公开(公告)号：US08000604B2

公开(公告)日：2011-08-16

申请号：US12039981

申请日：2008-02-29

Applicant: Dayou Qian ,  Junqiang Hu ,  Jianjun Yu ,  Philip Nan Ji ,  Lei Xu ,  Ting Wang ,  Milorad Cvijetic ,  Toshihiko Kusano

Inventor： Dayou Qian ,  Junqiang Hu ,  Jianjun Yu ,  Philip Nan Ji ,  Lei Xu ,  Ting Wang ,  Milorad Cvijetic ,  Toshihiko Kusano

IPC: H04J14/02

CPC classification number: H04L5/023 ,  H04J14/0226 ,  H04J14/0227 ,  H04J14/0246 ,  H04J14/0247 ,  H04J14/025 ,  H04J14/0252 ,  H04J14/0282 ,  H04J14/0298 ,  H04L5/0007

Abstract: A passive optical network (PON) device, system and method include an optical line terminal (OLT) receiver configured to receive multiple signals at different wavelengths simultaneously and enable multiple transmitters to operate at the same time during one upstream time slot. The optical line terminal employs Orthogonal Frequency Division Multiple Access (OFDMA) to transparently support a plurality of applications and enable dynamic bandwidth allocation among these applications where the bandwidth is allocated in two dimensional frequency and time space.

Abstract translation: 无源光网络（PON）设备，系统和方法包括配置为同时接收不同波长的多个信号的光线路终端（OLT）接收机，并使得多个发射机能够在一个上行时隙同时进行操作。 光线路终端使用正交频分多址（OFDMA）来透明地支持多个应用，并且在带宽被分配在二维频率和时间空间中的这些应用中实现动态带宽分配。

公开(公告)号：US07973688B2

公开(公告)日：2011-07-05

申请号：US12200219

申请日：2008-08-28

Applicant: Yue-Kai Huang ,  Ting Wang ,  Philip Nan Ji

Inventor： Yue-Kai Huang ,  Ting Wang ,  Philip Nan Ji

IPC: H03M1/00

CPC classification number: G02F7/00

Abstract: An analog to digital converter (ADC) structure and method includes a photonic filter bank having at least two filters. The at least two filters are configured to create a corresponding spectral tributary from an input signal at a target rate, and the at least two filters are configured to exhibit orthogonality properties between respective tributaries. An optical/electrical (O/E) converter is coupled to each of the at least two filters in a respective spectral tributary to convert an optical input to an electrical output. An analog to digital converter (ADC) is coupled to each of the O/E converters in a respective spectral tributary to sample the electrical output at a fraction of a target rate and to convert a sampled analog electrical output into a digital signal. A synthesis filter is coupled to each of the ADCs in a respective spectral tributary to reconstruct the input signal digitally at the target rate.

Abstract translation: 模数转换器（ADC）结构和方法包括具有至少两个滤波器的光子滤波器组。 所述至少两个滤波器被配置为以目标速率从输入信号创建相应的频谱支路，并且所述至少两个滤波器被配置为在各个支路之间呈现正交性质。 光/电（O / E）转换器耦合到相应频谱支路中的至少两个滤波器中的每一个，以将光输入转换成电输出。 模数转换器（ADC）被耦合到相应频谱支路中的每个O / E转换器，以一小部分目标速率对电输出进行采样，并将采样的模拟电输出转换为数字信号。 合成滤波器耦合到相应频谱支路中的每个ADC，以目标速率数字地重构输入信号。

公开(公告)号：US07965947B2

公开(公告)日：2011-06-21

申请号：US11867090

申请日：2007-10-04

Applicant: Jianjun Yu ,  Yuanqiu Luo ,  Ting Wang

Inventor： Jianjun Yu ,  Yuanqiu Luo ,  Ting Wang

IPC: H04B10/04

CPC classification number: H04J14/0282 ,  H04B10/2587 ,  H04B10/272

Abstract: An optical system and method includes a source-free optical network unit coupled to an optical fiber for receiving an original carrier signal with downstream data over the optical fiber. The optical network unit includes a modulator configured to remodulate the original carrier signal with upstream data to produce an upstream data signal for transmission back down the optical fiber in a direction opposite to a direction in which that original carrier signal was received.

Abstract translation: 光学系统和方法包括耦合到光纤的无源光网络单元，用于通过光纤接收具有下行数据的原始载波信号。 光网络单元包括调制器，其被配置为用上行数据对原始载波信号进行再调制，以产生上行数据信号，以便在与接收原始载波信号的方向相反的方向上向下传输光纤。

公开(公告)号：US20110020003A1

公开(公告)日：2011-01-27

申请号：US12789943

申请日：2010-05-28

Applicant: Jianjun Yu ,  Dayou Qian ,  Philip Nan Ji ,  Ting Wang

Inventor： Jianjun Yu ,  Dayou Qian ,  Philip Nan Ji ,  Ting Wang

IPC: H04J14/02 ,  H04B10/04

CPC classification number: H04B10/548 ,  H04J14/06

Abstract: 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.

Abstract translation: 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

Applicant: Yuanqiu Luo ,  Si Yin ,  Ting Wang

Inventor： Yuanqiu Luo ,  Si Yin ,  Ting Wang

IPC: H04L12/26 ,  H04L12/56

CPC classification number: H04L47/10 ,  H04L12/4633 ,  H04L47/263 ,  H04L47/283 ,  H04L47/34

Abstract: 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.

Abstract translation: 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

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

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

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

CPC classification number: H03M13/255 ,  H03M13/116 ,  H03M13/2703 ,  H03M13/6325 ,  H04L1/005 ,  H04L1/0057

Abstract: 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.

Abstract translation: 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

Applicant: Dayou Qian ,  Junqiang Hu ,  Philip Nan Ji ,  Ting Wang

Inventor： Dayou Qian ,  Junqiang Hu ,  Philip Nan Ji ,  Ting Wang

IPC: H04J14/02

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

Abstract: 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.

Abstract translation: 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

Applicant: Jianjun Yu ,  Philip Nan Ji ,  Lei Xu ,  Ting Wang

Inventor： Jianjun Yu ,  Philip Nan Ji ,  Lei Xu ,  Ting Wang

IPC: H04J14/02

CPC classification number: H04J14/0298 ,  H04J14/02 ,  H04J14/0282 ,  H04J14/0286

Abstract: 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.

Abstract translation: 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

Applicant: Ivan B. Djordjevic ,  Lei Xu ,  Ting Wang

Inventor： Ivan B. Djordjevic ,  Lei Xu ,  Ting Wang

IPC: H03M13/29 ,  G06F11/10

CPC classification number: H04L1/0066 ,  H03M13/296 ,  H04L1/005

Abstract: 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.

Abstract translation: 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

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

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

IPC: H03M13/05 ,  G06F11/10

CPC classification number: H03M13/1174 ,  H03M13/136

Abstract: 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.

Abstract translation: 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。