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公开(公告)号：US20120244897A1
公开(公告)日：2012-09-27
申请号：US13428576
申请日：2012-03-23
申请人： Yi Yang , Shuojun Yu , Gengshi Wu , Nian Peng , Feng Li
发明人： Yi Yang , Shuojun Yu , Gengshi Wu , Nian Peng , Feng Li
IPC分类号： H04B15/00
CPC分类号： H04L25/0206 , H04L25/0242 , H04L25/03891
摘要： Embodiments of the present invention disclose an interference elimination method and apparatus for a multi-antenna system. The method includes: generating an equalization coefficient according to a baseband signal received on a receiving antenna, a channel estimation matrix, and an obtained cross-correlation matrix of transmitted signals of a downlink channel on multiple transmit antennas; and performing interference elimination processing on the baseband signal according to the equalization coefficient.
摘要翻译： 本发明的实施例公开了一种用于多天线系统的干扰消除方法和装置。 该方法包括：根据在接收天线上接收的基带信号，信道估计矩阵和获得的多个发射天线上的下行链路信道的发射信号的互相关矩阵产生均衡系数; 并根据均衡系数对基带信号进行干扰消除处理。
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公开(公告)号：US08918053B2
公开(公告)日：2014-12-23
申请号：US13428576
申请日：2012-03-23
申请人： Yi Yang , Shuojun Yu , Gengshi Wu , Nian Peng , Feng Li
发明人： Yi Yang , Shuojun Yu , Gengshi Wu , Nian Peng , Feng Li
CPC分类号： H04L25/0206 , H04L25/0242 , H04L25/03891
摘要： Embodiments of the present invention disclose an interference elimination method and apparatus for a multi-antenna system. The method includes: generating an equalization coefficient according to a baseband signal received on a receiving antenna, a channel estimation matrix, and an obtained cross-correlation matrix of transmitted signals of a downlink channel on multiple transmit antennas; and performing interference elimination processing on the baseband signal according to the equalization coefficient.
摘要翻译： 本发明的实施例公开了一种用于多天线系统的干扰消除方法和装置。 该方法包括：根据在接收天线上接收的基带信号，信道估计矩阵和获得的多个发射天线上的下行链路信道的发射信号的互相关矩阵产生均衡系数; 并根据均衡系数对基带信号进行干扰消除处理。
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公开(公告)号：US08437698B2
公开(公告)日：2013-05-07
申请号：US12714249
申请日：2010-02-26
申请人： Gengshi Wu , Feng Li , Nian Peng , Shufan Huang , Jing Yang
发明人： Gengshi Wu , Feng Li , Nian Peng , Shufan Huang , Jing Yang
IPC分类号： H04B1/00
CPC分类号： G01S5/0221 , G01S5/0215 , H04W56/0075 , H04W56/0085
摘要： Method and apparatus are provided for estimating Time of Arrival (“TOA”). The method includes: performing channel estimation according to a Normal Burst (“NB”) free of interference and a local training sequence and generating a channel estimate, performing TOA estimation according to the channel estimate, and adjusting a synchronization position of the current NB according to a TOA estimation result. Interference to signals is cancelled before the TOA estimation, thus overcoming energy estimate deviation arising from interference in a strongly interfering radio environment, as occurs in the prior art, and preventing the impact on the TOA estimation. The disclosed methods and apparatus provide for more accurate energy estimates in a strongly interfering radio environment. The technical solution under the present invention does not require adjustment of the method of adjusting the search window.
摘要翻译： 提供了估计到达时间（“TOA”）的方法和装置。 该方法包括：根据无干扰的正常突发（“NB”）和本地训练序列进行信道估计，并产生信道估计，根据信道估计执行TOA估计，并根据信道估计调整当前NB的同步位置 到TOA估计结果。 在TOA估计之前，对信号的干扰被消除，从而克服由于在现有技术中发生的强干扰无线电环境中的干扰引起的能量估计偏差，并且防止对TOA估计的影响。 所公开的方法和装置在强干扰无线电环境中提供更准确的能量估计。 本发明的技术方案不需要调整搜索窗口的调整方法。
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公开(公告)号：US08588287B2
公开(公告)日：2013-11-19
申请号：US13446554
申请日：2012-04-13
申请人： Zhiqun Chen , Feng Li , Gengshi Wu , Haitao Zhang , Jing Yang , Xiuqin Peng
发明人： Zhiqun Chen , Feng Li , Gengshi Wu , Haitao Zhang , Jing Yang , Xiuqin Peng
IPC分类号： H04B3/46
摘要： A method, a device and a system for detecting channel quality are provided. The method includes: judging whether a Transmit Power Control (TPC) symbol output by a receiver is an invalid symbol; when the TPC symbol is a valid symbol, judging whether polarities of in-phase/quadrature (I/Q) components of the valid symbol are opposite to each other; counting the number of invalid symbols, the number of valid symbols, and the number of valid symbols with opposite polarities; and estimating a Bit Error Rate (BER) according to the number of the invalid symbols, the number of the valid symbols, and the number of the valid symbols with the opposite polarities, and detecting the channel quality through the BER.
摘要翻译： 提供了一种用于检测信道质量的方法，装置和系统。 该方法包括：判断接收机输出的发送功率控制（TPC）符号是否为无效符号; 当TPC符号是有效符号时，判断有效符号的同相/正交（I / Q）分量的极性是否彼此相反; 对无效符号的数量，有效符号的数量和具有相反极性的有效符号的数量进行计数; 以及根据无效符号的数量，有效符号的数量和具有相反极性的有效符号的数量来估计误码率（BER），并通过BER检测信道质量。
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公开(公告)号：US07839943B2
公开(公告)日：2010-11-23
申请号：US11697785
申请日：2007-04-09
申请人： Zhan Guo , Gengshi Wu , Feng Li
发明人： Zhan Guo , Gengshi Wu , Feng Li
IPC分类号： H04L27/28
CPC分类号： H04L27/2656 , H04L27/2613 , H04L27/2662 , H04L27/2675
摘要： A method of frame synchronization includes: inserting synchronous pilots including odd synchronous pilots and even synchronous pilots in a frame; transmitting first signals on the odd synchronous pilots, and transmitting second signals of inverse values of the first signals transmitted on the odd synchronous pilots on the even synchronous pilots; synchronizing the frame according to the odd synchronous pilots and the even synchronous pilots. With the method provided by embodiments of the present invention, complexity of the frame synchronization may be decreased and delay of the frame synchronization may be reduced.
摘要翻译： 帧同步的方法包括：在帧中插入包括奇同步导频和偶同步导频的同步导频; 在奇数同步导频上发送第一信号，并且发送在偶同步导频上在奇同步导频上发送的第一信号的反向值的第二信号; 根据奇数同步导频和偶数同步导频同步帧。 利用本发明的实施例提供的方法，可以减少帧同步的复杂度，并且可以减少帧同步的延迟。
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公开(公告)号：US20090013236A1
公开(公告)日：2009-01-08
申请号：US12212180
申请日：2008-09-17
申请人： Gengshi Wu , Shaoquan Wu , Feng Li
发明人： Gengshi Wu , Shaoquan Wu , Feng Li
CPC分类号： H04L1/0041 , H04L1/0057 , H04L1/0065 , H04L1/0071 , H04L5/0007
摘要： A cascade encoding method and apparatus are applied to a handheld television system or other fields. The method includes the following: A. Reed-Solomon (RS) encoding is performed on inputted Medium Access Control (MAC) packets, and coded MAC packets are outputted; and B. Low density parity check code (LDPC) encoding is performed on the coded MAC packets, and LDPC encoding blocks are outputted. The apparatus includes an RS coder and an LDPC coder. The RS encoding and LDPC encoding are cascaded to encode an inputted code flow, so as to reduce an error rate. Meanwhile, bytes in one RS encoding data block are dispersed into different LDPC blocks to be encoded through byte interleaving, thereby sufficiently utilizing error code characteristics of the RS encoding and the LDPC encoding for decoding, and improving error correction capability of a system.
摘要翻译： 级联编码方法和装置应用于手持电视系统或其他领域。 该方法包括：对所输入的媒体接入控制（MAC）报文进行Reed-Solomon（RS）编码，并输出编码的MAC报文; 对编码的MAC分组执行低密度奇偶校验码（LDPC）编码，并输出LDPC编码块。 该装置包括RS编码器和LDPC编码器。 RS编码和LDPC编码被级联以对输入的代码流进行编码，以便降低错误率。 同时，一个RS编码数据块中的字节分散到不同的LDPC块中，通过字节交织进行编码，从而充分利用RS编码和LDPC编码的错误码特征进行解码，提高了系统的纠错能力。
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公开(公告)号：US08301965B2
公开(公告)日：2012-10-30
申请号：US12212180
申请日：2008-09-17
申请人： Gengshi Wu , Shaoquan Wu , Feng Li
发明人： Gengshi Wu , Shaoquan Wu , Feng Li
IPC分类号： H03M13/00
CPC分类号： H04L1/0041 , H04L1/0057 , H04L1/0065 , H04L1/0071 , H04L5/0007
摘要： A cascade encoding method and apparatus are applied to a handheld television system or other fields. The method includes the following: A. Reed-Solomon (RS) encoding is performed on inputted Medium Access Control (MAC) packets, and coded MAC packets are outputted; and B. Low density parity check code (LDPC) encoding is performed on the coded MAC packets, and LDPC encoding blocks are outputted. The apparatus includes an RS coder and an LDPC coder. The RS encoding and LDPC encoding are cascaded to encode an inputted code flow, so as to reduce an error rate. Meanwhile, bytes in one RS encoding data block are dispersed into different LDPC blocks to be encoded through byte interleaving, thereby sufficiently utilizing error code characteristics of the RS encoding and the LDPC encoding for decoding, and improving error correction capability of a system.
摘要翻译： 级联编码方法和装置应用于手持电视系统或其他领域。 该方法包括：对所输入的媒体接入控制（MAC）报文进行Reed-Solomon（RS）编码，并输出编码的MAC报文; 对编码的MAC分组执行低密度奇偶校验码（LDPC）编码，并输出LDPC编码块。 该装置包括RS编码器和LDPC编码器。 RS编码和LDPC编码被级联以对输入的代码流进行编码，以便降低错误率。 同时，一个RS编码数据块中的字节分散到不同的LDPC块中，通过字节交织进行编码，从而充分利用RS编码和LDPC编码的错误码特征进行解码，提高了系统的纠错能力。
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公开(公告)号：US20120195357A1
公开(公告)日：2012-08-02
申请号：US13446554
申请日：2012-04-13
申请人： Zhiqun Chen , Feng Li , Gengshi Wu , Haitao Zhang , Jing Yang , Xiuqin Peng
发明人： Zhiqun Chen , Feng Li , Gengshi Wu , Haitao Zhang , Jing Yang , Xiuqin Peng
摘要： A method, a device and a system for detecting channel quality are provided. The method includes: judging whether a Transmit Power Control (TPC) symbol output by a receiver is an invalid symbol; when the TPC symbol is a valid symbol, judging whether polarities of in-phase/quadrature (I/Q) components of the valid symbol are opposite to each other; counting the number of invalid symbols, the number of valid symbols, and the number of valid symbols with opposite polarities; and estimating a Bit Error Rate (BER) according to the number of the invalid symbols, the number of the valid symbols, and the number of the valid symbols with the opposite polarities, and detecting the channel quality through the BER.
摘要翻译： 提供了一种用于检测信道质量的方法，装置和系统。 该方法包括：判断接收机输出的发送功率控制（TPC）符号是否为无效符号; 当TPC符号是有效符号时，判断有效符号的同相/正交（I / Q）分量的极性是否彼此相反; 对无效符号的数量，有效符号的数量和具有相反极性的有效符号的数量进行计数; 以及根据无效符号的数量，有效符号的数量和具有相反极性的有效符号的数量来估计误码率（BER），并通过BER检测信道质量。
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公开(公告)号：US20080013573A1
公开(公告)日：2008-01-17
申请号：US11697785
申请日：2007-04-09
申请人： Zhan Guo , Gengshi Wu , Feng Li
发明人： Zhan Guo , Gengshi Wu , Feng Li
IPC分类号： H04J3/06
CPC分类号： H04L27/2656 , H04L27/2613 , H04L27/2662 , H04L27/2675
摘要： A method of frame synchronization includes: inserting synchronous pilots including odd synchronous pilots and even synchronous pilots in a frame; transmitting first signals on the odd synchronous pilots, and transmitting second signals of inverse values of the first signals transmitted on the odd synchronous pilots on the even synchronous pilots; synchronizing the frame according to the odd synchronous pilots and the even synchronous pilots. With the method provided by embodiments of the present invention, complexity of the frame synchronization may be decreased and delay of the frame synchronization may be reduced.
摘要翻译： 帧同步的方法包括：在帧中插入包括奇同步导频和偶同步导频的同步导频; 在奇数同步导频上发送第一信号，并且发送在偶同步导频上在奇同步导频上发送的第一信号的反向值的第二信号; 根据奇数同步导频和偶数同步导频同步帧。 利用本发明的实施例提供的方法，可以减少帧同步的复杂度，并且可以减少帧同步的延迟。
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公开(公告)号：US10337700B2
公开(公告)日：2019-07-02
申请号：US15310791
申请日：2015-09-17
申请人： Feng Li
发明人： Feng Li
IPC分类号： F21V15/01 , F21V31/00 , F21V17/10 , F21Y115/10
摘要： A bolt locking structure for a waterproof LED lamp contains: a first casing and a second casing. The first casing includes multiple first protrusions and multiple first recesses which are arranged on each of four peripheral walls thereof respectively. The second casing includes multiple second protrusions and multiple second recesses which are arranged on each of four peripheral walls thereof respectively. The multiple first protrusions retain with the multiple second recesses, and the multiple first recesses retain with the multiple second protrusions. Multiple through holes are coaxial and form on each peripheral wall of each of the first casing and the second casing respectively, wherein each of the multiple through holes passes through each of the multiple first protrusions and the multiple second protrusions, such that each of multiple connection bolts inserts into the multiple through holes, thus locking the first casing and the second casing together.
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