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. 25, 2002
Filed:
Jan. 11, 1999
Jorma Lilleberg, Oulu, FI;
Esko Nieminen, Oulu, FI;
Nokia Mobile Phones Ltd., Espoo, FI;
Abstract
A delay estimation method and a receiver in a radio system. Signals originate from one or several transmitters and propagate along several paths. One path (73-77) is selected at a time for estimation. The least squares minimization between the received signal and the code bank model is solved path by path (73-77) and delay by delay. The delay of only one selected path is changed at a time. Using the minimization results the delays of the other paths (73-77) remain unchanged. The minimization results establish the delay with the minimized result at most equal to the results for other delays. This delay is used as the constant value of the path (73-77) when the delays of the other paths are searched. The method provides the delays of all the paths (73-77) of all users simultaneously without information on user symbols or attenuation coefficients of the channel.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile