R Taori, S Han - US Patent 9,001,918, 2015 - Google Patents
A communication apparatus and method in a wireless communication system that support multiple Orthogonal Frequency Division Multiplexing (OFDM) parameter sets. A method …
H Huh, JH Yang, JH Jeon, SY Yoon, SJ Maeng… - US Patent …, 2009 - Google Patents
Disclosed is a method and an apparatus for generating a preamble sequence for an adaptive antenna system supporting a space division multiple access in an OFDMA …
R Laroia, J Li, S Uppala - US Patent 8,223,627, 2012 - Google Patents
(57) ABSTRACT A method for reducing the peak-to-average ratio in an OFDM communication signal is provided. The method includes defining a constellation having a …
A Meylan - US Patent App. 12/500,548, 2010 - Google Patents
BACKGROUND 0002 I. Field 0003. The following description relates generally to wire less communications systems, and more particularly to scheduling of random access control …
R Laroia, J Li, S Uppala - US Patent App. 11/932,767, 2008 - Google Patents
A method for reducing the peak-to-average ratio in an OFDM communication signal is provided. The method includes defining a constellation having a plurality of symbols …
KY Kim, H Kim, J Lee, HJ Choi - US Patent 7,319,660, 2008 - Google Patents
Provided is a frame synchronization pattern design and synchronization method by which in a transmitter of a communications system employing an orthogonal frequency division …
M Yoshida - US Patent 7,974,350, 2011 - Google Patents
In estimating propagation path in an OFDM receiver in an OFDM communication system, a CIR estimation unit esti mates a group of impulse responses of a propagation path, a valid …
LJ Cimini Jr, NR Sollenberger - US Patent 6,928,084, 2005 - Google Patents
An OFDM system embeds sequence information in the transmitted signal that reduces peak average power ratio (PAP) with minimal impact on the overall system efficiency. A marker is …
SA Husen, A Filippi, P Van Voorthuisen - US Patent 8,345,809, 2013 - Google Patents
In time varying OFDM systems, the effect of a non-ideal time synchronization may lead to a poor performance in terms of decoded average bit error rate versus the signal-to-noise ratio …