The present disclosure relates to an electronic device, a communication method and a storage medium in a wireless communication system. There is provided an electronic device on side of a base station, comprising a processing circuitry configured to: determine a first beam for a first transport channel between the base station and an UE; send, to the UE, a dynamic signaling including beam indication information on the first beam, such that a beam for the first transport channel is updated to the first beam; and in a case where the updating of the beam for the first transport channel is successful, update a beam for a second transport channel and/or a reference signal between the base station and the UE to the first beam.