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    System and methods for high symbol-rate optical nyquist signal generation with roll-off factor approaching zero
    1.
    发明授权
    System and methods for high symbol-rate optical nyquist signal generation with roll-off factor approaching zero 有权

    公开(公告)号：US10411809B2

    公开(公告)日：2019-09-10

    申请号：US15334417

    申请日：2016-10-26

    Applicant: ZTE (USA) Inc.

    Inventor： Jianjun Yu ,  Junwen Zhang

    IPC: H04B10/54 ,  H04J14/02 ,  H04B10/548

    Abstract: Disclosed systems, methods, and computer program products enable high symbol-rate optical Nyquist signal generation with roll-off factors approaching zero by combining digital and all-optical methods. The combined digital and all-optical methods utilize all-optical sine-shaped pulse generation and orthogonal time-division multiplexing with quadrature amplitude modulation using digital Nyquist signals. Disclosed embodiments exhibit inter-channel-interference penalties that are less than 0.5-dB for both 75-GBaud and 125-GBaud optical Nyquist signals, in contrast to conventional signals generated using rectangular waveform driving signals that exhibit penalties greater than 2.5-dB and 1.5-dB for 75-GBaud and 125-GBaud signals, respectively. The disclosed embodiments, therefore, enable significant improvement over conventional systems by reducing inter-channel-interference penalties caused by excess modulation induced bandwidth.

    Method and apparatus of downstream forward error correction on-off control in XG-PON1 and NG-PON2 TWDM-PON systems
    3.
    发明授权
    Method and apparatus of downstream forward error correction on-off control in XG-PON1 and NG-PON2 TWDM-PON systems 有权

    公开(公告)号：US10044467B2

    公开(公告)日：2018-08-07

    申请号：US14767838

    申请日：2014-02-25

    Applicant: ZTE (USA) INC.

    Inventor： Denis A. Khotimsky

    IPC: H04L1/00 ,  H03M13/05 ,  H03M13/15 ,  H03M13/35 ,  H03M13/00

    Abstract: An apparatus and method for receiving and transmitting data is disclosed. In one exemplary embodiment, the method includes: controlling a data source output source frames at a first data rate; receiving a source frame at an encoder at the first data rate; reading a fixed number of n-byte data blocks from the source frame, wherein n is an integer; appending an (m-n)-byte parity block to each n-byte data block to form the fixed number of m-byte first code words, wherein m is an integer greater than n; prepending to the fixed number of m-byte first code words a first prefix to form an error correcting physical frame, the first prefix including an error correction indicator set to a first value and an extra data indicator set to a second value; and transmitting the error correcting physical frame at a fixed transmit data rate.

    Directly-modulated multi-polarization optical transmitters
    5.
    发明授权
    Directly-modulated multi-polarization optical transmitters 有权

    公开(公告)号：US09880351B2

    公开(公告)日：2018-01-30

    申请号：US14254296

    申请日：2014-04-16

    Applicant: ZTE (USA) INC.

    Inventor： Hung-Chang Chien ,  Zhensheng Jia ,  Jianjun Yu

    IPC: H04B10/00 ,  G02B6/10 ,  H04B10/50 ,  H04B10/532 ,  H04B10/556

    CPC classification number: G02B6/105 ,  H04B10/5053 ,  H04B10/532 ,  H04B10/5561

    Abstract: The present invention relates to optical transmitters, transceivers, and transponders used for transmission of information or data in any form through a physical medium dependent (PMD) network. The speed of such networks depends, in part, on the density of information that can be transmitted through the physical medium. Optical transmitters or transceivers can be used to transmit multiple independent signals simultaneously through the same medium using different directions or axes of polarization, where the difference in the directions or axes of polarization can be used to distinguish the multiple signals at the receiver. In this invention, we use a master laser (l0) to synchronize two slave lasers (l1 and l2) by its x-polarization and y-polarization components of carrier, respectively, so that two slave lasers can be enforced to lock on exactly the same wavelength l0 with perpendicular polarization directions.

    Compact low loss transition with an integrated coupler
    8.
    发明授权
    Compact low loss transition with an integrated coupler 有权
    具有集成耦合器的紧凑型低损耗转换

    公开(公告)号：US09538658B2

    公开(公告)日：2017-01-03

    申请号：US13944764

    申请日：2013-07-17

    Applicant: ZTE (USA) Inc.

    Inventor： Ying Shen ,  Peng Gao

    IPC: H05K1/18 ,  H05K1/02 ,  H01P5/107

    CPC classification number: H05K1/18 ,  H01P5/107 ,  H05K1/0239 ,  H05K1/025 ,  H05K2201/09618 ,  H05K2201/0969 ,  H05K2201/10098

    Abstract: A compact transition structure includes a printed circuit board, wherein there is a rectangular region on one side of the printed circuit board and the rectangular region has a pair of long edges and a pair of short edges; a transition probe on the one side of the printed circuit board, wherein the transition probe extends into the rectangular region through a long edge of the rectangular region and has a terminal near a center of the rectangular region; and a coupler probe on the one side the printed circuit board, wherein the coupler probe extends into the rectangular region through a short edge of the rectangular region and has a terminal before the center of the rectangular region such that the coupler probe is electrically insulated from the transition probe.

    Abstract translation: 紧凑的过渡结构包括印刷电路板，其中在印刷电路板的一侧上具有矩形区域，并且矩形区域具有一对长边缘和一对短边缘; 在所述印刷电路板的一侧上的过渡探针，其中所述过渡探针通过所述矩形区域的长边延伸到所述矩形区域中，并且在所述矩形区域的中心附近具有端子; 以及在印刷电路板的一侧上的耦合器探针，其中耦合器探针通过矩形区域的短边缘延伸到矩形区域中，并且在矩形区域的中心之前具有端子，使得耦合器探针与 过渡探针。

    System and method for cloud-based implementation of control of focused overload of service element (COFO-SE) via explicit (or virtualized) machine-to-machine (M2M) gateway element
    9.
    发明授权
    System and method for cloud-based implementation of control of focused overload of service element (COFO-SE) via explicit (or virtualized) machine-to-machine (M2M) gateway element 有权
    通过显式（或虚拟化）机器对机器（M2M）网关元件实现对服务元素（COFO-SE）的重点过载控制的云实施的系统和方法

    公开(公告)号：US09426088B2

    公开(公告)日：2016-08-23

    申请号：US14354226

    申请日：2012-10-24

    Applicant: ZTE (USA) INC.

    Inventor： Bhumip Khasnabish

    IPC: H04L12/24 ,  H04L12/703 ,  H04L12/707 ,  H04L29/08 ,  H04L12/911 ,  H04W4/00

    CPC classification number: H04L47/72 ,  H04L41/0668 ,  H04L41/0806 ,  H04L45/22 ,  H04L45/28 ,  H04L67/10 ,  H04L67/16 ,  H04W4/70

    Abstract: A system and method for cloud-based implementation of control of focused overload of service elements is disclosed. Resource blocks are obtained for a signaling part of a service element from a variety of networked resources. The signaling part of the service element controls allocation of resources from a media part of the service element via instructions over virtual private network links. Resource blocks for the media part of the service element are obtained from a variety of networked resources, wherein the resource blocks are integrated into a pool and a unified view is presented to the signaling part of the service element. The media part of the service element uses the resource blocks for the applications and services for a specific (e.g., session or transaction length) duration of time, and additional borrowed resources are released after successful utilization.

    Abstract translation: 公开了一种用于基于云实现对服务元素的聚焦过载的控制的系统和方法。 从各种网络资源获取用于服务元件的信令部分的资源块。 服务元件的信令部分通过虚拟专用网络链路上的指令控制来自服务元件的媒体部分的资源分配。 从各种网络资源获得服务元件的媒体部分的资源块，其中资源块被集成到一个池中，统一的视图被呈现给服务元件的信令部分。 服务元件的媒体部分使用用于应用和服务的资源块用于特定（例如，会话或事务长度）持续时间，并且在成功利用之后释放额外的借用资源。

    INTERFERENCE COORDINATION IN DENSE SMALL CELLS
    10.
    发明申请
    INTERFERENCE COORDINATION IN DENSE SMALL CELLS 审中-公开
    干扰小细胞中的干扰协调

    公开(公告)号：US20160211955A1

    公开(公告)日：2016-07-21

    申请号：US14915876

    申请日：2014-08-19

    Applicant: ZTE (USA) INC.

    Inventor： Huaming WU

    IPC: H04L5/00 ,  H04W72/04

    CPC classification number: H04L5/0032 ,  H04L5/0073 ,  H04W16/10 ,  H04W16/32 ,  H04W24/02 ,  H04W72/0413 ,  H04W72/0426 ,  H04W72/0486

    Abstract: A method of reducing interference between different cells in a densely populated cell network at an ABS allocation controller comprising sending an interference estimation request to at least one of a plurality of cells communicatively coupled with the ABS controller to report estimated interference from its neighboring one or more cells, receiving an interference estimation response from the one or more cells of the plurality of cells, receiving traffic load information from each cell communicatively coupled with the ABS controller, analyzing all the received interference estimates and traffic load information to determine almost blank subframe allocation at one or more interfering cells of the plurality of cells, and sending an ABS allocation command to one or more interfering cells of the plurality of cells.

    Abstract translation: 一种在ABS分配控制器处减少密集人口密集的小区网络中的不同小区之间的干扰的方法，包括向与所述ABS控制器通信耦合的多个小区中的至少一个小区发送干扰估计请求，以从其相邻的一个或多个 从多个小区的一个或多个小区接收干扰估计响应，从与ABS控制器通信耦合的每个小区接收业务负载信息，分析所有接收的干扰估计和业务负载信息，以确定几乎空白的子帧分配 所述多个小区中的一个或多个干扰小区，并且向所述多个小区中的一个或多个干扰小区发送ABS分配命令。

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