Positioning tag operation method and positioning system operation method

A positioning system operation method used in a positioning system, wherein the positioning system operates according to positioning periods and comprises a plurality of base stations, a positioning tag and a positioning server, the positioning system operation method comprising:

• synchronizing the base stations according to a time synchronization signal transmitted and received in each of the positioning periods among the base station;
• setting the positioning tag in an initializing state, so as to select an available positioning time interval within each of the positioning periods as a selected positioning time interval and broadcast a connection request signal in the selected positioning time interval by the positioning tag;
• receiving the time synchronization signal from at lease one of the base stations of the positioning system by the positioning tag;
• determining that the time synchronization signal comprises information of an assigned positioning time interval within each of the positioning periods and the assigned positioning time interval corresponds to the positioning tag by the positioning tag, so as to set the positioning tag in a positioning state according to the assigned positioning time interval and stop receiving the time synchronization signal;
• broadcasting a positioning signal in the assigned positioning time interval within each of the positioning periods, and stopping broadcasting the positioning signal in the time other than the assigned positioning time interval within each of the positioning periods by the positioning tag in the positioning state;
• receiving the positioning signal by the base stations to generate time information respectively;
• and
• receiving the time information and calculating a position of the positioning tag accordingly by the positioning server.