Device and a system for IP traffic offloading

摘要

A Mobile Control Entity (125, 225) for a system (100, 200), arranged to communicate with a first Mobile Gateway (110, 210) and a Radio Network Control Entity (130, 230), to receive an instruction from the first Mobile Gateway (110, 210) to arrange a filter for IP traffic from User Equipments (135, 235) in the Radio Network Control Entity (130, 230), to receive data from the first Mobile Gateway (110, 210) regarding the filter, comprising information on which IP traffic from User Equipments to forward to the first or to a second (120, 220) Mobile Gateway respectively, to transmit instructions to a second Mobile Gateway (120, 220) to establish a connection to the Radio Network Control Entity (130, 230) for IP traffic from User Equipments, and to transmit the instructions and the data regarding the IP traffic filter to the Radio Network Control Entity (130, 230).

主权项

1. A method in a wireless access system comprising a Mobile Control Entity, the method comprising:
the Mobile Control Entity communicating with a first Mobile Gateway and a Radio Network Control Entity, the Mobile Control Entity receiving a first instruction from the first Mobile Gateway that a filter for IP traffic from one or more User Equipments in the system should be arranged in the Radio Network Control Entity, the Mobile Control Entity receiving data from the first Mobile Gateway regarding the filter, said data comprising information on which IP traffic from one or more User Equipments that should be forwarded to the first or to a second Mobile Gateway respectively, the Mobile Control Entity transmitting second instructions to a second Mobile Gateway that it should establish a connection to the Radio Network Control Entity for IP traffic from one or more User Equipments in the system, wherein the step of transmitting the second instructions to the second Mobile Gateway comprises the Mobile Control Entity transmitting a packet with a header and a payload, said header comprising a destination address of the intended recipient of the packet, said destination address being an address allocated to the second Mobile Gateway, and the payload comprising data corresponding to at least part of the second instructions, and transmitting the second instructions and the data regarding the IP traffic filter to the Radio Network Control Entity.