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    • 2. 发明授权
    • Apparatus and method for 4-beamforming using radio units having two paths in wireless communication system
    • 在无线通信系统中使用具有两条路径的无线电单元进行四波束成形的装置和方法
    • US08254997B2
    • 2012-08-28
    • US12657321
    • 2010-01-19
    • Sung-Man KimJun-Sung LeeSeong-Yong Park
    • Sung-Man KimJun-Sung LeeSeong-Yong Park
    • H04B1/38
    • H04B17/21
    • A base station is capable of performing 4-beamforming using Radio Units (RU), each having two paths in a wireless communication system. The base station includes a Digital Unit (DU), a first RU, and a second RU. The DU performs a mutual conversion function between an information bit line and a digital signal, calculates beamforming coefficients for 4-beamforming, and performs the 4-beamforming using the beamforming coefficients. The first RU has two Radio Frequency (RF) paths, extracts a clock signal from a digital signal from the DU, and provides the clock signal to the second RU. The second RU has two RF paths and operates according to the clock signal provided from the first RU.
    • 基站能够使用无线电单元(RU)来执行四波束成形,每个单元在无线通信系统中具有两条路径。 基站包括数字单元(DU),第​​一RU和第二RU。 DU在信息位线和数字信号之间执行相互转换功能,计算4波束成形的波束形成系数,并使用波束成形系数执行4波束成形。 第一RU具有两个射频(RF)路径,从DU的数字信号中提取时钟信号,并将时钟信号提供给第二RU。 第二RU具有两个RF路径,并且根据从第一RU提供的时钟信号进行操作。
    • 3. 发明授权
    • Apparatus and method for calibration for relay station in multiple antenna communication system
    • 多天线通信系统中继站校准装置及方法
    • US08457563B2
    • 2013-06-04
    • US12565296
    • 2009-09-23
    • Sung-Man KimMyung-Kwang ByunByung-Joon ParkSeong-Yong Park
    • Sung-Man KimMyung-Kwang ByunByung-Joon ParkSeong-Yong Park
    • H04B17/00
    • H04L25/0242
    • A calibration apparatus and method for supporting a Relay Station (RS) in a multiple antenna communication system are provided. The calibration method in the multiple antenna communication system which supports the RS includes, when a modem stage sends a downlink calibration signal, receiving, at a calibrator, the downlink calibration signal and estimating a downlink path channel, when the calibrator sends an uplink calibration signal, receiving, at the modem stage, the uplink calibration signal and estimating an uplink path channel, determining, at the modem stage, calibration coefficients per path not to generate a phase and amplitude difference with respect to the estimated uplink path channel and the estimated downlink path channel, and applying the calibration coefficients per path to corresponding antennas respectively.
    • 提供了一种用于在多天线通信系统中支持中继站(RS)的校准装置和方法。 支持RS的多天线通信系统中的校准方法包括当调制解调器级发送下行链路校准信号时,在校准器处接收下行链路校准信号并估计下行链路路径信道,当校准器发送上行链路校准信号 在调制解调器阶段接收上行链路校准信号并估计上行链路路径信道,在调制解调器阶段确定每个路径的校准系数不相对于估计的上行链路路径信道和估计的下行链路信道产生相位和幅度差 路径信道,并将每个路径的校准系数分别应用于相应的天线。
    • 5. 发明授权
    • Structure for protecting radio frequency remote head
    • 保护射频遥控头的结构
    • US08986087B2
    • 2015-03-24
    • US13500415
    • 2010-10-06
    • Ji-Hyeon ChoiSeong-Yong ParkHan-Seok KimJun-Sung Lee
    • Ji-Hyeon ChoiSeong-Yong ParkHan-Seok KimJun-Sung Lee
    • H05K5/00H04B1/03
    • H04B1/03
    • A structure is provided for protecting a Radio Frequency Remote Head (RRH). The structure includes a solar head and a solar body. An upper side of the solar head is sloped to prevent an inflow of rainwater and has at least one solar panel, and a lower side thereof has at least one round cable hole surrounded by a rubber material. The solar body is situated on a lower end of the solar head and includes a plurality of solar panels, a side of each of which is sloped to prevent an inflow of rainwater and is openable upward. An upper end of the solar body has an air outlet formed to exhaust air, and a lower end thereof has an air inlet formed to receive air. The air outlet and the air inlet each have a plurality of supports arranged at specific intervals and connected by a protection net.
    • 提供了一种用于保护射频远程头(RRH)的结构。 该结构包括太阳能头和太阳能体。 太阳能头的上侧倾斜以防止雨水流入,并且具有至少一个太阳能电池板,并且其下侧具有被橡胶材料包围的至少一个圆形电缆孔。 太阳能体位于太阳能头的下端并且包括多个太阳能电池板,每个太阳能电池板的一侧倾斜以防止雨水的流入并且可向上打开。 太阳能体的上端具有形成为排出空气的空气出口,其下端具有形成为接收空气的空气入口。 空气出口和空气入口各自具有以特定间隔布置的多个支撑件,并通过保护网连接。
    • 6. 发明申请
    • STRUCTURE FOR PROTECTING RADIO FREQUENCY REMOTE HEAD
    • 保护无线电频率远端的结构
    • US20120196522A1
    • 2012-08-02
    • US13500415
    • 2010-10-06
    • Ji-Hyeon ChoiSeong-Yong ParkHan-Seok KimJun-Sung Lee
    • Ji-Hyeon ChoiSeong-Yong ParkHan-Seok KimJun-Sung Lee
    • H05K5/00H04W16/26
    • H04B1/03
    • A structure is provided for protecting a Radio Frequency Remote Head (RRH). The structure includes a solar head and a solar body. An upper side of the solar head is sloped to prevent an inflow of rainwater and has at least one solar panel, and a lower side thereof has at least one round cable hole surrounded by a rubber material. The solar body is situated on a lower end of the solar head and includes a plurality of solar panels, a side of each of which is sloped to prevent an inflow of rainwater and is openable upward. An upper end of the solar body has an air outlet formed to exhaust air, and a lower end thereof has an air inlet formed to receive air. The air outlet and the air inlet each have a plurality of supports arranged at specific intervals and connected by a protection net.
    • 提供了一种用于保护射频远程头(RRH)的结构。 该结构包括太阳能头和太阳能体。 太阳能头的上侧倾斜以防止雨水流入,并且具有至少一个太阳能电池板,并且其下侧具有被橡胶材料包围的至少一个圆形电缆孔。 太阳能体位于太阳能头的下端并且包括多个太阳能电池板,每个太阳能电池板的一侧倾斜以防止雨水的流入并且可向上打开。 太阳能体的上端具有形成为排出空气的空气出口,其下端具有形成为接收空气的空气入口。 空气出口和空气入口各自具有以特定间隔布置的多个支撑件,并通过保护网连接。
    • 7. 发明申请
    • APPARATUS AND METHOD FOR NETWORK CONTROLLING IN WIRELESS COMMUNICATION SYSTEM
    • 无线通信系统网络控制的装置和方法
    • US20130250814A1
    • 2013-09-26
    • US13990231
    • 2011-11-30
    • Ji-Hyeon ChoiSun-Wook KimSeong-Yong ParkJun-Sung Lee
    • Ji-Hyeon ChoiSun-Wook KimSeong-Yong ParkJun-Sung Lee
    • H04L12/24
    • H04L41/0803H04L1/1692H04W40/08Y02D70/22Y02D70/324
    • An apparatus and a method for configuring a network in a terminal of a wireless communication system are provided. The network configuring method includes sending a reference message in a communication radius of the terminal; when receiving at least one ACKnowledge (ACK) message for the reference message, checking a node degree of each adjacent terminal which sends the ACK message, the node degree indicating the number of neighboring terminals of each adjacent terminal; forming an inner region and an outer region of the terminal based on an adjacent terminal of the greatest node degree among the adjacent terminals; determining a transmit power in the inner region and a transmit power in the outer region; and determining a final transmit power for configuring a network using the transmit power of the inner region and the transmit power of the outer region.
    • 提供了一种用于在无线通信系统的终端中配置网络的装置和方法。 网络配置方法包括在终端的通信半径中发送参考消息; 当接收到所述参考消息的至少一个确认(ACK)消息时,检查发送所述ACK消息的每个相邻终端的节点度,所述节点度表示每个相邻终端的相邻终端的数量; 基于相邻终端中最大节点度的相邻终端,形成终端的内部区域和外部区域; 确定所述内部区域中的发射功率和所述外部区域中的发射功率; 以及使用所述内部区域的发射功率和所述外部区域的发射功率来确定用于配置网络的最终发射功率。
    • 8. 发明申请
    • Duplex supporting apparatus and method of base station system using multi-antenna
    • 使用多天线的基站系统的双工支持设备和方法
    • US20080119232A1
    • 2008-05-22
    • US11983825
    • 2007-11-13
    • Hyo-Seon OhSeong-Yong Park
    • Hyo-Seon OhSeong-Yong Park
    • H04M1/00
    • H04B7/0491
    • Duplex supporting apparatus and method in a base station system which supports a multi-antenna are provided. The duplex supporting apparatus in a base station system which supports K(≧1)-ary sectors and M(≧1)-ary antennas per sector, includes a plurality of channel cards for generating M-ary data to be sent to the M-ary antennas, exchanging part of the M-ary data with other channel cards, constituting a frame with part of the M-ary data and data received from the other channel cards, and providing the generated frame to a corresponding Radio Frequency (RF) module; and a plurality of RF modules for extracting the M-ary data from a frame of a corresponding channel card among the channel cards, RF-processing the extracted M-ary data, and feeding the processed data to original sectors/antennas.
    • 提供了一种支持多天线的基站系统中的双工支持装置和方法。 在每个扇区支持K(> = 1)个扇区和M(> = 1)个天线的基站系统中的双工支持装置包括多个信道卡,用于产生要发送到 将M-ary数据与其他通道卡交换一部分M-ary数据,构成一部分M-ary数据的帧和从其他通道卡接收的数据,并将生成的帧提供给相应的射频(RF )模块; 以及多个RF模块,用于从信道卡中的对应信道卡的帧中提取M数据,对所提取的M数据进行RF处理,以及将处理的数据馈送到原始扇区/天线。
    • 9. 发明授权
    • Method for preparing lithium manganese spinel oxide having improved electrochemical performance
    • 制备具有改善的电化学性能的锂锰尖晶石氧化物的方法
    • US06929788B2
    • 2005-08-16
    • US09913428
    • 2000-12-15
    • Hong-Kyu ParkSeong-Yong ParkKi-Young LeeJoon-Sung Bae
    • Hong-Kyu ParkSeong-Yong ParkKi-Young LeeJoon-Sung Bae
    • C01G45/12C01G45/00H01M4/505H01M10/05C01G45/02
    • H01M4/505C01G45/1242C01P2002/32C01P2004/03C01P2004/51C01P2004/53C01P2006/40
    • The present invention relates to a method for preparing a lithium manganese complex oxide Li1+xMn2−xO4 (0≦x≦0.12) used as a cathode active material of a lithium or lithium ion secondary battery.The present invention provides a method for preparing a manganese compound comprising the step of simultaneously applying a mechanical force and heat energy to a manganese compound to remove defects present in particles of the manganese compound and to control the aggregation of particles and the shape of the aggregated particles, a method for preparing a lithium manganese complex oxide with a spinel structure using the manganese compound prepared by the above method as a raw material, and a lithium or lithium ion secondary battery using the lithium manganese complex oxide with a spinel structure prepared by the above method as a cathode active material.A lithium or lithium ion secondary battery using the lithium manganese complex oxide with a spinel structure prepared from the manganese compound without defects inside particles as a cathode active material has excellent charge/discharge characteristics and cyclic performance.
    • 本发明涉及一种锂锰复合氧化物Li 1 + x 2 O 2-x O 4(0≤x≤0.4)的制备方法, <= 0.12)用作锂或锂离子二次电池的正极活性物质。 本发明提供一种锰化合物的制备方法,包括同时向锰化合物施加机械力和热能以除去锰化合物颗粒中存在的缺陷并控制颗粒的聚集和聚集的形状的步骤 颗粒,使用通过上述方法制备的锰化合物作为原料制备具有尖晶石结构的锂锰复合氧化物的方法,以及使用具有尖晶石结构的锂锰复合氧化物的锂或锂离子二次电池,其由尖晶石结构 作为阴极活性物质。 使用由锰化合物制备的具有尖晶石结构的锂锰复合氧化物的锂或锂离子二次电池在颗粒内没有缺陷作为正极活性材料具有优异的充电/放电特性和循环性能。