Abstract: An interference avoidance method, apparatus and a system are provided. A parameter related to a beam coverage direction is dynamically transferred, based on an interference detection result, between a baseband unit and a radio frequency unit to avoid interference in a space domain dimension. The radio frequency unit is supported to automatically adjust the beam coverage direction.

Abstract: This application discloses a data transmission method and a communication apparatus, to reduce a bandwidth requirement for data transmission through a fronthaul interface. A wireless device controller (or a wireless device) can separately encapsulate, into at least two packets, data carried by a plurality of types of physical channels in one time-domain unit, where data carried by at least one type of physical channel is encapsulated in each packet. Alternatively, the wireless device can encapsulate data corresponding to a plurality of physical antennas into at least two packets, where data corresponding to at least one physical antenna is encapsulated in each packet. Because a size of a packet transmitted between the wireless device controller and the wireless device is reduced, the bandwidth requirement for packet transmission through the fronthaul interface is reduced.

Abstract: A subframe configuration switching method and apparatus are provided to reduce an impact of subframe configuration switching on a service of a terminal. In the method, a base station determines that a subframe configuration of a cell needs to be changed from a first configuration to a second configuration, and notifies a terminal in the cell of the change in the subframe configuration of the cell. The base station sends the second configuration to the terminal when first duration that is after the notification expires. The base station makes the second configuration effective when second duration that is after the base station sends the second configuration expires. The base station does not perform initial transmission scheduling on the terminal in the cell within the first duration, and the base station does not schedule the terminal in the cell within the second duration.