Telecommunications – Transmitter and receiver at separate stations – Plural transmitters or receivers
Reexamination Certificate
2011-04-12
2011-04-12
Tran, Pablo N (Department: 2618)
Telecommunications
Transmitter and receiver at separate stations
Plural transmitters or receivers
C455S063100, C455S067110, C455S255000, C375S344000, C342S104000
Reexamination Certificate
active
07925286
ABSTRACT:
A method of estimating a Doppler maximum frequency fdand/or a local oscillator frequency offset f0, the method comprising the steps of: computing a power density spectrum of a received radio signal over a whole frequency range, scanning the computed power density spectrum to determine a frequency sub-range [fmin; fmax] which is not necessarily centered on 0 Hz, the signal power over the sub-range [fmin; fmax] being equal to a predetermined percentage of the signal power over the whole frequency range, and estimating frequency fdand/or offset f0from frequencies fminand fmax.
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Hogan & Lovells US LLP
Kubida William J.
Meza Peter J.
ST-Ericsson SA
Tran Pablo N
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