FIELD: electronics.
SUBSTANCE: invention relates to a method for performing a terminal channel access procedure in an unlicensed frequency band. The method comprises the steps of: receiving, from the base station, information regarding the type of procedure for accessing a channel in an unlicensed frequency band; in the case where the type of channel access procedure is a frame-based channel access procedure, receiving, from the base station, a frame-based channel access procedure configuration including a fixed frame period (FFP); determining on the basis of the FFP a start slot or symbol of the FFP and the channel busy time (COT) in said FFP; and in the case where the base station occupies a channel within the COT, transmit an uplink signal to the base station within the COT.
EFFECT: ensuring efficient service delivery in a wireless communication system.
15 cl, 10 dwg, 6 tbl
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