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. 29, 2000
Filed:
Aug. 20, 1997
Yukie Mimura, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
An automatic frequency assignment method, which is capable of assigning optimum frequencies to radio ports even when the radio ports are adjacent with a shield therebetween, is provides. A plurality of radio ports around a radio port to be assigned with a frequency to sequentially transmit signals at an assignment candidate frequency. A radio port already using the same frequency as the candidate frequency measures the received signal power of these signals, and compares them with a threshold. If the result of comparison reveals that there is no radio port receiving received signal power exceeding the threshold, the assignment candidate frequency is assigned. If there is a radio port receiving the received signal power exceeding the threshold, the candidate frequency is excluded from assignment candidate frequencies. This locates a radio port covered by a shielding object, so that the same frequency is prevented from being assigned to adjacent radio ports.