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1. (WO2010148554) METHOD AND DEVICE FOR SIGNAL TRANSMISSION IN TIME-DIVISION DUPLEX MIMO SYSTEM
PCT Biblio. Data
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Latest bibliographic data on file with the International Bureau
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Pub. No.:
WO/2010/148554
International Application No.:
PCT/CN2009/072406
Publication Date:
29.12.2010
International Filing Date:
23.06.2009
IPC:
H04B 7/04
(2006.01),
H04W 28/06
(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
28
Network traffic or resource management
02
Traffic management, e.g. flow control or congestion control
06
Optimising, e.g. header compression, information sizing
Applicants:
ALCATEL-LUCENT SHANGHAI BELL CO., LTD.
[CN/CN]; No. 388, Ningqiao Road, Pudong Jinqiao Shanghai 201206 (CN)
(CN only)
.
ALCATEL LUCENT
[FR/FR]; 54, Rue La Boétie F-75008 Paris (FR)
(AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BE, BF, BG, BH, BJ, BR, BW, BY, BZ, CA, CF, CG, CH, CI, CL, CM, CO, CR, CU, CY, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, FR, GA, GB, GD, GE, GH, GM, GN, GQ, GR, GT, GW, HN, HR, HU, ID, IE, IL, IN, IS, IT, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MC, MD, ME, MG, MK, ML, MN, MR, MT, MW, MX, MY, MZ, NA, NE, NG, NI, NL, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SI, SK, SL, SM, SN, ST, SV, SY, SZ, TD, TG, TJ, TM, TN, TR, TT, TZ, UA, UG, UZ, VC, VN, YU, ZA, ZM, ZW only)
.
LUO, Qinglin
[CN/CN]; (CN)
(For US Only)
.
SHI, Jing
[CN/CN]; (CN)
(For US Only)
Inventors:
LUO, Qinglin
; (CN).
SHI, Jing
; (CN)
Agent:
KING & WOOD PRC LAWYERS
; 20th Floor, East Tower, World Financial Centre No.1 Dongsanhuan Zhonglu, Chaoyang District Beijing 100020 (CN)
Priority Data:
Title
(EN)
METHOD AND DEVICE FOR SIGNAL TRANSMISSION IN TIME-DIVISION DUPLEX MIMO SYSTEM
(FR)
PROCÉDÉ ET DISPOSITIF D'ÉMISSION DE SIGNAUX DANS UN SYSTÈME MIMO À DUPLEXAGE PAR RÉPARTITION TEMPORELLE
(ZH)
时分双工复用MIMO系统中的信号发送方法及装置
Abstract:
(EN)
The invention relates to a method and device for signal transmission in time division duplex (TDD) multiple-input multiple-output (MIMO) system. According to the first aspect of the invention, a method for transmitting signals in the base station of TDD MIMO system is provided, which includes the following steps: A. receiving signals of a user terminal of Space Division Multiplexing (SDM) packets, and estimating the transmission characteristics of uplink channel transmission according to the received signals; B. determining the reciprocal calibration information between the transmission characteristics of uplink channel and the transmission characteristics of downlink channel; C. according to the characteristics of uplink channel and the calibration information, determining the downlink precoding matrix by using the zero-forcing algorithm, and according to the determined downlink precoding matrix, transmitting downlink signals to the user terminal of SDM packets; wherein, the step B further includes receiving the information which is fed back by the user terminal of SDM packets and relates to the downlink vector channel matrix, and updating the calibration information selectively according to the information which relates to the downlink vector channel matrix.
(FR)
L'invention concerne un procédé et un dispositif d'émission de signaux dans un système entrée multiple sortie multiple (MIMO) à duplexage par répartition temporelle (TDD). Selon le premier aspect de l'invention, un procédé d'émission de signaux dans la station de base du système MIMO TDD comprend les étapes suivantes : A. la réception de signaux d'un terminal utilisateur de paquets de multiplexage par répartition spatiale (SDM), et l'estimation des caractéristiques de transmission de la transmission dans le canal de liaison montante conformément aux signaux reçus ; B. la détermination des informations d'étalonnage réciproque entre les caractéristiques de transmission du canal de liaison montante et les caractéristiques de transmission du canal de liaison descendante ; C. selon les caractéristiques du canal de liaison montante et les informations d'étalonnage, la détermination de la matrice de codage préalable de liaison descendante par l'utilisation de l'algorithme de forçage à zéro, et selon la matrice de codage préalable de liaison descendante déterminée, l'émission de signaux de liaison descendante destinés au terminal utilisateur de paquets SDM. L'étape B comprend en outre la réception des informations qui sont renvoyées par le terminal utilisateur de paquets SDM et concerne la matrice de canal de vecteur de liaison descendante, et la mise à jour des informations d'étalonnage de façon sélective selon les informations qui concernent la matrice de canal de vecteur de liaison descendante.
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 (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, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language:
Chinese (
ZH
)
Filing Language:
Chinese (
ZH
)