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:
Nov. 01, 2016

Filed:

Jul. 14, 2009
Applicants:

Sang-bum Kim, Seoul, KR;

Cheng Shan, Suwon-si, KR;

Eun-taek Lim, Suwon-si, KR;

Ju-yeon Song, Seoul, KR;

Jung-soo Woo, Suwon-si, KR;

Geun-ho Lee, Suwon-si, KR;

Ho-dong Kim, Gwacheon-si, KR;

Yong-ho Park, Cheonan-si, KR;

Jae-ik Park, Seoul, KR;

Inventors:

Sang-Bum Kim, Seoul, KR;

Cheng Shan, Suwon-si, KR;

Eun-Taek Lim, Suwon-si, KR;

Ju-Yeon Song, Seoul, KR;

Jung-Soo Woo, Suwon-si, KR;

Geun-Ho Lee, Suwon-si, KR;

Ho-Dong Kim, Gwacheon-si, KR;

Yong-Ho Park, Cheonan-si, KR;

Jae-Ik Park, Seoul, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 72/04 (2009.01); H04W 4/00 (2009.01); H04W 72/14 (2009.01); H04L 12/413 (2006.01); H04W 74/08 (2009.01); H04W 16/16 (2009.01); H04W 16/14 (2009.01);
U.S. Cl.
CPC ...
H04W 74/0816 (2013.01); H04W 16/14 (2013.01); H04W 16/16 (2013.01); H04W 74/0825 (2013.01);
Abstract

A method of and apparatus for operating a Coexistence Beacon Protocol (CBP) packet transmitter in a Cognitive Radio (CR)-based wireless communication system is provided. The method includes, identifying a Self-Coexistence Window (SCW) regular pattern of neighbor Wireless Regional Area Networks (WRANs), if vacant SCW slots are not periodically occurring, selecting a WRAN as a contender among the neighbor WRANs, performing a contention for transmitting the CBP packet with the contender within SCW slots that are occupied by the WRAN, and configuring an SCW usage pattern so that an SCW usage period of the CBP packet sender is double that of an SCW usage period of the contender when winning in the contention.


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