Handover method, system, and device

摘要

Embodiments of the present invention provide a handover method performed by a source access network device, which includes: sending, a handover request or a WLAN offload request to a UE, so that the UE determines information about a target AP according to AP information corresponding to a target RAN and information about a currently accessed AP, and sends a WLAN offload binding request carrying the information about the target AP to a target access network device in the target RAN, so as to complete a RAN handover, where the handover request or the WLAN offload request includes the AP information corresponding to the target RAN, and the AP information corresponding to the target RAN is information about an AP in a WLAN that covers, together with the target RAN, a location of the UE; and receiving a handover response or a WLAN offload response returned by the UE.

主权项

1. A handover method, comprising:
sending, by a source radio access network (RAN) device, a handover request or a wireless local area network (WLAN) offload request to a user equipment (UE), to enable the UE to determine, while the UE performs a RAN handover from a source RAN to a target RAN, information about a target access point (AP) according to AP information corresponding to the target RAN and according to information about a currently accessed AP, and to enable the UE to send a WLAN offload binding request carrying the information about the target AP to a target access network device in the target RAN, wherein the handover request or the WLAN offload request comprises the AP information corresponding to the target RAN, and the AP information corresponding to the target RAN includes information about at least one AP in at least one WLAN that covers, together with the target RAN, a location of the UE, the source RAN is a RAN to which the source RAN device belongs; and receiving, by the source RAN device, a handover response or a WLAN offload response returned by the UE.