Abstract: Provided are a method of enablement of a service application programming interface (API) exposed by an edge application server (EAS) and a device for performing the same. A service API enablement method includes performing, by a first EAS, EAS registration with an edge enabler server (EES), performing, by a second EAS, EAS registration with the EES, transmitting, by the second EAS, a service API publish request to the EES in order to publish a service API of the second EAS, discovering, by the first EAS, a service API in the EES, and invoking, by the first EAS, the service API discovered in the EES and published by a second EAS, wherein the service API publish request may include a service key performance indicator (KPI).

Abstract: Disclosed are a method and an apparatus for improving mobility management performance by reducing unnecessary handovers in a communication system. a method of a terminal may comprise: receiving cell prediction configuration information; generating measurement results by performing measurements on a serving cell and neighbor cell(s) based on signal strength measurement configuration information; and generating a result of predicting a best cell by performing best cell prediction based on the measurement results.

Abstract: A method of a terminal may comprise: generating uplink control information (UCI); receiving scheduling information for transmission of a physical uplink shared channel (PUSCH) including a first transport block (TB) and a second TB; selecting codeword(s) with which the UCI is to be multiplexed from among a codeword according to the first TB and a codeword according to the second TB; and transmitting the PUSCH in which the selected codeword(s) and the UCI are multiplexed.

Abstract: A method and apparatus of accessing a channel in a wireless local area network is provided. A destination station receives a request to send (RTS) frame to allocate a network allocation vector from a source station over a first bandwidth and transmits a clear to send (CTS) frame over a second bandwidth to the source station in response to the RTS frame. The second bandwidth is dynamically determined when a first parameter has a predetermined value.

Abstract: A method of encoding an immersive video according to the present disclosure includes determining whether an input image is a first type, converting the input image into the first type when the input image is a second type different from the first type, encoding a converted image, and generating metadata for the encoded image.

Abstract: Disclosed herein are a motion-based virtual-reality simulator device and a method for controlling the same. The motion-based virtual-reality simulator device includes a virtual-reality interface for outputting virtual reality content in a form of multi-sense data that is perceptible by a user, a virtual-reality movement implementation unit including a track component for performing continuous track motion in a state in which a user gets on the track component, the track component being configured such that a slope of the track component is controlled while a surface of the track component is deformed into an even surface or an uneven surface, and an interworking control unit for outputting a control signal to the virtual-reality movement implementation unit so that a slope and a surface of the track component are deformed in accordance with the virtual reality content that is output through the virtual-reality interface.

Abstract: Provided are a composition for a light transmittance control film, and a light transmittance control film. According to the inventive concept, the light transmittance control film includes a matrix part including a copolymer and a polymer chain which is grafted to the copolymer, and a dispersed part including a polymer derived from a first monomer, and are provided in the matrix part, wherein the polymer chain is derived from the first monomer, first light transmittance is shown while external force is applied, and second light transmittance which is greater than the first light transmittance may be shown after the external force is removed.

Abstract: A tactile music learning apparatus converts sound data of a user's voice corresponding to original music into first tactile data including tactile information, generates a synchronized tactile pattern by synchronizing the first tactile data with second tactile data including tactile information corresponding to sound data of the original music, and transfers the synchronized tactile pattern to a tactile reproducing apparatus to allow the tactile reproducing apparatus to reproduce the synchronized tactile pattern.

Abstract: Disclosed are a charge sensitive amplifier capable of minimizing a variation in a signal voltage of an output signal by applying a bias direct current to a gate of a feedback transistor, and a radiation sensor including the same. According to the charge sensitive amplifier and the radiation sensor including the same, it is possible to minimize a variation in a signal voltage of a charge sensitive amplifier output signal by applying a current, which is formed by mirroring a current bias circuit designed to be insensitive to PVT variations, to a gate of a feedback transistor. Furthermore, it is possible to reduce a variation in charging time and enable high-speed sensing by charging the signal voltage to the level of a common voltage VCOM by using a constant current supplied through a bandgap reference (BGR) circuit.

Abstract: A method and system for detecting a collision by an autonomous robot based on a multi-sensor long short-term memory (LSTM) are disclosed. The method includes generating an input of an LSTM model by combining an input image received from an autonomous robot, light detection and ranging (LiDAR) distance information, and acceleration information, learning a collision alert situation by inputting the input to the LSTM model, and determining a collision situation using an output of the LSTM model and a fully connected neural network (FNN) model.

Abstract: A method for a digital twin federation is provided. The method for a digital twin federation includes: transmitting, by a first digital twin, a connection request including digital twin information for the digital twin federation to a connection broker; receiving, by the first digital twin, connection information of a second digital twin having the digital twin information for the digital twin federation from the connection broker; and performing, by the first digital twin, connection establishment with the second digital twin using connection information of the second digital twin.

Abstract: A parity interleaving apparatus and method for variable length signaling information are disclosed. A parity interleaving apparatus according to an embodiment of the present invention includes a processor configured to generate a parity bit string for parity puncturing by segmenting parity bits of an LDPC codeword whose length is 16200 and whose code rate is 3/15, into a plurality of groups, and group-wise interleaving the groups using an order of group-wise interleaving; and memory configured to provide the parity bit string for parity puncturing to a parity puncturing unit.

Abstract: Disclosed herein are a broadcast signal transmission/reception method using multiple antennas and layered-division multiplexing and an apparatus for the same. A broadcast signal transmission apparatus includes a Multiple-Input Multiple-Output (MIMO) Bit-Interleaved Coded Modulation (BICM) unit for dividing enhanced layer data into two enhanced layer signals having different polarizations, a combination unit for generating a multiplexed signal corresponding to a first transmitting antenna by combining a core layer signal corresponding to core layer data with a first enhanced layer signal, and transmission signal generation units for generating a first transmission signal, corresponding to the multiplexed signal and transmitted through the first transmitting antenna, and a second transmission signal, corresponding to a second enhanced layer signal and transmitted through a second transmitting antenna.

Abstract: A method for indicating preemption in a communication system is disclosed. A method for operating a terminal comprises the steps of: receiving, from a base station, information indicating a first resource area, to which a preemption-capable resource belongs, for transmission of first data; receiving resource allocation information of second data from the base station; performing a monitoring operation for detecting a PI indicating a preempted resource for transmission of the first data in the first resource area, when the first resource area overlaps with a second resource area indicated by the resource allocation information; and performing decoding on the basis of the detected PI. Therefore, the performance of the communication system may be improved.

Abstract: Provided is a cellulose derivative composition for a secondary battery binder, a method of preparing a composition for a secondary battery electrode, including the same, and a secondary battery including the same. According to the inventive concept, the cellulose derivative composition for a secondary battery binder may include a compound represented by Formula 1 below.

Abstract: A method of a receiver, which relates to a Doppler frequency compensation technique in a communication system, may comprise: performing a demodulation process so that a fractional part of a Doppler shift of a received signal is compensated; and de-spreading the received signal for which the fractional part of the Doppler shift compensated from a first two-dimensional domain to a second two-dimensional domain.

Abstract: Disclosed are a method and an apparatus for codebook design in a communication system. A method of a base station may comprise: transmitting a pilot signal to a terminal by using a reconfigurable intelligent surface (RIS); receiving, from the terminal, channel information measured based on the pilot signal; estimating characteristics of elements of the RIS based on the channel information; generating a codebook based on the estimated characteristics of the elements; and transmitting the codebook to a controller of the RIS.

Abstract: Disclosed are a distributed reflector laser diode and a method for manufacturing the same. The diode includes a substrate including a DFB region and a DBR region contacting the DFB region, an active layer on the substrate of the DFB region, a first lattice on the active layer, a second lattice provided on the substrate of the DBR region and thicker than the first lattice, an upper clad layer on the first lattice and the second lattice, an ohmic contact layer on the upper clad layer of the DFB region, an upper electrode on the ohmic contact layer, an insulating layer on the clad layer of the DBR region, and a heater layer on the insulating layer.

Abstract: A method of a terminal, for channel estimation in a communication system, may comprise: receiving configuration information of a block reference signal from a base station; receiving a modulated data channel including the block reference signal according to the configuration information; and demodulating the block reference signal in the received data channel to estimate a channel for resources in a two-dimensional domain, to which the block reference signal is allocated.

Abstract: The present invention relates to a method for announce-pull data broadcasting in a blockchain based on information-centric networking (ICN). The present invention includes, transmitting announcement messages to notify having any data in the format of an ICN Interest packet, by a blockchain node, to the blockchain node's peers; receiving, by the blockchain node, data request messages, which request the data, from the blockchain node's peers, wherein data request messages for the same ICN Data packet receiving from multiple blockchain nodes can be aggregated at a middle ICN node; and transmitting, by the blockchain node, the ICN Data packet corresponding to the data request message to the blockchain node's peers, wherein the ICN Data packets can cached at the middle ICN node.