Abstract: Disclosed in various embodiments are a method for transmitting and receiving signals in a wireless communication system, and an apparatus for supporting same, the method comprising the steps of: receiving, by means of an upper layer signal, information associated with a physical uplink shared channel (PUSCH) starting location, and a plurality of combinations of channel access procedure (CAP) types; receiving DCI comprising one combination from among the plurality of combinations; and transmitting PUSCH on the basis of the one combination, wherein the plurality of combinations is a part of the information associated with the PUSCH starting location and collection of candidate combinations of CAP types.

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: Provided is a user equipment which: receives resource allocation; determines N number of transmission resources on the basis of the resource allocation, wherein N is an integer greater than 1; determines a transport block size (TBS) associated with the N number of transmission resources and a redundancy version (RV) value for each of the N number of transmission resources; and performs uplink transmission in at least one transmission resource among the N number of transmission resources on the basis of the TBS and an RV value for the at least one transmission resource.

Abstract: A method by which a terminal receives data in a wireless communication system and a device using the method are provided. The method is characterized by receiving first data in a unit of transport block, the transport block including at least one code block, transmitting acknowledgement/negative-acknowledgement (ACK/NACK) information for each code block, of which there is at least one, and receiving, in a unit of code block, second data included in a code block, for which NACK has been transmitted, among code blocks, of which there is at least one.

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: The present invention relates to a wireless communication system, specifically, to a method and an apparatus therefor, the method comprising: receiving BWP switching information from a first BWP; switching from the first BWP to a second BWP on the basis of the BWP switching information; switching to a third BWP different from the second BWP on the basis of transmission failure of a first uplink from the second BWP; and transmitting a second uplink from the third BWP, wherein the third BWP is one from among the first BWP, an initially activated BWP used for initial access, and a previously configured BWP.

Abstract: A method by which a terminal transmits an uplink signal in an unlicensed band, and an apparatus using same are provided. The method receives, from a base station, channel occupancy information through a PDCCH and transmits the uplink signal to the base station through a configured grant uplink access (CUL) type physical uplink shared channel (PUSCH) on the basis of the channel occupancy information. The channel occupancy information indicates which sub-band of a CUL band including a plurality of sub-bands enables the terminal to transmit the CUL type PUSCH within a channel occupancy time (COT) acquired by the base station through a channel access procedure.

Abstract: Disclosed are a method for allocating resources for a base station terminal in a wireless communication system, and a communication apparatus utilizing the method. The method determines a specific number of symbols and the allocable maximum bandwidth for the terminal, selects the maximum transmission block size the terminal can transmit or receive on the basis of the determination, and allocates resources on the basis of the selection.

Abstract: Provided are a method for accessing a channel in an unlicensed band and a device using same method. The method is configured such that a wireless device transmits data units, receives feedback information about the data units, and adjusts a contention window size used in a determination of whether there is an access to the channel in the unlicensed band on the basis of the feedback information. The wireless device can adjust the contention window size by using feedback information about, from among the data units, data units which at least partially overlap in reference duration.

Abstract: The present invention provides a method, performed by a user equipment (UE), for performing an action according to the type of listen before talk (LBT) in an unlicensed band, the method comprising the steps of: obtaining, from a base station, information about an LBT type and information about a physical uplink shared channel (PUSCH) starting position through an uplink (UL) grant; performing, on the basis of the obtained LBT type, an action according to the LBT type; and transmitting a PUSCH on the basis of the information about the PUSCH starting position after performing the action according to the LBT type, wherein the information about the PUSCH starting position indicates the position of any one of a plurality of PUSCH starting position candidates.

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 disclosure provides a method, performed by a user equipment (UE), for performing an initial access procedure in an unlicensed band, the method comprising: performing the initial access procedure with a base station; and performing transmission of a physical uplink shared channel (PUSCH) on the basis of the performing of the initial access procedure, wherein the UE obtains, from the base station, information about a listen before talk (LBT) type and information about a PUSCH starting position, and the UE performs the transmission of the PUSCH on the basis of the information about the LBT type and the information about the PUSCH starting position. The information about the PUSCH starting position is information indicating one position among a plurality of PUSCH starting position candidates. The information about the LBT type indicates one of a LBT type 1, a LBT type 2, and a LBT type 3.

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: 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: 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 is a synchronization signal block (SSB) transmission method performed by a communication device in a wireless communication system. The method is characterized in that: a time duration of a fixed frame period (FFP) is set for another communication device; and the SSB is periodically transmitted to the other communication device, wherein the SSB is periodically transmitted on each Nth FFP, said N being an integer greater than or equal to 1, and the transmission start time of the SSB is the first time resource included in each Nth FFP.

Abstract: The present disclosure suggests a method for adjusting the size of a contention window of a base station/terminal. The method comprises transmitting a physical downlink shared channel (PDSCH) to a user equipment (UE) through a frequency bandwidth, receiving an acknowledgement/negative-acknowledgement (ACK/NACK) signal for the PDSCH from the UE, and adjusting the contention window based on the ACK/NACK signal, wherein based on the frequency bandwidth overlapping with a plurality of frequency bands, the BS adjusts the contention window for each of the plurality of frequency bands based on the ACK/NACK signal.

Abstract: Provided are a method for transmitting a physical uplink shared channel (PUSCH) of a terminal in an unlicensed band and a device using the same method. The method comprises: receiving first information indicating a symbol index and second information indicating a length; and transmitting, in at least one slot capable of transmitting the PUSCH, the PUSCH by using a time resource determined on the basis of the first information and the second information.

Abstract: Disclosed are a method for allocating resources for a base station terminal in a wireless communication system, and a communication apparatus utilizing the method. The method determines a specific number of symbols and the allocable maximum bandwidth for the terminal, selects the maximum transmission block size the terminal can transmit or receive on the basis of the determination, and allocates resources on the basis of the selection.

Abstract: A method of transmitting and receiving a signal in a wireless communication system and an apparatus supporting the method are disclosed.