Abstract: Disclosed are a communication scheme and a system thereof for converging an IoT technology and a 5G communication system for supporting a high data transmission rate beyond that of a 4G system. The disclosure can be applied to intelligent services (for example, services related to a smart home, smart building, smart city, smart car, connected car, health care digital education, retail business, security, and safety) based on the 5G communication technology and the IoT-related technology. Disclosed are a method and an apparatus for supporting a multimedia telephony (MMTEL) system, a method and an apparatus for efficiently operating a new QoS layer (service data access protocol (SDAP)), and a method and an apparatus for efficiently supporting a bandwidth part in the SCell in carrier aggregation or in dual connectivity.

Abstract: An electronic device is disclosed, including a housing including a first surface, a second surface facing away from the first surface, and a side surface structure at least partially surrounding a space formed between the first surface and the second surface, an acoustic hole formed in the housing and configured to emit a sound in a direction the first surface faces, a speaker disposed in the housing, and a first acoustic waveguide and a second acoustic waveguide together providing an acoustic path between the speaker and the acoustic hole, wherein the second acoustic waveguide is different from the first acoustic waveguide.

Abstract: A method and device for predictive autofocus on an object are provided.

Abstract: Provided are memristors and neuromorphic devices including the memristors. A memristor includes a lower electrode and an upper electrode that are apart from each other and first and second two-dimensional material layers that are arranged between the lower electrode and the upper electrode and stacked without a chemical bond therebetween.

Abstract: An electronic device includes: a timekeeping processor configured to: determine a sensing time point of reference sensing data, generated through sensing by a reference sensor of a plurality of sensors, and a sensing time point of other sensing data of another sensor of the plurality of sensors, based on a clock rate of the timekeeping processor; determine a time difference between the sensing time point of the reference sensing data and the sensing time point of the other sensing data; and determine a task latency from the sensing time point of the reference sensing data to a task complete time point based on the clock rate of the timekeeping processor; and one or more other processors configured to correct, based on the task latency, a task result processed according to localization of the electronic device determined for the sensing time point of the reference sensing data based on the determined time difference, the reference sensing data, and the other sensing data.

Abstract: A method and a system for supporting flexible user equipment (UE) bandwidth by the UE during a random access are provided. The method includes transmitting, to a base station, a random access preamble over a first bandwidth selected among a plurality of channel bandwidths of the UE, receiving, from the base station, a random access response over a second bandwidth selected among the plurality of channel bandwidths, and transmitting, to the base station, a scheduled transmission message over a third bandwidth selected among the plurality of channel bandwidths of the UE.

Abstract: The embodiments herein provide a method for managing short data service (SDS) disposition notifications in a Mission Critical Data (MCData) communication system. The method includes identifying, by a receiving MCData User Equipment (UE), SDS disposition request type Information Element (IE) in a SDS message received from a transmitting MCData UE. Further, the method includes initiating, by the receiving MCData UE, a timer when the disposition request type Information Element (IE) is set as Delivery and Read. Furthermore, the method includes transmitting, by the receiving MCData UE, a consolidated disposition notification to the transmitting MCData UE by stopping the timer when the SDS message is read before expiry of the timer.

Abstract: Disclosed is a method for managing multiple remote radio heads (RRHs) in a communication network, the method including, in response to an alarm indicating that a value of an operation parameter of an RRH among the multiple RRHs is beyond a predetermined range, predicting whether the RRH is faulty, based on one or more pieces of operation information of the RRH which respectively correspond to one or more timestamps; and issuing a notification indicating that the RRH is faulty when it is predicted that the RRH is faulty, wherein the one or more pieces of operation information of the RRH comprise at least one of information related to an uptime of the RRH, information related to a type of the alarm, information related to a state of the RRH, and information related to an environment of the RRH.

Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The disclosure provides a method for enabling user equipment (UE) actions upon secondary cell group (SCG) deactivation is provided.

Abstract: A quantum dot including: a core including a first semiconductor nanocrystal material including zinc, tellurium, and selenium; and a semiconductor nanocrystal shell disposed on the core, the semiconductor nanocrystal shell including zinc, selenium, and sulfur, wherein the quantum dot does not include cadmium, and in the quantum dot, a mole ratio of the sulfur with respect to the selenium is less than or equal to about 2.4:1. A production method of the quantum dot and an electronic device including the same are also disclosed.

Abstract: A quantum dot including a semiconductor nanocrystal core including Group III-V compound, a first semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core, the first semiconductor nanocrystal shell including zinc and selenium, and a second semiconductor nanocrystal shell disposed on the first semiconductor nanocrystal shell, the second semiconductor nanocrystal shell including zinc and sulfur, and a composite/electronic device. The quantum dot does not include cadmium and the first semiconductor nanocrystal shell includes a polyvalent metal dopant at an interface with the second semiconductor nanocrystal shell.

Abstract: A quantum dot including a core including a first semiconductor nanocrystal including a Group III-V compound, and a shell disposed on the core and including a semiconductor nanocrystal including a Group II-VI compound, wherein the quantum dots do not include cadmium, the shell includes a first layer disposed directly on the core and including a second semiconductor nanocrystal including zinc and selenium, a second layer, the second layer being an outermost layer of the shell and including a third semiconductor nanocrystal including zinc and sulfur, and a third layer disposed between the first layer and the second layer and including a fourth semiconductor nanocrystal including zinc, selenium, and optionally sulfur, and a difference between a peak emission wavelength of a colloidal solution of the quantum dot and a peak emission wavelength of a film prepared from the colloidal solution is less than or equal to about 5 nanometers (nm).

Abstract: A quantum dot including a core comprising a first semiconductor nanocrystal including a zinc chalcogenide and a semiconductor nanocrystal shell disposed on the surface of the core and comprising zinc, selenium, and sulfur. The quantum dot does not comprise cadmium, emits blue light, and may exhibit a digital diffraction pattern obtained by a Fast Fourier Transform of a transmission electron microscopic image including a (100) facet of a zinc blende structure. In an X-ray diffraction spectrum of the quantum dot, a ratio of a defect peak area with respect to a peak area of a zinc blende crystal structure is less than about 0.8:1. A method of producing the quantum dot, and an electroluminescent device including the quantum dot are also disclosed.

Abstract: Disclosed is a method and apparatus for processing a radar signal by correcting a phase distortion. The method includes generating radar data based on a radar transmission signal transmitted through an array antenna of a radar sensor based on a frequency modulation model and a radar reception signal received through the array antenna as the radar transmission signal is reflected by a target, correcting the radar data using a correction vector for correcting a feedline error occurring due to a feedline delay difference between channels of the array antenna, and estimating a direction of arrival corresponding to the corrected radar data using a direction matrix reflecting a phase shift of the corrected radar data according to frequency modulation characteristics of the frequency modulation model.

Abstract: A neuromorphic device for the analog computation of a linear combination of input signals, for use, for example, in an artificial neuron. The neuromorphic device provides non-volatile programming of the weights, and fast evaluation and programming, and is suitable for fabrication at high density as part of a plurality of neuromorphic devices. The neuromorphic device is implemented as a vertical stack of flash-like cells with a common control gate contact and individually contacted source-drain (SD) regions. The vertical stacking of the cells enables efficient use of layout resources.

Abstract: Disclosed are a communication scheme and a system thereof for converging an IoT technology and a 5G communication system for supporting a high data transmission rate beyond that of a 4G system. A method and an apparatus for configuring a connection with a second device, which provides access to a network, by a first device in a communication system, is provided. The method includes discovering the second device supporting a neighbor awareness network (NAN) and located within a predetermined range from the first device, exchanging an ephemeral key of the first device for identifying the first device and an ephemeral key of the second device for identifying the second device, and performing a secure connection between the first device and the second device.