WO2011149271A3 - 무선랜 시스템에서 파워 세이브 모드 운영 방법 및 장치 - Google Patents

무선랜 시스템에서 파워 세이브 모드 운영 방법 및 장치 Download PDF

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Publication number
WO2011149271A3
WO2011149271A3 PCT/KR2011/003842 KR2011003842W WO2011149271A3 WO 2011149271 A3 WO2011149271 A3 WO 2011149271A3 KR 2011003842 W KR2011003842 W KR 2011003842W WO 2011149271 A3 WO2011149271 A3 WO 2011149271A3
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WO
WIPO (PCT)
Prior art keywords
station
downlink transmission
power save
save mode
basis
Prior art date
Application number
PCT/KR2011/003842
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English (en)
French (fr)
Other versions
WO2011149271A2 (ko
Inventor
노유진
이대원
석용호
Original Assignee
엘지전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to US13/700,123 priority Critical patent/US9191893B2/en
Publication of WO2011149271A2 publication Critical patent/WO2011149271A2/ko
Publication of WO2011149271A3 publication Critical patent/WO2011149271A3/ko
Priority to US14/883,887 priority patent/US9673879B2/en
Priority to US15/498,143 priority patent/US10085209B2/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
    • H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0452—Multi-user MIMO systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H04W4/08—User group management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0235—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a power saving command
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

무선랜 시스템에서 파워 세이브 모드 운영 방법이 제공된다. 상기 방법은 비 액세스포인트 스테이션(non AP(Access Point) station; STA)의 파워 세이브 모드(Power Save Mode; PSM) 를 포함하는 파워 세이브 멀티 폴(power save multi poll; PSMP) 프레임을 AP와 MIMO(Multiple Input Multiple Output) 페어링된 제1 STA 및 제2 STA에게 전송하되, 상기 PSM 정보는 하향 링크 전송 구간이 시작되는 시점을 지시하는 하향 링크 전송 시작 오프셋(start offset), 상기 하향 링크 전송 구간의 지속 시간을 지시하는 하향 링크 전송 지속 시간(duration) 및 전송 대상 STA 식별 정보를 포함하고, 상기 하향 링크 전송 구간 동안 데이터 프레임을 상기 제1 STA 및 상기 제2 STA에게 MIMO 전송 하는 것을 포함하되, 상기 전송 대상 STA 식별 정보는 상기 AP가 MIMO 전송하는 대상 STA인 제1 STA 및 제2 STA을 포함하는 대상 STA 그룹을 지시하는 그룹 식별자(Group Identifier; Group ID)를 지시한다.
PCT/KR2011/003842 2010-05-26 2011-05-25 무선랜 시스템에서 파워 세이브 모드 운영 방법 및 장치 WO2011149271A2 (ko)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US13/700,123 US9191893B2 (en) 2010-05-26 2011-05-25 Method and apparatus for operating a power save mode in a wireless LAN system
US14/883,887 US9673879B2 (en) 2010-05-26 2015-10-15 Method and apparatus for operating a power save mode in a wireless LAN system
US15/498,143 US10085209B2 (en) 2010-05-26 2017-04-26 Method and apparatus for operating a power save mode in a wireless LAN system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US34825310P 2010-05-26 2010-05-26
US61/348,253 2010-05-26

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US13/700,123 A-371-Of-International US9191893B2 (en) 2010-05-26 2011-05-25 Method and apparatus for operating a power save mode in a wireless LAN system
US14/883,887 Continuation US9673879B2 (en) 2010-05-26 2015-10-15 Method and apparatus for operating a power save mode in a wireless LAN system

Publications (2)

Publication Number Publication Date
WO2011149271A2 WO2011149271A2 (ko) 2011-12-01
WO2011149271A3 true WO2011149271A3 (ko) 2012-04-19

Family

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Application Number Title Priority Date Filing Date
PCT/KR2011/003842 WO2011149271A2 (ko) 2010-05-26 2011-05-25 무선랜 시스템에서 파워 세이브 모드 운영 방법 및 장치

Country Status (2)

Country Link
US (3) US9191893B2 (ko)
WO (1) WO2011149271A2 (ko)

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US8542696B2 (en) 2009-12-16 2013-09-24 Intel Corporation Device, system and method of simultaneously communicating with a group of wireless communication units
US20110149731A1 (en) 2009-12-17 2011-06-23 Gong Michelle X Device, system and method of scheduling communications with a group of wireless communication units
WO2011149271A2 (ko) 2010-05-26 2011-12-01 엘지전자 주식회사 무선랜 시스템에서 파워 세이브 모드 운영 방법 및 장치
US20120207071A1 (en) * 2011-02-16 2012-08-16 Samsung Electronics Co., Ltd. Enhanced power save multi-poll (psmp) protocol for multi-user mimo based wireless local area networks
DE112012002426T5 (de) 2011-06-15 2014-02-27 Lg Electronics Inc. Verfahren zum Senden und Empfangen einer Dateneinheit auf der Grundlage einer Mehrfacheingabe/Mehrfachausgabesendung mit mehreren Benutzern im Uplink und eine Vorrichtung hierfür
RU2625812C2 (ru) 2012-03-06 2017-07-19 Интердиджитал Пэйтент Холдингз, Инк. Способ и устройство для энергосбережения в беспроводной локальной сети
US9510367B2 (en) * 2012-04-28 2016-11-29 Lg Electronics Inc. Method and apparatus for accessing channel in WLAN system
WO2013165162A1 (ko) * 2012-04-30 2013-11-07 엘지전자 주식회사 무선랜 시스템에서 채널 액세스 방법 및 장치
JP6262852B2 (ja) * 2013-11-07 2018-01-17 エルジー エレクトロニクス インコーポレイティド 無線ｌａｎにおけるマルチユーザアップリンク受信方法及び装置
US9755795B2 (en) * 2013-12-18 2017-09-05 Huawei Technologies Co., Ltd. System and method for WLAN OFDMA design of subcarrier groups and frame format
US9420537B2 (en) 2014-03-26 2016-08-16 Intel Corporation Queueing mechanism for client-side network traffic to reduce radio power consumption on mobile clients
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WO2017034081A1 (ko) 2015-08-21 2017-03-02 엘지전자(주) 무선 통신 시스템의 데이터 전송 방법 및 장치
CN106656288B (zh) * 2016-12-29 2020-08-11 电子科技大学 一种基于降低平均误码率上界的导频数据间最优功率分配方法

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Also Published As

Publication number Publication date
US20160036503A1 (en) 2016-02-04
US9673879B2 (en) 2017-06-06
US20170230909A1 (en) 2017-08-10
WO2011149271A2 (ko) 2011-12-01
US20130070658A1 (en) 2013-03-21
US10085209B2 (en) 2018-09-25
US9191893B2 (en) 2015-11-17

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