Positioning system
First Claim
1. A positioning system, asynchronous between communication base stations, having a communication base station capable of receiving a satellite signal that is a signal from a positioning satellite and a terminal capable of communicating with the communication base station, the communication base station comprising:
- satellite-time information generating means for continuously generating satellite-time information representative of a satellite-time that is a time of the positioning satellites on the basis of the satellite signal;
satellite-orbit information generating means 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;
satellite-time information transmitting means for sending the satellite-time information to the terminal;
positioning-auxiliary information transmitting means for sending positioning auxiliary information including the satellite-orbit information to the terminal; and
the terminal comprising;
satellite-time information acquiring means for acquiring the satellite-time information from the communication base station;
positioning-auxiliary information acquiring means for acquiring the positioning auxiliary information from the communication base station; and
positioning means 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.
1 Assignment
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Accused Products
Abstract
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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Citations
8 Claims
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1. A positioning system, asynchronous between communication base stations, having a communication base station capable of receiving a satellite signal that is a signal from a positioning satellite and a terminal capable of communicating with the communication base station,
the communication base station comprising: -
satellite-time information generating means for continuously generating satellite-time information representative of a satellite-time that is a time of the positioning satellites on the basis of the satellite signal;
satellite-orbit information generating means 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;
satellite-time information transmitting means for sending the satellite-time information to the terminal;
positioning-auxiliary information transmitting means for sending positioning auxiliary information including the satellite-orbit information to the terminal; and
the terminal comprising;
satellite-time information acquiring means for acquiring the satellite-time information from the communication base station;
positioning-auxiliary information acquiring means for acquiring the positioning auxiliary information from the communication base station; and
positioning means 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. - View Dependent Claims (2)
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3. A communication base station on a communication network asynchronous between communication base stations, the communication base station comprising:
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satellite-time information generating means for generating continuously satellite-time information representative of a satellite-time that is a time of a positioning satellite, on the basis of a satellite signal from the positioning satellite;
satellite-orbit information generating means 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;
satellite-time information transmitting means for sending the satellite-time information to the terminal; and
positioning-auxiliary information transmitting means for sending positioning auxiliary information including the satellite-orbit information to the terminal.
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4. A positioning system, asynchronous between communication base stations, having a communication base station capable of receiving a satellite signal that is a signal from a positioning satellite and a terminal capable of communicating with the communication base station,
the communication base station comprising: -
communication-information transmitting means for sending communication information constituted by a plurality of frames to the terminal;
satellite-time information generating means for continuously generating satellite-time information representative of a satellite-time that is a time of the positioning satellite for each of the frames of the communication information on the basis of the satellite signal;
satellite-orbit information generating means 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;
requested-satellite-time information transmitting means that sends, to the terminal, satellite-time information as to the frame requested from the terminal;
positioning-auxiliary information transmitting means for sending positioning auxiliary information including the satellite-orbit information; and
the terminal comprising;
communication information receiving means for receiving the communication information from the communication base station;
satellite-time information acquiring means for acquiring the satellite-time information for the frame received immediately before positioning, from the communication base station;
positioning-auxiliary information acquiring means for acquiring the positioning auxiliary information from the communication base station; and
positioning means for locating a position of the terminal on the basis of the satellite signals from a plurality of the positioning satellites by use of the satellite-time information and the satellite-orbit information.
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5. A communication base station on a communication network asynchronous between communication base stations, the communication base station comprising:
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communication information transmitting means for sending communication information constituted by a plurality of frames, to the terminal;
satellite-time information generating means for continuously generating, satellite-time information representative of a satellite-time that is a time of a positioning satellites for each of the frames of the communication information on the basis of a satellite signal;
satellite-orbit information generating means 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;
requested-satellite-time information transmitting means for sending the satellite-time information as to the frame requested from the terminal, to the terminal; and
positioning-auxiliary information transmitting means for sending positioning auxiliary information including the satellite-orbit information to the terminal.
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6. A control method for a communication base station, comprising the steps of:
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generating continuously satellite-time information representative of a satellite-time that is a time of a positioning satellite on the basis of a satellite signal that is a signal from the positioning satellite, by the communication base station on a communication network asynchronous between communication base stations;
generating satellite-orbit information at a time interval regulated by an effective time period of satellite-orbit information representative of an orbit of the positioning satellite when generating the satellite-time information, by the communication base station;
sending the satellite-time information to the terminal, by the communication base station; and
sending positioning auxiliary information including the satellite-orbit information to the terminal, by the communication base station.
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7. A communication base station control program allowing a computer to execute the steps of:
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generating continuously satellite-time information representative of a satellite-time that is a time of a positioning satellite on the basis of a satellite signal that is a signal from the positioning satellite, by a communication base station on a communication network asynchronous between communication base stations;
generating satellite-orbit information at a time interval regulated by an effective time period of satellite-orbit information representative of an orbit of the positioning satellite when generating the satellite-time information, by the communication base station;
sending the satellite-time information to the terminal, by the communication base station; and
sending positioning auxiliary information including the satellite-orbit information to the terminal, by the communication base station.
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8. A computer-readable recording medium recording a control program for a communication base station, allowing a computer to execute the steps of:
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generating continuously satellite-time information representative of a satellite-time that is a time of a positioning satellite on the basis of a satellite signal that is a signal from the positioning satellite, by a communication base station on a communication network asynchronous between communication base stations;
generating satellite-orbit information at a time interval regulated by an effective time period of satellite-orbit information representative of an orbit of the positioning satellite when generating the satellite-time information, by the communication base station;
sending the satellite-time information to the terminal, by the communication base station; and
sending positioning auxiliary information including the satellite-orbit information to the terminal, by the communication base station.
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Specification