Determination of candidate set of beams for beam tracking
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. In some embodiments, determining the candidate set of beams comprises letting a first candidate set of beams associated with a first reliability of the prediction include more available beams not covering the predicted future trajectory than does a second candidate set of beams associated with a second reliability of the prediction when the first reliability is lower than the second reliability. Corresponding apparatus, network node and computer program product are also disclosed.
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