Patent ID: 9066281
Filing Date: 2015-06-23
Classification: H04W

Abstract:
1. A method for transmitting packet switched (PS) services, comprising: receiving, by an access network, an Activate Packet Data Protocol (PDP) Context Request message of a PS service sent from a User Equipment (UE), wherein the Activate PDP Context Request message carries an Access Point Name (APN) for identifying one of the group consisting of a core network and an external network; establishing, by the access network, a corresponding transmission channel according to the APN, wherein if the APN identifies the external network, a transmission channel directly connected to the external network is established via a gateway General Packet Radio Service (GPRS) support node (GGSN)-like function which is configured in the access network; and transmitting, by the access network, the PS service through the established transmission channel; wherein the GGSN-like function routes user data and allocates Internet Protocol (IP) addresses to the UE, and allows direct connection to the external network via a Gi interface, wherein a logical interface which is configured in the access network connects the GGSN-like function to the external network.