Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Patent
1997-09-30
2000-04-18
Bost, Dwayne D.
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
455441, 455436, H04Q 720
Patent
active
060525983
ABSTRACT:
The approximate position of a mobile station in a cell can be predicted by measuring the signal strength between the mobile station and the base station of the cell in which it is located and the base stations of the neighboring cells. After a series of instantaneous signal strength measurements have been collected, the velocity and direction of the mobile unit can be determined. Based on the velocity and direction of the mobile unit, future locations of the mobile unit can be predicted including the projected signal strength between the mobile station and the base stations of the cell in which it is located and neighboring cells. Analyzing the projected signal strength values, the time when the mobile unit will require handover to a neighboring cell can be determined and if desired, resources in a neighboring cell can be allocated in anticipation of the mobile unit being handed over to that cell. New signal strength measurements are periodically collected and new projections are made to increase the accuracy of the estimate of when handover will occur and to what neighboring cell.
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Agrawal Dharma P.
Agrawal Prathima
Rudrapatna Ashok N.
AT&T Corp
Bost Dwayne D.
Gelin Jean
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