Abstract

The present disclosure proposes a new technical method for realizing a specific configuration for dynamically/optimally controlling an RF channel in consideration of both throughput of a cell and energy saving in an O-RAN system and realizing an interface operation between O-RAN equipment related thereto, enabling dynamic/optimal control of the RF channel of the cell according to the situation.

IPC Classes  ?

• H04W 52/02 - Power saving arrangements

Abstract

In accordance with an aspect of the present disclosure, there is provided an apparatus for estimating a location of a vehicle including, a communication unit configured to receive, from an information providing vehicle, identification information and location information on a driving vehicle in a vicinity of the information providing vehicle, a weighted value obtaining unit configured to obtain a weighted value representing accuracy of the location information based on the received identification information and a location estimating unit configured to estimate a location of the driving vehicle by applying the weighted value to the location information.

IPC Classes  ?

• G01C 21/30 - Map- or contour-matching
• G06T 7/215 - Motion-based segmentation
• G06T 7/73 - Determining position or orientation of objects or cameras using feature-based methods
• G06V 10/25 - Determination of region of interest [ROI] or a volume of interest [VOI]
• G06V 20/56 - Context or environment of the image exterior to a vehicle by using sensors mounted on the vehicle
• G06V 20/58 - Recognition of moving objects or obstacles, e.g. vehicles or pedestrians; Recognition of traffic objects, e.g. traffic signs, traffic lights or roads
• G08G 1/00 - Traffic control systems for road vehicles
• G08G 1/017 - Detecting movement of traffic to be counted or controlled identifying vehicles
• G08G 1/16 - Anti-collision systems

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.

IPC Classes  ?

• H04W 72/20 - Control channels or signalling for resource management
• H04W 74/04 - Scheduled access
• H04W 84/12 - WLAN [Wireless Local Area Networks]

Abstract

The present invention relates a wireless communication method and a wireless communication terminal for supporting a spatial reuse operation of an overlapping basic service set to efficiently use a wireless resource. To this end, provided are a base wireless communication terminal including: a processor; and a communication unit, wherein the processor receives a PHY protocol data unit (PPDU) through the communication unit, determines whether the PPDU contains an intra-BSS frame or contains an inter-BSS frame based on preamble information of the PPDU, and performs either a first operation or a second operation distinct from each other according to a determination result and a wireless communication method using the same.

IPC Classes  ?

• H04W 74/08 - Non-scheduled access, e.g. random access, ALOHA or CSMA [Carrier Sense Multiple Access]
• H04W 40/00 - Communication routing or communication path finding
• H04W 72/0446 - Resources in time domain, e.g. slots or frames
• H04W 84/12 - WLAN [Wireless Local Area Networks]
• H04W 88/08 - Access point devices

Abstract

The present invention relates to a wireless communication method for power saving and a wireless communication terminal using the same, and more particularly, to a wireless communication method for efficiently conducting data transmission/reception of each terminal 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 receiving a distributed access group parameter for data transmission/reception by a group unit, wherein the distributed access group parameter comprises information about a number of groups assigned to a corresponding BSS, obtaining group information about the terminal based on the distributed access group parameter, and performing data transmission based on the obtained group information, and a wireless communication terminal using the same.

IPC Classes  ?

• H04W 52/02 - Power saving arrangements
• H04W 72/0446 - Resources in time domain, e.g. slots or frames
• H04W 84/12 - WLAN [Wireless Local Area Networks]

Abstract

The present invention relates to a wireless communication method for simultaneous transmit and receive of data and a wireless communication terminal using the same, and more particularly, to a wireless communication method and an apparatus thereof which can efficiently perform simultaneous data transmission and reception even in an overlapped BSS environment. The present invention relates to a wireless communication method for simultaneous transmit and receive of data and a wireless communication terminal using the same, and more particularly, to a wireless communication method and an apparatus thereof which can efficiently perform simultaneous data transmission and reception even in an overlapped BSS environment. To this end, provided are a wireless communication method of a terminal, including: performing a backoff procedure for transmitting data; transmitting a first RTS frame when a backoff counter of the backoff procedure is expired; setting a transmission timer for waiting for transmitting the data when a second RTS frame is received in response to the transmitted first RTS frame; and waiting for transmitting the data based on the set transmission timer and a wireless communication terminal using the same.

IPC Classes  ?

• H04W 72/30 - Resource management for broadcast services
• H04L 47/2416 - Real-time traffic
• H04L 47/2425 - Traffic characterised by specific attributes, e.g. priority or QoS for supporting services specification, e.g. SLA
• H04W 72/02 - Selection of wireless resources by user or terminal
• H04W 72/04 - Wireless resource allocation
• H04W 72/52 - Allocation or scheduling criteria for wireless resources based on load
• H04W 74/08 - Non-scheduled access, e.g. random access, ALOHA or CSMA [Carrier Sense Multiple Access]

Abstract

Provided is a wireless communication terminal that communicates wirelessly. The wireless communication terminal includes a transceiver and a processor for processing a radio signal received through the transceiver or a radio signal to be transmitted through the transceiver. The processor accesses a channel according to according to a priority of data to be transmitted to the base communication terminal by the wireless communication terminal.

IPC Classes  ?

• H04W 80/02 - Data link layer protocols
• H04W 74/00 - Wireless channel access, e.g. scheduled or random access
• H04W 84/12 - WLAN [Wireless Local Area Networks]
• H04W 74/08 - Non-scheduled access, e.g. random access, ALOHA or CSMA [Carrier Sense Multiple Access]
• H04L 5/00 - Arrangements affording multiple use of the transmission path
• H04W 28/02 - Traffic management, e.g. flow control or congestion control
• H04W 40/24 - Connectivity information management, e.g. connectivity discovery or connectivity update
• H04W 72/0446 - Resources in time domain, e.g. slots or frames

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.

IPC Classes  ?

• H04W 28/02 - Traffic management, e.g. flow control or congestion control
• H04L 5/00 - Arrangements affording multiple use of the transmission path
• H04L 27/26 - Systems using multi-frequency codes
• H04W 72/21 - Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
• H04W 72/23 - Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
• H04W 74/00 - Wireless channel access, e.g. scheduled or random access

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.

IPC Classes  ?

• H04W 72/121 - Wireless traffic scheduling for groups of terminals or users
• H04W 84/12 - WLAN [Wireless Local Area Networks]
• H04W 74/04 - Scheduled access
• H04L 5/00 - Arrangements affording multiple use of the transmission path
• H04L 1/1867 - Arrangements specially adapted for the transmitter end
• H04L 1/00 - Arrangements for detecting or preventing errors in the information received
• H04W 72/21 - Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
• H04W 76/18 - Management of setup rejection or failure
• H04W 56/00 - Synchronisation arrangements
• H04W 72/0446 - Resources in time domain, e.g. slots or frames
• H04W 72/1268 - Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows

Abstract

Disclosed is a wireless communication terminal. The wireless communication terminal includes a transceiver transmitting/receiving a wireless signal; and a processor controlling an operation of the wireless communication terminal. The transceiver receives a first frame including information on a manner for accessing, by a plurality of wireless communication terminals including the wireless communication terminal, a base wireless communication terminal. The processor acquires a manner for accessing the base wireless communication terminal on a basis of the first frame. The transceiver accesses the base communication terminal on a basis of the manner for accessing the base wireless communication terminal. The base wireless communication terminal is any one communication terminal different from the plurality of wireless communication terminals.

IPC Classes  ?

• H04J 13/00 - Code division multiplex systems
• H04W 84/12 - WLAN [Wireless Local Area Networks]
• H04W 74/00 - Wireless channel access, e.g. scheduled or random access
• H04B 1/707 - Spread spectrum techniques using direct sequence modulation
• H04W 74/08 - Non-scheduled access, e.g. random access, ALOHA or CSMA [Carrier Sense Multiple Access]

Abstract

The present invention relates to a wireless communication terminal and a wireless communication method for efficiently scheduling simultaneous uplink transmissions of a plurality of terminals. The present invention relates to a wireless communication terminal and a wireless communication method for efficiently scheduling simultaneous uplink transmissions of a plurality of terminals. To this end, provided are a wireless communication terminal, the terminal including: a transceiver; and a processor, wherein the processor receives, through the transceiver, a trigger frame transmitted by a base wireless communication terminal, and performs a multi-user uplink transmission based on the received trigger frame, wherein the trigger frame includes a predetermined field indicating whether an additional trigger frame is present or not, and a wireless communication method using the same.

IPC Classes  ?

• H04W 74/08 - Non-scheduled access, e.g. random access, ALOHA or CSMA [Carrier Sense Multiple Access]
• H04W 84/12 - WLAN [Wireless Local Area Networks]
• H04W 52/02 - Power saving arrangements
• H04W 28/02 - Traffic management, e.g. flow control or congestion control
• H04W 72/04 - Wireless resource allocation

Abstract

The present invention relates to a wireless communication terminal and wireless communication method for clear channel assessment, and more particularly, to a wireless communication terminal and a wireless communication method for performing an efficient clear channel assessment for spatial reuse of a communication system. The present invention relates to a wireless communication terminal and wireless communication method for clear channel assessment, and more particularly, to a wireless communication terminal and a wireless communication method for performing an efficient clear channel assessment for spatial reuse of a communication system. For this, provided are a wireless communication terminal comprising: a transceiver configured to transmit and receive a wireless signal; and a processor configured to control an operation of the terminal, wherein the processor is configured to: perform a backoff procedure of a channel for data transmission, suspend the backoff procedure when a wireless signal having a signal strength higher than a predetermined first clear channel assessment (CCA) threshold is received through the channel, identify whether the received wireless signal is a wireless signal of the same basic service set (BSS) as the terminal, and determine whether to resume the backoff procedure based on a CCA threshold determined according to the identification result and a wireless communication method using the same.

IPC Classes  ?

• H04W 74/08 - Non-scheduled access, e.g. random access, ALOHA or CSMA [Carrier Sense Multiple Access]
• H04W 84/12 - WLAN [Wireless Local Area Networks]
• H04W 72/54 - Allocation or scheduling criteria for wireless resources based on quality criteria

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.

IPC Classes  ?

• H04W 74/08 - Non-scheduled access, e.g. random access, ALOHA or CSMA [Carrier Sense Multiple Access]
• H04W 72/0453 - Resources in frequency domain, e.g. a carrier in FDMA

Abstract

Provided are a wireless communication terminal including: a processor; and a communication unit, wherein the processor obtains a backoff counter for an OFDMA-based random access of the terminal, wherein the backoff counter is obtained within a range of a contention window for the uplink OFDMA-based random access, receives a trigger frame indicating an uplink multi-user transmission, when one or more resource unit(s) in which random access can be performed is indicated by the trigger frame, decrements the backoff counter based on a number of resource units(s) in which random access can be performed, and when the backoff counter is 0 or decremented to 0, performs an uplink multi-user transmission through a selected resource unit among the resource units(s) and a wireless communication method using the same.

IPC Classes  ?

• H04W 74/08 - Non-scheduled access, e.g. random access, ALOHA or CSMA [Carrier Sense Multiple Access]
• H04W 72/02 - Selection of wireless resources by user or terminal

Abstract

The present disclosure relates to an edge service supporting server and a method for operating an edge service supporting server, wherein an infrastructure of cloud computing technology is forwardly disposed at a station of a communication operator network, thereby implementing an ultra-low latency edge computing service.

IPC Classes  ?

• H04L 67/1021 - Server selection for load balancing based on client or server locations
• H04L 67/52 - Network services specially adapted for the location of the user terminal
• H04L 67/51 - Discovery or management thereof, e.g. service location protocol [SLP] or web services

Abstract

Provided is a wireless communication terminal. The wireless communication terminal includes: a transceiver configured for transmitting/receiving a wireless signal; and a processor configured for controlling an operation of the wireless communication terminal. The transceiver receives a first frame indicating that there is data to be transmitted from a base wireless communication terminal to a plurality of wireless communication terminals including the wireless communication terminal and receives data based on the first frame. The base wireless communication terminal is any one wireless communication terminal different from the plurality of wireless communication terminals.

IPC Classes  ?

• H04W 52/02 - Power saving arrangements

Abstract

The disclosure proposes an apparatus and a method capable of minimizing the size of DCI and transmitting the DCI containing as much information as through a scheme of converting some information (the bit value to be converted) of the DCI into location information (scheduling location) of the PDCCH to transmit the same.

IPC Classes  ?

• H04W 72/232 - Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the physical layer, e.g. DCI signalling

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.

IPC Classes  ?

• H04W 74/08 - Non-scheduled access, e.g. random access, ALOHA or CSMA [Carrier Sense Multiple Access]
• H04L 1/16 - Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
• H04W 74/00 - Wireless channel access, e.g. scheduled or random access
• H04W 72/21 - Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network

Abstract

The present invention relates to a wireless communication terminal and a wireless communication method for efficiently scheduling multi-user uplink transmission. 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.

IPC Classes  ?

• H04L 1/00 - Arrangements for detecting or preventing errors in the information received
• H04L 27/00 - Modulated-carrier systems
• H04L 27/26 - Systems using multi-frequency codes
• H04L 5/00 - Arrangements affording multiple use of the transmission path
• H04W 72/1268 - Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
• H04L 1/18 - Automatic repetition systems, e.g. Van Duuren systems
• H04W 28/26 - Resource reservation
• H04W 72/12 - Wireless traffic scheduling
• H04W 74/00 - Wireless channel access, e.g. scheduled or random access
• H04W 74/08 - Non-scheduled access, e.g. random access, ALOHA or CSMA [Carrier Sense Multiple Access]

Abstract

Provided are method and devices which apply an optimal DMRS configuration for each slot unit to which a DMRS is allocated, and guarantee both resources for data transmission of a PDSCH/PUSCH and stability of transmission or reception based on the accuracy of channel estimation in balance, thereby increasing transmission quality and throughput.

IPC Classes  ?

• H04W 72/02 - Selection of wireless resources by user or terminal
• H04W 72/0446 - Resources in time domain, e.g. slots or frames
• H04L 5/00 - Arrangements affording multiple use of the transmission path
• H04W 24/08 - Testing using real traffic

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.

IPC Classes  ?

• H04L 5/00 - Arrangements affording multiple use of the transmission path
• H04W 84/12 - WLAN [Wireless Local Area Networks]
• H04W 74/08 - Non-scheduled access, e.g. random access, ALOHA or CSMA [Carrier Sense Multiple Access]
• H04W 74/00 - Wireless channel access, e.g. scheduled or random access

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.

IPC Classes  ?

• H04L 1/1607 - Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals - Details of the supervisory signal
• H04W 84/12 - WLAN [Wireless Local Area Networks]
• H04L 5/00 - Arrangements affording multiple use of the transmission path
• H04L 1/00 - Arrangements for detecting or preventing errors in the information received
• H04L 1/1829 - Arrangements specially adapted for the receiver end
• H04L 69/22 - Parsing or analysis of headers

Abstract

The present disclosure suggests a scheme of uniformly embodying the functions of all equipment (RAN, core) including an RAN in addition to the core of 5G as NFs via realization of a detailed technique that evolves the function of RAN equipment to a 5G architecture and embodies the same as an NF.

IPC Classes  ?

• H04W 60/00 - Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration

Abstract

The present disclosure relates to an edge configuration server, an edge enable server, and an operating methods thereof capable of minimizing signaling required for reconnection of a terminal device in an edge computing (multi-access edge computing: MEC) service environment in which an edge computing service is available through an edge cloud site (MEC site) closest to a network connection location of the terminal device.

IPC Classes  ?

• H04L 67/145 - Termination or inactivation of sessions, e.g. event-controlled end of session avoiding end of session, e.g. keep-alive, heartbeats, resumption message or wake-up for inactive or interrupted session
• H04L 67/51 - Discovery or management thereof, e.g. service location protocol [SLP] or web services
• H04L 67/568 - Storing data temporarily at an intermediate stage, e.g. caching

Abstract

The present disclosure provides a detailed technology that defines/embodies a transfer system (a direct transfer path, an information system, and the like) in which a UPF transfers (provides) information (data) for analysis to an NWDAF.

IPC Classes  ?

• H04L 43/02 - Capturing of monitoring data
• H04L 41/0631 - Management of faults, events, alarms or notifications using analysis of correlation between notifications, alarms or events based on decision criteria, e.g. hierarchy, tree or time analysis
• H04L 67/51 - Discovery or management thereof, e.g. service location protocol [SLP] or web services
• H04L 43/0852 - Delays

Abstract

The present invention relates to a wireless communication method and a wireless communication terminal for a spatial reuse operation of an overlapping basic service set, and more particularly, to a wireless communication method and a wireless communication terminal for supporting a spatial reuse operation of an overlapping basic service set to efficiently use a wireless resource. To this end, provided are a wireless communication terminal including: a processor; and a communication unit, wherein the processor receives a trigger frame indicating an uplink multi-user transmission, and transmits a trigger-based PHY protocol data unit (PPDU) in response to the received trigger frame, wherein the trigger-based PPDU comprises a spatial reuse parameter for spatial reuse operation of an overlapping basic service set (OBSS) terminal and a wireless communication method using the same.

IPC Classes  ?

• H04W 16/02 - Resource partitioning among network components, e.g. reuse partitioning
• H04W 52/14 - Separate analysis of uplink or downlink
• H04W 28/20 - Negotiating bandwidth
• H04W 52/34 - TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading

Abstract

Provided is a wireless communication terminal. The processor is configured to receive, from a base wireless communication terminal through the transceiver, a first frame including first information indicating a duration required for a pending frame exchange sequence and second information indicating a frequency band which is allocated for transmission of a second frame, wherein the pending frame exchange sequence is a transmission sequence between one or more wireless communication terminals, set a network allocation vector (NAV) according to the first information indicating the duration for the pending frame exchange sequence, and reset the NAV when the wireless communication terminal does not receive a PLCP Protocol Data Unit (PPDU) for a reference time from a time point at which the first frame is received.

IPC Classes  ?

• H04W 72/0446 - Resources in time domain, e.g. slots or frames
• H04L 27/26 - Systems using multi-frequency codes
• H04W 84/12 - WLAN [Wireless Local Area Networks]
• H04L 5/00 - Arrangements affording multiple use of the transmission path
• H04W 74/08 - Non-scheduled access, e.g. random access, ALOHA or CSMA [Carrier Sense Multiple Access]
• H04W 72/0453 - Resources in frequency domain, e.g. a carrier in FDMA

Abstract

Provided is a wireless communication terminal that communicates wirelessly. The wireless communication terminal includes: a transceiver; and a processor. The processor receives a first PLCP Protocol Data Unit (PPPU) through the transceiver, and transmits a second PPDU based on Basic Service Set (BSS) information indicated by the first PPDU.

IPC Classes  ?

• H04W 74/08 - Non-scheduled access, e.g. random access, ALOHA or CSMA [Carrier Sense Multiple Access]
• H04W 84/12 - WLAN [Wireless Local Area Networks]
• H04W 52/24 - TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
• H04B 17/318 - Received signal strength

Abstract

The present invention relates to a signaling method of a wireless LAN frame for multi-user transmission, and to a wireless communication terminal, and a wireless communication method using the same. The present invention relates to a signaling method of a wireless LAN frame for multi-user transmission, and to a wireless communication terminal, and a wireless communication method using the same. To this end, provided are a wireless communication terminal, including: a transceiver; and a processor, wherein the processor is configured to: generate a frame including a first signal field and a second signal field, wherein the first signal field includes a bandwidth field indicating total bandwidth information in which the frame is transmitted, and the second signal field includes a resource allocation field indicating arrangement information of resource unit(s) in a frequency band through which the frame is transmitted, and transmit, by the transceiver, the generated frame and a wireless communication method using the same.

IPC Classes  ?

• H04L 5/00 - Arrangements affording multiple use of the transmission path
• H04W 74/08 - Non-scheduled access, e.g. random access, ALOHA or CSMA [Carrier Sense Multiple Access]

Abstract

A method and apparatus for triggering fallback using RRC establishment cause in a communications system is disclosed herein. An aspect of the present disclosure provides a base station of a first wireless communication system for triggering fallback from the first wireless communication system to a second wireless communication system, the base station including: a receiving unit configured to receive an RRC connection request message from user equipment and check whether or not the user equipment requests a call service using the RRC connection request message; and a fallback trigger unit configured to trigger the fallback to the second wireless communication system when the user equipment requests the call service.

IPC Classes  ?

• H04W 36/00 - Handoff or reselecting arrangements
• H04W 76/10 - Connection setup

Abstract

Provided is a wireless communication terminal that wirelessly communicates. the wireless communication terminal includes: a transceiver for transmitting and receiving a wireless signal; and a processor for processing the wireless signal. The processor is configured to perform a transmission based on a transmission opportunity (TXOP) limit which is a maximum value of a TXOP, which is a time interval in which a wireless communication terminal has a right to initiate a frame exchange sequence in a wireless medium.

IPC Classes  ?

• H04W 74/08 - Non-scheduled access, e.g. random access, ALOHA or CSMA [Carrier Sense Multiple Access]
• H04B 7/0417 - Feedback systems
• H04B 7/06 - Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station

Abstract

A wireless communication terminal is disclosed. The wireless communication terminal includes a transceiver transmitting/receiving a wireless signal, and a processor controlling an operation of the wireless communication terminal. The transceiver obtains a signaling field from a physical frame including data to be transmitted from a base wireless communication terminal to each of a plurality of wireless communication terminals including the wireless communication terminal, and receives, from the physical frame based on the signaling field, the data having been transmitted from the base wireless communication terminal to the wireless communication terminal. The signaling field signals information about the plurality of wireless communication terminals. The base wireless communication terminal is any one wireless communication terminal different from the plurality of wireless communication terminals.

IPC Classes  ?

• H04L 27/26 - Systems using multi-frequency codes
• H04L 1/00 - Arrangements for detecting or preventing errors in the information received
• H04L 5/00 - Arrangements affording multiple use of the transmission path
• H04W 72/23 - Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
• H04W 72/0453 - Resources in frequency domain, e.g. a carrier in FDMA

Abstract

The present invention relates to a method for transmitting an aggregate MPDU and a response frame thereto and a wireless communication terminal using the same, and more particularly, to a wireless communication method and a wireless communication terminal for setting various formats of the aggregate MPDU and the response frame thereto and performing an efficient data communication by using the same. To this end, provided are a wireless communication terminal including: a processor; and a communication unit, wherein the processor receives an aggregate MPDU (A-MPDU) consisting of one or more MAC protocol data units (MPDUs), determines a format of a response frame for the received A-MPDU, and transmits a response frame of the determined format, wherein the format of the response frame for the A-MPDU is determined based on at least one of the number of traffic IDs (TIDs) soliciting an immediate response in MPDU(s) successfully received in the A-MPDU and MPDU delimiter information of the A-MPDU and a wireless communication method using the same.

IPC Classes  ?

• H04L 1/00 - Arrangements for detecting or preventing errors in the information received
• H04L 1/1607 - Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals - Details of the supervisory signal
• H04W 72/0446 - Resources in time domain, e.g. slots or frames
• H04W 80/02 - Data link layer protocols
• H04W 72/542 - Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality

Abstract

Provided is a wireless communication terminal that wirelessly communicates with a base wireless communication terminal. The wireless communication terminal includes a transceiver, and a processor. The processor is configured to set an integer selected from a range of 0 to a value equal to or smaller than an OFDMA Contention Window (OCW) as a counter for random access, receive a trigger frame for triggering random access using one or more resource units (RUs) allocated for the random access from the base wireless communication terminal using the transceiver, decrement a value of the counter based on the one or more RUs allocated for the random access, randomly select one RU based on the one or more RUs allocated for the random access when the value of the counter is 0 or reaches 0, and attempt transmission to the base wireless communication terminal using the selected RU.

IPC Classes  ?

• H04W 74/08 - Non-scheduled access, e.g. random access, ALOHA or CSMA [Carrier Sense Multiple Access]
• H04L 5/00 - Arrangements affording multiple use of the transmission path
• H04L 27/26 - Systems using multi-frequency codes
• H04W 72/0446 - Resources in time domain, e.g. slots or frames
• H04L 1/00 - Arrangements for detecting or preventing errors in the information received
• H04L 1/16 - Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
• H04W 28/06 - Optimising, e.g. header compression, information sizing
• H04W 74/00 - Wireless channel access, e.g. scheduled or random access
• H04W 84/12 - WLAN [Wireless Local Area Networks]
• H04W 72/51 - Allocation or scheduling criteria for wireless resources based on terminal or device properties

Abstract

The present disclosure relates to an edge computing router and an operating method of edge computing router for transmitting downlink traffic generated in an edge application to a terminal by controlling a paging procedure for the terminal in an idle state.

IPC Classes  ?

• H04W 52/02 - Power saving arrangements
• H04W 68/02 - Arrangements for increasing efficiency of notification or paging channel

Abstract

The present invention relates to a wireless communication terminal and a wireless communication method for a multi-user EDCA operation, and more particularly, to a wireless communication terminal and a wireless communication method for performing a combination of a legacy EDCA operation and a multi-user EDCA operation. To this end, provided are a wireless communication terminal including: a communication unit; and a processor configured to control transmission and reception of a wireless signal through the communication unit, wherein the processor updates enhanced distributed channel access (EDCA) parameters for channel access, the EDCA parameters being updated based on an EDCA parameter set selected from a first EDCA parameter set and a second EDCA parameter set, and performs channel access based on the updated EDCA parameters and a wireless communication method using the same.

IPC Classes  ?

• H04W 74/08 - Non-scheduled access, e.g. random access, ALOHA or CSMA [Carrier Sense Multiple Access]
• H04W 74/00 - Wireless channel access, e.g. scheduled or random access
• H04B 7/0452 - Multi-user MIMO systems
• H04W 84/12 - WLAN [Wireless Local Area Networks]

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 trigger frame for triggering that a frame for setting a link with a wireless communication terminal, which is an AP, is transmitted through UpLink Multi User (UL MU) transmission through the transmission/reception unit. The processor transmits the frame for setting the link through UL MU transmission based on the trigger frame.

IPC Classes  ?

• H04W 28/06 - Optimising, e.g. header compression, information sizing
• H04W 28/14 - Flow control using intermediate storage
• H04W 28/02 - Traffic management, e.g. flow control or congestion control
• H04W 76/11 - Allocation or use of connection identifiers
• H04W 74/00 - Wireless channel access, e.g. scheduled or random access

Abstract

The present invention relates to a wireless communication terminal and a wireless communication method for efficiently managing simultaneous data transmissions of a plurality of terminals. The present invention relates to a wireless communication terminal and a wireless communication method for efficiently managing simultaneous data transmissions of a plurality of terminals. To this end, provided are a base wireless communication terminal including: a transceiver configured to transmit and receive a wireless signal; and a processor configured to control an operation of the base wireless communication terminal, wherein the processor is configured to: transmit a trigger frame triggering a multi-user uplink transmission of a plurality of terminals, receive multi-user uplink data through resources allocated to the plurality of terminals, and transmit a block ACK through the resources in response to the received multi-user uplink data, wherein the transmission of the block ACK in each resource is terminated at the same time, and a wireless communication method using the same.

IPC Classes  ?

• H04L 1/1607 - Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals - Details of the supervisory signal
• H04W 72/21 - Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
• H04W 72/542 - Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
• H04W 72/121 - Wireless traffic scheduling for groups of terminals or users

Abstract

A wireless communication terminal for wireless communication is disclosed. The wireless communication terminal includes: a transceiver; and a processor. The processor is configured to transmit a non-legacy physical layer frame including a legacy signaling field including information decodable by a legacy wireless communication terminal by using the transceiver.

IPC Classes  ?

• H04L 1/00 - Arrangements for detecting or preventing errors in the information received
• H04L 27/18 - Phase-modulated carrier systems, i.e. using phase-shift keying
• H04L 27/26 - Systems using multi-frequency codes
• H04L 5/00 - Arrangements affording multiple use of the transmission path
• H04L 69/323 - Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the physical layer [OSI layer 1]
• H04L 69/18 - Multiprotocol handlers, e.g. single devices capable of handling multiple protocols

Abstract

The present invention relates to a wireless communication method and a wireless communication terminal for signaling a multi-user packet. More specifically, provided are a wireless communication terminal including a communication unit; and a processor configured to process signals transmitted and received through the communication unit, wherein the processor receives, through the communication unit, a high efficiency multi-user PHY protocol data unit (HE MU PPDU), wherein a preamble of the HE MU PPDU includes high efficiency signal A field (HE-SIG-A) and high efficiency signal B field (HE-SIG-B), and decodes the received HE MU PPDU based on information obtained from the HE-SIG-A, wherein a configuration of the HE-SIG-B is identified based on information obtained from at least one subfield of the HE-SIG-A and a wireless communication method using the same.

IPC Classes  ?

• H04B 7/0452 - Multi-user MIMO systems
• H04L 27/26 - Systems using multi-frequency codes
• H04L 5/00 - Arrangements affording multiple use of the transmission path
• H04B 7/02 - Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas

Abstract

The present disclosure in some embodiments provides a packet loss recovery apparatus and a packet loss recovery method for use in an Internet Protocol Television (IPTV) multicast service, which utilizes additional information received from an IPTV UE for causing a cache server to detect and transmit a lost packet to the IPTV UE to recover the packet loss.

IPC Classes  ?

• H04N 21/643 - Communication protocols
• H04N 21/43 - Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronizing decoder's clock; Client middleware
• H04N 21/6408 - Unicasting

Abstract

Provided is a wireless communication terminal. The wireless communication terminal includes a transceiver and a processor. The processer performs a contention procedure based on a back-off counter, in each of a plurality of channel and accesses, by using the transceiver, at least one of the plurality of channels based on the contention procedure.

IPC Classes  ?

• H04W 74/08 - Non-scheduled access, e.g. random access, ALOHA or CSMA [Carrier Sense Multiple Access]
• H04W 84/12 - WLAN [Wireless Local Area Networks]
• H04W 72/0446 - Resources in time domain, e.g. slots or frames

Abstract

The present invention relates to a method for constructing an aggregated frame for efficient wireless communication in a high-density environment and a wireless communication method using the same. The present invention relates to a method for constructing an aggregated frame for efficient wireless communication in a high-density environment and a wireless communication method using the same. For this, the present invention provides a wireless communication method including: generating an aggregated MPDU (A-MPDU) including a plurality of MAC protocol data unit (MPDU) groups to which independent modulation and coding schemes (MCSs) are applied, respectively; and transmitting the generated A-MPDU through the transceiver and a wireless communication terminal using the same.

IPC Classes  ?

• H04W 28/06 - Optimising, e.g. header compression, information sizing
• H04W 84/12 - WLAN [Wireless Local Area Networks]
• H04L 1/00 - Arrangements for detecting or preventing errors in the information received
• H04L 1/1867 - Arrangements specially adapted for the transmitter end
• H04L 1/1607 - Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals - Details of the supervisory signal

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 frame through the transceiver, determine whether the frame is classified into an Intra-Basic Service Set (BSS) frame or an Inter-BSS frame according to a BSS from which the frame is transmitted, and access a channel according to whether the frame is an Intra-BSS frame or an Inter-BSS frame.

IPC Classes  ?

• H04W 48/08 - Access restriction or access information delivery, e.g. discovery data delivery
• H04W 74/00 - Wireless channel access, e.g. scheduled or random access
• H04L 12/46 - Interconnection of networks
• H04W 48/16 - Discovering; Processing access restriction or access information
• H04W 88/08 - Access point devices

Abstract

The present invention proposes a scheme for realizing a structure and a technology which can support direct linkage between services in an inter-MEC environment, the services being mounted in different MEC systems, respectively.

IPC Classes  ?

• H04L 41/02 - Standardisation; Integration
• H04L 67/51 - Discovery or management thereof, e.g. service location protocol [SLP] or web services

Abstract

Provided is a wireless communication terminal that communicates wirelessly. The terminal includes: a transceiver; and a processor. The processor is configured to transmit first information on a fragmentation level to be used for data to be transmitted to a recipient by using the transceiver in an add Block ACK (ADDBA) setup procedure.

IPC Classes  ?

• H04W 28/04 - Error control
• H04W 28/06 - Optimising, e.g. header compression, information sizing
• H04L 1/1607 - Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals - Details of the supervisory signal
• H04L 1/1867 - Arrangements specially adapted for the transmitter end
• H04W 28/02 - Traffic management, e.g. flow control or congestion control
• H04L 1/1829 - Arrangements specially adapted for the receiver end
• H04W 80/02 - Data link layer protocols

Abstract

A wireless communication terminal is disclosed. 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 transmits a training signal to a base wireless communication terminal based on a sub-frequency band allocated from the base wireless communication terminal, and transmits data to the base wireless communication terminal through the sub-frequency band allocated from the base wireless communication terminal. The training signal is used, by the base wireless communication terminal, for receiving the data from the wireless communication terminal.

IPC Classes  ?

• H04L 5/00 - Arrangements affording multiple use of the transmission path
• H04L 27/26 - Systems using multi-frequency codes
• H04W 72/0446 - Resources in time domain, e.g. slots or frames
• H04W 72/0453 - Resources in frequency domain, e.g. a carrier in FDMA

Abstract

The present disclosure is to implement a technique (scheme) of guaranteeing the mobility of an application server that enables a user equipment (UE) to seamlessly use a data service in real time even when the application server is changed.

IPC Classes  ?

• H04W 8/26 - Network addressing or numbering for mobility support
• H04W 24/08 - Testing using real traffic
• H04L 67/141 - Setup of application sessions

Abstract

Provided is a wireless communication terminal that wirelessly communicates with a base wireless communication terminal. The wireless communication terminal includes: a transceiver; and a processor. The processor is configured to receive trigger information and data from the base wireless communication terminal by using the transceiver, and transmits ACK information indicating whether the data is received to the base wireless communication terminal based on the trigger information. The trigger information is information for triggering transmission of the wireless communication terminal.

IPC Classes  ?

• H04L 5/00 - Arrangements affording multiple use of the transmission path
• H04L 1/1607 - Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals - Details of the supervisory signal
• H04L 65/40 - Support for services or applications
• H04L 69/22 - Parsing or analysis of headers
• H04W 72/04 - Wireless resource allocation
• H04W 74/08 - Non-scheduled access, e.g. random access, ALOHA or CSMA [Carrier Sense Multiple Access]

Abstract

Disclosed are an inter-prediction method and an image decoding apparatus using the same. According to an embodiment of the present invention, there is provided an inter-prediction method including extracting a merge candidate flag and offset information from a bitstream, selecting a merge candidate corresponding to the extracted merge candidate flag from a merge candidate list including neighboring blocks of a current block as merge candidates, deciding a motion vector of the current block by applying the offset information to a motion vector of the selected merge candidate, and generating, as a prediction block of the current block, a block indicated by the motion vector of the current block in a reference picture referenced by the selected merge candidate.

IPC Classes  ?

• H04N 19/105 - Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
• H04N 19/159 - Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
• H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
• H04N 19/52 - Processing of motion vectors by encoding by predictive encoding

Abstract

Provided is a wireless communication terminal including a transceiver for transmitting/receiving a wireless signal and a processor for controlling an operation of the wireless communication terminal. The transceiver receives a first frame indicating information on a resource that a base wireless communication terminal allocates to a plurality of wireless communication terminals from the base wireless communication terminal, and transmits data to the base wireless communication terminal based on the first frame. The plurality of wireless communication terminals include the wireless communication terminal.

IPC Classes  ?

• H04W 72/0446 - Resources in time domain, e.g. slots or frames
• H04W 74/08 - Non-scheduled access, e.g. random access, ALOHA or CSMA [Carrier Sense Multiple Access]
• H04W 84/12 - WLAN [Wireless Local Area Networks]

Abstract

The present disclosure provides an image inpainting method and an image inpainting device. The present disclosure in at least one embodiment provides a method of inpainting an image area obscured by an object included in an image, including selecting one or more frames among input frames of the image, wherein each of the one or more frames is selected as a target frame including an inpainting area obscured by the object or as a reference frame including information on the inpainting area, and performing at least one of inter inpainting or intra inpainting depending on a number of frames selected as the reference frame.

IPC Classes  ?

• G06T 5/00 - Image enhancement or restoration
• G06T 5/50 - Image enhancement or restoration by the use of more than one image, e.g. averaging, subtraction
• G06T 7/246 - Analysis of motion using feature-based methods, e.g. the tracking of corners or segments
• G06V 10/74 - Image or video pattern matching; Proximity measures in feature spaces

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 frame through the transceiver, determine whether the frame is classified into an Intra-Basic Service Set (BSS) frame or an Inter-BSS frame according to a BSS from which the frame is transmitted, and access a channel according to whether the frame is an Intra-BSS frame or an Inter-BSS frame.

IPC Classes  ?

• H04W 72/0453 - Resources in frequency domain, e.g. a carrier in FDMA
• H04W 74/00 - Wireless channel access, e.g. scheduled or random access
• H04W 48/18 - Selecting a network or a communication service

Abstract

A wireless communication terminal communicating wirelessly with a base wireless communication terminal and unassociated with the base wireless communication terminal is disclosed. The wireless communication terminal includes: a transceiver; and a processor configured to receive, by using the transceiver, a multi-station Block ACK frame which indicates whether at least one of MAC frames transmitted from at least one of wireless communication terminals is received by using a first field of the multi-station Block ACK frame for indicating an association identifier corresponding to an association of each of the at least one of wireless communication terminals and the base wireless communication terminal, from the base wireless communication terminal, and determine whether a MAC frame transmitted from the wireless communication terminal is received by the base wireless communication terminal based on whether a second field of the multi-station Block ACK frame includes a MAC address of the wireless communication terminal.

IPC Classes  ?

• H04W 74/08 - Non-scheduled access, e.g. random access, ALOHA or CSMA [Carrier Sense Multiple Access]
• H04L 1/00 - Arrangements for detecting or preventing errors in the information received
• H04L 5/00 - Arrangements affording multiple use of the transmission path
• H04L 1/1607 - Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals - Details of the supervisory signal
• H04W 28/04 - Error control
• H04W 74/00 - Wireless channel access, e.g. scheduled or random access

Abstract

The present disclosure relates to a method and apparatus for improving the encoding efficiency by adaptively changing the resolution of the motion vector in the inter prediction encoding and inter prediction decoding of a video. The apparatus includes: a predicted motion vector calculator for calculating a predicted motion vector of a current block to be encoded using motion vectors of one or more surrounding blocks; and a skip mode encoder for encoding a result of performing a prediction of the current block and information indicating that the current block is a skip block when the predicted motion vector satisfies a skip condition, wherein at least one motion vector among the motion vectors of the surrounding blocks and the motion vector of the current block has a resolution different from resolutions of the other motion vectors.

IPC Classes  ?

• H04N 19/517 - Processing of motion vectors by encoding
• H04N 19/46 - Embedding additional information in the video signal during the compression process
• H04N 19/463 - Embedding additional information in the video signal during the compression process by compressing encoding parameters before transmission
• H04N 19/523 - Motion estimation or motion compensation with sub-pixel accuracy
• H04N 19/91 - Entropy coding, e.g. variable length coding [VLC] or arithmetic coding

Abstract

The present invention discloses method for transmitting downlink packet in function-separated core network. It is an object of the embodiments of the present disclosure to provide a method for transmitting a downlink packet for a UE in an idle mode which is capable of reducing a data transmission latency for a user and efficiently using network resources in a mobile communication system in which the control plane and the user plane of a gateway node are separated.

IPC Classes  ?

• H04L 49/90 - Buffering arrangements
• H04W 40/34 - Modification of an existing route
• H04W 28/14 - Flow control using intermediate storage
• H04W 28/02 - Traffic management, e.g. flow control or congestion control
• H04W 88/16 - Gateway arrangements
• H04W 88/02 - Terminal devices
• H04W 88/08 - Access point devices

Abstract

The present disclosure provides an optimal method of delivering a called party's set video during a voice call connection to the calling party as video Customized Alerting Tones (CAT). More specifically, to generate a video call that delivers the video CAT in the form of early media from a voice call, the disclosure utilizes the early session model suggested by the 3GPP standard to provide a communication protocol for negotiating and establishing a session for the early media. Additionally, the present disclosure provides a method of performing exception handling in a communication protocol for video CAT delivery to ensure calling stability in abnormalities such as errors occurring in the codec negotiation process for video CAT in the network, server failure situations, and user equipment and server malfunctions.

IPC Classes  ?

• H04L 65/1096 - Supplementary features, e.g. call forwarding or call holding
• H04L 69/24 - Negotiation of communication capabilities
• H04L 65/1104 - Session initiation protocol [SIP]
• H04L 65/1069 - Session establishment or de-establishment

Abstract

Disclosed is technology for supporting high-speed and low-latency performance in a 5G environment through implementation of a new reference signal transmission scheme appropriate for the 5G environment, that is, a mobile communication network environment for supporting high-speed and low-latency communication, which will appear afterwards.

IPC Classes  ?

• H04B 7/0408 - Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam diversity
• H04L 5/00 - Arrangements affording multiple use of the transmission path
• H04B 7/0413 - MIMO systems
• H04L 27/26 - Systems using multi-frequency codes

Abstract

There is provided a method of extracting characters from a license plate of a vehicle performed by a license plate character extraction device. The method comprises: converting a input image obtained by capturing the license plate of the vehicle into a grayscale image; generating a converted image based on a result of comparing a value of at least one pixel included in the grayscale image with a first average of values of pixels adjacent to the at least one pixel; generating a refined image based on a result of comparing the converted image with a binarized image obtained by binarizing the converted image; and extracting characters included in the refined image.

IPC Classes  ?

• G06V 20/62 - Text, e.g. of license plates, overlay texts or captions on TV images
• G06V 30/16 - Image preprocessing
• G06V 30/19 - Recognition using electronic means
• G06V 20/70 - Labelling scene content, e.g. deriving syntactic or semantic representations
• G06V 30/148 - Segmentation of character regions
• G06V 30/18 - Extraction of features or characteristics of the image

Abstract

In accordance with an aspect of the present disclosure, there is provided a method of determining a pose of a camera included in a user terminal. The method comprises, based on whether a first pose of the camera is validly predicted in a first query image in which a location of the user terminal is captured by the user terminal, determining a prediction mode for predicting a second pose of the camera in a second query image in which the location is captured by the user terminal after the first query image; and determining the second pose based on the determined prediction mode.

IPC Classes  ?

• G06T 7/73 - Determining position or orientation of objects or cameras using feature-based methods
• G06T 3/60 - Rotation of a whole image or part thereof

Abstract

A coding tool setting method and a video decoding apparatus using the same are disclosed. An embodiment of the present invention relates to a method for setting whether or not to use a coding tool, and provides a coding tool setting method comprising the steps of: decoding, from a bitstream, a profile syntax element indicating a target profile among available profiles and a coding tool syntax element for configurable coding tools, the coding tool syntax element indicating whether or not to apply the coding tool; and setting, on the basis of the coding tool syntax element, target coding tools that are coding tools included in the target profile to be on or off.

IPC Classes  ?

• H04N 19/46 - Embedding additional information in the video signal during the compression process
• H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
• H04N 19/189 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding
• H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards

Abstract

A coding tool setting method and a video decoding apparatus using the same are disclosed. An embodiment of the present invention relates to a method for setting whether or not to use a coding tool, and provides a coding tool setting method comprising the steps of: decoding, from a bitstream, a profile syntax element indicating a target profile among available profiles and a coding tool syntax element for configurable coding tools, the coding tool syntax element indicating whether or not to apply the coding tool; and setting, on the basis of the coding tool syntax element, target coding tools that are coding tools included in the target profile to be on or off.

IPC Classes  ?

• H04N 19/46 - Embedding additional information in the video signal during the compression process
• H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
• H04N 19/189 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding
• H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards

Abstract

A coding tool setting method and a video decoding apparatus using the same are disclosed. An embodiment of the present invention relates to a method for setting whether or not to use a coding tool, and provides a coding tool setting method comprising the steps of: decoding, from a bitstream, a profile syntax element indicating a target profile among available profiles and a coding tool syntax element for configurable coding tools, the coding tool syntax element indicating whether or not to apply the coding tool; and setting, on the basis of the coding tool syntax element, target coding tools that are coding tools included in the target profile to be on or off.

IPC Classes  ?

• H04N 19/46 - Embedding additional information in the video signal during the compression process
• H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
• H04N 19/189 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding
• H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards

Abstract

Disclosed are a BS apparatus, a terminal apparatus, and a QoS control method for implementing the service flow-based QoS control without increasing complexity compared to the conventional bearer-based QoS control method.

IPC Classes  ?

• H04W 28/12 - Flow control using signalling between network elements
• H04W 28/02 - Traffic management, e.g. flow control or congestion control
• H04W 28/18 - Negotiating wireless communication parameters

Abstract

A coding tool setting method and a video decoding apparatus using the same are disclosed. An embodiment of the present invention relates to a method for setting whether or not to use a coding tool, and provides a coding tool setting method comprising the steps of: decoding, from a bitstream, a profile syntax element indicating a target profile among available profiles and a coding tool syntax element for configurable coding tools, the coding tool syntax element indicating whether or not to apply the coding tool; and setting, on the basis of the coding tool syntax element, target coding tools that are coding tools included in the target profile to be on or off.

IPC Classes  ?

• H04N 19/46 - Embedding additional information in the video signal during the compression process
• H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
• H04N 19/189 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding
• H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards

Abstract

Disclosed is a method and apparatus for encoding/decoding a video. According to an embodiment, provided is a method of setting a level for each of one or more regions, including decoding a definition syntax element related to level definition and a designation syntax element related to target designation from a bitstream; defining one or more levels based on the definition syntax element; and setting a target level designated by the designation syntax element among the defined levels for a target region designated by the designation syntax element.

IPC Classes  ?

• H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
• H04N 19/513 - Processing of motion vectors

Abstract

Disclosed herein are a QTBT split structure allowing blocks of various shapes capable of more efficiently reflecting various local characteristics of video and a method of efficiently signaling the split structure.

IPC Classes  ?

• H04N 7/12 - Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal
• H04N 19/96 - Tree coding, e.g. quad-tree coding
• H04N 19/103 - Selection of coding mode or of prediction mode
• H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
• H04N 19/122 - Selection of transform size, e.g. 8x8 or 2x4x8 DCT; Selection of sub-band transforms of varying structure or type
• H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
• H04N 19/12 - Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
• H04N 19/64 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using sub-band based transform, e.g. wavelets characterised by ordering of coefficients or of bits for transmission

Abstract

In training a target model initialized by borrowing the structure and parameters of a pre-trained source model, the present disclosure provides a transfer learning apparatus and method capable of improving the performance of the target model by fine-tuning the target model using sample-based regularization that increases the similarity between features extracted from training samples belonging to the same class.

IPC Classes  ?

• G06N 3/096 - Transfer learning
• G06F 18/213 - Feature extraction, e.g. by transforming the feature space; Summarisation; Mappings, e.g. subspace methods
• G06F 18/22 - Matching criteria, e.g. proximity measures

Abstract

Disclosed herein are a QTBT split structure allowing blocks of various shapes capable of more efficiently reflecting various local characteristics of video and a method of efficiently signaling the split structure.

IPC Classes  ?

• H04N 7/12 - Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal
• H04N 19/103 - Selection of coding mode or of prediction mode
• H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
• H04N 19/12 - Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
• H04N 19/122 - Selection of transform size, e.g. 8x8 or 2x4x8 DCT; Selection of sub-band transforms of varying structure or type
• H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
• H04N 19/64 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using sub-band based transform, e.g. wavelets characterised by ordering of coefficients or of bits for transmission
• H04N 19/96 - Tree coding, e.g. quad-tree coding

Abstract

A method of inter-predicting a current block using any one of a plurality of bi-prediction modes is disclosed. The method comprises decoding, from a bitstream, mode information indicating whether a first mode included in the plurality of bi-prediction modes is applied to the current block. When the mode information indicates that the first mode is applied to the current block, the method further comprises: decoding, from the bitstream, first motion information including differential motion vector information and predicted motion vector information for a first motion vector and second motion information not including at least a portion of predicted motion vector information and differential motion vector information for a second motion vector; and deriving the first motion vector based on the first motion information and deriving the second motion vector based on both at least a portion of the first motion information and the second motion information.

IPC Classes  ?

• H04N 19/137 - Motion inside a coding unit, e.g. average field, frame or block difference
• H04N 19/105 - Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
• H04N 19/159 - Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
• H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
• H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards

Abstract

A method of inter-predicting a current block using any one of a plurality of bi-prediction modes is disclosed. The method comprises decoding, from a bitstream, mode information indicating whether a first mode included in the plurality of bi-prediction modes is applied to the current block. When the mode information indicates that the first mode is applied to the current block, the method further comprises: decoding, from the bitstream, first motion information including differential motion vector information and predicted motion vector information for a first motion vector and second motion information not including at least a portion of predicted motion vector information and differential motion vector information for a second motion vector; and deriving the first motion vector based on the first motion information and deriving the second motion vector based on both at least a portion of the first motion information and the second motion information.

IPC Classes  ?

• H04N 19/137 - Motion inside a coding unit, e.g. average field, frame or block difference
• H04N 19/105 - Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
• H04N 19/159 - Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
• H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
• H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards

Abstract

A method of inter-predicting a current block using any one of a plurality of bi-prediction modes is disclosed. The method comprises decoding, from a bitstream, mode information indicating whether a first mode included in the plurality of bi-prediction modes is applied to the current block. When the mode information indicates that the first mode is applied to the current block, the method further comprises: decoding, from the bitstream, first motion information including differential motion vector information and predicted motion vector information for a first motion vector and second motion information not including at least a portion of predicted motion vector information and differential motion vector information for a second motion vector; and deriving the first motion vector based on the first motion information and deriving the second motion vector based on both at least a portion of the first motion information and the second motion information.

IPC Classes  ?

• H04N 19/137 - Motion inside a coding unit, e.g. average field, frame or block difference
• H04N 19/105 - Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
• H04N 19/159 - Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
• H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
• H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards

Abstract

The present invention relates to a wireless communication method and a wireless communication terminal for wideband link setup, and more particularly, a wireless communication method and a wireless communication terminal for increasing data communication efficiency by extending a data transmission bandwidth of a terminal. To this end, provided are a wireless communication method of a terminal, including: obtaining first primary channel information of a basic service set (BSS) with which the terminal is associated; performing clear channel assessment (CCA) for one or more secondary channels of the BSS; and setting a second primary channel among one or more secondary channels determined to be idle based on a result of the CCA, and a wireless communication terminal using the same.

IPC Classes  ?

• H04W 72/04 - Wireless resource allocation
• H04W 72/0453 - Resources in frequency domain, e.g. a carrier in FDMA
• H04W 74/08 - Non-scheduled access, e.g. random access, ALOHA or CSMA [Carrier Sense Multiple Access]

Abstract

The present disclosure provides a method for code-level super-resolution imaging and a method of training a super-resolution model therefor. According to some embodiments, the present disclosure provides a method of training a super-resolution model based on the encoded codes of an inputted picture and a method for code-level super-resolution imaging by using a pre-trained super-resolution model.

IPC Classes  ?

• G06T 3/40 - Scaling of a whole image or part thereof
• G06T 9/00 - Image coding
• G06T 7/00 - Image analysis

Abstract

A method of inter-predicting a current block using any one of a plurality of bi-prediction modes is disclosed. The method comprises decoding, from a bitstream, mode information indicating whether a first mode included in the plurality of bi-prediction modes is applied to the current block. When the mode information indicates that the first mode is applied to the current block, the method further comprises: decoding, from the bitstream, first motion information including differential motion vector information and predicted motion vector information for a first motion vector and second motion information not including at least a portion of predicted motion vector information and differential motion vector information for a second motion vector; and deriving the first motion vector based on the first motion information and deriving the second motion vector based on both at least a portion of the first motion information and the second motion information.

IPC Classes  ?

• H04N 19/137 - Motion inside a coding unit, e.g. average field, frame or block difference
• H04N 19/105 - Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
• H04N 19/159 - Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
• H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
• H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards

Abstract

The present invention relates to a channel access method for data transmission, and a wireless communication method and a wireless communication terminal using the same, and more particularly, to a wireless communication method and a wireless communication terminal for efficiently scheduling data transmissions of a plurality of terminals. To this end, provided are a wireless communication terminal comprising a processor and a transceiver, wherein the processor receives a trigger frame indicating an uplink multi-user transmission, and transmits an uplink multi-user PLCP protocol data unit (PPDU) in response to the received trigger frame, wherein the trigger frame and a non-legacy preamble of the uplink multi-user PPDU contains remaining transmission opportunity (TXOP) time information of a current TXOP and a wireless communication method using the same.

IPC Classes  ?

• H04L 27/26 - Systems using multi-frequency codes
• H04L 5/00 - Arrangements affording multiple use of the transmission path
• H04W 72/0446 - Resources in time domain, e.g. slots or frames
• H04W 74/00 - Wireless channel access, e.g. scheduled or random access
• H04W 74/08 - Non-scheduled access, e.g. random access, ALOHA or CSMA [Carrier Sense Multiple Access]
• H04W 80/02 - Data link layer protocols
• H04W 80/08 - Upper layer protocols
• H04W 24/08 - Testing using real traffic

Abstract

A filtering method comprises: determining at least one block boundary to which filtering is to be applied in a reconstructed image; setting a boundary strength of the block boundary based on prediction modes of two target luma blocks forming the block boundary among a plurality of prediction modes, a type of the block boundary and preset conditions; calculating an average value of quantization parameters which are respectively applied to the target luma blocks, and deriving a variable by adding the average value to an offset value derived based on offset information to be encoded at a level of a sequence parameter set that is a header which is referenced in common by the pictures belonging to the sequence; and determining whether to perform the filtering on the block boundary and performing the filtering based on the set boundary strength and the variable.

IPC Classes  ?

• H04N 19/117 - Filters, e.g. for pre-processing or post-processing
• H04N 19/105 - Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
• H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
• H04N 19/159 - Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
• H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
• H04N 19/18 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a set of transform coefficients
• H04N 19/86 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving reduction of coding artifacts, e.g. of blockiness

Abstract

A filtering method comprises: determining at least one block boundary to which filtering is to be applied in a reconstructed image; setting a boundary strength of the block boundary based on prediction modes of two target luma blocks forming the block boundary among a plurality of prediction modes, a type of the block boundary and preset conditions; calculating an average value of quantization parameters which are respectively applied to the target luma blocks, and deriving a variable by adding the average value to an offset value derived based on offset information to be encoded at a level of a sequence parameter set that is a header which is referenced in common by the pictures belonging to the sequence; and determining whether to perform the filtering on the block boundary and performing the filtering based on the set boundary strength and the variable.

IPC Classes  ?

• H04N 19/117 - Filters, e.g. for pre-processing or post-processing
• H04N 19/105 - Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
• H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
• H04N 19/159 - Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
• H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
• H04N 19/18 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a set of transform coefficients
• H04N 19/86 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving reduction of coding artifacts, e.g. of blockiness

Abstract

A filtering method comprises: determining at least one block boundary to which filtering is to be applied in a reconstructed image; setting a boundary strength of the block boundary based on prediction modes of two target luma blocks forming the block boundary among a plurality of prediction modes, a type of the block boundary and preset conditions; calculating an average value of quantization parameters which are respectively applied to the target luma blocks, and deriving a variable by adding the average value to an offset value derived based on offset information to be encoded at a level of a sequence parameter set that is a header which is referenced in common by the pictures belonging to the sequence; and determining whether to perform the filtering on the block boundary and performing the filtering based on the set boundary strength and the variable.

IPC Classes  ?

• H04N 19/117 - Filters, e.g. for pre-processing or post-processing
• H04N 19/105 - Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
• H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
• H04N 19/159 - Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
• H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
• H04N 19/18 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a set of transform coefficients
• H04N 19/86 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving reduction of coding artifacts, e.g. of blockiness

Abstract

A filtering method comprises: determining at least one block boundary to which filtering is to be applied in a reconstructed image; setting a boundary strength of the block boundary based on prediction modes of two target luma blocks forming the block boundary among a plurality of prediction modes, a type of the block boundary and preset conditions; calculating an average value of quantization parameters which are respectively applied to the target luma blocks, and deriving a variable by adding the average value to an offset value derived based on offset information to be encoded at a level of a sequence parameter set that is a header which is referenced in common by the pictures belonging to the sequence; and determining whether to perform the filtering on the block boundary and performing the filtering based on the set boundary strength and the variable.

IPC Classes  ?

• H04N 19/117 - Filters, e.g. for pre-processing or post-processing
• H04N 19/105 - Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
• H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
• H04N 19/159 - Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
• H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
• H04N 19/18 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a set of transform coefficients
• H04N 19/86 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving reduction of coding artifacts, e.g. of blockiness

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.

IPC Classes  ?

• H04W 28/02 - Traffic management, e.g. flow control or congestion control
• H04L 5/00 - Arrangements affording multiple use of the transmission path
• H04L 27/26 - Systems using multi-frequency codes
• H04W 72/21 - Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
• H04W 72/23 - Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
• H04W 74/00 - Wireless channel access, e.g. scheduled or random access
• H04W 72/56 - Allocation or scheduling criteria for wireless resources based on priority criteria

Abstract

The present invention relates to a wireless communication method for power saving and a wireless communication terminal using the same, and more particularly, to a wireless communication method for efficiently conducting data transmission/reception of each terminal 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 receiving a distributed access group parameter for data transmission/reception by a group unit, wherein the distributed access group parameter comprises information about a number of groups assigned to a corresponding BSS, obtaining group information about the terminal based on the distributed access group parameter, and performing data transmission based on the obtained group information, and a wireless communication terminal using the same.

IPC Classes  ?

• H04W 52/02 - Power saving arrangements
• H04W 84/12 - WLAN [Wireless Local Area Networks]
• H04W 72/0446 - Resources in time domain, e.g. slots or frames
• H04W 74/00 - Wireless channel access, e.g. scheduled or random access
• H04W 88/02 - Terminal devices

Abstract

Provided is a wireless communication terminal. The processor is configured to receive, from a base wireless communication terminal through the transceiver, a first frame including first information indicating a duration required for a pending frame exchange sequence and second information indicating a frequency band which is allocated for transmission of a second frame, wherein the pending frame exchange sequence is a transmission sequence between one or more wireless communication terminals, set a network allocation vector (NAV) according to the first information indicating the duration for the pending frame exchange sequence, and reset the NAV when the wireless communication terminal does not receive a PLCP Protocol Data Unit (PPDU) for a reference time from a time point at which the first frame is received.

IPC Classes  ?

• H04W 72/04 - Wireless resource allocation
• H04L 27/26 - Systems using multi-frequency codes
• H04W 84/12 - WLAN [Wireless Local Area Networks]
• H04L 5/00 - Arrangements affording multiple use of the transmission path
• H04W 74/08 - Non-scheduled access, e.g. random access, ALOHA or CSMA [Carrier Sense Multiple Access]
• H04W 72/0446 - Resources in time domain, e.g. slots or frames
• H04W 72/0453 - Resources in frequency domain, e.g. a carrier in FDMA

Abstract

The present disclosure provides a method and apparatus for subband-coding a frequency conversion unit and a video encoding/decoding method a video encoding/decoding apparatus using the same. The method and the apparatus for subband-coding the frequency conversion unit include generating an encoding stream by splitting the frequency conversion unit into one or more frequency domains, generating frequency domain encoding information according to whether there is a non-zero frequency coefficient in each frequency domain, scanning the frequency coefficient of each frequency domain to generate a frequency domain frequency coefficient stream, and binarizing and encoding the frequency domain encoding information and the scanned frequency domain frequency coefficient stream.

IPC Classes  ?

• H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
• H04N 19/625 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using discrete cosine transform [DCT]
• H04N 19/129 - Scanning of coding units, e.g. zig-zag scan of transform coefficients or flexible macroblock ordering [FMO]
• H04N 19/182 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a pixel
• H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
• H04N 19/124 - Quantisation
• H04N 19/63 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using sub-band based transform, e.g. wavelets
• H04N 19/436 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals - characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation using parallelised computational arrangements
• H04N 19/91 - Entropy coding, e.g. variable length coding [VLC] or arithmetic coding

Abstract

Disclosed herein is video encoding or decoding for efficiently encoding video. The techniques of the present disclosure are related to various split shapes of a block, syntaxes representing various split types of blocks, and syntax elements represented at a high level therefor.

IPC Classes  ?

• H04N 11/02 - Colour television systems with bandwidth reduction
• H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
• H04N 19/136 - Incoming video signal characteristics or properties
• H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
• H04N 19/96 - Tree coding, e.g. quad-tree coding

Abstract

Disclosed is a method and apparatus for encoding/decoding a video. According to an embodiment, provided is a method of setting a level for each of one or more regions, including decoding a definition syntax element related to level definition and a designation syntax element related to target designation from a bitstream; defining one or more levels based on the definition syntax element; and setting a target level designated by the designation syntax element among the defined levels for a target region designated by the designation syntax element.

IPC Classes  ?

• H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
• H04N 19/513 - Processing of motion vectors

Abstract

The present invention relates to a wireless communication method for suggesting a packet preamble structure for efficient communication in a wireless communication environment in which a legacy terminal and a non-legacy terminal are mixed, and a wireless communication terminal using the same. For this, the present invention provides a wireless communication method including: generating a packet including a first preamble and a second preamble, wherein a first symbol and a second symbol of the second preamble are modulated using binary phase shift keying (BPSK); and transmitting the generated packet and a wireless communication terminal using the same.

IPC Classes  ?

• H04L 5/00 - Arrangements affording multiple use of the transmission path
• H04L 27/18 - Phase-modulated carrier systems, i.e. using phase-shift keying
• H04L 27/26 - Systems using multi-frequency codes

Abstract

Disclosed is a wireless communication terminal. The wireless communication terminal includes a transceiver transmitting/receiving a wireless signal; and a processor controlling an operation of the wireless communication terminal. The transceiver receives a first frame including information on a manner for accessing, by a plurality of wireless communication terminals including the wireless communication terminal, a base wireless communication terminal. The processor acquires a manner for accessing the base wireless communication terminal on a basis of the first frame. The transceiver accesses the base communication terminal on a basis of the manner for accessing the base wireless communication terminal. The base wireless communication terminal is any one communication terminal different from the plurality of wireless communication terminals.

IPC Classes  ?

• H04B 1/707 - Spread spectrum techniques using direct sequence modulation
• H04J 13/00 - Code division multiplex systems
• H04W 74/00 - Wireless channel access, e.g. scheduled or random access
• H04W 74/08 - Non-scheduled access, e.g. random access, ALOHA or CSMA [Carrier Sense Multiple Access]
• H04W 84/12 - WLAN [Wireless Local Area Networks]
• H04W 72/27 - Control channels or signalling for resource management between access points

Abstract

Disclosed is a method and apparatus for encoding/decoding a video. According to an embodiment, provided is a method of setting a level for each of one or more regions, including decoding a definition syntax element related to level definition and a designation syntax element related to target designation from a bitstream; defining one or more levels based on the definition syntax element; and setting a target level designated by the designation syntax element among the defined levels for a target region designated by the designation syntax element.

IPC Classes  ?

• H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
• H04N 19/513 - Processing of motion vectors

Abstract

Disclosed is a method and apparatus for encoding/decoding a video. According to an embodiment, provided is a method of setting a level for each of one or more regions, including decoding a definition syntax element related to level definition and a designation syntax element related to target designation from a bitstream; defining one or more levels based on the definition syntax element; and setting a target level designated by the designation syntax element among the defined levels for a target region designated by the designation syntax element.

IPC Classes  ?

• H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
• H04N 19/513 - Processing of motion vectors

Abstract

Provided is a wireless communication terminal that communicates wirelessly. The wireless communication terminal includes a transceiver and a processor for processing a radio signal received through the transceiver or a radio signal to be transmitted through the transceiver. The processor accesses a channel according to according to a priority of data to be transmitted to the base communication terminal by the wireless communication terminal.

IPC Classes  ?

• H04W 80/02 - Data link layer protocols
• H04W 74/00 - Wireless channel access, e.g. scheduled or random access
• H04W 84/12 - WLAN [Wireless Local Area Networks]
• H04W 74/08 - Non-scheduled access, e.g. random access, ALOHA or CSMA [Carrier Sense Multiple Access]
• H04L 5/00 - Arrangements affording multiple use of the transmission path
• H04W 28/02 - Traffic management, e.g. flow control or congestion control
• H04W 40/24 - Connectivity information management, e.g. connectivity discovery or connectivity update
• H04W 72/0446 - Resources in time domain, e.g. slots or frames

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.

IPC Classes  ?

• H04W 74/08 - Non-scheduled access, e.g. random access, ALOHA or CSMA [Carrier Sense Multiple Access]
• H04W 72/0453 - Resources in frequency domain, e.g. a carrier in FDMA

Abstract

Disclosed herein is a video decoding method for decoding an input bitstream in which each of pictures has been encoded with being split into a plurality of tiles. The method includes decoding partial decoding information included in the input bitstream and determining one or more target tiles to be decoded among the plurality of tiles according to the partial decoding information; and decoding video data corresponding to the one or more target tiles, wherein the partial decoding information includes at least one of first information indicating whether to perform partial decoding and second information indicating an area on which partial decoding is to be performed.

IPC Classes  ?

• H04N 19/167 - Position within a video image, e.g. region of interest [ROI]
• H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
• H04N 19/463 - Embedding additional information in the video signal during the compression process by compressing encoding parameters before transmission
• H04N 19/597 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding specially adapted for multi-view video sequence encoding
• H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
• H04N 19/174 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a slice, e.g. a line of blocks or a group of blocks

Abstract

The present disclosure provides a method and apparatus for subband-coding a frequency conversion unit and a video encoding/decoding method a video encoding/decoding apparatus using the same. The method and the apparatus for subband-coding the frequency conversion unit include generating an encoding stream by splitting the frequency conversion unit into one or more frequency domains, generating frequency domain encoding information according to whether there is a non-zero frequency coefficient in each frequency domain, scanning the frequency coefficient of each frequency domain to generate a frequency domain frequency coefficient stream, and binarizing and encoding the frequency domain encoding information and the scanned frequency domain frequency coefficient stream.

IPC Classes  ?

• H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
• H04N 19/436 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals - characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation using parallelised computational arrangements
• H04N 19/625 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using discrete cosine transform [DCT]
• H04N 19/129 - Scanning of coding units, e.g. zig-zag scan of transform coefficients or flexible macroblock ordering [FMO]
• H04N 19/91 - Entropy coding, e.g. variable length coding [VLC] or arithmetic coding
• H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
• H04N 19/63 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using sub-band based transform, e.g. wavelets
• H04N 19/124 - Quantisation
• H04N 19/182 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a pixel

Abstract

The present disclosure provides a method and apparatus for subband-coding a frequency conversion unit and a video encoding/decoding method a video encoding/decoding apparatus using the same. The method and the apparatus for subband-coding the frequency conversion unit include generating an encoding stream by splitting the frequency conversion unit into one or more frequency domains, generating frequency domain encoding information according to whether there is a non-zero frequency coefficient in each frequency domain, scanning the frequency coefficient of each frequency domain to generate a frequency domain frequency coefficient stream, and binarizing and encoding the frequency domain encoding information and the scanned frequency domain frequency coefficient stream.

IPC Classes  ?

• H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
• H04N 19/436 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals - characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation using parallelised computational arrangements
• H04N 19/625 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using discrete cosine transform [DCT]
• H04N 19/129 - Scanning of coding units, e.g. zig-zag scan of transform coefficients or flexible macroblock ordering [FMO]
• H04N 19/91 - Entropy coding, e.g. variable length coding [VLC] or arithmetic coding
• H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
• H04N 19/63 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using sub-band based transform, e.g. wavelets
• H04N 19/124 - Quantisation
• H04N 19/182 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a pixel

Abstract

Disclosed herein is a video decoding method for decoding an input bitstream in which each of pictures has been encoded with being split into a plurality of tiles. The method includes decoding partial decoding information included in the input bitstream and determining one or more target tiles to be decoded among the plurality of tiles according to the partial decoding information; and decoding video data corresponding to the one or more target tiles, wherein the partial decoding information includes at least one of first information indicating whether to perform partial decoding and second information indicating an area on which partial decoding is to be performed.

IPC Classes  ?

• H04N 19/167 - Position within a video image, e.g. region of interest [ROI]
• H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
• H04N 19/463 - Embedding additional information in the video signal during the compression process by compressing encoding parameters before transmission
• H04N 19/597 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding specially adapted for multi-view video sequence encoding
• H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
• H04N 19/174 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a slice, e.g. a line of blocks or a group of blocks

Abstract

Disclosed herein is a video decoding method for decoding an input bitstream in which each of pictures has been encoded with being split into a plurality of tiles. The method includes decoding partial decoding information included in the input bitstream and determining one or more target tiles to be decoded among the plurality of tiles according to the partial decoding information; and decoding video data corresponding to the one or more target tiles, wherein the partial decoding information includes at least one of first information indicating whether to perform partial decoding and second information indicating an area on which partial decoding is to be performed.

IPC Classes  ?

• H04N 19/167 - Position within a video image, e.g. region of interest [ROI]
• H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
• H04N 19/463 - Embedding additional information in the video signal during the compression process by compressing encoding parameters before transmission
• H04N 19/597 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding specially adapted for multi-view video sequence encoding
• H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
• H04N 19/174 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a slice, e.g. a line of blocks or a group of blocks

Abstract

The present invention relates a wireless communication method and a wireless communication terminal for supporting a spatial reuse operation of an overlapping basic service set to efficiently use a wireless resource. To this end, provided are a base wireless communication terminal including: a processor; and a communication unit, wherein the processor receives a PHY protocol data unit (PPDU) through the communication unit, determines whether the PPDU contains an intra-BSS frame or contains an inter-BSS frame based on preamble information of the PPDU, and performs either a first operation or a second operation distinct from each other according to a determination result and a wireless communication method using the same.

IPC Classes  ?

• H04W 74/08 - Non-scheduled access, e.g. random access, ALOHA or CSMA [Carrier Sense Multiple Access]
• H04W 40/00 - Communication routing or communication path finding
• H04W 84/12 - WLAN [Wireless Local Area Networks]
• H04W 88/08 - Access point devices
• H04W 80/02 - Data link layer protocols
• H04W 72/0446 - Resources in time domain, e.g. slots or frames

Abstract

Disclosed herein is a video decoding method for decoding an input bitstream in which each of pictures has been encoded with being split into a plurality of tiles. The method includes decoding partial decoding information included in the input bitstream and determining one or more target tiles to be decoded among the plurality of tiles according to the partial decoding information; and decoding video data corresponding to the one or more target tiles, wherein the partial decoding information includes at least one of first information indicating whether to perform partial decoding and second information indicating an area on which partial decoding is to be performed.

IPC Classes  ?

• H04N 19/167 - Position within a video image, e.g. region of interest [ROI]
• H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
• H04N 19/463 - Embedding additional information in the video signal during the compression process by compressing encoding parameters before transmission
• H04N 19/597 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding specially adapted for multi-view video sequence encoding
• H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
• H04N 19/174 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a slice, e.g. a line of blocks or a group of blocks

Abstract

Disclosed herein is video encoding or decoding for efficiently encoding video. The techniques of the present disclosure are related to various split shapes of a block, syntaxes representing various split types of blocks, and syntax elements represented at a high level therefor.

IPC Classes  ?

• H04N 11/02 - Colour television systems with bandwidth reduction
• H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
• H04N 19/136 - Incoming video signal characteristics or properties
• H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
• H04N 19/96 - Tree coding, e.g. quad-tree coding