Compensation of doppler shift in a mobile communication system
AssigneeNokia Corporation
InventorJulie Pekkarinen
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Abstract
The present invention relates to a method and a system for compensating for doppler shift in a signal transmitted between a mobile station and a base station in a mobile communication system. In the method the doppler characteristic is determined for two selected portions of the received signal, the doppler characteristic being in the form of a phased offset for each selected portion. The larger phase offset is them used as a doppler characteristic to provide a doppler shift compensation for the received signal.
Claims10
A method for compensating for Doppler shift in a signal transmitted between a mobile station and a base station in a mobile communication system, the method comprising:
- determining a Doppler characteristic for two selected portions of a received signal, the Doppler characteristic being in the form of a phase offset for each selected portion;
- comparing the phase offset for each selected portion to determine a larger phase offset;
- and
- using the larger phase offset as a Doppler characteristic to provide a Doppler shift compensation for the received signal.
A system for compensating for Doppler shift in a signal transmitted between a mobile station and a base station in a mobile communication system, the system comprising:
- circuitry for determining a Doppler characteristic for two selected portions of a received signal, the Doppler characteristic being in the form of a phase offset for each portion;
- circuitry for comparing the phase offset for each selected portion to determine a larger phase offset;
- and
- circuitry for implementing a Doppler shift compensation on a basis of the larger phase offset as a Doppler characteristic for the received signal.
Dependencies are inferred from the claim text.