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:
Feb. 05, 2002
Filed:
Dec. 21, 2000
Hidehiko Norimatsu, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A plurality of base stations each calculate a distance function value with respect to a mobile station by detecting up signal therefrom in their own receiver (step S ), and transmit the calculated value to a base station controller (step S ). When a base station as reference base station receives, from the mobile station, the difference of timings of base station down signal reception (steps S and S ), it transmits the reception timing difference to the controller (step S ). The controller calculates, from data from an in-question base station, the difference of up signal reception timings in the reference and in-question base stations, and reports the difference to other base stations than the reference base station, thus causing down signal transmission timing updating.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile