Abstract: A switchable display system for providing virtual reality or augmented reality using a color calibration display apparatus may comprise: an augmented reality data server configured to provide virtual reality and augmented reality information; and a color calibration display apparatus using a color calibration display module configured to perform color calibration according to ambient illuminance in a use environment.

Abstract: An operation method of a terminal may comprise: receiving information on a common delay time between the terminal and the base station and information on a PRACH occasion through a service link established between the terminal and the satellite; calculating a first adjustment value based on the common delay time; transmitting a PRACH preamble through the service link at a first timing earlier by the first adjustment value than the PRACH occasion; receiving a random access response (RAR); calculating a second adjustment value based on the common delay time; and transmitting an uplink signal through the service link at a second timing later by the second adjustment value than the response delay time.

Abstract: A secondary battery according to exemplary embodiments of the present invention includes an electrode assembly including a plurality of electrodes and a separation membrane disposed between the electrodes, a case configured to receive the electrode assembly, electrode tabs which are connected with the electrodes and protrude to an outside of the case, and a thermoelectric unit configured to at least partially cover the electrode tab. The thermoelectric unit includes an insulator, and a thermoelectric region which includes thermoelectric elements included in the insulator or attached to the insulator, and is disposed to be overlapped with the electrode tab in a planar direction.

Abstract: The present invention relates to an uplink control information transmission method and device which can improve channel estimation performance of a base station. A terminal operation method for transmitting uplink control information to a base station, according to an embodiment of the present invention, comprises the steps of: receiving, from the base station, resource location information for transmission of a UCI channel; mapping UCI to at least one symbol on the basis of the resource location information, and mapping a reference signal in consideration of frequency selectivity characteristics and time selectivity characteristics of a wireless channel; and transmitting, to the base station, a subframe including the at least one symbol.

Abstract: A handover method for a satellite base station, performed by a terminal, may comprise selecting at least one candidate satellite base station; performing signal strength measurement on a first candidate satellite base station among the at least one candidate satellite base station; in response to determining that the first candidate satellite base station is available according to a result of the signal strength measurement, selecting the first candidate satellite base station as a target satellite base station; and in response to determining that the first candidate satellite base station is not available according to the result of the signal strength measurement, performing signal strength measurement on a second candidate satellite base station among the at least one candidate satellite base station.

Abstract: A handover method performed by a terminal in a non-terrestrial network may comprise transmitting a measurement report including measurement results for neighbor cells to a serving satellite base station; receiving, from the serving satellite base station, connection configuration information for at least one target base station candidate and information on an activation time when the connection configuration information for the at least one target base station candidate is activated; and performing a handover to a first target base station candidate among the at least one target base station candidate based on information received from the at least one target base station candidate at the activation time.

Abstract: An operation method for a communication node transmitting system information in a communication network is an operation method for a base station which transmits system information in a communication network, and includes: configuring information on a request time when system information is requested and a transmission time when the system information is transmitted in a communication network; transmitting a message including the configured information on the request time and the transmission time by using a broadcast-based method; receiving, from at least one user equipment included in the communication network, a message requesting the system information on the basis of the request time; and transmitting a message including the system information to the at least one user equipment on the basis of the transmission time.

Abstract: Disclosed are operation methods of communication node supporting direct communications in network. The operation method may comprise generating control information which includes parameters used for transmitting and receiving data; transmitting, to a second UE, the control information through a physical sidelink control channel (PSCCH); and transmitting, to the second UE, the data through a physical sidelink shared channel (PSSCH) based on the parameters. Therefore, a performance of the network can be enhanced.

Abstract: A method and apparatus for transmitting or receiving a control channel in a communication system. A method for transmitting control information by a base station includes: configuring a control resource set including a plurality of REGs; interleaving, on a frequency axis, the plurality of REGs included in the control resource set; configuring an REG pool including at least two interleaved REGs; configuring at least one CCE in the REG pool; and transmitting control information through a search space configured by the at least one CCE. Therefore, the present invention improves performance of a communication system.

Abstract: An operation method of a base station in a communication system includes transmitting, to a terminal, a radio resource control (RRC) message including transmission configuration information (TCI)-state configuration information including information indicating a starting beam index and an ending beam index and reference signal related information; transmitting, to the terminal, a first downlink control information (DCI) including a first TCI indicating the starting beam index and first resource allocation information; and transmitting, to the terminal, a first physical downlink shared channel (PDSCH) through a resource indicated by the first resource allocation information by using a starting beam indicated by the first TCI.

Abstract: A transmission method of a base station is provided. The base station generates a physical channel or a physical signal using a physical resource block (PRB) that is a resource allocation unit in a frequency domain. The base station transmits the physical channel or the physical signal.

Abstract: A transmission method of a base station is provided. The base station generates a first discovery signal block including a first PSS (primary synchronization signal) and a first SSS (secondary synchronization signal). The base station generates a second discovery signal block including a second PSS and a second SSS. Also, the base station transmits the first discovery signal block and the second discovery signal block.

Abstract: The present invention relates to a device for evaluating the performance of a superconductive coil for a high-temperature superconductive rotary machine and a method for evaluating the performance of a superconductive coil thereby. The technical gist of the present invention is to provide schemes for evaluating the stability of a superconductive coil and verifying the reliability thereof, to evaluate/confirm whether or not the same can be commercialized, and to evaluate/confirm the threshold current of a superconductive wire for manufacturing a superconductive coil or the upper limit of the operating current thereof, and is characterized in that the electromagnetic, thermal, and mechanical performances of a superconductive coil for a second-generation high-temperature superconductive rotary machine can be evaluated.

Abstract: In the present invention, not only a movement path of a current generated from a first electrode assembly, but also a movement path of a current generated from a second electrode assembly are provided by a cathode conductive member, and not only a movement path of the current generated from the second electrode assembly, but also a movement path of the current generated from the first electrode assembly are provided by an anode conductive member, such that cross sectional areas of the correct movement paths are increased. Therefore, a resistance of the long width secondary battery may be reduced.

Abstract: The methods, compositions, and assays described herein are based, in part, on the discovery that CD1a mediates inflammation related to certain conditions such as urushiol exposure, psoriasis and other inflammatory skin diseases. One aspect provided herein relates to a method for treating or preventing an inflammatory skin disease, the method comprising: administering a therapeutically effective amount of an inhibitor of CD 1a to a subject having an inflammatory skin disease, thereby treating or preventing the inflammatory skin diseases.

Abstract: Disclosed is a method for transmitting and receiving a downlink channel and a reference signal in a communication system. A method for receiving a downlink signal performed by a terminal comprises the steps of: receiving, from a base station, a control DMRS for a downlink control channel in time-frequency resource region #1; performing demodulation and decoding operations on the downlink control channel in the time-frequency resource region #1 by using channel estimation information #1 on the basis of the control DMRS; and performing demodulation and decoding operations on a downlink data channel by using the channel estimation information #1 in a frequency band A in a time-frequency resource region #2 indicated by scheduling information obtained from the downlink control channel. Therefore, the performance of the communication system can be improved.

Abstract: In an uplink transmission method of a first communication node, the first communication node receives a reference signal configuration for an UpPTS (uplink pilot time slot) from a second communication node when the UpPTS of a special subframe and a first uplink (UL) subframe are aggregated as an extended UL subframe. Also, the first communication node allocates a reference signal to the first UL subframe of the UpPTS and the first UL subframe based on the reference signal configuration when a number of time domain symbols belonging to the UpPTS is a predetermined number or less.

Abstract: A timing synchronization method performed in a terminal may comprise receiving information on a common delay of a service link between the terminal and a base station from the base station; transmitting a physical random access channel (PRACH) preamble to the base station by reflecting the common delay with respect to a random access channel (RACH) occasion associated with a synchronization signal/physical broadcast channel (SS/PBCH) block received from the base station; receiving a first random access response (RAR) including a timing adjustment value reflecting a differential delay between the terminal and the base station from the base station; and performing uplink transmission to the base station by reflecting the common delay and the timing adjustment value.

Abstract: Disclosed is a method for configuring a bandwidth for supporting a broadband carrier in a communication system. An operation method of a base station comprises the steps of: configuring a first bandwidth part and a second bandwidth part for a terminal; configuring a reserved resource for the first bandwidth part in a resource area in which the first bandwidth part and the second bandwidth part overlap; and performing an operation of transmitting or receiving a second data channel, which is scheduled to the second bandwidth part, together with the terminal by using the reserved resource. Therefore, the performance of the communication system can be improved.

Abstract: Within one carrier, a base station reserves a first resource area for a first TTI-based transmission in a unit of first TTI within a second TTI period longer than the first TTI, and schedules a first data channel to be transmitted on the basis of the first TTI, in the first resource area.