Method and apparatus for transmitting scheduling request in wireless communication system

A user equipment for transmitting a scheduling request in a wireless communication system,

• a radio frequency (RF) unit transmitting and receiving radio signals;
• and
• a processor being operatively connected to the RF unit,
• wherein the processor:
• receives, from a base station, allocation information of a scheduling request (SR) resource and allocation information of a semi-persistent scheduling (SPS) resource,
• receives, from the base station, a cyclic shift index, and
• transmits, to the base station, the scheduling request through the scheduling request resource or the semi-persistent scheduling resource,
• wherein the scheduling request resource is a resource for transmitting the scheduling request allocated in a control channel,
• wherein the semi-persistent scheduling resource is a resource for transmitting uplink data, a part of the semi-persistent scheduling resource being allocated for the scheduling request,
• wherein the scheduling request resource is cyclically shifted and allocated to the UE based on the cyclic shift index, and
• wherein the cyclic shift index is determined based on a position of the scheduling request resource through which the scheduling request is transmitted for a first time after the semi-persistent scheduling resource through which the scheduling request is transmitted.