Patent ID: 9066256
Filing Date: 2015-06-23
Classification: G06F,H04L,H04W

Abstract:
1. A method for offloading network traffic applied in mobile communication, the method comprising: receiving, by an offloading device located before a serving general packet radio service support node (SGSN) in an uplink direction of a user, a data stream of the user sent by a base station, obtaining an offloading policy of the user from the offloading device or obtaining the offloading policy of the user from a policy server, and forwarding the data stream according to the offloading policy; wherein obtaining the offloading policy of the user from the offloading device comprises parsing a data packet in the data stream, obtaining an uplink GPRS Tunneling Protocol for the user plane (GTP-U) tunnel destination address of the data packet, and determining the offloading policy of the user according to the obtained uplink GTP-U tunnel destination address and a stored offloading table; wherein forwarding the data stream according to the offloading policy comprises: determining whether to forward the data stream to the SGSN or to forward the data stream to internet or other specific network according to the offloading policy; further comprising configuring the offloading policy comprising: setting the same access point name (APN), by the SGSN, for all users requiring offloading; allocating one or multiple uplink GTP-U tunnel destination addresses to the APN on the SGSN, and generating the offloading table according to a mapping relation between the APN and the uplink GTP-U tunnel destination address; and configuring, on the offloading device, an offloading table having the same content as that of the offloading table on the SGSN as the offloading policy.