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公开(公告)号：US08891671B2
公开(公告)日：2014-11-18
申请号：US13788036
申请日：2013-03-07
Applicant: Huawei Technologies Co., Ltd.
Inventor： Shaoming Li
Abstract: A method for calibrating a channel which includes: performing slide-window correlation on a delayed downlink service signal of a current transmit channel and a feedback signal of the transmit channel, and performing sampling to obtain a group of correlation values of the transmit channel in a sliding window; determining a peak amplitude value among amplitude values of the group of correlation values in the sliding window, and amplitude values at two points that are left adjacent and right adjacent to a point corresponding to the peak amplitude value; performing an interpolation operation on the peak amplitude value and the amplitude values at the two points that are left adjacent and right adjacent to the point to obtain an amplitude value, a delay and a phase at an actual peak point in the group of correlation values of the transmit channel in the sliding window; and calibrating the transmit channel.
Abstract translation: 一种用于校准信道的方法，包括：对当前发送信道的延迟下行链路业务信号和发送信道的反馈信号进行滑窗相关，并执行采样以获得发送信道的相关值组 滑动窗 确定所述滑动窗口中的所述相关值组的振幅值之间的峰值振幅值，以及在与所述峰值振幅值对应的点相邻且相邻的两个点处的振幅值; 对与该点相邻且相邻的两个点处的峰值振幅值和振幅值进行插值运算，以获得相关值组中的振幅值，实际峰值点的延迟和相位 滑动窗口中的发射通道; 并校准发射信道。
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2.发明申请公开(公告)号：US20130237161A1
公开(公告)日：2013-09-12
申请号：US13870183
申请日：2013-04-25
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Hu Zhao , Liqiong Zhang , Shaoming Li , Jianjun Chen
IPC: H04B3/54
CPC classification number: H04B3/544 , H04W88/085
Abstract: Embodiments of the present invention disclose a method and an apparatus for transmitting a CPRI signal by means of a coaxial line. The method includes: converting a Common Public Radio Interface CPRI signal sent by a sending end into a parallel data stream; extracting valid data from the data stream by performing frame parsing; and converting the valid data into a transmittable analog signal, modulating the analog signal to a specified frequency, and sending it to a receiving end by means of a coaxial line. The present invention applies to transmission of a CPRI signal by means of a coaxial line.
Abstract translation: 本发明的实施例公开了一种通过同轴线路发送CPRI信号的方法和装置。 该方法包括：将发送端发送的公共无线电接口CPRI信号转换为并行数据流; 通过执行帧解析从数据流中提取有效数据; 并将有效数据转换成可传输模拟信号，将模拟信号调制到指定频率，并通过同轴线将其发送到接收端。 本发明适用于通过同轴线路传输CPRI信号。
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3.发明授权公开(公告)号：US08923759B2
公开(公告)日：2014-12-30
申请号：US13870183
申请日：2013-04-25
Applicant: Huawei Technologies Co., Ltd.
Inventor： Hu Zhao , Liqiong Zhang , Shaoming Li , Jianjun Chen
CPC classification number: H04B3/544 , H04W88/085
Abstract: Embodiments of the present invention disclose a method and an apparatus for transmitting a CPRI signal by means of a coaxial line. The method includes: converting a Common Public Radio Interface CPRI signal sent by a sending end into a parallel data stream; extracting valid data from the data stream by performing frame parsing; and converting the valid data into a transmittable analog signal, modulating the analog signal to a specified frequency, and sending it to a receiving end by means of a coaxial line. The present invention applies to transmission of a CPRI signal by means of a coaxial line.
Abstract translation: 本发明的实施例公开了一种通过同轴线路发送CPRI信号的方法和装置。 该方法包括：将发送端发送的公共无线电接口CPRI信号转换为并行数据流; 通过执行帧解析从数据流中提取有效数据; 并将有效数据转换成可传输模拟信号，将模拟信号调制到指定频率，并通过同轴线将其发送到接收端。 本发明适用于通过同轴线路传输CPRI信号。
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