Method for positioning mobile station and repeater thereof
First Claim
1. A method for positioning a mobile station, comprising:
- a. instructing a serving base station to measure Round Trip Time (RTT) between the serving base station and the mobile station, when a positioning request from the mobile station is received in a mobile communication network, receiving a measurement result reported from the serving base station, and at the same time sending a measurement control message to the mobile station;
b. determining all repeaters that take the serving base station as a donating base station, configuring auxiliary positioning parameters for the repeaters, and controlling transmission of auxiliary positioning signals from the repeaters to the mobile station;
c. measuring, in the mobile station, Time Differences of Arrival (TDOAs) between the base stations and the repeaters according to the measurement control message sent from the mobile communication network and the auxiliary positioning signals sent from the repeaters, and reporting TODA measurement results to the mobile communication network; and
d. determining a position of the mobile station by estimating, in the mobile communication network, the position of the mobile station according to received RTT between the serving base station and the mobile station as well as TODAs between the base stations and the repeaters.
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Reexamination
Accused Products
Abstract
The present invention relates to a method for positioning a mobile station and a repeater thereof. Said method comprises: the mobile communication network, when receiving a positioning request from a mobile station, instructing repeaters to send auxiliary positioning signals, and the mobile station performs measurement according to the received auxiliary positioning signals sent from the repeaters and downlink signals sent from the base station, and then estimating the position of the mobile station according to the measurement results, and thereby implementing the positioning of the mobile station. Said repeater is implemented through adding an auxiliary positioning unit in the downlink processing channel of a traditional repeater; said auxiliary positioning unit comprises a communication module, a frame timing recovery module, a timing control module, and a pilot modulating module. The present invention achieves the object of improving the accuracy of positioning the mobile station within the coverage area of repeaters; in addition, the repeater with auxiliary positioning function according to the present invention is simple to be implemented and doesn'"'"'t affect the structure and signaling flow of the traditional mobile station.
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Citations
20 Claims
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1. A method for positioning a mobile station, comprising:
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a. instructing a serving base station to measure Round Trip Time (RTT) between the serving base station and the mobile station, when a positioning request from the mobile station is received in a mobile communication network, receiving a measurement result reported from the serving base station, and at the same time sending a measurement control message to the mobile station; b. determining all repeaters that take the serving base station as a donating base station, configuring auxiliary positioning parameters for the repeaters, and controlling transmission of auxiliary positioning signals from the repeaters to the mobile station; c. measuring, in the mobile station, Time Differences of Arrival (TDOAs) between the base stations and the repeaters according to the measurement control message sent from the mobile communication network and the auxiliary positioning signals sent from the repeaters, and reporting TODA measurement results to the mobile communication network; and d. determining a position of the mobile station by estimating, in the mobile communication network, the position of the mobile station according to received RTT between the serving base station and the mobile station as well as TODAs between the base stations and the repeaters. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A repeater for implementing the function of positioning the mobile station, comprising;
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a downlink processing channel and an uplink processing channel, wherein said downlink processing channel includes an added auxiliary positioning unit, a communication module operable to receive signals carrying auxiliary positioning parameters sent from a mobile communication network; a frame timing recovery module operable to receive downlink signals from a base station, process the signals to obtain a frame synchronization signal, and send said frame synchronization signal to a timing control module and a pilot modulating module, respectively; the timing control module operable to receive the frame synchronization signal sent from the frame timing recovery module, and generate and send a pulse sequence to the pilot modulating module, wherein the pilot modulating module, which receives the frame synchronization signal sent from the frame timing recovery module and the pulse sequence sent from the timing control module, is operable to generate and send auxiliary positioning signals to the mobile station. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification