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:
Apr. 08, 2008
Filed:
Jul. 09, 2004
Shinji Fukuda, Fukuoka-shi, Fukuoka 814-0143, JP;
Yoshihiro Takehisa, Fukuoka-shi, Fukuoka 811-1364, JP;
Shinji Fukuda, Fukuoka-shi, Fukuoka 814-0143, JP;
Yoshihiro Takehisa, Fukuoka-shi, Fukuoka 811-1364, JP;
Other;
Abstract
A radio communication apparatus and method employs frequency hopping in a predetermined pattern based on a hopping carrier table. An intermittent receiving section activates a carrier frequency designating section every constant cycle to give a command for receiving the control channels of opposing radio base stations. In the case in which a hopping order in a hopping carrier table is skipped by n to carry out switching every intermittent receiving cycle in an intermittent receiving operation, an intermittent receiving cycle is set in such a manner that the n and a total number m of hopping carrier frequencies in the hopping carrier table have a prime relationship with each other. The electric field strength of a carrier frequency in a spare carrier list is measured by the intermittent receiving operation and an interference counter of a spare carrier is increased or decreased corresponding to a frequency at which the electric field strength exceeds or does not exceed a predetermined threshold. A carrier frequency deleted from a hopping pattern and placed in the spare carrier list is set to have the worst value as the initialized value of its interference counter.