[opendtv] Re: AT&T denies loss of iPhone exclusive would hit earnings
- From: Craig Birkmaier <craig@xxxxxxxxx>
- To: opendtv@xxxxxxxxxxxxx
- Date: Fri, 13 Aug 2010 06:50:37 -0400
At 2:37 PM -0500 8/11/10, Manfredi, Albert E wrote:
Craig Birkmaier wrote:
Do you have any sources to verify your statement that Apple has
been ordering WCDMA chips?
Unless they roll their own, they have to be buying WCDMA chips in
order to be 3G compliant. However, I didn't specify that it had to
be from Qualcomm.
Bert
Thanks Bert.
I had to do a bit of research to understand all of this, but you are
correct. W-CDMA was primarily developed by European telcos in an
attempt to get around Qualcomms CDMA patents. It became the air
interface for most 3G systems around the world, while Qualcomm rolled
out CDMA-2000 for Verizon and other carriers around the world. A bit
confusing as they are not compatible, which was at the root of my
misunderstanding.
I was also mistaken that the air interface chip in the new iPhone 4
is from Infineon. Turns out they switched to to the SkyWorks for the
W-CDMA chips in the iPhone 4.
Regards
Craig
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