Abstract: Disclosed is a technique for enabling a terminal and a base station to communicate through a non-terrestrial network. A method of a terminal for communicating through a non-terrestrial network (NTN) includes the steps of: receiving, from a base station, configuration information for controlling cell measurement or cell measurement reporting in the NTN; determining whether to perform cell measurement or cell measurement reporting by using the configuration information; and controlling a cell measurement or cell measurement reporting operation according to the determination result.

Abstract: Provided are a data processing method and device based on integrated access and backhaul (IAB) using 5G NR wireless communication technology. A method of a relay node may be provided for processing uplink user data. The method may include: receiving uplink user data from a user equipment; deriving a user equipment bearer identifier (UE-bearer-ID) by using logical channel identification information linked to an RLC PDU of uplink user data; selecting a backhaul RLC channel for transmission of uplink user data on the basis of at least one among a user equipment bearer identifier and donor base station address information; and transmitting uplink user data, via the selected backhaul RLC channel, to a donor base station or another relay node.

Abstract: Provided is an ultra-high-voltage direct-current (DC) power cable system. Specifically, the present disclosure relates to an ultra-high-voltage DC power cable system capable of simultaneously preventing or minimizing electric field distortion, a reduction of DC dielectric strength, and a reduction of impulse breakdown strength due to the accumulation of space charges in an insulating layer of a cable and an insulating material of an intermediate connection part.

Abstract: Provided are a terminal and a network node and method thereof for performing communication in a non-terrestrial network. The method includes receiving system information including reference round trip delay offset information of a non-terrestrial network cell, performing a random access procedure in the non-terrestrial network cell; receiving configuration information for performing communication using the non-terrestrial network cell, and controlling a discontinuous reception (DRX) operation on the basis of the configuration information.

Abstract: Provided are a method and an apparatus for configuring a sidelink radio bearer on a sidelink interface used for vehicle communication and processing radio link failure. The method may include receiving sidelink radio bearer configuration information for configuring a sidelink radio bearer on a sidelink interface used for the vehicle communication from a base station; configuring the sidelink radio bearer based on the sidelink radio bearer configuration information, and transmitting the sidelink radio bearer configuration information to another UE subject to the vehicle communication; detecting a sidelink radio link failure when an acknowledged mode (AM) radio link control (RLC) entity linked to the sidelink radio bearer reaches a maximum number of retransmissions; and indicating the detection of the sidelink radio link failure to a higher layer regardless of a radio resource control (RRC) state of the UE when the sidelink radio link failure is detected.

Abstract: Provided are methods and devices for data duplicate transmission in a next-generation/5G radio access network. The method of a UE for transmitting data may include configuring a plurality of radio link control (RLC) objects which are linked to a single packet data convergence protocol (PDCP) object and used to process duplicate transmission for a wireless bearer, on the basis of configuration information for configuring duplicate transmission of data received from a base station; receiving a MAC control element comprising indication information indicating an activation state change for the plurality of RLC objects; changing, to an active state, an RLC object indicated by the indication information to be in the active state; and performing duplicate transmission of the data using the activated RLC object.

Abstract: The present invention relates to a spiral-wound filter module exhibiting almost no heavy metal leaching and a manufacturing method thereof, and specifically, to a spiral-wound filter module, which can be used as a filter for producing safe drinking water by substantially reducing the amount of a heavy metal leached when immersed in water, and a manufacturing method thereof.

Abstract: Provided are a method of a base station for controlling transmission and reception of data through a network slice. The method includes: receiving network slice request information from a terminal in which a network slice is configured; controlling so as to deliver the network slice request information to a core network entity; and receiving, from the core network entity, specific network slice information configured on the basis of the network slice request information.

Abstract: Provided are apparatus and method for processing MBS data. The method for receiving multicast/broadcast service (MBS) by a user equipment (UE) may include, when handover is determined, receiving, through a source base station, radio bearer configuration information for receiving MBS session data through a target base station, configuring a radio bearer for receiving the MBS session data through the target base station based on the radio bearer configuration information, and receiving the MBS session data through the radio bearer. The radio bearer configuration information is information generated by the target base station and transmitted to the source base station.

Abstract: Provided is a method and an apparatus for for changing or controlling a state of a secondary cell in carrier aggregation. The method includes receiving secondary cell (SCell) state indication information indicating a state for a SCell from a base station through an RRC message or an MAC control element, causing a state of the SCell to transition into a dormant state when the SCell state indication information indicates the dormant state, and transmitting channel state information reporting for the SCell in the dormant state according to an dormant state CQI report period parameter set separately from an activation state CQI report period parameter.

Abstract: Provided are methods and apparatus for performing communication in an unlicensed band. The method includes: detecting a channel occupation failure of an unlicensed band wireless resource for transmitting and receiving uplink data or downlink data; determining that channel access fails in the unlicensed band wireless resource if the channel occupation failure satisfies certain criteria; and transmitting upper layer signaling to a base station if channel access fails.

Abstract: Provided are a method and apparatus for enabling a user equipment to perform a paging operation. The method includes: monitoring whether a paging message is present at a set of PDCCH monitoring occasions included in a paging occasion, detecting whether a base station has accessed to a channel including a frequency band over which the paging message is transmitted at one or more of the PDCCH monitoring occasions, and stopping the monitoring when detecting that the base station has accessed the channel.

Abstract: Provided are a method of a base station for controlling transmission and reception of data through a network slice. The method includes: receiving network slice request information from a terminal in which a network slice is configured; controlling so as to deliver the network slice request information to a core network entity; and receiving, from the core network entity, specific network slice information configured on the basis of the network slice request information.

Abstract: Provided is a method and an apparatus for changing or controlling a state of a secondary cell in carrier aggregation. The method includes receiving secondary cell (SCell) state indication information indicating a state for a SCell from a base station through an RRC message or an MAC control element, causing a state of the SCell to transition into a dormant state when the SCell state indication information indicates the dormant state, and transmitting channel state information reporting for the SCell in the dormant state according to an dormant state CQI report period parameter set separately from an activation state CQI report period parameter.

Abstract: Provided is a method and apparatus for processing control plane data to enable an evolve Node B (eNB) and a User Equipment (UE) to transmit and/or receive user plane data through a WLAN carrier when the user plane data is transmitted by adding a WLAN radio resource to an E-UTRAN carrier in a radio access network (RAN) level. Particularly, provided is a method for a UE to transmit and receive data, the method including: receiving, from an eNB, wireless local area network (WLAN) cell configuration information which is for transmitting and receiving data using a WLAN radio resource; performing WLAN association based on the WLAN cell configuration information; transmitting a WLAN access confirmation message to the eNB; and receiving, from the eNB through a higher layer signaling, tunnel configuration information which is for the UE to set up a tunnel with the eNB through the WLAN radio resource.

Abstract: Provided are methods and apparatuses of processing data in an integrated access and backhaul (IAB) node using new radio (NR) wireless communication technology. The method of an integrated access and backhaul (IAB) node processes data, includes: configuring a mobile-termination (MT) function and a distribute unit function of the IAB node; monitoring an uplink buffer state or a downlink buffer state in the IAB node; and transmitting downlink buffer state information or uplink buffer state information to the donor base station or an associated parent IAB node on the basis of a monitoring result of the uplink buffer state or the downlink buffer state.

Abstract: Provided are methods and apparatuses for transmitting a buffer status report in carrier aggregation environment. The method may include receiving, from a base station, high layer signaling including information for configuring data duplicate transmission using carrier aggregation, configuring a plurality of radio link control (RLC) entities including a first RLC entity and a second RLC entity associated with one packet data convergence protocol (PDCP) entity based on the high layer signaling, and configuring a logical channel associated with the first RLC entity and a logical channel associated with the second RLC entity to one medium access control (MAC) entity; and when the data duplicate transmission is activated, transmitting, to the base station, the buffer status report including PDCP data volume in both a logical channel group associated with the first RLC entity and a logical channel group associated with the second RLC entity.

Abstract: The provided is a method and apparatus for adding a WLAN carrier to an E-UTRAN carrier at a radio access network (RAN) level to transmit and receive data. The method may include: receiving, from a base station, additional configuration indication information for additionally configuring a WLAN carrier; additionally configuring the WLAN carrier on the basis of the additional configuration indicating information; and attempting WLAN associating through the WLAN carrier using UE identification information, wherein a WLAN end transmits confirmation information for the WLAN association of the UE to the base station.

Abstract: Provided are a data processing method and device based on integrated access and backhaul (IAB) using 5G NR wireless communication technology. A method of a relay node may be provided for processing uplink user data. The method may include: receiving uplink user data from a user equipment; deriving a user equipment bearer identifier (UE-bearer-ID) by using logical channel identification information linked to an RLC PDU of uplink user data; selecting a backhaul RLC channel for transmission of uplink user data on the basis of at least one among a user equipment bearer identifier and donor base station address information; and transmitting uplink user data, via the selected backhaul RLC channel, to a donor base station or another relay node.

Abstract: Provided are a connection control method and device based on integrated access and backhaul (IAB) using 5G NR wireless communication technology. The method of a relay node for processing an RRC message may include: setting a donor base station with a signaling radio bearer or a higher layer protocol connection; receiving an RRC message transmitted from a terminal; and transmitting the RRC message to the donor base station or another relay node using the signaling radio bearer or a higher layer protocol.