Method and system for estimating movement speed of mobile unit

Details Method and system for estimating movement speed of mobile unit Method and system for estimating movement speed of mobile unit

2006-09-12

2006-09-12

Eng, George (Department: 2617)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C455S436000, C455S456100, C455S456200, C455S456500, C455S456600, C455S422100, C375S148000, C375S150000, C375S152000

Reexamination Certificate

active

07107056

ABSTRACT:
The present invention is related to a method for estimating a movement speed of a mobile unit in a mobile radio communication system. First, a signal from the mobile unit is received. Then, a first signal is generated by using a first filter having a first cut-off frequency to filter the signal. A first speed is obtained based on the first signal. A second signal is further generated by using a second filter having a second cut-off frequency to filter the signal. A second signal is obtained based on the second signal. Then the movement speed of the mobile unit is determined according to the first speed and the second speed.

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