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1. (WO2017171486) METHOD FOR TRANSMITTING FEEDBACK INFORMATION FOR DM-RS BASED OPEN-LOOP DOWNLINK TRANSMISSION IN WIRELESS COMMUNICATION SYSTEM, AND APPARATUS THEREFOR
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.:    WO/2017/171486    International Application No.:    PCT/KR2017/003571
Publication Date: 05.10.2017 International Filing Date: 31.03.2017
IPC:
Applicants: LG ELECTRONICS INC. [KR/KR]; 128, Yeoui-daero Yeongdeungpo-gu Seoul 07336 (KR)
Inventors: KIM, Hyungtae; (KR).
KIM, Kijun; (KR).
PARK, Jonghyun; (KR).
PARK, Haewook; (KR)
Agent: KIM, Yong In; KBK & Associates, 7th Floor, 82, Olympic-ro Songpa-ku, Seoul 05556 (KR)
Priority Data:
62/316,549 31.03.2016 US
62/317,448 01.04.2016 US
62/347,596 08.06.2016 US
62/369,757 02.08.2016 US
62/397,898 21.09.2016 US
62/401,866 29.09.2016 US
Title (EN) METHOD FOR TRANSMITTING FEEDBACK INFORMATION FOR DM-RS BASED OPEN-LOOP DOWNLINK TRANSMISSION IN WIRELESS COMMUNICATION SYSTEM, AND APPARATUS THEREFOR
(FR) PROCÉDÉ DE TRANSMISSION D'INFORMATIONS EN RETOUR POUR UNE TRANSMISSION EN LIAISON DESCENDANTE À BOUCLE OUVERTE BASÉE DM-RS DANS UN SYSTÈME DE COMMUNICATION SANS FIL, ET APPAREIL ASSOCIÉ
(KO) 무선 통신 시스템에서 DM-RS 기반 개루프 하향링크 전송을 위한 피드백 정보 송신 방법 및 이를 위한 장치
Abstract: front page image
(EN)The present application provides a method for reporting channel status information (CSI) for downlink transmission to an eNode B (eNB) by a user equipment (UE) in a wireless communication system. Specifically, the method comprises the steps of: receiving a channel status information-reference signal (CSI-RS) from the eNB; calculating the CSI on the basis of the CSI-RS under the assumption that a dual-precoder including a first precoder and a second precoder is applied; and reporting the CSI to the eNB, wherein the step of calculating the CSI includes a step for assuming that at least one of the first precoder and the second precoder is cyclically employed from a predetermined precoder candidate set on the basis of a predetermined resource unit; and information associated with the at least one precoder and information associated with the predetermined precoder candidate set are provided from the eNB through radio resource control (RRC) layer signaling.
(FR)La présente invention concerne un procédé permettant à un équipement d'utilisateur (UE) de rapporter des informations d'état de canal (CSI) pour une transmission de liaison descendante à un nœud B évolué (eNB), dans un système de communication sans fil. De façon plus spécifique, le procédé comprend les étapes consistant à : recevoir un signal de référence d'informations d'état de canal (CSI-RS), de l'eNB ; calculer les CSI sur la base du CSI-RS dans l'hypothèse où un précodeur double comprenant un premier précodeur et un second précodeur est appliqué ; et rapporter les CSI à l'eNB, l'étape de calcul des CSI comprenant une étape consistant à supposer qu'au moins l'un du premier précodeur et du second précodeur est utilisé de façon cyclique parmi un ensemble de précodeurs candidats prédéterminé sur la base d'une unité de ressource prédéterminée ; et fournir des informations associées au ou aux précodeurs et des informations associées à l'ensemble de précodeurs candidats prédéterminé, depuis l'eNB, via une signalisation de couche de gestion des ressources radio (RRC).
(KO)본 출원에서는 무선 통신 시스템에서 단말이 기지국으로 하향링크 전송을 위하여 CSI (Channel Status Information)를 보고하는 방법이 개시된다. 구체적으로, 상기 방법은, 상기 기지국으로부터 CSI-RS (Channel Status Information-Reference Signal)를 수신하는 단계; 제 1 프리코더 및 제 2 프리코더로 구성되는 듀얼 프리코더가 적용되었다는 가정하에, 상기 CSI-RS에 기반하여 상기 CSI를 산출하는 단계; 및 상기 CSI를 상기 기지국으로 보고하는 단계를 포함하고, 상기 CSI를 산출하는 단계는, 상기 제 1 프리코더 및 상기 제 2 프리코더 중 적어도 하나의 프리코더는, 기 결정된 자원 단위로 소정의 프리코더 후보 집합 내에서 순환 적용되는 것으로 가정하는 단계를 포함하며, 상기 적어도 하나의 프리코더에 관한 정보 및 상기 소정의 프리코더 후보 집합에 관한 정보는 RRC (radio resource control) 계층 시그널링을 통하여 상기 기지국으로부터 제공되는 것을 특징으로 한다.
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, DJ, 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, KH, KN, KP, KR, KW, 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 (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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)