Abstract: Method and device(s) for providing precoder selection policy for a multi-antenna transmitter arranged to transmit data over a communication channel of a wireless communication network. Machine learning in the form of reinforcement learning is applied involving adaptation of an action value function configured to compute an action value based on information indicative of a precoder of the multi-antenna transmitter and of a state relating to at least the communication channel. The adaptation being further based on reward information provided by a reward function, indicative of how successfully data is transmitted over the communication channel, and the precoder selection policy is provided based on the adapted action value function resulting from the reinforcement learning.

Abstract: There is disclosed a method of operating a beam-forming wireless communication system, the system has a plurality of radio nodes, an actor neural network being associated to each radio node, wherein further to each actor neural network, there is associated a critic network. The method includes training each actor neural network, for controlling at least one associated radio node, based on learning feedback provided by its associated critic network, the learning feedback being based on operation information provided be the actor neural network for the critic network. The disclosure also pertains to related devices and methods.

Abstract: The disclosure includes a host operating in a communication system to provide an over-the-top (OTT) service. The host includes processing circuitry configured to initiate transmission of user data to a network node in a cellular network to a user equipment (UE). The network node is configured to receive a CSI report for a downlink channel from a wireless device and transmit the user data from the host to the UE to provide the OTT service based on the CSI report. The CSI report includes a set of reported coefficients; an indication of how the network node is to interpret the set of reported coefficients, wherein the indication of how the network node is to interpret the set of reported coefficients indicates the set of reported coefficients as a subset of a set of candidate reported coefficients; and an indication of a payload size of the set of the reported coefficients.

Abstract: A host configured to operate in a communication system to provide an over-the-top (OTT) service is described. The host initiates transmission of user data to a network node. In order to transmit the user data to a user equipment, the network node receives a channel state information (CSI) report for a downlink channel, the CSI report indicating a plurality of precoder vectors, wherein each of the precoder vectors corresponds to a frequency sub-band of a bandwidth of the downlink channel, each precoder vector being expressed as a linear combination of spatial-domain components and frequency-domain components. The network nodes determines precoding to use for transmitting data to the UE based at least in part on the CSI report. The network nodes transmits the user data from the host to the UE according to the determined precoding to provide the OTT service.

Abstract: A method performed by a wireless device (510, 800, 1200) for reporting channel state information (CSI) for a downlink channel is disclosed. The method comprises transmitting (601, 705) a CSI report for the downlink channel to a network node (560, 1100), the CSI report comprising: a set of reported coefficients; an indication of how the network node is to interpret the set of reported coefficients; and an indication of a payload size of the set of the reported coefficients.

Abstract: A wireless communication device (10; 100) performs wireless transmissions via an antenna array of the wireless communication device (10; 100). The antenna array comprises multiple antenna elements with a first polarization, a second polarization, and a third polarization. For at least some of the wireless transmissions, the wireless communication device (10; 100) performs beamforming processing by, for the first polarization, weighting antenna signals each corresponding to a respective one of the multiple antenna elements by a first beamforming vector, for the second polarization, weighting antenna signals each corresponding to a respective one of the multiple antenna elements by a second beamforming vector, and for the third polarization, weighting antenna signals each corresponding to a respective one of the multiple antenna elements by a third beamforming vector.

Abstract: A technique for performing a beamformed transmission and/or reception in a wireless communication using an antenna array comprising a first sub-array of first antenna elements each having a first polarization (602) and a second sub-array of second antenna elements each having a second polarization (604) that is orthogonal to the first polarization (602) is provided. As to a method aspect of the technique, a method for performing a beamformed transmission comprises or initiates a step of obtaining a first weight vector for the first sub-array and a second weight vector for the second sub-array. The first weight vector and the second weight vector optimize a utility function. The utility function comprises a first term depending on a first function of the first weight vector and on a second function of the second weight vector. The utility function further comprises a second term depending on either one of the first function and the second function.

Abstract: A method of operating a first wireless communication device includes transmitting a first message toward one or more wireless devices including a second wireless device, the first message indicating a need of the first wireless communication device to use shared network resources, receiving an indication from the second wireless device that it has available resources, utilizing the available resources of the second wireless device, transmitting a second message toward the one or more wireless devices, the second message comprising an entry for inclusion in a distributed transaction ledger of utilized resources that is shared among the one or more wireless devices, the entry indicating utilization of the available resources of the second wireless device by the first wireless communication device, and storing the entry in a local copy of the distributed transaction ledger.

Abstract: In certain embodiments, a method performed by a wireless device comprises estimating a channel state of a downlink channel and transmitting a CSI report for the downlink channel based on the channel state. The CSI report indicates a plurality of precoder vectors, each corresponding to a frequency sub-band of the bandwidth of the downlink channel, a precoder vector being expressed as a linear combination of spatial-domain components and frequency-domain component wherein each of the spatial-domain components is associated with a respective set of one or more frequency-domain components.

Abstract: A host configured to operate in a communication system to provide an over-the-top (OTT) service is described. The host initiates transmission of user data to a network node. In order to transmit the user data to a user equipment, the network node receives a channel state information (CSI) report for a downlink channel, the CSI report indicating a plurality of precoder vectors, wherein each of the precoder vectors corresponds to a frequency sub-band of a bandwidth of the downlink channel, each precoder vector being expressed as a linear combination of spatial-domain components and frequency-domain components. The network nodes determines precoding to use for transmitting data to the UE based at least in part on the CSI report. The network nodes transmits the user data from the host to the UE according to the determined precoding to provide the OTT service.

Abstract: Abstract: A method performed by a wireless device (510, 700, 1100) is disclosed. The wireless device obtains (601) a configuration for a sub-band channel quality indicator (CQI) granularity and a sub-band precoding matrix indicator (PMI) granularity for the wireless device. The wireless device determines (602) channel state information (CSI) feedback according to the configured sub-band CQI granularity and the sub-band PMI granularity. The sub-band PMI granularity corresponds to a first sub-band size and the sub-band CQI granularity corresponds to a second sub-band size. The first sub-band size is smaller than the second sub-band size. The wireless device transmits (603), to a network node (560, 1000), the determined CSI feedback.

Abstract: A method performed by a wireless device for transmitting a channel state information (CSI) report for a downlink channel comprises obtaining a first set of candidate frequency-domain components and determining a set of spatial-domain components. The method comprises determining a second set of candidate frequency-domain components as a subset of the first set of candidate frequency-domain components. The method comprises determining, for each spatial-domain component of the set of spatial-domain components, a spatial-domain component-specific set of frequency-domain components as a subset of the second set of candidate frequency-domain components. The method comprises transmitting, to a network node, the CSI report.

Abstract: The present disclosure relates to a method performed by a network apparatus having a directional antenna arrangement in a wireless communication network. The method includes obtaining a scheduling decision for a wireless device served by the wireless communication network based on a traffic status and an energy status of the wireless device. Further, the method includes determining a first beamforming weight vector for information transmission and/or a second beamforming weight vector for energy transfer based on Channel State Information associated with the wireless device. The method further includes applying, to a signal, at least one of the determined first beamforming weight vector in order to transmit an information signal via the directional antenna arrangement to the wireless device and the determined second beamforming weight vector in order to transmit an energy signal via the directional antenna arrangement to the wireless device, based on the obtained scheduling decision.

Abstract: In certain embodiments, a method performed by a wireless device comprises estimating a channel state of a downlink channel and transmitting a CSI report for the downlink channel based on the channel state. The CSI report indicates a plurality of precoder vectors, each corresponding to a frequency sub-band of the bandwidth of the downlink channel, a precoder vector being expressed as a linear combination of spatial-domain components and frequency-domain component wherein each of the spatial-domain components is associated with a respective set of one or more frequency-domain components.

Abstract: The disclosure includes a host operating in a communication system to provide an over-the-top (OTT) service. The host includes processing circuitry configured to initiate transmission of user data to a network node in a cellular network to a user equipment (UE). The network node is configured to receive a CSI report for a downlink channel from a wireless device and transmit the user data from the host to the UE to provide the OTT service based on the CSI report. The CSI report includes a set of reported coefficients; an indication of how the network node is to interpret the set of reported coefficients, wherein the indication of how the network node is to interpret the set of reported coefficients indicates the set of reported coefficients as a subset of a set of candidate reported coefficients; and an indication of a payload size of the set of the reported coefficients.

Abstract: Systems and methods for learning and applying an optimal precoding policy for multi-antenna communications in a Multiple Input Multiple Output (MIMO) system are disclosed.

Abstract: A method performed by a wireless device for transmitting a channel state information (CSI) report for a downlink channel comprises obtaining a first set of candidate frequency-domain components and determining a set of spatial-domain components. The method comprises determining a second set of candidate frequency-domain components as a subset of the first set of candidate frequency-domain components. The method comprises determining, for each spatial-domain component of the set of spatial-domain components, a spatial-domain component-specific set of frequency-domain components as a subset of the second set of candidate frequency-domain components. The method comprises transmitting, to a network node, the CSI report.

Abstract: Disclosed is a method for verifying an electronic vote in a voting system, wherein each voter is associated with a respective token generated by an authentication process in the voting system and wherein each token is configured for identifying the respective voter while maintaining an anonymity of the voter in the voting system.

Abstract: In a first method, a wireless device estimates a delay profile of a channel impulse response, CIR, for a channel between a network node and the wireless device, compresses the delay profile using a compression function, and transmits the compressed delay profile. The compression function includes a first function and a quantizer. The first function is configured to receive input data and reduce a dimension of the input data. In a second method, a network node receives a compressed delay profile of CIR for a channel between a network node and a wireless device, decompresses the compressed delay profile using a decompression function, and estimates a position of the wireless device based on at least the decompressed delay profile. The decompression function includes a first function which is configured to receive input data and provide output data in a higher dimensional space than the input data.

Abstract: A method performed by a wireless device (510, 800, 1200) for reporting channel state information (CSI) for a downlink channel is disclosed. The method comprises transmitting (601, 705) a CSI report for the downlink channel to a network node (560, 1100), the CSI report comprising: a set of reported coefficients; an indication of how the network node is to interpret the set of reported coefficients; and an indication of a payload size of the set of the reported coefficients.