METHOD FOR TRANSMITTING PACKET FOR WUR TERMINAL IN WIRELESS LAN SYSTEM AND WIRELESS TERMINAL USING SAME

• Main Authors: KIM, Jeongki, RYU, Kiseon, PARK, Hyunhee, KIM, Suhwook
• Format: Patent
• Language: English; French; Korean
• Published: 12.07.2018
• Subjects: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION ANDCOMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION ANDCOMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THIR OWNENERGY USE; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION; WIRELESS COMMUNICATIONS NETWORKS

According to the present embodiment, a method for transmitting a packet for a WUR terminal comprising a main radio module and a WUR module in a wireless LAN system comprises the steps of: allowing an AP to transmit a multi-user wake-up packet (MU WUP) for a plurality of first WUR terminals associated with a first WUR channel among a plurality of WUR channels in a preset 20 MHz channel, wherein the MU WUP includes a legacy preamble modulated according to an OFDM scheme and a payload modulated according to an OOK scheme, the legacy preamble is transmitted on the basis of the 20 MHz channel for a third party terminal, the payload is transmitted on the basis of the first WUR channel, and the payload indicates that a main radio module included in each of the plurality of first WUR terminals enters an activated state; and allowing the AP to transmit a downlink data packet for at least one of the plurality of first WUR terminals. L'invention concerne, selon le présent mode de réalisation, un procédé de transmission d'un paquet pour un terminal WUR comprenant un module radio principal et un module WUR dans un système LAN sans fil et qui comprend les étapes consistant : à permettre à un AP de transmettre un paquet de réveil multiutilisateur (MU WUP) pour une pluralité de premiers terminaux WUR associés à un premier canal WUR parmi une pluralité de canaux WUR dans un canal de 20 MHz prédéfini, le WUP MU comprenant un préambule existant modulé selon un schéma OFDM et une charge utile modulée selon un schéma OOK, le préambule existant étant transmis sur la base du canal de 20 MHz pour un terminal tiers, la charge utile étant transmise sur la base du premier canal WUR, et la charge utile indiquant qu'un module radio principal inclus dans chaque terminal parmi la pluralité de premiers terminaux WUR entre dans un état activé ; et à permettre à l'AP de transmettre un paquet de données de liaison descendante pour au moins un terminal WUR parmi la pluralité de premiers terminaux WUR. 본 실시 예에 따른 무선랜 시스템에서 메인 라디오 모듈 및 WUR 모듈을 포함하는 WUR 단말을 위한 패킷을 송신하는 방법은, AP에 의해, 미리 설정된 20MHz 채널 상의 복수의 WUR 채널 중 제1 WUR 채널과 연관된 복수의 제1 WUR 단말을 위한 멀티-유저 웨이크업 패킷(MU WUP)을 송신하되, 멀티-유저 웨이크업 패킷은 OFDM 기법에 따라 변조된 레가시 프리앰블 및 OOK 기법에 따라 변조된 페이로드를 포함하고, 레가시 프리앰블은 써드 파티 단말을 위해 20MHz 채널을 기반으로 송신되고, 페이로드는 제1 WUR 채널을 기반으로 송신되고, 페이로드는 복수의 제1 WUR 단말 각각에 포함된 메인 라디오 모듈이 활성화 상태로 진입하도록 지시하는, 단계; 및 AP에 의해, 복수의 제1 WUR 단말 중 적어도 하나를 위한 하향링크 데이터 패킷을 송신하는 단계를 포함한다.