Method for identifying a mobile unit in a wireless communication system
First Claim
1. In a wireless communication system, a method for identifying a mobile communication unit, the method comprising the steps of:
- receiving at a first base station having a first location, a widebeam signal from a first mobile communication unit having a second location;
measuring, by the first base station, a characteristic of the received widebeam signal to form a first widebeam characteristic;
receiving the widebeam signal at a second base station having a third location;
measuring, by the second base station, the characteristic of the received widebeam signal to form a second widebeam characteristic;
receiving, at the first base station, a narrowbeam signal from the first mobile communication unit;
measuring, by the first base station, a characteristic of the received narrowbeam signal to form a first narrowbeam characteristic;
receiving the narrowbeam signal at the second base station;
measuring, by the second base station, the characteristic of the received narrowbeam signal to form a second narrowbeam characteristic;
comparing the first widebeam characteristic and the first narrowbeam characteristic to form a first comparison value;
comparing the second widebeam characteristic and the second narrowbeam characteristic to form a second comparison value;
establishing a reference axis;
based on the first comparison value, the second comparison value, the first location, the second location, the third location, and the reference axis, determining a region associated with the narrowbeam signal;
identifying a second mobile communication unit within the region; and
forwarding an identity of the second mobile communication unit to the first mobile communication unit.
4 Assignments
0 Petitions
Accused Products
Abstract
The method operates in a wireless communication system, and includes receiving at a first base station having a first location, a widebeam signal from a first mobile communication unit having a second location; measuring, by the first base station, a characteristic of the received widebeam signal to form a first widebeam characteristic; receiving the widebeam signal at a second base station having a third location; measuring, by the second base station, the characteristic of the received widebeam signal to form a second widebeam characteristic; receiving, at the first base station, a narrowbeam signal from the first mobile communication unit; measuring, by the first base station, a characteristic of the received narrowbeam signal to form a first narrowbeam characteristic; receiving the narrowbeam signal at the second base station; measuring, by the second base station, the characteristic of the received narrowbeam signal to form a second narrowbeam characteristic; comparing the first widebeam characteristic and the first narrowbeam characteristic to form a first comparison value; comparing the second widebeam characteristic and the second narrowbeam characteristic to form a second comparison value; establishing a reference axis; based on the first comparison value, the second comparison value, the first location, the second location, the third location, and the reference axis, determining a region associated with the narrowbeam signal; identifying a second mobile communication unit within the region; and forwarding an identity of the second mobile communication unit to the first mobile communication unit.
74 Citations
20 Claims
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1. In a wireless communication system, a method for identifying a mobile communication unit, the method comprising the steps of:
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receiving at a first base station having a first location, a widebeam signal from a first mobile communication unit having a second location; measuring, by the first base station, a characteristic of the received widebeam signal to form a first widebeam characteristic; receiving the widebeam signal at a second base station having a third location; measuring, by the second base station, the characteristic of the received widebeam signal to form a second widebeam characteristic; receiving, at the first base station, a narrowbeam signal from the first mobile communication unit; measuring, by the first base station, a characteristic of the received narrowbeam signal to form a first narrowbeam characteristic; receiving the narrowbeam signal at the second base station; measuring, by the second base station, the characteristic of the received narrowbeam signal to form a second narrowbeam characteristic; comparing the first widebeam characteristic and the first narrowbeam characteristic to form a first comparison value; comparing the second widebeam characteristic and the second narrowbeam characteristic to form a second comparison value; establishing a reference axis; based on the first comparison value, the second comparison value, the first location, the second location, the third location, and the reference axis, determining a region associated with the narrowbeam signal; identifying a second mobile communication unit within the region; and forwarding an identity of the second mobile communication unit to the first mobile communication unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. In a wireless communication system, a method for identifying a mobile communication unit, the method comprising the steps of:
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establishing a line-of-sight between a first mobile communication unit and a second communication unit; determining a location of the first mobile communication unit; transmitting from the first mobile communication unit to a first base station having a first location, a widebeam signal; transmitting from the first mobile communication unit to a second base station having a second location, the widebeam signal; transmitting from the first mobile communication unit to the first base station, a narrowbeam signal; transmitting from the first mobile communication unit to the second base station, the narrowbeam signal; receiving at the first mobile communication unit from the first base station, a first comparison value, said first comparison value represents the comparison characteristics of the widebeam signal and the narrowbeam signal received at the first base station; receiving at the first mobile communication unit from the second base station, a second comparison value, said second comparison value represents the comparison of measured characteristics of the widebeam signal and the narrowbeam signal received at the second base station; based on the first comparison value, and the second comparison value, calculating a region associated with the narrowbeam signal; and receiving at the first mobile communication unit, an identity of the second mobile communication unit within the region. - View Dependent Claims (19, 20)
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Specification