WO2012057546A3 - 무선랜 시스템에서 데이터 프레임 송수신 방법 및 장치 - Google Patents

무선랜 시스템에서 데이터 프레임 송수신 방법 및 장치 Download PDF

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Publication number
WO2012057546A3
WO2012057546A3 PCT/KR2011/008098 KR2011008098W WO2012057546A3 WO 2012057546 A3 WO2012057546 A3 WO 2012057546A3 KR 2011008098 W KR2011008098 W KR 2011008098W WO 2012057546 A3 WO2012057546 A3 WO 2012057546A3
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Prior art keywords
mimo
field
control information
data block
receivers
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PCT/KR2011/008098
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English (en)
French (fr)
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WO2012057546A2 (ko
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노동욱
강병우
이대원
석용호
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엘지전자 주식회사
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Priority to US13/879,794 priority Critical patent/US9078251B2/en
Publication of WO2012057546A2 publication Critical patent/WO2012057546A2/ko
Publication of WO2012057546A3 publication Critical patent/WO2012057546A3/ko
Priority to US14/723,290 priority patent/US9544030B2/en
Priority to US15/372,136 priority patent/US9807759B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0025—Transmission of mode-switching indication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • 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
    • 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
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0697—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using spatial multiplexing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0041—Arrangements at the transmitter end
    • 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
    • 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
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L2001/0092—Error control systems characterised by the topology of the transmission link
    • H04L2001/0093—Point-to-multipoint
    • 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
    • H04W52/04—TPC
    • H04W52/38—TPC being performed in particular situations
    • H04W52/42—TPC being performed in particular situations in systems with time, space, frequency or polarisation diversity
    • 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]

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)

Abstract

무선랜 시스템에서 전송자에 의해 수행되는 데이터 프레임을 전송 방법이 제공된다. 상기 방법은 적어도 하나 이상의 수신자에게 적어도 하나 이상의 공간 스트림을 통해 각각 전송되는 적어도 하나 이상의 데이터 유닛을 포함하는 데이터 블록을 생성하고, 제1 제어 정보를 상기 적어도 하나 이상의 수신자에게 전송하되, 상기 데이터 유닛에 적용된 인코딩 기법을 지시하는 FEC(forward error correction) 코딩 필드 및 상기 데이터 유닛에 적용된 MCS(modulation and coding scheme)를 지시하는 MCS 필드를 포함하는 제2 제어 정보를 각 수신자에게 전송하고, 및, 상기 데이터 블록을 상기 적어도 하나 이상의 수신자에게 전송하는 것을 포함한다. 상기 제1 제어 정보는 상기 데이터 블록에 대한 길이 지시자, MIMO(multiple input Multiple Output) 지시자 및 공간 스트림 지시 필드를 포함하고, 상기 MIMO 지시자는 상기 데이터 블록이 SU(single user)-MIMO 또는 MU(multi user)-MIMO를 위한 것인지 여부를 지시하고, 상기 공간 스트림 지시 필드는 상기 공간 스트림의 개수에 대한 정보를 포함한다.
PCT/KR2011/008098 2010-10-28 2011-10-27 무선랜 시스템에서 데이터 프레임 송수신 방법 및 장치 WO2012057546A2 (ko)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US13/879,794 US9078251B2 (en) 2010-10-28 2011-10-27 Method and apparatus for transceiving a data frame in a wireless LAN system
US14/723,290 US9544030B2 (en) 2010-10-28 2015-05-27 Method and apparatus for transceiving a data frame in a wireless LAN system
US15/372,136 US9807759B2 (en) 2010-10-28 2016-12-07 Method and apparatus for transceiving a data frame in a wireless LAN system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US40754610P 2010-10-28 2010-10-28
US61/407,546 2010-10-28

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US13/879,794 A-371-Of-International US9078251B2 (en) 2010-10-28 2011-10-27 Method and apparatus for transceiving a data frame in a wireless LAN system
US14/723,290 Continuation US9544030B2 (en) 2010-10-28 2015-05-27 Method and apparatus for transceiving a data frame in a wireless LAN system

Publications (2)

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WO2012057546A2 WO2012057546A2 (ko) 2012-05-03
WO2012057546A3 true WO2012057546A3 (ko) 2012-06-21

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WO2012057546A2 (ko) 2012-05-03
US9078251B2 (en) 2015-07-07
US9544030B2 (en) 2017-01-10
US20150256238A1 (en) 2015-09-10
US9807759B2 (en) 2017-10-31
US20170094646A1 (en) 2017-03-30
US20130208715A1 (en) 2013-08-15

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