Patent ID: 8422429

Claim:
A base station comprising: a transmit path circuitry configured to: select one of a first uplink control information (UCI) multiplexing method that allows a subscriber station to simultaneously transmit physical uplink shared channel (PUSCH) and physical uplink control channel (PUCCH) and a second UCI multiplexing method that does not allow the subscriber station to simultaneously transmit PUSCH and PUCCH; transmit a higher layer signal indicating the one selected UCI multiplexing method to the subscriber station; and transmit one or more uplink grants to the subscriber station, wherein each of the one or more uplink grants schedules a PUSCH in an uplink component carrier (UL CC) for a subframe n to the subscriber station, and each of the one or more uplink grants carries a channel quality information (CQI) request; and a receive path circuitry configured to receive an aperiodic channel state information (CSI) report transmitted by the subscriber station on the PUSCH in the uplink component carrier i when only one uplink grant of the one or more uplink grants scheduling a PUSCH in an uplink component carrier i carries a CQI request having a value from a set of values, wherein when acknowledgement/negative acknowledgement (ACK/NACK) information is scheduled in the same subframe n and when the one selected UCI multiplexing method is the first UCI multiplexing method, the ACK/NACK information is also transmitted by the subscriber station on the PUSCH transmitted in the uplink component carrier i.