| 摘要 |
A method and apparatus that enables a mobile device to seamlessly transition between packet-switched wireless networks to while maintaining access to a resource is described. The invention includes a delay measurement component, a buffer management component and a mobile device component. The delay measurement component actively measures downlink packet delays from a packet duplication point to each of the interfaces of the mobile device with a single time reference. A buffer management component compares the measured delays to identify a delay difference and uses the delay difference to manage packet delivery on each network during the transition. A mobile device component includes functionality for assisting in the delay measurement and organizing packets received during transition. As a result of the above mechanisms, delay measurement and buffer management, "slips" and "repeats" due to network transition are minimized, which guarantees an enhanced Quality of Experience (QoE).
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