Method and device for implementation of adaptive frequency hopping by power spectral density

A wireless communication method, comprising:

• selecting a channel from a plurality of channels received via a first antenna in turn according to a channel map by a frequency hopping communication circuit to which the first antenna is coupled, so as to connect to a frequency hopping communication device;
• measuring by a power spectral density circuit a spectra of a bandwidth comprising all the channels of the frequency hopping communication circuit received via a second antenna coupled to the power spectral density circuit;
• generating power spectral density data based on the measured spectra, the power spectral density data comprising an interference power curve comprising a defined magnitude of power per channel frequency for each point on the interference power curve, where the magnitudes of power above a predefined power magnitude threshold of the curve correspond to greater interference than the magnitudes of power below the predefined power magnitude threshold;
• and
• updating the channel map according to the power spectral density data.

A wireless communication system, comprising:

• a frequency hopping communication circuit comprising a first radio frequency circuit, a first analog front end circuit, and a first baseband circuit, the frequency hopping circuit including a first channel map for selecting a channel from a plurality of channels in turn according to the first channel map to connect to a frequency hopping communication device, the frequency hopping communication circuit using non-power magnitude measuring methods to assess only all of the good channels of the plurality of channels to determine whether each of the good channels remains good or becomes bad before updating the first channel map;
• and
• a power spectral density circuit arranged external to and in parallel with the frequency hopping communication circuit, the power spectral density circuit comprising a second radio frequency circuit, a second analog front end circuit, and a second baseband circuit, the power spectral density circuit using power spectral density data to assess only all of the bad channels of the plurality of channels to determine whether the bad channels remain bad or become good, the power spectral density comprising an interference power curve comprising a defined magnitude of power per channel frequency, where the magnitudes of power above a predefined power magnitude threshold of the curve correspond to greater interference than the magnitudes of power below the predefined power magnitude threshold, wherein the frequency hopping communication circuit provides a second channel map in succession to the first channel map based on the assessments by the frequency hopping communication circuit and the power spectral density circuit.

A wireless transceiver, comprising:

• plural antennas;
• a frequency hopping communication circuit coupled to at least one of the plural antennas, the frequency hopping communication circuit including a channel map for selecting a channel from a plurality of channels in turn according to the channel map to connect to a frequency hopping communication device;
• and
• a power spectral density (PSD) circuit arranged in parallel to the frequency hopping communication circuit, the power spectral density circuit coupled to one or more other antennas of the plural antennas, the power spectral density circuit for measuring spectra of a bandwidth comprising all the channels of the frequency hopping communication circuit to generate power spectral density data, the power spectral density data comprising an interference power curve comprising a defined magnitude of power per channel frequency for each point on the interference power curve, where the magnitudes of power above a predefined power magnitude threshold of the curve correspond to greater interference than the magnitudes of power below the predefined power magnitude threshold.