Ntt Docomo, Inc.

China Institute of Water Resources and Hydropower Research

Boe Technology Group Co., Ltd.

Beijing Boe Sensor Technology Co., Ltd.

North China Electric Power University

Nit Docomo, Inc.

Yongsheng Zhang

Qun Zhao

Yongbo Zeng

Satoshi Nagata

Hiroki Harada

Shimpei Yasukawa

Xin Xia

Xiaobo Liu

Yixue Lei

Weijie Wang

Fei Dong

Xuekai Chen

Wenqi Peng

Hirohito Suda

Xuecheng Hou

Xiaoli Wang

Katsutoshi Kusume

Jianxing Shang

Zhao Liu

Jiawei Wang

Weiping Pan

Yongzheng Gu

The present invention relates to a water flow measuring drifting buoy capable of preventing stranding and resisting impact, which includes: a ball-game table-shaped inflation body with a counterweight capable of drifting autonomously in a direction of a main stream of a water flow, wherein the inflation body is provided with at least two inflation connectors, and the inflation connectors are of a cross-shaped structure formed by connecting in a conical distribution with 4 inflation-stabilizing rods uniformly distributed along a circumferential radiation; the counterweight is 4-10 fan-shaped steel plates arranged annularly in the center of the bottom of the inflation body, and the fan-shaped steel plates are flexibly connected to each other to be able to shake. The ball-game table structure used in the present invention is selected by comparing various shapes to push a buoy to the middle of a river where the water flow is turbulent by using the difference in a water flow speed to prevent the water flow from being stranded where the water flow is slow or being blocked by a rock at a river bank so as not to continue the drift. The steel plate of the cross-shaped structure in the fan-shaped distribution is used, so that the buoy can be turned up and continue to drift once it has fallen to the ground, greatly improving the efficiency of drift.

Water flow measuring drifting buoy capable of preventing stranding and resisting impact

Disclosed are a flat panel detector and a manufacturing method thereof. The flat panel detector including: a first optical assembly, having a first side and a second side opposite to the first side in a thickness direction of the flat panel detector, and including: a first scintillator layer configured for converting at least part of rays into a first visible light; and a first light guide component stacked with the first scintillator layer and configured for guiding the first visible light; a first image sensor assembly stacked with the first optical assembly, configured for receiving the first visible light, and including: a first image sensor located at the first side of the first optical assembly; and a second image sensor located at the second side of the first optical assembly.

Flat panel detector and manufacturing method thereof

A user apparatus in a mobile communication system includes an allocation means that divides a message that includes control information and data into a plurality of partial messages, and allocates resources included in one or more resource pools to the plurality of partial messages; and a transmission means that transmits the plurality of partial messages using the resources allocated by the allocation means.

User apparatus, and transmission method

The present invention relates to a device, a system and a method for monitoring river flow velocity based on differential pressure measurement, comprising: a hull floating on a water surface with an aspect ratio of the hull being greater than one, characterized in that pressure sensors are respectively provided on an upstream face of a front end and a downstream face of a rear end below the floatation line of a ship; an electronic instrument is provided in the hull, and the electronic instrument comprises an acquisition module connected to the two pressure sensors, the acquisition module being connected to a data processing module with a memory, and the data processing module being connected to a satellite positioning module and a wireless communication module. According to the present invention, the flow velocity of water flow is measured based on the difference between the simulated measured upstream face pressure at the bow and the simulated measured downstream face pressure at the stern by an unpowered measuring ship drifting on the water surface. The measured data is transmitted to the data processing center on the ground via the wireless communication network. The present invention enables the flow data to be measured in presence of poor satellite positioning signals and public network signals or no signals, achieving data transmission independent of satellite positioning and public communication networks.

Device, system and method for monitoring river flow velocity based on differential pressure measurement

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.

User apparatus, base station, discovery signal reception method and discovery signal transmission method

A user apparatus is provided. The user apparatus is used in a mobile communication system in which D2D communications are supported. The user apparatus includes an obtaining unit configured to obtain from a base station control rules including predetermined communication methods applied to corresponding user apparatus types; a determination unit configured to determine which of the predetermined communication methods is to be applied to the user apparatus by comparing a type of the user apparatus and the control rules; and a transmission unit configured to transmit a D2D signal based on the determined predetermined communication method.

User apparatus, mobile communication system and communication control method

User apparatus and transmission method

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.

Radio base station, user terminal and radio communication method

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.

Mercury removal system for coal-fired power plant

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 (#) 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 (#) receives the signal format information from the user terminal (#), and, based on the signal format represented by the signal format information, detects the discovery signal.

User terminal and inter-terminal communication method

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.

Transmission power control method and base station

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.

User terminal, radio communication system and radio communication method

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.

Distance estimation method, transmission power control method, user apparatus, and base station

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.

User apparatus and collision detection method

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.

Growing community of inventors

Beijing, China

Yongsheng Zhang