Abstract: A method for transmitting a measurement report by a wireless node in a wireless communication system is disclosed. The method comprises measuring a channel for obtaining channel congestion information; and transmitting the measurement report including the channel congestion information to the network, wherein the channel congestion information is determined based on a number of times a busy period appears and a number of busy samples, within a reporting interval.

Abstract: The present disclosure relates to a method for transmitting signals by a user equipment (UE) in a wireless communication system. In particular, the method includes configuring multiple logical channel groups; receiving an uplink grant with information about at least one of the multiple logical channel groups; and performing a buffer status report (BSR) triggering procedure for the at least one of the multiple logical channel groups based on the uplink grant.

Abstract: The present disclosure relates to a method for transmitting signals by a transmission end in a wireless communication system. In particular, the method includes configuring first and second type logical channel groups; receiving a first uplink grant; and transmitting buffer size information based on the uplink grant, wherein, when the first uplink grant is allowed to be used for transmission of buffer size information of the second logical channel group, the buffer size information includes the buffer size information of the first and second logical channel groups, and wherein, when the first uplink grant is not allowed to be used for transmission of buffer size information of the second logical channel group, the buffer size information includes the buffer size information of the first logical channel group.

Abstract: A method for performing a random access (RA) procedure by a user equipment (UE) in a wireless communication system is provided. The method comprises: selecting a uplink carrier for the RA procedure between a first uplink carrier for a serving cell and a second uplink carrier for the serving cell; and performing a first random access preamble (RAP) transmission for the RA procedure through the selected uplink carrier. Selecting the uplink carrier comprises: selecting the first uplink carrier when a downlink signal quality of the serving cell is less than a first threshold, and selecting one of the first and second uplink carriers randomly when the downlink signal quality of the serving cell is equal to or above the first threshold.

Abstract: A method for calculating a channel busy level (CBL) by a user equipment in a wireless communication system is disclosed. The method comprises monitoring a plurality of synchronization signal/physical broadcast channel (SS/PBCH) blocks within a predetermined window; calculating the CBL by counting dropped SS/PBCH blocks among the plurality of SSBs; configuring parameters for a specific procedure based on the calculated CBL; and performing the specific procedure by using the configured parameters.

Abstract: The present invention relates to a method for performing a random access procedure by a user equipment in a wireless communication system. In particular, the method includes transmitting a first number of random access preambles; detecting a second number of random access responses corresponding to the first number of random access preambles; and transmitting an payload using one uplink grant for which a listen before talk (LBT) procedure is firstly successful among a second number of uplink grants included in the second number of random access responses.

Abstract: A method for allocating resources by a transmission end in a wireless communication system is disclosed.

Abstract: A method for transmitting signals by a user equipment (UE) in a wireless communication system is disclosed. The method comprises skipping buffer status report (BSR) triggering procedure when a logical channel belongs to a specific logical channel group; receiving an uplink grant allowed to be used for transmission of buffer size information of the specific logical channel group; and transmitting buffer size information of the specific logical channel group based on the uplink grant.

Abstract: A method and apparatus for confirmation of multiple configured grants for sidelink in a wireless communication system is provided. A wireless device receives activation command or deactivation command on Physical Downlink Control Channel (PDCCH) for at least one of the multiple configured grants. A wireless device receives transmits, to the network, a confirmation Media Access Control (MAC) Control Element (CE). The confirmation MAC CE includes one or more fields in a bit group of which size is equal to number of the multiple configured grants. Each field in the bit group is set to (i) zero to indicate deactivation for each of the multiple configured grants or (ii) 1 to indicate activation for each of the multiple configured grants. Each field in the confirmation MAC CE except the bit group is ignored.

Abstract: A method for transmitting a medium access control (MAC) protocol data unit (PDU) by a user equipment (UE) in a wireless communication system is disclosed. The method comprises steps of receiving information about a first grant and a second grant; generating the MAC PDU for the first grant; storing the MAC PDU in a first Hybrid automatic repeat request (HARQ) buffer associated with the first grant and a second HARQ buffer associated with the second grant; performing listen before talk (LBT) procedure for the first grant and the second grant; and transmitting the MAC PDU on a grant for which the LBT succeeds firstly among the first grant and the second grant.

Abstract: A method for performing a Scell Beam Failure Recovery (BFR) procedure by a user equipment (UE) in a wireless communication system is disclosed. The method comprises transmitting a message indicating that the Scell BFR procedure is triggered via a cell; incrementing a counter by 1 if the UE does not receive a response to the message; and deactivating the Scell if the counter reaches a maximum value.

Abstract: A method for performing a Scell Beam Failure Recovery (BFR) procedure by a user equipment (UE) in a wireless communication system is disclosed. The method comprises transmitting a message indicating that the Scell BFR procedure is triggered via a cell; incrementing a counter by 1 if the UE does not receive a response to the message; and deactivating the Scell if the counter reaches a maximum value.

Abstract: A method for transmitting data through a logical channel by a user equipment (UE) in a wireless communication system is disclosed. The method comprises determining whether data for the logical channel exists or not; increasing a token value based on a prioritized Bit Rate (PBR) and a time elapsed since the data becomes available for the logical channel, when the data for the logical channel exists; and transmitting the data or a part of the data through the logical channel, when the token value is greater than 0, wherein when there is no data for the logical channel, the token value is not increased.

Abstract: A method for transmitting a measurement report by a wireless node in a wireless communication system is disclosed. The method comprises measuring a channel for obtaining channel congestion information; and transmitting the measurement report including the channel congestion information to the network, wherein the channel congestion information is determined based on a number of times a busy period appears and a number of busy samples, within a reporting interval.

Abstract: A method for transmitting signals by a user equipment (UE) in a wireless communication system is disclosed. The method comprises skipping buffer status report (BSR) triggering procedure when a logical channel belongs to a specific logical channel group; receiving an uplink grant allowed to be used for transmission of buffer size information of the specific logical channel group; and transmitting buffer size information of the specific logical channel group based on the uplink grant.

Abstract: A method for calculating a channel busy level (CBL) by a user equipment in a wireless communication system is disclosed. The method comprises monitoring a plurality of synchronization signal/physical broadcast channel (SS/PBCH) blocks within a predetermined window; calculating the CBL by counting dropped SS/PBCH blocks among the plurality of SSBs; configuring parameters for a specific procedure based on the calculated CBL; and performing the specific procedure by using the configured parameters.

Abstract: Provided is a method for selectively performing an uplink scheduling request (SR) by a terminal on the basis of an adaptive uplink channel state threshold value, and an apparatus supporting the same. The terminal may calculate an uplink channel state threshold value on the basis of a variation of a short-term average uplink channel state and a long-term average uplink channel state, determine an uplink channel state predictive value on the basis of a downlink channel state, and determine whether to perform an uplink scheduling request on the basis of the uplink channel state predictive value and the uplink channel state threshold value.

Abstract: A method for performing a random access (RA) procedure by a user equipment (UE) in a wireless communication system is provided. The method comprises: selecting a uplink carrier for the RA procedure between a first uplink carrier for a serving cell and a second uplink carrier for the serving cell; and performing a first random access preamble (RAP) transmission for the RA procedure through the selected uplink carrier. Selecting the uplink carrier comprises: selecting the first uplink carrier when a downlink signal quality of the serving cell is less than a first threshold, and selecting one of the first and second uplink carriers randomly when the downlink signal quality of the serving cell is equal to or above the first threshold.

Abstract: A method for transmitting data through a logical channel by a user equipment (UE) in a wireless communication system is disclosed. The method comprises determining whether data for the logical channel exists or not; increasing a token value based on a prioritized Bit Rate (PBR) and a time elapsed since the data becomes available for the logical channel, when the data for the logical channel exists; and transmitting the data or a part of the data through the logical channel, when the token value is greater than 0, wherein when there is no data for the logical channel, the token value is not increased.

Abstract: Provided are a method by which a terminal selectively performs an operation on the basis of a terminal operation mode in a wireless communication system, and a device for supporting the method. The terminal determines a terminal group to which the terminal belongs, on the basis of a battery residual quantity and a battery residual quantity threshold value, calculates channel quality on the basis of a downlink reference signal, determines a terminal operation mode on the basis of the determined terminal group, the calculated channel quality, and the channel quality threshold value, and performs an operation on the basis of the determined terminal operation mode, wherein the terminal group can be any one of an energy insufficient group (EIG) and an energy sufficient group (ESG).