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:
Jun. 10, 2008
Filed:
Jan. 24, 2003
Michael Philip Fitton, Bristol, GB;
Anthony Craig Dolwin, Bristol, GB;
Khurram Ali Rizvi, Bristol, GB;
Yuk Ching Chow, Bristol, GB;
Mohamed Rafiq Ismail, Bristol, GB;
Michael Philip Fitton, Bristol, GB;
Anthony Craig Dolwin, Bristol, GB;
Khurram Ali Rizvi, Bristol, GB;
Yuk Ching Chow, Bristol, GB;
Mohamed Rafiq Ismail, Bristol, GB;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
Spread spectrum receiver architectures and methods are described for reducing interference, particularly the interference observed at a user-end terminal in a W-CDMA 3G mobile communications system. Interpath interference which arises due to non-zero cross and auto correlation of more than one spreading code is suppressed by estimating a transmitted signal stream, or a plurality of such signal streams in the case of a plurality of multipath components, respreading this estimated signal and subtracting non-orthogonal interference contributions from a received signal. The techniques provide an improved bit error rate or equivalently, enhanced capacity for a digital mobile communications network.