Method of operating terminal in wireless communication system and the terminal

A terminal configured to operate in a wireless communication system, the terminal comprising:

• a plurality of antennas;
• and
• a baseband processor configured to:
• control the plurality of antennas such that a reception beam of the terminal has a pattern;
• control a beam sweep operation using the reception beam of the pattern;
• search for a plurality of cells in the wireless communication system using the pattern the reception beam as a first pattern for a first beam sweep operation;
• determine a first candidate group comprising at least one candidate that is selectable for the transmission and reception beam pattern pair with the first pattern of the reception beam from transmission beam patterns of the plurality of cells based on a result of the searching;
• determine whether to decode a physical broadcast channel (a PBCH) received from a first candidate of the first candidate group;
• decode the PBCH based on the determining;
• and
• select one of the transmission beam patterns for the transmission and reception beam pattern pair with the first pattern of the reception beam from the first candidate group.

A non-transitory computer-readable storage medium storing computer readable instructions, the computer readable instructions, when executed by a processor in a terminal that determines a transmission and reception beam pattern pair, cause the terminal to:

• select a first pattern as a pattern of a reception beam;
• search for a plurality of cells using the reception beam of the first pattern;
• determine a first candidate group comprising a candidate for the transmission and reception beam pattern pair with the first pattern of the reception beam, from among transmission beam patterns of the plurality of cells;
• determining whether to decode a physical broadcast channel (a PBCH) received from a first candidate of the first candidate group;
• decode the PBCH based on the determining;
• and
• select one of the transmission beam patterns for the transmission and reception beam pattern pair with the first pattern of the reception beam based on the decoding.