Abstract: Disclosed are a method and a device for managing a beam in sidelink communication. An operation method of a first terminal comprises: a step for transmitting a first sidelink signal in all directions using a beam sweeping method in an initial beam management section; a step for receiving, from a second terminal, first feedback information for the first sidelink signal; a step for setting a first beam pair between the first terminal and the second terminal on the basis of the first feedback information; a step for performing sidelink communication with the second terminal using the first beam pair; and a step for, when it is necessary to reset the first beam pair, transmitting the second sidelink signal in a specific direction instead of all the directions using the beam sweeping method in a partial beam management section. Therefore, the performance of a communication system can be improved.

Abstract: Provided are a repetitive transmission method for ultra-low latency and highly-reliable communication in a wireless communication system, and an apparatus therefor. A method for transmitting data by a terminal according to an embodiment of the present invention comprises the steps of: receiving information on the repetition number of transmission for a physical uplink shared channel (PUSCH) from a base station; receiving, from the base station, information on frequency hopping applied to the the PUSCH repetition configuring the the PUSCH repetition; determining a frequency resource for the PUSCH repetition based on the information on the frequency hopping; and performing the the PUSCH repetition.

Abstract: Provided is a virtual sensor system for a digital twin application. The virtual sensor system includes an edge gateway configured to collect data collected from physical sensors in the real world, apply the collected data to a virtual sensor model, and operate virtual sensors for configuring a digital twin world, and a virtual sensor framework configured to train the virtual sensor model using data, which is measured by the physical sensors, from the edge gateway and distribute the virtual sensor model to the edge gateway.

Abstract: Disclosed are a method and a device for sidelink groupcast communication. A method for operating a transmitting terminal comprises the steps of: transmitting an SS/PBCH block for sidelink communication in all directions by using a beam sweeping method; receiving, from a plurality of receiving terminals, first feedback information about the SS/PBCH block; and transmitting a sidelink channel in a specific direction by using beams of the transmitting terminal that are determined on the basis of the first feedback information. Therefore, communication system performance can be improved.

Abstract: The present disclosure relates to an apparatus and method for transmitting RAN (Radio Access Network) slice-related information, and discloses a user equipment including: a transceiver configured to receive individual control information provided individually for each RAN slice from a network node, and to perform a random access procedure using resources individually configured for each RAN slice based on the individual control information; and a processor for controlling reception of the individual control information, and the random access procedure. Such a user equipment provides an effect of being able to separately transmit control information including, for example, system information for each slice for RAN slicing.

Abstract: The present specification relates to an apparatus and method for performing random access. This specification discloses a method for performing random access by a terminal in a non-terrestrial network system, the method comprising the steps of: performing a search for a cell of a non-terrestrial network on the basis of a synchronization signal block transmitted from a non-terrestrial network node; after the search for the cell is completed, receiving, from the non-terrestrial network node, random access-related information about the cell of the non-terrestrial network; generating a random access preamble on the basis of a frequency resource area of a random access channel related to the cell of the non-terrestrial network; and transmitting the generated random access preamble to the non-terrestrial network node. Performance degradation can be reduced when random access is performed in a non-terrestrial network system.

Abstract: Disclosed are a method and a device for sidelink groupcast communication. A method for operating a transmitting terminal comprises the steps of: transmitting an SS/PBCH block for sidelink communication in all directions by using a beam sweeping method; receiving, from a plurality of receiving terminals, first feedback information about the SS/PBCH block; and transmitting a sidelink channel in a specific direction by using beams of the transmitting terminal that are determined on the basis of the first feedback information. Therefore, communication system performance can be improved.

Abstract: The present specification relates to an apparatus and method for performing random access. This specification discloses a method for performing random access by a terminal in a non-terrestrial network system, the method comprising the steps of: performing a search for a cell of a non-terrestrial network on the basis of a synchronization signal block transmitted from a non-terrestrial network node; after the search for the cell is completed, receiving, from the non-terrestrial network node, random access-related information about the cell of the non-terrestrial network; generating a random access preamble on the basis of a frequency resource area of a random access channel related to the cell of the non-terrestrial network; and transmitting the generated random access preamble to the non-terrestrial network node. Performance degradation can be reduced when random access is performed in a non-terrestrial network system.

Abstract: An operation method of a first terminal in a communication system is provided. The method includes configuring sidelink (SL) bandwidth parts (BWPs) used for groupcast sidelink communication and transmitting a configuration information message including configuration information of the SL BWPs to participating terminals participating in the groupcast sidelink communication. The groupcast sidelink communication is performed with the participating terminals using one or more SL BWPs among the SL BWPs. In response to determining that reconfiguration of the SL BWPs is necessary, the SL BWPs are reconfigured and a reconfiguration information message including reconfiguration information of the SL BWPs is transmitted to the participating terminals.

Abstract: Provided are a data transmission method for ultra low-latency, highly-reliable communication in a wireless communication system, and a device therefor. A method for transmitting data in a wireless communication system comprises the steps of: receiving, from a base station, information relating to the number of repeated transmissions with respect to uplink data; configuring a plurality of physical uplink shared channels (PUSCH) corresponding to the number of repeated transmissions, wherein the uplink data is likewise mapped to the plurality of PUSCH; and sequentially transmitting the plurality of PUSCH in a single slot, wherein the plurality of PUSCH comprises a first PUSCH and a second PUSCH, and a first frequency resource for the transmission of the first PUSCH and a second frequency resource for the transmission of the second PUSCH can be changed so as to differ from one another in the single slot.

Abstract: An operation method of a first terminal in a communication system is provided. The method includes configuring sidelink (SL) bandwidth parts (BWPs) used for groupcast sidelink communication and transmitting a configuration information message including configuration information of the SL BWPs to participating terminals participating in the groupcast sidelink communication. The groupcast sidelink communication is performed with the participating terminals using one or more SL BWPs among the SL BWPs. In response to determining that reconfiguration of the SL BWPs is necessary, the SL BWPs are reconfigured and a reconfiguration information message including reconfiguration information of the SL BWPs is transmitted to the participating terminals.

Abstract: Provided are a data transmission method for ultra low-latency, highly-reliable communication in a wireless communication system, and a device therefor. A method for transmitting data in a wireless communication system comprises the steps of: receiving, from a base station, information relating to the number of repeated transmissions with respect to uplink data; configuring a plurality of physical uplink shared channels (PUSCH) corresponding to the number of repeated transmissions, wherein the uplink data is likewise mapped to the plurality of PUSCH; and sequentially transmitting the plurality of PUSCH in a single slot, wherein the plurality of PUSCH comprises a first PUSCH and a second PUSCH, and a first frequency resource for the transmission of the first PUSCH and a second frequency resource for the transmission of the second PUSCH can be changed so as to differ from one another in the single slot.

Abstract: An operation method of a first UE in a communication system is provided. The method includes transmitting to a second UE a an SL-SSB in an omni-directional scheme and transmitting the SL-SSB in a beamforming scheme when a response message for the SL-SSB transmitted in the omni-directional scheme is not received from the second UE. Additionally, sidelink communication with the second UE according to the beamforming scheme when a response message for the SL-SSB transmitted in the beamforming scheme is received from the second UE.

Abstract: Disclosed are a device and a method for transmitting and receiving data in non-terrestrial and terrestrial network systems. According to an embodiment of the present invention, a wireless transmission and reception method performed by a user equipment in an environment where network nodes providing different cell coverages is implemented including the steps of: receiving information indicating a threshold value based on a synchronization signal block (SSB) or a reference signal received power (RSRP) from a first network node which provides a first cell coverage, measuring a channel between the first network node and the user equipment, comparing the channel measurement value with the threshold value; and on the basis of a result of comparing the channel measurement value with the threshold value, determining whether to initiate connection to a second network node which provides a second cell coverage which at least overlaps the first cell coverage.

Abstract: Disclosed are a device and method for performing a random access in a non-terrestrial network system.

Abstract: The present disclosure relates to an apparatus and method for transmitting RAN (Radio Access Network) slice-related information, and discloses a user equipment including: a transceiver configured to receive individual control information provided individually for each RAN slice from a network node, and to perform a random access procedure using resources individually configured for each RAN slice based on the individual control information; and a processor for controlling reception of the individual control information, and the random access procedure. Such a user equipment provides an effect of being able to separately transmit control information including, for example, system information for each slice for RAN slicing.

Abstract: Provided are a repetitive transmission method for ultra-low latency and highly-reliable communication in a wireless communication system, and an apparatus therefor. A method for transmitting data by a terminal according to an embodiment of the present invention comprises the steps of: receiving information on the repetition number of transmission for a physical uplink shared channel (PUSCH) from a base station; receiving, from the base station, information on frequency hopping applied to the the PUSCH repetition configuring the the PUSCH repetition; determining a frequency resource for the PUSCH repetition based on the information on the frequency hopping; and performing the the PUSCH repetition.

Abstract: An operation method of a first terminal in a communication system is provided. The method includes transmitting, to a base station, a configuration request message requesting configuration of a sidelink (SL) bandwidth part (BWP) used for sidelink communication between the first terminal and a second terminal. A configuration information message is received including configuration information of the SL BWP from the base station. The sidelink communication is performed with the second terminal using one or more SL BWPs indicated by the configuration information and in response to determining that reconfiguration of the one or more SL BWPs is necessary, a reconfiguration request message is transmitted to the base station.

Abstract: The present specification relates to an apparatus and method for performing random access. This specification discloses a method for performing random access by a terminal in a non-terrestrial network system, the method comprising the steps of: performing a search for a cell of a non-terrestrial network on the basis of a synchronization signal block transmitted from a non-terrestrial network node; after the search for the cell is completed, receiving, from the non-terrestrial network node, random access-related information about the cell of the non-terrestrial network; generating a random access preamble on the basis of a frequency resource area of a random access channel related to the cell of the non-terrestrial network; and transmitting the generated random access preamble to the non-terrestrial network node. Performance degradation can be reduced when random access is performed in a non-terrestrial network system.

Abstract: Provided are a repetitive transmission method for ultra-low latency and highly-reliable communication in a wireless communication system, and an apparatus therefor. A method for transmitting data by a terminal according to an embodiment of the present invention comprises the steps of: receiving information on the repetition number of transmission for a physical uplink shared channel (PUSCH) from a base station; receiving, from the base station, information on frequency hopping applied to the the PUSCH repetition configuring the the PUSCH repetition; determining a frequency resource for the PUSCH repetition based on the information on the frequency hopping; and performing the the PUSCH repetition.