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    Optimizing Optical Systems Using Code Division Multiple Access and/or Orthogonal Frequency-Division Multiplexing
    2.
    发明申请
    Optimizing Optical Systems Using Code Division Multiple Access and/or Orthogonal Frequency-Division Multiplexing 审中-公开
    使用码分多址和/或正交频分复用优化光学系统

    公开(公告)号：US20160080102A1

    公开(公告)日：2016-03-17

    申请号：US14951276

    申请日：2015-11-24

    Applicant: Futurewei Technologies, Inc.

    Inventor： Liming Fang

    IPC: H04J14/00 ,  H04J14/02 ,  H04L27/26

    CPC classification number: H04J14/005 ,  H04B10/516 ,  H04B10/60 ,  H04J13/00 ,  H04J14/02 ,  H04L27/2626

    Abstract: An optical receiver comprises an optical port configured to receive an encoded optical signal, and a demodulation block indirectly coupled to the port and comprising a multiplexer, wherein the multiplexer is configured to receive an encoded electrical signal, wherein the encoded electrical signal is associated with the encoded optical signal, and wherein the encoded electrical signal is encoded using a code division multiple access (CDMA) scheme, receive a code associated with the scheme, perform a dot multiplication of the encoded electrical signal and the code, and generate a differential voltage based on the dot multiplication.

    Abstract translation: 光接收器包括被配置为接收经编码的光信号的光端口和间接耦合到端口并包括多路复用器的解调块，其中多路复用器被配置为接收经编码的电信号，其中编码的电信号与 编码的光信号，并且其中使用码分多址（CDMA）方案对编码的电信号进行编码，接收与方案相关的码，执行经编码的电信号和码的点乘法，并产生基于差分电压 在点乘法上。

    Method and Apparatus of Delivering Upstream Data in Ethernet Passive Optical Network Over Coaxial Network
    5.
    发明申请
    Method and Apparatus of Delivering Upstream Data in Ethernet Passive Optical Network Over Coaxial Network 有权
    以太网无源光网络同轴网络上传数据的方法与装置

    公开(公告)号：US20140376916A1

    公开(公告)日：2014-12-25

    申请号：US14484797

    申请日：2014-09-12

    Applicant: Futurewei Technologies, Inc.

    Inventor： Liming Fang ,  Jim Chen ,  Li Zhang

    IPC: H04B10/2575 ,  H04J14/08 ,  H04B10/27

    CPC classification number: H04B10/2575 ,  H04B10/27 ,  H04J14/08 ,  H04L12/00 ,  H04Q11/0067 ,  H04Q11/0071 ,  H04Q2011/0064 ,  H04Q2011/0086

    Abstract: An apparatus for interconnecting a fiber-optic network and a coax network comprising a coax line terminal (CLT) configured to couple to an optical line terminal (OLT) at the fiber-optic network and a plurality of coax network units (CNUs) at the coax network and to cache data received from the CNUs and forward the cached data to the OLT upon receiving a message from the OLT that assigns a transmission cycle for a specified CNU, wherein the CLT forwards the cached data to the OLT upon receiving the message regardless of whether the cached data corresponds to the specified CNU.

    Abstract translation: 一种用于互连光纤网络和同轴电缆网络的装置，包括被配置为耦合到光纤网络处的光线路终端（OLT）的同轴线路终端（CLT）和在该光纤网络处的多个同轴电缆网络单元（CNU） 同轴网络和缓存从CNU接收的数据，并且在从OLT接收到为指定的CNU分配传输周期的消息时将缓存的数据转发到OLT，其中CLT在接收到消息时将缓存的数据转发到OLT 缓存数据是否对应于指定的CNU。

    Access Equipment that Runs Ethernet Passive Optical Network (PON) or Ethernet PON Over Coax Network
    6.
    发明申请
    Access Equipment that Runs Ethernet Passive Optical Network (PON) or Ethernet PON Over Coax Network 审中-公开
    通过同轴网络运行以太网无源光网络（PON）或以太网PON的接入设备

    公开(公告)号：US20130343761A1

    公开(公告)日：2013-12-26

    申请号：US13928185

    申请日：2013-06-26

    Applicant: Futurewei Technologies, Inc.

    Inventor： Liming Fang ,  Jim Chen ,  Li Zhang

    IPC: H04B10/27

    CPC classification number: H04B10/271 ,  H04Q11/0067 ,  H04Q11/0071

    Abstract: An optical line terminal (OLT) comprising an optical transmitter, and an optical port coupled to the optical transmitter, wherein the optical port is configured to couple to a hybrid fiber coaxial (HFC) node via an optical fiber, and wherein the optical transmitter is configured to transmit analog signals to the HFC node via the optical fiber. Also included is a coaxial line terminal (CLT) comprising an electrical transmitter, and an electrical port coupled to the electrical transmitter, wherein the electrical port is configured to couple to a coaxial network unit (CNU) via an electrical cable, and wherein the electrical transmitter is configured to transmit radio frequency (RF) signals to the CNU via the electrical cable.

    Abstract translation: 一种光线路终端（OLT），包括光发射机和耦合到所述光发射机的光端口，其中所述光端口被配置为经由光纤耦合到混合光纤同轴（HFC）节点，并且其中所述光发射机 被配置为经由光纤将模拟信号发送到HFC节点。 还包括包括电发射器的同轴线路终端（CLT）和耦合到电发射器的电端口，其中电端口被配置为经由电缆耦合到同轴网络单元（CNU），并且其中电气 发射机被配置为通过电缆将射频（RF）信号发送到CNU。

    Method and apparatus for measuring round trip delay in a unified optical-coaxial network
    8.
    发明授权
    Method and apparatus for measuring round trip delay in a unified optical-coaxial network 有权
    统一光同轴网络测量往返延迟的方法和装置

    公开(公告)号：US09246583B2

    公开(公告)日：2016-01-26

    申请号：US13729768

    申请日：2012-12-28

    Applicant: Futurewei Technologies, Inc.

    Inventor： Liming Fang ,  Jim Chen ,  Li Zhang

    IPC: H04B10/079 ,  H04J3/06

    CPC classification number: H04B10/0795 ,  H04J3/0667

    Abstract: A method of determining a round trip delay time in a network comprising receiving a gate message allocating a transmission time window; retrieving a first timestamp from the gate message; setting a first clock to the time corresponding to the first timestamp, and wherein the first clock runs synchronously with a second clock recovered from a received data stream; sending upstream, after a time interval comprising a grant start time included in the transmission time window offset by a random delay time, a registration request message, wherein the registration request message includes a second timestamp obtained from the first clock; and determining a round trip delay (RTT) from a time the registration request message is received and the second timestamp.

    Abstract translation: 一种确定网络中往返延迟时间的方法，包括接收分配传输时间窗口的门信息; 从所述门信息中检索第一时间戳; 将第一时钟设置为对应于所述第一时间戳的时间，并且其中所述第一时钟与从接收到的数据流恢复的第二时钟同步地运行; 在包括发送时间窗偏移包括随机延迟时间的授权开始时间的时间间隔之后，发送上行注册请求消息，其中所述注册请求消息包括从所述第一时钟获得的第二时间戳; 以及从接收到所述注册请求消息的时间和所述第二时间戳确定往返延迟（RTT）。

    Method and apparatus of managing bandwidth allocation for upstream transmission in a unified optical-coaxial network
    9.
    发明授权
    Method and apparatus of managing bandwidth allocation for upstream transmission in a unified optical-coaxial network 有权
    在统一的光同轴网络中管理上行传输的带宽分配的方法和装置

    公开(公告)号：US09106363B2

    公开(公告)日：2015-08-11

    申请号：US13730272

    申请日：2012-12-28

    Applicant: Futurewei Technologies, Inc.

    Inventor： Liming Fang ,  Jim Chen ,  Li Zhang

    IPC: H04B10/27 ,  H04J14/08 ,  H04Q11/00

    CPC classification number: H04J14/086 ,  H04B10/27 ,  H04J3/00 ,  H04Q11/0067 ,  H04Q11/0071 ,  H04Q2011/0077

    Abstract: A method of allocating upstream bandwidth on a network comprising mapping an integer portion of a value obtained from a grant start time into a symbol number of a data frame on a coaxial segment of the network, wherein the value comprises the grant start time in units of a length of a data frame in the coaxial segment of a network, and wherein the length of the data frame comprises a preselected number of units of time defined in an optical segment of a network; mapping a fractional portion of the value obtained from the grant start time into a subcarrier number of the data frame; and mapping a grant length into a number subcarriers of the data frame.

    Abstract translation: 一种在网络上分配上行带宽的方法，包括将从授权开始时间获得的值的整数部分映射到网络的同轴段上的数据帧的符号数，其中该值包括授权开始时间，单位为 在网络的同轴段中的数据帧的长度，并且其中所述数据帧的长度包括在网络的光学段中定义的预选的时间单位数; 将从授权开始时间获得的值的小数部分映射到数据帧的子载波号中; 并将授权长度映射到数据帧的数个副载波中。

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