| 摘要 |
A communication base station includes: a satellite-time information generating device for continuously generating satellite-time information representative of a satellite-time that is a time of a positioning satellite on the basis of the satellite signal; a satellite-orbit information generating device for generating satellite-orbit information at a time interval regulated by an effective time period of the satellite-orbit information representative of an orbit of the positioning satellite when generating the satellite-time information; a satellite-time information transmitting device for sending the satellite-time information to the terminal; a positioning-auxiliary information transmitting device for sending positioning auxiliary information including the satellite-orbit information to the terminal; and the terminal includes: a satellite-time information acquiring means device; a positioning-auxiliary information acquiring device; and a positioning device for locating a position of the terminal on the basis of a plurality of the satellite signals from the positioning satellites by use of the satellite-time information and the satellite-orbit information.
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