公开(公告)号：US10297001B2

公开(公告)日：2019-05-21

申请号：US14583300

申请日：2014-12-26

Applicant: Subramaniam Maiyuran ,  Shubh B. Shah ,  Ashutosh Garg ,  Jin Xu ,  Thomas A. Piazza ,  Jorge F. Garcia Pabon ,  Michael K. Dwyer

Inventor： Subramaniam Maiyuran ,  Shubh B. Shah ,  Ashutosh Garg ,  Jin Xu ,  Thomas A. Piazza ,  Jorge F. Garcia Pabon ,  Michael K. Dwyer

IPC: G06T1/20 ,  G09G5/00 ,  G06T15/80 ,  G09G5/36 ,  G06F7/00 ,  G06F9/30

Abstract: Systems and methods may provide a graphics processor that may identify operating conditions under which certain floating point instructions may utilize power to fewer hardware resources compared to when the instructions are executing under other operating conditions. The operating conditions may be determined by examining operands used in a given instruction, including the relative magnitudes of the operands and whether the operands may be taken as equal to certain defined values. The floating point instructions may include instructions for an addition operation, a multiplication operation, a compare operation, and/or a fused multiply-add operation.

公开(公告)号：US09496994B2

公开(公告)日：2016-11-15

申请号：US14369771

申请日：2012-03-20

Applicant: Shuai Zhang ,  Bo Dai ,  Jin Xu

Inventor： Shuai Zhang ,  Bo Dai ,  Jin Xu

IPC: H04L5/00 ,  H04W28/06 ,  H04W72/04 ,  H04L27/26 ,  H04L5/14

CPC classification number: H04L5/0007 ,  H04L5/001 ,  H04L5/0044 ,  H04L5/0094 ,  H04L5/1469 ,  H04L27/2602 ,  H04W28/06 ,  H04W72/0446

Abstract: A method and a base station for determining a size of transmission blocks in a subframe. The method comprises: acquiring a physical resource block allocation number N′PRB and a transmission block size index I′TBS; determining a conversion relationship, and converting N′PRB and I′TBS, according to a conversion relationship, respectively into NPRB and ITBS used in existing calculation for the size of a transmission blocks; and according to NPRB and ITBS, calculating the size of the transmission blocks.

Abstract translation: 一种用于确定子帧中的传输块的大小的方法和基站。 该方法包括：获取物理资源块分配数N'PRB和传输块大小索引I'TBS; 确定转换关系，并根据转换关系将N'PRB和I'TBS分别转换为用于传输块大小的现有计算中使用的NPRB和ITBS; 并根据NPRB和ITBS计算传输块的大小。

公开(公告)号：US20150103760A1

公开(公告)日：2015-04-16

申请号：US14368502

申请日：2012-03-07

Applicant: Shuai Zhang ,  Jin Xu ,  Jun Xu

Inventor： Shuai Zhang ,  Jin Xu ,  Jun Xu

IPC: H04W72/04

CPC classification number: H04W72/04 ,  H04L1/00 ,  H04L1/0016 ,  H04W28/18

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20140369639A1

公开(公告)日：2014-12-18

申请号：US14009324

申请日：2012-03-13

Applicant: Shuqiang Zhang ,  Mingfeng Fan ,  Song Wang ,  Jin Xu ,  Jie Luo ,  Beibei Cao

Inventor： Shuqiang Zhang ,  Mingfeng Fan ,  Song Wang ,  Jin Xu ,  Jie Luo ,  Beibei Cao

IPC: G02B6/036 ,  G02B6/27

CPC classification number: G02B6/03666 ,  G02B6/02214 ,  G02B6/02261 ,  G02B6/03644

Abstract: A dispersion compensation fiber comprises a fiber core and cladding. The fiber core is a core layer mainly doped with germanium and having a positive relative refractive index difference. The cladding covering the fiber core comprises a trench cladding mainly doped with fluorine, an annular cladding mainly doped with germanium, a matching cladding mainly doped with fluorine, and an outermost mechanical cladding in order. Relative refractive index differences of the fiber core and the claddings are respectively: Δ1% being 1.55% to 2.20%, Δ2% being −0.55% to −0.30%, Δ3% being 0.40% to 0.65%, Δ4% being −0.20% to −0.01%, and Δ5% being 0. Radius ranges, from R1 to R5, of the fiber core and the claddings are respectively: R1 being 1.4 to 1.7 μm, R2 being 4.1 to 4.8 μm, R3 being 6.7 to 8.8 μm, R4 being 10 to 17 μm, and R5 being 38 to 63 μm.

Abstract translation: 色散补偿光纤包括光纤芯和包层。 纤维芯是主要掺杂锗并且具有正的相对折射率差的芯层。 覆盖纤维芯的包层包括主要掺杂有氟的沟槽包层，主要掺杂有锗的环形包层，主要掺杂有氟的匹配包层以及最外层机械包层。 纤维芯和包层的相对折射率差异分别为：＆Dgr; 1％为1.55％至2.20％，＆Dgr; 2％为-0.55％至-0.30％，＆Dgr; 3％为0.40％至0.65％，＆Dgr ; 4％为-0.20％至-0.01％，＆Dgr; 5％为0.纤维芯和包层的半径范围为R1至R5分别为：R1为1.4〜1.7μm，R2为4.1〜4.8 μm，R3为6.7〜8.8μm，R4为10〜17μm，R5为38〜63μm。

公开(公告)号：US08798200B2

公开(公告)日：2014-08-05

申请号：US13202929

申请日：2009-07-03

Applicant: Jin Xu ,  Jun Xu ,  Zhifeng Yuan ,  Qianzi Xu ,  Xianwei Gong ,  Bo Sun ,  Huiying Fang

Inventor： Jin Xu ,  Jun Xu ,  Zhifeng Yuan ,  Qianzi Xu ,  Xianwei Gong ,  Bo Sun ,  Huiying Fang

IPC: H04L27/36 ,  H04L1/00 ,  H04L27/34 ,  H04L1/18

CPC classification number: H04L27/3405 ,  H04L1/0066 ,  H04L1/0071 ,  H04L1/1893

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08671277B2

公开(公告)日：2014-03-11

申请号：US12797409

申请日：2010-06-09

Applicant: Jin Xu ,  Biao Chen

Inventor： Jin Xu ,  Biao Chen

IPC: H04L9/32

CPC classification number: H04L9/0827

Abstract: A method for securely communicating a message from a source node to a destination node over a network can comprise the steps of converting the message into an initial bit sequence, pre-processing the initial bit sequence by a modulo adding the initial bit sequence with an auxiliary key message, constructing a reduced network, determining a multitude of paths from the source node to the destination node over the reduced network, constructing an expanded bit sequence comprising the initial bit sequence and the auxiliary key message, splitting the expanded bit sequence into two or more parts, transmitting the two or more parts of the expanded bit sequence over two or more paths of the multitude of paths, re-assembling the two or more parts of the expanded bit sequence at the destination node, and recovering the initial bit sequence by modulo adding the expanded bit sequence with the auxiliary key message.

Abstract translation: 一种用于通过网络从源节点到目的地节点安全地传递消息的方法可以包括以下步骤：将消息转换成初始比特序列，通过模数将原始比特序列与辅助 构建减少的网络，通过缩减网络确定从源节点到目的地节点的大量路径，构建包括初始比特序列和辅助密钥消息的扩展比特序列，将扩展比特序列分成两个或 更多的部分，通过多个路径的两个或多个路径发送扩展比特序列的两个或更多个部分，重新​​组合目的地节点处的扩展比特序列的两个或更多个部分，并且通过 使用辅助键消息对扩展的比特序列进行模加法。

公开(公告)号：US08301961B2

公开(公告)日：2012-10-30

申请号：US12747936

申请日：2008-04-30

Applicant: Zhifeng Yuan ,  Jun Xu ,  Jin Xu

Inventor： Zhifeng Yuan ,  Jun Xu ,  Jin Xu

IPC: H03M13/00

CPC classification number: H03M13/1111 ,  H03M13/1102 ,  H03M13/373 ,  H04L1/0057

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08286063B2

公开(公告)日：2012-10-09

申请号：US12988643

申请日：2008-08-25

Applicant: Jin Xu ,  Jun Xu ,  Zhifeng Yuan ,  Liujun Hu

Inventor： Jin Xu ,  Jun Xu ,  Zhifeng Yuan ,  Liujun Hu

IPC: H03M13/00

CPC classification number: H04L1/0071 ,  H03M13/15 ,  H03M13/27 ,  H04L1/0057

Abstract: The present invention provides a decoding method and device for Reed-Solomon (RS) codes. The method includes the following steps: A: filling data to be decoded in a byte interleaver by column in turn; B: performing cyclic shift to data in a check region of the byte interleaver by row and/or by column, so as to make the data of each row in the check region become check data in sequence of data of corresponding row in an information region of the byte interleaver; C: performing RS decoding by row method, and writing information data of each row obtained after decoding into the corresponding row in the information region of the byte interleaver in turn; and D: reading business data of the decoded information data from the information region of the byte interleaver by column. The method and device of the present invention achieve the best interleaving effect.

Abstract translation: 本发明提供了一种用于里德 - 所罗门（RS）码的解码方法和装置。 该方法包括以下步骤：A：按列依次填充要在字节交织器中解码的数据; B：通过行和/或列对字节交织器的检查区域中的数据进行循环移位，以使检查区域中的每行的数据按照信息区域中的相应行的数据顺序成为检查数据 的字节交织器; C：通过行方法执行RS解码，并且将解码后获得的每行的信息数据依次写入字节交织器的信息区域中的对应行; 并且D：从字节交织器的信息区域中逐列读取解码信息数据的业务数据。 本发明的方法和装置实现了最佳的交织效果。

公开(公告)号：US20100281332A1

公开(公告)日：2010-11-04

申请号：US12810832

申请日：2008-06-12

Applicant: Jun Xu ,  Song Li ,  Jin Xu ,  Zhifeng Yuan ,  Yuanli Fang ,  Xiangbiao Yan ,  Liujun Hu

Inventor： Jun Xu ,  Song Li ,  Jin Xu ,  Zhifeng Yuan ,  Yuanli Fang ,  Xiangbiao Yan ,  Liujun Hu

IPC: H03M13/05 ,  G06F11/10

CPC classification number: H03M13/11 ,  H03M13/3761

Abstract: The present invention discloses an encoding method and device for Low Density Generator Matrix Codes (LDGC). Wherein, the method comprises: construct an LDGC mother code set using a plurality of LDGC with code rate R0 and different code lengths, wherein the LDGC mother code set has a uniform base matrix Gbuniform={(gi, jb)uniform}kb×nb; obtain length L of an intermediate variable according to a relationship between length K of an information bit sequence to be encoded in the LDGC mother code set and length L of the intermediate variable; obtain an expanding factor z for processing the base matrix using the length of the intermediate variable and the number of rows in the base matrix; process the base matrix using the expanding factor to obtain a binary generator matrix Gtmp, the front L rows and front L columns of which compose a triangular matrix; modify the binary generator matrix to obtain a modified binary generator matrix; take a matrix Gldgc composed of L rows and the front N+L−K columns of the modified binary generator matrix as a generator matrix of the information bit sequence to encode the information bit sequence.

Abstract translation: 本发明公开了一种低密度发生器矩阵码（LDGC）的编码方法和装置。 其中，该方法包括：使用多个LDGC构建LDGC母码集，码率为R0，码长不同，其中，LDGC母码组具有均匀的基本矩阵Gbuniform = {（gi，jb）uniform} kb×nb ; 根据LDGC母码组中要编码的信息比特序列的长度K与中间变量的长度L之间的关系，获得中间变量的长度L; 使用中间变量的长度和基本矩阵中的行数来获得用于处理基本矩阵的扩展因子z; 使用扩展因子处理基本矩阵以获得二进制生成矩阵Gtmp，其前L行和前L列组成三角矩阵; 修改二进制生成矩阵以获得修改后的二进制生成矩阵; 将由L行组成的矩阵Gldgc和修改后的二进制生成器矩阵的前N + L-K列作为信息比特序列的生成矩阵来编码信息比特序列。

公开(公告)号：US20100269010A1

公开(公告)日：2010-10-21

申请号：US12746756

申请日：2008-04-16

Applicant: Jin Xu ,  Jun Xu ,  Zhifeng Yuan ,  Yuanli Fang ,  Song Li ,  Liujun Hu

Inventor： Jin Xu ,  Jun Xu ,  Zhifeng Yuan ,  Yuanli Fang ,  Song Li ,  Liujun Hu

IPC: H03M13/05 ,  G06F11/10

CPC classification number: H03M13/116 ,  H03M13/118 ,  H03M13/6362 ,  H03M13/6516

Abstract: An encoding method, encoding device, decoding method and decoding device for low density generator matrix codes (LDGC) are disclosed. Wherein, the encoding method comprises: construct an LDGC mother code set using P LDGC with code rate R0 and different code lengths, wherein the LDGC mother code set has a uniform basic matrix Gbuniform wherein, R 0 = k b n b , kb denotes the number of rows and nb denotes the number of columns in the basic matrix; obtain length L of an intermediate variant according to length K of an information bit sequence to be encoded in the LDGC mother code set; modify and expand the basic matrix to obtain a generator matrix Gldgc using the length L of the intermediate variant and the number kb of rows in the basic matrix; and encode the information bit sequence to be encoded using a matrix Gldgc (1:L,1:N+L−K) composed of L rows and the front N+L−K columns of the generator matrix, wherein N denotes the length of the encoded information.

Abstract translation: 公开了一种用于低密度发生器矩阵码（LDGC）的编码方法，编码装置，解码方法和解码装置。 其编码方法包括：使用代码率R0和不同代码长度的P LDGC构建LDGC母码集，其中LDGC母码组具有均匀的基本矩阵，其中，R 0 = kbnb，kb表示行数 而nb表示基本矩阵中的列数; 根据要编码在LDGC母码组中的信息比特序列的长度K获得中间变体的长度L; 修改和扩展基本矩阵，以使用中间变体的长度L和基本矩阵中的行的数量kb来获得生成矩阵Gldgc; 并使用由L行构成的矩阵Gldgc（1：L，1：N + L-K）对生成矩阵的前N + L-K列进行编码的信息比特序列进行编码，其中，N表示 编码信息。