A method by a user equipment (UE) is described. The method includes instructing a physical layer of the UE to signal a scheduling request (SR) on a Physical Uplink Control Channel (PUCCH) based on whether scheduling request counter is less than the maximum number of scheduling request transmission, and transmitting, to an evolved Node B (eNB), the SR on either of the PUCCH on a primary cell and the PUCCH on a PUCCH secondary cell. The scheduling request counter is incremented in a case that the scheduling request counter is less than the maximum number of scheduling request transmission.