Abstract: The present invention relates to a method for transmitting a Physical Uplink Shared Channel (PUSCH), performed by a user equipment (UE) in an unlicensed band, the method comprising: receiving downlink control information (DCI) including information on a listen before talk (LBT) type and information on a PUSCH start position from a base station; and transmitting the PUSCH on the basis of the information on the LBT type and the information on the PUSCH start position, wherein the LBT type is one of LBT type 1, LBT type 2, and LBT type 3, a random backoff-based LBT is performed in the LBT type 1, an LBT without a random backoff is performed in the LBT type 2, and an uplink is transmitted without LBT in LBT type 3.

Abstract: The present invention relates to a wireless communication system, and specifically to a method and a device therefor, the method comprising: a step for receiving group common DCI on a first cell, wherein the group common DCI includes availability information about one or more RB sets configured for the first cell; a step for, on the basis of all of the RB set(s) being indicated as unavailable, performing first PDCCH monitoring, but skipping channel measurement on the RB set(s) during a certain duration; and a step for, on the basis of at least one of the RB set(s) being indicated as available, performing second PDCCH monitoring and the channel measurement on the at least one available RB set.

Abstract: A method for transmitting a random access channel (RACH) by a terminal in a wireless communication system is provided. The method comprises: receiving a synchronization signal block (SSB) from a base station; receiving a downlink signal from the base station; and when the reception of the downlink signal is finished, transmitting the RACH to the base station, wherein the SSB is periodically transmitted in every Nth fixed frame period (FFP), N is an integer equal to or greater than 1, and the starting time point for transmission of the SSB corresponds to a first time resource included in the every Nth FFP.

Abstract: Provided are a method of performing a channel access procedure by an apparatus in an unlicensed band, and an apparatus using same method. The apparatus determines a contention window size (CWS) and performs a channel access procedure with respect to a first channel on the basis of the determined contention window size. The contention window size may be adjusted on the basis of feedback information relating to a second channel. When a transmission history of the second channel, which is to be reflected in determining the contention window size, does not exist, the contention window size may be determined to be a minimum CWS value in a specific channel access priority class.

Abstract: Disclosed is a method for a terminal to transmit a physical uplink control channel (PUCCH) in a wireless communication system. In particular, the method comprises the steps of: receiving information related to a PUCCH resource set of the PUCCH; determining, on the basis of the information, a PUCCH resource for transmitting the PUCCH by using frequency hopping; and transmitting the PUCCH by means of the PUCCH resource, wherein the PUCCH resource includes a first physical resource block (PRB) in a first hop and a second PRB in a second hop, and a first hopping distance, based on the information indicating the first PUCCH resource set, between the first PRB and the second PRB is equal to a second hopping distance, based on the information indicating a second PUCCH resource set, between the first PRB and the second PRB.

Abstract: The present disclosure discloses a method by a terminal transmits an uplink (UL) signal in a wireless communication system. In particular, the method comprises: determining an energy detection (ED) threshold value on the basis of maximum effective isotropic radiated power (EIRP) from among at least one of pieces of first EIRP for at least one first UL signal; acquiring channel occupancy on the basis of the ED threshold value; and, within the channel occupancy, (i) transmitting the at least one first UL signal on the basis of each of at least one of pieces of first EIRP for each of the at least one first UL signal, and (ii) transmitting a second UL signal on the basis of second EIRP, wherein the second EIRP is less than or equal to the maximum EIRP.

Abstract: Provided is a user equipment that: receives resource allocation; determines N transmission occasions on the basis of the resource allocation, where N is an integer greater than 1; determines a redundancy version (RV) value for each of the N transmission occasions on the basis of an RV sequence of length M; and transmits uplink in at least one transmission occasion from among the N transmission occasions on the basis of the RV value for the at least one transmission occasion. An RV value for an n-th transmission occasion from among the N transmission occasions is n mod M=K-th RV value, from among values in the RV sequence, where n=1, . . . , N.

Abstract: The present invention relates to a wireless communication system, and specifically to a method and a device therefor, the method comprising: a step for receiving group common DCI including slot format information and channel occupancy duration information; a step for determining slot formats for one or more slots on the basis of the slot format information and the channel occupancy duration information; and a step for performing communication on the basis of the determined slot formats for the one or more slots.

Abstract: A method by which a terminal transmits uplink control information (UCI) in an unlicensed band and a device using the method are provided. The method generates data and first UCI including information necessary to decode the data, and transmits, to a base station, the data and the first UCI through a physical uplink shared channel (PUSCH) in an unlicensed band, wherein the first UCI further includes information necessary to decode the second UCI when second UCI is transmitted to the base station together with the data and the first UCI through the PUSCH.

Abstract: Proposed is a method for receiving a downlink signal by a terminal in a wireless communication system. The method comprises: receiving a synchronization signal block (SSB) from an initiating device; and receiving a downlink signal from the initiating device, wherein the SSB is periodically transmitted in every Nth fixed frame period, the N is an integer equal to or greater than 1, and transmission of the SSB is started at the first time resource included in the every Nth fixed frame period.

Abstract: According to an embodiment of the present disclosure, a user equipment (UE) may receive downlink control information (DCI) in a first fixed frame period (FFP) for frame based equipment (FBE) from a base station (BS), and perform a channel access procedure for a scheduled uplink (UL) transmission based on the DCI. In a first state in which it is indicated that the scheduled UL transmission is related to channel occupancy initiated by the BS, and the UE should perform channel sensing for the scheduled UL transmission, the UE may perform the channel access procedure for the scheduled UL transmission based on whether a resource for the scheduled UL transmission allocated by the DCI is confined within the first FFP in which the DCI is received.

Abstract: According to an embodiment of the present disclosure, a user equipment (UE) may obtain fixed frame period (FFP)-related information, and perform clear channel assessment (CCA) for at least one FFP starting with a UE-initiated channel occupancy time (COT) for transmission of an uplink signal. The FFP-related information may include information about an FFP starting offset and information about an FFP duration or period, and the UE may identify a starting time of the FFP, based on the FFP starting offset having an orthogonal frequency division multiplexing (OFDM) symbol-level granularity.

Abstract: The present disclosure discloses a method of a user equipment (UE) in a wireless communication system. Especially, the method comprising: receiving system information; performing a channel access procedure (CAP) based on one of a first channel access mode and a second channel access mode different from the first channel access mode; and transmitting an uplink signal based on a result of the CAP, and wherein, based on the system information including information related to a channel access mode, the CAP is performed based on one of the first channel access mode and the second channel access mode based on the information, and wherein, based on the system information not including the information related to the channel access mode, the CAP is performed based on the first channel access mode.

Abstract: The present disclosure relates to a wireless communication system. Specifically, the present disclosure relates to a method and an apparatus therefor, the method comprising the steps of: transmitting an RA preamble on one RO among a plurality of ROs, wherein a resource to which the RA preamble is transmitted includes the following elements, (a) a sub-interval index within a 10 ms interval, (b) a slot index within a sub-interval, (c) a symbol index within a slot, and (d) a frequency resource index; and after transmitting the RA preamble, monitoring DCI having an RA-identifier within a time window, the RA-identifier being masked in a CRC in the DCI, and receiving an RA response corresponding to the DCI, wherein one of (a) to (d) is included in a payload in the DCI, and the rest of (a) to (d) is included in the RA-identifier.

Abstract: The present disclosure relates to a method and a device therefor, the method comprising the steps of: obtaining, on the basis of not receiving information on a channel occupancy duration from a base station, channel state information based on a plurality of CSI-reference signals (CSI-RSs) which are all overlapped with, on a time domain, at least one from among a physical downlink shared channel (PDSCH) and an aperiodic CSI-RS; and transmitting the channel state information to the base station, wherein durations corresponding to the PDSCH and the aperiodic CSI-RS are consecutive time durations on the time domain.

Abstract: According to an embodiment of the present disclosure, a user equipment (UE) may perform a channel access procedure for a scheduled uplink (UL) transmission on a shared spectrum based on a random access response. When it is indicated that the scheduled UL transmission is associated with channel occupancy initiated by a base station (BS) and the UE needs to perform channel sensing for the scheduled UL transmission, the UE may perform the channel access procedure for the scheduled UL transmission, based on whether reception of the random access response and the scheduled UL transmission are confined within a same period among periods configured in the shared spectrum.

Abstract: Disclosed is a method of transmitting a physical uplink control channel (PUCCH) by a user equipment (UE) in a wireless communication system. The method includes receiving information related to an index of a PUCCH resource set for the PUCCH and to the number of resource blocks (RBs) for the PUCCH, and transmitting the PUCCH through a PUCCH resource based on a first RB offset. A second RB offset of the PUCCH resource set is obtained based on the index, and the first RB offset is obtained by multiplying the number of RBs by the second RB offset.

Abstract: A method by which a terminal transmits data in an unlicensed band, and an apparatus using the method are provided. The method comprises: transmitting data to a base station through a physical uplink shared channel (PUSCH) in the unlicensed band; and receiving, from the base station, acknowledgement/negative acknowledgement (ACK/NACK) information about the data in the unlicensed band, wherein the terminal receives, from the base station, timeline information notifying of a time relationship between the PUSCH transmission time point and the ACK/NACK information reception time point.

Abstract: The present disclosure discloses a method of a user equipment (UE) in a wireless communication system. Especially, the method comprising: receiving system information; performing a channel access procedure (CAP) based on one of a first channel access mode and a second channel access mode different from the first channel access mode; and transmitting an uplink signal based on a result of the CAP, and wherein, based on the system information including information related to a channel access mode, the CAP is performed based on one of the first channel access mode and the second channel access mode based on the information, and wherein, based on the system information not including the information related to the channel access mode, the CAP is performed based on the first channel access mode.

Abstract: Disclosed is a method for transmitting a signal by an apparatus in a wireless communication system. In particular, the method may be characterized by: performing a first listen before talk (LBT) for the entire second bandwidth including a plurality of first bandwidths; on the basis of the first LBT having succeeded, transmitting the signal via the second bandwidth; on the basis of the first LBT having failed, performing a second LBT for at least one first bandwidth that is some of the plurality of first bandwidths; and on the basis of the second LBT having succeeded, transmitting the signal via the at least one first bandwidth.