Multiplex communications – Diagnostic testing – Determination of communication parameters
Reexamination Certificate
2007-05-01
2007-05-01
Phan, Tho (Department: 2821)
Multiplex communications
Diagnostic testing
Determination of communication parameters
C370S349000, C370S352000, C370S252000, C370S465000, C455S562100
Reexamination Certificate
active
10675563
ABSTRACT:
A Station Management Entity (SME) steers a directional antenna for a station to communicate with an Access Point (AP) in an 802.11 protocol system. The SME can steer the antenna before or after an 802.11 station has authenticated and associated with the Access Point. During a passive scan, the steering process cycles through the available antenna positions and monitors an AP beacon signal to determine a best position based on, for example, a Received Signal Strength Indication (RSSI). During an active scan where access probing is used, the steering process cycles through the antenna positions and monitors a probe response to determine the best antenna position. Additional scans may be performed based on a decision that the received signal level of the currently selected antenna position has dropped below a predetermined threshold.
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Hoffmann John E.
Johnson Kevin P.
Nelson, Jr. George Rodney
Regnier John A.
IPR Licensing Inc.
Phan Tho
Tran Chuc
Volpe & Koenig P.C.
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