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    • 4. 发明公开
    • MIMO RELAY DEVICE
    • MIMO-RELAISVORRICHTUNG
    • EP2892165A1
    • 2015-07-08
    • EP12883733.3
    • 2012-12-27
    • MTI Co. , Ltd.Cho, Hyung-SikKisan Telecom Co. Ltd.
    • CHO, Hyung-SikEEM, Ki-HoPARK, Byung-gi
    • H04B7/14H04B7/04
    • H04B7/1555H04B7/026H04B7/0413H04B7/15507
    • Provided is a multiple input multiple output (MIMO) relay apparatus for effectively relaying MIMO signals applied to a multiple access type wireless communication system, such as a long term evolution (LTE) communication system. A transmission channel matrix between service antennas and the terminal is made as 2 X 2, MIMO signals of the base station or repeater are transmitted to the service antennas by using one cable, and two or more transceivers (or referred to as a downward/upward signal amplification unit) are disposed in the relay apparatus so as to form two or more paths in one cable, and a frequency down part and a frequency up part of at least one transceiver between two or more transceivers are separated from each other and are implemented at a donor connected to the base station or repeater in a wired or wireless manner and a service antenna so that two or more different independent paths can be formed in one cable. Also, according to an embodiment of the present invention, no backward path exists in the MIMO paths so that a manufacturing cost of the relay apparatus can be reduced.
    • 提供了一种用于有效中继应用于诸如长期演进(LTE)通信系统的多址型无线通信系统的MIMO信号的多输入多输出(MIMO)中继装置。 服务天线和终端之间的传输信道矩阵为2×2,基站或中继器的MIMO信号通过使用一条电缆和两个或更多个收发器(或称为向下/向上 信号放大单元)设置在中继装置中,以便在一个电缆中形成两个或更多个路径,并且两个或更多个收发器之间的至少一个收发器的降频部分和上升部分彼此分离并被实现 在以有线或无线方式连接到基站或中继器的提供商和服务天线,使得可以在一个电缆中形成两个或更多个不同的独立路径。 此外,根据本发明的实施例,MIMO路径中不存在反向路径,从而可以减少中继装置的制造成本。
    • 5. 发明申请
    • INTERFERENCE CANCELLATION REPEATER AND METHOD FOR USING FEEDFORWARD/FEEDBACK SIGNAL SEARCH AND FEEDBACK CANCELLATION WINDOW DIVISION
    • 干扰消除重复器和使用反馈/反馈信号搜索和反馈消除窗口部分的方法
    • WO2009020326A1
    • 2009-02-12
    • PCT/KR2008/004519
    • 2008-08-04
    • KTFREETEL CO., LTD.RHO, Wi SangLEE, Hee JunCHO, Hyung SikYOU, Sung Sang
    • RHO, Wi SangLEE, Hee JunCHO, Hyung SikYOU, Sung Sang
    • H04B7/14
    • H04B7/15585
    • The present invention relates to a method of searching for feedforward signals and feedback signals and dividing a feedback cancellation window and an interference cancellation repeater using the method, in which only feedback signals other than feedforward signals are cancelled by an interference cancellation repeater, thus preventing the degradation in the quality of a source signal. A repeater for canceling interference attributable to a feedback signal according to the present invention includes a window setting unit (40) for searching an RF signal, which is received through a reception antenna and includes the intra-repeater feedback signal and an inter-repeater feedback signal, for a feedback signal by moving a feedback cancellation window, and dividing a feedback cancellation window (Xtot) on a basis of the feedback signal. A feedback signal cancellation unit (48) cancels the feedback signal from the received RF signal on a basis of the feedback cancellation window.
    • 本发明涉及一种搜索前馈信号和反馈信号的方法,并且使用这样的方法来划分反馈消除窗口和干扰消除中继器,其中除了前馈信号之外的反馈信号仅由干扰消除中继器消除,从而防止 源信号质量下降。 根据本发明的用于消除归因于反馈信号的干扰的中继器包括用于搜索通过接收天线接收的RF信号的窗口设置单元(40),并且包括中继器内反馈信号和中继器间反馈 信号,用于通过移动反馈消除窗口来反馈信号,并且基于反馈信号划分反馈消除窗口(Xtot)。 反馈信号消除单元(48)基于反馈消除窗口从接收到的RF信号中消除反馈信号。
    • 6. 发明申请
    • METHOD FOR MOBILE COMMUNICATION SERVICE USING DEDICATED FREQUENCY AND APPARATUS THEREOF
    • 使用专用频率的移动通信服务的方法及其装置
    • WO2006080693A1
    • 2006-08-03
    • PCT/KR2005/003297
    • 2005-10-06
    • KTFREETEL CO., LTD.OH, Young-MinCHO, Hyung-SikCHOI, Byoung-JinCHOI, Jun-Gu
    • OH, Young-MinCHO, Hyung-SikCHOI, Byoung-JinCHOI, Jun-Gu
    • H04B1/59
    • H04W16/26H04B7/2606
    • The present invention is directed to a method and device for mobile communication service, more specifically to a method and device for mobile communication service using a dedicated frequency. The method for providing mobile communication service, in which a dedicated frequency conversion unit utilizes a dedicated frequency in a predetermined area, based on a preferred embodiment of the subject invention, comprises the acts of receiving a signal of said dedicated frequency transmitted from said dedicated frequency base station, corresponding a signal of common frequency to a signal of said received dedicated frequency, and transmitting a signal of said corresponded common signal, wherein mobile communication terminals can receive a signal of said common frequency from said dedicated frequency conversion unit in said predetermined area and make a transition to a dedicated frequency bandwidth. According to the present invention, a separate, dedicated frequency can be used in a particular area or building, where PN pollution is severe, to prevent PN pollution from occurring and provide a relatively interference-free, high quality mobile communication service.
    • 本发明涉及一种用于移动通信业务的方法和装置,更具体地涉及一种使用专用频率的移动通信业务的方法和装置。 基于本发明的优选实施例,提供移动通信业务的方法,其中专用频率转换单元利用预定区域中的专用频率,包括接收从所述专用频率发送的所述专用频率的信号的动作 基站,对应于所述接收到的专用频率的信号的公共频率的信号,并发送所述对应的公共信号的信号,其中移动通信终端可以在所述预定区域中从所述专用频率转换单元接收所述公共频率的信号 并转换到专用频率带宽。 根据本发明,在PN污染严重的特定区域或建筑物中可以使用单独的专用频率,以防止发生PN污染并提供相对无干扰的高质量移动通信服务。
    • 8. 发明申请
    • DEVICE AND METHOD FOR MEASURING RECEIVE SENSITIVITY OF COMMUNICATION SYSTEM INCLUDING RECEIVE-ONLY PATH
    • 用于测量通信系统的接收灵敏度的设备和方法,包括接收路径
    • WO2004091124A1
    • 2004-10-21
    • PCT/KR2004/000521
    • 2004-03-12
    • KTFREETEL CO. LTD.OH, Young-MinJANG, Ki-TaegCHO, Hyung-SikSHIN, Hyung-Sup
    • OH, Young-MinJANG, Ki-TaegCHO, Hyung-SikSHIN, Hyung-Sup
    • H04B17/00
    • H04W24/00H04B7/0825H04B17/20H04B17/29
    • Disclosed is a device (200) and a method for measuring a receive sensitivity of a communication system having a transmit and receive path and a receive-only path, like a base station (100) employing space diversity by means of one transmit and receive antenna (111) and an additional receive antenna (121). A terminal (220) is connected to the transmit and receive path and to the receive-only path by means of a first (112) and a second coupler (122) and a first (213a) and a second transmitter (215a) whereby the input signals are combined by a combiner (211) to a single signal fed to the terminal (220). Furthermore, the terminal (220) selectively transmits a test signal at selected frequencies to a receive sensitivity measuring path by means of a first (212) and a second (214) switch and a first (213b) and a second (215b) receiver in order to measure the receive sensitivities of the transmit and receive path and the receive-only path of the communication system and to measure the performance of the corresponding communication system.
    • 公开了一种用于测量具有发射和接收路径和仅接收路径的通信系统的接收灵敏度的装置(200)和方法,例如通过一个发射和接收天线采用空间分集的基站(100) (111)和附加的接收天线(121)。 终端(220)通过第一(112)和第二耦合器(122)和第一(213a)和第二发射器(215a)连接到发射和接收路径以及仅接收路径,由此, 输入信号由组合器(211)组合到馈送到终端(220)的单个信号。 此外,终端(220)通过第一(212)和第二(214)开关以及第一(213b)和第二(215b)接收机选择性地将所选频率的测试信号传输到接收灵敏度测量路径 为了测量通信系统的发送和接收路径和只接收路径的接收灵敏度,并测量相应通信系统的性能。