Processing

Please wait...

PATENTSCOPE will be unavailable a few hours for maintenance reason on Saturday 31.10.2020 at 7:00 AM CET
Settings

Settings

Goto Application

1. WO2006095521 - RECEIVER AND RECEIVING METHOD

Publication Number WO/2006/095521
Publication Date 14.09.2006
International Application No. PCT/JP2006/302071
International Filing Date 07.02.2006
IPC
H04B 1/707 2011.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details of transmission systems, not covered by a single one of groups H04B3/-H04B13/123; Details of transmission systems not characterised by the medium used for transmission
69Spread spectrum techniques
707using direct sequence modulation
CPC
H04B 1/707
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
69Spread spectrum techniques
707using direct sequence modulation
H04L 2025/03375
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
25Baseband systems
02Details
03Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
03006Arrangements for removing intersymbol interference
0335characterised by the type of transmission
03375Passband transmission
H04L 2025/03522
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
25Baseband systems
02Details
03Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
03006Arrangements for removing intersymbol interference
03433characterised by equaliser structure
03439Fixed structures
03522Frequency domain
H04L 25/03159
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
25Baseband systems
02Details
03Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
03006Arrangements for removing intersymbol interference
03159operating in the frequency domain
Applicants
  • 日本電気株式会社 NEC CORPORATION [JP]/[JP] (AllExceptUS)
  • 望月 孝志 MOCHIZUKI, Takashi [JP]/[JP] (UsOnly)
Inventors
  • 望月 孝志 MOCHIZUKI, Takashi
Agents
  • 稲垣 清 INAGAKI, Kiyoshi
Priority Data
2005-06495109.03.2005JP
2005-29760312.10.2005JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) RECEIVER AND RECEIVING METHOD
(FR) RÉCEPTEUR ET MÉTHODE DE RÉCEPTION
(JA) 受信装置及び方法
Abstract
(EN)
An FFT circuit (11) performs fast Fourier transform of a receiving signal at M×R×Q points, where M is the over sampling rate, Q is the chip repetition unit, and R is the chip repetition rate of the receiving signal. A weight multiplier (12) multiplies the frequency component having a frequency component number equal to integer times of R by a weighting factor for equalizing transmission line out of M×R×Q frequency components outputted from a fast Fourier transform circuit, and multiplies other frequency components by 0. A fast inverse Fourier transform circuit (13) receives the output from the weight multiplier (12) and performs fast inverse Fourier transform of the frequency component having a frequency component number equal to integer times of R.
(FR)
Un circuit FFT (11) effectue une transformée de Fourier rapide d’un signal de réception au point M×R×Q, M étant la vitesse de suréchantillonnage, Q l’unité de répétition de puce et R la vitesse de répétition de puce du signal de réception. Un multiplicateur de pondération (12) multiplie la composante de fréquence ayant un numéro de composante de fréquence multiple entier de R par un facteur de pondération pour égaliser la ligne de transmission des composantes de fréquence M×R×Q fournies par un circuit transformée de Fourier rapide, et multiplie d’autres composantes de fréquence par 0. Un circuit de transformée de Fourier rapide inverse (13) reçoit la sortie du multiplicateur de pondération (12) et applique une transformée de Fourier rapide inverse à la composante de fréquence ayant un numéro de composante de fréquence multiple entier de R.
(JA)
【解決手段】 FFT回路(11)は、受信信号のオーバーサンプリング率をM、チップ繰返し単位をQ、チップ繰返し率をRとして、受信信号にM×R×Q点の高速フーリエ変換を施す。重み乗算器(12)は、前記高速フーリエ変換回路が出力するM×R×Q個の周波数成分のうち、周波数成分の番号がRの整数倍の周波数成分に伝送路等化のための重み係数を乗算し、Rの整数倍以外の周波数成分に0を乗算する。高速フーリエ逆変換回路(13)は、重み乗算器(12)の出力を入力し、周波数成分の番号がRの整数倍の周波数成分に対して高速フーリエ逆変換を行う。
Latest bibliographic data on file with the International Bureau