System and method for terminal location
First Claim
1. A terminal positioning system, comprising:
- a first base station, a second base station and a terminal to be positioned which is located in an overlapped coverage area of the first base station and the second base station, and the system further comprises;
a first distance acquiring module, which is configured to acquire a first distance between the first base station and the terminal according to first time offset information of the terminal, wherein, the first time offset information is time offset information, obtained in a process of the first base station ranging for the terminal, of the terminal relative to the first base station;
a second distance acquiring module, which is configured to acquire a second distance between the second base station and the terminal according to second time offset information of the terminal, wherein, the second time offset information is time offset information, obtained in a process of the second base station ranging for the terminal, of the terminal relative to the second base station;
an angle acquiring module, which is configured to acquire a first signal arrival angle of the terminal relative to the first base station and a second signal arrival angle of the terminal relative to the second base station according to the first distance, the second distance and a third distance between the first base station and the second base station;
a first positioning module, which is configured to obtain an initial location of the terminal according to the first signal arrival angle and the second signal arrival angle; and
a second positioning module, which is configured to calibrate the initial location of the terminal to determine an accurate location of the terminal.
1 Assignment
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Accused Products
Abstract
A terminal positioning system and terminal positioning method are provided. The system includes: a first distance acquiring module acquiring a first distance between a first base station and a terminal located in an overlapped coverage area of the first base station and a second base station according to first time offset information of the terminal; a second distance acquiring module acquiring a second distance between the second base station and the terminal according to second time offset information; an angle acquiring module acquiring a first signal arrival angle of the terminal relative to the first base station and a second signal arrival angle of the terminal relative to the second base station; a first positioning module obtaining an initial location of the terminal according to the first and second signal arrival angles, and a second positioning module determining the accurate location of the terminal.
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Citations
15 Claims
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1. A terminal positioning system, comprising:
- a first base station, a second base station and a terminal to be positioned which is located in an overlapped coverage area of the first base station and the second base station, and the system further comprises;
a first distance acquiring module, which is configured to acquire a first distance between the first base station and the terminal according to first time offset information of the terminal, wherein, the first time offset information is time offset information, obtained in a process of the first base station ranging for the terminal, of the terminal relative to the first base station; a second distance acquiring module, which is configured to acquire a second distance between the second base station and the terminal according to second time offset information of the terminal, wherein, the second time offset information is time offset information, obtained in a process of the second base station ranging for the terminal, of the terminal relative to the second base station; an angle acquiring module, which is configured to acquire a first signal arrival angle of the terminal relative to the first base station and a second signal arrival angle of the terminal relative to the second base station according to the first distance, the second distance and a third distance between the first base station and the second base station; a first positioning module, which is configured to obtain an initial location of the terminal according to the first signal arrival angle and the second signal arrival angle; and a second positioning module, which is configured to calibrate the initial location of the terminal to determine an accurate location of the terminal. - View Dependent Claims (2, 3, 4, 5, 15)
- a first base station, a second base station and a terminal to be positioned which is located in an overlapped coverage area of the first base station and the second base station, and the system further comprises;
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6. A terminal positioning method applied in a terminal positioning system, and the terminal positioning system comprises:
- a first base station, a second base station and a terminal to be positioned which is located in an overlapped coverage area of the first base station and the second base station;
the terminal positioning method comprises the following steps;the terminal positioning system acquiring a first distance between the first base station and the terminal according to first time offset information of the terminal, wherein, the first time offset information is time offset information, obtained in a process of the first base station ranging for the terminal, of the terminal relative to the first base station; the terminal positioning system acquiring a second distance between the second base station and the terminal according to second time offset information of the terminal, wherein, the second time offset information is time offset information, obtained in a process of the second base station ranging for the terminal, of the terminal relative to the second base station; the terminal positioning system acquiring a first signal arrival angle of the terminal relative to the first base station and a second signal arrival angle of the terminal relative to the second base station according to the first distance, the second distance and a third distance between the first base station and the second base station; the terminal positioning system obtaining an initial location of the terminal according to the first signal arrival angle and the second signal arrival angle; and the terminal positioning system calibrating the initial location of the terminal to determine an accurate location of the terminal. - View Dependent Claims (7, 8, 9, 10)
- a first base station, a second base station and a terminal to be positioned which is located in an overlapped coverage area of the first base station and the second base station;
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11. A terminal positioning apparatus, applied to position a terminal located in an overlapped coverage area of a first base station and a second base station, wherein, the terminal positioning apparatus comprises:
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a first distance acquiring module, which is configured to acquire a first distance between the first base station and the terminal according to first time offset information of the terminal, wherein, the first time offset information is time offset information, obtained in a process of the first base station ranging for the terminal, of the terminal relative to the first base station; a second distance acquiring module, which is configured to acquire a second distance between the second base station and the terminal according to second time offset information of the terminal, wherein, the second time offset information is time offset information, obtained in a process of the second base station ranging for the terminal, of the terminal relative to the second base station; an angle acquiring module, which is configured to acquire a first signal arrival angle of the terminal relative to the first base station and a second signal arrival angle of the terminal relative to the second base station according to the first distance, the second distance and a third distance between the first base station and the second base station; a first positioning module, which is configured to obtain an initial location of the terminal according to the first signal arrival angle and the second signal arrival angle; and a second positioning module, which is configured to calibrate the initial location of the terminal to determine an accurate location of the terminal. - View Dependent Claims (12, 13, 14)
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Specification