Abstract: A method of monitoring and managing performance of an artificial neural network model for an air interface may comprise: receiving, by a network (NW) including a communication node performing a function of monitoring and managing performance of an artificial neural network model, a performance metric of the artificial neural network model from a user equipment (UE); and controlling, by the communication node, activation or deactivation of the artificial neural network model according to the performance metric, wherein the artificial neural network model is activated to improve a main performance metric of a mobile communication system including the communication node and the UE connected through an air interface.

Abstract: A method of a terminal may comprise: receiving a first message including state information of a base station from the base station; identifying preliminary inactive state information included in the first message when the state information of the base station indicates a preliminary inactive state; and performing a cell selection based on the preliminary inactive state information.

Abstract: A method of a terminal may comprise: receiving a reference signal from a base station; generating channel information based on the reference signal; generating wavelet-transformed channel information by applying wavelet transform to the channel information; generating compressed channel information by compressing the wavelet-transformed channel information; and transmitting the compressed channel information to the base station.

Abstract: A handover method of a first terminal in a wireless communication system may comprise: transmitting a first measurement report message to a first cell that is a primary cell (PCell); receiving, from the first cell, one or more first configuration messages for one or more target cells determined according to the first measurement report message; adding each of the one or more target cells as a candidate PCell based on the one or more first configuration messages; and performing data transmission and reception with at least one cell among the first cell and the one or more candidate PCells.

Abstract: A driving system for a backlight unit includes: a system unit outputting first and second dimming signals for driving the backlight unit; and an inverter unit driving the backlight unit with a 2-block scanning method using the first and second dimming signals received directly from the system unit.

Abstract: The present invention relates to a back light unit for a liquid crystal display device, which can improve safety and reliability of the back light unit; and a method for fabricating the same. The back light unit for a liquid crystal display device includes lamps for supplying a light to a liquid crystal display panel, a printed circuit board of a non-conductive plastic having sockets mounted thereto for supplying a high voltage to the lamps, a cover bottom fastened to the printed circuit board, having the lamps received therein, and a hook shaped projection formed as one unit with the printed circuit board for placing in a hole in the cover bottom for fastening the printed circuit board to the cover bottom.

Abstract: Disclosed is an LCD device having molding-type substrates formed so as to have a controllable thickness through simplified fabricating processes. The LCD device comprises: a lower cover; a plurality of lamps disposed on the lower cover with a constant interval therebetween, and providing light; molding-type substrates disposed at both sides of the lower cover, and having lamps coupled thereto; and an LC panel disposed on the lamps, and receiving light, wherein each of the molding-type substrates comprises: a conductive wire to which a voltage is supplied from outside; grippers integrally formed on the conductive wire with a constant interval therebetween, and coupling the lamps; and a bar-shaped mold frame including the conductive wire therein, and exposing the grippers to outside.

Abstract: A driving system for a backlight unit includes: a system unit outputting first and second dimming signals for driving the backlight unit; and an inverter unit driving the backlight unit with a 2-block scanning method using the first and second dimming signals received directly from the system unit.

Abstract: The present invention relates to a back light unit for a liquid crystal display device, which can improve safety and reliability of the back light unit; and a method for fabricating the same. The back light unit for a liquid crystal display device includes lamps for supplying a light to a liquid crystal display panel, a printed circuit board of a non-conductive plastic having sockets mounted thereto for supplying a high voltage to the lamps, a cover bottom fastened to the printed circuit board, having the lamps received therein, and a hook shaped projection formed as one unit with the printed circuit board for placing in a hole in the cover bottom for fastening the printed circuit board to the cover bottom.

Abstract: Disclosed is an LCD device having molding-type substrates formed so as to have a controllable thickness through simplified fabricating processes. The LCD device comprises: a lower cover; a plurality of lamps disposed on the lower cover with a constant interval therebetween, and providing light; molding-type substrates disposed at both sides of the lower cover, and having lamps coupled thereto; and an LC panel disposed on the lamps, and receiving light, wherein each of the molding-type substrates comprises: a conductive wire to which a voltage is supplied from outside; grippers integrally formed on the conductive wire with a constant interval therebetween, and coupling the lamps; and a bar-shaped mold frame including the conductive wire therein, and exposing the grippers to outside.

Abstract: An apparatus for generating an in-phase/quadrature-phase (I/Q) signal in a wireless transceiver is disclosed, including a local oscillator for generating an oscillation signal, and first and second mixers for mixing an oscillation signal with a transmission/reception signal to convert the transmission/reception signal into a baseband or high-frequency signal. The apparatus includes a phase locked circuit for controlling the local oscillator, and a polyphase filter installed between the local oscillator and the mixers, for separating the oscillation signal from the local oscillator into an I signal and a Q signal depending on a control signal from the phase locked circuit, and outputting the separated I and Q signals to the first and second mixers, respectively.

Abstract: Disclosed is an ultra wide band signal generator. The ultra wide band signal generator generates a signal of a required frequency using a harmonic signal having a frequency range of a ultra wide band (UWB). The ultra wide band signal generator includes an active inductor for generating harmonic signals having power strengths substantially equal to each other within a non-linear operation range, the tunable active inductor capable of tuning a value thereof, an oscillator for amplifying and outputting the harmonic signals generated from the active inductor by frequency-transiting the harmonic signals into high frequency bands, and a filter for selectively outputting one of the harmonic signals output from the oscillator.

Abstract: Disclosed is an ultra wide band signal generator. The ultra wide band signal generator generates a signal of a required frequency using a harmonic signal having a frequency range of a ultra wide band (UWB). The ultra wide band signal generator includes an active inductor for generating harmonic signals having power strengths substantially equal to each other within a non-linear operation range, the tunable active inductor capable of tuning a value thereof, an oscillator for amplifying and outputting the harmonic signals generated from the active inductor by frequency-transiting the harmonic signals into high frequency bands, and a filter for selectively outputting one of the harmonic signals output from the oscillator.

Abstract: Disclosed is a local oscillation circuit for a direct conversion receiver, which includes a local oscillator for outputting a local oscillation signal of a predetermined frequency; and a fractional signal generator for converting the local oscillation signal into a fractional harmonic signal, which has a frequency equal to a frequency of a received signal, and outputting the converted signal to a down converter. The fractional signal generator includes a divider for dividing a frequency of an output signal of the fractional signal generator by a predetermined integer; and a mixer for mixing the local oscillation signal and an output signal of the divider.

Abstract: An apparatus for generating an in-phase/quadrature-phase (I/Q) signal in a wireless transceiver is disclosed, including a local oscillator for generating a local oscillation signal, and first and second mixers for mixing the oscillation signal with a transmission/reception signal to convert the transmission/reception signal into a baseband or high-frequency signal. The apparatus includes a phase locked circuit for controlling the local oscillator, and a polyphase filter installed between the local oscillator and the mixers, for separating the oscillation signal from the local oscillator into an I signal and a Q signal depending on a control signal from the phase locked circuit, and outputting the separated I and Q signals to the first and second mixers, respectively.