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:
Sep. 22, 2015
Filed:
Oct. 18, 2002
Mark Earnshaw, Nepean, CA;
Eman A. Fituri, Nepean, CA;
Gamini Senarath, Nepean, CA;
David G. Steer, Nepean, CA;
Mark Earnshaw, Nepean, CA;
Eman A. Fituri, Nepean, CA;
Gamini Senarath, Nepean, CA;
David G. Steer, Nepean, CA;
Microsoft Technology Licensing, LLC, Redmond, WA (US);
Abstract
The present invention uses a portion of an orthogonal spreading code space in a CDMA spectrum for uplink from a user element to a base station. By assigning the user elements one or more codes, which are orthogonal to those used to spread data, to use for uplink , the present invention significantly reduces interference between channels, and between the data channels and the channels, while supporting additional capacity. The codes may be individually assigned to user elements or assigned to groups of user elements. Further, different length codes may be assigned to the user elements to support different rates depending on Quality of Service (QoS) requirements.