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:
Jan. 16, 2001
Filed:
Dec. 30, 1997
Upamanyu Madhow, Urbana, IL (US);
Colin D. Frank, Chicago, IL (US);
Phillip D. Rasky, Buffalo Grove, IL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
Method and apparatus for completely suppressing interference vectors in a DS-CDMA communication system (,). Receiver circuits (,) are assigned (,) to multipath from sectors both in soft handoff and not in soft handoff with the receiver. For each receiver circuit, a set of traffic channels present on the sector's signal is determined (,). For each receiver circuit, the interference is ranked (,) according to predetermined interference criteria. A set of interference vectors is selected (,) from the ranked lists of interference and an orthogonal projection is computed (,) of the receiver's desired code or Walsh code relative to the selected set of interference vectors. The receiver circuit then uses the orthogonal projection in its correlator to despread (,) received data.