| 摘要 |
In at least one embodiment taught herein, the point in a packet transmission sequence space at which hyper frame numbers are incremented is changed at least temporarily as part of handover processing, where a mobile station (12) is handed over from a source cell to a target cell. More particularly, in at least one embodiment, changing the triggering point, e.g., changing the transmission sequence number at which HFNs are incremented, is done in a manner that delays a next incrementing of the HFN for a radio bearer that was handed over, therefore giving additional time for the mobile station (12) and the handover target base station (16) to ensure synchronization in the face of possible packet losses in the source and/or target cells arising during the handover event. |
