HAP HANDOFF METHOD AND SYSTEM

摘要

Disclosed in the present invention are a Host Identity Protocol Access Point (HAP) handoff method and system. The method includes: after the IP address of a Host Identity Protocol (HIP) device changes, the HIP device decides whether to perform a HAP handoff according to obtained HAP information wherein the packet Round Trip Time (RTT) is shorter, or the original HAP of the HIP device decides whether the HIP device should perform the HAP handoff according to obtained HAP information wherein the RTT between the HIP device and the HAP is shorter; when deciding to perform the HAP handoff, the HIP device establishes an association with a new HAP and closes the association with the original HAP; and the original HAP forwards the data sent to the HIP to the new HAP. The present invention solves the problem of long interaction delays between a UE and a HIP device, which are caused by the change from short to long of the RTT between the UE and the HAP after the UE moves.