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United States Patent 7,680,518
Iacono , et al. March 16, 2010

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Deviation based antenna control algorithm for an access point


Abstract
An access point operating in a wireless communication network includes a smart antenna for generating directional antenna beams. A method for operating the access point includes communicating with a client station using a selected directional antenna beam, with the client station initially being in a stationary position. Signal to noise ratios of signals received from the client station within a time interval are measured. At least one variation metric of a mean of the measured signal to noise ratios within the time interval is determined. This at least one determined variation metric is compared to a threshold for determining if the client station is moving.


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Inventors: Iacono; Ana Lucia (West Chester, PA), Liu; Kai (Melville, NY), Steinbach; Daniel (Commack, NY)
Assignee: InterDigital Technology Corporation (Wilmington, DE)

Appl. No.: 11/691,062
Filed: March 26, 2007

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Related U.S. Patent Documents

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Application Number Filing Date Patent Number Issue Date
60744068 Mar., 2006


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Current U.S. Class: 455/562.1 ; 370/259; 370/328; 370/468; 370/469; 379/219; 379/220.01
Current International Class: H04M 1/00 (20060101)
Field of Search: 455/452.2,277.2,513,25,115.1,41.2,532.1,562.1 370/334,278,352,353,310,459,468,338,252,280,335,259,328,401,395.5,469,329 379/219,220.01