Apparatus and method for estimating a velocity of a mobile...

Telecommunications – Radiotelephone system – Zoned or cellular telephone system

Reexamination Certificate

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C455S226100, C455S067160, C455S067110, C455S561000, C455S345000, C455S550100, C455S352000, C455S418000, C342S104000, C342S106000, C342S405000, C342S402000, C342S357490, C342S461000

Reexamination Certificate

active

10940951

ABSTRACT:
A Base Station (BS) apparatus for estimating a velocity of a Mobile Station (MS) in a mobile communication system includes a channel estimator for performing channel estimation according to a velocity band, receiving a wireless channel signal from the MS, and performing channel estimation using channel estimation coefficients optimized for individual velocity bands; and a velocity estimator for dividing the velocity band into a plurality of sub-Doppler bands, detecting a sub-Doppler band including a frequency index having a maximum frequency response from among the divided sub-Doppler bands, and transmitting information of the detected sub-Doppler band to the channel estimator such that a channel estimation coefficient corresponding to the information is transmitted.

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