The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 24, 1998
Filed:
May. 29, 1997
Valentin Oprescu-Surcobe, Northbrook, IL (US);
Scott Thomas Droste, Crystal Lake, IL (US);
Brian Chen, Singapore, SG;
Motorola, Inc., Schaumburg, IL (US);
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.