Method and apparatus for performing a selective ip traffic offload procedure

Abstract

Methods and apparatus are described. A mobility management entity (MME) includes an interface and a processor. The interface receive a packet data network (PDN) connectivity request from a wireless transmit/receive unit (WTRU) for use in local Internet protocol access (LIPA)/selected Internet protocol offload (SIPTO), wherein the PDN connectivity request includes an access point name (APN). The processor determines, in response to the received PDN connectivity request, whether LIPA/SIPTO access is permitted. The processor also establishes, in response to the received PDN connectivity request, a PDN connection between the WTRU, local gateway, serving gateway (SGW) and packet data network gateway (PDN GW) so that at least a portion of uplink/downlink data is transferred using LIPA/SIPTO.

What is claimed is: 
     
         1 . A mobility management entity (MME) comprising:
 an interface configured to receive a packet data network (PDN) connectivity request from a wireless transmit/receive unit (WTRU) for use in local Internet protocol access (LIPA)/selected Internet protocol offload (SIPTO), wherein the PDN connectivity request includes an access point name (APN);   a processor configured to determine, in response to the received PDN connectivity request, whether LIPA/SIPTO access is permitted;   the processor is further configured to establish, in response to the received PDN connectivity request, a PDN connection between the WTRU, local gateway, serving gateway (SGW) and packet data network gateway (PDN GW) so that at least a portion of uplink/downlink data is transferred using LIPA/SIPTO.   
     
     
         2 . The MME of  claim 1 , wherein the processor is further configured to send a create session request message to the SGW to establish the PDN connection. 
     
     
         3 . A method, implemented by a mobility management entity (MME), the method comprising:
 receiving, by the MME, a packet data network (PDN) connectivity request from a wireless transmit/receive unit (WTRU) for use in local Internet protocol access (LIPA)/selected Internet protocol offload (SIPTO), wherein the PDN connectivity request includes an access point name (APN);   in response to the received PDN connectivity request, determining, by the MME, whether LIPA/SIPTO access is permitted;   in response to the received PDN connectivity request, establishing, by the MME, a PDN connection between the WTRU, local gateway, serving gateway (SGW) and packet data network gateway (PDN GW) so that at least a portion of uplink/downlink data is transferred using LIPA/SIPTO.   
     
     
         4 . The method of  claim 3 , further comprising sending, by the MME, a create session request message to the SGW to establish the PDN connection.