A communication method, comprising: receiving (S901), by a first access network device, uplink user plane data from a user equipment, UE in an inactive state, wherein the UE is moving from a second access network device to the first access network device, wherein the second access network device is an anchor access network device and the first access network device is a serving access network device; and sending (S902), by the first access network device, an uplink control plane information element and the uplink user plane data to the second access network device through different interfaces, wherein the uplink control plane information element comprises a first indication information element, and the first indication information element is used to indicate the second access network device to receive the uplink user plane data sent by the first access network device, wherein the method further comprises: receiving (S9053, S9054), by the first access network device, a downlink control plane information element and downlink user plane data from the second access network device through different interfaces; and sending (S906), by the first access network device, the downlink user plane data to the user equipment, UE, wherein the downlink control plane information element comprises a second indication information element, and the second indication information element is used to indicate the first access network device to receive the downlink user plane data from the second access network device. receiving (S901), by a first access network device, uplink user plane data from a user equipment, UE in an inactive state, wherein the UE is moving from a second access network device to the first access network device, wherein the second access network device is an anchor access network device and the first access network device is a serving access network device; and sending (S902), by the first access network device, an uplink control plane information element and the uplink user plane data to the second access network device through different interfaces, wherein the uplink control plane information element comprises a first indication information element, and the first indication information element is used to indicate the second access network device to receive the uplink user plane data sent by the first access network device, wherein the method further comprises: receiving (S9053, S9054), by the first access network device, a downlink control plane information element and downlink user plane data from the second access network device through different interfaces; and sending (S906), by the first access network device, the downlink user plane data to the user equipment, UE, wherein the downlink control plane information element comprises a second indication information element, and the second indication information element is used to indicate the first access network device to receive the downlink user plane data from the second access network device. receiving (S9053, S9054), by the first access network device, a downlink control plane information element and downlink user plane data from the second access network device through different interfaces; and sending (S906), by the first access network device, the downlink user plane data to the user equipment, UE, wherein the downlink control plane information element comprises a second indication information element, and the second indication information element is used to indicate the first access network device to receive the downlink user plane data from the second access network device. <EOS>