In a possible implementation, the processing unit is specifically configured to: reduce a data transmit power, and increase an RS transmit power, to boost the second RS transmit power corresponding to each of the n RRUs to the corresponding first RS transmit power; or concentrate a total RS transmit power on a service bandwidth of a logical cell to which the RRU belongs, to a bandwidth in a middle of the service bandwidth, to boost the second RS transmit power corresponding to each of the n RRUs to the corresponding first RS transmit power.

In a possible implementation, the processing unit is further configured to: determine second downlink RSRPs, of the plurality of terminals, corresponding to each of the m RRUs, where a second downlink RSRP, of one terminal, corresponding to one RRU is a received power that is measured by the terminal and that is of an RS sent by the RRU at a corresponding second RS transmit power; determine a boosted RS transmit power of each of the m RRUs; and determine first downlink RSRPs, of the plurality of terminals, corresponding to each of the m RRUs, based on the second downlink RSRPs, of the plurality of terminals, corresponding to each of the m RRUs and the boosted RS transmit power of each RRU.

In a possible implementation, the processing unit is further configured to determine, based on a boosted RS transmit power of each of the n RRUs, the bandwidth in the middle corresponding to the n RRUs.