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Machine translation
1. (WO2006091132) IQ-MODULATOR PRE-DISTORTION
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2006/091132    International Application No.:    PCT/SE2005/000277
Publication Date: 31.08.2006 International Filing Date: 24.02.2005
IPC:
H04L 27/36 (2006.01), H03F 1/32 (2006.01)
Applicants: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) [SE/SE]; S-164 83 Stockholm (SE) (For All Designated States Except US).
REXBERG, Leonard [SE/SE]; (SE) (For US Only)
Inventors: REXBERG, Leonard; (SE)
Agent: AROS PATENT AB; P.O. Box 1544, S-751 45 Uppsala (SE)
Priority Data:
Title (EN) IQ-MODULATOR PRE-DISTORTION
(FR) PRE-DISTORSION DE MODULATEUR IQ
Abstract: front page image
(EN)An IQ-modulator pre-distorter includes means for pre-distorting each IQ-vector by a 2-dimensional linear transformation that depends on the value of the IQ-vector to be pre-distorted. The transformation is based on polynomials in the I- and Q-components. In a preferred embodiment the transformation is based on a 2x2 dimensional lookup table matrix, the elements (T11, T12, T21, T22) of which are sampled polynomials in the I- and Q-components of the IQ-vector.
(FR)Une unité de pré-distorsion de modulateur IQ comprend un moyen de pré-distorsion de chaque vecteur IQ par une transformation bidimensionnelle linéaire qui dépend de la valeur du vecteur IQ à soumettre à une pré-distorsion. La transformation est basée sur des fonctions polynômes dans les composantes I et Q. Dans un mode de réalisation préféré, la transformation est basée sur une matrice de table à consulter de dimension 2x2 dont les éléments (T11, T12, T21, T22) sont des fonctions polynômes échantillonnées dans les composantes I et Q du vecteur IQ.
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, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NA, 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, 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)