Patent ID: 8660076

Claim:
A method of transmitting a scheduling request (SR) to request uplink resources in a wireless communication system, the method performed by a user equipment and comprising: receiving an SR configuration from a first serving cell, the SR configuration including a resource index and an SR index indicating a periodicity for SR transmission; receiving a transmission indicator which enables simultaneous transmission of the SR and a physical uplink shared channel (PUSCH); transmitting the SR to the first serving cell on a physical uplink control channel (PUCCH) in a subframe by using a resource indicated by the resource index; and transmitting uplink data to a second serving cell on the PUSCH in the subframe, wherein transmitting the SR on the PUCCH and transmitting the uplink data on the PUSCH are simultaneously performed in the subframe when the transmission indicator is included in the received SR configuration, wherein a specific PUCCH format is used to transmit the SR, and wherein the specific PUCCH format is different from a PUCCH format used to transmit at least channel quality information (CQI) or an acknowledgement/non-acknowledgment (ACK/NACK) signal for hybrid automatic repeat request (HARQ).