公开(公告)号：US09647791B2

公开(公告)日：2017-05-09

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: H04J14/00 ,  H04B10/20 ,  H04J14/02 ,  H04B10/08 ,  H04B17/00

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：US09438368B2

公开(公告)日：2016-09-06

申请号：US14594847

申请日：2015-01-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bo Gao ,  Jianhe Gao

IPC: H04J14/02 ,  H04B10/25

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。

公开(公告)号：US20190081708A1

公开(公告)日：2019-03-14

申请号：US16185922

申请日：2018-11-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shengmeng Fu ,  Hongguang Zhang ,  Jiangwei Man ,  Jianhe Gao

IPC: H04B10/516 ,  H04L27/04 ,  H04B10/67

Abstract: A method includes: sending, by a signal transmitting device, a first PAM signal to a signal receiving device, where the first PAM signal includes N first level amplitudes, and N≥3; receiving, by the transmitting device, feedback parameters sent by the receiving device, where the feedback parameters are determined based on the first PAM signal; determining, by the transmitting device, N target level amplitudes based on the feedback parameters, where intervals between every two adjacent target level amplitudes in the N target level amplitudes are different from each other; and generating, by the transmitting device based on the N target level amplitudes, a second PAM signal that needs to be sent to the receiving device.

公开(公告)号：US10652635B2

公开(公告)日：2020-05-12

申请号：US15914655

申请日：2018-03-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianhe Gao ,  Minghui Tao ,  Zhicheng Ye ,  Shengmeng Fu

IPC: H04L12/14 ,  H04Q11/00 ,  H04J3/16 ,  H04J14/02

Abstract: Embodiments of the present disclosure provide a passive optical network communications method and apparatus, and a system. The method includes: determining a wavelength channel group of an optical network unit (ONU) and a wavelength channel in the wavelength channel group; and sending a first message to the ONU, where the first message carries identification information of the wavelength channel group and identification information of the wavelength channel in the wavelength channel group. In the embodiments of the present disclosure, such a logical channel group as a wavelength channel group is established, and when a channel in a channel group is faulty, a scheduling module of an OLT can rapidly and easily reallocate a service to another member in the channel group, so that channel interaction is avoided. Therefore, bandwidth scheduling efficiency and bandwidth utilization of a PON system are higher.

公开(公告)号：US20180199119A1

公开(公告)日：2018-07-12

申请号：US15914655

申请日：2018-03-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianhe Gao ,  Minghui Tao ,  Zhicheng Ye ,  Shengmeng Fu

IPC: H04Q11/00 ,  H04J3/16 ,  H04J14/02

CPC classification number: H04Q11/0067 ,  H04J3/1694 ,  H04J14/0226 ,  H04J14/0232 ,  H04J14/0246 ,  H04Q11/0071

Abstract: Embodiments of the present disclosure provide a passive optical network communications method and apparatus, and a system. The method includes: determining a wavelength channel group of an optical network unit (ONU) and a wavelength channel in the wavelength channel group; and sending a first message to the ONU, where the first message carries identification information of the wavelength channel group and identification information of the wavelength channel in the wavelength channel group. In the embodiments of the present disclosure, such a logical channel group as a wavelength channel group is established, and when a channel in a channel group is faulty, a scheduling module of an OLT can rapidly and easily reallocate a service to another member in the channel group, so that channel interaction is avoided. Therefore, bandwidth scheduling efficiency and bandwidth utilization of a PON system are higher.

公开(公告)号：US09436021B2

公开(公告)日：2016-09-06

申请号：US14577947

申请日：2014-12-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fei Ye ,  Jianhe Gao ,  Xuejin Yan

IPC: G02F1/01 ,  G02B6/42 ,  H04B10/61

CPC classification number: G02F1/0147 ,  G02B6/4215 ,  G02B6/4246 ,  H04B10/40 ,  H04B10/615 ,  H04J14/0282

Abstract: The present application provides a tunable optical filter, including: a substrate, a tunable filter unit, a temperature control unit, and an enclosure, where: the substrate, the tunable filter unit, and the temperature control unit are placed inside the enclosure, where the enclosure includes a light incidence window and a light emergence window; the substrate is disposed adjacent to the light incidence window or the light emergence window, and configured to support the tunable filter unit; the temperature control unit is disposed on a surface of the tunable filter unit, and configured to adjust a channel wavelength of the tunable filter unit by means of temperature control; and optical paths of the light incidence window, the tunable filter unit and the light emergence window are aligned. The present application further provides an optical receive component, an optical transceiver component, and a multi-wavelength passive optical network system.

Abstract translation: 本申请提供了一种可调谐光学滤波器，包括：基板，可调滤波器单元，温度控制单元和外壳，其中：基板，可调滤波器单元和温度控制单元放置在外壳内，其中 外壳包括光入射窗和光出射窗; 基板被布置成与光入射窗或光出射窗相邻，并且被配置为支撑可调滤光器单元; 温度控制单元设置在可调滤波器单元的表面上，并且被配置为通过温度控制来调节可调滤波器单元的通道波长; 光入射窗的光路，可调滤光器单元和光出射窗对齐。 本申请还提供了光接收组件，光收发器组件和多波长无源光网络系统。

公开(公告)号：US20150104199A1

公开(公告)日：2015-04-16

申请号：US14577947

申请日：2014-12-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fei Ye ,  Jianhe Gao ,  Xuejin Yan

IPC: G02F1/01 ,  H04B10/61

CPC classification number: G02F1/0147 ,  G02B6/4215 ,  G02B6/4246 ,  H04B10/40 ,  H04B10/615 ,  H04J14/0282

Abstract: The present application provides a tunable optical filter, including: a substrate, a tunable filter unit, a temperature control unit, and an enclosure, where: the substrate, the tunable filter unit, and the temperature control unit are placed inside the enclosure, where the enclosure includes a light incidence window and a light emergence window; the substrate is disposed adjacent to the light incidence window or the light emergence window, and configured to support the tunable filter unit; the temperature control unit is disposed on a surface of the tunable filter unit, and configured to adjust a channel wavelength of the tunable filter unit by means of temperature control; and optical paths of the light incidence window, the tunable filter unit and the light emergence window are aligned. The present application further provides an optical receive component, an optical transceiver component, and a multi-wavelength passive optical network system.

Abstract translation: 本申请提供了一种可调谐光学滤波器，包括：基板，可调滤波器单元，温度控制单元和外壳，其中：基板，可调滤波器单元和温度控制单元放置在外壳内，其中 外壳包括光入射窗和光出射窗; 基板被布置成与光入射窗或光出射窗相邻，并且被配置为支撑可调滤光器单元; 温度控制单元设置在可调滤波器单元的表面上，并且被配置为通过温度控制来调节可调滤波器单元的通道波长; 光入射窗的光路，可调滤光器单元和光出射窗对齐。 本申请还提供了光接收组件，光收发器组件和多波长无源光网络系统。

公开(公告)号：US10939190B2

公开(公告)日：2021-03-02

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: H04J14/02 ,  H04Q11/00 ,  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：US10666468B2

公开(公告)日：2020-05-26

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 ,  H04Q11/00 ,  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：US10129614B2

公开(公告)日：2018-11-13

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: H04J14/02 ,  H04Q11/00 ,  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.