A technique to automatically select a bearer from among a plurality of bearers available on a wireless device bases the selection of the bearer on which a data transfer takes place on a cost function that is used both by the server and the wireless device. The mounting assembly includes a mounting surface with a mounting frame, the mounting surface is contiguous with a generally parallel upper and lower surfaces. The U-shaped element has a connection piece on which a coupling element can be arranged. The summing unit sums the measurement result.