Abstract: A method of data transfer between a radio unit and a mobile wireless device includes obtaining a value for a measure of a location of the mobile wireless device relative to the radio unit. When the measure of the location indicates that the mobile wireless device is nearer to the radio unit than a speed-dependent threshold value, any required beam switch is made to one of a plurality of predefined wide beams for data transfer between the radio unit and the mobile wireless device. When the measure of the location indicates that the mobile wireless device is further from the radio unit than the speed-dependent threshold value, any required beam switch is made to one of a plurality of predefined narrow beams for data transfer between the radio unit and the mobile wireless device.

Abstract: A method for wireless communication is disclosed, wherein an access node is configured to transmit signals using beamforming to a user device, wherein transmitting signals using beamforming comprises transmitting signals using a selected beam of a plurality of available beams, and wherein beam tracking comprises measurements by the user device on a candidate set of beams of the plurality of available beams for beam selection. The method comprises predicting a future trajectory for the user device, and determining the candidate set of beams based on the predicted future trajectory. In some embodiments, determining the candidate set of beams based on the predicted future trajectory comprises giving preference to available beams covering the predicted future trajectory.

Abstract: A method for wireless communication is disclosed, wherein an access node is configured to transmit signals using beamforming to a user device, wherein transmitting signals using beamforming comprises transmitting signals using a selected beam of a plurality of available beams, and wherein beam tracking comprises measurements by the user device on a candidate set of beams of the plurality of available beams for beam selection. The method comprises estimating at least one of a distance from the access node to the user device and a velocity parameter of the user device, and adjusting one or more of a beam tracking measurement frequency, a beam tracking measurement periodicity, the beam tracking measurement period, and a beam tracking measurement interval based on at least one of the estimated distance from the access node to the user device and the estimated velocity parameter of the user device.