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Machine translation
1. (WO2007080678) SCRAMBLING OF DATA AND PILOT SYMBOLS OF MACRO-DIVERSITY OFDM TRANSMISSIONS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2007/080678    International Application No.:    PCT/JP2006/319826
Publication Date: 19.07.2007 International Filing Date: 27.09.2006
IPC:
H04L 27/26 (2006.01), H04L 25/02 (2006.01)
Applicants: KABUSHIKI KAISHA TOSHIBA [JP/JP]; 1-1, Shibaura 1-chome, Minato-ku, Tokyo, 1058001 (JP) (For All Designated States Except US).
AKITA, Koji [JP/JP]; (For US Only)
Inventors: AKITA, Koji;
Agent: SUZUYE, Takehiko; c/o SUZUYE & SUZUYE, 1-12-9, Toranomon, Minato-ku, Tokyo, 1050001 (JP)
Priority Data:
2006-007918 16.01.2006 JP
Title (EN) SCRAMBLING OF DATA AND PILOT SYMBOLS OF MACRO-DIVERSITY OFDM TRANSMISSIONS
(FR) BROUILLAGE DE DONNÉES ET DE SYMBOLES PILOTES DE TRANSMISSIONS OFDM À MACRO-DIVERSITÉ
Abstract: front page image
(EN)Diversity transmission of broadcast OFDM information scrambling is used to separate at the receiver the multiple transmission and estimate each of the associated channel response. All symbols of a group consisting in one pilot symbol and its neighbouring data symbols are multiplied by the same complex number so that at the receiver no descrambling operation is needed. Scrambling process and channel response are estimated and equalized together.
(FR)L'invention concerne la transmission en diversité du brouillage d'informations OFDM de radiodiffusion, permettant de séparer les transmissions multiples au niveau du récepteur, et d'estimer chacune des réponses de canal associées. Tous les symboles d'un groupe formé d'un symbole pilote et des symboles de données adjacents sont multipliés par le même nombre complexe de manière qu'aucune opération de désembrouillage ne soit nécessaire au niveau du récepteur. Le processus de brouillage et la réponse de canal sont conjointement estimés et égalisés.
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, 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, SV, 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: English (EN)
Filing Language: English (EN)