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    Channel bonding in passive optical networks
    1.
    发明授权
    Channel bonding in passive optical networks 有权

    公开(公告)号：US10484098B2

    公开(公告)日：2019-11-19

    申请号：US16259555

    申请日：2019-01-28

    Applicant: Futurewei Technologies, Inc.

    Inventor： Duane Remein ,  Frank Effenberger ,  Yuanqiu Luo

    IPC: H04B10/50 ,  H04B10/27 ,  H04B10/272 ,  H04J14/02 ,  H04L29/06

    Abstract: A method implemented at a transmitter in a passive optical network (PON), the method comprising the transmitter fragmenting a data packet into multiple frames, with each frame of the multiple frames including a data packet preamble, with the data packet preamble including an indicator associated with at least one lane to be used to transmit the data packet and a logical link identifier (LLID), the indicator identifying a first lane selected from a plurality of lanes, identifying at least one frame transmitted over the first lane, and identifying the lane order of the plurality of lanes, and the transmitter transmitting the multiple frames over the plurality of lanes.

    Band-Multiplexed Passive Optical Networks (PONs)
    2.
    发明申请
    Band-Multiplexed Passive Optical Networks (PONs) 有权

    公开(公告)号：US20190334625A1

    公开(公告)日：2019-10-31

    申请号：US15966795

    申请日：2018-04-30

    Applicant: Futurewei Technologies, Inc.

    Inventor： Xiang Liu ,  Huaiyu Zeng ,  Andy Shen ,  Frank Effenberger

    IPC: H04B10/516 ,  H04B10/50 ,  H04L12/28

    Abstract: An apparatus comprises a DAC configured to convert a digital electrical signal to an analog electrical signal and a laser coupled to the DAC. The laser is configured to generate an optical signal using the analog electrical signal for modulation, the optical signal is a band-multiplexed optical signal comprising frequency bands, the frequency bands comprise a lowest-frequency band, and the lowest-frequency band comprises a baseband IM signal. The laser is configured to transmit the optical signal. A PON comprises an OLT configured to transmit a downstream optical signal, the downstream optical signal is a band-multiplexed optical signal comprising a first band and a second band. The PON includes a first ONU configured to receive the downstream optical signal and equalize only the first band; and a second ONU configured to receive the downstream optical signal and equalize the first band and the second band.

    Control and management of passive optical network reach extenders
    4.
    发明授权
    Control and management of passive optical network reach extenders 有权

    公开(公告)号：US10256910B2

    公开(公告)日：2019-04-09

    申请号：US15938858

    申请日：2018-03-28

    Applicant: Futurewei Technologies, Inc.

    Inventor： Bo Gao ,  Yuanqiu Luo ,  Wei Lin ,  Frank Effenberger

    IPC: H04B10/29 ,  H04B10/079 ,  H04J14/02

    Abstract: Methods and apparatus are provided for identifying a connection between a reach extender channel termination (RE-CT) and an optical network unit (ONU). A method performed by an optical line terminal (OLT) for identifying a connection between a RE-CT and an ONU includes transmitting, by the OLT, a dynamic bandwidth allocation (DBA) grant to the ONU via a multi-channel termination reach extender (MCRE), retrieving, by the OLT from the MCRE, recorded optical signal power measurements associated with an upstream transmission by the ONU, and identifying, by the OLT, the RE-CT of the MCRE that is connected to the ONU by correlating the recorded optical signal power measurements associated with the upstream transmission by the ONU with the DBA grant.

    Discovery and Registration in Multi-Channel Passive Optical Networks (PONs)
    5.
    发明申请
    Discovery and Registration in Multi-Channel Passive Optical Networks (PONs) 审中-公开

    公开(公告)号：US20180316436A1

    公开(公告)日：2018-11-01

    申请号：US15960758

    申请日：2018-04-24

    Applicant: Futurewei Technologies, Inc.

    Inventor： Bo Gao ,  Duane Remein ,  Frank Effenberger

    IPC: H04B10/27 ,  H04B10/66

    Abstract: An ONU comprises: a receiver configured to receive a discovery gate message from an OLT, the discovery gate message comprises a channel assignment field, and a discovery information field, the channel assignment field indicates transmission characteristics for a plurality of channels, and the discovery information field indicates a 25G upstream capability and a 25G discovery window; and a processor coupled to the receiver and configured to process the discovery gate message. A method implemented in an ONU, the method comprises: generating a register request message, the register request message comprises a destination address field, a source address field, a length/type field, an opcode field, and a discovery information field, and the discovery information field indicates a 25G upstream capability and a 25G registration attempt; and transmitting the register request message to an OLT.

    Efficient CPRI transmission
    7.
    发明授权
    Efficient CPRI transmission 有权

    公开(公告)号：US10009673B1

    公开(公告)日：2018-06-26

    申请号：US15706487

    申请日：2017-09-15

    Applicant: Futurewei Technologies, Inc.

    Inventor： Xiang Liu ,  Frank Effenberger ,  Huaiyu Zeng ,  Jiang Qi ,  Liang Song ,  Xiao Sun

    IPC: H04J14/00 ,  H04Q11/00 ,  H04J14/08 ,  H04B10/2575 ,  H04J3/16

    Abstract: A method of communication between a base band unit (BBU) and a plurality of remote radio units (RRUs) via a point-to-multipoint time division multiplexing passive optical network (TDM-PON) system is provided. The method can be performed by an ONU and comprises receiving Ethernet packets from the Ethernet interface of an RRU of the plurality of RRUs, performing time-division multiplexing of the Ethernet packets to generate multiplexed packets, storing in a buffer of the ONU the multiplexed packets based on a pre-determined buffer starting time and buffer size, packaging the multiplexed packets in the buffer to fixed length transmission blocks (TBs) having pre-allocated time slots for TDM-PON upstream transmission, and transmitting the TBs to an optical line terminal (OLT) that is communicatively coupled to the BBU such that no contention of TBs occurs at the OLT.

    Optical transmitter with optical receiver-specific dispersion pre-compensation
    9.
    发明授权
    Optical transmitter with optical receiver-specific dispersion pre-compensation 有权
    具有光接收机特定色散预补偿的光发射机

    公开(公告)号：US09590730B2

    公开(公告)日：2017-03-07

    申请号：US14503550

    申请日：2014-10-01

    Applicant: Futurewei Technologies, Inc.

    Inventor： Xiang Liu ,  Frank Effenberger

    IPC: H04B10/50 ,  H04J14/00 ,  H04B10/272 ,  H04B10/2507 ,  H04B10/2575 ,  H04B10/2513

    CPC classification number: H04B10/2513 ,  H04B10/2507 ,  H04B10/25137 ,  H04B10/2575 ,  H04B10/25752

    Abstract: An apparatus comprising a digital signal processor (DSP) unit configured to perform fiber dispersion pre-compensation on a digital signal sequence based on a dispersion value to produce a pre-compensated signal, wherein the dispersion value is associated with a remote optical receiver, a plurality of digital-to-analog converters (DACs) coupled to the DSP unit and configured to convert the pre-compensated signal into analog electrical signals, and a frontend coupled to the DACs and configured to convert the analog electrical signals into a first optical signal, adding a constant optical electric (E)-field to the first optical signal to produce a second optical signal, and transmit the second optical signal to the remote optical receiver.

    Abstract translation: 一种包括数字信号处理器（DSP）单元的装置，其被配置为基于色散值对数字信号序列执行光纤色散预补偿以产生预补偿信号，其中色散值与远程光接收机相关联， 多个数字 - 模拟转换器（DAC），其耦合到所述DSP单元并且被配置为将所述预补偿信号转换为模拟电信号，以及前端耦合到所述DAC并且被配置为将所述模拟电信号转换为第一光信号 向所述第一光信号添加恒定的光电（E）场，以产生第二光信号，并将所述第二光信号发射到所述远程光接收机。

    Long distance multi-mode communication
    10.
    发明授权
    Long distance multi-mode communication 有权
    长途多模通讯

    公开(公告)号：US09319139B2

    公开(公告)日：2016-04-19

    申请号：US14203832

    申请日：2014-03-11

    Applicant: Futurewei Technologies, Inc.

    Inventor： Frank Effenberger ,  Ning Cheng

    IPC: H04J14/04 ,  H04J14/08 ,  H04B10/12 ,  H04B10/2581 ,  H04B10/27 ,  H04B10/2507

    CPC classification number: H04B10/2581 ,  H04B10/2507 ,  H04B10/27 ,  H04J14/0282 ,  H04J14/04 ,  H04J14/08

    Abstract: An optical line terminal (OLT) comprising a receiver configured to couple to a mode coupler via a multi-mode optical fiber that supports more than one optical communication mode, and couple to a plurality of optical network units (ONUs) via the mode coupler, a processor coupled to the receiver and configured to schedule upstream multi-mode transmissions from the ONUs via the multi-mode fiber and the mode coupler by employing time division multiplexing (TDM), and a transmitter coupled to the processor and configured to transmit schedule data to the ONUs.

    Abstract translation: 一种光线路终端（OLT），包括被配置为通过支持多于一种光通信模式的多模光纤耦合到模耦合器并经由模耦合器耦合到多个光网络单元（ONU）的接收器， 处理器，其耦合到所述接收器并且被配置为经由所述多模光纤和所述模式耦合器通过采用时分多路复用（TDM）来调度来自所述ONU的上游多模传输;以及发射器，耦合到所述处理器并被配置为传送调度数据 到ONU。

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