Frequency band state determining method and related device

An apparatus comprising:

• a memory configured to store instructions;
• and one or more processors coupled to the memory and configured to execute the instructions to cause the apparatus to:
• receive a radio frequency signal;
• determine an intermediate frequency signal based on an oscillation signal and the radio frequency signal, wherein the oscillation signal belongs to a frequency band;
• perform first processing on the intermediate frequency signal comprising sampling the intermediate frequency signal to obtain a set of first sampling points and a plurality of second sampling points that are a subset of the set of first sampling points;
• determine a first detection result by comparing a first reference value with a value of a ratio of a quantity of the second sampling points to a quantity of the first sampling points,
• wherein each second sampling point is a sampling point having an amplitude greater than a second reference value, or having a power greater than a third reference value;
• determine the first detection result indicates the frequency band is in a busy state;
• perform second processing on the intermediate frequency signal to determine a second detection result in response to determining the frequency band is in the busy state,
• wherein the second detection result indicates an operational state of the frequency band, and
• wherein the operational state includes information characterizing interference of the frequency band;
• and
• output the second detection result.

A method, applied to an apparatus, wherein the method comprises:

• receiving a radio frequency signal;
• determining an intermediate frequency signal based on an oscillation signal and the radio frequency signal, wherein the oscillation signal belongs to a first frequency band;
• performing first processing on the intermediate frequency signal to determine a first detection result, wherein the first processing comprises:
• sampling the intermediate frequency signal to obtain a plurality of first sampling points;
• and
• determining the first detection result by comparing a ratio of a quantity of second sampling points to a quantity of the plurality of the first sampling points with a fourth threshold,
• wherein an amplitude of each of the quantity of second sampling points is greater than a fifth threshold in the plurality of the first sampling points, or
• wherein power of each of the second sampling points is greater than a sixth threshold in the plurality of the first sampling points;
• determining the first detection result indicates the first frequency band is in a busy state, including determining the ratio of the quantity of the second sampling points to the quantity of the plurality of first sampling points is greater than the fourth threshold;
• in response to determining the first frequency band is in the busy state, performing second processing on the intermediate frequency signal to determine a second detection result;
• and
• determining a state of the first frequency band based on the second detection result;
• and
• in response to determining a state of the first frequency band based on the second detection result, outputting the determined state of the first frequency band.