Pulse or digital communications – Spread spectrum – Direct sequence
Reexamination Certificate
2011-04-26
2011-04-26
Fan, Chieh M (Department: 2611)
Pulse or digital communications
Spread spectrum
Direct sequence
C375S140000, C375S142000, C375S146000, C375S340000, C375S343000, C370S328000, C370S335000, C370S441000, C370S445000
Reexamination Certificate
active
07933313
ABSTRACT:
Disclosed herein are a signal quality measuring apparatus for the WiBro system and a method thereof. The signal quality measuring apparatus for a WiBro system includes a WiBro signal reception unit, a preamble code correlation unit, a channel compensation/demodulation unit, and a control unit. The WiBro signal reception unit receives a WiBro signal from each base station. The preamble code correlation unit searches the WiBro signal for a number of preamble codes equal to the number of base stations for which measurement of signal quality measurement is required. The channel compensation/demodulation unit acquires the information of a Frame Control Header (FCH) section and a DownLink-MAP (DL-MAP) section with reference to the preamble codes found by the preamble code correlation unit, and demodulates the information of a unique number of the base station. The control unit collects and processes the information about the unique number of the base station demodulated by the channel compensation/demodulation unit, and information about signal quality of the preamble codes found by the preamble code correlation unit.
REFERENCES:
patent: 7616679 (2009-11-01), Choi et al.
patent: 7649963 (2010-01-01), Choi et al.
patent: 2006/0078040 (2006-04-01), Sung et al.
patent: 2006/0251034 (2006-11-01), Park
patent: 2007/0268846 (2007-11-01), Proctor et al.
patent: 2008/0031392 (2008-02-01), Joung et al.
patent: 2008/0069080 (2008-03-01), Joung et al.
patent: 2008/0108316 (2008-05-01), Joung et al.
Hyoungsoo Lim; Dong Seung Kwon. “Initial Synchronization for WiBro” Communications, 2005 Asia-Pacific Conference on. 2005, pp. 284-288.
Hyoungsoo Lim; Dong Seung Kwon. “Initial Synchronization for WiBro”. Communications, 2005 Asia-Pacific Conference on. 2005, pp. 284-288.
Ji Seunghwan
Joung Jin-soup
Lee Jae-sung
Fan Chieh M
Giles Eboni
Innowireless Co., Ltd.
Rothwell Figg Ernst & Manbeck P.C.
LandOfFree
Signal quality measuring apparatus for WiBro system and the... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Signal quality measuring apparatus for WiBro system and the..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Signal quality measuring apparatus for WiBro system and the... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2630055