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1. WO2012057546 - METHOD AND APPARATUS FOR TRANSCEIVING A DATA FRAME IN A WIRELESS LAN SYSTEM

Publication Number WO/2012/057546
Publication Date 03.05.2012
International Application No. PCT/KR2011/008098
International Filing Date 27.10.2011
IPC
H04B 7/04 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
H04L 1/00 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1Arrangements for detecting or preventing errors in the information received
H04W 84/12 2009.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
84Network topologies
02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN  or WLL
10Small scale networks; Flat hierarchical networks
12WLAN
H04B 7/26 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
24for communication between two or more posts
26at least one of which is mobile
CPC
H04B 7/0413
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
0413MIMO systems
H04B 7/0452
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
0413MIMO systems
0452Multi-user MIMO systems
H04B 7/0617
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
06at the transmitting station
0613using simultaneous transmission
0615of weighted versions of same signal
0617for beam forming
H04B 7/0697
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
06at the transmitting station
0697using spatial multiplexing
H04L 1/0025
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1Arrangements for detecting or preventing errors in the information received
0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
0023characterised by the signalling
0025Transmission of mode-switching indication
H04L 1/0041
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1Arrangements for detecting or preventing errors in the information received
004by using forward error control
0041Arrangements at the transmitter end
Applicants
  • 엘지전자 주식회사 LG ELECTRONICS INC. [KR]/[KR] (AllExceptUS)
  • 노동욱 ROH, Dong Wook [KR]/[KR] (UsOnly)
  • 강병우 KANG, Byeong Woo [KR]/[KR] (UsOnly)
  • 이대원 LEE, Dae Won [KR]/[KR] (UsOnly)
  • 석용호 SEOK, Yong Ho [KR]/[KR] (UsOnly)
Inventors
  • 노동욱 ROH, Dong Wook
  • 강병우 KANG, Byeong Woo
  • 이대원 LEE, Dae Won
  • 석용호 SEOK, Yong Ho
Agents
  • 에스앤아이피 특허법인 S&IP PATENT & LAW FIRM
Priority Data
61/407,54628.10.2010US
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) METHOD AND APPARATUS FOR TRANSCEIVING A DATA FRAME IN A WIRELESS LAN SYSTEM
(FR) PROCÉDÉ ET APPAREIL DE TRANSMISSION/RÉCEPTION D'UNE TRAME DE DONNÉES DANS UN SYSTÈME LAN SANS FIL
(KO) 무선랜 시스템에서 데이터 프레임 송수신 방법 및 장치
Abstract
(EN)
Provided is a method for a transmitter to transmit a data frame in a wireless LAN system. The method comprises: generating a data block including one or more data units, each of which is to be transmitted to one or more receivers through one or more spatial streams; transmitting first control information to said one or more receivers; transmitting second control information to each receiver, wherein the second control information includes a forward error correction (FEC) coding field for indicating the encoding technique applied to the data units and a modulation and coding scheme (MCS) field for indicating the MCS applied to the data units; and transmitting the data block to said one or more receivers. The first control information includes a length indicator, a multiple-input and multiple-output (MIMO) indicator, and a spatial stream indicating field, wherein the indicators and the field are intended for said data block. The MIMO indicator indicates whether the data block is for single user MIMO (SU-MIMO) or multi-user MIMO (MU-MIMO). The spatial stream indicating field includes information on the number of said spatial streams.
(FR)
L'invention porte sur un procédé permettant à un émetteur de transmettre une trame de données dans un système de réseau local (LAN) sans fil. Le procédé consiste à : générer un bloc de données comprenant une ou plusieurs unités de données, dont chacune doit être transmise à un ou plusieurs récepteurs par un ou plusieurs flux spatiaux ; transmettre des premières informations de commande audit ou auxdits récepteurs ; transmettre des secondes informations de commande à chaque récepteur, les secondes informations de commande comprenant un champ de codage de correction d'erreurs sans voie de retour (FEC) servant à indiquer la technique de codage appliquée aux unités de données et un champ de technique de modulation et de codage (MCS) servant à indiquer la MCS appliquée aux unités de données ; et transmettre le bloc de données audit ou auxdits récepteurs. Les premières informations de commande comprennent un indicateur de longueur, un indicateur d'entrées multiples et sorties multiples (MIMO), et un champ d'indication de flux spatial, les indicateurs et le champ étant destinés audit bloc de données. L'indicateur MIMO indique si le bloc de données est destiné à une technique MIMO mono-utilisateur (SU-MIMO) ou à une technique MIMO multi-utilisateurs (MU-MIMO). Le champ d'indication de flux spatial comprend des informations sur le nombre desdits flux spatiaux.
(KO)
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.
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