Abstract: A method for transmitting, by a terminal, a sounding reference signal (SRS) comprises: a step of, if an SRS transmission and a transmission of an uplink channel collide in a first slot, dropping the transmission of an SRS symbol colliding in the first slot and transmitting an SRS symbol not colliding in the first slot; and a step of transmitting an SRS symbol in a second slot on the basis of a hopping pattern set for the dropped SRS symbol, wherein when the transmission count of the last SRS symbol colliding in the first slot is K, the transmission count for the first SRS symbol transmitted in the second slot is K+1.

Abstract: Disclosed is a Doppler measurement method comprising: generating a first function defined by reception signals in two consecutive subcarriers for a specific OFDM symbol; generating a second function defined on the basis of the signs and sizes of a real part and an imaginary part of the first function; repeatedly performing a process of generating the first function and the second function for all of a set of OFDM symbols; and determining, as a Doppler value, the phase of a third function obtained by adding the results of repeatedly performing the process.

Abstract: A method for transmitting an SRS resource by a terminal when all cyclic shifts (CSs) of a sounding reference signal (SRS) resource are not used for SRS comprises the steps of: receiving information on the usage of a CS that is not used for a SRS; receiving information on an SRS resource index, a CS index that is not used for the SRS, and a usage specifying index; and transmitting the SRS resource by using the CS index, wherein the usage of the SRS resource is determined on the basis of information on the usage of the CS and the usage specifying index

Abstract: According to the present invention, system information in a wireless communication system is transmitted when there is a request from user equipment. A random access channel resource for a system information request is configured. The user equipment can transmit a random access channel by using the random access channel resource when the reception of the system information is needed. A base station can transmit corresponding system information when the random access channel using the random access channel resource configured for the system information request is received.

Abstract: A method for receiving feedback information by a first moving object may comprise the steps of: transmitting a sidelink sounding reference signal (SRS) to a second moving object through each of distributed transmit antennas; receiving, from the second moving object, feedback information including first information associated with the similarity in coherent time between each of distributed receive antennas of the second moving object; and setting a transmission period of the sidelink SRS on the basis of the feedback information.

Abstract: According to an embodiment of the present specification, provided is a method for transmitting a signal that allows a user equipment to cancel phase noise by a base station in an mmWave communication system. In this case, the method may include: generating a PTRS for estimating phase noise of a downlink signal; transmitting PTRS power boosting level information for the PTRS to the user equipment via downlink signaling; and transmitting the PTRS via downlink signaling based on the PTRS power boosting level information. In this case, the PTRS power boosting level information may be determined based on at least one of MCS level and PRB size.

Abstract: The present specification relates to a method for transmitting and receiving a signal to/from a base station by a terminal in an inter-vehicle communication system, wherein the method for transmitting a signal may comprise: a step for receiving a reference signal; a step for feeding-back channel information on the basis of the received reference signal; and a step for receiving data on the basis of the channel information, and wherein the terminal includes a plurality of distributed antenna units (DUs), and if selection of whether each of the plurality of DUs is activated is possible, the channel information may include DU index set information and channel state information (CSI).

Abstract: In a wireless communication system according to the present invention, a plurality of synchronization signals may be transmitted on a cell. The plurality of synchronization signals may be respectively associated with a plurality of random access channel establishments. A user equipment may receive at least one of the plurality of synchronization signals. The user equipment may transmit a random access channel using a random access channel.

Abstract: A method of transmitting a sounding reference symbol (SRS) at a user equipment (UE) includes receiving, from a base station, first information including information on at least one predetermined SRS sequence parameter configured in association with a frequency hopping pattern among SRS sequence parameters, generating an SRS sequence using a value of a parameter corresponding to a frequency hopping pattern configured in the UE with respect to the at least one predetermined SRS sequence parameter, and transmitting the SRS, to which the generated SRS sequence is applied, to the base station through SRS resources.

Abstract: A method by which a base station transmits a reference signal in a wireless communication system can comprise the steps of: transmitting, to a terminal, information on a modulation method of a reference signal for estimating a phase difference between symbols in a time domain; and transmitting, to the terminal, the reference signal, for estimating the phase difference between the symbols, to which the modulation method is applied.

Abstract: Disclosed are a signal transmission method and a base station, the signal transmission method comprising: generating a PTRS used for estimating phase noise in a downlink signal; transmitting, to a terminal, at least one form among information indicating whether the PTRS is transmitted by means of downlink signaling, and information indicating an antenna port of the PTRS; and transmitting the PTRS to the terminal in accordance with the information transmitted thereto.

Abstract: Disclosed in the present application is a method for transmitting, by a terminal, an uplink signal to a base station through a plurality of antenna ports in a wireless communication system. Specifically, the method comprises the steps of: transmitting, to the base station, uplink reference signals corresponding to the plurality of antenna ports and antenna port grouping information: receiving, from the base station, information on an uplink precoder, which is determined on the basis of the uplink reference signals and the antenna port group information; precoding the uplink signal using the information on the uplink precoder; and transmitting the precoded uplink signal to the base station, wherein the antenna port grouping information comprises information on antenna port groups comprising the plurality of antenna ports and information of the signal distortion level between the antenna port groups.

Abstract: A method for transmitting an SRS by a terminal may comprise the steps of: receiving, from a base station, information on a first bandwidth part (BWP) and a second BWP set for SRS transmission of the terminal; and when a frequency starting position for SRS transmission in the second BWP having a lower priority than the first BWP overlaps the first BWP, transmitting the SRS to the base station at an SRS bandwidth position different from an SRS bandwidth position associated with the frequency starting position for the SRS transmission.

Abstract: A method for a terminal receiving a beam reference signal (BRS) and a physical broadcast channel (PBCH) in a wireless communication system can comprise the steps of: determining a power ratio of BRS to PBCH per resource element (RE) on the basis of the number of BRS ports; detecting the BRS and a demodulation reference signal (DMRS) on the basis of the number of the BRS ports; and determining whether or not the determined power ratio of BRS to PBCH is to be compensated to an estimated channel on the basis of the DMRS.

Abstract: Disclosed in the present application is a method for transmitting, by a terminal, an uplink signal to a base station through a plurality of antenna ports in a wireless communication system. Specifically, the method comprises the steps of: transmitting, to the base station, uplink reference signals corresponding to the plurality of antenna ports and antenna port grouping information: receiving, from the base station, information on an uplink precoder, which is determined on the basis of the uplink reference signals and the antenna port group information; precoding the uplink signal using the information on the uplink precoder; and transmitting the precoded uplink signal to the base station, wherein the antenna port grouping information comprises information on antenna port groups comprising the plurality of antenna ports and information of the signal distortion level between the antenna port groups.

Abstract: The method for feedback of channel quality information in a wireless communication system, according to one embodiment of the present invention, is performed by a terminal and comprises the steps of: receiving feedback configuration information, including information on disjoint segmentation indicating the indexes of channel or beam quality-related parameters for broadcast or multicast services, from a base station; and according to the information on disjoint segmentation in the feedback configuration information, encoding the index of a channel or beam quality-related parameter to be reported and transmitting same to the base station, wherein the disjoint segmentation includes multiple subsets which do not overlap and which have different lengths, and the index of the channel or beam quality-related parameter, which is transmitted to the base station, may indicate a predetermined value in one subset among the multiple subsets.

Abstract: The present disclosure relates to a method and a device for a terminal transmitting a reference signal in a wireless communication system. According to the present disclosure, a method and a device may be provided, the method comprising: receiving, from a base station, configuration information associated with a configuration of a first demodulation reference signal for demodulating uplink data; and on the basis of the configuration information, transmitting the first demodulation reference signal and the uplink data to the base station via at least one antenna port, wherein the first demodulation reference signal and the uplink data are transmitted in a sub frame by means of frequency hopping, and the first demodulation reference signal is positioned on the same time axial symbol as that of at least one other demodulation reference signal transmitted on another antenna port.

Abstract: A method by which a terminal transmits feedback information comprises the steps of: determining, in predetermined resource units for receiving the broadcast information in a broadcast resource region, whether broadcast information collides; selecting a first shared resource in a shared resource region corresponding to a first broadcast resource in which the conflict occurs in the broadcast resource region, on the basis of a pre-defined mapping rule of the broadcast resource region and the shared resource region; and transmitting, in the selected first shared resource, feedback information including information on the occurrence of the collision, wherein the broadcast resource region is a resource region, which is defined so as to transmit or receive the broadcast information, and the shared resource region can be determined as a resource region shared between a plurality of terminals.

Abstract: A method by which a user equipment (UE) performing communication controls a virtual UE, includes transmitting, to a base station (BS), at least one of information on the UE or information on a service provided by the UE, wherein the BS determines whether the virtual UE is registered or removed, based on the at least one of the information on the UE or the information on the service provided by the UE; receiving, from the BS, a connection reconfiguration command message, wherein the connection reconfiguration command message includes information on a determination of the BS of whether the virtual UE is registered or removed; and registering or removing the virtual UE based on the information on the determination of the BS included in the connection reconfiguration command message.

Abstract: A method for transmitting an SRS by a terminal may comprise the steps of: receiving, from a base station, one of an SRS resource indicator (SRI), a CSI-RS resource indicator (CRI), a synchronization signal block (SSB) identifier, and an uplink transmission configuration indicator (TCI); on the basis of whether the received indicator/identifier includes an indication that the corresponding indicator/identifier is commonly used for an SRS resource group or an indication that the corresponding indicator/identifier is used for a first SRS resource of the SRS resource group, determining whether to use the same transmission beam or use different transmission beams to transmit an SRS in the SRS resource group; on the basis of the determination, determining a transmission beam for the terminal, indicated by the received indicator/identifier; and transmitting the SRS in the first SRS resource on the basis of the transmission beam for the terminal, wherein the SRS resource group includes the first SRS resource and a se