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Pub. No.:    WO/2007/020943    International Application No.:    PCT/JP2006/316104
Publication Date: 22.02.2007 International Filing Date: 16.08.2006
H04J 11/00 (2006.01)
Applicants: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. [JP/JP]; 1006, Oaza Kadoma, Kadoma-shi, Osaka 5718501 (JP) (For All Designated States Except US).
WU, Qiang; (For US Only).
LI, Jifeng; (For US Only)
Inventors: WU, Qiang; .
LI, Jifeng;
Agent: WASHIDA, Kimihito; 5th Floor, Shintoshicenter Bldg. 24-1, Tsurumaki 1-chome Tama-shi, Tokyo 2060034 (JP)
Priority Data:
200510091685.6 16.08.2005 CN
(JA) OFDM通信方法
Abstract: front page image
(EN)An OFDM (Orthogonal Frequency Division Multiplexing) communication method that can improve the transmission efficiency of OFDM signals, while reducing the PAPR (Peak to Average Power Ratio) thereof, and further can reduce the error rate of received data. This method comprises selecting, from a plurality of weighting coefficients, an optimum weighting coefficient to be used for minimizing the PAPR of the OFDM signals; circularly shifting a pilot sequence by a shift amount corresponding to the optimum weighting coefficient; and inserting the circularly shifted pilot sequence into transport data.
(FR)Méthode de communication OFDM (multiplexage à division de fréquence orthogonale) pouvant améliorer l’efficacité de transmission de signaux OFDM tout en diminuant son PAPR (rapport puissance crête à moyenne) et pouvant, en outre, réduire le taux d’erreur des données reçues. Cette méthode comprend la sélection, parmi une pluralité de coefficients de pondération, d’un coefficient de pondération optimal à employer pour minimiser le PAPR de signaux OFDM ; le décalage circulaire d’une séquence pilote d’une valeur de décalage correspondant au coefficient de pondération optimal ; et l’insertion dans des données de transport de la séquence pilote après son décalage circulaire.
(JA) OFDM(Orthogonal Frequency Division Multiplexing)信号のPAPR(Peak to Average Power Ratio)を低減しつつ、伝送効率を向上させることができるとともに、受信データの誤り率を低下させることができるOFDM通信方法。この方法において、複数の重み係数のうちから、OFDM信号のPAPRを最小にする最適な重み係数を選択し、前記最適な重み係数に対応するシフト量にてパイロット系列を循環シフトし、循環シフトされた前記パイロット系列を送信データに挿入する。
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)