A communication method, apparatus, and system are provided. The method may be applied to a communication system including a plurality of network nodes. In the method, a first network node may obtain an uplink user plane address of a second network node through a message, where the first network node may be understood as a donor network node; and then send the uplink user plane address of the second network node to a child node of the second network node, that is, a third network node. In this way, the third network node may send uplink user plane data, for example, uplink feedback data, to the second network node based on the uplink user plane address of the second network node, where a receiving status of downlink data may be fed back through the uplink feedback data.