Telecommunications – Transmitter and receiver at separate stations – Plural transmitters or receivers
Reexamination Certificate
2006-05-02
2006-05-02
Vuong, Quochien B. (Department: 2682)
Telecommunications
Transmitter and receiver at separate stations
Plural transmitters or receivers
C455S503000, C455S436000, C455S456100, C342S375000, C342S457000, C342S387000
Reexamination Certificate
active
07039433
ABSTRACT:
The invention relates to a method for determining transmission times of signals transmitted by at least one radio transmitter BTS. In order to enhance the accuracy and reliability of estimates of transmission times or of changes of the transmission time of signals transmitted by radio transmitters BTS, it is proposed that a difference in the time level of estimates of the transmission times based on the measurement results of two different radio receivers LMU A,B is taken into account in a filtering of the estimates for obtaining an accurate value for the transmission times. It is further proposed that the changes of the transmission times estimated at different receivers LMU A,B is averaged for obtaining an accurate information about the changes. The invention equally relates to a corresponding radio communications system and to a processing unit for such a system.
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Moilanen Jani
Rantalainen Timo
Ruutu Ville
Cohen & Pontani, Lieberman & Pavane
Dao Minh D.
Nokia Corporation
Vuong Quochien B.
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