公开(公告)号：US20110020003A1

公开(公告)日：2011-01-27

申请号：US12789943

申请日：2010-05-28

申请人： Jianjun Yu ,  Dayou Qian ,  Philip Nan Ji ,  Ting Wang

发明人： Jianjun Yu ,  Dayou Qian ,  Philip Nan Ji ,  Ting Wang

IPC分类号： H04J14/02 ,  H04B10/04

CPC分类号： H04B10/548 ,  H04J14/06

摘要： A method for generating a 400 Gb/s single channel optical signal from multiple modulated subchannels includes carving respective modulated subchannels into return-to-zero RZ modulated subchannels having non-overlapping peaks with intensity modulators having a duty cycle less than 50%, and combining the subchannels into a single channel signal aggregating the bit rate of each of the subchannels. The subchannels are combined with a flat top optical component for increased subsequent receiver sensitivity.

摘要翻译： 用于从多个调制子信道生成400Gb / s单信道光信号的方法包括将具有非重叠峰值的相应调制子信道刻蚀成具有占空比小于50％的强度调制器的归零至零RZ调制子信道，以及组合 将子信道转换成单个信道信号，聚合每个子信道的比特率。 子通道与平顶光学部件组合，以增加后续的接收灵敏度。

公开(公告)号：US07839784B2

公开(公告)日：2010-11-23

申请号：US12178132

申请日：2008-07-23

申请人： Yuanqiu Luo ,  Si Yin ,  Ting Wang

发明人： Yuanqiu Luo ,  Si Yin ,  Ting Wang

IPC分类号： H04L12/26 ,  H04L12/56

CPC分类号： H04L47/10 ,  H04L12/4633 ,  H04L47/263 ,  H04L47/283 ,  H04L47/34

摘要： A method includes inserting a virtual circuit connectivity verification packet into aggregated traffic of m packets transmitted over multiple pseudowires in a network path, replying to the transmitted m packets with a virtual circuit connectivity verification packet with a packet loss indication when at least one packet loss is detected in an m packet group, and adjusting a rate of transmitting the aggregated m packets responsive to the packet loss indication. In the preferred embodiment the multiple pseudowires are one of constant bit rate and variable bit rate and the adjusting of the rate includes rate adjustment of variable bit rate pseudowires.

摘要翻译： 一种方法包括将虚拟电路连通性验证分组插入到在网络路径中通过多个伪线发送的m个分组的聚合流量中，当至少一个分组丢失为零时，用具有分组丢失指示的虚拟电路连接性验证分组回复所发送的m个分组 在m个分组组中检测，并且响应于分组丢失指示来调整发送聚合的m个分组的速率。 在优选实施例中，多个伪线是恒定比特率和可变比特率之一，并且速率的调整包括可变比特率伪线的速率调整。

公开(公告)号：US20100211849A1

公开(公告)日：2010-08-19

申请号：US12535423

申请日：2009-08-04

申请人： Ivan B. Djordjevic ,  Hussam G. Batshon ,  Lei Xu ,  Ting Wang

发明人： Ivan B. Djordjevic ,  Hussam G. Batshon ,  Lei Xu ,  Ting Wang

IPC分类号： H03M13/00 ,  G06F11/10 ,  G06F11/08

CPC分类号： H03M13/255 ,  H03M13/116 ,  H03M13/2703 ,  H03M13/6325 ,  H04L1/005 ,  H04L1/0057

摘要： Arbitrarily high data transmission rates may be achieved by the use of N-dimensional, LDPC-coded modulation. N orthonormal basis functions are employed using coherent reception, resulting in a proportional increase in transmission rate with only a modest increase in bit-error ratio.

摘要翻译： 可以通过使用N维，LDPC编码的调制来实现任意高的数据传输速率。 使用相干接收使用N个正交基函数，导致传输速率的比例增加，而误码率仅有适度的增加。

公开(公告)号：US20100028002A1

公开(公告)日：2010-02-04

申请号：US12184781

申请日：2008-08-01

申请人： Dayou Qian ,  Junqiang Hu ,  Philip Nan Ji ,  Ting Wang

发明人： Dayou Qian ,  Junqiang Hu ,  Philip Nan Ji ,  Ting Wang

IPC分类号： H04J14/02

CPC分类号： H04Q11/0067 ,  H04J14/0227 ,  H04J14/025 ,  H04J14/0282 ,  H04J14/0298 ,  H04L5/0007 ,  H04L5/0037 ,  H04Q2011/0086

摘要： Implementations of the present principles include methods, systems and apparatuses for transmitting data through a sub-carrier multiplexing and orthogonal frequency-division multiple access passive optical network. In accordance with aspects of the present principles, a plurality of optical network units are assigned electrical carrier frequency bandwidths that are narrower than a system capacity bandwidth. Modulation of optical waves transmitted between an optical line terminal and each optical network unit is conducted on different orthogonal sub-carrier frequencies within the assigned bandwidths such that sampling of said orthogonal sub-carrier frequencies is limited to the assigned electrical carrier frequency bandwidths. The waves are thereafter received and demodulated for the extraction of data.

摘要翻译： 本原理的实现包括通过副载波复用和正交频分多址无源光网络传输数据的方法，系统和装置。 根据本原理的方面，多个光网络单元分配比系统容量带宽窄的电载波频率带宽。 在光线路终端和每个光网络单元之间传输的光波的调制在所分配的带宽内的不同正交子载波频率上进行，使得所述正交子载波频率的采样被限制为所分配的电载波频率带宽。 之后接收和解调波以提取数据。

公开(公告)号：US20090285577A1

公开(公告)日：2009-11-19

申请号：US12119884

申请日：2008-05-13

申请人： Jianjun Yu ,  Philip Nan Ji ,  Lei Xu ,  Ting Wang

发明人： Jianjun Yu ,  Philip Nan Ji ,  Lei Xu ,  Ting Wang

IPC分类号： H04J14/02

CPC分类号： H04J14/0298 ,  H04J14/02 ,  H04J14/0282 ,  H04J14/0286

摘要： Data is transmitted by radio over fiber in a wavelength division multiplex optical transmission system. Data is transmitted over a single optical channel by directly modulating a single wavelength laser with a baseband data signal. Multiple single wavelength laser beams are multiplexed into a single multi-wavelength laser beam. All of the single optical channels are up-converted to RF frequencies by modulating the intensity of the multi-wavelength laser beam with an RF carrier.

摘要翻译： 数据通过光纤通过波分复用光传输系统传输。 通过用基带数据信号直接调制单个波长激光器，通过单个光通道传输数据。 多个单波长激光束被复用成单个多波长激光束。 通过用RF载体调制多波长激光束的强度，所有单个光通道被上变频到RF频率。

公开(公告)号：US20090282314A1

公开(公告)日：2009-11-12

申请号：US12392374

申请日：2009-02-25

申请人： Ivan B. Djordjevic ,  Lei Xu ,  Ting Wang

发明人： Ivan B. Djordjevic ,  Lei Xu ,  Ting Wang

IPC分类号： H03M13/29 ,  G06F11/10

CPC分类号： H04L1/0066 ,  H03M13/296 ,  H04L1/005

摘要： A transmitter, a receiver, and corresponding methods are provided. The transmitter includes encoders configured to encode source bit streams from L information sources into bytes of codewords. Each encoder includes different (n, k) multidimensional turbo-product codes of code rate R=k/n, where k is a number of information bytes, and n is code word length. The encoders operate in at least two phases. A first phase involves operating ky column-encoders in parallel on kx bytes per column to generate the code words for a current dimension. A second phase involves operating nx row-encoders in parallel on ky memory locations per rows to generate the code words for the current dimension. The first and second phases are repeated for remaining layers of the current dimension and layers of other dimensions.

摘要翻译： 提供发射机，接收机和相应的方法。 发射机包括被配置为将来自L个信息源的源比特流编码成码字的字节的编码器。 每个编码器包括码率R = k / n的不同（n，k）多维turbo乘积码，其中k是信息字节数，n是码字长度。 编码器至少运行两个阶段。 第一阶段涉及每列以kx字节并行运行ky列编码器，以生成当前维度的代码字。 第二阶段涉及在每行每个ky个存储单元上并行运行nx行编码器，以生成当前维度的代码字。 对于当前尺寸和其他尺寸的层的剩余层重复第一和第二阶段。

公开(公告)号：US20090199065A1

公开(公告)日：2009-08-06

申请号：US12189759

申请日：2008-08-11

申请人： Ivan B. Djordjevic ,  Lei Xu ,  Ting Wang ,  Milorad Cvijetic

发明人： Ivan B. Djordjevic ,  Lei Xu ,  Ting Wang ,  Milorad Cvijetic

IPC分类号： H03M13/05 ,  G06F11/10

CPC分类号： H03M13/1174 ,  H03M13/136

摘要： A method of encoding for optical transmission of information includes encoding information with a generalized low-density parity-check (GLDPC) code for providing coding gains, and constructing the GLDPC code with a Reed-Muller RM code as a component code, the component code being decodable using a maximum posterior probability (MAP) decoding. In a preferred embodiment, the GLDPC code includes a codeword length of substantially 4096, an information word length of substantially 3201, a lower-bound on minimum distance of substantially greater than or equal to 16, a code rate of substantially 0.78 and the RM component code includes an order of substantially 4 and an r parameter of substantially 6.

摘要翻译： 用于信息的光传输的编码方法包括使用用于提供编码增益的广义低密度奇偶校验（GLDPC）码的编码信息，以及用作为分量代码的里德 - 穆勒RM码构建GLDPC码， 使用最大后验概率（MAP）解码来解码。 在优选实施例中，GLDPC代码包括基本上为4096的码字长度，基本为3201的信息字长度，基本上大于或等于16的最小距离的下限，码率基本上为0.78，并且RM分量 代码包括基本为4的顺序和基本为6的r参数。

公开(公告)号：US20090092394A1

公开(公告)日：2009-04-09

申请号：US12207664

申请日：2008-09-10

申请人： Wei Wei ,  Ting Wang

发明人： Wei Wei ,  Ting Wang

IPC分类号： H04J14/02

CPC分类号： H04J14/0282

摘要： Various types of passive optical networks operate simultaneously in one passive optical network system comprising an optical line terminal, a passive remote node, and multiple optical network units. Downstream data is orthogonal frequency division multiplexed onto a single wavelength optical carrier transmitted on a primary downstream optical beam from the optical line terminal to a splitter in the passive remote node. The primary downstream optical beam is split into multiple secondary downstream optical beams; each is transmitted to a specific optical network unit. Upstream data is orthogonal frequency division multiplexed onto a single wavelength optical carrier transmitted on a secondary upstream optical beam from each optical network unit to a coupler in the passive remote node. The upstream wavelength for each optical network unit is different. The wavelength division multiplexed optical beam is transmitted from the passive remote node to a parallel signal detector in the optical line terminal.

摘要翻译： 在包括光线路终端，被动远程节点和多个光网络单元的一个无源光网络系统中，各种类型的无源光网络同时工作。 下行数据被正交频分复用到在从光线路终端到被动远程节点中的分路器的主下游光束上传输的单个波长光载波上。 主下游光束被分成多个次级下游光束; 每个被发送到特定光网络单元。 上行数据被正交频分复用到在从每个光网络单元到被动远程节点中的耦合器的第二上行光束上传输的单个波长光载波上。 每个光网络单元的上行波长不同。 波分复用光束从无源远端节点传输到光线路终端中的并行信号检测器。

公开(公告)号：US20090092392A1

公开(公告)日：2009-04-09

申请号：US12181656

申请日：2008-07-29

申请人： Yue-Kai Huang ,  Ting Wang ,  Junqiang Hu

发明人： Yue-Kai Huang ,  Ting Wang ,  Junqiang Hu

IPC分类号： H04J14/00

CPC分类号： H04J14/005 ,  H04J14/02 ,  H04L5/0007 ,  H04L5/0044 ,  H04L27/2626 ,  H04L27/2647

摘要： A system and method for virtual I/Q multiplexing in optical code division for secure local area OFDM includes encoding a wide spectrum signal, which includes a plurality of spectral bins, to provide a complementary spectral coding over at least two channels. The complementary spectral codings are intensity modulated with opposite polarity for each channel. An M-ary Orthogonal Frequency Division Multiplexing (OFDM) signal is modulated using the complementary spectral codings of opposite polarity with separate complementary spectral encoded (CSE) optical codes to provide a virtual in-phase (I) and quadrature (Q) (I/Q) multiplexing for the OFDM signal.

摘要翻译： 用于安全局域OFDM的光码分区中的虚拟I / Q复用的系统和方法包括对包含多个频谱区的宽频谱信号进行编码，以在至少两个信道上提供互补的频谱编码。 对于每个通道，互补的频谱编码是以相反极性强度调制的。 使用具有相反极性的互补频谱编码，使用单独的互补频谱编码（CSE）光码来调制M正交频分复用（OFDM）信号，以提供虚拟同相（I）和正交（Q）（I / Q）复用为OFDM信号。

公开(公告)号：US20090092391A1

公开(公告)日：2009-04-09

申请号：US12050465

申请日：2008-03-18

申请人： Lei Zong ,  Ting Wang ,  Takefumi Oguma ,  Katsuyuki Mino ,  Osamu Matsuda

发明人： Lei Zong ,  Ting Wang ,  Takefumi Oguma ,  Katsuyuki Mino ,  Osamu Matsuda

IPC分类号： H04J14/02

CPC分类号： H04J14/0221 ,  H04B10/07955 ,  H04J14/021 ,  H04J14/0227 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0279 ,  H04J14/0283

摘要： Methods and systems for controlling power fluctuations in a network including a plurality of nodes are disclosed. A node in the network may be configured to modify power levels in accordance with either an active state or an inactive state. The node may transition to an inactive state in response to a power change that exceeds a power change threshold. The role of the node in controlling the power fluctuation in the network is reduced in the inactive state.

摘要翻译： 公开了一种用于控制包括多个节点的网络中的功率波动的方法和系统。 网络中的节点可以被配置为根据活动状态或非活动状态来修改功率电平。 响应于超过功率变化阈值的功率变化，节点可以转变到非活动状态。 节点在控制网络中功率波动的作用在不活动状态下降低。