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.

Date of Patent:
Dec. 23, 2014

Filed:

Aug. 10, 2011
Applicant:

Tetsumei Tsuruoka, Kawasaki, JP;

Inventor:

Tetsumei Tsuruoka, Kawasaki, JP;

Assignee:

Fujitsu Limited, Kawasaki, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04W 4/00 (2009.01); H04L 5/00 (2006.01); H04W 74/08 (2009.01);
U.S. Cl.
CPC ...
H04L 5/0005 (2013.01); H04L 5/0058 (2013.01); H04L 5/0091 (2013.01); H04W 74/08 (2013.01);
Abstract

A wireless terminal for transmitting data to a base station with placing the data on a plurality of subcarriers, the wireless terminal includes: an antenna; and a processor configured for controlling the antenna to transmit, to the base station, a request signal for requesting an access right with placing the request signal on a predetermined number of subcarriers; and controlling the antenna to transmit, to the base station, a request message for requesting a communication resource being transmitted by subcarriers whose number is less than the predetermined number, to use the access right assigned by the base station with respect to the request signal when the wireless terminal has transmission data; wherein the processor is configured to control the antenna to transmit the request message to the base station when the level of communication with the base station is lower than a threshold value.


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