System and method for contrlling a data traffic in a wireless communication system

The present invention relates to a system and method for controlling the flow of data traffic in a wireless communication system, such the present invention provides an uplink data traffic control method in a wireless communication system, receiving the IP (Internet Protocol) packet from an upper layer When the process of adding a modified packing sub-header (modified PSH) to distinguish between the MAC SDU in the predetermined sub-block units of one or more MAC service data unit (MAC SDU) the generation process and the generated MAC SDU, which in the , a modified MAC header (modified MH) for the at least one tunnel portion to distinguish the process of the modified PSH is grouping added MAC SDU with the same CID MAC SDU with (Connection ID) values ​​of the and, the MAC SDU group When configuring the message and, and grouping the messages configured tunnel, a tunnel for distinguishing the tunnel messages Process by adding a frame header (Tunnel Frame Header) and generating a tunnel frame includes a step of transmitting the generated tunnel frame to a base station. WiBro (Wireless Broadband), RAS (Radio Access Station), (Access Control Router) ACR