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Ensure NCDMA compliance with 3GPP2

Posted: 03 Feb 2014     Print Version  Bookmark and Share

Keywords:cellular standards  NCDMA  3GPP2  physical layer  RF 

Unlike many other cellular standards, NCDMA is required by the 3GPP2 standard to perform spectrum inversion in the physical layer before transmission and after reception. With today's vast selection of radio frequency (RF) transceivers and base band processors, it is easy to imagine how one could come across a set of RF transceiver and base band processor that have mismatched spectrum in the transmit and receive paths. This simple oversight will result in noncompliance to the 3GPP2 standard and failure to demodulate. However, there are a few simple techniques that can help determine if spectrum inversion has been performed on a signal.

View the PDF document for more information.

Originally published by Maxim Integrated at as "Spectrum Inversion in NCDMA to Ensure Compliance with 3GPP2".

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