Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO2016052868) BIDIRECTIONAL COMMUNICATION SYSTEM AND BIDIRECTIONAL COMMUNICATION METHOD FOR PLURALITY OF USERS
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2016/052868 International Application No.: PCT/KR2015/009249
Publication Date: 07.04.2016 International Filing Date: 02.09.2015
IPC:
H04B 7/06 (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
Applicants:
고려대학교 산학협력단 KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION [KR/KR]; 서울시 성북구 안암로 145, 고려대학교 (안암동5가) (Anam-dong 5-ga), Korea University,145, Anam-ro Seongbuk-gu Seoul 02841, KR
Inventors:
고영채 KO, Young Chai; KR
김명진 KIM, Myeong Jin; KR
Agent:
특허법인 엠에이피에스 MAPS INTELLECTUAL PROPERTY LAW FIRM; 서울시 서초구 사평대로 343, 4층(반포동, 제일약품빌딩) (Jeil Pharmaceutical Bldg., Banpo-dong), 4F, 343, Sapyoung-daero Seocho-gu Seoul 06543, KR
Priority Data:
10-2014-013007929.09.2014KR
Title (EN) BIDIRECTIONAL COMMUNICATION SYSTEM AND BIDIRECTIONAL COMMUNICATION METHOD FOR PLURALITY OF USERS
(FR) SYSTÈME DE COMMUNICATION BIDIRECTIONNELLE ET PROCÉDÉ DE COMMUNICATION BIDIRECTIONNELLE POUR PLUSIEURS UTILISATEURS
(KO) 다수의 사용자를 위한 양방향 통신시스템 및 양방향 통신방법
Abstract:
(EN) The present invention provides a base station and a method for supporting bidirectional communication for a plurality of users. A base station for supporting bidirectional communication for a plurality of users according to an embodiment of the present invention comprises: a transmitter which is connected to a plurality of antennas for transmitting a downlink signal to a plurality of users respectively, and applies a precoding matrix for the downlink signal; and a receiver which is connected to the plurality of antennas receiving an uplink signal from the plurality of users, respectively and applies a beamforming filter to the uplink signal. Here, the precoding matrix includes a self-interference alignment matrix for aligning, in a specific sub-space predefined in relation to the receiver, a plurality of self-interference signals caused by transmission of the downlink signal during reception of the uplink signal as the reception of the uplink signal and the transmission of the downlink signal simultaneously occur, and the beamforming filter includes a self-interference cancellation filter consisting of a null space of the specific sub-space.
(FR) La présente invention concerne une station de base et un procédé permettant de prendre en charge une communication bidirectionnelle pour plusieurs utilisateurs. Une station de base pour prendre en charge la communication bidirectionnelle pour plusieurs utilisateurs selon un mode de réalisation de la présente invention comprend: un émetteur qui est connecté à une pluralité d'antennes pour transmettre un signal de liaison descendante à plusieurs utilisateurs, respectivement, et qui applique une matrice de précodage pour le signal de liaison descendante; et un récepteur qui est relié à la pluralité d'antennes recevant un signal de liaison montante à partir de la pluralité d'utilisateurs, respectivement, et qui applique un filtre de formation de faisceau au signal de liaison montante. Dans le cas présent, la matrice de précodage comprend une matrice d'alignement à auto-interférence pour aligner, dans un sous-espace spécifique prédéfini en fonction du récepteur, une pluralité de signaux d'auto-interférence dus à la transmission du signal de liaison descendante pendant la réception du signal de liaison montante lorsque la réception du signal de liaison montante et la transmission du signal liaison descendante se produisent simultanément, et le filtre de formation de faisceau comprend un filtre d'annulation d'auto-interférence constitué d'un espace nul du sous-espace spécifique.
(KO) 본 발명은 다수의 사용자를 위한 양방향 통신을 지원하는 기지국 및 방법에 대해 개시한다. 본 발명의 일 실시예에 따른 다수의 사용자를 위한 양방향 통신을 지원하는 기지국은, 다수의 사용자에게 하향링크 신호를 각각 송신하는 다수의 안테나와 연결되고, 하향링크 신호에 대해 프리코딩(Precoding) 행렬을 적용시키는 송신기 및 다수의 사용자로부터 상향링크 신호를 각각 수신하는 다수의 안테나와 연결되고, 상향링크 신호에 대해 빔포밍 필터를 적용시키는 수신기를 포함한다. 이때, 프리코딩 행렬은 상향링크 신호의 수신과 하향링크 신호의 송신이 동시에 이루어짐에 따라 상향링크 신호의 수신시 하향링크 신호의 송신에 의해 발생된 다수의 자체 간섭 신호를 수신기와 관련하여 기정의된 특정 서브공간에 정렬시키는 자체 간섭정렬 행렬을 포함하고, 빔포밍 필터는 상기 특정 서브공간의 영공간으로 이루어진 자체 간섭제거 필터를 포함한다.
front page image
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, 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, IR, IS, JP, KE, KG, KN, KP, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, 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, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, 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, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Korean (KO)
Filing Language: Korean (KO)