Mobile radio terminal and its moving speed detecting method

Details Mobile radio terminal and its moving speed detecting method Mobile radio terminal and its moving speed detecting method

2005-06-14

2005-06-14

Banks-Harold, Marsha D. (Department: 2686)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C455S067110, C455S456600

Reexamination Certificate

active

06907251

ABSTRACT:
A moving speed detecting method of a mobile radio terminal which makes communication with a base station outputting a pilot signal includes a step of predicting phases and amplitudes of the pilot signal from the base station by using a plurality of prediction methods having different characteristics. A calculating step calculates errors for the prediction results, which are obtained for respective prediction methods in the prediction step, and a prediction error comparing step compares the prediction errors with respect to each of the prediction methods, which are calculated by the calculating step, to detect a moving speed of the mobile radio terminal.

REFERENCES:
patent: 5396645 (1995-03-01), Huff
patent: 5585805 (1996-12-01), Takenaka et al.
patent: 6163534 (2000-12-01), Wang
patent: WO 97/31497 (1997-08-01), None

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