Patent ID: 8229347

Claim:
A base transceiver station for use in a wireless telecommunications system, the base transceiver station comprising: one or more radio transceivers of a first type connected to one or more antennas of a first type configured to provide wireless access for remote subscriber units; a radio transceiver of a second type connected to an antenna of a second type; and a cable connecting the one or more radio transceivers of the first type to the transceiver of the second type in an intermediate frequency domain; and a carrier combiner unit configured to: combine frequency carriers used by the one or more radio transceivers of the first type into one transport channel used by the transceiver of the second type; and shift a frequency of the carriers used by the one or more radio transceivers of the first type with a different shift for each carrier, wherein the frequency shift for an i-th carrier is (i−1)·df, wherein i=1. . . n, and n is the number of carriers to be combined, and wherein df is a basic frequency shift that is at least a width of the carrier frequency used by the one or more radio transceivers of the first type.