Abstract: A method for sidelink groupcast transmission, performed by a transmitting terminal, may comprise configuring a first feedback resource located at a first time point and a second feedback resource located at a later time point than the first time point; transmitting groupcast control information and groupcast data to a receiving terminal group; receiving first feedback information through the first feedback resource from at least one terminal belonging to a first subgroup of the receiving terminal group; and receiving second feedback information through the second feedback resource from at least one terminal belonging to a second subgroup of the receiving terminal group.

Abstract: An operation method of a relay node may include: receiving, from a first communication node, first data composed of n bits; receiving, from a second communication node, second data composed of m bits; in response to determining that n is greater than m, generating first T-data of m bits excluding (n?m) bits from the n-bits of the first data and first R-data of (n?m) bits; generating third data by performing a network coding operation on the first T-data and the second data; transmitting the third data to the first communication node; and transmitting the third data and the first R-data to the second communication node.

Abstract: An operation method of a terminal in a communication system may include: receiving, from a base station, primary RA configuration information for a primary RA procedure; receiving, from the base station, secondary RA configuration information for a secondary RA procedure; transmitting a primary RA preamble to the base station by using a primary RA resource indicated by the primary RA configuration information; receiving, from the base station, secondary RA indication information in response to the primary RA preamble, the secondary RA indication information indicating to perform the secondary RA procedure instead of the primary RA procedure; and transmitting a secondary RA preamble to the base station by using a secondary RA resource indicated by the secondary RA configuration information.

Abstract: An operation method of an IAB node in a communication system may comprise: measuring a power difference between a first signal received from a first node and a second signal received from a second node; controlling a transmit power of each of the first node and the second node based on the power difference; generating scheduling information for allowing the first node and the second node to simultaneously transmit signals; transmitting the scheduling information to the first node and the second node; and receiving signals that the first node and the second node simultaneously transmit according to the scheduling information by using the transmit power.

Abstract: A method for performing sidelink groupcast transmission by a transmission terminal includes the steps of: classifying reception terminals belonging to a subject group into two or more subgroups; allocating different groupcast feedback schemes to the two or more subgroups; performing groupcast transmission to the reception terminals; and receiving feedback information from terminals belonging to at least one subgroup among the two or more subgroups according to the different groupcast feedback schemes.

Abstract: The present invention relates to a composition comprising at least one selected from the group consisting of a novel lactic acid bacterium, Lactobacillus plantarum KBL396 (KCTC13278BP), culture of the strain, lysate of the strain and extract of the strain, and its use for food and medicine. The strain and composition according to the present invention has an excellent effect on improvement of neurological diseases, particularly improvement of mental disorders and neurodegenerative diseases, and has no risk of side effects in a human body, and thus it can be usefully utilized as a use for improvement of neurological diseases.

Abstract: A sidelink communication method performed by a UE in a communication system may comprise receiving, from a base station, a message including configuration information of a subchannel which is a sensing unit of a resource pool; determining a size of the subchannel based on the configuration information; and performing a sensing operation in units of the subchannel in the resource pool. Therefore, the sidelink communication can be efficiently performed, and the performance of the communication system can be improved.

Abstract: An operation method of a first terminal, performed in a communication system, may comprise receiving sidelink resource allocation information from a base station; receiving a first sidelink signal from a second terminal based on the sidelink resource allocation information; calculating a path loss experienced by the first sidelink signal based on the first sidelink signal; transmitting a second sidelink signal including information on the path loss experienced by the first sidelink signal to the second terminal; and receiving, from the second terminal, a third sidelink signal to which a sidelink transmit power determined based on the path loss is allocated.

Abstract: An operation method of a terminal in a communication system includes receiving a message from a base station, the message including physical random access channel (PRACH) configuration information indicating a PRACH slot; determining a start symbol to which a PRACH is mapped among symbols constituting the PRACH slot based on a type of the PRACH slot; mapping the PRACH from the start symbol in the PRACH slot; and transmitting the PRACH mapped to the PRACH slot to the base station.

Abstract: An operation method of a first terminal, performed in a communication system, may comprise receiving sidelink resource allocation information from a base station; receiving a first sidelink signal from a second terminal based on the sidelink resource allocation information; calculating a path loss experienced by the first sidelink signal based on the first sidelink signal; transmitting a second sidelink signal including information on the path loss experienced by the first sidelink signal to the second terminal; and receiving, from the second terminal, a third sidelink signal to which a sidelink transmit power determined based on the path loss is allocated.

Abstract: A method of performing, by a device, a random access procedure in a radio communication system includes: receiving from a base station RACH configuration information; and transmitting a first message based on the received RACH configuration information. Herein, a plurality of SSBs may be in association with a plurality of preambles, and the first message may be transmitted in a time domain through a plurality of RACH resources.

Abstract: A method for sidelink groupcast transmission, performed by a transmitting terminal, may comprise configuring a first feedback resource located at a first time point and a second feedback resource located at a later time point than the first time point; transmitting groupcast control information and groupcast data to a receiving terminal group; receiving first feedback information through the first feedback resource from at least one terminal belonging to a first subgroup of the receiving terminal group; and receiving second feedback information through the second feedback resource from at least one terminal belonging to a second subgroup of the receiving terminal group.

Abstract: A sidelink communication method performed by a UE in a communication system may comprise receiving, from a base station, a message including configuration information of a subchannel which is a sensing unit of a resource pool; determining a size of the subchannel based on the configuration information; and performing a sensing operation in units of the subchannel in the resource pool. Therefore, the sidelink communication can be efficiently performed, and the performance of the communication system can be improved.

Abstract: An operation method of a terminal in a communication system includes receiving a message from a base station, the message including physical random access channel (PRACH) configuration information indicating a PRACH slot; determining a start symbol to which a PRACH is mapped among symbols constituting the PRACH slot based on a type of the PRACH slot; mapping the PRACH from the start symbol in the PRACH slot; and transmitting the PRACH mapped to the PRACH slot to the base station.

Abstract: A method of performing, by a device, a random access procedure in a radio communication system includes: receiving from a base station RACH configuration information; and transmitting a first message based on the received RACH configuration information. Herein, a plurality of SSBs may be in association with a plurality of preambles, and the first message may be transmitted in a time domain through a plurality of RACH resources.

Abstract: A ceramic electronic component includes a ceramic body; internal electrodes disposed in the ceramic body; external electrodes disposed on outer surfaces of the ceramic body and electrically connected to the internal electrodes; and tin plating layers disposed on the external electrodes.

Abstract: There is provided a multilayer ceramic electronic component including: a ceramic body in which internal electrodes containing a first electrode material and dielectric layers are alternately disposed; external electrodes provided on outer surfaces of the ceramic body and containing a second electrode material; and diffusion parts each disposed to be connected to one end of the internal electrode and the external electrode and containing the first electrode material and the second electrode material mixed with each other, wherein the diffusion part includes an internal diffusion portion disposed within the ceramic body and an external diffusion portion protruding outside of the ceramic body.

Abstract: A multilayer ceramic capacitor and manufacturing method therefor, in which the capacitor includes a ceramic body including dielectric layers and internal electrodes; electrode layers connected to the internal electrodes; and a conductive resin layer formed on the electrode layers and including a first conductor, a second conductor having a fiber shape, and a base resin.

Abstract: A multilayer ceramic capacitor includes a ceramic body including a plurality of dielectric layers and first and second internal electrodes; and first and second external electrodes connected to the first and second internal electrodes, respectively. The first and second external electrodes include: first and second connection layers including the same first conductive material as the first and second internal electrodes and formed on opposite surfaces of the ceramic body to be connected to the first and second internal electrodes, respectively; and first and second terminal layers including a second conductive material different from the first conductive material and formed on the opposite surfaces of the ceramic body to cover the first and second connection layers.

Abstract: A ceramic electronic component includes a ceramic body; internal electrodes disposed in the ceramic body; external electrodes disposed on outer surfaces of the ceramic body and electrically connected to the internal electrodes; and tin plating layers disposed on the external electrodes.