Electronic device, and wireless communication method of electronic device

An electronic device in a wireless communication system, the electronic device comprising:

• a filter;
• a transmission/reception device configured to transmit and receive data;
• and
• a processor configured to control the transmission/reception device,
• wherein the processor is configured to:
• receive an uplink grant from an evolved Node B (eNB), and
• control the filter, based on the uplink grant.

A method for wireless communication by an electronic device in a wireless communication system, the method comprising:

• transmitting a random-access preamble to an evolved Node B (eNB) in an unlicensed band;
• acquiring Timing Advance (TA) information in response to the random-access preamble;
• and
• transmitting the uplink data by controlling the acquired TA information.