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:
Apr. 01, 2003
Filed:
Oct. 04, 1999
Applicant:
Inventor:
Stuart Dean, Kemptville, CA;
Assignee:
Nortel Networks Limited, St. Laurent, CA;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04Q 7/20 ; H04M 1/00 ;
U.S. Cl.
CPC ...
H04Q 7/20 ; H04M 1/00 ;
Abstract
The invention provides frequency reuse techniques to enable fractional frequency reuse to be achieved for various cellular radio deployment grids, even for high order modulation such as 16 QAM and 64 QAM by the use of controlled and coordinated notched antenna patterns. The technique allows all frequencies to be used in all cells, thus maximizing system capacity while minimizing and controlling adjacent cell interference by the use of notched antenna patterns.