Base station and method for controlling same in wireless communication system

A method for controlling by a base station, the method comprising:

• performing channel sensing to use an unlicensed band;
• generating each of a plurality of packets to be transmitted in each of different time intervals;
• and
• determining a packet among the plurality of packets to be transmitted in a time interval after generation of the plurality of packets, based on whether channel sensing is completed.

A method for controlling by a base station, the method comprising:

• generating, before an expiration of a first period in which the base station occupies an unlicensed band, a random backoff counter (N) corresponding to a second period;
• identifying a number of symbols based on the random backoff counter;
• determining a transmission length for a reserved signal (RS) to be transmitted in the determined number of symbols, based on the random backoff counter and the identified number of symbols;
• and
• transmitting, through the identified number of symbols before the expiration of the first period, the RS of the determined transmission length, and performing channel sensing to occupy the second period.

A base station, comprising:

• a transceiver configured to transmit and receive signals;
• and
• a controller configured to:
• generate a first packet including data to be transmitted to a terminal on an unlicensed band;
• determine, after generation of the first packet, whether channel sensing for using the unlicensed band is completed;
• and
• control the transceiver to skip a transmission of the first packet, in case that the channel sensing for using the unlicensed band is not completed.

A base station, comprising:

• a transceiver configured to transmit and receive signals;
• and
• a controller configured to:
• perform channel sensing to use an unlicensed band;
• generate each of a plurality of packets to be transmitted in each of different time intervals;
• and
• determine a packet among the plurality of packets to be transmitted in a time interval after generation of the plurality of packets, based on whether channel sensing is completed.

A base station comprising:

• a transceiver configured to transmit and receive signals;
• and
• a controller configured to:
• generate, before an expiration of a first period in which the base station occupies an unlicensed band, a random backoff counter (N) corresponding to a second period;
• identify a number of symbols based on the random backoff counter;
• determine a transmission length for a reserved signal (RS) to be transmitted in the determined number of symbols, based on the random backoff counter and the identified number of symbols;
• and
• control the transceiver to transmit, through the identified number of symbols before the expiration of the first period, the RS of the determined transmission length, and perform channel sensing to occupy the second period.