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1. WO2020040539 - METHOD FOR TRANSMITTING AND RECEIVING CHANNEL STATE INFORMATION IN WIRELESS COMMUNICATION SYSTEM, AND DEVICE FOR SAME

Publication Number WO/2020/040539
Publication Date 27.02.2020
International Application No. PCT/KR2019/010629
International Filing Date 21.08.2019
IPC
H04W 24/10 2009.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
24Supervisory, monitoring or testing arrangements
10Scheduling measurement reports
H04B 17/309
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
17Monitoring; Testing
30of propagation channels
309Measuring or estimating channel quality parameters
H04B 7/06 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
06at the transmitting station
H04L 5/00 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
CPC
H04B 17/24
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
17Monitoring; Testing
20of receivers
24with feedback of measurements to the transmitter
H04B 17/309
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
17Monitoring; Testing
30of propagation channels
309Measuring or estimating channel quality parameters
H04B 7/0626
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
06at the transmitting station
0613using simultaneous transmission
0615of weighted versions of same signal
0619using feedback from receiving side
0621Feedback content
0626Channel coefficients, e.g. channel state information [CSI]
H04B 7/0695
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
06at the transmitting station
0686Hybrid systems, i.e. switching and simultaneous transmission
0695using beam selection
H04L 5/0048
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
003Arrangements for allocating sub-channels of the transmission path
0048Allocation of pilot signals, i.e. of signals known to the receiver
H04L 5/0064
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
003Arrangements for allocating sub-channels of the transmission path
0058Allocation criteria
0064Rate requirement of the data, e.g. scalable bandwidth, data priority
Applicants
  • 엘지전자 주식회사 LG ELECTRONICS INC. [KR]/[KR]
Inventors
  • 김형태 KIM, Hyungtae
  • 강지원 KANG, Jiwon
Agents
  • 특허법인 로얄 ROYAL PATENT & LAW OFFICE
Priority Data
10-2018-011446721.09.2018KR
10-2018-011659828.09.2018KR
62/720,86521.08.2018US
62/742,33706.10.2018US
Publication Language Korean (ko)
Filing Language Korean (KO)
Designated States
Title
(EN) METHOD FOR TRANSMITTING AND RECEIVING CHANNEL STATE INFORMATION IN WIRELESS COMMUNICATION SYSTEM, AND DEVICE FOR SAME
(FR) PROCÉDÉ DE TRANSMISSION ET DE RÉCEPTION D'INFORMATIONS D'ÉTAT DE CANAL DANS UN SYSTÈME DE COMMUNICATIONS SANS FIL ET DISPOSITIF ASSOCIÉ
(KO) 무선 통신 시스템에서 채널 상태 정보를 송수신하는 방법 및 이를 위한 장치
Abstract
(EN) A method by which a terminal reports channel state information in a wireless communication system. Particularly, a method by which a terminal transmits power measurement information related to beam reporting in a wireless communication system comprises the steps of: receiving downlink control information (DCI) triggering the reporting of the power measurement information; receiving a downlink reference signal for reporting the power measurement information; and transmitting, to a base station, the power measurement information determined on the basis of the received downlink reference signal, wherein the minimum required time for the reporting of the power measurement information i) can be calculated as the sum of a first minimum required time from the last time of the downlink reference signal to the transmission time of the power measurement information and a second minimum required time between the receptions of the DCI triggering the downlink reference signal and the downlink reference signal or ii) can be calculated on the basis of a preset threshold value related to the reporting of the power measurement information.
(FR) L'invention concerne un procédé par lequel un terminal signale des informations d'état de canal dans un système de communications sans fil. En particulier, un procédé par lequel un terminal transmet des informations de mesure de puissance liées à un signalement par faisceaux dans un système de communication sans fil comprend les étapes suivantes consistant : à recevoir des informations de commande de liaison descendante (DCI) déclenchant le signalement des informations de mesure de puissance ; à recevoir un signal de référence de liaison descendante, permettant de signaler les informations de mesure de puissance ; et à transmettre, à une station de base, des informations de mesure de puissance déterminées en fonction du signal de référence de liaison descendante reçu, le temps minimal requis pour le signalement des informations de mesure de puissance i) pouvant se calculer comme la somme d'un premier temps minimal requis, du dernier temps du signal de référence de liaison descendante au temps de transmission des informations de mesure de puissance, et d'un second temps minimal requis, entre les réceptions des DCI déclenchant le signal de référence de liaison descendante et le signal de référence de liaison descendante ou ii) pouvant se calculer en fonction d'une valeur prédéfinie de seuil, liée au signalement des informations de mesure de puissance.
(KO) 무선 통신 시스템에서 단말이 채널 상태 정보(channel state information) 보고를 수행하는 방법. 구체적으로, 무선 통신 시스템에서 단말이 빔 보고와 관련된 전력 측정 정보를 전송하는 방법은, 상기 전력 측정 정보의 보고를 트리거링하는 하향링크 제어 정보(downlink control information, DCI)를 수신하는 단계; 상기 전력 측정 정보의 보고를 위한 하향링크 참조 신호(downlink reference signal)를 수신하는 단계; 및 상기 수신된 하향링크 참조 신호에 기반하여 결정된 전력 측정 정보를 기지국으로 전송하는 단계를 포함하되; 상기 전력 측정 정보의 보고를 위한 최소 요구 시간은, i) 상기 하향링크 참조 신호의 마지막 시점부터 상기 전력 측정 정보의 전송 시점까지의 제1 최소 요구 시간과 상기 하향링크 참조 신호를 트리거링하는 DCI와 상기 하향링크 참조 신호의 수신 간의 제2 최소 요구 시간의 합으로 산출되거나, ii) 상기 전력 측정 정보의 보고와 관련하여 미리 설정된 임계 값에 기반하여 산출될 수 있다.
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