METHOD FOR OPERATING IN POWER-SAVE MODE IN WIRELESS LAN SYSTEM AND APPARATUS FOR METHOD

A method for a station (STA), which supports a high efficiency physical layer protocol data unit (HE PPDU), for operating in a power-save (PS) mode in a wireless LAN system according to one embodiment of the present invention comprises the steps of: receiving a PPDU; decoding at least a part of the...

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Bibliographic Details
Main Authors KIM, Jeongki, RYU, Kiseon, CHO, Hangyu
Format Patent
LanguageEnglish
French
Korean
Published 26.05.2017
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Summary:A method for a station (STA), which supports a high efficiency physical layer protocol data unit (HE PPDU), for operating in a power-save (PS) mode in a wireless LAN system according to one embodiment of the present invention comprises the steps of: receiving a PPDU; decoding at least a part of the PPDU; and operating in a doze state until the end of the PPDU on the basis of the result of decoding at least a part of the PPDU, wherein if the PPDU is configured as a very high throughput (VHT) PPDU, which is a legacy format compared to the HE PPDU, and the VHT PPDU is determined to be an uplink frame transmitted to an access point (AP) by another STA belonging to the same basic service set (BSS) as the STA, then the STA can operate in a doze state until the end of the PPDU. Un mode de réalisation de la présente invention concerne un procédé permettant à une station (STA), prenant en charge une unité de données de protocole de couche physique haute efficacité (HE PPDU), de fonctionner en mode d'économie d'énergie (PS) dans un système LAN sans fil. Le procédé comprend les étapes consistant à : recevoir une PPDU ; décoder au moins une partie de la PPDU ; et fonctionner dans un état de repos jusqu'à la fin de la PPDU, sur la base du résultat de décodage d'au moins une partie de la PPDU. Si la PPDU est configurée comme une PPDU très haut débit (VHT), qui est un format patrimonial comparé à la PPDU HE, et que la PPDU VHT est déterminée comme étant une trame de liaison montante transmise à un point d'accès (AP) par une autre STA appartenant au même ensemble de services de base (BSS) que la STA, la STA peut fonctionner dans un état de repos jusqu'à la fin de la PPDU. 본 발명의 일 실시예에 따른 무선랜 시스템에서 HE PPDU(high efficiency physical layer protocol data unit)를 지원하는 스테이션(STA)이 PS(power save) 모드로 동작하는 방법은, PPDU를 수신하는 단계; 상기 PPDU의 적어도 일부를 디코딩 하는 단계; 및 상기 PPDU의 적어도 일부를 디코딩한 결과에 기반하여, 상기 PPDU의 종료(end)까지 도즈 상태(doze state)로 동작하는 단계를 포함하되, 상기 PPDU가 상기 HE PPDU 보다 레거시 포맷인 VHT(very high throughput) PPDU로 설정되고, 상기 VHT PPDU가 상기 STA과 동일한 BSS(basic service set)에 속하는 다른 STA이 엑세스 포인트(AP)로 전송한 상향링크 프레임이라고 판단되면, 상기 STA은 상기 PPDU의 종료까지 도즈 상태로 동작할 수 있다.
Bibliography:Application Number: WO2016KR13324