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:
Nov. 26, 2013
Filed:
Dec. 07, 2009
Onur Altintas, Tokyo, JP;
Yuji Oie, Kitakyushu, JP;
Masato Tsuru, Kitakyushu, JP;
Kazuya Tsukamoto, Kitakyushu, JP;
Onur Altintas, Tokyo, JP;
Yuji Oie, Kitakyushu, JP;
Masato Tsuru, Kitakyushu, JP;
Kazuya Tsukamoto, Kitakyushu, JP;
Toyota Infotechnology Center Co., Ltd., Tokyo, JP;
Kyushu Institute of Technology, Fukuoka, JP;
Abstract
There is provided a technique of establishing a communication between a transmitting node and a receiving node by selecting a suitable frequency band for communication without using a predetermined control channel. Firstly, a frequency band to be used as a control channel is selected from among low frequency bands, and information on frequencies and information on application's quality requirements are exchanged between the transmitting node and the receiving node using the control channel. Then, a frequency band to be used as a data channel is determined, and a communication is started. During the communication, frequency use statuses around the transmitting node and the receiving node are notified through the control channel, and when the control channel or data channel being used becomes unusable, the channel is dynamically changed. Since a low frequency band having a long propagation distance is used as the control channel, exchange of information through the control channel can be performed before communication through a data channel in a high frequency band becomes possible, the data channel that meets the quality requirements can be determined quickly.