Abstract: The video signal processing method comprises the steps of: downsampling luma components of reconstructed blocks adjacent to a current block; acquiring a maximum luma value from among the downsampled luma components based on a first index; acquiring a next-highest maximum luma value from among the downsampled luma components based on a second index; acquiring a maximum average luma value based on an average value of the maximum luma value and the next-highest maximum luma value; acquiring a next-lowest minimum luma value from among the downsampled luma components based on a third index; acquiring a minimum luma value from among the downsampled luma components based on a fourth index; and acquiring a minimum average luma value based on the next-lowest minimum luma value and the minimum luma value.

Abstract: Disclosed is a method for a station (STA) to transmit a frame in a wireless communication system. In the present invention, the STA receives a management frame including a first operation element and a second operation element from an access point (AP), and transmits a PPDU to the AP on the basis of the first operation element or the second operation element. Here, the first operation element may indicate a basic service set (BSS) operation channel for a legacy STA, and the second operation element may indicate a BSS operation channel for the STA that is not the legacy STA.

Abstract: Disclosed is a multi-link device comprising multiple stations operating in multiple links, respectively. The multi-link operation device comprises: a transceiver; and a processor. The processor transmits a target wake time (TWT) element from a first station which is one of the multiple stations and is coupled to a first AP in a first link, so as to request a TWT agreement with a second station operating in a second link, for a second AP coupled to the second station.

Abstract: The present invention relates to a wireless communication method for simultaneous data transmission and a wireless communication terminal using the same, and more particularly, a wireless communication method in which a plurality of terminals simultaneously transmit data for improving a data throughput in a high density environment, and a wireless communication terminal using the same. To this end, the present invention provides a wireless communication method for a terminal including transmitting a trigger frame indicating simultaneous uplink data transmission of multi-users, receiving uplink data transmitted by a plurality of terminals in response to the trigger frame, and transmitting a block acknowledgement for the plurality of terminals having transmitted the uplink data, and a wireless communication terminal using the same.

Abstract: Provided is a wireless communication terminal. The wireless communication terminal includes a transceiver configured to transmit/receive a wireless signal and a processor configured to control an operation of the wireless communication terminal. The transceiver receives a MAC frame including information on a plurality of wireless communication terminals that are to receive data from a base wireless communication terminal. The plurality of wireless communication terminals include the wireless communication terminal and receive data from the base wireless communication terminal based on the MAC frame.

Abstract: A method by which a terminal transmits an uplink channel in a wireless communication system comprises steps of: receiving, from a base station, first information, which is information related to a time division duplex (TDD) configuration; and repeatedly transmitting, to the base station, an uplink channel on a resource determined on the basis of the first information.

Abstract: Disclosed is a video signal processing method and device for encoding or decoding a video signal. More specifically, disclosed are a video signal processing method and a video signal processing device for performing the method, the method comprising: obtaining reference line information indicating a reference line for intra prediction of a current block among a plurality of reference lines comprising neighboring samples of the current block; determining, on the basis of the reference line information, an intra prediction mode for the current block among a plurality of intra prediction modes constituting an intra prediction mode set; and decoding the current block on the basis of a plurality of reference samples on the reference line according to the reference line information and the determined intra prediction mode.

Abstract: Provided is a wireless communication terminal that communicates wirelessly. The wireless communication terminal includes: a transceiver; and a processor. The processor receiving trigger information from a base wireless communication terminal using the transceiver, and transmits an Aggregate-MAC Protocol Data Unit (A-MPDU) to the base wireless communication terminal based on the trigger information.

Abstract: Provided is a wireless communication terminal that communicates wirelessly. The terminal includes: a transceiver; and a processor. The processor is configured to receive a Downlink Multi-User (DL MU) PPDU including information for an Uplink Multi-User (UL MU) transmission from a base wireless communication terminal by using the transceiver, and transmit the UL MU PPDU to the base wireless communication terminal based on the information for UL MU transmission.

Abstract: The present invention relates to a wireless communication terminal and a wireless communication method for efficiently scheduling multi-user uplink transmission. To this end, provided are a wireless communication terminal, including: a transceiver; and a processor, wherein the processor is configured to: receive, by the transceiver, a trigger frame that triggers a multi-user uplink transmission, perform a multi-user uplink transmission in response to the received trigger frame, and receive, by the transceiver, an ACK for the multi-user uplink transmission, wherein when the multi-user uplink transmission is performed on a resource unit in which a temporary association identifier (AID) is assigned by the received trigger frame, the processor obtains ACK information for the terminal from the ACK for the multi-user uplink transmission based on the temporary AID and a wireless communication method using the same.

Abstract: A method by which a terminal transmits an uplink channel in a wireless communication system comprises steps of: receiving, from a base station, first information, which is information related to a time division duplex (TDD) configuration; and repeatedly transmitting, to the base station, an uplink channel on a resource determined on the basis of the first information.

Abstract: Disclosed is a video signal processing method and device that encodes or decodes a video signal. In particular, the video signal processing method may comprise the steps of: parsing a first syntax element indicating whether a merge mode is applied to a current block; when the merge mode is applied to the current block, determining whether to parse a second syntax element on the basis of a first predefined condition, wherein the second syntax element indicates whether a first mode or a second mode is applied to the current block; when the first mode and the second mode are not applied to the current block, determining whether to parse a third syntax element on the basis of a second predefined condition; and determining a mode applied to the current block on the basis of the second syntax element or the third syntax element.

Abstract: Disclosed are a video signal processing method and apparatus for encoding or decoding a video signal. In more detail, the video signal processing method includes receiving intra prediction mode information for a current block, wherein the intra prediction mode information indicates one of a plurality of intra prediction modes configuring an intra prediction mode set; and decoding the current block based on the received intra prediction mode information, wherein the intra prediction mode set comprises a plurality of angle modes, and the plurality of angle modes comprises a basic angle mode and an extended angle mode, wherein the extended angle mode is signaled based on the basic angle mode.

Abstract: Disclosed is a wireless communication terminal to communicate wirelessly. The wireless communication terminal includes: a first wireless transceiver configured to transmit and receive signals modulated by a first modulation method; a second wireless receiver configured to receive a signal modulated by a second modulation method different from the first modulation method; and a processor. The processor is configured to sequentially receive a plurality of fields of a wake-up radio (WUR) frame included in a WUR physical layer processing data unit (PPDU) transmitted by the second modulation method, and when a predetermined condition for the plurality of fields is satisfied, stop receiving the WUR frame without determining whether values of the plurality of fields are valid.

Abstract: Provided is a wireless communication terminal. The wireless communication terminal includes a transceiver configured to transmit and receive a wireless signal and a processor configured to control an operation of the wireless communication terminal. The processor collects data to be transmitted to a plurality of terminals, generates an aggregate-MAC protocol data unit for transmitting data to the plurality of terminals at the same time, and transmits the aggregate-MAC protocol data unit to the plurality of terminals.

Abstract: The present invention relates to a wireless communication method for uplink multi-user transmission scheduling and a wireless communication terminal using the same. To this end, provided are a base wireless communication terminal comprising a processor and a transceiver, wherein the processor transmits a trigger frame soliciting an uplink multi-user transmission, determines whether the uplink multi-user transmission is successful based on received uplink multi-user data in response to the trigger frame, and retransmits the trigger frame when it is determined that the uplink multi-user transmission has failed and a wireless communication method using the same.

Abstract: A wireless communication terminal communicating wirelessly is provided. The wireless communication terminal includes: a first wireless transceiver for transmitting and receiving a signal transmitted through a first modulation method; a second wireless receiver for receiving a signal transmitted through a second modulation method different from the first modulation method; and a processor. The processor receives a wake-up packet from a base wireless communication terminal through the second wireless receiver, and wakes-up the first wireless transceiver based on the wake-up packet, and maintains the second wireless receiver in a state capable of receiving at least from a time point at which the wake-up packet is received until a time point an exchange of frames with the base wireless communication terminal for the first time through the first wireless transceiver.

Abstract: A base station and a user equipment of a wireless communication system are disclosed. Each of the base station and the user equipment of the wireless communication includes a communication module; and a processor. The processor is configured to receive signaling information related to the start of uplink (UL) transmission from the base station through the communication module. The processor is configured to determine whether to perform a UL transmission using a partial subframe based on the signaling information. When the processor performs the UL transmission using the partial subframe, the processor is configured to determine a symbol configuration of the partial subframe based on the signaling information and perform, through the communication module, the UL transmission using the partial subframe according to the symbol configuration. At this time, the partial subframe is a subframe which occupies less than 14 symbols.

Abstract: Provided is a wireless communication terminal wirelessly communicating with a base wireless communication terminal. The wireless communication terminal comprises a transceiver and the processor. The processer receives, by using the transceiver, a wireless signal including a trigger frame from the base wireless communication terminal and transmits, by using the transceiver, buffer status information to the base wireless communication terminal based on the trigger frame. The buffer status information is included in a QoS control field which signals information on a QoS control of a MAC header.

Abstract: Disclosed is a method by which a station (STA) of a multi-link device (MLD) transmits frames in a wireless communication system. In the present invention, an MLD transmits, to an AP MLD including at least one access point (AP), a request message related to a channel access, and receives a response message in response to the request message.