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. 20, 2013
Filed:
Jan. 20, 2010
Applicants:
Daisuke Tanigawa, Kawasaki, JP;
Hidehiko Oyane, Yokohama, JP;
Inventors:
Daisuke Tanigawa, Kawasaki, JP;
Hidehiko Oyane, Yokohama, JP;
Assignee:
NTT DoCoMo, Inc., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A radio base station wherein, when a radio equipment control detects an uplink communication failure on a physical circuit, a downlink communication processing unit is configured to transmit a downlink IQ data for all combinations of antennae and carriers to a radio equipment with all values of the downlink IQ data set to '0,' and a downlink radio equipment is configured to stop a transmission of a downlink signal of all the carriers through all the antenna when the downlink IQ data whose values are all '0' is received.