Abstract: Embodiments of the present disclosure are directed to forwarding a large amount of data in a machine-to-machine (M2M) system, and a method for operating a first device may include: transmitting, to a second device, a request message for bulk data transfer; and receiving, from the second device, an acknowledgment message for notifying completion of the bulk data transfer, wherein the request message may include at least one of information for identifying data to be included in bulk data, information on a target common service entity (CSE) in a target platform that receives the bulk data, information for indicating processing of source data after the bulk data transfer, and information for accessing the target CSE.

Abstract: A vehicular air-conditioning apparatus includes a photocatalytic module in which light is radiated on a photocatalytic filter to sterilize the photocatalytic filter. In particular, vehicular air-conditioning apparatus incudes: a duct to allow conditioned air to flow therethrough; the photocatalytic filter mounted in the duct and coated with a photocatalytic material to remove harmful substances in reaction to light energy; and a rotation unit rotatably mounted in the duct. In particular, the rotation unit is provided with a light source to radiate light toward the photocatalytic filter. When the rotation unit is rotated, a position of the light source is changed in a rotational direction of the rotation unit such that the light is radiated on the photocatalytic filter over an increased range. Thus, a filter sterilization effect is improved over the entire area of the photocatalytic filter with reduced number of light sources.

Abstract: A wireless communication method and apparatus in a wireless local area network (WLAN) system are disclosed. A wireless communication method according to one embodiment may include generating a high-efficiency Wi-Fi (HEW) frame including at least one of an HEW-SIG-A field and an HEW-SIG-B field which include channel information for communications according to an Orthogonal Frequency-Division Multiple Access (OFDMA) mode, and transmitting the generated HEW frame to a reception apparatus.

Abstract: An operation method of a repeater relaying wireless communications between a base station and at least one terminal in a communication system may include: transmitting, to the base station, a first capability report including information on beam-related capability supported by the repeater; transmitting, to the base station, a first request signal for requesting to perform first configuration for coverage extension of the repeater; receiving, from the base station, information on the first configuration configured based on the first capability report and the first request signal; and relaying the wireless communications between the base station and the at least one terminal based on one or more beams formed based on the received first configuration.

Abstract: A dual set-up zoom actuator includes a first carrier having a first lens and movable along an optical axis, a second carrier having a second lens and being capable of moving anterior or posterior to the first carrier along the optical axis, a housing enclosing the first and second carriers, a first coil unit equipped to the housing and having n, which is a natural number not less than two, first coils disposed anterior or posterior along the optical axis, a second coil unit equipped to the housing at a location different than the first coil unit and having n+1 second coils disposed anterior or posterior along the optical axis, a first magnet having n+1 magnetic poles facing the first coil unit and mounted on the first carrier, and a second magnet having n magnetic poles facing the second coil unit and mounted on the second carrier.

Abstract: The present invention relates to a culture device and culture method for culturing a 3D cell aggregation and, specifically, to an overall technique for effectively culturing a 3D cell aggregation by using a culture device including a porous microwell, a membrane, and other additive components.

Abstract: A low-noise amplifier in a receiver supporting a beam forming function may selectively change a phase shift for beam steering. The low-noise amplifier may include first and second transistors and a variable capacitance circuit connected to a gate of the second transistor. The variable capacitance circuit may selectively change capacitance thereof based on a capacitance control signal applied thereto according to beam-forming information, where the changed capacitance correspondingly causes a phase change in an output signal of the low-noise amplifier. A similar scheme may be employed for amplifiers in transmit signal paths to steer a transmit beam.

Abstract: An embodiment vehicle door opening/closing system includes an inner panel defining a door open portion of a vehicle, the inner panel including an installation groove having a protruding or recessed shape, a driving device disposed in the installation groove of the inner panel, and a link mechanism installed on a chassis through a rotating shaft, a first end of the link mechanism being connected to the driving device such that power is transferred thereto, and a second end of the link mechanism being connected to a door such that, during driving of the driving device, the link mechanism rotates with reference to the rotating shaft to open/close the door.

Abstract: An embodiment is a ramp apparatus for a vehicle, the ramp apparatus including a housing mounted on a vehicle body, a ramp assembly configured to move between a stowed position in which the ramp assembly is stowed in the housing and an extended position in which the ramp assembly is extended out from the housing, wherein the ramp assembly is configured to be moved telescopically to be extended and retracted. The ramp apparatus may further include a hinge mechanism configured to allow the ramp assembly to pivot when the ramp assembly is deployed from the housing, wherein the hinge mechanism includes a moving body connected to the ramp assembly through a hinge shaft, and a hinge drive unit mounted on the moving body.

Abstract: An embodiment is a ramp apparatus for a vehicle, the ramp apparatus including a first ramp platform, a second ramp platform configured to telescopically move with respect to the first ramp platform, a third ramp platform configured to telescopically move with respect to the second ramp platform, and a drive mechanism configured to move the second ramp platform and the third ramp platform, wherein the drive mechanism includes a drive sprocket, a driven sprocket spaced apart from the drive sprocket, a chain connecting the drive sprocket and the driven sprocket, a motor configured to drive the drive sprocket, a drive pinion coupled to the drive sprocket, a drive rack gear meshing with the drive pinion, a driven pinion coupled to the driven sprocket, and a driven rack gear meshing with the driven pinion.

Abstract: Disclosed are a method and device for communication using a fronthaul interface. According to the present invention, an operation method of an O-RU comprises the steps of: generating a plurality of first measurement results by performing measurement operations on a first measurement target in a single notification period according to a notification interval; generating a first measurement result list including the plurality of first measurement results; and transmitting, to an a message including the first measurement result list.

Abstract: A wireless communication method and apparatus in a wireless local area network (WLAN) system are disclosed. A wireless communication method according to one embodiment may include generating a high-efficiency Wi-Fi (HEW) frame including at least one of an HEW-SIG-A field and an HEW-SIG-B field which include channel information for communications according to an Orthogonal Frequency-Division Multiple Access (OFDMA) mode, and transmitting the generated HEW frame to a reception apparatus.

Abstract: A method and apparatus for configuring mesh peer link and a method and apparatus for switching channel in wireless mesh network are provided. A method of configuring a mesh peer link in a wireless mesh network includes a first mesh station transmitting a mesh peering open frame to a second mesh station, and the first mesh station receiving a mesh peering confirm frame from the second mesh station in response to the mesh peering open frame, wherein the first mesh station and the second mesh station support a very high throughput (VHT), and wherein the mesh peering open frame and the mesh peering confirm frame comprise a VHT capability information element.

Abstract: A low-noise amplifier in a receiver supporting a beam forming function may selectively change a phase shift for beam steering. The low-noise amplifier may include first and second transistors and a variable capacitance circuit connected to a gate of the second transistor. The variable capacitance circuit may selectively change capacitance thereof based on a capacitance control signal applied thereto according to beam-forming information, where the changed capacitance correspondingly causes a phase change in an output signal of the low-noise amplifier. A similar scheme may be employed for amplifiers in transmit signal paths to steer a transmit beam.

Abstract: A method of sterilizing a vehicle interior using a drone includes: receiving information on whether a passenger is boarding or the passenger has initiated a sterilization request; and when the passenger does not ride in a vehicle or the sterilization request is received from the passenger, performing, with a drone, a set of instructions to implement a sterilization logic. In particular, the sterilization logic includes determining an infected area using a sensor part, and allowing the drone to fly and performing intensive sterilization in the infected area.

Abstract: A sterilization system for a vehicle includes an outer housing configured to rotate about a first shaft and having an opening formed to face an interior space, an inner housing installed inside the outer housing, exposed to the interior space through the opening, configured to rotate about a second shaft, and having a light transmitting portion through which sterilizing light is transmitted, a light source embedded in the inner housing and configured to irradiate the sterilizing light toward the light transmitting portion, and a driver configured to rotate the outer housing and the inner housing to irradiate the sterilizing light to the interior space and to change an irradiation angle of the sterilizing light.

Abstract: The present invention relates to a method and apparatus for transceiving data. A method in which a transmitting terminal transmits data to a receiving terminal in a MIMO system according to one embodiment of the present invention comprises the following steps: generating a data field containing the data; generating a signal field containing information on the data field; generating a data frame containing the data field and the signal field; and transmitting the data frame to the receiving terminal. According to the present invention, an end of the frame being transmitted is accurately notified to the receiving terminal in a communication system in which the frame is transmitted using MIMO, thereby decoding the frame in a more efficient manner at the receiving terminal.

Abstract: Embodiments for one-way sound absorbing systems are described herein. In one example, a sound absorbing system includes a waveguide having open ends for receiving an incoming acoustic wave and wall portions defining a first port and a second port. A first electroacoustic absorber is mounted to the first port and is electrically connected to a shunting circuit, while a second electroacoustic absorber is mounted to the second port and is electrically connected to an open circuit. The sound absorption of the system is directional dependent.

Abstract: A sliding/swing composite door for a vehicle includes a sliding door, an outside handle located on an outer surface of the sliding door, wherein the sliding door is configured to be opened upon a first operation of the outside handle, and a swing door configured to be opened integrally with the sliding door upon a second operation of the outside handle, wherein the swing door is configured to be rotated and opened in a state where the sliding door is fully opened.

Abstract: A method and an apparatus for allocating a flexible transmission slot in a wireless local area network (LAN) system are disclosed. A flexible transmission slot allocation method of an access point (AP) in a wireless local area network (WLAN) system according to an exemplary embodiment includes transmitting a beacon including a traffic indication map (TIM) bit to a station, receiving a power save poll (PS-Poll) from the station in a slot implicitly allocated by the TIM bit, and transmitting an acknowledgement (ACK) including transmission slot allocation information on downlink data to the station.