Abstract: Disclosed are methods and apparatuses for transmitting and receiving data channels in a communication system. An operation method of a terminal in a communication system may comprise receiving, from a base station, resource allocation information of a plurality of physical uplink shared channels (PUSCHs) used for repetitive transmission of a same transport block (TB); identifying a position of each of the plurality of PUSCHs in a time domain based on the resource allocation information; and repeatedly transmitting the same TB to the base station at the position of each of the plurality of PUSCHs. Therefore, performance of the communication system can be improved.

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: A method and an apparatus for communications using synchronization signal blocks. An operation method of a base station in a mobile communication system includes generating a first synchronization signal/physical broadcast channel (SS/PBCH) block including information indicating whether the first SS/PBCH block is used for initial access of the terminal; and transmitting the generated SS/PBCH block in a first bandwidth part (BP).

Abstract: The purpose of the present disclosure is to provide a thrust bearing cooling device which can improve the cooling efficiency of a thrust bearing. A thrust bearing cooling device comprising: a fluid storage tank in which a thrust bearing is installed and a fluid is stored, an outer surface of the fluid storage tank being exposed to external air; and at least one heat exchange fin provided in the fluid storage tank.

Abstract: A heterocyclic derivative represented by formula (I), or a pharmaceutically acceptable salt or a stereoisomer thereof, which has an inhibitory effect on the activation of STAT3 protein, and is useful for the prevention or treatment of diseases associated with the activation of STAT3 protein.

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 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 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: An apparatus for receiving a signal through an unlicensed band includes: a processor, a memory, and a radio frequency unit, wherein the processor executes a program stored in the memory to perform: receiving a secondary synchronization signal (SSS) in at least one remaining subframe except a subframe 0 or a subframe 5 of a plurality of subframes included in a discovery signal measurement timing configuration (DMTC), and detecting the SSS by using a subframe number of the subframe 0 or the subframe 5.

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: An apparatus for receiving a signal through an unlicensed band includes: a processor, a memory, and a radio frequency unit, wherein the processor executes a program stored in the memory to perform: receiving a secondary synchronization signal (SSS) in at least one remaining subframe except a subframe 0 or a subframe 5 of a plurality of subframes included in a discovery signal measurement timing configuration (DMTC), and detecting the SSS by using a subframe number of the subframe 0 or the subframe 5.

Abstract: A transmission method of a base station is provided. The base station configures a first resource for a physical downlink control channel (PDCCH). The base station includes configuration information of the first resource in a first physical broadcast channel (PBCH). In addition, the base station transmits the first PBCH.

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.

Abstract: A method of transmitting a grant-free uplink data channel (physical uplink shared channel (PUSCH)) (GF-PUSCH), performed in a terminal, includes determining a resource (GF-PUSCH resource) for transmission of the GF-PUSCH and an identifier (DM-RS ID) of a demodulation reference signal (DM-RS) included in the GF-PUSCH; when an uplink traffic arrives, encoding the uplink traffic into a transport block (TB); generating the DM-RS based on the DM-RS ID, and transmitting the GF-PUSCH including the TB and the DM-RS to a base station through the GF-PUSCH resource; and receiving, from the base station, a group hybrid automatic repeat request acknowledgement (HARQ-ACK) information in which ACK or negative acknowledgement (ACK/NACK) information for the GF-PUSCH of the terminal and ACK/NACK information for at least one GF-PUSCH of at least one other terminal are multiplexed, through a downlink control information (DCI).

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 method in which a base station transmits a CSI (channel state information)-RS (reference signal) in a MIMO (multiple input multiple output) antenna system is provided. The base station periodically transmits a CSI-RS for first CSI to a terminal. The base station requests the terminal to transmit second CSI in a first subframe. When a CSI-RS occasion is configured, the base station transmits a CSI-RS for the second CSI to the terminal for a duration of the CSI-RS occasion from a second subframe or to the second subframe, which is a subframe after a first offset configured for CSI-RS transmission from the first subframe.

Abstract: An operation method of a terminal for transmitting uplink control information (UCI) to a base station by multiplexing two or more UCIs in a single physical uplink control channel (PUCCH) includes: determining a first sequence corresponding to a value of a second UCI (UCI2) when the UCI2 is generated before completing transmission of a first UCI (UCI1) to the base station; modulating the first sequence by applying a modulation symbol corresponding to a value of the UCI1, and applying a orthogonal cover code (OCC) to the modulated first sequence to generate a second sequence; and transmitting the second sequence in at least one symbol position of symbols constituting the PUCCH.

Abstract: A method and an apparatus for communications using synchronization signal blocks. An operation method of a base station in a mobile communication system includes generating a first synchronization signal/physical broadcast channel (SS/PBCH) block including information indicating whether the first SS/PBCH block is used for initial access of the terminal; and transmitting the generated SS/PBCH block in a first bandwidth part (BP).

Abstract: Provided are a method for generating a CSI report and a terminal thereof. The method for generating a CSI report includes: receiving a CSI-RS from a serving cell of a base station through at least one CSI-RS resource included in a CSI-RS occasion; and generating the CSI report based on the CSI-RS received through the at least one CSI-RS resource.

Abstract: The present invention relates to a peptide thiourea derivative, a pharmaceutically acceptable salt thereof, a radioisotope labeled compound comprising the same, and a pharmaceutical composition for treating or diagnosing prostate cancer comprising the same as an active ingredient. The peptide thiourea derivative of the present invention is excellent in stability in human serum when it is administered in vivo and not only binds well to PSMA expressed in prostate cancer but also inhibits excellently PSMA at a low concentration. Besides, the derivative of the invention has a high water-solubility and can be excreted through the kidney not through the bile passage so that a clear image of the tumor region of prostate cancer can be obtained. Therefore, the derivative of the present invention can be effectively used as a pharmaceutical composition for treating and diagnosing prostate cancer.