Nokia Technologies Oy

Nokia Corporation

Other

Nokia Solutions and Networks Oy

Nokia Mobile Phones Limited

Nokia Networks Oy

Intellectual Ventures I LLC

Provenance Asset Group LLC

III Holdings 1, LLC

Mika Kasslin

Amitav Mukherjee

Janne Marin

Olli Alanen

Jarkko Kneckt

Sami Virtanen

Mikko Tirronen

Enrico Henrik Rantala

Kari Leppanen

Markku Tapio Turunen

Juha Johannes Salokannel

Jari Henrik Junell

Niko Kiukkonen

David Lopez-Perez

Enrico Rantala

Janne Petteri Tervonen

Päivi Ruuska

Lorenzo Galati Giordano

Veli-Matti Kolmonen

Arto Tapio Palin

Claudio Rosa

Mauri Honkanen

Kari Juhani Leppänen

Gabor Bajko

Jukka Pekka Reunamäki

Lauri Laitinen

Mika P Rinne

Nuno Manuel Kiilerich Pratas

Sayantan Choudhury

Philip Ginzboorg

Carl Simon Wijting

Antti Lappeteläinen

Jarkko Lauri Sakari Kneckt

Prabodh Varshney

Harald Kaaja

Mikko Aleksi Uusitalo

Pekka T Soininen

Jia Liu

Esa Mikael Malkamäki

Klaus Franz Doppler

Aarno Tapio Pärssinen

Antti Piipponen

Antti Sorri

Cinzia Sartori

Dani Johannes Korpi

Padam Lal Kafle

Hasse Sinivaara

Jari Pekka Mustajarvi

Canfeng Chen

Hannu Ensio Laine

Klaus Doppler

Adrian Garcia Rodriguez

Jari Pekka Mustajärvi

Esa Juhani Tuomaala

Eng Hwee Ong

Visa Tapio Smolander

Jari Jokela

Enrico-Henrik Rantala

Thomas Höhne

Istvan Beszteri

Hans Thomas Höhne

Pasi Katajainen

Miika Laaksonen

Oleg Chistyakov

Nuno Pratas

Ilari Teikari

Ari Alastalo

Fred Simon

Fuad Mousse Abinader, Jr

Tuomas Laine

David A Beyer

Roberto Maldonado

Erika Portela Lopes De Almeida

Andre Mendes Cavalcante

Fabiano De Sousa Chaves

Muninder Veldandi

Jouni Olavi Kossi

Lars Rene Eggert

Yongguang Guo

Jukka Reunamäki

Wessam Afifi Ahmed

Morten Toft

Jori Arrakoski

Jakub Majkowski

Martti E Virtanen

Timo Nihtila

Päivi M Ruuska

Mark Wagner

Antti Lappetel&auml;inen

Vincent Poulbere

Mark T Turunen

Kari Leppänen

A node configured to support a method of communicating between two nodes in the unlicensed spectrum is disclosed where a channel can be simultaneously used for downlink and uplink communication. The method performed at a node involves assessing at that node, for example, a UE, that there is a transmission to be made to a further node, for example a gNB. The first node receives an indication that communication with the further node is supported on a channel within an unlicensed spectrum using flexible frequency division duplex (FDD) techniques. The first node determines whether transmission by the further node is being made within a first portion of the channel within the unlicensed spectrum; and if so, transmits to the further node within a second portion of the channel which does not overlap with the first.

Communication in the unlicensed spectrum

An apparatus comprising: at least one processor; and at least one memory including computer program code; the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to perform: receiving control information including a slot format indicator configured to indicate scheduled channel usage for time units, wherein the slot format indicator includes at least one indicator configured to indicate that simultaneous uplink and downlink communications are scheduled to occur on a shared channel in at least one of the time units; and determining a type of channel sensing to use prior to initiating an uplink transmission on at least a portion of the shared channel based, at least in part, on the control information, wherein determining a type of channel sensing to use comprises analysing the scheduled channel usage for, at least, the time unit in which the uplink transmission is scheduled to be initiated and the time unit before the time unit in which the uplink transmission is scheduled to be initiated.

Channel sensing

This document discloses a solution for performing inter-network beamforming cooperation. According to an aspect, a method comprises: establishing, by a first access node of a first wireless network, inter-network beamforming with a second access node of a second wireless network and acquiring, during the establishment, information indicating that at least one station of the second wireless network has added an identifier of the first access node to a beamforming address set; transmitting, by the first access node, an announcement frame indicating the at least one station of the second wireless network; transmitting, by the first access node, a channel sounding signal; receiving, by the first access node, a beamforming report comprising channel state information from the at least one station of the second wireless network; and performing, by the first access node, null steering beamforming transmission in the first wireless network on the basis of the received channel state information.

Cooperative beamforming in wireless network

Disclosed is a method comprising measuring a first power value in a first channel before transmitting a first signal in a second channel A first transmit power value is then determined for transmitting the first signal in the second channel. In addition, a second power value in the first channel is estimated, while transmitting the first signal in the second channel, wherein the second power value is estimated based on at least the measured first power value and the first transmit power value. Further, a third power value is measured in the first channel, while transmitting the first signal in the second channel.

Estimating signal leakage for multi-channel operation

This document discloses a solution for decoding frames received via multiple links. According to an aspect, a method for an apparatus of a wireless network includes: decoding at least a first part of a first frame received on a first channel; detecting, during said decoding the first part of the first frame, transmission of a second frame on a second channel; in response to said detecting, buffering at least a first part of the second frame, the first part of the second frame including duration information; after said decoding the first part of the first frame, decoding at least the first part of the second frame; updating, on the basis of the duration information, channel occupation information of the second channel; starting, based at least partly on the channel occupation information of the second channel indicating that the second channel not occupied, contention for channel access on the second channel.

Channel sensing in multi-link capable wireless device

According to an example aspect of the present invention, there is provided a method, comprising: transmitting an association request from a wireless device to a first access node of a wireless network for associating the wireless device to the wireless network, wherein the wireless network comprises a centralized unit and a plurality of access nodes, including the first access node, receiving an association response from the first access node for associating the wireless device to the wireless network, performing carrier sensing on a plurality of channels; selecting a second access node among the plurality of access nodes in response to obtaining a transmission opportunity for a channel of the plurality of channels, wherein the selecting is based at least partly on a record of ongoing transmission opportunities, and transmitting data from the wireless device to the second access node during the transmission opportunity.

Wireless access establishment

According to an example aspect of the present invention, there is provided a method, comprising: receiving from a first wireless device a first transmission comprising information on beamforming and/or null steering for a second transmission from the first wireless device, and controlling a third transmission from a second wireless device to a third wireless device during the second transmission on the basis of the information on beamforming and/or null steering.

Spatial reuse for wireless network

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.

Spatial reuse for hidden node scenario

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 () simultaneously on both the first channel and the second channel and transmitting () 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 () simultaneously on both the first channel and the second channel and transmitting () 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.

Coexistence of devices in wireless network

A transmitter is configured to set a counter to a starting value, sense whether a channel is busy or idle and to update the counter value during sensing. When there is data to be transmitted, the transmitter is configured to determine, based on at least the counter value at a transmit opportunity and a duration the channel has been sensed idle before the transmit opportunity, whether to transmit the data or to continue the sensing the channel to a next transmit opportunity without resetting the counter value to the starting value.

Channel access procedure

This document discloses a solution for detecting a transmission opportunity. According to an aspect, a method comprises as performed by an apparatus of a first wireless network: detecting a first transmission from a first apparatus of a second wireless network different from the first wireless network; transmitting, to a second apparatus of the first wireless network, a transmission mode request, wherein the transmission mode request indicates a request to transmit from the apparatus to the second apparatus at least during an interframe space of a transmission opportunity between the first apparatus and another apparatus of the second wireless network, receiving a transmission mode response from the second apparatus, wherein the transmission mode response indicates acceptance of the request; in response to detecting a second transmission from the first apparatus, transmitting a data frame during an interframe space following the second transmission.

Detecting new transmission opportunities

This document discloses a solution for performing internetwork beamforming cooperation. According to an aspect, a method comprises: establishing, by a first access node () of a first wireless network, internetwork beamforming with a second access node () of a second wireless network, wherein the establishment indicates at least one station () of the second wireless network; in response to said establishing, transmitting by the first access node () a channel sounding signal; receiving, by the first access node () from the at least one station () of the second wireless network, a beamforming report comprising channel state information measured from the channel sounding signal; and performing, by the first access node (), null steering beamforming transmission in the first wireless network on the basis of the received channel state information.

There is provided a method in an access point, the method comprising: grouping a plurality of terminal devices that are within certain radio distance from each other into same group; selecting a single terminal device of the group to reply to a transmission request message on behalf of the group; transmitting the transmission request message, wherein the transmission request message indicates the single selected terminal device of the group that should reply to the transmission request message on behalf of the group; and in response to the transmitting the transmission request message, initiating receiving a transmission response message from the single selected terminal device on behalf of the group.

Selecting transmission response message transmitter

This document discloses a solution for addressing network slices in a radio interface between a station and an access node. According to an aspect, the station is granted access to a network slice and, when transmitting a data frame of the network slice, the network slice is identified in the data frame by a medium access control address of the data frame.

Network slicing in radio interface

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Espoo, Finland

Mika Kasslin