Method and apparatus for estimating Doppler speed in wireless communication
First Claim
1. A method for estimating Doppler speed in wireless communications, the method comprising:
- receiving signals;
generating samples of the signals;
calculating a phase change rate (PCR) of the samples; and
calculating a Doppler speed value from the PCR.
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Abstract
The present invention is related to a method and apparatus for estimating Doppler speed in wireless communication. The apparatus comprises a receiver, a sampler, a pilot/data removal unit, a phase change rate (PCR) measurement unit, a Doppler speed value calculating unit. The receiver receives signals, and the sampler samples the received signals. The pilot/data removal unit removes pilot or data information from the samples. The PCR measurement unit measures a PCR of the samples and the Doppler speed value calculating unit calculates a Doppler speed value based on the PCR. The Doppler speed value calculating unit is preferably a look-up table or a mapping functional unit.
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Citations
14 Claims
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1. A method for estimating Doppler speed in wireless communications, the method comprising:
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receiving signals;
generating samples of the signals;
calculating a phase change rate (PCR) of the samples; and
calculating a Doppler speed value from the PCR. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus for estimating Doppler speed in wireless communications, the apparatus comprising:
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a receiver for receiving signals;
a sampler for generating samples of the received signals;
a phase change rate (PCR) measurement unit for measuring PCR of the samples; and
a Doppler speed value calculation unit for calculating a Doppler speed value from the PCR. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification