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:
May. 13, 2014
Filed:
Nov. 03, 2009
Dae-sik Hong, Seoul, KR;
Go-san Noh, Seoul, KR;
Han-ho Wang, Seoul, KR;
Jun-ho JO, Anyang, KR;
Yong-ho Seok, Anyang, KR;
Byoung-hoon Kim, Anyang, KR;
Dae-Sik Hong, Seoul, KR;
Go-San Noh, Seoul, KR;
Han-Ho Wang, Seoul, KR;
Jun-Ho Jo, Anyang, KR;
Yong-Ho Seok, Anyang, KR;
Byoung-Hoon Kim, Anyang, KR;
Abstract
Disclosed are an apparatus and method for determining a frame structure for reducing interference between users using the same frequency band in a communication system using a cognitive radio, the method including, collecting channel status information related to a primary user with a priority to occupancy of a predetermined frequency band, executing spectrum sensing for the frequency band to check whether the primary user's traffic exists, deciding a length of a data frame to be transmitted in consideration of interference to the primary user based upon the collected channel status information if a channel in which the primary user's traffic is not present is sensed through the spectrum sensing, constructing a data frame based upon the decided frame length to transmit via the sensed channel, and re-executing the spectrum sensing for the channel, if data to be additionally transmitted exists, and rechecking whether the primary user's traffic is present.