A converged network device: receives a handover requirement from a first access device in a first network, where the handover requirement carries an identifier of a second access device in a second network or an identity of a tracking area served by the second access device; determines, based on the identifier of the second access device or the identity of the tracking area served by the second access device, that the second access device is managed by the converged network device; sends a handover request to the second access device, where the handover request is used to request the second access device to prepare a related resource for the terminal; sends a handover command to the first access device, where the handover command is used to instruct to hand over the terminal to the second access device; and receives a handover notification from the second access device.