IMPROVED LOCAL SWITCHING IN A CELLULAR SYSTEM

摘要

A method (500) for use in a cellular system (200), with a Base Station, RBS (130), which controls traffic to and from user equipments (150, 160), in a cell (140), the system (200) in addition comprising a second node(110), for the control of base stations, and a third node, a third node (120), which switches calls to and from user equipments (150, 160) in a cell (140). A call comprises payload information and control information, and the method comprises the use of a logical node or gateway (210, 410), which checks (515) if a call which is made by a UE within a cell also has a UE within the cell as its destination, in which case the LGW (210, 410) ensures (520) that the payload of the call stays within the cell. According to the method, the LGW (210, 410) of a cell is controlled (525) by the MSC of the cell.