Optionally, for the physical downlink control channel in the at least one subset, the network device further notifies the user equipment of the transmit power configuration information of the physical uplink control channel. For example, the base station 0 notifies the UE of the transmit power configuration information of the physical uplink control channel by using higher layer signaling. Certainly, in a specific embodiment, alternatively, the base station 1 may perform the sending, and the like. This embodiment imposes no limitation on an execution sequence between this step and other steps. For example, the transmit power configuration information of the physical uplink control channel may be sent when the configuration information of the physical uplink control channel is sent, or may be sent before or after the configuration information of the physical uplink control channel is sent.
Optionally, the configuration information of the physical uplink control channel may also be used by the UE to determine a base station to which the acknowledgement information is to be fed back or a base station that receives the resource information, or may be used by the UE to determine a base station responsible for retransmission.
Optionally, for the physical downlink control channel in the at least one subset, the network device notifies the user equipment of one group of common reference signal (CRS for short) rate matching information, and at least one piece of CRS rate matching information in the group of CRS rate matching information includes at least two pieces of CRS pattern information.