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. 24, 2008
Filed:
Jun. 26, 2002
Sung K. Park, Kanata, CA;
Hong Ren, Kanata, CA;
Ning Guo, Nepean, CA;
Nortel Networks Limited, St. Laurent, Quebec, CA;
Abstract
A combined CDM/TDM (code division multiplexing/time division multiplexing) transmitter and method are provided which employ fractional slot assignment by assigning fractional CDM channel gains to multiple slots for at least one packet with a goal that a sum of fractional CDM gains assigned each packet over a scheduling period meet a required threshold. In some embodiments, the transmitter is adapted to determine which users to transmit during a given slot, and to determine fractional CDM channel gains using an optimization of fractional CDM channel gain and user assignment which maximizes a number of users each of which is assigned a respective group of one or more slots with fractional CDM channel gains which sum to the required threshold for the user.