Processing

Please wait...

Settings

Settings

Goto Application

1. WO2020225474 - SHARING TRANSMISSION OPPORTUNITY WITH BEAMFORMING

Publication Number WO/2020/225474
Publication Date 12.11.2020
International Application No. PCT/FI2019/050359
International Filing Date 09.05.2019
IPC
H04B 7/024 2017.01
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
022Site diversity; Macro-diversity
024Co-operative use of antennas at several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output systems
H04B 7/0452 2017.01
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
0413MIMO systems
0452Multi-user MIMO systems
H04B 7/06 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
06at the transmitting station
H04L 25/02 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
25Baseband systems
02Details
CPC
H04B 7/024
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
022Site diversity; Macro-diversity
024Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [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
H04L 25/0224
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
25Baseband systems
02Details
0202Channel estimation
0224using sounding signals
Applicants
  • NOKIA TECHNOLOGIES OY [FI]/[FI]
Inventors
  • GARCIA RODRIGUEZ, Adrian
  • LOPEZ-PEREZ, David
  • GALATI GIORDANO, Lorenzo
  • ALANEN, Olli
  • KASSLIN, Mika
Agents
  • NOKIA TECHNOLOGIES OY
  • UUSITALO, Arttu
Priority Data
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SHARING TRANSMISSION OPPORTUNITY WITH BEAMFORMING
(FR) PARTAGE D'OPPORTUNITÉ DE TRANSMISSION AVEC FORMATION DE FAISCEAU
Abstract
(EN)
This document discloses a solution for sharing a transmission opportunity in a wireless network. According to an aspect, a method for an apparatus of a first wireless network comprises: determining a plurality of devices of a second wireless network for null steering; transmitting a trigger frame, the trigger frame indicating a transmission period for data frame transfer between the apparatus and another apparatus of the first wireless network, a spatial reuse opportunity for the second wireless network during the transmission period, and an additional period preceding the transmission period; receiving, from at least one device of the second wireless network during the additional period, a channel state frame; and performing, based on the channel state frame, null steering towards the at least one device during the transmission period.
(FR)
L'invention concerne une solution pour partager une opportunité de transmission dans un réseau sans fil. Selon un aspect, un procédé pour un appareil d'un premier réseau sans fil consiste à : déterminer une pluralité de dispositifs d'un second réseau sans fil pour une orientation de faisceaux avec formation de zéros ; transmettre une trame de déclenchement, la trame de déclenchement indiquant une période de transmission pour un transfert de trame de données entre l'appareil et un autre appareil du premier réseau sans fil, une opportunité de réutilisation spatiale pour le second réseau sans fil pendant la période de transmission, et une période supplémentaire précédant la période de transmission ; recevoir, d'au moins un dispositif du second réseau sans fil pendant la période supplémentaire, une trame d'état de canal ; et effectuer, sur la base de la trame d'état de canal, une orientation de faisceaux avec formation de zéros vers le ou les dispositifs pendant la période de transmission.
Latest bibliographic data on file with the International Bureau