Nokia Solutions and Networks Oy

Nokia Technologies Oy

Alcatel Lucent

Paolo Baracca

Sami-Jukka Hakola

Mikko Aleksi Uusitalo

Juha Pekka Karjalainen

Thorsten Wild

Samantha Caporal Del Barrio

Karthik Upadhya

Martti Johannes Moisio

Volker Braun

Federico Boccardi

David Lopez-Perez

Dani Johannes Korpi

Lorenzo Galati Giordano

Hardy Halbauer

Silvio Mandelli

Andreas Weber

Giovanni Geraci

Adrian Garcia Rodriguez

Frank Schaich

Cornelis Hoek

Tero Johannes Ihalainen

Danish Aziz

Ali Karimidehkordi

Saeed Reza Khosravirad

Jafar Mohammadi

Leonardo Chiarello

Andrea Bedin

Mahmoud Ramezani-Mayiami

Jakob R Hoydis

David Lopez-perez

André Fonseca Dos Santos

A solution for radio jamming detection is disclosed. The solution comprises determining M subcarriers in a time-frequency resource grid to be blanked and outputting the M subcarriers in the time-frequency resource grid to be blanked by performing at least one of the following operations: first determination of a number M of subcarriers in a time-frequency resource grid to be blanked based on probability of detecting a jammer attack or on channel quality of subcarriers in the time-frequency resource grid, second determination of which M subcarriers in the time-frequency resource grid are blanked taking into account the channel quality of subcarriers in the time-frequency resource grid.

Method and apparatus for radio jamming detection

According to an aspect, there is provided an apparatus for performing the following. The apparatus obtains predicted Doppler spectrum information for a propagation channel between a first terminal device and one of an access node or a second terminal device calculated using a radio-aware digital twin. The predicted Doppler spectrum information includes information on one or more Doppler frequencies of a predicted Doppler spectrum resulting from reflections from one or more terminal devices capable of movement under control of the digital twin. The apparatus causes performing of measurements of one or more reference signals by a device associated with the propagation channel to a form a channel estimate. The apparatus calculates a measured Doppler spectrum based on the channel estimate and filters out the one or more Doppler frequencies from it. The apparatus adjusts a beam refinement interval of the device based on the filtered measured Doppler spectrum.

Doppler-based beam training interval adaptation

A spreading sequence is determined (S) based on a candidate of a control channel of a control resource set, the candidate comprising a sequence of control information. The sequence of control information and the determined spreading sequence are multiplied (S), thereby obtaining a spread series of control information.

Single carrier control channel

A modulation and coding scheme for a transmission to an apparatus may be selected by at least sampling a posteriori probability distribution that has been calculated using a first probability distribution and a second probability distribution. The first probability distribution is calculated using at least a newest first feedback and a plurality of older first feedbacks, a first feedback indicating channel quality. The second probability distribution is calculated using at least a newest second feedback and a plurality of older second feedbacks, a second feedback indicating a success or failure of an earlier transmission transmitted from the apparatus.

Selecting modulation and coding scheme

This document discloses a solution for performing anti-jamming procedures. According to an aspect, a method for a terminal device comprises: receiving a first reference signal allocation from an access node, wherein the first reference signal is unique to the terminal device in a cell managed by the access node; receiving a second reference signal allocation from the access node, wherein the second reference signal is shared with at least one other terminal device in the cell; causing transmission of payload data together with the first reference signal according to a regular transmission pattern; and breaking the regular transmission pattern by transmitting dummy data together with the second reference signal in a time-frequency resource shared with the at least one other terminal device.

Protecting transmissions against jamming

There is provided a method for a first network element of a wireless communication network, the method comprising: obtaining blanked subcarrier index data indicating one or more blanked subcarriers in a time-frequency resource grid; initiating reception of a transmission from a second network element of the wireless communication network on said time-frequency resource grid; causing performing an interference measurement on said one or more blanked subcarriers to obtain interference measurement data on said one or more blanked subcarriers; and outputting the interference measurement data for detecting a presence of radio jamming.

Radio jamming detection

A method for modifying an electromagnetic field distribution of a node in a telecommunication network, comprising determining the presence of an entity within a region of interest, and regulating transmission power to the region of interest from the node by varying a spatio-temporal transmission profile of the node in response to determining the presence of the entity in the region for a period of time longer than a predetermined threshold value, wherein modifying the electromagnetic field distribution of the node comprises modifying an average electromagnetic field distribution of said node.

Regulating transmission powers from nodes

Embodiments provide beamforming apparatuses, methods and a computer programs for a base station transceiver and a mobile transceiver. An apparatus () operable in a base station transceiver () of a mobile communication system comprises a transceiver module () comprising interfaces to a plurality () of antennas. The transceiver module () is operable to subdivide the plurality () of antennas in a plurality of subgroups using the interfaces, and to form a first beam pattern () using one or more antennas of a subgroup. The apparatus () further comprises a control module (), which is operable to transmit a synchronization signal using the transceiver module () and the first beam pattern (). The control module () is further operable to receive a response signal after transmission of the synchronization signal from a mobile transceiver () using the transceiver module (), to determine a second beam pattern () based on the response signal from the mobile transceiver (). The second beam pattern () has a higher antenna gain than the first beam pattern (), and to transmit a signal to the mobile transceiver () using the second beam pattern () and the transceiver module (). An apparatus () operable in a mobile transceiver () of a mobile communication system comprises a transceiver module () comprising interfaces to a plurality of antennas (), and a control module () operable to determine a first set of beam patterns () based on the plurality of antennas (), to receive a signal from a base station transceiver () using a first beam pattern from the first set of beam patterns () using the transceiver module (). The control module () is further operable to determine a second set of beam patterns () based on the plurality of antennas (), the second set of beam patterns () comprising more beam patterns than the first set of beam patterns (), and to transmit a signal to the base station transceiver () using a second beam pattern from the set of second beam patterns () and using the transceiver module ().

Beamforming apparatuses, methods and computer programs for a base station transceiver and a mobile transceiver

The invention relates to a method (MET-T) for transmitting channel feedback information in a wireless communication system. The method (MET-T) contains the steps of determining (M) a first reception quality value (CQI) for a first radio channel from a first transmission point () of the radio communication system to an apparatus (), determining (M) based on the first reception quality value (CQI) a preferred use of the first radio channel (), and transmitting (M) towards the first transmission point () the first reception quality value (CQI) and the first reception quality value (CQI) simultaneously indicates the preferred use. The invention further relates to an apparatus for transmitting channel feedback information in the wireless communication system and to a method (MET-R) and apparatus () for receiving the channel feedback information in the wireless communication system.

Method and apparatus for transmitting channel feedback information in a wireless communication system and method and apparatus for receiving channel feedback information in a wireless communication system

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Stuttgart, Germany

Paolo Baracca