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:
Dec. 10, 2013
Filed:
Dec. 28, 2009
Applicant:
Atsushi Fujimoto, Tokyo, JP;
Inventor:
Atsushi Fujimoto, Tokyo, JP;
Assignee:
Iwatsu Electric Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04W 4/00 (2009.01);
U.S. Cl.
CPC ...
Abstract
The wireless communication devices A and B determine the optimal diversity combining weight information that optimizes a diversity reception state at each antenna group A, A, . . . , Athrough two-way training signal transfer between the wireless communication devices A and B. This optimal diversity combining weight information is set to each antenna of each antenna group A, A, . . . , A. Wireless communication units A', B′ perform spacial mapping of signals from antenna group A, A, . . . , Ausing MIMO technology. Communication area can be enlarged by hierarchization MIMO using the optimal diversity combining weight information.