Method and system for selecting an antenna beam of a base station of a radio system
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United States of America Patent
Stats
-
Jun 18, 2002
Grant Date -
Mar 21, 2002
app pub date -
Nov 20, 1998
filing date -
May 22, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention relates to a base station of a radio system whose antenna means (11) include: means (6 to 8) for receiving signals associated with the same logical channel by at least two antenna beams (1 to 4), measuring means (8) for measuring the signal level of the signals received by the antenna beams, and control means (8) for selecting one or more antenna beams (1 to 4) and for supplying the signals of the selected antenna beam to a receiver unit (5) of the base station (BTS1). In order that the best possible signal would be definitely transmitted to the base station, the base station (BTS1) comprises means for measuring the quality of the signals and for generating a quality signal (BER) and for supplying it to the control means (8), and the control means (8) are arranged to select an antenna beam (1 to 4) on the basis of the signal level measured by the measuring means and the quality signal (BER) supplied to the control means.
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