专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明申请

WO2014178487A1 APPARATUS AND METHOD FOR ENVELOPING TRACKING CALIBRATION 审中-公开
标题翻译：用于加强跟踪校准的装置和方法
公开(公告)号：WO2014178487A1
公开(公告)日：2014-11-06
申请号：PCT/KR2013/008318
申请日：2013-09-13
申请人： SAMSUNG ELECTRONICS CO., LTD.
发明人： ZHANG, Yaming , INTERRANTE, John Alex , LOH, Lup Meng , HURLEY, William
IPC分类号： H04B7/005 , H04B17/00
CPC分类号： H04L27/368 , H04B17/13
摘要： An apparatus for envelope tracking calibration for use in a wireless communication is provided. The apparatus includes a transmission signal path configured to carry a transmission signal to an antenna. An envelope signal path configured to feed an envelope signal with an envelope tracking power amplifier. A controller is configured to transmit a normal envelope signal being generated in a normal operation mode and measure a first Adjacent Channel Leakage Ratio (ACLR) corresponding to the normal envelope signal. The controller is further configured to transmit a comparison envelope signal being generated in a comparison operation mode and measure a second ACLR corresponding to the comparison envelope signal. The controller is configured to calculate a time misalignment between the transmission signal path and the envelope signal path based on a difference between the first and second ACLRs.
摘要翻译：提供了一种用于无线通信中的用于信封跟踪校准的装置。该装置包括被配置为将传输信号传送到天线的传输信号路径。包络信号路径被配置为用包络跟踪功率放大器馈送包络信号。控制器被配置为发送在正常操作模式中生成的正常包络信号，并且测量与正常包络信号相对应的第一相邻信道泄漏比（ACLR）。控制器还被配置为发送在比较操作模式中生成的比较包络信号，并测量对应于比较包络信号的第二ACLR。控制器被配置为基于第一和第二ACLR之间的差来计算发送信号路径和包络信号路径之间的时间偏移。

12. 发明申请

WO2014161778A1 QUADRATURE POWER AMPLIFIER HAVING INCREASED EFFICIENCY 审中-公开
标题翻译：具有提高效率的功率放大器
公开(公告)号：WO2014161778A1
公开(公告)日：2014-10-09
申请号：PCT/EP2014/056262
申请日：2014-03-28
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： MU, Fenghao , OLSSON, Thomas , MATTISSON, Sven
IPC分类号： H04L27/36 , H03F1/02 , H04B1/04 , H03F3/24
CPC分类号： H04L27/362 , H03C1/00 , H03C1/06 , H03C3/40 , H03C2200/0058 , H03F1/0222 , H03F1/0227 , H03F3/24 , H03F2200/336 , H03F2200/451 , H04B1/0475 , H04B2001/0416 , H04L27/361 , H04L27/368
摘要： A method and system for achieving increased efficiency in a quadrature modulated power amplifier (11) are disclosed. In some embodiments, a supply path (36, 40) and a gain path (38, 42) are provided in each of an I-channel and a Q-channel. The supply path (36, 40) produces a variable voltage and the gain path (38, 42) produces a gain control signal. The variable voltage and gain control signal are used by a variable gain power amplifier (44, 46) to modulate a local oscillator signal to produce a modulated radio signal.
摘要翻译：公开了一种在正交调制功率放大器（11）中实现提高效率的方法和系统。在一些实施例中，在I信道和Q信道中的每一个中提供供应路径（36,40）和增益路径（38,42）。供给路径（36,40）产生可变电压，并且增益路径（38,42）产生增益控制信号。可变电压和增益控制信号由可变增益功率放大器（44,46）用于调制本地振荡器信号以产生调制的无线电信号。

13. 发明申请

WO2013190395A2 MULTI-MODE TRANSMITTER FOR HIGHLY-SPECTRALLY-EFFICIENT COMMUNICATIONS 审中-公开
标题翻译：用于高分辨率通信的多模发射机
公开(公告)号：WO2013190395A2
公开(公告)日：2013-12-27
申请号：PCT/IB2013/002081
申请日：2013-06-14
申请人： MAGNACOM LTD.
发明人： ELIAZ, Amir
IPC分类号： H04L29/06
CPC分类号： H04L1/0041 , G06F11/10 , H04B1/0475 , H04B1/10 , H04B1/16 , H04B1/709 , H04B17/0085 , H04B17/15 , H04B17/29 , H04B2001/0416 , H04L1/0036 , H04L1/0048 , H04L1/005 , H04L1/0054 , H04L1/203 , H04L1/206 , H04L7/0058 , H04L7/0087 , H04L7/02 , H04L7/042 , H04L23/02 , H04L25/0236 , H04L25/03006 , H04L25/03038 , H04L25/03057 , H04L25/03178 , H04L25/03197 , H04L25/03267 , H04L25/0328 , H04L25/03305 , H04L25/03318 , H04L25/03337 , H04L25/03343 , H04L25/03834 , H04L25/03885 , H04L25/03949 , H04L25/08 , H04L27/00 , H04L27/01 , H04L27/02 , H04L27/04 , H04L27/2278 , H04L27/36 , H04L27/366 , H04L27/368 , H04L27/38 , H04L2025/03369
摘要： A transmitter may comprise a symbol mapping circuit that is configurable to operate in at least two configurations, wherein a first of the configurations of the symbol mapping circuit uses a first symbol constellation and a second of the configurations of the symbol mapping circuit uses a second symbol constellation. The transmitter may also comprise a pulse shaping circuit that is configurable to operate in at least two configurations, wherein a first of the configurations of the pulse shaping circuit uses a first set of filter taps and a second of the configurations of the pulse shaping circuit uses a second set of filter taps. The first set of filter taps may correspond to a root raised cosine (RRC) filter and the second set of filter taps corresponds to a partial response filter.
摘要翻译：发射机可以包括可配置为以至少两种配置操作的符号映射电路，其中符号映射电路的第一配置使用第一符号星座，并且符号映射电路的配置中的第二配置使用第二符号星座。发射机还可以包括脉冲整形电路，其可被配置为以至少两种配置工作，其中脉冲整形电路的第一种配置使用第一组滤波器抽头，并且脉冲整形电路的第二种配置使用第二组滤波器抽头。第一组滤波器抽头可以对应于根升余弦（RRC）滤波器，并且第二组滤波器抽头对应于部分响应滤波器。

14. 发明申请

WO2013093340A3 METHOD FOR TRANSMITTING AT LEAST ONE MULTI-CARRIER SIGNAL CONSISTING OF OFDM-OQAM SYMBOLS 审中-公开
标题翻译：用于发送包含OFDM-OQAM符号的至少一个多载波信号的方法
公开(公告)号：WO2013093340A3
公开(公告)日：2013-12-19
申请号：PCT/FR2012052995
申请日：2012-12-19
申请人： ORANGE
发明人： SIOHAN PIERRE , JAHAN BRUNO , PHAN HUY DINH THUY , HELARD MARYLINE , DUBOIS THIERRY
IPC分类号： H04L27/26 , H04B7/06 , H04L1/06 , H04L27/36
CPC分类号： H04L27/2698 , H04B7/0669 , H04L1/0668 , H04L27/2626 , H04L27/264 , H04L27/368
摘要： The invention relates to a method for transmitting at least one multi-carrier signal consisting of OFDM-OQAM signals to a receiving antenna of a receiving device, wherein said transmission method is to be implemented by a transmitting device comprising at least one transmitting antenna, the transmitting method including, for each transmitting antenna of the transmitting device: a step of filtering OFDM-OQAM symbols associated with said transmitting antenna by a time reversal pre-filter defined in accordance with an estimation of a transmission channel between said transmitting antenna and the receiving antenna; and a step of transmitting the filtered OFDM-OQAM symbols via said transmitting antenna over the transmission channel.
摘要翻译：本发明涉及一种用于将由OFDM-OQAM信号组成的至少一个多载波信号发射到接收设备的接收天线的方法，其中所述发射方法将由包括至少一个发射天线的发射设备来实现，发送方法，包括：针对发送设备的每个发送天线：通过根据所述发送天线与接收之间的传输信道的估计而定义的时间反转预滤波器，对与所述发送天线相关联的OFDM-OQAM符号进行滤波的步骤天线; 以及通过传输信道经由所述发送天线发送滤波后的OFDM-OQAM符号的步骤。

15. 发明申请

WO2013158173A1 METHODS AND SYSTEMS FOR CALIBRATING A FREQUENCY-DIVISION DUPLEXING TRANSCEIVER 审中-公开
标题翻译：用于校准频分双工收发器的方法和系统
公开(公告)号：WO2013158173A1
公开(公告)日：2013-10-24
申请号：PCT/US2013/022793
申请日：2013-01-23
申请人： QUALCOMM INCORPORATED
发明人： ZARGARI, Masoud , ABDOLLAHI-ALIBEIK, Shahram
IPC分类号： H04B1/50 , H04B17/00
CPC分类号： H04L5/14 , H04B1/50 , H04B17/11 , H04B17/14 , H04B17/21 , H04L27/368
摘要： A frequency-division duplexing (FDD) transceiver includes a first mixer to up-convert a transmit signal and a first switch, coupled to the first mixer, to selectively provide a transmit local oscillator signal or a receive local oscillator signal to the first mixer. The transmit local oscillator signal has a first frequency and the receive local oscillator signal has a second frequency distinct from the first frequency. The FDD transceiver also includes a second mixer to down-convert a receive signal and a second switch, coupled to the second mixer, to selectively provide the transmit local oscillator signal or the receive local oscillator signal to the second mixer.
摘要翻译：频分双工（FDD）收发器包括耦合到第一混频器的发送信号上变频的第一混频器和第一开关，以选择性地向第一混频器提供发送本地振荡器信号或接收本地振荡器信号。发送本地振荡器信号具有第一频率，并且接收本地振荡器信号具有与第一频率不同的第二频率。 FDD收发器还包括第二混频器以对接收信号进行下变频和耦合到第二混频器的第二开关，以选择性地向第二混频器提供发送本地振荡器信号或接收本地振荡器信号。

16. 发明申请

WO2013136226A1 ARCHITECTURE AND THE TRAINING METHOD OF A PA DPD SYSTEM WITH SPACE MAPPING APPLIED IN THE PREDISTORTER 审中-公开
标题翻译：建筑与PA DPD系统的训练方法与空间映射应用于预测器
公开(公告)号：WO2013136226A1
公开(公告)日：2013-09-19
申请号：PCT/IB2013/051754
申请日：2013-03-05
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： BAI, Chunlong
IPC分类号： H03F1/32 , H04L27/36
CPC分类号： H03F1/3247 , H03F2201/3227 , H04L27/368
摘要： Systems and methods are disclosed for compensating for non-linearity of a power amplifier using space mapping based predistortion. In one embodiment, a transmitter includes a power amplifier that amplifies a power amplifier input signal, a predistorter that effects predistortion of the power amplifier input signal to compensate for a non-linear characteristic of the power amplifier using a space mapping based model of an inverse of the non-linear characteristic of the power amplifier, and an adaptation sub-system that adaptively configures the space mapping based model of the non-linear characteristic of the power amplifier. In one embodiment, the adaptation sub-system adaptively configures a space mapping based model of the non-linear characteristic of the power amplifier and adaptively configures the space mapping based model of the inverse of the non-linear characteristic of the power amplifier based on the space mapping based model of the non-linear characteristic of the power amplifier.
摘要翻译：公开了用于补偿使用基于空间映射的预失真的功率放大器的非线性度的系统和方法。在一个实施例中，发射机包括放大功率放大器输入信号的功率放大器，预失真器，其利用功率放大器输入信号的预失真来补偿功率放大器的非线性特性，使用基于空间映射的反相模型功率放大器的非线性特性的自适应子系统，以及自适应地配置基于功率放大器的非线性特性的基于空间映射的模型的自适应子系统。在一个实施例中，自适应子系统自适应地配置基于功率放大器的非线性特性的基于空间映射的模型，并且基于功率放大器的非线性特性的逆的自相应自适应地配置基于空间映射的模型基于空间映射的功率放大器非线性特性模型。

17. 发明申请

WO2013058839A1 SYSTEMS AND METHODS FOR DIGITAL PROCESSING BASED ON ACTIVE SIGNAL CHANNELS OF A COMMUNICATION SYSTEM 审中-公开
标题翻译：基于通信系统的主动信号通道的数字处理系统与方法
公开(公告)号：WO2013058839A1
公开(公告)日：2013-04-25
申请号：PCT/US2012/044084
申请日：2012-06-25
申请人： XILINX, INC. , DICK, Christopher, H.
发明人： DICK, Christopher, H.
IPC分类号： H04L5/06 , H04L27/36
CPC分类号： H04L5/06 , H04L27/368
摘要： A communication system includes digital signals that carry data and correspond to channels of a composite signal to be transmitted across a communication channel. Active channels are detected and used to configure digital processing. In one embodiment, active channels are detected, where a particular active channel corresponds to the presence of a particular one of the digital signals. Active channel detection may be used to configure pre-distortion of a composite signal to be transmitted to compensate for distortion in a digital- to-analog converter (155, 406, 505). Likewise, active channel detection may be used to optimize the configuration of an up-converter (161, 404, 503, 620, 631,632). In one embodiment, a programmable device (504, 630) is configured based on detected active channels into a plurality of different configurations.
摘要翻译：通信系统包括携带数据并对应于要在通信信道上传输的复合信号的信道的数字信号。检测活动通道并用于配置数字处理。在一个实施例中，检测有源信道，其中特定有效信道对应于特定数字信号的存在。可以使用有源信道检测来配置要传输的复合信号的预失真以补偿数模转换器（155,406,505）中的失真。类似地，有源信道检测可以用于优化上变频器（161,404,503,620,631,632）的配置。在一个实施例中，可编程设备（504,630）基于检测到的活动通道被配置成多个不同的配置。

18. 发明申请

WO2013004273A1 ENHANCED LINEARIZING FOR A TRANSMITTER COMPRISING A POWER AMPLIFIER 审中-公开
标题翻译：用于包含功率放大器的变送器的增强型线性化
公开(公告)号：WO2013004273A1
公开(公告)日：2013-01-10
申请号：PCT/EP2011/061124
申请日：2011-07-01
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (publ) , GÄVERT, Björn
发明人： GÄVERT, Björn
IPC分类号： H04B1/04 , H03F1/32 , H04L27/36
CPC分类号： H04B1/0475 , H03F1/02 , H03F1/3241 , H03F1/3247 , H03F1/3258 , H03F3/189 , H03F3/245 , H03F2201/3233 , H04B2001/0425 , H04L27/368
摘要： The present invention relates to a transmitter (10) for transmitting digital communication. The transmitter (10) is arranged for mapping a data signal to a digitally modulated communication signal (S out ). The transmitter (10) comprises a Power Amplifier (15), PA, arranged to amplify the digitally modulated communication signal (S out ). The the transmitter (10) further comprises a Digital Pre-Distorter (13), DPD, arranged to linearize the amplified, digitally modulated communication signal (S out ). The transmitter is characterized in that the DPD (13) is arranged to compensate for non-linear distortions in the amplified, digitally modulated communication signal (S out ) and output tuning parameters indicating the distortion of said signal (S out ). The PA (15) is arranged to tune the amplification of the digitally modulated communication signal (S out ) on the basis of the outputted tuning parameters for optimizing the efficiency given the available bandwidth in order to reduce non-linear distortion caused by the PA (15). The present invention also relates to a corresponding method.
摘要翻译：本发明涉及一种用于发送数字通信的发射机（10）。发射机（10）被布置用于将数据信号映射到数字调制通信信号（Sout）。发射器（10）包括被布置成放大数字调制通信信号（Sout）的功率放大器（15）PA。发射机（10）还包括数字预失真器（DDP）DPD，其被布置成线性化放大的数字调制通信信号（Sout）。发射机的特征在于DPD（13）被布置为补偿放大的数字调制通信信号（Sout）中的非线性失真和指示所述信号（Sout）的失真的输出调谐参数。 PA（15）被布置为基于输出的调谐参数来调整数字调制通信信号（Sout）的放大，以便在给定可用带宽的情况下优化效率，以便减少由PA引起的非线性失真（15 ）。本发明还涉及相应的方法。

19. 发明申请

WO2012174842A1 非线性系统失真校正装置及方法审中-公开
公开(公告)号：WO2012174842A1
公开(公告)日：2012-12-27
申请号：PCT/CN2011/084583
申请日：2011-12-23
申请人：中兴通讯股份有限公司 , 宁东方 , 韦兆碧 , 张烈 , 游爱民 , 向际鹰
发明人：宁东方 , 韦兆碧 , 张烈 , 游爱民 , 向际鹰
IPC分类号： H04L25/49
CPC分类号： H04L27/368
摘要：本发明公开了一种非线性系统失真校正装置及方法，上述装置包括：自适应器模块、预校正器模块，其中，自适应器模块包括：数据采集单元，设置为采集主链路数据和反馈链路数据；信号处理单元，设置为对采集到的主链路数据和反馈链路数据进行预处理；校正参数辨识单元，设置为根据预处理后的主链路数据和反馈链路数据进行参数辨识，得到非线性系统的校正参数；预校正器模块，设置为根据校正参数对主链路数据进行预校正处理。通过本发明提供的技术方案，解决了现有数字预处理方法不能满足高线性要求的问题，进而达到了提高校正参数的辨识精度的效果。

20. 发明申请

WO2012142873A1 RF TRANSMITTER, INTEGRATED CIRCUIT DEVICE, WIRELESS COMMUNICATION UNIT AND METHOD THEREFOR 审中-公开
标题翻译： RF发射机，集成电路设备，无线通信单元及其方法
公开(公告)号：WO2012142873A1
公开(公告)日：2012-10-26
申请号：PCT/CN2012/071661
申请日：2012-02-27
申请人： MEDIATEK SINGAPORE PTE. LTD. , WANG, Hua , LU, Chao , LIU, Julia , PENG, Chun-Hsien , SON, Sang Won , LIANG, Paul Cheng Po
发明人： WANG, Hua , LU, Chao , LIU, Julia , PENG, Chun-Hsien , SON, Sang Won , LIANG, Paul Cheng Po
IPC分类号： H04L25/49
CPC分类号： H04B1/0475 , H03F1/3241 , H04B1/0483 , H04B2001/0425 , H04L27/368
摘要： A radio frequency (RF) transmitter has at least one digital signal processing module and at least one power amplifier module. The digital signal processing module includes at least one digital pre-distortion component arranged to receive at least one complex input signal, perform two-dimensional non-uniform mapping of the complex input signal to a first, in- phase, digital pre-distortion control word and a further, quadrature, digital pre-distortion control word, and output the in-phase and quadrature pre-distortion digital control words. The power amplifier module includes a first, in-phase, array of switch-mode power cells and at least one further, quadrature, array of switch-mode power cells. The two-dimensional non- uniform mapping has a pre-distortion profile at least partly based on an input/output relationship for the power amplifier module arranged to generate an analogue RF signal based at least partly on the in-phase and quadrature digital pre-distortion control words.
摘要翻译：射频（RF）发射机具有至少一个数字信号处理模块和至少一个功率放大器模块。数字信号处理模块包括至少一个数字预失真分量，被布置为接收至少一个复合输入信号，执行复数输入信号到第一，同相数字预失真控制的二维非均匀映射字和另一个正交数字预失真控制字，并输出同相和正交预失真数字控制字。功率放大器模块包括开关模式功率单元的第一同相阵列和至少一个另外的正交阵列的开关模式功率单元。至少部分地基于用于功率放大器模块的输入/输出关系的二维非均匀映射具有预失真分布，该功率放大器模块被布置成至少部分地基于同相和正交数字预处理产生模拟RF信号，失真控制字。

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