Abstract: Systems and methods for mitigating broadband and/or Intermodulation (“IM”) interference. The methods comprise: monitoring performance of at least one demodulator performance metric of a communication device; detecting when the communication device is under or will be under an influence of IM interference based on a performance of the at least one demodulator performance metric; determining an improved level of gain to be applied to (i) a variable attenuator of the communication device or (ii) a variable gain low noise amplifier of the communication device; and selectively adjusting an amount of gain being applied by the variable attenuator or variable gain low noise amplifier based on the improved performance achieved with new level of attenuation.

Abstract: A system is for mapping an interior of a building. The system may include a mobile device having a PDR circuit configured to generate PDR positions as a user moves within the interior of the building, and a ranging circuit configured to generate ranging mapping data of the interior of the building as the user moves within the interior of the building. The system also may include a server configured to map the interior of the building and generate a location of the mobile device within the interior of the building based upon the PDR positions and the ranging mapping data from the mobile device.

Abstract: A system is for mapping an interior of a building. The system may include a mobile device having a PDR circuit configured to generate PDR positions as a user moves within the interior of the building, and a ranging circuit configured to generate ranging mapping data of the interior of the building as the user moves within the interior of the building. The system also may include a server configured to map the interior of the building and generate a location of the mobile device within the interior of the building based upon the PDR positions and the ranging mapping data from the mobile device.