Patent ID: 7630347

Claim:
An interface unit comprising: a first component for establishing a connection to a radio network controller of a radio network sub-system by means of a first communication protocol; a second component for establishing a connection to a plurality of access points of a wireless local area network by means of a second communication protocol, wherein each of the plurality of access points covers a respective physical cell, and a plurality of physical cells including the respective physical cell constitutes a logical cell; a third component for converting the second communication protocol to the first communication protocol and for converting the first communication protocol to the second communication protocol; and a fourth component for providing data indicative of a load situation of the logical cell to the radio network controller, wherein the load situation indicates a total load of the plurality of access points within the logical cell as a fraction of an integrated capacity of the plurality of physical cells within the logical cell, wherein the radio network controller is configured to control a handover between logical cells based on said data indicative of the load situation of the logical cell.