DEVICE AND METHOD OF ESTIMATING LOCATION OF TERMINAL USING SEQUENCES TRANSMITTED FROM BASE STATIONS
First Claim
1. A location estimating method used in a serving base station, the method comprising:
- receiving information related to a mixture of unique sequences received by a terminal, in response to the unique sequences being transmitted from adjacent base stations;
extracting components respectively corresponding to the adjacent base stations from the mixture of the unique sequences received by the terminal; and
estimating a location of the terminal based on the components respectively corresponding to the adjacent base stations.
1 Assignment
0 Petitions
Accused Products
Abstract
A terminal receives a unique sequence from each of at least two base stations, and transmits a mixture of quantized unique sequences to a serving base station. The serving base station extracts components respectively corresponding to base stations from the mixture of the quantized unique sequences, and estimates a location of a terminal based on the extracted components. The serving base station may calculate a received signal strength or a delay for each of the unique sequences received by the terminal, based on the extracted components, and estimate the location of the terminal based on the received signal strength or the delay. In addition, the terminal may estimate its own location by performing an algorithm used by the serving base station.
29 Citations
21 Claims
-
1. A location estimating method used in a serving base station, the method comprising:
-
receiving information related to a mixture of unique sequences received by a terminal, in response to the unique sequences being transmitted from adjacent base stations; extracting components respectively corresponding to the adjacent base stations from the mixture of the unique sequences received by the terminal; and estimating a location of the terminal based on the components respectively corresponding to the adjacent base stations. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A location estimating method used in a terminal, the method comprising:
-
receiving a location estimation request from a serving base station; receiving unique sequences transmitted from adjacent base stations in response to the reception of the location estimation request; and transmitting information related to a mixture of the received unique sequences to the serving base station. - View Dependent Claims (12, 13)
-
-
14. A location estimating method used in a terminal, the method comprising:
-
receiving unique sequences transmitted from at least two base stations; extracting components respectively corresponding to the at least two base stations from a mixture of the unique sequences received by the terminal; and estimating a location of the terminal based on the components respectively corresponding to the base stations. - View Dependent Claims (15, 16)
-
-
17. A computer-readable storage medium storing a program to perform a location estimating method in a serving base station, comprising instructions to cause a computer to:
-
receive information related to a mixture of unique sequences received by a terminal, in response to the unique sequences being transmitted from adjacent base stations; extract components respectively corresponding to the adjacent base stations from the mixture of the unique sequences received by the terminal; and estimate a location of the terminal based on the components respectively corresponding to the adjacent base stations.
-
-
18. A location estimating device used in a serving base station, the device comprising:
-
a receiving unit to receive information related to a mixture of unique sequences received by a terminal, in response to the unique sequences being transmitted from adjacent base stations; an extracting unit to extract components respectively corresponding to the adjacent base stations from the mixture of the unique sequences received by the terminal; and an estimating unit to estimate a location of the terminal based on the components respectively corresponding to the adjacent base stations. - View Dependent Claims (19, 20)
-
-
21. A location estimating device used in a terminal, the device comprising:
-
a request processing unit to process a location estimation request from a serving base station; a sequence receiving unit to receive unique sequences transmitted from adjacent base stations in response to the reception of the location estimation request; and a transmitting unit to transmit information related to a mixture of the received unique sequences to the serving base station.
-
Specification