GNSS TERMINALS AUTOMATICALLY RETRIEVING AIDING DATA AND AIDING DATA SYSTEMS
First Claim
1. A Global Navigation Satellite System (GNSS) terminal, connected to an aiding data server through a wireless connection, comprising:
- an aiding data collector for sending an aiding data request to the aiding data server, and parsing aiding data sent by the aiding data server in response to the aiding data request; and
a GNSS receiver, coupled to the aiding data collector, for acquiring and/or tracking signal from at least one GNSS satellite according to the aiding data.
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Accused Products
Abstract
The invention provides an aiding data collecting method for a Global Navigation Satellite System (GNSS) terminal connected to an aiding data server through a wireless connection. Availability of an aiding data is first queried about. Whether the aiding data is in the GNSS terminal is then checked according to the response of the query. An aiding data request is then sent to the aiding data server. An aiding data sent by the aiding data server is then parsed in response to the aiding data request. Finally, the collected aiding data is sent to the GNSS terminal for acquiring and/or tracking satellite signal from at least one GNSS satellite.
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Citations
20 Claims
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1. A Global Navigation Satellite System (GNSS) terminal, connected to an aiding data server through a wireless connection, comprising:
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an aiding data collector for sending an aiding data request to the aiding data server, and parsing aiding data sent by the aiding data server in response to the aiding data request; and a GNSS receiver, coupled to the aiding data collector, for acquiring and/or tracking signal from at least one GNSS satellite according to the aiding data. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An aiding data collecting method for a Global Navigation Satellite System (GNSS) terminal connected to an aiding data server through a wireless connection, comprising:
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querying about the aiding data availability; checking whether the aiding data is in the GNSS terminal according to the response of the query; sending an aiding data request to the aiding data server, and parsing aiding data sent by the aiding data server in response to the aiding data request; and sending the collected aiding data to the GNSS terminal for acquiring and/or tracking satellite signal from at least one GNSS satellite. - View Dependent Claims (9, 10, 11, 12, 13)
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14. An aiding data system, subordinate to a Global Navigation Satellite System (GNSS), comprising:
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an aiding data server, parsing an aiding data request received from a GNSS terminal to generate aiding data comprising orbital parameters and health information of a predetermined number of visible GNSS satellites visible to the GNSS terminal, sorting the aiding data according to dilution of precision (DOP) values of the visible GNSS satellites, and sending the aiding data to the GNSS terminal in response to the aiding data request; and the GNSS terminal, connected to the aiding data server through a wireless connection, sending the aiding data request to the aiding data server, parsing the aiding data sent by the aiding data server, and tracking GNSS satellites according to the aiding data to generate a position of the GNSS terminal. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification