Method and apparatus for adapting antenna array using received perdetermined signal
First Claim
1. A method for setting optimal weight control component arrangements for a plurality of antenna elements of a transceiver, the method comprising the steps of:
- (a) receiving a predetermined signal from each of the plurality of antenna elements;
(b) combining the received predetermined signal detected from each of the plurality of antenna elements to produce a combined received predetermined signal;
(c) determining a signal quality metric for the combined received predetermined signal;
(d) jointly adjusting the weight control components associated with at least two of the plurality of antenna elements in the station in response to the signal quality metric of the received predetermined signal;
(e) repeating the step (d) until an optimum signal quality metric is achieved;
(f) independently adjusting the weight control components in response to the signal quality metric of the received predetermined signal; and
(g) repeating the step (e) until the determined signal quality metric of the combined received predetermined signal reaches an optimum value.
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Accused Products
Abstract
An antenna apparatus that can increase capacity in a wireless communication system is disclosed. The antenna operates in conjunction with a station and comprises a plurality of antenna elements, each coupled to a respective weight control component to provide a weight to the signal transmitted from (or received by) 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 antenna array creates a beam former for signals to be transmitted from the mobile station, 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 in a coarse and a fine mode. In the coarse mode all the weight control components are jointly adjusted or changed so that the antenna beam scans through a predetermined sector of a circle until a signal quality metric of the received signal is optimized. The coarse adjustment mode is followed by a fine adjustment mode during which the weights of are independently adjusted to further optimize the signal quality metric.
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Citations
27 Claims
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1. A method for setting optimal weight control component arrangements for a plurality of antenna elements of a transceiver, the method comprising the steps of:
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(a) receiving a predetermined signal from each of the plurality of antenna elements;
(b) combining the received predetermined signal detected from each of the plurality of antenna elements to produce a combined received predetermined signal;
(c) determining a signal quality metric for the combined received predetermined signal;
(d) jointly adjusting the weight control components associated with at least two of the plurality of antenna elements in the station in response to the signal quality metric of the received predetermined signal;
(e) repeating the step (d) until an optimum signal quality metric is achieved;
(f) independently adjusting the weight control components in response to the signal quality metric of the received predetermined signal; and
(g) repeating the step (e) until the determined signal quality metric of the combined received predetermined signal reaches an optimum value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method for setting optimal weight control component arrangements for a plurality of antenna elements connected to a plurality transceivers, the method comprising the steps of:
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(a) receiving a predetermined signal, from the plurality of antenna elements;
(b) combining the received predetermined signals, detected at each of the plurality of transceivers, to produce a composite received predetermined signal;
(c) determining a signal quality metric for the composite received predetermined signal;
(d) jointly adjusting the weight control components associated with at least two of the plurality of antenna elements in response to the signal quality metric of the received predetermined signal;
(e) repeating the step (d) until an optimum signal quality metric is achieved;
(f) independently adjusting the weight control components in response to the signal quality metric of the received signal; and
(g) repeating the step (e) until the determined signal quality metric of the composite received predetermined signal reaches an optimum value. - View Dependent Claims (22, 23, 24, 25, 26, 27)
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Specification