Invention Grant
US08111661B2 Method and apparatus for implementing clear channel assessment function in multi-band OFDM system
有权
在多频带OFDM系统中实现清晰信道评估功能的方法和装置
- Patent Title: Method and apparatus for implementing clear channel assessment function in multi-band OFDM system
- Patent Title (中): 在多频带OFDM系统中实现清晰信道评估功能的方法和装置
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Application No.: US11702158Application Date: 2007-02-05
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Publication No.: US08111661B2Publication Date: 2012-02-07
- Inventor: Yun Young Kim , Jae Ho Roh
- Applicant: Yun Young Kim , Jae Ho Roh
- Applicant Address: KR Suwon-si
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Suwon-si
- Agency: Sughrue Mion, PLLC
- Priority: KR10-2006-0099821 20061013
- Main IPC: H04W4/00
- IPC: H04W4/00
Abstract:
A clear channel assessment CCA method implemented in a multi-band orthogonal frequency division multiplexing (OFDM) system, the method including: estimating an energy of a received signal in each window at predetermined intervals of two moving-average windows; detecting a peak value according to a difference of energies estimated in relation to the two moving-average windows, and accumulating a number of detected peak values; and reporting a channel status to a medium access control (MAC) according to the number of the accumulated peak values.
Public/Granted literature
- US20080089222A1 Method and apparatus for implementing clear channel assessment function in multi-band OFDM system Public/Granted day:2008-04-17
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