A method in at least one radio network node (1003, 1004) for handling carrier selection, the method comprising: measuring at least one of interference or load levels on at least two uplink carriers, based on an identification of a receiver type used for measuring, wherein said measuring is performed in at least one sector of each of the uplink carriers, the method further comprising the steps of: calculating an offset based on said measured interference or load levels on the at least two uplink carriers, said calculated offset reflecting difference of the interference or load levels between said at least two uplink carriers; and signalling said calculated offset and the identification of the receiver type to a communication device, thereby causing said communication device to base its carrier selection for random access at least on said measured interference or load levels on said at least two uplink carriers and on the identification of the receiver type, wherein, if the receiver used in the step of measuring the interference or load levels on the at least two uplink carriers comprises interference suppressing, IS, capabilities, the step of measuring comprises compensating for such interference suppression, wherein, if the receiver used in the step of measuring the interference or load levels on the at least two uplink carriers comprises interference cancellation, IC, capabilities, the step of measuring comprises compensating for such interference cancellation, and wherein said step of compensating comprises compensating said measured interference or load levels on said at least two uplink carriers or said calculated offset. measuring at least one of interference or load levels on at least two uplink carriers, based on an identification of a receiver type used for measuring, wherein said measuring is performed in at least one sector of each of the uplink carriers, the method further comprising the steps of: calculating an offset based on said measured interference or load levels on the at least two uplink carriers, said calculated offset reflecting difference of the interference or load levels between said at least two uplink carriers; and signalling said calculated offset and the identification of the receiver type to a communication device, thereby causing said communication device to base its carrier selection for random access at least on said measured interference or load levels on said at least two uplink carriers and on the identification of the receiver type, calculating an offset based on said measured interference or load levels on the at least two uplink carriers, said calculated offset reflecting difference of the interference or load levels between said at least two uplink carriers; and signalling said calculated offset and the identification of the receiver type to a communication device, thereby causing said communication device to base its carrier selection for random access at least on said measured interference or load levels on said at least two uplink carriers and on the identification of the receiver type, wherein, if the receiver used in the step of measuring the interference or load levels on the at least two uplink carriers comprises interference suppressing, IS, capabilities, the step of measuring comprises compensating for such interference suppression, wherein, if the receiver used in the step of measuring the interference or load levels on the at least two uplink carriers comprises interference cancellation, IC, capabilities, the step of measuring comprises compensating for such interference cancellation, and wherein said step of compensating comprises compensating said measured interference or load levels on said at least two uplink carriers or said calculated offset.