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:
May. 31, 2011
Filed:
Mar. 24, 2006
Haitao LI, Beijing, CN;
Jifeng LI, Kanagawa, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A MIMO transmitting apparatus wherein a low power consumption and a high performance can be achieved by taking the influence of variation in communication distance into account. In this apparatus, a low power consumption design part () selectively decides, based on the distance from the other end of communication, whether to perform a pre-coding. When deciding to perform the pre-coding, the low power consumption design part () instructs a modulating part () to perform a low-order QAM modulation, while instructing a pre-coding part () to perform a pre-coding. When instructed to perform a low-order QAM modulation, the modulating part () uses a low-order QAM modulation scheme to modulate an input information bit sequence. When instructed to perform a pre-coding, the pre-coding part () uses a pre-coding matrix to pre-process the input information bit sequence.