Method and apparatus for antenna control in a communications network
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United States of America Patent
Stats
-
Jun 4, 2002
Issued Date -
N/A
app pub date -
Feb 2, 2001
filing date -
Sep 21, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An antenna apparatus for increasing the capacity in a cellular communication system. The antenna operates in conjunction with a mobile subscriber unit and provides a plurality of antenna elements, each coupled to a respective signal control component to provide a weight to the signal transmitted from each element. The weight for each antenna element is adjusted to achieve optimum reception during, for example, an idle mode when a pilot signal is received. The weight values cause the antenna array to create a beam former for signals to be transmitted from the mobile subscriber unit, and a directional receiving array to more optimally detect and receive signals transmitted from the base station. By directionally receiving and transmitting signals, multipath fading and intercell interference are greatly reduced. The weights are adjusted at the transmitting site in accord with signal quality metric information determined at the receiving site. The signal quality metric information is returned to the transmitting site where the optimum signal quality metric is determined. The weights at the transmitting site are then set to provide the antenna directional angle represented by the optimum signal quality metric.
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