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:
Feb. 07, 2012
Filed:
Feb. 24, 2009
Applicants:
Tomonori Yamamoto, Kokubunji, JP;
Katsuhiko Tsunehara, Hachioji, JP;
Satoshi Tamaki, Kokubunji, JP;
May Takada, Koganei, JP;
Mikio Kuwahara, Yokohama, JP;
Inventors:
Tomonori Yamamoto, Kokubunji, JP;
Katsuhiko Tsunehara, Hachioji, JP;
Satoshi Tamaki, Kokubunji, JP;
May Takada, Koganei, JP;
Mikio Kuwahara, Yokohama, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04J 3/06 (2006.01); H04J 3/16 (2006.01); H04L 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a cellular radio communication system, a base station or a mobile station has a TA (Time Alignment)-range-out detection function, so that when a TA-range-out state that is unable to compensate with a guard interval is detected, the transmission condition of an uplink signal at the mobile station is changed by the mobile station autonomously or by the base station and the mobile station cooperatively.