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1. (WO2018143716) PRE-CODING METHOD FOR REMOVING INTERFERENCE IN FULL DUPLEX COMMUNICATION, AND BASE STATION AND USER TERMINAL FOR PERFORMING SAME
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2018/143716 International Application No.: PCT/KR2018/001434
Publication Date: 09.08.2018 International Filing Date: 02.02.2018
IPC:
H04J 11/00 (2006.01) ,H04J 13/18 (2011.01) ,H04J 13/12 (2011.01)
Applicants: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY[KR/KR]; (Sinchon-dong, Yonsei University), 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, KR
Inventors: KIM, Dong Ku; KR
KIM, Kwang-Soon; KR
YANG, Min Ho; KR
Agent: MIN, Young Joon; KR
Priority Data:
10-2017-001546503.02.2017KR
10-2018-000391111.01.2018KR
Title (EN) PRE-CODING METHOD FOR REMOVING INTERFERENCE IN FULL DUPLEX COMMUNICATION, AND BASE STATION AND USER TERMINAL FOR PERFORMING SAME
(FR) PROCÉDÉ DE PRÉCODAGE POUR SUPPRIMER UN BROUILLAGE DANS UNE COMMUNICATION EN DUPLEX INTÉGRAL, ET STATION DE BASE ET TERMINAL UTILISATEUR POUR LA MISE EN ŒUVRE DE CE PROCÉDÉ
(KO) 전이중 통신에서 간섭 제거를 위한 프리코딩 방법 및 이를 수행하는 기지국과 사용자 단말
Abstract: front page image
(EN) Disclosed are a pre-coding method for removing interference in full duplex communication, and a base station performing same. The disclosed base station, which is a full duplex-type base station for removing signal interference between half duplex-type an uplink terminal and a downlink terminal, includes: a channel estimation unit which estimates channel coefficients between the base station, uplink terminal and downlink terminal; a reception precoding matrix generation unit which generates a reception precoding matrix on the basis of a first code and a channel with the uplink terminal; and a transmission precoding matrix generation unit which generates a transmission precoding matrix on the basis of a second code that is orthogonal to the first code, and a channel with the downlink terminal, wherein the base station is characterized in that the first code is used for generating a transmission signal of the uplink terminal, the second code is used for removing the transmission signal—including the first code—of the uplink terminal, which is received as an interference signal at the time the downlink terminal receives a signal from the base station. According to the disclosed base station, in a system including the full duplex-type base station and the half duplex-type user terminal, interference between an uplink terminal and a downlink terminal can be efficiently removed.
(FR) L'invention concerne un procédé de précodage pour supprimer un brouillage dans une communication en duplex intégral, et une station de base pour sa mise en œuvre. La station de base selon l'invention, qui est une station de base de type duplex intégral pour supprimer une interférence de signal entre un terminal de liaison montante de type semi-duplex et un terminal de liaison descendante, comprend : une unité d'estimation de canal qui estime des coefficients de canal entre la station de base, de liaison montante et de liaison descendante; une unité de génération de matrice de précodage de réception qui génère une matrice de précodage de réception sur la base d'un premier code et d'un canal avec le terminal de liaison montante; et une unité de génération de matrice de précodage de transmission qui génère une matrice de précodage de transmission sur la base d'un second code qui est orthogonal au premier code, et un canal avec le terminal de liaison descendante, la station de base étant caractérisée en ce que le premier code est utilisé pour générer un signal de transmission du terminal de liaison montante, le second code est utilisé pour supprimer le signal de transmission-comprenant le premier code du terminal de liaison montante, qui est reçu en tant que signal d'interférence au moment où le terminal de liaison descendante reçoit un signal de la station de base. Selon la station de base de l'invention, dans un système comprenant la station de base de type duplex intégral et le terminal utilisateur de type semi-duplex, un brouillage entre un terminal de liaison montante et un terminal de liaison descendante peut être efficacement éliminé.
(KO) 전이중 통신에서 간섭 제거를 위한 프리코딩 방법 및 이를 수행하는 기지국이 개시된다. 개시된 기지국은 하프 듀플렉스(half duplex) 방식의 상향 링크 단말과 하향 링크 단말간 신호 간섭을 제거하기 위한 풀 듀플렉스(full duplex) 방식의 기지국에 있어서, 상기 기지국과 상향 링크 단말들 및 하향 링크 단말들간의 채널 계수를 추정하는 채널 추정부; 제1 코드 및 상기 상향 링크 단말과의 채널에 기초하여 수신 프리코딩 행렬을 생성하는 수신 프리코딩 행렬 생성부; 및 상기 제1 코드에 직교하는 제2 코드 및 상기 하향 링크 단말과의 채널에 기초하여 송신 프리코딩 행렬을 생성하는 송신 프리코딩 행렬 생성부를 포함하되, 상기 제1 코드는 상기 상향 링크 단말의 송신 신호 생성에 이용되고, 상기 제2 코드는 상기 하향 링크 단말이 상기 기지국으로부터 신호를 수신 시 간섭 신호로 수신되는 상기 상향 링크 단말의 송신 신호 - 상기 제1 코드를 포함함 - 를 제거하기 위해 사용되는 것을 특징으로 한다. 개시된 기지국에 따르면, 풀 듀플렉스 방식의 기지국과 하프 듀플렉스 방식의 사용자 단말을 포함하는 시스템에서, 상향 링크 단말과 하향 링크 단말간 간섭을 효율적으로 제거할 수 있다.
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, JO, JP, KE, KG, KH, KN, KP, 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 (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)