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:
Jun. 19, 2012
Filed:
Jun. 12, 2009
May Takada, Koganei, JP;
Satoshi Tamaki, Kokubunji, JP;
Shigeyuki Ejiri, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
Provided is a wireless communication system, comprising: a wireless communication apparatus which performs adaptive modulation for changing a modulation method and an encoding rate of a data channel, and transmits/receives a signal via MIMO multiplexing. The control information comprises first control information to be used for a MIMO stream separation process and second control information not to be used for the MIMO stream separation process. The selections in the second control information are changed corresponding to selected first control information. The wireless communication apparatus determines the first control information at an update timing of the first control information by referring to the first control information table, determine selections of the second control information based on the determined first control information, and select one of the selections of the second control information among the determined selections of the second control information at an update timing of the second control information.