Total radiated power measurements of in-band channel frequencies based on beam directivity

An apparatus, comprising:

• at least one processor;
• and
• at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus at least to perform:
• determining, for a base station that transmits on an operating frequency, whether a radiation pattern of each of one or more neighboring frequencies is correlated with a radiation pattern of the operating frequency at least by determining that a respective characteristic of the radiation pattern of each of the one or more neighboring frequencies and of the radiation pattern of the operating frequency differ by not more than a predetermined amount based on a set of correlation test criteria comprising the following for a given one of the one or more neighboring frequencies:
• azimuth and elevation half-power angular ratio quantities of the radiation pattern of the given neighboring frequency match those of the operating frequency;
• measured azimuth and elevation half-power beam widths of the given neighboring frequency match those that are derived from half-power beam widths of operating frequency radiation patterns;
• and
• a product of measured azimuth and elevation half-power beam widths and directivity for the given neighboring frequency matches to a directivity-beam width product for the operating frequency;
• and
• computing, in response to a determination that the radiation pattern of each of the one or more neighboring frequencies is correlated with that of the operating frequency, a total radiated power estimate of each of the one or more neighboring frequencies by performing a beam-based directions procedure for the base station, and outputting the total radiated power estimates of each of the one or more neighboring frequencies.

A computer program product comprising a non-transitory computer-readable storage medium bearing computer program code embodied therein for use with a computer, the computer program code comprising:

• determining, for a base station that transmits on an operating frequency, whether a radiation pattern of each of one or more neighboring frequencies is correlated with a radiation pattern of the operating frequency at least by determining that a respective characteristic of the radiation pattern of each of the one or more neighboring frequencies and of the radiation pattern of the operating frequency differ by not more than a predetermined amount based on a set of correlation test criteria comprising the following for a given one of the one or more neighboring frequencies:
• azimuth and elevation half-power angular ratio quantities of the radiation pattern of the given neighboring frequency match those of the operating frequency;
• measured azimuth and elevation half-power beam widths of the given neighboring frequency match those that are derived from half-power beam widths of operating frequency radiation patterns;
• and
• a product of measured azimuth and elevation half-power beam widths and directivity for the given neighboring frequency matches to a directivity-beam width product for the operating frequency;
• and
• computing, in response to a determination that the radiation pattern of each of the one or more neighboring frequencies is correlated with that of the operating frequency, a total radiated power estimate of each of the one or more neighboring frequencies by performing a beam-based directions procedure for the base station, and outputting the total radiated power estimates of each of the one or more neighboring frequencies.