Location determination of a mobile device based on various parameters

An apparatus comprising:

• a memory configured to store location information;
• and
• a processor configured to
• calculate deviations for location information and environmental factor information at a mobile device based on pre-stored location information and pre-stored environmental information;
• calculate a confidence factor based on the calculated deviations;
• and
• determine the mobile device location based on the confidence factor;
• wherein the environmental factor information comprises at least one of luminosity, distance from walls, ceiling height of an indoor structure, indoor acoustic signatures dependent upon the distance from walls and ceiling height of the indoor structure, altitude, precipitation levels, allergen levels, and outdoor acoustic signatures dependent upon the altitude and precipitation levels;
• and
• wherein the pre-stored location information and pre-stored environmental information comprises data determined to be constant after readings gathered and recorded from successive events remain constant over a predefined time interval.

A non-transitory computer readable storage medium configured to store instructions that when executed causes a processor to:

• calculate deviations for location information and environmental factor information at a mobile device based on pre-stored location information and pre-stored environmental information;
• calculate a confidence factor based on the calculated deviations;
• and
• determine the mobile device location based on the confidence factor;
• wherein the environmental factor information comprises at least one of luminosity, distance from walls, ceiling height of an indoor structure, indoor acoustic signatures dependent upon the distance from walls and ceiling height of the indoor structure, altitude, precipitation levels, allergen levels, and outdoor acoustic signatures dependent upon the altitude and precipitation levels;
• and
• wherein the pre-stored location information and pre-stored environmental information comprises data determined to be constant after readings gathered and recorded from successive events remain constant over a predefined time interval.