An apparatus includes at least one processor and at least one memory including a computer program code, the at least one memory and the computer program code configured, with the at least one processor, to cause the apparatus at least to: reserve at least an equal number of modulation symbols for uplink control information symbols in each physical uplink shared channel transport block; create at least one layer-specific replica of the uplink control information symbols to be placed in some of reserved resources of the physical uplink shared channel transport blocks; and scramble uplink control information symbols including the symbols of the at least one layer-specific replica in a layer-specific manner for multiplexing the uplink control information with physical uplink shared channel data.