Apparatus and method for changing communication mode in multi-antenna system considering channel environment
    1.
    发明授权
    Apparatus and method for changing communication mode in multi-antenna system considering channel environment 有权
    考虑通道环境改变多天线系统通信模式的装置和方法

    公开(公告)号:US08140122B2

    公开(公告)日:2012-03-20

    申请号:US12660432

    申请日:2010-02-26

    IPC分类号: H04B1/38 H04M1/00

    摘要: An apparatus and a method for determining a multi-antenna transmission mode at a base station in a multi-antenna system are provided. The method for determining the multi-antenna transmission mode includes when using a Multiple Input Multiple Output (MIMO) transmission mode as a multi-antenna transmission mode, determining a reference set point; updating a set point for transmit power control of a terminal according to an error occurrence of a signal received from the terminal; determining whether a channel to the terminal is a channel for applying the MIMO transmission mode by comparing the updated set point with the reference set point; and when the channel to the terminal is not a channel for applying the MIMO transmission mode, changing the multi-antenna transmission mode to a fixed transmission mode.

    摘要翻译: 提供了一种用于在多天线系统中的基站处确定多天线传输模式的装置和方法。 用于确定多天线传输模式的方法包括当使用多输入多输出(MIMO)传输模式作为多天线传输模式时,确定参考设定点; 根据从终端接收的信号的错误发生更新终端的发射功率控制的设定点; 确定到所述终端的信道是否是通过将所述更新的设定点与所述参考设定点进行比较来应用所述MIMO传输模式的信道; 并且当到终端的信道不是用于应用MIMO传输模式的信道时,将多天线传输模式改变为固定传输模式。

    Apparatus and method for changing communication mode in multi-antenna system considering channel environment
    2.
    发明申请
    Apparatus and method for changing communication mode in multi-antenna system considering channel environment 有权
    考虑通道环境改变多天线系统通信模式的装置和方法

    公开(公告)号:US20100215088A1

    公开(公告)日:2010-08-26

    申请号:US12660432

    申请日:2010-02-26

    IPC分类号: H04B17/00 H04K1/10

    摘要: An apparatus and a method for determining a multi-antenna transmission mode at a base station in a multi-antenna system are provided. The method for determining the multi-antenna transmission mode includes when using a Multiple Input Multiple Output (MIMO) transmission mode as a multi-antenna transmission mode, determining a reference set point; updating a set point for transmit power control of a terminal according to an error occurrence of a signal received from the terminal; determining whether a channel to the terminal is a channel for applying the MIMO transmission mode by comparing the updated set point with the reference set point; and when the channel to the terminal is not a channel for applying the MIMO transmission mode, changing the multi-antenna transmission mode to a fixed transmission mode.

    摘要翻译: 提供了一种用于在多天线系统中的基站处确定多天线传输模式的装置和方法。 用于确定多天线传输模式的方法包括当使用多输入多输出(MIMO)传输模式作为多天线传输模式时,确定参考设定点; 根据从终端接收的信号的错误发生更新终端的发射功率控制的设定点; 确定到所述终端的信道是否是通过将所述更新的设定点与所述参考设定点进行比较来应用所述MIMO传输模式的信道; 并且当到终端的信道不是用于应用MIMO传输模式的信道时,将多天线传输模式改变为固定传输模式。

    Apparatus and method for calibration for relay station in multiple antenna communication system
    3.
    发明授权
    Apparatus and method for calibration for relay station in multiple antenna communication system 有权
    多天线通信系统中继站校准装置及方法

    公开(公告)号:US08457563B2

    公开(公告)日:2013-06-04

    申请号:US12565296

    申请日:2009-09-23

    IPC分类号: H04B17/00

    CPC分类号: H04L25/0242

    摘要: 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.

    摘要翻译: 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。

    METHOD FOR RECEIVING SIGNAL IN COMMUNICATION SYSTEM AND SYSTEM THEREFOR
    4.
    发明申请
    METHOD FOR RECEIVING SIGNAL IN COMMUNICATION SYSTEM AND SYSTEM THEREFOR 有权
    用于在通信系统中接收信号的方法及其系统

    公开(公告)号:US20080182543A1

    公开(公告)日:2008-07-31

    申请号:US12020162

    申请日:2008-01-25

    IPC分类号: H04B1/10

    CPC分类号: H04B1/1027

    摘要: Disclosed is a method for receiving a signal by a receiver in a communication system, the method includes receiving a signal; estimating a first noise value by using a reference signal included in the received signal; estimating a second noise value by using at least one subcarrier which has been unused for a transmission of data and the reference signal; and when a difference between the estimated first noise value and the estimated second noise value is greater than a threshold value, demodulating the data by using an interference removal algorithm.

    摘要翻译: 公开了一种在通信系统中由接收机接收信号的方法,该方法包括:接收信号; 通过使用包括在接收信号中的参考信号来估计第一噪声值; 通过使用未被用于数据传输和参考信号的至少一个子载波来估计第二噪声值; 并且当估计的第一噪声值和估计的第二噪声值之间的差大于阈值时,通过使用干扰去除算法对数据进行解调。

    Method for receiving signal in communication system and system therefor
    5.
    发明授权
    Method for receiving signal in communication system and system therefor 有权
    通信系统中接收信号的方法及其系统

    公开(公告)号:US07885631B2

    公开(公告)日:2011-02-08

    申请号:US12020162

    申请日:2008-01-25

    IPC分类号: H04B1/10 H04B1/16

    CPC分类号: H04B1/1027

    摘要: Disclosed is a method for receiving a signal by a receiver in a communication system, the method includes receiving a signal; estimating a first noise value by using a reference signal included in the received signal; estimating a second noise value by using at least one subcarrier which has been unused for a transmission of data and the reference signal; and when a difference between the estimated first noise value and the estimated second noise value is greater than a threshold value, demodulating the data by using an interference removal algorithm.

    摘要翻译: 公开了一种在通信系统中由接收机接收信号的方法,该方法包括:接收信号; 通过使用包括在接收信号中的参考信号来估计第一噪声值; 通过使用未被用于数据传输和参考信号的至少一个子载波来估计第二噪声值; 并且当估计的第一噪声值和估计的第二噪声值之间的差大于阈值时,通过使用干扰去除算法对数据进行解调。