专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明授权

US08798200B2 Constellation mapping method 有权
标题翻译：星座映射法
公开(公告)号：US08798200B2
公开(公告)日：2014-08-05
申请号：US13202929
申请日：2009-07-03
申请人： Jin Xu , Jun Xu , Zhifeng Yuan , Qianzi Xu , Xianwei Gong , Bo Sun , Huiying Fang
发明人： Jin Xu , Jun Xu , Zhifeng Yuan , Qianzi Xu , Xianwei Gong , Bo Sun , Huiying Fang
IPC分类号： H04L27/36 , H04L1/00 , H04L27/34 , H04L1/18
CPC分类号： H04L27/3405 , H04L1/0066 , H04L1/0071 , H04L1/1893
摘要： The present invention provides a constellation mapping method, and the method includes: flipping a plurality of bits in each modulation symbol unit to be mapped in part of or all of modulation symbol units to be mapped of a bit sequence to be mapped; and mapping each flipped modulation symbol unit to be mapped as a modulation symbol in a constellation. By means of the present invention, the phenomenon that consecutive bits have the same reliability can be effectively avoided by changing unevenness of reliability distribution of the consecutive bits, and at the same time, the link performance can be improved.
摘要翻译：本发明提供一种星座映射方法，该方法包括：在要映射的比特序列映射的调制符号单元的一部分或全部中，对每个调制符号单元中的多个比特进行翻转，并映射要映射成星座图中的调制符号的每个翻转的调制符号单元。通过本发明，可以通过改变连续位的可靠性分布的不均匀性来有效地避免连续位具有相同可靠性的现象，同时可提高链路性能。

22. 发明授权

US08301961B2 Decoding method for low density generator matrix code 有权
标题翻译：低密度发电机矩阵码的解码方法
公开(公告)号：US08301961B2
公开(公告)日：2012-10-30
申请号：US12747936
申请日：2008-04-30
申请人： Zhifeng Yuan , Jun Xu , Jin Xu
发明人： Zhifeng Yuan , Jun Xu , Jin Xu
IPC分类号： H03M13/00
CPC分类号： H03M13/1111 , H03M13/1102 , H03M13/373 , H04L1/0057
摘要： The present invention provides a method for decoding a low density generator matrix code (LDGC), applied for decoding transmitted original information bits encoded in LDGC code. The method comprises the following steps: A: deleting a part erased by a channel in a received code word sequence R filled by a known bit sequence to obtain an erased code word sequence Re, and deleting the rows corresponding to the erased part from a transposed matrix GIdgct of a generator matrix of the LDGC to obtain the erased generator matrix Ge; B: permuting columns of Ge such that an M-order square matrix with an element in the 0th row and 0th column being a vertex is a triangular matrix to obtain the permuted generator matrix Gf; and C: calculating the original information bits using Gf and Re.
摘要翻译：本发明提供一种解码低密度发生器矩阵码（LDGC）的方法，该方法应用于解码以LDGC码编码的发送的原始信息比特。该方法包括以下步骤：A：删除由已知比特序列填充的接收码字序列R中的信道擦除的部分，以获得被擦除的码字序列Re，并从转置的序列中删除对应于被擦除部分的行 LDGC的发生器矩阵的矩阵GIdgct以获得被擦除的发生器矩阵Ge; B：排列Ge的列，使得具有第0行和第0列中的元素作为顶点的M阶方阵是三角矩阵，以获得置换的发生矩阵Gf; 和C：使用Gf和Re计算原始信息位。

23. 发明申请

US20100275091A1 DECODING METHOD FOR LOW DENSITY GENERATOR MATRIX CODE 有权
标题翻译：低密度发电机矩阵码的解码方法
公开(公告)号：US20100275091A1
公开(公告)日：2010-10-28
申请号：US12747936
申请日：2008-04-30
申请人： Zhifeng Yuan , Jun Xu , Jin Xu
发明人： Zhifeng Yuan , Jun Xu , Jin Xu
IPC分类号： H03M13/05 , G06F11/10
CPC分类号： H03M13/1111 , H03M13/1102 , H03M13/373 , H04L1/0057
摘要： The present invention provides a method for decoding a low density generator matrix code (LDGC), applied for decoding transmitted original information bits encoded in LDGC code. The method comprises the following steps: A: deleting a part erased by a channel in a received code word sequence R filled by a known bit sequence to obtain an erased code word sequence Re, and deleting the rows corresponding to the erased part from a transposed matrix GIdgct of a generator matrix of the LDGC to obtain the erased generator matrix Ge; B: permuting columns of Ge such that an M-order square matrix with an element in the 0th row and 0th column being a vertex is a triangular matrix to obtain the permuted generator matrix Gf; and C: calculating the original information bits using Gf and Re.
摘要翻译：本发明提供一种解码低密度发生器矩阵码（LDGC）的方法，该方法应用于解码以LDGC码编码的发送的原始信息比特。该方法包括以下步骤：A：删除由已知比特序列填充的接收码字序列R中的信道擦除的部分，以获得被擦除的码字序列Re，并从转置的序列中删除对应于被擦除部分的行 LDGC的发生器矩阵的矩阵GIdgct以获得被擦除的发生器矩阵Ge; B：排列Ge的列，使得具有第0行和第0列中的元素作为顶点的M阶方阵是三角矩阵，以获得置换的发生矩阵Gf; 和C：使用Gf和Re计算原始信息位。

24. 发明授权

US08607125B2 Basic matrix based on irregular LDPC, codec and generation method thereof 有权
标题翻译：基于不规则LDPC的基本矩阵，编解码器及其生成方法
公开(公告)号：US08607125B2
公开(公告)日：2013-12-10
申请号：US11795826
申请日：2005-05-13
申请人： Jun Xu , Liuqing Yuan , Liujun Hu
发明人： Jun Xu , Liuqing Yuan , Liujun Hu
IPC分类号： H03M13/00
CPC分类号： H03M13/033 , H03M13/1105 , H03M13/1148 , H03M13/118
摘要： The codec includes an encoding/decoding operation module and a basic matrix storage module. In the stored basic matrix Hb, for all girths with length of 4, any column element of i, j, k or l constituting the girths in anti-clockwise or clockwise always satisfies inequality: (i−j+k−1) mod z≠0, wherein z is the extension factor. When generating the basic matrix, firstly the number of rows M, number of columns N, and weight vectors of the rows and columns are determined, an irregularly original basic matrix is constructed; then the position of ‘1’ is filled by a value chosen from set {0, 1, 2, . . . , z−1} to obtain the basic matrix Hb. The basic matrix Hb obtained by storing constitutes the desired encoder/decoder. The encoder/decoder according to the present invention can effectively eliminate error-floor phenomenon of LDPC codes and accelerate the falling speed of BER curve.
摘要翻译：编解码器包括编码/解码操作模块和基本矩阵存储模块。在存储的基本矩阵Hb中，对于长度为4的所有周长，构成反时针或顺时针的周长的i，j，k或l的任何列元素总是满足不等式：（i-j + k-1）mod z <> 0，其中z是扩展因子。当生成基本矩阵时，首先确定行数M，列数N和行和列的加权向量，构建不规则原始基本矩阵; 那么'1'的位置由从{{0，1，2，...}中选择的值填充。。。，z-1}以获得基本矩阵Hb。通过存储获得的基本矩阵Hb构成所需的编码器/解码器。根据本发明的编码器/解码器可以有效地消除LDPC码的错误现象，加快BER曲线的下降速度。

25. 发明授权

US08438448B2 Decoding method and device for low density generator matrix codes 有权
标题翻译：低密度发生器矩阵码的解码方法和装置
公开(公告)号：US08438448B2
公开(公告)日：2013-05-07
申请号：US12991628
申请日：2008-10-14
申请人： Zhifeng Yuan , Jun Xu
发明人： Zhifeng Yuan , Jun Xu
IPC分类号： H03M13/00
CPC分类号： H03M13/1191 , H03M13/3761 , H03M13/616 , H04L1/0057
摘要： A decoding method for low density generator matrix codes is disclosed, which decodes a bit information sequence that is transmitted after encoding with LDGC, the method comprises: S1: filling L−K known bits in a received code word sequence R and deleting code word symbols erased by a channel in R, and getting Re; S2: deleting rows corresponding to the code word symbols erased by a channel from a transposed matrix Gldgct of an LDGC generator matrix, and getting Ge; S3: obtaining It according to relation Ge×It=Re; S4: obtaining st according to relation Gldgct(0:L−1,0:L−1)×It=st, and getting an original information sequence of K bits by deleting the filled L−K known bits from st. The present disclosure can significantly reduce the storage overhead of a decoder, accelerate the decoding speed, and allow LDGC to be more smartly used in high speed communication systems.
摘要翻译：公开了一种用于低密度发生器矩阵码的解码方法，其对用LDGC进行编码之后发送的比特信息序列进行解码，该方法包括：S1：在接收到的码字序列R中填充LK已知比特，并删除被删除的码字符号 R中的一个通道，并获得Re; S2：删除与LDGC生成矩阵的转置矩阵Gldgct中的通道擦除的码字符号相对应的行，得到Ge; S3：根据关系获得它们Ge×It = Re; S4：根据关系Gldgct（0：L-1,0：L-1）×It = st获取st，并通过从st删除填充的L-K已知比特得到K比特的原始信息序列。本公开可以显着减少解码器的存储开销，加速解码速度，并且允许LDGC在高速通信系统中更加智能地使用。

26. 发明申请

US20110060960A1 Decoding method and device for low density generator matrix codes 有权
标题翻译：低密度发生器矩阵码的解码方法和装置
公开(公告)号：US20110060960A1
公开(公告)日：2011-03-10
申请号：US12991628
申请日：2008-10-14
申请人： Zhifeng Yuan , Jun Xu
发明人： Zhifeng Yuan , Jun Xu
IPC分类号： H03M13/05 , G06F11/10
CPC分类号： H03M13/1191 , H03M13/3761 , H03M13/616 , H04L1/0057
摘要： A decoding method for low density generator matrix codes is disclosed, which decodes a bit information sequence that is transmitted after encoding with LDGC, the method comprises: S1: filling L−K known bits in a received code word sequence R and deleting code word symbols erased by a channel in R, and getting Re; S2: deleting rows corresponding to the code word symbols erased by a channel from a transposed matrix Gldgct of an LDGC generator matrix, and getting Ge; S3: obtaining It according to relation Ge×It=Re; S4: obtaining st according to relation Gldgct(0:L−1,0:L−1)×It=st, and getting an original information sequence of K bits by deleting the filled L−K known bits from st. The present disclosure can significantly reduce the storage overhead of a decoder, accelerate the decoding speed, and allow LDGC to be more smartly used in high speed communication systems.
摘要翻译：公开了一种用于低密度发生器矩阵码的解码方法，其对用LDGC进行编码之后发送的比特信息序列进行解码，该方法包括：S1：在接收的码字序列R中填充L-K个已知比特，并删除码字符号被R中的一个通道擦除，并得到Re; S2：删除与LDGC生成矩阵的转置矩阵Gldgct中的通道擦除的码字符号相对应的行，得到Ge; S3：根据关系获得它们Ge×It = Re; S4：根据关系Gldgct（0：L-1,0：L-1）×It = st获取st，并通过从st删除填充的L-K已知比特得到K比特的原始信息序列。本公开可以显着减少解码器的存储开销，加速解码速度，并且允许LDGC在高速通信系统中更加智能地使用。

27. 发明申请

US20150103760A1 Method, device, and base station for transmitting data of hotspot cell coverage 有权
标题翻译：用于传输热点小区覆盖数据的方法，设备和基站
公开(公告)号：US20150103760A1
公开(公告)日：2015-04-16
申请号：US14368502
申请日：2012-03-07
申请人： Shuai Zhang , Jin Xu , Jun Xu
发明人： Shuai Zhang , Jin Xu , Jun Xu
IPC分类号： H04W72/04
CPC分类号： H04W72/04 , H04L1/00 , H04L1/0016 , H04W28/18
摘要： Embodiments of the disclosure provides a method for transmitting data of hotspot cell coverage including: step a. a base station adjusts a Modulation and Coding Scheme (MCS) table allowing the same to satisfy a 256 QAM modulation scheme, and acquires layer 1 Transport Block Size (TBS) when the modulation scheme is 256 QAM; step b. on the basis of NPRB, ITBS and the number of Transport Block (TB) mapping layers, the base station determines the TBS currently transmitting data, and transmits data on the basis of the TBS. Embodiments of the disclosure also provides a device and base station for transmitting data. Employment of the method, device, and base station for transmitting the data of hotspot cell coverage of embodiments of the disclosure allows for optimized modulation scheme for the same to support up to 256 QAM, and for improved system throughput, thus solving the problem in hotspot cell coverage of system transmission speed not capable of satisfying actual demand.
摘要翻译：本公开的实施例提供了一种用于发送热点小区覆盖的数据的方法，包括：步骤a。基站调整调制编码方案（MCS）表，使其能够满足256QAM调制方案，并且当调制方案为256QAM时获取层1传输块大小（TBS）; 步骤b。基于NPRB，ITBS和传输块（TB）映射层的数量，基站确定当前正在发送数据的TBS，并且基于TBS发送数据。本公开的实施例还提供了用于发送数据的设备和基站。采用用于发送本公开实施例的热点小区覆盖的数据的方法，设备和基站允许优化的调制方案用于支持高达256QAM，并且为了改善系统吞吐量，从而解决了热点中的问题系统传输速度的小区覆盖率不能满足实际需求。

28. 发明授权

US09210693B2 Method, device, and base station for transmitting data of hotspot cell coverage 有权
标题翻译：用于传输热点小区覆盖数据的方法，设备和基站
公开(公告)号：US09210693B2
公开(公告)日：2015-12-08
申请号：US14368502
申请日：2012-03-07
申请人： Shuai Zhang , Jin Xu , Jun Xu
发明人： Shuai Zhang , Jin Xu , Jun Xu
IPC分类号： H04W72/04 , H04L1/00 , H04W28/18
CPC分类号： H04W72/04 , H04L1/00 , H04L1/0016 , H04W28/18
摘要： A method for transmitting data of hotspot cell coverage includes: a base station adjusts a Modulation and Coding Scheme (MCS) table allowing the same to satisfy a 256 QAM modulation scheme, and acquires layer 1 Transport Block Size (TBS) when the modulation scheme is 256 QAM; on the basis of NPRB, ITBS and the number of Transport Block (TB) mapping layers, the base station determines the TBS currently transmitting data, and transmits data on the basis of the TBS. Also provided is a device and base station for transmitting data. Employment of the method, device, and base station for transmitting the data of hotspot cell coverage of embodiments of the disclosure allows for optimized modulation scheme for the same to support up to 256 QAM, and for improved system throughput, thus solving the problem in hotspot cell coverage of system transmission speed not capable of satisfying actual demand.
摘要翻译：用于发送热点小区覆盖的数据的方法包括：基站调整调制和编码方案（MCS）表，使其能够满足256QAM调制方案，并且当调制方案为 256 QAM; 基于NPRB，ITBS和传输块（TB）映射层的数量，基站确定当前正在发送数据的TBS，并且基于TBS发送数据。还提供了用于传输数据的设备和基站。采用用于发送本公开实施例的热点小区覆盖的数据的方法，设备和基站允许优化的调制方案用于支持高达256QAM，并且为了改善系统吞吐量，从而解决了热点中的问题系统传输速度的小区覆盖率不能满足实际需求。

29. 发明授权

US09859960B2 Method and system for indicating transmission parameter 有权
公开(公告)号：US09859960B2
公开(公告)日：2018-01-02
申请号：US13520283
申请日：2011-02-11
申请人： Yu Ngok Li , Bo Dai , Yunfeng Sun , Jun Xu , Junfeng Zhang
发明人： Yu Ngok Li , Bo Dai , Yunfeng Sun , Jun Xu , Junfeng Zhang
IPC分类号： H04W72/04 , H04B7/0452 , H04W28/18 , H04W48/08 , H04B7/06
CPC分类号： H04B7/0452 , H04B7/063 , H04W28/18 , H04W48/08
摘要： A method and system for indicating a transmission parameter are provided in the present invention. The method includes: when multi-user multi-input multi-output (MIMO) data are transmitted, using a newly-added indication signaling in a downlink control information format to indicate different joint encoded parameters when numbers of enabled transport blocks are different. Through adding new indication signaling in the present invention, different joint encoded parameters are indicated during the multi-user MIMO data transmission and the MIMO multi-user transmission based on the demodulation reference signal is supported.

30. 发明申请

US20170057162A1 High Resolution Projection Micro-Stereolithography System And Method 审中-公开
标题翻译：高分辨率投影微立体定向系统及方法
公开(公告)号：US20170057162A1
公开(公告)日：2017-03-02
申请号：US15352051
申请日：2016-11-15
申请人： Christopher M. Spadaccini , Todd Weisgraber , George Farquar , Steven Gemberling , Nicholas Fang , Matthew Alonso , Jun Xu , Howon Lee
发明人： Christopher M. Spadaccini , Todd Weisgraber , George Farquar , Steven Gemberling , Nicholas Fang , Matthew Alonso , Jun Xu , Howon Lee
IPC分类号： B29C67/00 , B33Y30/00 , G02B5/00 , G03H1/04 , G02B27/56 , G02B1/00 , B33Y10/00 , G03H1/00
CPC分类号： G02B1/007 , B29C64/124 , B29C64/135 , B33Y10/00 , B33Y30/00 , G02B1/002 , G02B5/008 , G02B27/56 , G03F7/70408 , G03F7/70416 , G03H1/0005 , G03H1/0476 , G03H1/2294 , G03H2001/0094 , G03H2001/0482 , G03H2223/17 , G03H2225/60
摘要： A high-resolution PμSL system and method incorporating one or more of the following features with a standard PμSL system using a SLM projected digital image to form components in a stereolithographic bath: a far-field superlens for producing sub-diffraction-limited features, multiple spatial light modulators (SLM) to generate spatially-controlled three-dimensional interference holograms with nanoscale features, and the integration of microfluidic components into the resin bath of a PμSL system to fabricate microstructures of different materials.
摘要翻译：高分辨率PμSL系统和方法将一个或多个以下特征与标准PμSL系统结合使用SLM投影数字图像以在立体溶液浴中形成组件：用于产生亚衍射限制特征的多场超声空间光调制器（SLM），以产生具有纳米尺度特征的空间控制的三维干涉全息图，以及将微流体成分整合到PμSL系统的树脂浴中，以制造不同材料的微结构。

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