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:
Jul. 16, 2002
Filed:
Nov. 19, 1998
Takahiro Yasaki, Tokyo, JP;
NEC Corporation, , JP;
Abstract
A spread spectrum communication system includes a plurality of mobile stations and a plurality of base stations that share the same frequency and operate independently. Each of the base stations can serve as a local base station and a non-local base station and has an element for always transmitting a pilot signal (base station reference signal) at a constant power level. Each of the mobile stations also has a quality measuring element for measuring base station reference signals received from the local base station and an adjacent base station serving as a non-local base station, and a transmission power controlling element for controlling the power level of a signal transmitted from the relevant mobile station corresponding to the measured results in such a manner that when the relevant mobile station has approached the adjacent base station, the transmission power controlling element decreases the power level of the transmission signal.