Primer: Intro To Cellular Networks
Excellent, Educational, Easy to Understand Article by Eric Lin
You have provided us with a very clear, logical, well-presented education here and I appreciate it a lot. Thank you!
Now my question, which has practical consequences regarding our choice of cell phone to buy:
I understand that upgrading GSM (Cingular and T-Mobile) will be more costly than upgrading CDMA/SPC (Verizon and Sprint).
If that is true, it stands to reason that the CDMA upgrade will progress faster than the GSM upgrades.
The ultimate projection is that CDMA > EV-DO > EVDO Revision will be more widespread than GSM > WCDMA/UMTS > HSUPA & UTRAN LTE and will happen at a faster rate, because it will cost Verizon and Sprint less to implement. More Verizon and Sprint people will be enjoying their "bigger/faster" soone...
(continues)
Now my question, which has practical consequences regarding our choice of cell phone to buy:
I understand that upgrading GSM (Cingular and T-Mobile) will be more costly than upgrading CDMA/SPC (Verizon and Sprint).
If that is true, it stands to reason that the CDMA upgrade will progress faster than the GSM upgrades.
The ultimate projection is that CDMA > EV-DO > EVDO Revision will be more widespread than GSM > WCDMA/UMTS > HSUPA & UTRAN LTE and will happen at a faster rate, because it will cost Verizon and Sprint less to implement. More Verizon and Sprint people will be enjoying their "bigger/faster" soone...
(continues)
...
lorna said:
BTW, whoever decided to call it WCDMA should have realized that it would be perceived by laymen as a CDMA rather than a GSM upgrade. I think that they should have used only UMTS, which doesn't mislead.
Wait, so WCDMA isn't actually a revision of CDMA?
I'm confused on this too.
Can you guys make maybe a flowchart of the upcoming (potential/actual) paths of protocol evolution.
i.e.
CDMA>1xRTT>EV-DO>....?
&
GSM>UMTS>....?
Are we eventually going to end up with a universal protocol worldwide? Or just super-duper-multi-band phones that roam like crazy?
And will Qualcomm be producing or holding to license to the chips, as they do with the current CDMA?
...
docbrown88 said:lorna said:
BTW, whoever decided to call it WCDMA should have realized that it would be perceived by laymen as a CDMA rather than a GSM upgrade. I think that they should have used only UMTS, which doesn't mislead.
Wait, so WCDMA isn't actually a revision of CDMA?
I'm confused on this too.
Correct. WDCMA is not a revision/upgrade of CDMA. It is an upgrade of GSM. -Lorna
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docbrown88 said:...lorna said:
BTW, whoever decided to call it WCDMA should have realized that it would be perceived by laymen as a CDMA rather than a GSM upgrade. I think that they should have used only UMTS, which doesn't mislead.
Wait, so WCDMA isn't actually a revision of CDMA?
I'm confused on this too.
Can you guys make maybe a flowchart of the upcoming (potential/actual) paths of protocol evolution.
i.e.
CDMA>1xRTT>EV-DO>....?
&
GSM>UMTS>....?
Are we eventually going to end up with a universal protocol worldwide? Or just super-duper-multi-band phones that roam like crazy?
And will Qualcomm be producing or holding to license to the chips, as they do with the curre
(continues)
...
This forum is closed.
