Abstract: Disclosed are a method and an apparatus for power saving mode operation in a wireless LAN. A method, for operating a power saving mode in a wireless LAN, can comprises the steps of: an AP transmitting, on the basis of a virtual bitmap of a TIM element comprised in a beacon frame, a PS-poll request frame to a plurality of target STAs that have received the indication of the existence of pended downlink data; the AP receiving, on overlapped time resources, each of a plurality of PS-poll frames from each of a plurality of PS-poll transmission STAs that are indicated on the basis of the PS-poll request frame among the plurality of target STAs; and the AP, on the overlapped time resources, transmitting each of a plurality of downlink frames to each of the plurality of PS-poll transmission STAs as a response to each of the plurality of PS-poll frames.

Abstract: A method for a device to device (D2D) communication-supporting user equipment detecting a synchronization signal, according to one embodiment of the present invention, comprises the steps of: on the basis of a first index set having a plurality of root indexes on a Zadoff-Chu sequence, detecting a first synchronization signal transmitted by a network; and, on the basis of a second index set having a plurality of root indexes that are different from the first index set, detecting a second synchronization signal transmitted by a D2D synchronization source, wherein the total number of the root indexes of the second index set is configured to be the total number of the root indexes of the first index set ?1.

Abstract: The present invention relates to a wireless access system supporting machine-type communication (MTC), and more specifically, to methods for controlling uplink transmission power by an MTC terminal and apparatuses supporting same.

Abstract: A method and apparatus for indicating a logged multimedia broadcast multicast service (MBMS) measurement availability in a wireless communication system is provided. A user equipment (UE) determines whether to inform a serving cell that the UE has logged MBMS measurement results to be reported based on a first condition and a second condition, and when both the first condition and the second condition are met, the UE informs the serving cell that the UE has the logged MBMS measurement results. The first condition corresponds to that the UE has the logged MBMS measurement results to be reported. The second condition includes at least one MBMS minimization of drive tests (MDT) related condition.

Abstract: Provided is a method for access control performed by a terminal in a wireless communication system and an apparatus using the method. The method comprises: acquiring service specific access control information (SSACI) on an application; determining whether prioritization access control information (PACI) can be applied to the application; and when the PACI is determined to be applicable, performing an access control for the application by preferentially applying the PACI than the SSACI.

Abstract: The present invention relates to a wireless access system supporting a millimeter wave (mmWave), and provides methods for performing a fast fallback in order to avoid a link disconnection and devices supporting the same. As an embodiment of the present invention, a method for performing a fast fallback by a terminal in a wireless access system supporting a millimeter wave (mmWave) may comprise the steps of: establishing radio resource control (RRC) connections with a mmWave base station and a legacy base station, respectively; receiving downlink data transmitted from the mmWave base station; receiving, from the legacy base station, resource-related information associated with a resource to be allocated for a fast fallback; detecting whether a non-light of sight (NLoS) transition occurs in a mmWave link with the mmWave base station; and when the NLoS transition occurs, transmitting a fallback request message to the legacy base station in order to perform the fast fallback.

Abstract: A method for offloading traffic in a wireless communication system, receiving, by a user equipment (UE), a deactivate bearer request indicating reactivation is required for a packet data network (PDN) connection, wherein the deactivate bearer request is triggered by a Mobility Management Entity (MME) which has obtained subscription data for the UE from a Home Subscriber Server (HSS) and has received local gateway (L-GW) information indicating a transport layer address of a L-GW being capable of offloading the traffic, wherein the subscription data for the UE is defined based on an Access Point Name (APN), wherein the subscription data for the UE includes a first information element indicating whether a corresponding traffic associated with the APN is allowed for Selected IP Traffic Offload (SIPTO) and a second information element indicating whether the corresponding traffic associated with the APN is allowed for Selected IP Traffic Offload via Local Network (SIPTO@LN).

Abstract: A mobile terminal and a method for controlling the same are provided. The mobile terminal includes: a camera configured to capture a video; a display configured to perform input or output; a memory; and a controller configured to set a video capturing method, capture a plurality of partial images, edit some of the plurality of partial images, determine whether to end the capturing of the partial images, edit the plurality of partial images, and encode the partial images to produce one whole image. Accordingly, it is possible to capture a plurality of short videos and edit each of the captured videos during capturing.

Abstract: Disclosed are a method of preparing a superabsorbent polymer, including adding a superabsorbent polymer with a water dispersion solution containing particles having i) a BET specific surface area of 300 to 1500 m2/g and ii) a porosity of 50% or more, and a superabsorbent polymer prepared by the method.

Abstract: The invention described in the present specification relates to a color conversion film including a resin matrix; and an organic fluorescent substance dispersed in the resin matrix, and absorbing blue or green light and emitting light having a wavelength different from the absorbing light, wherein the resin matrix includes a thermoplastic resin, and the color conversion film has a light emission peak with a FWHM of 60 nm or less, quantum efficiency of 80% or greater and an absorption coefficient of 30,000 M?1cm?1 or greater at a maximum absorption wavelength when irradiating light having a light emission peak at 450 nm, a FWHM of 40 nm or less and monomodal light emission intensity distribution, a method for preparing the same, and a backlight unit including the color conversion film.

Abstract: The present specification discloses a mobile terminal and a control method thereof. According to an embodiment of the present specification, the mobile terminal comprises: a display unit configured to output a first region which displays messages and a second region which displays information on a contact corresponding to the messages; and a control unit for outputting, to the display unit, a controller user interface (UI) for processing the messages to be displayed in the first region in association with the information on the contact displayed in the second region when a preset touch input is received in the second region. Here, the controller UI comprises: a menu region which displays scrap information associated with the information on the contact displayed in the second region among the messages displayed in the first region; and an input region which displays a message corresponding to the scrap information selected in the menu region.

Abstract: A method and an apparatus for triggering uplink data in a wireless LAN are disclosed. A method for receiving uplink data in a wireless LAN may comprise: a step in which an access point (AP) transmits a trigger frame for random connection; and a step in which the AP receives at least one buffer status report frame from at least one STA on a random connection transmission opportunity (TXOP) which is set on the basis of the trigger frame for random connection, wherein the random connection TXOP is allocated for a channel access attempt for transmitting the buffer status report frame of each of a plurality of non-specific STAs, and each of the at least one STA may be an STA which succeeds in the channel access among the plurality of non-specific STAs.

Abstract: A watch-type mobile terminal including a display; a bezel forming a rim of the display and including a touch sensor; a crown; and a controller configured to display first content on the display, sense a rotation input on at least one of the crown and the bezel when the first content is displayed on the display, and display second content associated with the first content on the display in response to the rotation input.

Abstract: A method of controlling a Wi-Fi device in a vehicle, which includes determining, via a controller of the Wi-Fi device, an abnormal state of the vehicle; adding, via the controller, vendor specific data in a management frame to be transmitted to a different Wi-Fi device in a different vehicle via Wi-Fi Direct based on the determined abnormal state; transmitting, via a wireless communication unit of the Wi-Fi device, the generated vendor specific data to the different Wi-Fi device, wherein the management frame comprises at least one of a probe request frame, a probe response frame, a service request frame and a service response frame, and wherein the management frame is transmitted before an authenticated connection is established between the Wi-Fi device and the different Wi-Fi device.

Abstract: Embodiments provide an OLED display device and a method of operating the same, which distribute a load to sub-pixels other than a specific sub-pixel such that the specific sub-pixel is not overloaded by using a WRGB-based OLED pixel structure, preventing a residual image and degradation of the specific sub-pixel, which may occur in the OLED display device.

Abstract: The present invention relates to a detachable module-type mobile terminal and a control method therefor. The module-type mobile terminal, according to one embodiment of the present invention, comprises: a body; a display unit formed on the front side of the body, for outputting, by a first method, at least one icon related to an application; a sensor module detachable from the rear side of the body; a sensing unit for sensing whether the sensor module is provided at the rear side of the body; and a control unit for determining an application drivable by the provided sensor module and changing, by a second method different from the first method, a display method of an icon corresponding to the determined application among the at least one icon.

Abstract: Disclosed are a multimedia device and a control method therefor. A multimedia device according an embodiment of the present invention may comprise: a display unit; and a control unit for controlling the display unit to display a menu bar on a screen, wherein the menu bar includes a plurality of icons arranged in one direction, and the icons adjacent to each other are displayed while partially overlapping each other. A multimedia device according to another embodiment of the present invention may comprise: a display unit; and a control unit for controlling the display unit to display a menu bar on a screen, wherein the menu bar includes a plurality of icons arranged in one direction, and the control unit sets a fixed area by fixing at least one icon included in the menu bar by a fixing frame, and separates the menu bar into the fixed area and a variable area according to whether the fixing frame exists.

Abstract: A photovoltaic module includes a solar cell module including multiple solar cells, and first and second conductive lines connected respectively to first and second solar cells among the solar cells, and a junction box attached to the solar cell module. The junction box includes a power conversion unit including a capacitor unit located between the first and second conductive lines, a converter unit to change the level of a DC voltage at opposite ends of the capacitor unit and to output the DC voltage, and a controller to control the converter unit. When shading occurs in some of the solar cells, the power conversion unit supplies a second current, the level of which is lower than the level of a first current supplied before shading occurs, whereby the possibility of generation of a hot spot may be reduced despite the absence of bypass diodes when shading occurs.

Abstract: A bifacial solar cell includes a substrate; an emitter portion formed on a first surface of the substrate; a first insulating layer formed on the emitter portion; a plurality of first electrodes contacting the emitter portion through the first insulating layer and extended in a first direction; a plurality of first current collectors extended in a second direction crossing the first direction, wherein the plurality of first current collectors are electrically and physically connected to the plurality of first electrodes; a second insulating layer formed on a second surface of the substrate; a back surface field formed on the second surface of the substrate, and having an impurity concentration that is higher than an impurity concentration of the substrate; a plurality of second electrodes contacting the back surface field through the second insulating layer and extended in the first direction; and a plurality of second current collectors extended in the second direction.

Abstract: The present disclosure relates to a module for regenerating an electrolyte capable of being used in a flow battery, and a method for regenerating an electrolyte of a flow battery using the same, and in particular, to a module for regenerating an electrolyte introducing any one of anode and cathode electrolytes each stored in anode and cathode electrolyte storage units to a counter electrolyte storage unit, and circulating any one of the anode and cathode electrolytes in a direction opposite to the direction of electrolyte introduction to uniformly mix the anode and cathode electrolytes, and as a result, capable of recovering battery capacity reduced by a membrane permeation phenomenon between the anode and cathode electrolytes when driving a flow battery for a long period of time, and a method for regenerating an electrolyte of a flow battery using the same.

Abstract: Disclosed are a device and a method for controlling a battery rack relay and the device includes: a voltage measuring unit measuring voltages of a plurality of battery racks; a reference voltage selecting unit performing a simulation having the respective voltages of the plurality of battery racks as reference values based on the voltages of the plurality of battery racks, which are measured to select a reference voltage value among the reference values of the plurality of respective battery rack voltages; and a control unit controlling relays to be attached to a battery rack having the selected reference voltage value and a battery rack in which a difference from the reference voltage value has a voltage value within a predetermined first set value.

Abstract: The present invention provides a positive electrode active material prepared using a preparation method including mixing a precursor of a metal for a positive electrode active material with a nanosol of a ceramic-based ion conductor to adsorb the nanosol of the ceramic-based ion conductor on the precursor surface, and mixing the nanosol of the ceramic-based ion conductor-adsorbed precursor with a lithium raw material, and heat treating the resultant to prepare a positive electrode active material, and thereby having greatly increased structural stability by the lithium complex metal oxide present on the surface as a metal element forming the ceramic-based ion conductor being uniformly doped, and as a result, capable of significantly enhancing capacity, a rate property and a cycle property of a battery, a method for preparing the same, and a lithium secondary battery including the same.

Abstract: A terminal apparatus for a device-to-device (D2D) terminal in a wireless communication system, according to an embodiment of the present invention, comprises a transmission device and a reception device; and a processor, wherein the processor generates and transmits a primary sidelink synchronization signal (PSSS) and a secondary sidelink synchronization signal (SSSS), wherein, if a PSBCH is transmitted in a subframe in which the PSSS and the SSSS are being transmitted and is normal CP, the PSSS and a PSBCH on power is the average power of a period, in the subframe in which the PSSS and the SSSS are being transmitted, not including a transient period, wherein the transient period of a starting part of the period for the PSSS and PSBCH ON power is not overlapped with an OFDM symbol on which the PSSS is transmitted.

Abstract: A base station (BS) configures a first set of subframes, whose type is fixed among a plurality of cells, and a second set of subframes in a radio frame. The plurality of cells may belongs to different operators, and the different operators may be synchronized with each other. The first set of subframes may be intended subframes. The BS communicates with a user equipment (UE) by using at least one of the first set of subframes and the second set of subframes.

Abstract: A method for determining a weight for hybrid beamforming by a base station in a wireless communication system according to an embodiment of the present invention comprises the steps of: signaling, to a terminal, a configuration for repeatedly transmitting a first omni-directional beam equally formed in all directions; receiving the first omni-directional beam from the terminal by forming a second omni-directional beam; repeatedly receiving the first omni-directional beam from the terminal by sequentially forming a plurality of directional beams corresponding to a plurality of directions; and determining a weight for hybrid beamforming on the basis of a gain difference between the first omni-directional beam received through the second omni-directional beam and the first omni-directional beam received through a first directional beam among the plurality of directional beams.

Abstract: Disclosed is a method for a base station to transmit a downlink control channel in a wireless communication system. Specifically, the method comprises the steps of: separating each resource block, of which there are at least one, into a preconfigured number of subsets; structuring basic resource allocation units for an downlink control channel as one of the subsets comprised in one or more resource blocks; configuring the basic resource allocation units, the number of which correspond to the aggregation level of the downlink control channel, as transmission resources; and using the transmission resource to transmit the downlink control channel to a terminal.

Abstract: In the present invention, disclosed is a method for uplink multi-user transmission in a wireless communication system and an apparatus therefor. Specifically, a method for performing, by a station (STA), uplink (UL) multi-user (MU) transmission in a wireless communication system comprises the steps of: receiving, from an access point (AP), a trigger frame including information for UL MU transmission; and transmitting an UL MU PPDU on the basis of the information for UL MU transmission, wherein the trigger frame is a medium access control (MAC) frame, a MAC header of the trigger frame includes a type field and a subtype field, and the type of the trigger frame may be indicated by the type field and the subtype field.

Abstract: A broadcast signal receiver includes a demodulator configured to perform Orthogonal Frequency Division Multiplexing (OFDM) demodulation on a received broadcast signal; a frame parser configured to derive service data by parsing a signal frame of the received broadcast signal based on a number of carriers of the signal frame; a decoder configured to perform error correction on the service data; and an output processor configured to receive the service data and output a data stream, wherein the number of carriers of the signal frame is determined by equation: NoC=NoC_max?k*?, the NoC being the number of carriers, the NoC_max being maximum number of carriers, the k being a reducing coefficient and the ? being a control unit value, wherein the k ranges from 0 to 4 and the ? is 96 for 8K Fast Fourier Transform (FFT), 192 for 16K FFT, 384 for 32K FFT.

Abstract: Disclosed is a method for a station (STA) device transmitting data in a Wireless Local Area Network (WLAN) system. The method for transmitting data, according to one embodiment of the present invention, comprises the steps of: FEC encoding transmission data; interleaving the transmission data; constellation mapping the transmission data; performing IDFT on the transmission data; and upconverting the transmission data and transmitting a transmission signal, wherein IDFT is performed using different FFT sizes for a first part of the transmission signal and a second part of the transmission signal, and the second part of the transmission signal is allocated to at least one STA in units of at least one resource unit.

Abstract: A light emitting device package can include a base including a flat top surface; first and second electrical circuit layers on the flat top surface; a light emitting diode on a region of the flat top surface; an optical member to pass light; and a guiding member having a closed loop shape surrounding the region for guiding the optical member, in which the first and second electrical circuit layers respectively include first and second portions disposed between the flat top surface and a bottom surface of the guiding member, in which the first and second electrical circuit layers respectively include first and second extension portions that respectively extend from the first and second portions to locations outside of an outer edge of the guiding member in different directions.

Abstract: Provided is a method for receiving a downlink control channel in a machine type communication (MTC) device. A method for receiving a downlink control channel can comprise the steps of: receiving first configuration information about an MTC device-operable subband among system bands of a cell; receiving second configuration information, about a subframe, for monitoring a downlink control channel in a cell-specific search space (CSS); and switching from a subband with respect to the first configuration information to a pre-configured cell-common subband and then receiving, in the cell-common subband in a subframe with respect to the second configuration information, a downlink control channel in the CSS and another channel.

Abstract: The present invention provides an apparatus for processing at least one PDU (protocol data unit) in an N layer in a transmitting side of a broadcast system, the apparatus comprising a PDU processor for receiving at least one higher (N+1) layer PDU and generating a PDU including the received at least one higher (N+1) layer PDU and a PDU post-processor for post processing the generated PDU and transmitting the post-processed PDU to a lower (N?1) layer.

Abstract: The present invention relates to a device for transmitting and receiving a signal and a method for transmitting and receiving a signal. One embodiment of the present invention provides a method for transmitting a signal, comprising the steps of: encoding video source data and outputting video data including a supplemental enhancement information (SEI) message having group of pictures (GOP) metadata; and transmitting the video data. According to the embodiment of the present invention, a trick play for an encoded stream can be more efficiently provided.

Abstract: A method and apparatus for performing a random access (RA) procedure in a wireless communication system is provided. A user equipment (UE) establishes connection with a first node and a second node, and transmits an RA preamble to the second node. If a number of RA preamble transmissions reaches a maximum number, the UE stops uplink (UL) transmission of all cells in a group to which the second node belongs, and transmits an indication indicating that transmission of the RA preamble has failed to the first node.

Abstract: A camera module including a main body having a spherical shape and including a camera; a first arm connected to the main body and including a first motor configured to rotate the main body; a second arm connected to the first arm and including a second motor configured to rotate the first arm; a fixing member connected to the second arm and including a third motor for rotating the second arm; and a controller configured to independently rotate the main body, the first arm and the second arm to allow omnidirectional capturing in a three-dimensional space where the camera is placed.

Abstract: During path switching between sidelink (SL) and uplink (UL) for vehicle-to-everything (V2X) message transmission, a path switching layer of a user equipment (UE), which may be located right above a packet data convergence protocol (PDCP) layer of the UE, stores a vehicle-to-everything (V2X) message, which is not transmitted yet on an old path, in a transmission buffer. And then, the path switching layer of the UE re-submits the V2X message stored in the transmission buffer to a lower layer of a new path.

Abstract: Disclosed is a wireless headset including: a main body; sub-bodies detachably attached to both lateral ends of the main body by a retractable cable; earpieces detachably attached to the sub-bodies and configured to output a sound when supportedly installed in the sub-bodies; and a controller configured to output the sound wirelessly through the earpieces when the earpieces are separated from the sub-bodies.

Abstract: Disclosed herein are a method and apparatus for monitoring UE reachability in a wireless communication system. A method for monitoring UE reachability may include receiving, by a Mobility Management Entity, a monitoring request message for UE reachability including a maximum response time from a Home Subscriber Server, detecting, by the MME, the UE reachability if it is expected that paging is able to be transmitted to UE when extended Discontinuous Reception is applied to the UE, and sending, by the MME, a UE reachability notification to a Service Capability Exposure Function before a next paging occasion of the UE, wherein the maximum response time may indicate a time during which the UE maintains a reachable state so that downlink data is reliably delivered to the UE, and wherein an occasion when the UE reachability notification is transmitted may be determined by taking into consideration the maximum response time.

Abstract: Provided is a method for receiving a downlink control channel in a machine type communication (MTC) device configured to operate only in a part of a band among system bands of a cell. A method for receiving a downlink control channel can comprise the steps of: determining a precoding matrix index (PMI) applied to a downlink control channel receivable only in a part of a band; receiving from a cell the downlink control channel in the part of the band in a data area of a subframe; and decoding the downlink control channel, which has been received from the cell, on the basis of the determined PMI.

Abstract: A method for receiving a signal by a user equipment in a wireless communication system, the method includes detecting downlink control information (DCI) within a subframe indicated by a radio resource control (RRC) layer signal; and receiving, based on the DCI, a data signal in K consecutive subframes other than at least one subframe corresponding to a specific subframe, wherein K is greater than 1, wherein the specific subframe includes at least a subframe transmitting a physical broadcast channel (PBCH), a subframe transmitting a synchronization signal, and a subframe transmitting system information, and wherein the DCI is not applied to the at least one subframe.

Abstract: In an embodiment, a user equipment (UE) receives common scheduling information which schedules the data across multiple multicast-broadcast single-frequency network (MBSFN) areas, and receives the data according to the common scheduling information. In another embodiment, the UE receives common scheduling information which schedules the data on either a physical multicast channel (PMCH) or a physical downlink shared channel (PDSCH), and receives the data on a corresponding channel according to the common scheduling information. The data may correspond to a vehicle-to-everything (V2X) message.

Abstract: A method for transmitting an uplink signal by a user equipment (UE). The method includes receiving an uplink grant including a new data indicator (NDI) on a physical downlink control channel (PDCCH) from a network, determining whether the PDCCH is not addressed to a temporary cell identifier, determining whether the NDI has been toggled when the PDCCH is not addressed to the temporary cell identifier, and transmitting a new data to the network when the NDI has been toggled.

Abstract: A method and apparatus for transmitting uplink control information (UCI) in a wireless communication system is provided. When a large number of carries are configured, a user equipment (UE) splits the UCI for a plurality of cells into a physical uplink control channel (PUCCH) and a physical uplink shared channel (PUSCH), and transmits the split UCI via the PUCCH and the PUSCH.

Abstract: The present invention relates to a method and a device for transmitting a training symbol for hybrid beamforming. A method for transmitting a training symbol for estimating an analog beam in a wireless access system which supports hybrid beamforming according to one embodiment of the present invention comprises: a step of repeatedly transmitting a training symbol a number of times equivalent to the number of analog candidate beams; and a step of repeatedly transmitting a broadcasting channel a number of times equivalent to the number of analog candidate beams. A training symbol section, where the training symbol is transmitted, can be allocated to the same subframe as a subframe to which the repeatedly transmitted broadcasting channel is allocated.

Abstract: The present specification relates to a method in which a base station efficiently notifies a transmitting terminal of a resource domain for transmitting control information and data in a wireless communication system supporting device-to-device (D2D) communication. To this end, the transmitting terminal receives resource allocation information associated with D2D communication from the base station, and transmits, to a receiving terminal, control information (SA) for D2D communication and data corresponding to the SA on the basis of the resource allocation information received from the base station, wherein a time domain location for transmitting the SA has a predetermined time domain pattern on the basis of the resource allocation information received from the base station, and a frequency domain location for transmitting the SA can be determined in advance by one of two specific hopping patterns.

Abstract: In the present invention, a method for a base station transmitting a downlink channel is disclosed. More particularly, the method comprises the steps of: dividing each of one or more resources blocks, which are allocated for the downlink control channel, into a predetermined number of subsets; deciding the number of subsets that comprise a resource allocation basic unit for the downlink control channel, based on a start symbol and/or an end symbol of the downlink control channel; mapping a transmission resource on the downlink control channel as the resource allocation basic unit comprising the predetermined number of subsets; and transmitting the downlink control channel by using the transmission resource that is mapped.

Abstract: The present specification describes a cliché, a method of manufacturing the cliché, and a printing method using the cliché.

Abstract: A washing machine of the present invention comprises a casing; a tub disposed inside the casing; a drum rotatably provided inside the tub, for accommodating laundry therein; and a gasket interposed between the casing and the tub, for preventing water in the tub from leaking between the tub and the casing. Wherein the gasket comprises a plurality of gasket nozzles for spraying water into the drum; and a plurality of connectors for supplying water to the respective gasket nozzles. Wherein the gasket nozzle comprises a spray guidance surface for refracting the an advancing direction of the water supplied through the connector so as to spray the water toward inside of the drum; and a plurality of protrusions provided adjacent to an finish end of the spray guidance surface on which the water guided along the spray guidance surface is separated, and arranged along an width direction of the spray guidance surface.