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    • 3. 发明授权
    • Wavelength division multiplexer compatible with two types of passive optical networks
    • 波分复用器兼容两种类型的无源光网络
    • US08655174B2
    • 2014-02-18
    • US13257991
    • 2009-09-24
    • Songlin ZhuDan GengJie Su
    • Songlin ZhuDan GengJie Su
    • H04J14/00
    • H04J14/0226H04J14/02H04J14/0201H04J14/0232H04J14/0246H04J14/0247H04J14/025H04J14/0252H04J14/0282
    • A wavelength division multiplexer is provided by the present invention, which implements the wavelength division multiplexing and de-multiplexing of the optical signals in the basic and upgrade bands by reasonably arranging the filters and selecting the spectral properties of the filters, so that the existing time division multiplexing passive optical network (TDM-PON) can transmit the next generation passive optical network (NG-PON) simultaneously and the existing TDM-PON can be smoothly upgraded to the NG-PON, meanwhile, it provides the deployed TDM-PON with the subsequent network compatibility. The wavelength division multiplexer provided in the present invention can meet the high isolation requirement of the optical signals in working band with low cost, and takes both the isolation requirement and the optical network insertion loss requirement into account, thus it has high reliability, is easy to use and for system upgrade.
    • 本发明提供一种波分多路复用器,通过合理布置滤波器并选择滤波器的频谱特性,实现了基频和升级频段光信号的波分复用和解复用,从而使现有时间 无源光网络(TDM-PON)可以同时传输下一代无源光网络(NG-PON),并将现有的TDM-PON平滑升级到NG-PON,同时提供部署的TDM-PON 后续的网络兼容性。 本发明提供的波分多路复用器能够以低成本满足工作频段光信号的高隔离要求,同时兼顾隔离要求和光网络插入损耗要求,具有高可靠性,易于 用于系统升级。
    • 4. 发明申请
    • Wavelength Division Multiplexer Compatible with Two Types of Passive Optical Networks
    • 波分复用器兼容两种无源光网络
    • US20120039605A1
    • 2012-02-16
    • US13257991
    • 2009-09-24
    • Songlin ZhuDan GengJie Su
    • Songlin ZhuDan GengJie Su
    • H04J14/02
    • H04J14/0226H04J14/02H04J14/0201H04J14/0232H04J14/0246H04J14/0247H04J14/025H04J14/0252H04J14/0282
    • A wavelength division multiplexer is provided by the present invention, which implements the wavelength division multiplexing and de-multiplexing of the optical signals in the basic and upgrade bands by reasonably arranging the filters and selecting the spectral properties of the filters, so that the existing time division multiplexing passive optical network (TDM-PON) can transmit the next generation passive optical network (NG-PON) simultaneously and the existing TDM-PON can be smoothly upgraded to the NG-PON, meanwhile, it provides the deployed TDM-PON with the subsequent network compatibility. The wavelength division multiplexer provided in the present invention can meet the high isolation requirement of the optical signals in working band with low cost, and takes both the isolation requirement and the optical network insertion loss requirement into account, thus it has high reliability, is easy to use and for system upgrade.
    • 本发明提供一种波分多路复用器,通过合理布置滤波器并选择滤波器的频谱特性,实现了基频和升级频段光信号的波分复用和解复用,从而使现有时间 无源光网络(TDM-PON)可以同时传输下一代无源光网络(NG-PON),并将现有的TDM-PON平滑升级到NG-PON,同时提供部署的TDM-PON 后续的网络兼容性。 本发明提供的波分多路复用器能够以低成本满足工作频段光信号的高隔离要求,同时兼顾隔离要求和光网络插入损耗要求,具有高可靠性,易于 用于系统升级。
    • 5. 发明申请
    • Optical network system, optical line terminal, optical network unit and optical distribution network apparatus
    • 光网络系统,光线路终端,光网络单元和光分配网络设备
    • US20130051802A1
    • 2013-02-28
    • US13522053
    • 2010-08-24
    • Biao ChenLiang ChengDawei WangSonglin ZhuDan Geng
    • Biao ChenLiang ChengDawei WangSonglin ZhuDan Geng
    • H04J14/08
    • H04Q11/0067H04B10/272H04J14/005H04Q2011/0064
    • The disclosure provides an optical network system, an Optical Line Terminal (OLT), an Optical Network Unit (ONU) and an Optical Distribution Network (ODN) apparatus. The system includes: an OLT configured to modulate and encode at least one line of time-division-multiplexed downlink signals, synthesize the downlink signals encoded into one line and then output it, receive uplink signals, and decode the uplink signals received and then output them; an ODN configured to separate the downlink signals received into multiple lines and then output them, synthesize the uplink signals received into one line, and then output it to the OLT; and ONUs configured to receive the downlink signals output from the ODN, decode the downlink signals received and output them, encode one line of time-division-multiplexed uplink signals, and output the uplink signals encoded to the ODN. Decoding of the downlink signals and encoding of the uplink signals can further be implemented by the ODN. By means of the solution of the disclosure, a hybrid Passive Optical Network (PON) system based on a Time Division Multiplexing (TDM) technology and an Optical Code Division Multiple Access (OCDMA) technology.
    • 本发明提供一种光网络系统,光线路终端(OLT),光网络单元(ONU)和光分配网络(ODN)装置。 该系统包括:OLT,被配置为对至少一行时分复用下行链路信号进行调制和编码,合成编码成一行然后输出的下行链路信号,接收上行链路信号,并对接收的上行链路信号进行解码,然后输出 他们; ODN被配置为将接收的下行链路信号分离成多条线路然后输出,将接收到的上行链路信号合成为一条线路,然后将其输出到OLT; ONU被配置为接收从ODN输出的下行链路信号,对接收到的下行链路信号进行解码并输出,编码一行时分多路复用的上行链路信号,并输出编码到ODN的上行链路信号。 下行链路信号的解码和上行链路信号的编码可以进一步由ODN实现。 通过本公开的解决方案,基于时分复用(TDM)技术和光码分多址(OCDMA)技术的混合无源光网络(PON)系统。
    • 6. 发明授权
    • Optical network system, optical line terminal, optical network unit and optical distribution network apparatus
    • 光网络系统,光线路终端,光网络单元和光分配网络设备
    • US08886043B2
    • 2014-11-11
    • US13522053
    • 2010-08-24
    • Biao ChenLiang ChengDawei WangSonglin ZhuDan Geng
    • Biao ChenLiang ChengDawei WangSonglin ZhuDan Geng
    • H04J14/00H04Q11/00H04B10/272
    • H04Q11/0067H04B10/272H04J14/005H04Q2011/0064
    • The disclosure provides an optical network system, an Optical Line Terminal (OLT), an Optical Network Unit (ONU) and an Optical Distribution Network (ODN) apparatus. The system includes: an OLT configured to modulate and encode at least one line of time-division-multiplexed downlink signals, synthesize the downlink signals encoded into one line and then output it, receive uplink signals, and decode the uplink signals received and then output them; an ODN configured to separate the downlink signals received into multiple lines and then output them, synthesize the uplink signals received into one line, and then output it to the OLT; and ONUs configured to receive the downlink signals output from the ODN, decode the downlink signals received and output them, encode one line of time-division-multiplexed uplink signals, and output the uplink signals encoded to the ODN. Decoding of the downlink signals and encoding of the uplink signals can further be implemented by the ODN. By means of the solution of the disclosure, a hybrid Passive Optical Network (PON) system based on a Time Division Multiplexing (TDM) technology and an Optical Code Division Multiple Access (OCDMA) technology.
    • 本发明提供一种光网络系统,光线路终端(OLT),光网络单元(ONU)和光分配网络(ODN)装置。 该系统包括:OLT,被配置为对至少一行时分复用下行链路信号进行调制和编码,合成编码成一行然后输出的下行链路信号,接收上行链路信号,并对接收的上行链路信号进行解码,然后输出 他们; ODN被配置为将接收的下行链路信号分离成多条线路然后输出,将接收到的上行链路信号合成为一条线路,然后将其输出到OLT; ONU被配置为接收从ODN输出的下行链路信号,对接收到的下行链路信号进行解码并输出,编码一行时分多路复用的上行链路信号,并输出编码到ODN的上行链路信号。 下行链路信号的解码和上行链路信号的编码可以进一步由ODN实现。 通过本公开的解决方案,基于时分复用(TDM)技术和光码分多址(OCDMA)技术的混合无源光网络(PON)系统。
    • 7. 发明申请
    • Power Saving Method, System and Optical Network Unit in Passive Optical Network
    • 无源光网络节能方法,系统和光网络单元
    • US20120275790A1
    • 2012-11-01
    • US13258450
    • 2010-06-25
    • Weiliang ZhangDan Geng
    • Weiliang ZhangDan Geng
    • H04J14/00
    • H04Q11/0067H04B10/27H04Q2011/0064H04Q2011/0079
    • A power saving method in a passive optical network, including: when receiving an upstream burst timeslot allocated by the Optical Line Terminal (OLT) after a power supply of the Optical Network Unit (ONU) is turned off, the ONU dividing the upstream burst timeslot into one or more upstream burst timeslots; and the ONU turning on own laser in the upstream burst timeslot belonging to the ONU, and after sending one or more emergent Physical Layer Operations, Administration and Maintenance (PLOAM) messages to OLT in each upstream burst timeslot, promptly turning off the own laser. A power saving system in a passive optical network and an optical network unit is provided. The invention can decrease the power supply volume of an electric supply installation in a power-off ONU and reduce the cost of the electric supply installation.
    • 一种无源光网络中的省电方法,其特征在于,在光网络单元(ONU)的电源关闭后,当接收到由光线路终端(OLT)分配的上行突发时隙时,ONU将上行突发时隙 进入一个或多个上游突发时隙; 并且ONU在属于ONU的上行突发时隙中打开自己的激光器,并且在每个上行突发时隙中向OLT发送一个或多个紧急物理层操作,管理和维护(PLOAM)消息后立即关闭自己的激光器。 提供了一种无源光网络和光网络单元中的省电系统。 本发明可以减少断电ONU中的电力供应装置的供电量并降低电力供应装置的成本。
    • 9. 发明申请
    • RANGING METHOD AND APPARATUS IN PASSIVE OPTICAL NETWORK
    • 无源光网络中的测距方法和设备
    • US20120121253A1
    • 2012-05-17
    • US13384746
    • 2010-11-19
    • Weiliang ZhangDan Geng
    • Weiliang ZhangDan Geng
    • H04B10/08
    • H04J3/0682H04J3/14H04Q11/0067H04Q2011/0079
    • The present invention discloses a method for ranging in a passive optical network, and the method includes: obtaining a Round Trip Delay (RTD) between an Optical Line Terminal (OLT) and an Optical Network Unit (ONU); and opening a quiet window used for the ranging for the ONU according to the RTD to perform the ranging on this ONU. The present invention further discloses an apparatus for ranging in a passive optical network, and the apparatus includes: an obtainment module which is configured to: obtain a RTD between an OLT and an ONU; and a ranging module configured to: open a quiet window used for ranging for the ONU to perform ranging on the ONU according to the RTD. The present invention shortens the open time of the quiet window used for the ranging and improves the efficiency of the upstream transmission, and the implementation method is simple and convenient.
    • 本发明公开了一种无源光网络中的测距方法,该方法包括:获得光线路终端(OLT)与光网络单元(ONU)之间的往返延迟(RTD); 并根据RTD打开用于ONU的测距的安静窗口,对ONU进行测距。 本发明还公开了一种在无源光网络中测距的装置,该装置包括:获取模块,被配置为:获得OLT与ONU之间的RTD; 以及测距模块,被配置为:打开用于测距的安静窗口,以根据RTD在ONU上执行测距。 本发明缩短了用于测距的安静窗口的开放时间,提高了上行传输的效率,实现方法简单方便。