Patent ID: 8693337
Filing Date: 2014-04-08
Classification: H04W

Abstract:
1. A reordering method in a communication system in which a base station sends packets to which numbers indicating sequence are attached, to a mobile station, the mobile station rearranges the packets in order of the sequence number, and hard handover is performed, comprising: deciding based on a forwarding policy depending on communication services whether a handover source base station forwards packets which are not sent from the handover source base station to the mobile station, to a handover target base station or not; controlling forwarding of the packets from the handover source base station to the handover target base station at the handover based on the decision, and sending forwarding execution information from the handover source base station to the mobile station to notify whether the forwarding of the packets from the handover source base station to the handover target base station is executed or not; and at the mobile station, receiving the forwarding execution information from the handover source base station, and executing reordering of the packets received from the handover target base station based on the forwarding execution information at the handover.