公开(公告)号：US20230345526A1

公开(公告)日：2023-10-26

申请号：US17798995

申请日：2020-12-22

Applicant: Nokia Technologies Oy

Inventor： Olli ALANEN ,  David LOPEZ-PEREZ ,  Mika KASSLIN ,  Adrian GARCIA RODRIGUEZ ,  Lorenzo GALATI GIORDANO

IPC: H04W74/08 ,  H04W72/12

CPC classification number: H04W74/08 ,  H04W72/1215 ,  H04W88/06

Abstract: Method for channel contention and data frame transmission in a wireless network. Said method for an apparatus of a first wireless network comprises: operating the apparatus on at least a first channel and a second channel of the first wireless network; while performing said operating in a first operating mode to transmit a first data frame to a receiver apparatus of the first wireless network, contending (202) simultaneously on both the first channel and the second channel and transmitting (206, 208) the first data frame on the one of the first channel and second channel where said contending is first successful; switching from the first operating mode to a second operating mode; while operating in the second operating mode to transmit a second data frame to the receiver apparatus, contending (212) simultaneously on both the first channel and the second channel and transmitting (216, 218, 220) the second data frame to the receiver apparatus according to the following conditions: in response to successful contention on the first channel before successful contention on the second channel, transmitting the second data frame to the receiver apparatus on the first channel; and in response to successful contention on the second channel before successful contention on the first channel, transmitting the second data frame on the second channel if the contention becomes successful also on the first channel or if the first channel is reserved to an apparatus of a second wireless network different from the first wireless network while the second data frame is transmitted.

公开(公告)号：US20230217492A1

公开(公告)日：2023-07-06

申请号：US17998982

申请日：2021-03-24

Applicant: Nokia Technologies Oy

Inventor： Adrian GARCIA RODRIGUEZ ,  Nuno Manuel KIILERICH PRATAS ,  Olli ALANEN ,  Claudio ROSA ,  Mika KASSLIN ,  Lorenzo GALATI GIORDANO

IPC: H04W74/08

CPC classification number: H04W74/0816

Abstract: According to an example aspect of the present invention, there is provided a method, comprising: occupying a first channel for data transmission between a first multi-link device (MLD) and a second MLD for a first channel occupation period (COP), transmitting a measurement request to a subset of MLDs to perform channel measurements on at least two channels during the first COP, transmitting at least one data message to the second MLD during the first COP, receiving, after transmission of the at least one data message, at least one channel status report comprising channel status information from at least one MLD of the subset of MLDs during the first COP, and selecting a channel, among the at least two channels, for data transmission between the first MLD and an MLD for a second COP, wherein the selection is based at least partly on the channel status report.

公开(公告)号：US20220302963A1

公开(公告)日：2022-09-22

申请号：US17594959

申请日：2019-05-09

Applicant: Nokia Technologies Oy

Inventor： Adrian GARCIA RODRIGUEZ ,  David LOPEZ-PEREZ ,  Lorenzo GALATI GIORDANO ,  Olli ALANEN ,  Mika KASSLIN

IPC: H04B7/024 ,  H04B7/06 ,  H04L25/02

Abstract: 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: includes 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.

公开(公告)号：US20220294493A1

公开(公告)日：2022-09-15

申请号：US17633903

申请日：2019-08-30

Applicant: Nokia Technologies Oy

Inventor： Adrian GARCIA RODRIGUEZ ,  David LOPEZ-PEREZ ,  Lorenzo GALATI GIORDANO ,  Olli ALANEN ,  Mika KASSLIN

IPC: H04B7/024 ,  H04W16/28 ,  H04B7/0426

Abstract: This document discloses a solution for enabling spatial cooperation in a hidden node scenario. According to an aspect, a method comprises: detecting, by a station of a first wireless network managed by a first access node, that a second access node of a second wireless network is hidden to the first access node; in response to the detecting, transmitting by the station a spatial cooperation request message to the second access node; receiving, by the station from the second access node as a response to the spatial cooperation request message, a spatial cooperation response message comprising at least one information element acknowledging spatial cooperation; after receiving the spatial cooperation response message, receiving by the station a frame from the first access node while the second access node is transmitting another frame and while null steering is performed between the apparatus and the second access node.