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:
Aug. 14, 2007
Filed:
Jun. 28, 2004
Shingo Kikuchi, Tokyo, JP;
Shousei Yoshida, Tokyo, JP;
Yoshikazu Kakura, Tokyo, JP;
Akihisa Ushirokawa, Tokyo, JP;
Masayuki Kimata, Tokyo, JP;
Shingo Kikuchi, Tokyo, JP;
Shousei Yoshida, Tokyo, JP;
Yoshikazu Kakura, Tokyo, JP;
Akihisa Ushirokawa, Tokyo, JP;
Masayuki Kimata, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A radio communication system for quickly selecting an optimum transmission mode in accordance with the quality and situation of a propagation path is provided. The system comprises first and second radio communication apparatuses capable of radio-communicating with each other. The first radio communication apparatus comprises a propagation path environment estimator for outputting the estimation result as propagation path environment information, a propagation path quality estimator for outputting the estimation result as propagation path quality, and a transmitter for transmitting both the informations to the second radio communication apparatus. The second radio communication apparatus comprises a transmission mode selector for selecting one of the transmission modes used for communicating with the first radio communication.