Stuck again

I'm stuck in programming how transmit a packet which has been pick out by the scheduler. At that moment, the mobile device is already disconected from the base station. What shall I do with the packet which has no destination ( the mobile device is connecting to other base station). According to FMIPv6, the packet would be reroute to new base station. For simplicity, I just drop the packets or placed in a queue until I figure out on how to reroute the packet to the new base station.