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:
Jul. 20, 2010
Filed:
Nov. 30, 2007
Cheol Ho Shin, Daejeon, KR;
Sung Woo Choi, Daejeon, KR;
Joon Hak Bang, Daejeon, KR;
Byoung Hak Kim, Daejeon, KR;
Sang Sung Choi, Daejeon, KR;
Kwang Roh Park, Daejeon, KR;
Cheol Ho Shin, Daejeon, KR;
Sung Woo Choi, Daejeon, KR;
Joon Hak Bang, Daejeon, KR;
Byoung Hak Kim, Daejeon, KR;
Sang Sung Choi, Daejeon, KR;
Kwang Roh Park, Daejeon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
It is possible to intuitively determine whether to control transmission power of a current data transmission rate mode or to change the data transmission rate mode by extracting an automatic gain controller (AGC) index after driving algorithm of an AGC, recognizing a channel clear assessment (CCA) status by using the extracted AGC index, and generating link quality indicator (LQI) information to be transmitted from a physical layer to a media access control (MAC) layer by using the AGC index, when the CCA status is high, in order to embody effective piconets in a multi-band orthogonal frequency division multiplexing ultra-wide band system (MB-OFDM UWB system) including a receiver having a dynamic gain controller(DGC) and the AGC.