专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20180191537A1 DPD SYSTEM 审中-公开
公开(公告)号：US20180191537A1
公开(公告)日：2018-07-05
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： H04L25/49 , H04B1/04 , H04B1/00
CPC分类号： H04L25/4927 , H04B1/005 , H04B1/0475 , H04B1/62 , H04L25/03343
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.

2. 发明授权

US09445375B2 Method and system for updating predistortion coefficient 有权
标题翻译：更新预失真系数的方法和系统
公开(公告)号：US09445375B2
公开(公告)日：2016-09-13
申请号：US14760710
申请日：2013-12-30
申请人： DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD
发明人： Jun Xiong , Tao Duan , Huarong Sun , Peng Xiao , Ce Wang , Jieli Wang
IPC分类号： H03F1/32 , H04B1/04 , H04W52/24 , H04W52/16 , H04W52/52 , H04L25/03 , H04L25/49 , H03F3/24 , H03F3/19
CPC分类号： H04W52/243 , H03F1/3241 , H03F1/3247 , H03F1/3258 , H03F3/19 , H03F3/245 , H03F2201/3233 , H04B1/0475 , H04L25/03343 , H04L25/49 , H04W52/16 , H04W52/52
摘要： The invention is a method and a system for updating pre-distortion coefficients, which is used to solve the problem of interference with neighbor cells due to the inferior pre-distortion coefficients. The method includes: presetting a primary table and a standby table, which store default and updated pre-distortion coefficients respectively; when a data source of a pre-distortion processor adopts the standby table, adopting the updated pre-distortion coefficients to perform parameter output processing to acquire pre-distortion parameters, and conveying the pre-distortion parameters and an input signal to the pre-distortion processor to process to acquire pre-distortion signals; conveying the pre-distortion signals through various signal processors to acquire a first signal, and determining the power data of the first signal; and based on the comparing result of the power data of the first signal and a setting range, there are different actions.
摘要翻译：本发明是用于更新预失真系数的方法和系统，其用于解决由于较差的预失真系数而导致的相邻小区的干扰问题。该方法包括：分别存储默认和更新的预失真系数的主表和备用表; 当预失真处理器的数据源采用待机表时，采用更新的预失真系数进行参数输出处理以获取预失真参数，并将预失真参数和输入信号传送到预失真处理器来处理以获取预失真信号; 通过各种信号处理器传送预失真信号以获取第一信号，以及确定第一信号的功率数据; 并且基于第一信号的功率数据与设定范围的比较结果，存在不同的动作。

3. 发明授权

US09647717B2 Digital pre-distortion parameter obtaining method and pre-distortion system 有权
公开(公告)号：US09647717B2
公开(公告)日：2017-05-09
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 , H04L25/49 , H04B1/04 , H04L27/36 , H03F1/32
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).

4. 发明授权

US09497059B2 Method for performing peak clipping to multiple carrier waves and device thereof 有权
标题翻译：用于对多个载波进行峰值削波的方法及其装置
公开(公告)号：US09497059B2
公开(公告)日：2016-11-15
申请号：US14916204
申请日：2014-08-28
申请人： DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD
发明人： Jun Xiong , Yanhui He , Huarong Sun , Tao Duan , Jieli Wang , Ce Wang
IPC分类号： H04L27/26 , H04B1/04 , H04L5/00
CPC分类号： H04L27/2623 , H03F1/02 , H03F3/24 , H04B1/0475 , H04B2001/045 , H04L5/001 , H04L5/0092 , H04L27/2614 , H04L27/2624 , H04L27/2626
摘要： The disclosure discloses a method and device for performing peak clipping to multiple carrier waves, the method includes: according to carrier wave number of configured multiple carrier waves, signal bandwidth and occupied bandwidth of each carrier wave, obtaining total signal bandwidth and total occupied bandwidth of the corresponding carrier waves; according to the total signal bandwidth and the total occupied bandwidth of the multiple carrier waves, generating a digital filter with set order, and obtaining filter coefficient of the digital filter; taking the filter coefficient as a peak clipping coefficient and using the peak clipping coefficient to perform peak clipping to the peak-to-average ratio signals of the carrier waves. By the disclosure, the complexity of the generation of the peak clipping coefficient is simplified, the deterioration degree of EVM is reduced, and the distortion degree of signals is also reduced.
摘要翻译：本发明公开了一种对多载波进行峰值削波的方法和装置，该方法包括：根据配置的多载波的载波数，信号带宽和每个载波的占用带宽，获得总信号带宽和总占用带宽相应的载波; 根据总信号带宽和多载波总占用带宽，产生具有设置顺序的数字滤波器，并获得数字滤波器的滤波器系数; 将滤波器系数作为峰值削波系数，并使用峰值削波系数对载波的峰值平均比率信号执行峰值削波。通过该公开，简化了峰值削波系数的产生的复杂度，降低了EVM的劣化程度，并且信号的失真度也降低。

5. 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.

6. 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。

7. 发明申请

US20150358039A1 DIGITAL PREDISTORTION PROCESSING METHOD AND SYSTEM 有权
标题翻译：数字预处理方法与系统
公开(公告)号：US20150358039A1
公开(公告)日：2015-12-10
申请号：US14761362
申请日：2013-12-25
申请人： DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD
发明人： Jun Xiong , Yongli Zhang , Bin Xue
IPC分类号： H04B1/04 , H04B1/62 , H04L25/49
CPC分类号： H04B1/0475 , H03F1/3247 , H04B1/62 , H04B2001/0433 , H04L25/49 , H04L27/368
摘要： A digital predistortion processing method and system comprises extracting from a predistortion coefficient parameter table a predistortion parameter corresponding to an input signal, so as to predistort the input signal and obtain a forward transmission signal; amplifying the power of the forward transmission signal to obtain an output signal; acquiring the output signal to obtain a feedback signal; delaying a predetermined number of sampling points so as to acquire the forward transmission signal and obtain a reference signal; conducting synchronization-related calculation on the reference signal and the feedback signal, and calibrating the feedback signal; training a predistortion coefficient according to the reference signal and the calibrated feedback signal; and forming the predistortion coefficient parameter table according to the predistortion coefficient and the amplitude of the input signal. The present invention can delay a predetermined number of sampling points for a transmission signal, thus greatly improving radio frequency index (ACPR).
摘要翻译：一种数字预失真处理方法和系统，包括从预失真系数参数表提取与输入信号对应的预失真参数，以预失真输入信号并获得正向传输信号; 放大正向传输信号的功率以获得输出信号; 获取输出信号以获得反馈信号; 延迟预定数量的采样点，以获取正向传输信号并获得参考信号; 对参考信号和反馈信号进行同步相关计算，并校准反馈信号; 根据参考信号和校准反馈信号训练预失真系数; 并根据输入信号的预失真系数和振幅形成预失真系数参数表。本发明可以延迟传输信号的预定数量的采样点，从而大大提高射频指数（ACPR）。

8. 发明授权

US10291448B2 Multi-carrier superposition method and device 有权
公开(公告)号：US10291448B2
公开(公告)日：2019-05-14
申请号：US15515214
申请日：2015-09-21
申请人： DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD.
发明人： Jun Xiong , Huarong Sun , Bin Xue , Jieli Wang , Jintao Chen , Pengpeng Zhang , Bin Zhang
IPC分类号： H04L5/00 , H04L5/02 , H04L27/18 , H04L27/26
摘要： Disclosed are a multi-carrier superposition method and device. First, input carrier signals are superposed, and gain reduction processing is conducted during the superposition process, and then CFR processing and increase processing are conducted on the superposed carrier signals. Thus, under the circumstance of multi-carrier superposition, it can be effectively ensured that signals cannot overflow, and meanwhile the requirement for precision of a system during processing is met.

9. 发明授权

US09450621B2 Digital predistortion processing method and system 有权
标题翻译：数字预失真处理方法与系统
公开(公告)号：US09450621B2
公开(公告)日：2016-09-20
申请号：US14761362
申请日：2013-12-25
申请人： DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD
发明人： Jun Xiong , Yongli Zhang , Bin Xue
IPC分类号： H04B1/04 , H03F1/32 , H04B1/62 , H04L25/49
CPC分类号： H04B1/0475 , H03F1/3247 , H04B1/62 , H04B2001/0433 , H04L25/49 , H04L27/368
摘要： A digital predistortion processing method and system comprises extracting from a predistortion coefficient parameter table a predistortion parameter corresponding to an input signal, so as to predistort the input signal and obtain a forward transmission signal; amplifying the power of the forward transmission signal to obtain an output signal; acquiring the output signal to obtain a feedback signal; delaying a predetermined number of sampling points so as to acquire the forward transmission signal and obtain a reference signal; conducting synchronization-related calculation on the reference signal and the feedback signal, and calibrating the feedback signal; training a predistortion coefficient according to the reference signal and the calibrated feedback signal; and forming the predistortion coefficient parameter table according to the predistortion coefficient and the amplitude of the input signal. The present invention can delay a predetermined number of sampling points for a transmission signal, thus greatly improving radio frequency index (ACPR).
摘要翻译：一种数字预失真处理方法和系统，包括从预失真系数参数表提取与输入信号对应的预失真参数，以预失真输入信号并获得正向传输信号; 放大正向传输信号的功率以获得输出信号; 获取输出信号以获得反馈信号; 延迟预定数量的采样点，以获取正向传输信号并获得参考信号; 对参考信号和反馈信号进行同步相关计算，并校准反馈信号; 根据参考信号和校准反馈信号训练预失真系数; 并根据输入信号的预失真系数和振幅形成预失真系数参数表。本发明可以延迟传输信号的预定数量的采样点，从而大大提高射频指数（ACPR）。

10. 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。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式