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1. (WO2017034237) METHOD FOR CHANNEL ACCESS IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR PERFORMING SAME
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Pub. No.: WO/2017/034237 International Application No.: PCT/KR2016/009188
Publication Date: 02.03.2017 International Filing Date: 19.08.2016
IPC:
H04W 74/08 (2009.01) ,H04W 74/00 (2009.01) ,H04W 88/08 (2009.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
W
WIRELESS COMMUNICATION NETWORKS
74
Wireless channel access, e.g. scheduled or random access
08
Non-scheduled access, e.g. random access, ALOHA or CSMA [Carrier Sense Multiple Access]
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
W
WIRELESS COMMUNICATION NETWORKS
74
Wireless channel access, e.g. scheduled or random access
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
W
WIRELESS COMMUNICATION NETWORKS
88
Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
08
Access point devices
Applicants:
엘지전자 주식회사 LG ELECTRONICS INC. [KR/KR]; 서울시 영등포구 여의대로 128 128, Yeoui-daero Yeongdeungpo-gu Seoul 07336, KR
Inventors:
박한준 PARK, Hanjun; KR
안준기 AHN, Joonkui; KR
김선욱 KIM, Seonwook; KR
Agent:
김용인 KIM, Yong In; KR
방해철 BAHNG, Hae Cheol; KR
Priority Data:
62/207,93721.08.2015US
62/289,88201.02.2016US
62/290,91103.02.2016US
Title (EN) METHOD FOR CHANNEL ACCESS IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR PERFORMING SAME
(FR) PROCÉDÉ D'ACCÈS DE CANAL DANS UN SYSTÈME DE COMMUNICATION SANS FIL ET APPAREIL POUR EFFECTUER CELUI-CI
(KO) 무선 통신 시스템에서 채널 엑세스 방법 및 이를 수행하는 장치
Abstract:
(EN) A method for performing channel access in an unlicensed band by a base station in a wireless communication system according to an embodiment of the present invention may comprise the steps of: sensing, in an unlicensed band, a carrier for transmitting a downlink signal; and transmitting the downlink signal when power detected by sensing the carrier is less than an energy detection threshold set by the base station, wherein the energy detection threshold is set to be equal to or less than a maximum energy detection threshold determined by the base station, and when another radio access technology (RAT) sharing the carrier may exist, the maximum energy detection threshold is adaptively determined depending on the bandwidth size of the carrier, using the value, in decibels, of the ratio between a reference bandwidth and the bandwidth of the carrier.
(FR) Selon un mode de réalisation de la présente invention, un procédé pour effectuer un accès de canal dans une bande sans licence par une station de base dans un système de communication sans fil peut comprendre les étapes suivantes : détecter, dans une bande sans licence, une porteuse de transmission d'un signal de liaison descendante; et transmettre le signal de liaison descendante lorsque la puissance détectée par la détection de la porteuse est inférieure à un seuil de détection d'énergie défini par la station de base, où le seuil de détection d'énergie est défini pour être inférieur ou égal à un seuil de détection d'énergie maximal déterminé par la station de base, et lorsqu'une autre technologie d'accès radio (RAT) partageant la porteuse peut exister, le seuil de détection d'énergie maximal est déterminé de manière adaptative en fonction de la taille de la bande passante de la porteuse, en utilisant la valeur, en décibels, du rapport entre une bande passante de référence et la bande passante de la porteuse.
(KO) 본 발명의 일 실시예에 따른 무선 통신 시스템에서의 기지국이 비면허 대역 상에서 채널 엑세스를 수행하는 방법에 있어서, 하향링크 신호를 송신하기 위한 비 면허 대역의 반송파를 센싱하는 단계; 및 상기 반송파를 센싱하여 검출된 전력이 상기 기지국이 설정한 에너지 검출 임계치(energy detection threshold) 미만인 경우, 상기 하향링크 신호를 송신하는 단계를 포함하되, 상기 에너지 검출 임계치는, 상기 기지국이 결정한 최대 에너지 검출 임계치 이하로 설정되고, 상기 반송파를 공유하는 다른 RAT(radio access technology)이 존재할 수 있는 경우, 상기 최대 에너지 검출 임계치는, 기준 대역폭 대 상기 반송파의 대역폭 간의 비율의 데시벨 값을 이용하여 상기 반송파의 대역폭 크기에 적응적으로 결정될 수 있다.
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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, KR, 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)