Embodiments of this application provide a control method and apparatus. The method includes: determining, by a baseband unit BBU when the BBU determines that network quality of a first cell of multiple cells within coverage of the BBU decreases, load information of the first cell; when load of the first cell is less than or equal to a first load threshold, determining, according to signal strength of all remote radio units RRUs, a second cell, having the strongest signal interference to the first cell, of neighboring cells of the first cell; and combining an RRU of the first cell with an RRU of the second cell to obtain a combined cell. The embodiments of this application improve network quality and improve user network experience.