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1. (WO2004021506) ITERATIVE MULTI-STAGE DETECTION TECHNIQUE FOR A DIVERSITY RECEIVER HAVING MULTIPLE ANTENNA ELEMENTS
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2004/021506 International Application No.: PCT/US2003/026933
Publication Date: 11.03.2004 International Filing Date: 28.08.2003
IPC:
H04B 1/707 (2011.01) ,H04B 7/08 (2006.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
1
Details of transmission systems, not covered by a single one of groups H04B3/-H04B13/123; Details of transmission systems not characterised by the medium used for transmission
69
Spread spectrum techniques
707
using direct sequence modulation
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
08
at receiving station
Applicants:
ZYRAY WIRELESS, INC. [US/US]; 11455 El Camino Real Suite 350 San Diego, CA 92130, US
Inventors:
VAN ROOYEN, Pieter; US
VAN WYK, Danie; ZA
Agent:
ZIMMER, Kevin, J.; Cooley Godward LLP 3000 El Camino Real Five Palo Alto Square Palo Alto, CA 94306-2155 , US
Priority Data:
60/407,52428.08.2002US
Title (EN) ITERATIVE MULTI-STAGE DETECTION TECHNIQUE FOR A DIVERSITY RECEIVER HAVING MULTIPLE ANTENNA ELEMENTS
(FR) TECHNIQUE DE DETECTION A PLUSIEURS ETAGES ITERATIVE POUR UN RECEPTEUR EN DIVERSITE DOTE DE PLUSIEURS ELEMENTS D'ANTENNE
Abstract:
(EN) An iterative multistage detection system and method for orthogonally multiplexing K channels onto a signal processing chain using N orthogonal sequences of length N. The K channels include a first set of N channels and a second set of M channels (the M channels being separate and distinct from the N channels), where K = N + M. In a first iteration, interference from the first set of N channels imparted on the second set of M channels is removed from the multiplexed signal, thereby enabling the symbol values associated with the second set of M channels to be reliably estimated. In a second iteration, interference from the second set of M channels imparted on the first set of N channels is removed from the first set of N channels, thereby enabling the symbol values associated with the first set of N channels to be reliably estimated.
(FR) L'invention concerne un système de détection à plusieurs étages itératif et sur un procédé de multiplexage orthogonal de canaux K sur une chaîne de traitement de signaux au moyen des séquences orthogonales N de longueur N. Les canaux K comprennent un premier ensemble de canaux N et un second ensemble de canaux M (les canaux M étant séparés et distincts des canaux N), K = N + M. Dans une première itération, l'interférence issue du premier ensemble de canaux N qui se produit sur le second ensemble de canaux M est ôtée du signal multiplexé, ce qui permet aux valeurs symboliques associées au second ensemble de canaux M d'être estimées de manière fiable. Dans une seconde itération, l'interférence issue du second ensemble de canaux M qui se produit sur le premier ensemble de canaux N est ôtée du premier ensemble de canaux N, ce qui permet aux valeurs symboliques associées au premier ensemble de canaux N d'être estimées de manière fiable.
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Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, 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, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, UZ, VC, VN, YU, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IT, LU, MC, NL, 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)