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Method for correcting Air Mobile Radio Doppler shift for improved Communication with Base Station and improved Background Scanning

IP.com Disclosure Number: IPCOM000020010D
Original Publication Date: 2003-Oct-17
Included in the Prior Art Database: 2003-Oct-17

Publishing Venue

Motorola

Related People

Authors:
Mark Rozental Moshe Ben Ayun Ovadia Grossman

Abstract

In a cellular system when a Mobile Station (MS) communicates with a Base Station (BS) while moving there is a Doppler Shift added to the frequency that the MS receives from the BS. In the TETRA standard (and in many other cellular or public safety standards) the synchronization is done in a following way: