OFDM) than UMTS and HSPA (which, by the way, are based on CDMA).

The migration path to LTE is very similar for GSM and CDMA. With GSM, it's upgrading UMTS and HSPA for nationwide coverage while augmenting their 3G networks with LTE. For CDMA, it's upgrading 1X and EV-DO while augmenting their 3G networks with LTE.

That is not entirely correct. Please see my previous explanation on the relation of LTE and GSM.

https://www.phonescoop.com/forums/forum.php?fm=m&ff= ... »

lol couldn't take being called a idiot, im sorry i hurt your feelings.

Wrong. CDMA is more reliable then GSM.