BEAM TRACKING METHOD, RRU, BBU AND BASE STATION

摘要

The embodiments of the present invention provide a beam tracking method, a remote radio unit (RRU), a baseband processing unit (BBU) and a base station. The method comprises: an RRU scanning beams from different azimuths, each beam bearing characteristic information concerning user equipment, the characteristic information comprising azimuth angle information; the RRU performing, according to the characteristic information, angular spectrum estimation of each beam, to determine angular spectrum information and energy information concerning each beam; and the RRU sending the angular spectrum information and the energy information concerning each beam to a BBU, so that the BBU determines, according to the angular spectrum information and the energy information concerning each beam, a beam weight used by the RRU in beam forming when sending data to the user equipment. The RRU uses angular spectrum estimation to acquire angular information and energy information concerning a beam, and sends this information to the BBU, so that the BBU determines, according to the angular spectrum information, the beam weight used by the RRU in beam forming when sending data to the user equipment, thereby realizing the real-time tracking of the user beam.