CDMA: Verizon and Sprint, GSM: Cingular and TMobile

[PlatinumGold]

is that about right? where does nextel fall?

 

[mAdD INDIAN]

Nextel uses a different network I believe...its called iDEN.

 

[rmrf]

Originally posted by: mAdD INDIAN
Nextel uses a different network I believe...its called iDEN.

except that sprint and nextel are one company now.

 

[NutBucket]

iDEN will be around for many years to come. The networks aren't slated to merge until '08 at the earliest. I believe iDEN is a specialized form of TDMA if I'm not mistaken.

 

[PlatinumGold]

Originally posted by: NutBucket
iDEN will be around for many years to come. The networks aren't slated to merge until '08 at the earliest. I believe iDEN is a specialized form of TDMA if I'm not mistaken.

isn't GSM also a derivative of TDMA?

 

[NutBucket]

Yes it is.

 

[Lonyo]

This is why the rest of the world pretty much decided on one thing and they stuck with it

 

[Zenmervolt]

Originally posted by: Lonyo
This is why the rest of the world pretty much decided on one thing and they stuck with it

Yup, that's also why, even though CDMA is two years newer, more secure, and has higher voice quality the rest of the world uses GSM. Because by latching onto a single standard they stifled innovation.

ZV

 

[PlatinumGold]

Originally posted by: Zenmervolt

Originally posted by: Lonyo
This is why the rest of the world pretty much decided on one thing and they stuck with it

Yup, that's also why, even though CDMA is two years newer, more secure, and has higher voice quality the rest of the world uses GSM. Because by latching onto a single standard they stifled innovation.

ZV

if what you say is accurate, than Verizon should consistently have better quality than Cingular?

 

[NutBucket]

Zen, you left off higher data rates

 

[mAdD INDIAN]

Originally posted by: Zenmervolt

Originally posted by: Lonyo
This is why the rest of the world pretty much decided on one thing and they stuck with it

Yup, that's also why, even though CDMA is two years newer, more secure, and has higher voice quality the rest of the world uses GSM. Because by latching onto a single standard they stifled innovation.

ZV

It's quite the opposite actually. CDMA, as a technology, is owned and licensed by Qualcomm. Any innovation that happens in that area, is pretty much by Qualcomm. Any devices that use the CDMA protocol stack get their stack from Qualcomm (or pay license if they make their own, which is much harder). That way there is no real innovation since there is no competition to improve the standards/technology...since one company controls it.

Which is why most carriers in Europe chose GSM. Its a fairly open standard which is constantly being improved, especially in its latest form with EDGE. Many companies create their own protocol stack with their own unique improvements and features.

And yes GSM is based on TDMA...its a pretty neat concept actually...its based on time slicing...so each cellphone gets a certain window of time to send data on the same frequency. Its interesting to see how its implemented on such a wide scale, if you consider how precise (timing wise) all the equipment has to be!

The next wave in cellular technology is in the form of WCDMA, also known as UMTS. That is not owned by Qualcomm. Its based on Code-division-multiple access (CDMA) core principles but its not similar to CDMA cellular technology. It has its own limitations and implementation.

 

[aphex]

Originally posted by: mAdD INDIAN

Originally posted by: Zenmervolt

Originally posted by: Lonyo
This is why the rest of the world pretty much decided on one thing and they stuck with it

Yup, that's also why, even though CDMA is two years newer, more secure, and has higher voice quality the rest of the world uses GSM. Because by latching onto a single standard they stifled innovation.

ZV

It's quite the opposite actually. CDMA, as a technology, is owned and licensed by Qualcomm. Any innovation that happens in that area, is pretty much by Qualcomm. Any devices that use the CDMA protocol stack get their stack from Qualcomm (or pay license if they make their own, which is much harder). That way there is no real innovation since there is no competition to improve the standards/technology...since one company controls it.

Which is why most carriers in Europe chose GSM. Its a fairly open standard which is constantly being improved, especially in its latest form with EDGE. Many companies create their own protocol stack with their own unique improvements and features.

And yes GSM is based on TDMA...its a pretty neat concept actually...its based on time slicing...so each cellphone gets a certain window of time to send data on the same frequency. Its interesting to see how its implemented on such a wide scale, if you consider how precise (timing wise) all the equipment has to be!

The next wave in cellular technology is in the form of WCDMA, also known as UMTS. That is not owned by Qualcomm. Its based on Code-division-multiple access (CDMA) core principles but its not similar to CDMA cellular technology. It has its own limitations and implementation.

I've heard Cingular may be the first to implement WCDMA, is that what youve been hearing?

 

[mAdD INDIAN]

I don't know really.

 

[RU482]

i miss analog

 

[NutBucket]

Originally posted by: redly1
i miss analog

Then get Verizon/Sprint and use it

 

[mzkhadir]

Verizon is supported by Lucent Technologies for CDMA 2000.

 

[Splork]

Originally posted by: aphex

Originally posted by: mAdD INDIAN

Originally posted by: Zenmervolt

Originally posted by: Lonyo
This is why the rest of the world pretty much decided on one thing and they stuck with it

Yup, that's also why, even though CDMA is two years newer, more secure, and has higher voice quality the rest of the world uses GSM. Because by latching onto a single standard they stifled innovation.

ZV

It's quite the opposite actually. CDMA, as a technology, is owned and licensed by Qualcomm. Any innovation that happens in that area, is pretty much by Qualcomm. Any devices that use the CDMA protocol stack get their stack from Qualcomm (or pay license if they make their own, which is much harder). That way there is no real innovation since there is no competition to improve the standards/technology...since one company controls it.

Which is why most carriers in Europe chose GSM. Its a fairly open standard which is constantly being improved, especially in its latest form with EDGE. Many companies create their own protocol stack with their own unique improvements and features.

And yes GSM is based on TDMA...its a pretty neat concept actually...its based on time slicing...so each cellphone gets a certain window of time to send data on the same frequency. Its interesting to see how its implemented on such a wide scale, if you consider how precise (timing wise) all the equipment has to be!

The next wave in cellular technology is in the form of WCDMA, also known as UMTS. That is not owned by Qualcomm. Its based on Code-division-multiple access (CDMA) core principles but its not similar to CDMA cellular technology. It has its own limitations and implementation.

I've heard Cingular may be the first to implement WCDMA, is that what youve been hearing?

Actually, you're correct. I know for a fact that Cingular has UMTS in at least 10 cities. I know that a large scale deployment will take years, but it should be regularly sold by the end of '06 or early '07.

-sp

 

[mAdD INDIAN]

*HSPDA* in some select areas in the US.

 

[geckojohn]

what sucks about CDMA and TDMA is that they don't use sim cards (like gsm). Gsm is cool since they use these cards - you can transfer phones really easy.

 

[inthell]

So whats the better choice CDMA (verizon) or GSM (Cingular) ahhh i can't pick help...currently i have sprint which isn't bad

Im thinking Verizon is the way to go cuz i don't leave the country that often and i could care less about sim cards

i live in the northeast US