Method, system and device for positioning mobile terminal
First Claim
1. A method for positioning a mobile terminal, comprising:
- instructing, by a serving base station or an upper level relay, a measurement of a transmission time of a positioning signal to two relays in a serving cell; and
calculating, by the serving base station or the upper level relay, a position of the mobile terminal according to the transmission time of the positioning signal measured by at least one of the two relays, wherein instructing the measurement of the transmission time of the positioning signal comprises;
allocating at least one of a preamble sequence and a reference signal in a downlink frame, andsending at least one of the preamble sequence and the reference signal having information of the resource for the positioning signal to the mobile terminal to determine a timeslot for the positioning signal in the mobile terminal.
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Accused Products
Abstract
This invention provides a method, system and device for positioning a mobile terminal. The method includes: instructing, by a serving base station or an upper level relay, measuring a transmission time of a positioning signal with the mobile terminal, and instructing two relays in a serving cell to measure the transmission time of the positioning signal with the mobile terminal; and calculating, by the serving base station or the upper level relay, a position of the mobile terminal according to the transmission time of the positioning signal, the position of the serving base station or the upper level relay and the position of the two relays. The method, system and device provided by the present invention can reduce communication overhead in mobile terminal positioning, and improve the positioning accuracy of mobile terminal positioning.
14 Citations
22 Claims
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1. A method for positioning a mobile terminal, comprising:
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instructing, by a serving base station or an upper level relay, a measurement of a transmission time of a positioning signal to two relays in a serving cell; and calculating, by the serving base station or the upper level relay, a position of the mobile terminal according to the transmission time of the positioning signal measured by at least one of the two relays, wherein instructing the measurement of the transmission time of the positioning signal comprises; allocating at least one of a preamble sequence and a reference signal in a downlink frame, and sending at least one of the preamble sequence and the reference signal having information of the resource for the positioning signal to the mobile terminal to determine a timeslot for the positioning signal in the mobile terminal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 19, 20, 21)
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12. A system for positioning a mobile terminal, comprising:
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the mobile terminal, two relays in a serving cell, and a serving base station or an upper level relay, wherein the serving base station or the upper level relay is configured to; instruct a measurement of a transmission time of a positioning signal to instruct to the two relays, allocate at least one of a preamble sequence and a reference signal in a downlink system frame, and send at least one of the preamble sequence and the reference signal having information of the resource for the positioning signal to the mobile terminal to determine a timeslot for the positioning signal in the mobile terminal, obtain the transmission time of the positioning signal, and measure a position of the mobile terminal by performing a calculation according to the obtained transmission time of the positioning signal measured by the two relays, wherein the two relays are configured to measure the transmission time of the positioning signal with the mobile terminal according to the instruction from the serving base station or the upper level relay; and the mobile terminal is configured to measure the transmission time of the positioning signal with the serving base station or the upper level relay and the two relays respectively according to the instruction from the serving base station or the upper level relay. - View Dependent Claims (13, 14, 15, 22)
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16. A relay for positioning a mobile terminal, comprising:
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a transceiver unit configured to receive at least one of a preamble sequence and a reference signal having information of a resource for a positioning signal, receive a sent positioning signal, at a timeslot determined based on the at least one of the preamble sequence and the reference signal, according to an instruction from a serving base station or an upper level relay; and a positioning unit configured to measure a transmission time of the positioning signal with the mobile terminal, and send the transmission time of the positioning signal to the serving base station or the upper level relay. - View Dependent Claims (17, 18)
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Specification