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1. 发明授权

US11277182B2 Hybrid beam forming architecture-based calibration compensation method and apparatus 有权
公开(公告)号：US11277182B2
公开(公告)日：2022-03-15
申请号：US17435919
申请日：2020-03-04
申请人： DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD.
发明人： Jingyan Ma , Shihua Wang , Tao Duan , Jian Wu , Yongli Zhang
IPC分类号： H04B7/06
摘要： The present application relates to the field of communications, and in particular to a hybrid beam forming architecture-based calibration compensation method and apparatus for improving the accuracy and effectiveness of calibration compensation. The method comprises: a base station determining a preset calibration weight vector matrix W and a preset first calibration signal matrix S, then transmitting N times consecutively calibration signals through analog transmission channels, calculating, according to the calibration weight vector matrix W, the first calibration signal matrix S and a first received data vector matrix YTX, a transmission channel error matrix ETX, and then performing error compensation on the analog transmission channels based on ETX.

2. 发明授权

US10091037B2 DPD system 有权
公开(公告)号：US10091037B2
公开(公告)日：2018-10-02
申请号：US15738799
申请日：2016-06-16
申请人： Datang Mobile Communications Equipment Co., Ltd.
发明人： Jun Xiong , Peng Xiao , Jieli Wang , Tao Duan
IPC分类号： H04L27/00 , H04L25/49 , H04L25/03 , H04B1/00 , H04B1/04 , H04B1/62
摘要： Disclosed is a DPD system. A DPD system provided in an embodiment of the present invention includes a table look-up unit and a DPD processing unit. First to Nth look-up-tables are used to combine two bit sequences of bit sequences obtained according to first to fourth address conversion tables so as to obtain first to Nth table look-up addresses. First to Nth DPD coefficients are found according to the first to Nth table look-up addresses, and one DPD coefficient is obtained via a DPD coefficient combination module, such that the DPD processing unit can perform DPD processing on a signal in first band according to the DPD coefficient. In the embodiment of the present invention, a look-up address is obtained according to four address conversion tables, a DPD coefficient is obtained from a look-up-table according to the look-up address, and then a final DPD coefficient is obtained to perform signal processing. Thereby, a look-up address generation solution is provided for a multi-band DPD system to realize multi-band DPD processing.

3. 发明申请

US20160329927A1 DIGITAL PRE-DISTORTION PARAMETER OBTAINING METHOD AND PRE-DISTORTION SYSTEM 有权
标题翻译：数字预失真参数获取方法和预失真系统
公开(公告)号：US20160329927A1
公开(公告)日：2016-11-10
申请号：US15108108
申请日：2014-12-24
申请人： DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD
发明人： Jun Xiong , Xinmin Wang , Tao Duan , Jingyi Wang
IPC分类号： H04B1/62 , H03F3/24 , H03F1/32 , H04B1/04
CPC分类号： H04B1/62 , H03F1/3241 , H03F1/3247 , H03F1/3258 , H03F3/24 , H03F3/245 , H03F2200/198 , H03F2201/3209 , H03F2201/3224 , H03F2201/3227 , H03F2201/3233 , H04B1/04 , H04B1/0475 , H04B2001/0416 , H04B2001/0425 , H04L25/49 , H04L27/367 , H04L27/368
摘要： The present application relates to the field of digital pre-distortion processing. Disclosed in an embodiment of the present application are a pre-distortion parameter obtaining method and pre-distortion system for simplifying calculating complexity of a model while achieving good signal processing effect. The method comprises: after the beginning of periodic filtering processing, obtaining a pre-distorted signal after pre-distortion processing and a first feedback signal after power amplification (S101); obtaining a second feedback signal by eliminating the rated linear gain of the first feedback signal (S102); determining a pre-distortion parameter according to a matrix formed by the second feedback signal and a matrix formed by the pre-distorted signal (S103); updating the pre-distortion parameter index table according to the determined pre-distortion parameter (104).
摘要翻译：本申请涉及数字预失真处理领域。在本申请的实施例中公开了一种用于在实现良好的信号处理效果的同时简化模型的计算复杂度的预失真参数获取方法和预失真系统。该方法包括：在周期性滤波处理开始之后，在预失真处理之后获得预失真信号和功率放大后的第一反馈信号（S101）; 通过消除第一反馈信号的额定线性增益来获得第二反馈信号（S102）; 根据由所述第二反馈信号形成的矩阵和由所述预失真信号形成的矩阵来确定预失真参数（S103）; 根据确定的预失真参数（104）更新预失真参数索引表。

4. 发明授权

US10185334B2 Method and device for detecting temperature of radio remote unit 有权
公开(公告)号：US10185334B2
公开(公告)日：2019-01-22
申请号：US14760709
申请日：2013-12-30
申请人： DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD
发明人： Xiaoyu Lei , Tao Duan , Huarong Sun , Liqiang Xing
IPC分类号： G05D23/19 , G05F1/66 , H04W52/02
摘要： The present application provides a method and device for detecting temperature of a radio remote unit, to solve the problem that an RRU could be damaged due to an excessively high temperature. The method includes: acquiring temperature data of a radio remote unit; configuring power data of the radio remote unit according to the temperature data, when the temperature data is less than a temperature threshold or within the temperature threshold; and closing radio frequency channel(s) of the radio remote unit when the temperature data is more than the temperature threshold.

5. 发明授权

US09960862B2 Method and device for detecting standing-wave ratio 有权
公开(公告)号：US09960862B2
公开(公告)日：2018-05-01
申请号：US15507818
申请日：2015-08-27
申请人： Datang Mobile Communications Equipment Co., Ltd.
发明人： Shihua Wang , Tao Duan , Bin Xue , Jieli Wang
IPC分类号： H04B17/10 , H04B17/18 , H04B17/11 , H04W88/08
CPC分类号： H04B17/103 , H04B17/11 , H04B17/18 , H04W88/08
摘要： Disclosed are a method and device for detecting a standing-wave ratio, which are used for realizing quick and accurate detection of the standing-wave ratio by only using a downlink service signal transmitted by a TD-LTE base station system, thereby preventing a special training sequence from causing additional interference to the base station system. The method comprises: capturing output power detection data (OPD) of a service signal transmitted by the base station system and reflection power detection data (RPD) of a device to be detected in a base station; within a first preset bandwidth range, respectively extracting feedback signals of the OPD and feedback signals of the RPD within a plurality of periods of time according to a preset data length; determining spectrum characteristics of the feedback signals of the OPD and spectrum characteristics of the feedback signals of the RPD respectively corresponding to each period of time, and determining the reflection coefficient of the base station system according to the spectrum characteristics of the feedback signals of the OPD and the spectrum characteristics of the feedback signals of the RPD respectively corresponding to each period of time; and determining the standing-wave ratio of the base station system within the first preset bandwidth range according to the reflection coefficient of the base station system.

6. 发明申请

US20170310402A1 METHOD AND DEVICE FOR DETECTING STANDING-WAVE RATIO 有权
公开(公告)号：US20170310402A1
公开(公告)日：2017-10-26
申请号：US15507818
申请日：2015-08-27
申请人： Datang Mobile Communications Equipment Co., Ltd.
发明人： Shihua Wang , Tao Duan , Bin Xue , Jieli Wang
IPC分类号： H04B17/10 , H04B17/11 , H04B17/18 , H04W88/08
CPC分类号： H04B17/103 , H04B17/11 , H04B17/18 , H04W88/08
摘要： Disclosed are a method and device for detecting a standing-wave ratio, which are used for realizing quick and accurate detection of the standing-wave ratio by only using a downlink service signal transmitted by a TD-LTE base station system, thereby preventing a special training sequence from causing additional interference to the base station system. The method comprises: capturing output power detection data (OPD) of a service signal transmitted by the base station system and reflection power detection data (RPD) of a device to be detected in a base station; within a first preset bandwidth range, respectively extracting feedback signals of the OPD and feedback signals of the RPD within a plurality of periods of time according to a preset data length; determining spectrum characteristics of the feedback signals of the OPD and spectrum characteristics of the feedback signals of the RPD respectively corresponding to each period of time, and determining the reflection coefficient of the base station system according to the spectrum characteristics of the feedback signals of the OPD and the spectrum characteristics of the feedback signals of the RPD respectively corresponding to each period of time; and determining the standing-wave ratio of the base station system within the first preset bandwidth range according to the reflection coefficient of the base station system.

7. 发明授权

US09231733B2 Method and system for updating multi-frequency-band pre-distortion coefficient lookup table 有权
标题翻译：更新多频段预失真系数查询表的方法和系统
公开(公告)号：US09231733B2
公开(公告)日：2016-01-05
申请号：US14646733
申请日：2013-07-17
申请人： DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD
发明人： Jun Xiong , Tao Duan , Huarong Sun , Peng Xiao
IPC分类号： H04L25/49 , H04L1/00 , H04L25/03 , H04L27/26
CPC分类号： H04L1/0043 , H03F1/3241 , H03F1/3247 , H03F3/245 , H04L1/0036 , H04L25/03159 , H04L25/03343 , H04L25/49 , H04L27/2646 , H04L27/367
摘要： Disclosed are a method and a system for updating a multi-frequency band pre-distortion coefficient lookup table, in order to solve the problems that the calculation complexity is high. Wherein, the method comprises: collecting a first frequency band reference signal and a first frequency band feedback signal, a second frequency band reference signal and a second frequency band feedback signal; calculating a first frequency band pre-distortion coefficient and a second frequency band pre-distortion coefficient; performing phase calibration on the first frequency band pre-distortion coefficient and the second frequency band pre-distortion coefficient, respectively; and updating a first lookup table according to the first frequency band pre-distortion coefficient performed the phase calibration, and updating a second lookup table according to the second frequency band pre-distortion coefficient performed the phase calibration.
摘要翻译：公开了一种用于更新多频带预失真系数查找表的方法和系统，以便解决计算复杂度高的问题。其中，所述方法包括：收集第一频带参考信号和第一频带反馈信号，第二频带参考信号和第二频带反馈信号; 计算第一频带预失真系数和第二频带预失真系数; 分别对第一频带预失真系数和第二频带预失真系数执行相位校准; 以及根据执行相位校准的第一频带预失真系数更新第一查找表，以及根据执行相位校准的第二频带预失真系数更新第二查找表。

8. 发明申请

US20140314135A1 VECTOR SIGNAL ANALYZER 审中-公开
标题翻译：矢量信号分析仪
公开(公告)号：US20140314135A1
公开(公告)日：2014-10-23
申请号：US14358723
申请日：2012-10-22
申请人： DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD
发明人： Tao Duan , Xiaoyu Lei , Hongwei Wang
IPC分类号： H04B17/00
CPC分类号： G01R23/16 , H04B17/0085 , H04B17/309
摘要： Disclosed in the present invention is a vector signal analyzer, which relates to communication technology. The vector signal analyzer comprises: a radio frequency front end splitting module, for splitting the received signals to at least, two signals; an analog signal processing module, for performing radio frequency/micro wave processing and analog-digital conversion for each signal separately; a digital signal processing module, fir performing spectrum analyze and signal demodulation analyze separately for each digital signals, which are outputted from the analog signal processing module. With the present invention, the received signals are divided into at least two signals by the radio frequency front end splitting module, and radio frequency/micro wave processing and analog-digital conversion are performed for each signal separately, then spectrum analyze and signal demodulation analyze are performed by digital signal processing module separately for each signal, thereby spectrum measurement function and signal demodulation analyze function are realized simultaneity, and the synchronization of each of analyze results gets better, so that it is convenient to compare and analyze by operators.
摘要翻译：在本发明中公开了一种与通信技术有关的矢量信号分析器。矢量信号分析器包括：射频前端分离模块，用于将接收的信号分成至少两个信号; 模拟信号处理模块，用于分别对每个信号执行射频/微波处理和模数转换; 数字信号处理模块，对从模拟信号处理模块输出的每个数字信号分别进行频谱分析和信号解调分析。利用本发明，通过射频前端分割模块将接收到的信号分成至少两个信号，分别对每个信号执行射频/微波处理和模数转换，然后进行频谱分析和信号解调分析由数字信号处理模块分别对每个信号执行，从而同时实现频谱测量功能和信号解调分析功能，每个分析结果的同步性更好，便于操作员比较和分析。

9. 发明授权

US11171417B2 Method and apparatus for calibrating antenna 有权
公开(公告)号：US11171417B2
公开(公告)日：2021-11-09
申请号：US17265360
申请日：2019-07-24
申请人： DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD.
发明人： Jingyan Ma , Shihua Wang , Tao Duan , Jian Wu , Jieli Wang
IPC分类号： H01Q3/26 , H04B17/12 , H01Q3/38 , H04B17/19 , H01Q1/24 , H01Q21/22 , H04B17/21 , G01R29/10 , H04B7/06 , H04B7/08
摘要： Disclosed in the present application are a method and an apparatus for calibrating an antenna. In the method, in a receiving channel calibration process, first a receiving channel beam weight matrix is initially updated by using a receiving calibration signal from a reference beam direction, i.e., performing initial receiving channel calibration, and then, for different beam direction regions, beam weight vectors corresponding to multiple beam directions within particular beam direction regions are updated.

10. 发明授权

US10200095B2 Data transmission method, apparatus and antenna array 有权
公开(公告)号：US10200095B2
公开(公告)日：2019-02-05
申请号：US15755059
申请日：2016-07-21
申请人： DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD.
发明人： Huarong Sun , Tao Duan , Suling Zou , Jinxi Su , Huijuan Ni
IPC分类号： H04B7/04 , H04B7/0452 , H04B1/00
摘要： Disclosed in the present invention are a data transmission method, an apparatus and an antenna array, in order to realize wide bandwidth data transmission of massive antenna array. The data transmission method comprises: baseband IQ data of multiple CA is grouped via IR data interface module to obtain baseband IQ data of each CA group; for baseband IQ data of each CA group: the baseband IQ data with enhanced data rate of the CA group is up-converted to digital intermediate frequency band by a digital up-conversion module; the digital intermediate frequency signals of the CA group are superposed by a combiner to form a multi-carrier digital intermediate frequency signal; in accordance with the amplitude and phase requirements of each antenna in a group of antenna sharing the multi-carrier digital intermediate frequency signal, the amplitude and phase of the multi-carrier digital intermediate frequency signal are respectively adjusted and transmitted to a digital to analog converter of a corresponding antenna channel; a multi-carrier analog intermediate frequency signal is generated by the digital to analog converter of each antenna channel, and then is transmitted to the corresponding antenna channel.

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