公开(公告)号：US20190052940A1

公开(公告)日：2019-02-14

申请号：US16164309

申请日：2018-10-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bo GAO ,  Dekun LIU ,  Xuming WU ,  Jianhe GAO

IPC: H04Q11/00 ,  H04J14/02 ,  H04B10/073

Abstract: The present invention discloses a passive optical network communications method, reporting, by an optical network unit, ONU, a calibration record of the ONU, where the calibration record includes an ID of a calibrated wavelength channel; sending a first message to the ONU when the OLT determines, according to the calibration record, that a target wavelength channel ID corresponding to a target wavelength channel to which the ONU needs to switch is not in the calibration record, where the first message includes a forced wavelength switching flag; and instructing the ONU to switch to the calibrated target wavelength channel. In this way, the ONU can implement wavelength switching quickly after calibrating a new wavelength channel so as to perform data communication over the calibrated new wavelength channel.

公开(公告)号：US20190123941A1

公开(公告)日：2019-04-25

申请号：US16227366

申请日：2018-12-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianhe GAO ,  Bo GAO ,  Hongguang ZHANG ,  Shengmeng FU

IPC: H04L25/03 ,  H04B10/27 ,  H04J14/08

Abstract: The present disclosure relates to the field of communications technologies, and discloses a channel training method, apparatus, and system, so as to resolve a problem in which a newly added ONU in a PON cannot be registered and go online in time. In embodiments of the present disclosure, a first moment for triggering channel training is determined; normal data is stopped sending from the first moment and a training frame is generated; and then the training frame is sent to all ONUs in a PON, so that a target ONU trains an automatic adaptive equalizer based on the training frame, where the target ONU is at least one of all the ONUs in the PON. The solutions provided in the embodiments of the present disclosure are applicable to the equalizer training the ONU.

公开(公告)号：US20130315589A1

公开(公告)日：2013-11-28

申请号：US13891683

申请日：2013-05-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bo GAO ,  Jianhe GAO

IPC: H04Q11/00

CPC classification number: H04Q11/0005 ,  H04J14/0246 ,  H04J14/0247 ,  H04J14/025 ,  H04J14/0252 ,  H04J14/0257 ,  H04J14/0258 ,  H04J14/0267 ,  H04J14/0282

Abstract: The present application provides a method for wavelength switching on a multi-wavelength passive optical network, including: duplicating, when an optical network unit needs to switch from a first wavelength channel to a second wavelength channel, downlink data to be sent to the optical network unit into multiple copies, and sending the multiple copies of the downlink data to the optical network unit separately through multiple wavelength channels, where the multiple wavelength channels include at least the first wavelength channel and the second wavelength channel; sending a downlink wavelength switching command to the optical network unit to instruct the optical network unit to switch a downlink receiving wavelength of the optical network unit to a downlink wavelength of the second wavelength channel; and stopping downlink data duplication and sending the downlink data to the optical network unit through the second wavelength channel.

Abstract translation: 本申请提供了一种用于多波长无源光网络上的波长切换的方法，包括：复制当光网络单元需要从第一波长信道切换到第二波长信道时，发送到光网络的下行链路数据 将多个波长信道包括至少第一波长信道和第二波长信道的多个波长信道分开发送下行链路数据的多个副本到光网络单元; 向所述光网络单元发送下行链路波长切换命令，指示所述光网络单元将所述光网络单元的下行接收波长切换到所述第二波长信道的下行链路波长; 并停止下行链路数据复制，并通过第二波长信道将下行链路数据发送到光网络单元。

公开(公告)号：US20160359580A1

公开(公告)日：2016-12-08

申请号：US15243627

申请日：2016-08-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bo GAO ,  Jianhe GAO

IPC: H04J14/02 ,  H04B10/60 ,  H04B10/572

CPC classification number: H04J14/0246 ,  H04J14/0247 ,  H04J14/025 ,  H04J14/0252 ,  H04J14/0257 ,  H04J14/0267 ,  H04J14/0282

Abstract: This application provides a wavelength negotiation method of a multi-wavelength passive optical network, including: receiving a wavelength status table that is broadcast by an OLT over each downstream wavelength channel of a multi-wavelength PON system, where the wavelength status table is used to indicate information about available wavelengths of the multi-wavelength PON system and statistic information of registered ONUs of a corresponding wavelength channel; selecting an upstream transmit wavelength and a downstream receive wavelength according to the wavelength status table; and reporting information about the upstream transmit wavelength and information about the downstream receive wavelength to the OLT so that the OLT refreshes the wavelength status table. This application also provides a wavelength negotiation apparatus of the multi-wavelength passive optical network and a multi-wavelength passive optical network system.

公开(公告)号：US20150098704A1

公开(公告)日：2015-04-09

申请号：US14569682

申请日：2014-12-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bo GAO ,  Huafeng LIN ,  Jianhe GAO ,  Fei YE

IPC: H04J14/02

CPC classification number: H04J14/0232 ,  H04B10/27 ,  H04J14/0246 ,  H04J14/0247 ,  H04J14/025 ,  H04J14/0252 ,  H04J14/0257 ,  H04J14/0258 ,  H04J14/0267 ,  H04J14/0269 ,  H04J14/0275 ,  H04J14/0282

Abstract: The present application provides a wavelength configuration method for a multi-wavelength passive optical network, which includes: scanning, by an ONU, a downstream receiving wavelength, and receiving, downstream wavelength information of each downstream wavelength channel that is broadcast by an OLT separately through each downstream wavelength channel of a multi-wavelength PON system; establishing, by the ONU, a downstream receiving wavelength mapping table, where an entry of the downstream receiving wavelength mapping table includes downstream receiving wavelength information, drive current information of a downstream optical receiver and receiving optical physical parameter information of the ONU; selecting, by the ONU, one downstream wavelength from the downstream wavelength information broadcast by the OLT, and setting, according to the drive current information of the downstream optical receiver recorded in a related entry of the downstream receiving wavelength mapping table, an operating wavelength of the downstream optical receiver to the selected downstream wavelength.

Abstract translation: 本申请提供了一种用于多波长无源光网络的波长配置方法，其包括：由ONU扫描下行接收波长，以及接收由OLT单独广播的每个下行波长信道的下行波长信息，分别通过 多波长PON系统的每个下行波长信道; 由ONU建立下游接收波长映射表，其中下行接收波长映射表的条目包括下行接收波长信息，下行光接收机的驱动电流信息，并接收ONU的光物理参数信息; 由ONU选择由OLT广播的下行波长信息的一个下行波长，并根据记录在下行接收波长映射表的相关条目中的下行光接收机的驱动电流信息，设定工作波长 下游光接收机到所选择的下游波长。

公开(公告)号：US20170207876A1

公开(公告)日：2017-07-20

申请号：US15474890

申请日：2017-03-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bo GAO ,  Huafeng LIN ,  Jianhe GAO ,  Fei YE

IPC: H04J14/02 ,  H04B10/27

CPC classification number: H04J14/0232 ,  H04B10/27 ,  H04J14/0246 ,  H04J14/0247 ,  H04J14/025 ,  H04J14/0252 ,  H04J14/0257 ,  H04J14/0258 ,  H04J14/0267 ,  H04J14/0269 ,  H04J14/0275 ,  H04J14/0282

Abstract: The present application provides a wavelength configuration method for a multi-wavelength passive optical network, which includes: scanning, by an ONU, a downstream receiving wavelength, and receiving, downstream wavelength information of each downstream wavelength channel that is broadcast by an OLT separately through each downstream wavelength channel of a multi-wavelength PON system; establishing, by the ONU, a downstream receiving wavelength mapping table, where an entry of the downstream receiving wavelength mapping table includes downstream receiving wavelength information, drive current information of a downstream optical receiver and receiving optical physical parameter information of the ONU; selecting, by the ONU, one downstream wavelength from the downstream wavelength information broadcast by the OLT, and setting, according to the drive current information of the downstream optical receiver recorded in a related entry of the downstream receiving wavelength mapping table, an operating wavelength of the downstream optical receiver to the selected downstream wavelength.

公开(公告)号：US20170155982A1

公开(公告)日：2017-06-01

申请号：US15431390

申请日：2017-02-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bo GAO ,  Dekun LIU ,  Xuming WU ,  Jianhe GAO

IPC: H04Q11/00 ,  H04J14/02

CPC classification number: H04Q11/0005 ,  H04B10/073 ,  H04J14/02 ,  H04J14/0242 ,  H04Q11/00 ,  H04Q11/0062 ,  H04Q2011/0016 ,  H04Q2011/0086

Abstract: The present invention discloses a passive optical network communications method: reporting, by an optical network unit, ONU, a calibration record of the ONU, where the calibration record includes an ID of a calibrated wavelength channel; sending a first message to the ONU when the OLT determines, according to the calibration record, that a target wavelength channel ID corresponding to a target wavelength channel to which the ONU needs to switch is not in the calibration record, where the first message includes a forced wavelength switching flag; and instructing the ONU to switch to the calibrated target wavelength channel. In this way, the ONU can implement wavelength switching quickly after calibrating a new wavelength channel so as to perform data communication over the calibrated new wavelength channel.

公开(公告)号：US20150125149A1

公开(公告)日：2015-05-07

申请号：US14594847

申请日：2015-01-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bo GAO ,  Jianhe GAO

IPC: H04J14/02

CPC classification number: H04J14/0246 ,  H04J14/0247 ,  H04J14/025 ,  H04J14/0252 ,  H04J14/0257 ,  H04J14/0267 ,  H04J14/0282

Abstract: This application provides a wavelength negotiation method of a multi-wavelength passive optical network, including: receiving a wavelength status table that is broadcast by an OLT over each downstream wavelength channel of a multi-wavelength PON system, where the wavelength status table is used to indicate information about available wavelengths of the multi-wavelength PON system and statistic information of registered ONUs of a corresponding wavelength channel; selecting an upstream transmit wavelength and a downstream receive wavelength according to the wavelength status table; and reporting information about the upstream transmit wavelength and information about the downstream receive wavelength to the OLT so that the OLT refreshes the wavelength status table. This application also provides a wavelength negotiation apparatus of the multi-wavelength passive optical network and a multi-wavelength passive optical network system.

Abstract translation: 该应用提供了一种多波长无源光网络的波长协商方法，包括：在多波长PON系统的每个下行波长信道上接收由OLT广播的波长状态表，其中波长状态表用于 指示关于多波长PON系统的可用波长的信息和相应波长信道的已登记ONU的统计信息; 根据波长状态表选择上行发射波长和下行接收波长; 并向OLT发送有关上行发送波长的信息和关于下行接收波长的信息，使得OLT刷新波长状态表。 该应用还提供了多波长无源光网络和多波长无源光网络系统的波长协商装置。