Patent ID: 8761107

Claim:
A method for maintaining traffic continuity, the method comprising: receiving, by a Traffic Offload Function (TOF) entity, a downlink packet of offload traffic of a User Equipment (UE) sent by a Packet Data Network (PDN); sending, by the TOF entity, a Core Network (CN) paging message to the UE; receiving, by the TOF entity, a paging response sent by the UE to the CN, wherein the paging response comprises a service request message of the UE, the service request message comprising a Service Type field indicating the paging response; modifying, by the TOF entity, the Service Type field, wherein the modified Service Type field is used to indicate Data; and forwarding, by the TOF entity, the service request message to the CN, the service request message being used by the CN to set up a Radio Access Bearer (RAB) after the forwarded service request message is received.