H - Electricity – 04 – J
Patent
H - Electricity
04
J
H04J 11/00 (2006.01) H04L 1/20 (2006.01) H04L 27/01 (2006.01) H04L 27/26 (2006.01) H04Q 7/36 (2006.01)
Patent
CA 2433909
Disclosed is an apparatus and method for reducing a peak-to-average power ratio (PAPR) due to multiple subcarriers in an OFDM (Orthogonal Frequency Division Multiplexing) mobile communication system. In the OFDM mobile communication system, a transmitter pre-emphasizes an output signal of an IFFT (Inverse Fast Fourier Transform) block, and a receiver de-emphasizes a received signal before FFT (Fast Fourier Transform), thereby efficiently reducing PAPR due to multiple subcarriers.
L'invention concerne un dispositif et un procédé permettant de réduire un rapport valeur de crête/valeur moyenne (PAPR) engendré par les multiples sous-porteuses dans un système de communication mobile à multiplexage par répartition orthogonale de la fréquence (MROF). Dans ce système de communication mobile, un émetteur accentue préalablement un signal de sortie d'un bloc à transformée de Fourier rapide inverse (IFFT), et un récepteur accentue préalablement un signal reçu avant la transformée de Fourier rapide, ce qui permet de réduire efficacement le rapport valeur de crête/valeur moyenne engendré par les multiples sous-porteuses.
Jin Byoung-Il
Jung Ki-Ho
Kim In-Bae
Ryu Heung-Gyoon
Marks & Clerk
Samsung Electronics Co. Ltd.
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