Wireless communication system and routing method for packet switching service, femto AP using the routing method

A routing method for a packet switched service, suitable for a wireless communication system including a mobile core network, a broadband IP network, a Femto AP (FAP) and a user equipment (UE), wherein the broadband IP network is connected to the mobile core network and a packet switched service supply end, and the UE is connected to the mobile core network through the FAP and the broadband IP network, the routing method for the packet switched service comprising:

• sending an activate packet data protocol (PDP) context request message to the FAP by the UE when the UE performs a packet switched service request;
• evaluating the PDP context request message and determining whether the packet switched service accessed by the UE can be transmitted without routing through the mobile core network by the FAP, and if yes, generating and directly replying an activate PDP context accept message to the UE by the FAP, wherein the activate PDP context accept message comprises a setting address provided by the FAP;
• sending a packet switching data to the FAP by the UE according to the setting address in order to obtain the packet switched service;
• and
• conducting the packet switched service with the packet switched service supply end by the FAP through the broadband IP network.

A Femto AP (FAP), suitable for a wireless communication system including a mobile core network, a broadband IP network, and a user equipment (UE), wherein the broadband IP network is connected to the mobile core network and a packet switched service supply end, and the UE is connected to the mobile core network through the FAP and the broadband IP network, the FAP comprises a storage medium storing a session management application software module, wherein the session management t application software module is used for executing a routing method for a packet switched service, which comprising:

• receiving an activate packet data protocol (PDP) context request message from the UE when the UE performs a packet switched service request;
• evaluating the PDP context request message and determining whether the packet switched service accessed by the UE can be transmitted without routing through the mobile core network by the FAP, and if yes, generating and directly replying an activate PDP context accept message to the UE, wherein the activate PDP context accept message comprises a setting address;
• and
• conducting the packet switched service with the packet switched service supply end through the broadband IP network when a packet switching data that is sent by the UE according to the setting address in order to obtain the packet switched service is received.

A non-transitory storage medium, for storing a session management application software module, and applied in a Femto AP for executing a routing method for a packet switched service, the Femto AP being suitable for a wireless communication system including a mobile core network, a broadband IP network, and a user equipment (UE), wherein the broadband IP network is connected to the mobile core network and a packet switched service supply end, and the UE is connected to the mobile core network through the FAP and the broadband IP network, the routing method for the packet switched service that is executed by the session management application software module comprising:

• receiving an activate packet data protocol (PDP) context request message from the UE when the UE performs a packet switched service request;
• evaluating the PDP context request message and determining whether the packet switched service accessed by the UE can be transmitted without routing through the mobile core network by the FAP, and if yes, generating and directly replying an activate PDP context accept message to the UE, wherein the activate PDP context accept message comprises a setting address;
• and
• conducting the packet switched service with the packet switched service supply end through the broadband IP network when a packet switching data that is sent by the UE according to the setting address in order to obtain the packet switched service is received.