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:
Nov. 13, 2007
Filed:
Feb. 03, 2004
Junichi Aizawa, Yokohama, JP;
Hitoshi Iochi, Yokohama, JP;
Kazuyuki Miya, Setagaya-ku, JP;
Matsushita Electric Industrial Co., Ltd, Osaka, JP;
Abstract
A base station apparatus (radio transmission apparatus) transmits a radio signal of data to a mobile terminal apparatus (communication apparatus of a transmission destination). The mobile terminal apparatus receiving the radio signal determines (ST) information (CQI) on a downlink transmission rate enabling reception in the mobile terminal apparatus based on reception quality such as CIR to transmit to the base station apparatus. The base station apparatus extracts a CQI value from the received radio signal, while obtaining likelihood of received data (ST), and corrects the CQI value based on the likelihood (ST). Then, based on the corrected CQI value, the base station apparatus determines a downlink transmission rate (ST). By this means, even when the radio transmission apparatus erroneously receives the transmission rate request transmitted from the communication apparatus of the transmission destination, the communication apparatus is prevented from erroneously receiving the data transmitted from the radio transmission apparatus.