Abstract:
The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system for supporting higher data rates beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A performance of the existing sliding-window superposition coding (SWSC) is degraded when a wireless channel state is changed due to a large scale fading and a small scale fading. In addition, the performance of the existing SWSC is degraded when channel state information at a receiver is different from that of the real channel. To resolve these problems, a transmitter applies an accurate data transmission rate suitable for a channel state. Therefore, a receiver applies an adaptive SWSC and to reduce a block error rate (BLER) and a hybrid automatic repeat request (HARQ) overhead of the receiver. In addition, to resolve wireless channel state change due to large and small scale fading, the transmitter may use the adaptive transmission method.
Abstract:
The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). An apparatus and method for avoiding interference in a wireless communication system, especially in a Device-to-Device (D2D) wireless communication system, are provided. The method includes creating system information including reception resource pool information to be used for the D2D wireless communication in a single radio frame, resource block information for the D2D wireless communication, and Physical Uplink Control Channel (PUCCH) information to be used for a cellular communication, and broadcasting the created system information to devices for performing the cellular communication and the D2D wireless communication.
Abstract:
A gas sensor includes a piezoelectric substrate; a resonator in an electrode region on an upper surface of the piezoelectric substrate, the resonator including interdigital transducer (IDT) electrodes and IDT pads connected to the IDT electrodes, the IDT electrodes configured to generate a surface acoustic wave in a center region of the electrode region, the surface acoustic wave propagating in a first horizontal direction; a sensing film in the center region of the electrode region on the upper surface of the piezoelectric substrate, the sensing film including a sensing material that interacts with a target gas; and a heater in an edge region surrounding the electrode region on the upper surface of the piezoelectric substrate, the heater including heater electrodes configured to heat the sensing film and heater pads connected to the heater electrodes, the heater electrodes and the heater pads forming a closed conduction loop.
Abstract:
The present disclosure relates to a 5G or pre-5G communication system for supporting a higher data transfer rate beyond a 4G communication system such as LTE. A method for controlling a cell change by a first base station according to an embodiment of the present invention comprises the steps of: generating resource information used for communication between a terminal and a second base station, when the terminal performs a cell change from a first cell corresponding to the first base station to a second cell corresponding to the second base station; and transmitting the resource information to the terminal so that the terminal and the second base station perform a random access procedure.
Abstract:
A communication scheme and system for converging a 5th generation (5G) communication system for supporting a data rate higher than that of a 4th generation (4G) system with an internet of things (IoT) technology, and a method and apparatus therefor are provided. The applicable to intelligent services (e.g., smart home, smart building, smart city, smart car, connected car, health care, digital education, retail, and security and safety-related services) based on the 5G communication technology and the IoT-related technology.
Abstract:
A pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-Generation (4G) communication system, such as long-term evolution (LTE), is disclosed. The system includes an apparatus of a base station. The apparatus may include: at least one transceiver, and at least one processor connected to the at least one transceiver, where the at least one processor is configured to transmit to a terminal, configuration information of reference signals for beam management regarding a transmit (Tx) beam of the BS or a receive (Rx) beam of the terminal, transmit the reference signals to the terminal, and the configuration information comprises information related to a number of repetitions of the reference signals.