Abstract: There is provided an apparatus comprising: at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus at least to perform: receiving, from a network node, a request for training data for data augmentation algorithm; transmitting, to the network node, a first part of a plurality of parts of the training data, wherein properties of data in the first part of the training data reflect distribution of the training data.

Abstract: Apparatuses and methods in a communication system are disclosed. A channel predictor is determined to be used in a connection between a base station and a terminal device. The predictor is trained using channel state information of the connection and a predictor function determined to be used both in the base station and terminal device. The base station calculates a predicted state of the channel utilising the predictor function and transmits payload data to the terminal device. The base station receives update information to the predicted state of the channel from the terminal device, where the update information is the variation between the channel predicted at the terminal device and the measured channel.

Abstract: Apparatuses and methods in a communication system are disclosed. Reference data is transmitted to terminal device. Information describing state of the channel between the apparatus and the terminal device is received, for a given time period, from the terminal device. A predicted state of the channel is calculated utilising a given channel predictor function known by the terminal device. Update information to the predicted state of the channel is received from the terminal device.

Abstract: Apparatuses and methods in a communication system are disclosed. Reference data is transmitted to terminal device. Information describing state of the channel between the apparatus and the terminal device is received, for a given time period, from the terminal device. A predicted state of the channel is calculated utilising a given channel predictor function known by the terminal device. Update information to the predicted state of the channel is received from the terminal device.