Method and apparatus for transmitting and receiving wireless signal in wireless communication system

A user equipment (UE) for monitoring a downlink signal in a wireless communication system, the UE comprising:

• a radio frequency (RF) transceiver;
• and
• a processor connected to the RF transceiver,
• wherein the processor controls the RF transceiver to receive configuration information including a cell discontinuous transmission (DTX) configuration from a cell and transmit an uplink signal to the cell, and determines whether to monitor a downlink signal in response to the uplink signal in an inactive period of cell DTX determined based on the configuration information, and
• whether to monitor the downlink signal is determined based on a type of the uplink signal.

A method of transmitting a downlink signal by a base station (BS) in a wireless communication system, the method comprising:

• transmitting configuration information including a cell discontinuous transmission (DTX) configuration to a user equipment (UE);
• receiving an uplink signal from the UE;
• and
• determining whether to transmit a downlink signal in response to the uplink signal in an inactive period of cell DTX according to the cell DTX configuration based on a type of the uplink signal.