A mobile terminal configured for simultaneous reporting of channel-state information and hybrid-ARQ ACK/NACK information in uplink subframes, the mobile terminal comprising a receiver circuit, a transmitter circuit, and a processing circuit, wherein the processing circuit is adapted to:
- determine that first channel-state information and first hybrid-ARQ ACK/NACK bits corresponding to a plurality of downlink subframes or a plurality of downlink carriers, or both, are scheduled for transmission in a first uplink subframe;
- determine that the number of the first hybrid-ARQ ACK/NACK bits is less than or equal to a threshold number;
- and
- transmit both the first channel-state information and the first hybrid-ARQ ACK/NACK bits in physical control channel resources of the first uplink subframe, on a single carrier, in response to determining that the number of hybrid-ARQ ACK/NACK bits to be transmitted in the first uplink subframe is less than or equal to the threshold number;
- determine that second channel-state information and second hybrid-ARQ ACK/NACK bits corresponding to a plurality of downlink subframes or a plurality of downlink carriers, or both, are scheduled for transmission in a second uplink subframe;
- determine that the number of the second hybrid-ARQ ACK/NACK bits is not less than or equal to the threshold number;
- bundle the second hybrid-ARQ ACK/NACK bits to produce a number of bundled ACK/NACK bits that is less than or equal to the threshold number, in response to determining that the number of hybrid-ARQ ACK/NACK bits to be transmitted in the second uplink subframe is not less than or equal to the threshold number;
- and
- transmitting both the second channel-state information and the bundled ACK/NACK bits in physical control channel resources of the second uplink subframe, on a single carrier.