Optionally, in another embodiment, the processor 45 may be further configured to perform mutual authentication with the communications device using the low frequency channel, or the transmitter 43 sends high-frequency frequency information to the communications device using the low frequency channel.
Optionally, in another embodiment, the transmitter 43 is further configured to send a scanning start time to the communications device using the low frequency channel, or the receiver 44 receives a scanning start time sent by the communications device. The processor 45 starts, at the scanning start time, to perform high frequency beam alignment of a high frequency antenna with the communications device according to the scanning range of the high frequency beam.
It should be understood that in this embodiment of the present disclosure, the low frequency channel may further be a wired channel such as an optical network. This is not limited in the present disclosure.
Description is provided only using antenna beam alignment between a base station and a mobile terminal as an example in the embodiments of the present disclosure. The present disclosure may be also applied to beam alignment between a base station and a base station antenna, or may be applied to beam alignment between a mobile terminal and a mobile terminal antenna.