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1. (WO2010075172) SYSTEM AND METHOD FOR COMBINATION MULTIPLE INPUT, MULTIPLE OUTPUT (MIMO) AND BEAMFORMING
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2010/075172 International Application No.: PCT/US2009/068503
Publication Date: 01.07.2010 International Filing Date: 17.12.2009
IPC:
H04B 7/04 (2006.01) ,H04W 16/28 (2009.01) ,H04W 84/10 (2009.01)
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
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
W
WIRELESS COMMUNICATION NETWORKS
16
Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cell structures
24
Cell structures
28
using beam steering
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
W
WIRELESS COMMUNICATION NETWORKS
84
Network topologies
02
Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
10
Small scale networks; Flat hierarchical networks
Applicants:
MOTOROLA MOBILITY, INC. [US/US]; 600 North US Highway 45 Libertyville, IL 60048, US (AllExceptUS)
KRAUSS, Thomas, P. [US/US]; US (UsOnly)
VOOK, Frederick, W. [US/US]; US (UsOnly)
ZHUANG, Xiangyang [CN/US]; US (UsOnly)
Inventors:
KRAUSS, Thomas, P.; US
VOOK, Frederick, W.; US
ZHUANG, Xiangyang; US
Agent:
MAY, Steven, A.; 600 North US Highway 45 Libertyville, IL 60048, US
Priority Data:
12/340,85722.12.2008US
Title (EN) SYSTEM AND METHOD FOR COMBINATION MULTIPLE INPUT, MULTIPLE OUTPUT (MIMO) AND BEAMFORMING
(FR) SYSTÈME ET PROCÉDÉ DE COMBINAISON DE MULTIPLES ENTRÉES, MULTIPLES SORTIES (MIMO) ET DE FORMATION DE FAISCEAU
Abstract:
(EN) Specifically, a method and system are provided that performs MIMO and beamforming at a base station (102) based on an uplink channel sounding (ULCS) from only one of a mobile station's (130) antennas (132, 134) and closed-loop multiple input, multiple output (MIMO) schemes based on the singular value decomposition (SVD) of the channel matrix. The ULCS is limited to sounding and the channel uses fewer than an optimal number of transmit antennas, for example, one for WiMAX. The base station's array (118, 120, 122, 124) may be configured for a full array transmitting mode (800, 900) or a sub-array transmitting mode (1200, 1300).
(FR) Spécifiquement, l'invention concerne un procédé et un système qui mettent en œuvre une combinaison MIMO et une formation de faisceau dans une station de base (102) sur la base d'un sondage de canal de liaison montante (ULCS) à partir d'une seule des antennes (132, 134) d'une station mobile (130) et des méthodes d'entrées multiples, sorties multiples (MIMO) en boucle fermée sur la base de la décomposition en valeurs singulières (SVD) de la matrice de canaux. L'ULCS est limité à un sondage et le canal utilise un nombre d'antennes d'émission inférieur à un nombre optimal, par exemple, une pour WiMAX. Le réseau (118, 120, 122, 124) de la station de base peut être configuré pour un mode d'émission de réseau complet (800, 900) ou un mode d'émission de sous-réseau (1200, 1300).
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (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, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, 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)