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:
Dec. 09, 2003
Filed:
Aug. 30, 1999
Hiroki Sugimoto, Cavendish Park, SG;
Teng Joon Lim, Singapore, SG;
Lars Rasmussen, Singapore, SG;
Kok Leong Cheah, Singapore, SG;
Sumei Sun, Singapore, SG;
Yoshihiro Matsumoto, Tokyo, JP;
Takashi Oyama, Yokohamo, JP;
Other;
Abstract
At a base station a CDMA received signal coming in through an antenna is fed to a radio frequency unit (RFU) or high frequency unit The RFU demodulates a baseband signal BB from a signal RF and delivers the signal BB to an analog-to-digital converter (A/D) The resulting digital signal output from the A/D is input to a hybrid interference canceller (HIC) as a received signal Rx Data The HIC divides users into two groups and assigns one combination of a parallel interference canceller and a serial interference canceller to each group. The HIC cancels interference contained in the received signal Rx Data for thereby estimating symbols particular to a plurality of users.