Optical transmission method and device
    1.
    发明授权
    Optical transmission method and device 有权
    光传输方法及装置

    公开(公告)号:US07761008B2

    公开(公告)日:2010-07-20

    申请号:US11889039

    申请日:2007-08-08

    IPC分类号: H04B10/00

    摘要: In an optical transmission method and device of a point-multipoint type, whether or not identification information of an optical network unit designated is received within a fixed phase tolerance for a transmission enabling phase designated to optical network units on multipoint sides is determined. When it is determined that no identification information of the optical network unit designated is received and identification information of any optical network unit is received up to a transmission enabling phase subsequently designated, a transmission stop command is transmitted to the optical network unit whose identification information is received. Also, when abnormality is detected in transmitted data from the optical network unit designated or any optical network unit within a transmission enabling duration designated for the transmission enabling phase designated to the optical network units, a transmission enabling duration reducing command is transmitted to the optical network unit or all of the optical network units respectively. Thereafter, when the identification information of the optical network unit designated is received within a fixed phase tolerance for the transmission enabling phase designated to the optical network units and identification information of another optical network unit is also received up to a transmission enabling phase subsequently designated, a transmission stop command to the other optical network unit and a command for restoring the transmission enabling duration for the optical network unit and all of the optical network units are transmitted.

    摘要翻译: 在点多点类型的光传输方法和装置中,确定在指定给多点侧的光网络单元的发送使能阶段的固定相位容差内是否接收到指定的光网络单元的识别信息。 当确定没有接收到指定的光网络单元的识别信息,并且接收到任何光网络单元的识别信息直到随后指定的传输使能阶段时,发送停止命令被发送到其标识信息为 收到了 此外,当在指定给用于光网络单元的发送使能阶段指定的发送使能持续时间内的指定光网络单元或任何光网络单元的发送数据中检测到异常时,向光网络发送发送使能持续时间减少命令 单元或所有光网络单元。 此后,当在指定给光网络单元的发送使能阶段的固定相位容限内接收指定的光网络单元的识别信息,并且还接收到另外的光网络单元的识别信息直到随后指定的发送使能阶段, 发送到另一光网络单元的传输停止命令和用于恢复光网络单元和所有光网络单元的传输使能持续时间的命令。

    Technique of identifying a defective subscriber device in a point-to-multipoint network without stopping normal subscriber devices
    2.
    发明授权
    Technique of identifying a defective subscriber device in a point-to-multipoint network without stopping normal subscriber devices 有权
    识别点对多点网络中的有缺陷的用户设备而不停止普通用户设备的技术

    公开(公告)号:US07907843B2

    公开(公告)日:2011-03-15

    申请号:US11905106

    申请日:2007-09-27

    IPC分类号: H04B10/08 H04J14/08

    CPC分类号: H04J3/1694

    摘要: In a point-to-multipoint network of an optical line terminal (OLT) and multiple optical network units (ONUS) wherein each ONU is enabled to send a signal only within a time period enabled for the ONU, the OLT (or a system installed therein) identifies a defective one of the ONUs. For each of a given series of time periods, the OLT measures an optical reception level of an optical fiber signal in the time period. The OLT stores, in advance, in a table at least the reception level of a received signal from each ONU in association with the ONU. The reception level is measured in a normal state where signals from the ONUs are exclusively received. For each of the given series of time periods, the OLT decides whether a signal from one of the ONUs associated with the time period is exclusively received with no collision with any other signal. If the signal from an ONU associated with the time period is not exclusively received, the OLT identifies the defective ONU based on a measured optical reception level for the time period, a stored reception level of an ONU stored in the table and associated with the time period and the table.

    摘要翻译: 在光线路终端(OLT)和多个光网络单元(ONUS)的点对多点网络中,其中每个ONU仅能够在为ONU启用的时间段内发送信号,OLT(或安装的系统 在其中)识别有缺陷的一个ONU。 对于给定的一系列时间段中的每一个,OLT在该时间段内测量光纤信号的光接收电平。 OLT至少预先将与ONU对应的来自每个ONU的接收信号的接收电平存储在表中。 在来自ONU的信号被专门接收的正常状态下测量接收电平。 对于给定的一系列时间段中的每一个,OLT决定是否专门接收来自与该时间段相关联的一个ONU的信号,而不与任何其它信号发生冲突。 如果来自与时间段相关联的ONU的信号未被排他地接收,则OLT根据测量的时间段的光接收电平来识别有缺陷的ONU,存储在表中并与时间相关联的ONU的存储接收电平 期间和表。

    Optical transmission method and device
    3.
    发明申请
    Optical transmission method and device 有权
    光传输方法及装置

    公开(公告)号:US20080285969A1

    公开(公告)日:2008-11-20

    申请号:US11889039

    申请日:2007-08-08

    IPC分类号: H04B17/00

    摘要: In an optical transmission method and device of a point-multipoint type, whether or not identification information of an optical network unit designated is received within a fixed phase tolerance for a transmission enabling phase designated to optical network units on multipoint sides is determined. When it is determined that no identification information of the optical network unit designated is received and identification information of any optical network unit is received up to a transmission enabling phase subsequently designated, a transmission stop command is transmitted to the optical network unit whose identification information is received. Also, when abnormality is detected in transmitted data from the optical network unit designated or any optical network unit within a transmission enabling duration designated for the transmission enabling phase designated to the optical network units, a transmission enabling duration reducing command is transmitted to the optical network unit or all of the optical network units respectively. Thereafter, when the identification information of the optical network unit designated is received within a fixed phase tolerance for the transmission enabling phase designated to the optical network units and identification information of another optical network unit is also received up to a transmission enabling phase subsequently designated, a transmission stop command to the other optical network unit and a command for restoring the transmission enabling duration for the optical network unit and all of the optical network units are transmitted.

    摘要翻译: 在点多点类型的光传输方法和装置中,确定在指定给多点侧的光网络单元的发送使能阶段的固定相位容差内是否接收到指定的光网络单元的识别信息。 当确定没有接收到指定的光网络单元的识别信息,并且接收到任何光网络单元的识别信息直到随后指定的传输使能阶段时,发送停止命令被发送到其标识信息为 收到了 此外,当在指定给用于光网络单元的发送使能阶段指定的发送使能持续时间内的指定光网络单元或任何光网络单元的发送数据中检测到异常时,向光网络发送发送使能持续时间减少命令 单元或所有光网络单元。 此后,当在指定给光网络单元的发送使能阶段的固定相位容限内接收指定的光网络单元的识别信息,并且还接收到另外的光网络单元的识别信息直到随后指定的发送使能阶段, 发送到另一光网络单元的传输停止命令和用于恢复光网络单元和所有光网络单元的传输使能持续时间的命令。

    Techique of identifying a defective subscriber device in a point-to-multipoint network without stopping normal subscriber devices
    4.
    发明申请
    Techique of identifying a defective subscriber device in a point-to-multipoint network without stopping normal subscriber devices 有权
    在不停止普通用户设备的情况下,识别点对多点网络中的有缺陷的用户设备的技术

    公开(公告)号:US20080095532A1

    公开(公告)日:2008-04-24

    申请号:US11905106

    申请日:2007-09-27

    IPC分类号: H04B10/08 H04B17/00

    CPC分类号: H04J3/1694

    摘要: In a point-to-multipoint network of an optical line terminal (OLT) and multiple optical network units (ONUS) wherein each ONU is enabled to send a signal only within a time period enabled for the ONU, the OLT (or a system installed therein) identifies a defective one of the ONUs. For each of a given series of time periods, the OLT measures an optical reception level of an optical fiber signal in the time period. The OLT stores, in advance, in a table at least the reception level of a received signal from each ONU in association with the ONU. The reception level is measured in a normal state where signals from the ONUs are exclusively received. For each of the given series of time periods, the OLT decides whether a signal from one of the ONUs associated with the time period is exclusively received with no collision with any other signal. If the signal from an ONU associated with the time period is not exclusively received, the OLT identifies the defective ONU based on a measured optical reception level for the time period, a stored reception level of an ONU stored in the table and associated with the time period and the table.

    摘要翻译: 在光线路终端(OLT)和多个光网络单元(ONUS)的点对多点网络中,其中每个ONU仅能够在为ONU启用的时间段内发送信号,OLT(或安装的系统 在其中)识别有缺陷的一个ONU。 对于给定的一系列时间段中的每一个,OLT在该时间段内测量光纤信号的光接收电平。 OLT至少预先将与ONU对应的来自每个ONU的接收信号的接收电平存储在表中。 在来自ONU的信号被专门接收的正常状态下测量接收电平。 对于给定的一系列时间段中的每一个,OLT决定是否专门接收来自与该时间段相关联的一个ONU的信号,而不与任何其它信号发生冲突。 如果来自与时间段相关联的ONU的信号未被排他地接收,则OLT根据测量的时间段的光接收电平来识别有缺陷的ONU,存储在表中并与时间相关联的ONU的存储接收电平 期间和表。