System and method to obtain calibration data using estimation techniques

A method of determining calibration data of a candidate location in a non-calibrated sub-region, in a calibrated region the method comprising:

• determining the candidate location in the non-calibrated region to estimate calibration data;
• determining a varying power function of signal power received from at least one neighboring base station to represent calibration data of at least a portion of the calibrated geographical region adjacent to the non-calibrated sub-region;
• and
• estimating the calibration data at the candidate location based on the function.

A method of determining calibration data of a candidate location in a non-calibrated sub-region, in a calibrated geographic region, the method comprising:

• determining the candidate location in the non-calibrated region to estimate calibration data;
• determining a varying power function of signal powers received from a plurality of neighboring base stations to represent calibration data of at least a portion of the calibrated geographical region adjacent to the non-calibrated sub-region;
• determining at least one lowest signal power level of the plurality of signal power levels received;
• omitting the signal power of the base station that transmitted the lowest signal power level from the varying power function;
• and
• estimating the calibration data at the candidate location based on the function.

A method of determining calibration data of a candidate location in a non-calibrated sub-region, in a calibrated geographic region, the method comprising:

• determining the candidate location in the non-calibrated region to estimate calibration data;
• obtain calibration data for the calibrated geographical region within communication range of the candidate location;
• determining a first function to represent at least a first portion of the calibration data of the calibrated geographical region;
• determining a second function to represent at least a second portion of the calibration data of the calibrated geographical region, where the second portion is different from the first portion;
• and
• estimating the calibration data at the candidate location based on the first and second functions.