Apparatus and method for determining position

A wireless position determining apparatus for determining a position, comprising:

• a measuring unit that measures a propagation delay tap of a signal received from a transmitting end through a channel;
• an extractor that extracts delay time spread information having various forms based on the propagation delay tap;
• and
• an obtaining and calculating unit that obtains a distance between transmission and reception ends based on the delay spread information and calculates a position of a receiving end based on the obtained distance between the transmission and reception ends.

A wireless position determining apparatus for determining a position, comprising:

• a measuring unit that measures a propagation delay tap of a signal received from a transmitting end through a channel;
• an extractor that extracts delay spread information having various forms based on the propagation delay tap;
• and
• an obtaining and calculating unit that obtains a distance between transmission and reception ends based on the delay spread information and calculates a position of a receiving end based on the obtained distance between the transmission and reception ends,
• wherein the delay spread information having various forms corresponds to one of a measurement which is a difference between a minimum delay value and a maximum delay value among the propagation delay taps of which receiving power is higher than a noise power level and is a threshold value or more, a measurement which is a weighted root mean square of absolute delay values of the propagation delay taps, and a measurement which is a relative weighted standard deviation of the delay values of the propagation delay taps.

A wireless position determining method for determining a position of a receiving end, comprising:

• measuring a propagation delay tap of a signal received from a transmitting end through a channel by a terminal of the receiving end;
• extracting delay time spread information having various forms based on the propagation delay tap;
• transmitting the delay spread information to the transmitting end;
• and
• receiving results of calculating a distance between transmission and reception ends corresponding to the delay spread information and the position of the receiving end.

A wireless position determining method for determining a position of a receiving end, comprising:

• measuring a propagation delay tap of a signal received from a transmitting end through a channel by a terminal of the receiving end;
• extracting delay spread information having various forms based on the propagation delay tap;
• transmitting the delay spread information to the transmitting end;
• and
• receiving results of calculating a distance between transmission and reception ends corresponding to the delay spread information and the position of the receiving end,
• wherein the delay spread information having various forms corresponds to one of a measurement which is a difference between a minimum delay value and a maximum delay value among the propagation delay taps of which receiving power is higher than a noise power level and is a threshold value or more, a measurement which is a weighted root mean square of absolute delay values of the propagation delay taps, and a measurement which is a relative weighted standard deviation of the delay values of the propagation delay taps.