Activating interference signal rejection filter path based on detection of an interference signal in a wireless distribution system (wds)

A method for detecting a predefined interference signal in a radio frequency (RF) signal in a wireless distribution system (WDS), comprising:

• receiving and filtering the RF signal to generate a first sample RF signal;
• measuring and recording a first power level of the first sample RF signal;
• measuring and recording a second power level of the received RF signal;
• determining a measured power level of the predefined interference signal by subtracting the measured second power level from the measured first power level;
• determining that the predefined interference signal is present in the RF signal if the measured power level of the predefined interference signal is higher than a predefined power threshold;
• and
• determining that the predefined interference signal is absent from the RF signal if the measured power level of the predefined interference signal is lower than or equal to the predefined power threshold.

A wireless distribution system (WDS), comprising:

• a plurality of optical communications mediums;
• and
• a plurality of remote units comprising a plurality of electrical-to-optical (E/O) converters and coupled to the plurality of optical communications mediums, the plurality of remote units configured to:
• receive the plurality of downlink communications signals via the plurality of optical communications mediums;
• and
• communicate the plurality of uplink communications signals via the plurality of optical communications mediums;
• wherein each of the plurality of remote units comprises a filter path selection system that comprises:
• a filter path selection circuit, comprising:
• an interference rejection filter path comprising a first radio frequency (RF) filter, the first RF filter configured to:
• receive an RF signal from a first filter path input provided in the interference rejection filter path and communicatively coupled to one or more client devices in the WDS;
• and
• filter the received RF signal at a first rejection level to generate a first filter path output signal;
• a pass filter path comprising a second RF filter, the second RF filter configured to:
• receive the RF signal from a second filter path input provided in the pass filter path and communicatively coupled to the one or more client devices;
• and
• filter the received RF signal at a second rejection level lower than the first rejection level to generate a second filter path output signal;
• and
• a controller configured to:
• determine whether the RF signal comprises a predefined interference signal based on a measured power level of the predefined interference signal;
• couple the RF signal to the first filter path input of the interference rejection filter path if the measured power level of the predefined interference signal is higher than a predefined power threshold;
• and
• couple the RF signal to the second filter path input of the pass filter path if the measured power level of the predefined interference signal is lower than or equal to the predefined power threshold;
• and
• a power measurement circuit comprising a power detector, the power detector configured to:
• determine the measured power level of the predefined interference signal in the RF signal;
• and
• provide the measured power level of the predefined interference signal to the controller.