Method and apparatus of low power energy detection for a WLAN

Details Method and apparatus of low power energy detection for a WLAN Method and apparatus of low power energy detection for a WLAN

2004-05-26

2008-12-30

Le, John H (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Electrical signal parameter measurement system

C370S338000, C370S342000, C375S346000, C455S063100, C455S126000, C455S266000, C455S423000

Reexamination Certificate

active

07472027

ABSTRACT:
A method and implementation disclosed for detecting interference. A state machine controller is provided for establishing an interference detection cycle including a power sample period and a periodic sampling interval. A receiver component, responsive to the state machine controller, performs an energy measurement at a predetermined wireless band during the power sample period. A threshold comparator determines whether the energy measurement exceeds a predetermined threshold. A processing implementation processes the energy measurement to determine whether it corresponds to interference on the predetermined wireless band, if the measurement exceeds the predetermined threshold. A deactivating implementation is used to instruct the state machine controller to await the next power sample period, if the energy measurement does not exceed the predetermined threshold.

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