Wireless LAN communication device, relevant signal processing circuit, and method thereof

摘要

A wireless LAN communication device includes an amplifying circuit, an interference detection circuit, a false alarm counting circuit, and a control circuit. The amplifying circuit is configured to operably provide a gain to wireless signals. The interference detection circuit is configured to operably detect adjacent channel interference signals to generate a detection result. The false alarm counting circuit is configured to operably calculate a number of false alarms incurred by the adjacent channel interference signals. The control circuit is configured to operably configure the gain of the amplifying circuit according to the detection result and the number of false alarms.

主权项

1. A wireless LAN communication device, comprising:
an amplifying circuit configured to operably provide a gain to a first wireless signal; an interference detection circuit configured to operably detect adjacent channel interference signals of the first wireless signal to generate a detection result; a signal strength calculating circuit configured to operably calculate a signal strength of the first wireless signal; a false alarm counting circuit configured to operably calculate a number of false alarms incurred by the adjacent channel interference signals; and a control circuit configured to operably configure the gain of the amplifying circuit according to the detection result and the number of false alarms; wherein the control circuit decreases the gain of the amplifying circuit when the signal strength of the first wireless signal is greater than a first signal strength threshold, the detection result indicates a presence of the adjacent channel interference signals, and the number of false alarms is greater than a false alarm threshold.