System and Method for Tracking Position of a Mobile Unit Using Beacons in a Mobile Communication System
First Claim
1. A system for tracking position of a mobile unit in a mobile communication system, comprising a plurality of beacons installed within a cell coverage of a base station, each beacon having its sub-coverage and transmitting a pilot signal to the mobile unit in the sub-coverage;
- a base station controller for checking whether beacon information is included in a Pilot Strength Measurement Message (PSMM) signal upon receiving the PSMM signal from the mobile unit via a base transceiver station, the base station controller transmitting position information including the beacon information if the beacon information is included in the PSMM signal, the base station controller transmitting neighbor list information on base transceiver stations adjacent to the mobile unit if the beacon information is not included in the PSMM signal; and
a position-tracking device for extracting information on the corresponding beacon from its database by using the position information upon receiving the position information including the beacon information from the base station controller, the position-tracking device further tracking/determining the position of the mobile unit by using the information on the corresponding beacon, or for tracking/determining position of the mobile unit by a conventional position-tracking method by using the neighbor list information on the adjacent base transceiver stations upon receiving the neighbor list information on the base transceiver stations adjacent to the mobile unit from the base station controller.
2 Assignments
0 Petitions
Accused Products
Abstract
The present invention relates to a device for tracking the position of a mobile unit in a mobile communication system by using beacons, wherein each beacon has its own sub-coverage in the cell coverage of a base transceiver station (BTS). The present invention resolves the problem of the conventional network-based or handset-based position tracking methods. By using beacon information included in a Pilot Strength Measurement Message (PSMM) signal, the present invention increases the accuracy of position tracking to thereby improve the quality of supplemental services in the mobile communication system.
-
Citations
13 Claims
-
1. A system for tracking position of a mobile unit in a mobile communication system, comprising
a plurality of beacons installed within a cell coverage of a base station, each beacon having its sub-coverage and transmitting a pilot signal to the mobile unit in the sub-coverage; -
a base station controller for checking whether beacon information is included in a Pilot Strength Measurement Message (PSMM) signal upon receiving the PSMM signal from the mobile unit via a base transceiver station, the base station controller transmitting position information including the beacon information if the beacon information is included in the PSMM signal, the base station controller transmitting neighbor list information on base transceiver stations adjacent to the mobile unit if the beacon information is not included in the PSMM signal; and
a position-tracking device for extracting information on the corresponding beacon from its database by using the position information upon receiving the position information including the beacon information from the base station controller, the position-tracking device further tracking/determining the position of the mobile unit by using the information on the corresponding beacon, or for tracking/determining position of the mobile unit by a conventional position-tracking method by using the neighbor list information on the adjacent base transceiver stations upon receiving the neighbor list information on the base transceiver stations adjacent to the mobile unit from the base station controller. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A method for tracking position of a mobile unit in a communication system including the mobile unit, beacons, a base station controller and a position-tracking device, the method comprising:
-
checking whether beacon information is included in a Pilot Strength Measurement Message (PSMM) signal when the base station controller receives the PSMM signal from the mobile unit;
transmitting position information including the beacon information from the base station controller to the position-tracking device if the PSMM signal from the mobile unit contains the beacon information; and
extracting information on the corresponding beacon from the database of the position-tracking device when the position-tracking device receives the position information including the beacon information from the base station controller, and tracking/determining the position of the mobile unit using the information on the corresponding beacon. - View Dependent Claims (10, 11, 12, 13)
-
Specification