Processing

Please wait...

Settings

Settings

Goto Application

1. WO2011005004 - METHOD AND APPARATUS FOR INDICATING DESTINATION STATIONS IN WLAN SYSTEM SUPPORTING MULTI-USER MULTIPLE INPUT MULTIPLE OUTPUT

Publication Number WO/2011/005004
Publication Date 13.01.2011
International Application No. PCT/KR2010/004384
International Filing Date 06.07.2010
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
CPC
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
H04L 25/0204
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
25Baseband systems
02Details
0202Channel estimation
0204of multiple channels
H04L 25/0226
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
25Baseband systems
02Details
0202Channel estimation
0224using sounding signals
0226sounding signals per se
H04L 5/0023
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
0001Arrangements for dividing the transmission path
0014Three-dimensional division
0023Time-frequency-space
H04L 5/0048
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
003Arrangements for allocating sub-channels of the transmission path
0048Allocation of pilot signals, i.e. of signals known to the receiver
H04W 24/00
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
24Supervisory, monitoring or testing arrangements
Applicants
  • LG ELECTRONICS INC. [KR]/[KR] (AllExceptUS)
  • SEOK, Yong Ho [KR]/[KR] (UsOnly)
  • KANG, Byeong Woo [KR]/[KR] (UsOnly)
  • NOH, Yu Jin [KR]/[KR] (UsOnly)
  • LEE, Dae Won [KR]/[KR] (UsOnly)
Inventors
  • SEOK, Yong Ho
  • KANG, Byeong Woo
  • NOH, Yu Jin
  • LEE, Dae Won
Agents
  • 양문옥 YANG, Moon Ock
Priority Data
10-2010-004625518.05.2010KR
61/223,67907.07.2009US
61/307,42723.02.2010US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD AND APPARATUS FOR INDICATING DESTINATION STATIONS IN WLAN SYSTEM SUPPORTING MULTI-USER MULTIPLE INPUT MULTIPLE OUTPUT
(FR) PROCÉDÉ ET APPAREIL POUR INDIQUER LES STATIONS DE DESTINATION DANS UN SYSTÈME WLAN QUI PREND EN CHARGE DES ENTRÉES MULTIPLES ET SORTIES MULTIPLES MULTI-UTILISATEURS
Abstract
(EN)
A method of indicating destination stations, performed by an access point (AP), in a wireless local area network (WLAN) system supporting multi-user multiple input multiple output (MU-MIMO)is provided. The method includes transmitting a sounding request frame to the plurality of destination stations to transmit a sounding frame used for channel estimation between the AP and each destination station, receiving the sounding frame in response to the sounding frame request from each station, and transmitting a first data frame spatially multiplexed with respect to the plurality of destination stations by performing channel estimation on the basis of the sounding frame, wherein the sounding request frame comprises a group identifier (ID) indicating the plurality of destination stations.
(FR)
L'invention concerne un procédé pour indiquer des stations de destination en utilisant un point d'accès (AP), dans un système de réseau local sans fil (WLAN) qui prend en charge des entrées multiples et sorties multiples multi-utilisateurs (MU-MIMO). Le procédé consiste à transmettre une trame de demande de sondage à une pluralité de stations de destination pour transmettre une trame de sondage utilisée pour le canal d'estimation entre le point AP et chaque station de destination, recevoir la trame de sondage en réponse à la demande de trame de sondage depuis chaque station, et transmettre une première trame de données multiplexée spatialement par rapport à la pluralité de stations de destination en effectuant une estimation de canal sur la base de la trame de sondage, la trame de demande de sondage comprenant un identificateur de groupe (ID) indiquant la pluralité de stations de destination.
Also published as
Latest bibliographic data on file with the International Bureau