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Machine translation
1. (WO2007015018) METHOD FOR CHANNEL ESTIMATION BY POLYNOMIAL INTERPOLATION
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2007/015018    International Application No.:    PCT/FR2006/050464
Publication Date: 08.02.2007 International Filing Date: 19.05.2006
IPC:
H04L 25/02 (2006.01)
Applicants: FRANCE TELECOM [FR/FR]; 6 Place d'Alleray, F-75015 Paris (FR) (For All Designated States Except US).
YUAN-WU, Julie [FR/FR]; (FR) (For US Only)
Inventors: YUAN-WU, Julie; (FR)
Agent: WINDAL-VERCASSON, Gaëlle; FRANCE TELECOM R & D/PIV/BREVETS, 38-40 Rue du Général Leclerc, F-92794 Issy les Moulineaux Cedex 9 (FR)
Priority Data:
0506137 17.06.2005 FR
Title (EN) METHOD FOR CHANNEL ESTIMATION BY POLYNOMIAL INTERPOLATION
(FR) PROCEDE D'ESTIMATION DE CANAL PAR INTERPOLATION POLYNOMIALE
Abstract: front page image
(EN)The invention relates to a method for estimating a quantity of a channel in a radiomobile communication with OFDM modulation between at least one mobile terminal (k) and at least one base station, said estimation being carried out at the symbols (mD) of data of a communication frame by means of polynomial interpolation based on determined values of said quantity, at least at the Np pilot symbols (mP) of the frame which are associated with the mobile terminal. According to the invention, the degree N of the interpolation polynomial is selected between 0 and Np -1 according to the speed of displacement of the mobile terminal. The invention can be applied to the estimation of propagation channels in radiomobile communications between mobile terminals and base stations, using MC-CDMA technology.
(FR)Procédé d'estimation d'une grandeur de canal dans une communication radiomobile à modulation OFDM entre au moins un terminal mobile (k) et au moins une station de base, ladite estimation étant effectuée aux symboles (mD) de données d'une trame de communication par interpolation polynomiale à partir de valeurs de ladite grandeur déterminées, au moins, aux Np symboles-pilotes (mP) de ladite trame associés audit terminal mobile. Selon l'invention, le degré N du polynôme d'interpolation est choisi entre 0 et Np -1 en fonction de la vitesse de déplacement du terminal mobile. Application à l'estimation de canal de propagation dans les communications radiomobiles entre terminaux mobiles et stations de base, mettant en oeuvre la technologie MC-CDMA.
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, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, 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: French (FR)
Filing Language: French (FR)