METHOD AND APPARATUS OF PROCESSING A DATA PACKET IN MOBILE COMMUNACATION SYSTEM

摘要

PURPOSE: Data packet processing method and device thereof of a mobile communication system are provided to prevent packet loss according to network reactivation. CONSTITUTION: A gateway GPRS support node (GGSN) (500) includes a tunnel forming unit (510), a packet confirmation unit (520), a transmission unit (530) and a reception unit (540). The tunnel forming unit forms a direct tunnel of a data region with a radio network controller (RNC) (506) by signaling through serving GPRS support node (SGSN) (550) and GPRS tunneling protocol (GTP)-C protocol. The reception unit receives a downlink data packet with respect to a sleep mode terminal transmitted to the SGSN in a state in which a data session with respect to the terminal from the SGSN. The packet confirmation unit confirms indicator and data size recorded in a header of the data packet received by the reception unit. The transmission unit transmits the downlink data packet to the RNC using the direct tunnel formed by the tunnel forming unit when the packet confirmation unit decides to transmit the downlink data packet. [Reference numerals] (500) Package exchange support node; (510) Tunnel forming unit; (520) Packet confirmation unit; (530) Transmission unit; (540) Reception unit