Image:  
1 7

PCT World Intellectual Property Organization
International Bureau
WIPO
(12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT)
(51) International Patent Classification7
H04L 1/00, 1/06
A1
(11) International Publication Number WO 02/43314
(43) International Publication Date 30 May 2002 (30.05.2002)
(21) International Application Number PCT/RU00/00475
(22) International Filing Date 22 November 2000 (22.11.2000)
(71)Applicants:
NORTEL NETWORKS LIMITED 2351 Boulevard Alfred Nobel, St. Laurent, Quebec H4S 2A9; (CA). [CA/CA].(for all designated States except US) WANG, Chao 1204-900 Dynes Road, Ottawa, Ontario K2C 3L6; (CA). [CA/CA].
(72)(75)Inventors; and
Inventors/Applicants:
JIA, Ming 609-320 Croydon Avenue, Ottawa, Ontario K2B 5P3; (CA) [CA/CA].SHINAKOV, Yuri S. ul. Vilnjusskaya, 7-2-125, Moscow, 117574; (RU) [RU/RU].CHLOMA, Alexandre, M. s. Zhukovsky, ul. Gagarina, 63-27, Moskovskaya obl., 140160; (RU) [RU/RU].BAKOULINE, Mikhail G. s. Podolsk, ul. Kirova, 35-31, Moskovskaya obl., 142110; (RU) [RU/RU].KREINDELINE, Vitali B. ul. Grajvoronovskaya, 8-1-87, Moscow, 109518; (RU) [RU/RU].
(74) Agent
KLIUKIN, Viacheslav Alexandrovich Gowlings International Inc., Prechistensky pereulok, 14-1, Moscow, 119034; (RU).
(81) Designated States (national)
AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CR, CU, CZ, DE, DK, DM, DZ, EE, 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, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, US, UZ, VN, YU, ZA, ZW
(84) Designated States (regional)
ARIPO patent (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZW), Eurasian patent (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM), European patent (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE, TR), OAPI patent (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG)
For information on time limits for entry into the national phase please click here
Published
with international search report

(54) Title METHODS AND APPARATUS FOR TURBO SPACE-TIME TRELLIS CODING
(57) Abstract
Space-time diversity using a plurality of transmit antennas (16, 18) is provided with a turbo coding arrangement comprising two recursive systematic convolutional coders (30, 32), to one of which input bits are supplied directly and to the other of which the information bits are supplied after interleaving (34) of bit groups for respective symbol intervals. Symbols produced by the coders and comprising systematic and parity information are supplied to paths to the antennas alternately in successive symbol intervals to provide the space-time diversity. Arrangements are described for 2 and 4 antennas and for various convolutional codes, and an iterative decoder is also described.
  Image:  
1 7