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:
Jul. 15, 2008
Filed:
Apr. 16, 2004
Roberto Padovani, San Diego, CA (US);
Paul E. Bender, San Diego, CA (US);
Ahmad Jalali, San Diego, CA (US);
Bruce Judson, San Diego, CA (US);
Charles E. Wheatley, Iii, Del Mar, CA (US);
Roberto Padovani, San Diego, CA (US);
Paul E. Bender, San Diego, CA (US);
Ahmad Jalali, San Diego, CA (US);
Bruce Judson, San Diego, CA (US);
Charles E. Wheatley, III, Del Mar, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
In a CDMA data communication system capable of variable rate transmission, utilization of beam switching techniques decreases the average interference caused by transmissions of a base station to subscriber stations within a cell, and in neighboring cells. Base stations utilize multiple transmit antennas, each transmitting signals at controlled amplitudes and phases, to form transmit signal corresponding to sector divisions. Data and reference signals are transmitted along sector division beams that alternate according to fixed time slots in order to increase system capacity and data rates by maximizing carrier-to-interference ratios (C/I) measured at subscriber stations.