Apparatus and method for measuring altitude of terminal

A method of measuring an altitude of a terminal, the method comprising:

• predicting a current reference atmospheric pressure by using previously received reference atmospheric pressures when a reference atmospheric pressure reception period is not generated;
• and
• measuring a current altitude by using the predicted reference atmospheric pressure and an atmospheric pressure measured by a barometer included in the terminal.

A method of measuring an altitude of a terminal, the method comprising:

• when a plurality of reference atmospheric pressures according to the position information of the terminal are received from a server, assigning a weight to each of the plurality of reference atmospheric pressures according to a relative distance between each of weather stations where the plurality of reference atmospheric pressures are measured and the terminal;
• and
• determining a reference atmospheric pressure by adding the plurality of reference atmospheric pressures according to the weight, and measuring a current altitude by using the determined reference atmospheric pressures and an atmospheric pressure measured by a barometer included in the terminal.

A method of measuring an altitude of a terminal, the method comprising:

• when a reference atmospheric pressure reception period is not generated and a position of the terminal escapes from a reference distance, transmitting position information of the terminal and a reference atmospheric pressure request to a server;
• and
• when a reference atmospheric pressure according the position information of the terminal is received from the server, measuring a current altitude by using the received reference atmospheric pressure and an atmospheric pressure measured by a barometer included in the terminal.