Xinrui
Xinrui Feng, Beijing CN
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20140098783 | METHOD AND APPARATUS FOR HANDLING INTER-CELL INTERFERENCE - The present invention discloses a method including: obtaining downtilt coordination information of a local cell and downtilt coordination information of a neighbor cell; and setting, according to the downtilt coordination information of the local cell and the downtilt coordination information of the neighbor cell, a downtilt of a time-frequency resource block on an antenna of the local cell with respect to a to-be-coordinated user equipment. The downtilt coordination information of the local cell and that of the neighbor cell are referenced to for setting the downtilt of the time-frequency resource block on the antenna of the local cell with respect to the to-be-coordinated user equipment, which avoids interference on user equipments within a service range of the neighbor cell while ensuring signal received power and SINR experience for user equipments within a service range of the local cell. | 04-10-2014 |
20140128011 | ANTENNA SYSTEM AND SIGNAL TRANSMIT DEVICE - Embodiments of the present invention provide an antenna system that includes: at least one antenna unit group, wherein at least two antenna units are arranged in the vertical direction in each antenna unit group, and each antenna unit includes two antennas which are crosswise arranged, where carrier frequency signals transmitted by the at least one antenna unit group are identical, and a gap between adjacent antenna units which transmit any identical carrier frequency signal in each antenna unit group is a half wavelength of a frequency of the transmitted carrier frequency signal; and the number of antenna units which transmit each type of carrier frequency signals is determined by a gap between adjacent antenna units which transmit the type of carrier frequency signals and the coverage radii of at least two types of carrier frequency signals transmitted by the antenna unit group. | 05-08-2014 |
Xinrui Feng, Shenzhen CN
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20130064204 | METHOD, DEVICE AND SYSTEM FOR SIGNAL TRANSMISSION - A method, a device and a system for signal transmission are disclosed in embodiments of the present invention. The method comprises: selecting a multiplexing mode of signals to be transmitted by a cell according to interference strength received by the cell and/or interference strength received by a neighboring cell; notifying a receiver of the multiplexing mode of the signals to be transmitted by the cell; and transmitting the signals to be transmitted by the cell according to the multiplexing mode of the signals to be transmitted by the cell. Through the signal transmission method, device and system provided herein, the multiplexing mode is selected adaptively according to the interference strength. Therefore, the inter-cell interference is reduced, the reliability of channel detection is improved, the system complexity is reduced, and the cost is saved. | 03-14-2013 |
Xinrui Liu, Shenyang City CN
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20130054204 | AUTOMATIC THREE-PHASE UNBALANCED LOAD COMPENSATION EXPERIMENTAL DEVICE AND ITS CONTROL METHOD - Disclosed are an automatic three-phase unbalanced load compensation experimental device and its control method. The experimental device comprises an automatic compensation device, a load simulation part, and detection, display and control parts. The automatic compensation device comprises power capacitors and intelligent grouping compound switches; the detection, display and control part comprises current transformers, molded case circuit breakers, a three-phase digital display ammeter, a three-phase electric power monitoring instrument, a protocol conversion module, 485 buses, Ethernet cables and an upper computer; the load simulation part comprises phase A, B and C loads which are in star connection and are same in component and circuit connection, an analog output module and a relay output module. Power monitoring instrument and digital ammeter are connected to the grid by circuit breaker and current transformer. The automatic compensation device and load simulation part are connected to the grid in parallel. | 02-28-2013 |
20140297051 | ENERGY RESOURCE-GRID-LOAD AUTOMATIC CONTROL SYSTEM OF SMART MICROGRID AND CONTROL METHODS THEREOF - The present invention relates to an energy resource-grid-load automatic control system of smart microgrid and control methods thereof, which belong to the field of microgrid control and electrical technology. The energy resource-grid-load automatic control system comprises a distributed renewable energy power generation module, a distributed renewable energy inverter module, a conventional power generation module, a user load module, a bidirectional grid-connected control module, a distributed renewable energy intelligent optimizing power generation control module, an energy storage module, an intelligent energy storage unit adjuster and a storage battery pack. Compared with the conventional microgrid comprising a distributed renewable energy power generation system, the present invention guarantees the stability and the high energy utilization of the power generation system and effectively solves the problem of non-uniform frequency of use of storage batteries to unify the service life of the storage battery pack. | 10-02-2014 |
Xinrui Liu, Shengang City CN
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20130242617 | H-BRIDGE MICRO INVERTER GRID-CONNECTED DEVICE - An H-bridge micro inverter grid-connected device is invented to solve the problem that failure of any photovoltaic panel on the existing solar photovoltaic system cascade can cause efficiency reduction of the whole photovoltaic panel module. The H-bridge micro inverter grid-connected device comprises a single-chip microcomputer controller, a CPLD controller, a MOSFET full-bridge circuit, a high-frequency transformer, a half-bridge rectifying circuit, an SCR full-bridge circuit and a filter circuit, wherein the MOSFET full-bridge circuit is in the full-bridge type, the high-frequency transformer is a single-phase transformer with a central tap, and the SCR full-bridge circuit is applied. The integral structure above is characterized by the decreasing number of components, the reduction of power switches, and the simplification of the control circuits and driving circuits, so as to decrease the number of full-control switch components, improve the system reliability and reduce the system costs. | 09-19-2013 |