Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO2001005060) TRANSMIT DIVERSITY TRANSMITTER AND RECEIVER FOR RADIO COMMUNICATIONS SYSTEMS
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2001/005060 International Application No.: PCT/EP2000/006446
Publication Date: 18.01.2001 International Filing Date: 05.07.2000
Chapter 2 Demand Filed: 22.01.2001
IPC:
H04B 7/06 (2006.01) ,H04L 1/06 (2006.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
7
Radio transmission systems, i.e. using radiation field
02
Diversity systems
04
using a plurality of spaced independent aerials
06
at transmitting station
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1
Arrangements for detecting or preventing errors in the information received
02
by diversity reception
06
using space diversity
Applicants:
CLOP, Oscar [ES/FR]; FR (UsOnly)
BOIXADERA, Francesc [ES/FR]; FR (UsOnly)
MAX, Francisco [ES/FR]; FR (UsOnly)
MOTOROLA INC. [US/US]; 1303 East Algonquin Road Schaumburg, IL 60196, US (AllExceptUS)
Inventors:
CLOP, Oscar; FR
BOIXADERA, Francesc; FR
MAX, Francisco; FR
Agent:
POTTS, Susan ; Motorola European Intellectual Property Operations Midpoint Alencon Link Basingstoke Hampshire RG21 7PL, GB
Priority Data:
99401757.213.07.1999EP
Title (EN) TRANSMIT DIVERSITY TRANSMITTER AND RECEIVER FOR RADIO COMMUNICATIONS SYSTEMS
(FR) EMETTEUR ET RECEPTEUR A DIVERSITE DE TRANSMISSION POUR SYSTEMES DE COMMUNICATION RADIO
Abstract:
(EN) A space time transmit diversity scheme using two antennas (9, 10) in which a data block of symbols (D22) is transmitted simultaneously with a complex conjugate of another block (D21*). With suitable receiver (15) processing, the symbols can be recovered with only a small complexity increase. The invention has a particular application to CDMA systems operating in TDD mode.
(FR) L'invention porte sur un schéma de diversité de transmission spatio-temporel utilisant deux antennes (9, 10) dans lesquelles un bloc de données de symboles (D22) est transmis simultanément avec un conjugué complexe d'un autre bloc (D21*). Par un traitement approprié du récepteur (15), les symboles peuvent être récupérés avec seulement un peu plus de complexité. Cette invention peut s'appliquer notamment à des systèmes AMDC fonctionnant en mode multiplexage temporel.
front page image
Designated States: AT, AU, BB, BG, BR, BY, CA, CN, CZ, DE, DK, EE, ES, FI, GB, GE, HU, IS, JP, KE, KG, KP, KR, KZ, LK, LR, LT, LU, LV, MD, MG, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, TJ, TM, TT, UA, UG, US, UZ, VN
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)