Abstract: A transmission power control method in a mobile communication system including a user apparatus and a base station is provided. The method enables the base station to control transmission power of a discovery signal of the user apparatus. The method includes estimating a number of the user apparatuses transmitting discovery signals by monitoring the discovery signals transmitted from the user apparatuses, by referring to power class setting information which associates the number of the user apparatuses transmitting the discover signals with a power class used for determining transmission power information of the discovery signal in the user apparatus, determining the power class associated with the number of the estimate user apparatuses, and transmitting the determined power class to the user apparatus.

Abstract: A distance estimation method for, by causing a first user apparatus to receive a discovery signal from a second user apparatus, estimating a distance between the first user apparatus and the second user apparatus is provided. The distance estimation method includes a step of receiving from the second user apparatus the discovery signal including transmission power information of the discovery signal, a step of obtaining the transmission power information from the discovery signal, and a step of estimating the distance between the first user apparatus and the second user apparatus from receive power information of the discovery signal at the first user apparatus and the transmission power information.

Abstract: Aerial vehicles are provided with one or more transformable arms (110, 310, 410, 510, 910). The one or more transformable arms (110, 310, 410, 510, 910) may support one or more propulsion units, and transform between a flight configuration where the propulsion units of the arms effect flight of the aerial vehicle, and a landing configuration, wherein the transformable arms (110, 310, 410, 510, 910) are used as a landing support that bears weight of the aerial vehicle when the aerial vehicle is not in flight. Using the transformable arms (110, 310, 410, 510, 910) as legs when the UAV is in a landed state permits the UAV to reduce weight and reduce obstruction to a payload carried by the UAV when the UA is in flight.

Abstract: User equipment for receiving a discovery signal to be used for inter-user equipment discovery includes a discovery signal receiver that receives the discovery signal transmitted, within a resource pool for transmitting the discovery signal, from any other user equipment; a collision detector that detects collision of discovery signals; and a reporting unit that reports a detected result of the collision to a base station.

Abstract: A user apparatus is provided. The user apparatus includes a cyclic prefix length detection unit configured to detect a cyclic prefix length used by a user apparatus of a neighbor cell or out of coverage; and an interference detection unit configured to detect interference caused by a cyclic prefix length difference, a synchronization timing difference, or collision of resources used for signal transmission. Further, a base station is provided. The base station includes a reception unit configured to receive from a user apparatus an interference result caused by a cyclic prefix length difference; a resource allocation unit configured to set resources based on the received interference result; and a transmission unit configured to transmit the set resource information to the user apparatus.

Abstract: A transmission power control method in a mobile communication system including a user apparatus and a base station is provided. The method enables the base station to control transmission power of a discovery signal of the user apparatus. The method includes estimating a number of the user apparatuses transmitting discovery signals by monitoring the discovery signals transmitted from the user apparatuses, by referring to power class setting information which associates the number of the user apparatuses transmitting the discover signals with a power class used for determining transmission power information of the discovery signal in the user apparatus, determining the power class associated with the number of the estimate user apparatuses, and transmitting the determined power class to the user apparatus.

Abstract: The present disclosure relates to a wire connector, and a power supply assembly and an aerial vehicle using the wire connector. The aerial vehicle comprises a support frame, and a power supply assembly and a plurality of rotor assemblies arranged on the support frame. The rotor assemblies are electrically connected with the power supply assembly. The power supply assembly comprises a circuit board, a power source, wires electrically connected with the power source, and wire connectors arranged on the circuit board. The wires each comprise a conductive portion. The wire connectors each comprise a conductive member, a movable member, and an adjusting member. The movable member is arranged facing the conductive member. The conductive portion is located between the movable member and the conductive member. The adjusting member is arranged on the conductive member and penetrates through the conductive portion and the movable member.

Abstract: A user apparatus that transmits and receives a discovery signal, including: collision detection means that detects a collision in a received discovery signal; collision notification means that, when a collision of a received discovery signal is detected by the collision detection means, transmits collision information indicating that a collision occurs in the received discovery signal; collision information reception means that receives collision information; and collision determination means that determines whether a collision occurs in a transmitted discovery signal transmitted by the user apparatus based on the collision information received by the collision information reception means.

Abstract: To enable a user terminal that receives a discovery signal of another user terminal for performing Type 1 discovery to synthesize and receive the discovery signal, a user terminal capable of executing inter-terminal direct signal transmission/reception has a selecting section that selects a discovery signal transmission resource at the next period for each period, and a transmission section that transmits information on the discovery signal transmission resource at the next period, together with the discovery signal.

Abstract: To reduce interference (in-band emission) to PUCCH by an inter-terminal discovery signal when the PUCCH and inter-terminal discovery signal are subjected to frequency division multiplexing, a user terminal of the present invention performs frequency division multiplexing on the PUCCH and the inter-terminal discovery signal to transmit. Further, the user terminal of the invention is provided with a reception section that receives limited resource region information indicative of a limited resource region obtained by removing an adjacent region of a frequency resource region where the PUCCH is allocated from a radio base station, a determining section that determines a distance between the radio base station and the user terminal, and a selecting section that selects an allocation resource of the inter-terminal discovery signal from the limited resource region when the determining section determines that the distance is relatively close.

Abstract: A resin composition containing the reaction product of a 5-hydroxymethyl furfural (HMF) produced in-situ from e.g., glucose and a phenolic compound. Phenolic compounds include phenol, cardanol and bio-phenol. The resin is heat-curable using cross-linking agents such as tetraethylammonium chloride or lignin, etc.

Abstract: Provided are a method and vector computing unit for implementing de-scrambling and de-spreading, and a computer storage medium. The method includes that: an operation of complex multiplication on baseband data and corresponding de-scrambling and de-spreading codes is performed by adopting data transformation and addition, and data obtained by the complex multiplication is stored into a vector register file; a row of data obtained by the complex multiplication is read from the vector register file, every two adjacent pieces of data in the row of data are accumulated to obtain a half row of data, a ¼ row of data, and finally one piece of accumulated data; and the accumulation processing is continued on other rows of data to implement accumulation of each row of data obtained by the complex multiplication in the vector register file.

Abstract: The present invention is designed so that, in a radio communication system in which inter-terminal communication is carried out, the impact of inter-symbol interference due to the delay of inter-terminal discovery signals is reduced. The radio communication method of the present invention is used in a radio communication system in which each user terminal transmits the inter-terminal discovery signal in a transmission duration of a predetermined period. A radio base station determines the cyclic prefix (CP) length configuration for use in the transmission duration, and transmits cyclic prefix (CP) length configuration information which represents the CP length configuration. Each user terminal transmits the inter-terminal discovery signal based on the CP length configuration information.

Abstract: The present invention is designed so that, when a plurality of inter-terminal discovery signals with varying numbers of information bits are used in a radio communication system in which inter-terminal communication is carried out, user terminals can be discovered based on the inter-terminal discovery signals. According to the inter-terminal communication method of the present invention, a user terminal (#1) determines the signal format of a discovery signal based on the number of information bits of the discovery signal, transmits the discovery signal based on the signal format, and also transmits signal format information to represent this signal format. A user terminal (#2) receives the signal format information from the user terminal (#1), and, based on the signal format represented by the signal format information, detects the discovery signal.

Abstract: A data transmission method and system, related to the field of communication, resolve the problem of data transmission in a software defined radio (SDR) system. The method includes: a data path mapping data received from an RFC to a preset unified time reference, then collecting data and caching the data obtained from collection; after the data path caches the data obtained from the collection, an event table generating a downlink data processing event, and scheduling a vector processor to perform downlink data processing. The technical solution provided in the embodiments of the present document is applied to the SDR and achieves the data transmission at high utilization rate.

Abstract: The disclosure provides a mercury removal system for a coal-fired power plant comprising: a mercury content monitoring system configured to monitor a mercury concentration in flue gas; a fly ash collecting device configured to collect fly ash from an electrostatic precipitator in the coal-fired power plant; a modifying device configured to be supplied with the collected fly ash and prepare a mercury sorbent from the fly ash; a sorbent injector configured to inject the mercury sorbent into flues of the coal-fired power plant so as to mix and contact with the flue gas in the flue and adsorb the elemental mercury in the flue gas. Thus, the concentration of the mercury pollutant emission is decreased.

Abstract: A user apparatus, for use in a radio communication system including a base station forming a cell, configured to receive a discovery signal of device-to-device communication, including: an information reception unit configured to receive, from a base station of a residing cell, a resource range in which a discovery signal can be transmitted in a neighbor cell; and a discovery signal reception unit configured to receive a discovery signal at a time position that is synchronized with the neighbor cell in response to receiving a synchronization signal that is synchronized with the neighbor cell within the resource range received by the information reception unit.

Abstract: A user apparatus that transmits and receives a discovery signal, including: collision detection means that detects a collision in a received discovery signal; collision notification means that, when a collision of a received discovery signal is detected by the collision detection means, transmits collision information indicating that a collision occurs in the received discovery signal; collision information reception means that receives collision information; and collision determination means that determines whether a collision occurs in a transmitted discovery signal transmitted by the user apparatus based on the collision information received by the collision information reception means.

Abstract: The present invention discloses a method and a device for discovering a UE, a first UE and a base station. The method for discovering a UE comprises the steps of: monitoring, by a first UE, an uplink signal in a mobile communication system; extracting, by the first UE, first information for identifying a UE that is to be discovered and that transmits the uplink signal from the monitored uplink signal; transmitting, by the first UE, a monitoring report message carrying the first information to a base station, acquiring, by the first UE, the device ID of the UE to be discovered in accordance with the monitoring report response message and completing the discovery process of the UE. According to the present invention, it is able to discover the UE without changing a channel system of an existing system and occupying time-frequency resources of the system.

Abstract: A distance estimation method for, by causing a first user apparatus to receive a discovery signal from a second user apparatus, estimating a distance between the first user apparatus and the second user apparatus is provided. The distance estimation method includes a step of receiving from the second user apparatus the discovery signal including transmission power information of the discovery signal, a step of obtaining the transmission power information from the discovery signal, and a step of estimating the distance between the first user apparatus and the second user apparatus from receive power information of the discovery signal at the first user apparatus and the transmission power information.