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1. 发明授权

US09647791B2 Wavelength configuration method and apparatus for multi-wavelength passive optical network, and multi-wavelength passive optical network system 有权
公开(公告)号：US09647791B2
公开(公告)日：2017-05-09
申请号：US14569682
申请日：2014-12-13
申请人： Huawei Technologies Co., Ltd.
发明人： Bo Gao , Huafeng Lin , Jianhe Gao , Fei Ye
IPC分类号： H04J14/00 , H04B10/20 , H04J14/02 , H04B10/08 , H04B17/00
CPC分类号： H04J14/0232 , H04B10/27 , H04J14/0246 , H04J14/0247 , H04J14/025 , H04J14/0252 , H04J14/0257 , H04J14/0258 , H04J14/0267 , H04J14/0269 , H04J14/0275 , H04J14/0282
摘要： 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.

2. 发明授权

US09438368B2 Wavelength negotiation method and apparatus of multi-wavelength passive optical network, and multi-wavelength passive optical network system 有权
标题翻译：多波长无源光网络的波长协商方法和装置，以及多波长无源光网络系统
公开(公告)号：US09438368B2
公开(公告)日：2016-09-06
申请号：US14594847
申请日：2015-01-12
申请人： Huawei Technologies Co., Ltd.
发明人： Bo Gao , Jianhe Gao
IPC分类号： H04J14/02 , H04B10/25
CPC分类号： H04J14/0246 , H04J14/0247 , H04J14/025 , H04J14/0252 , H04J14/0257 , H04J14/0267 , H04J14/0282
摘要： 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.
摘要翻译：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。

3. 发明申请

US20190081708A1 Signal Generation Method and Device 审中-公开
公开(公告)号：US20190081708A1
公开(公告)日：2019-03-14
申请号：US16185922
申请日：2018-11-09
申请人： Huawei Technologies Co., Ltd.
发明人： Shengmeng Fu , Hongguang Zhang , Jiangwei Man , Jianhe Gao
IPC分类号： H04B10/516 , H04L27/04 , H04B10/67
摘要： 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.

4. 发明授权

US10652635B2 Passive optical network communications method and apparatus, and system 有权
公开(公告)号：US10652635B2
公开(公告)日：2020-05-12
申请号：US15914655
申请日：2018-03-07
申请人： Huawei Technologies Co., Ltd.
发明人： Jianhe Gao , Minghui Tao , Zhicheng Ye , Shengmeng Fu
IPC分类号： H04L12/14 , H04Q11/00 , H04J3/16 , H04J14/02
摘要： 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.

5. 发明申请

US20180199119A1 PASSIVE OPTICAL NETWORK COMMUNICATIONS METHOD AND APPARATUS, AND SYSTEM 审中-公开
公开(公告)号：US20180199119A1
公开(公告)日：2018-07-12
申请号：US15914655
申请日：2018-03-07
申请人： Huawei Technologies Co., Ltd.
发明人： Jianhe Gao , Minghui Tao , Zhicheng Ye , Shengmeng Fu
IPC分类号： H04Q11/00 , H04J3/16 , H04J14/02
CPC分类号： H04Q11/0067 , H04J3/1694 , H04J14/0226 , H04J14/0232 , H04J14/0246 , H04Q11/0071
摘要： 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.

6. 发明授权

US09436021B2 Tunable optical filter, tunable optical component, and multi-wavelength passive optical network system 有权
标题翻译：可调光滤波器，可调谐光学元件，以及多波长无源光网络系统
公开(公告)号：US09436021B2
公开(公告)日：2016-09-06
申请号：US14577947
申请日：2014-12-19
申请人： Huawei Technologies Co., Ltd.
发明人： Fei Ye , Jianhe Gao , Xuejin Yan
IPC分类号： G02F1/01 , G02B6/42 , H04B10/61
CPC分类号： G02F1/0147 , G02B6/4215 , G02B6/4246 , H04B10/40 , H04B10/615 , H04J14/0282
摘要： 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.
摘要翻译：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。

7. 发明申请

US20150104199A1 TUNABLE OPTICAL FILTER, TUNABLE OPTICAL COMPONENT, AND MULTI-WAVELENGTH PASSIVE OPTICAL NETWORK SYSTEM 有权
标题翻译：可控光滤波器，可控光学元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
申请人： Huawei Technologies Co., Ltd.
发明人： Fei Ye , Jianhe Gao , Xuejin Yan
IPC分类号： G02F1/01 , H04B10/61
CPC分类号： G02F1/0147 , G02B6/4215 , G02B6/4246 , H04B10/40 , H04B10/615 , H04J14/0282
摘要： 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.
摘要翻译：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。

8. 发明授权

US10939190B2 Passive optical network communications method, apparatus and system 有权
公开(公告)号：US10939190B2
公开(公告)日：2021-03-02
申请号：US16164309
申请日：2018-10-18
申请人： Huawei Technologies Co., Ltd.
发明人： Bo Gao , Dekun Liu , Xuming Wu , Jianhe Gao
IPC分类号： H04J14/02 , H04Q11/00 , H04B10/073
摘要： 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.

9. 发明授权

US10666468B2 Channel training method, apparatus, and system 有权
公开(公告)号：US10666468B2
公开(公告)日：2020-05-26
申请号：US16227366
申请日：2018-12-20
申请人： Huawei Technologies Co., Ltd.
发明人： Jianhe Gao , Bo Gao , Hongguang Zhang , Shengmeng Fu
IPC分类号： H04L25/03 , H04Q11/00 , H04B10/27 , H04J14/08
摘要： 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.

10. 发明授权

US10129614B2 Passive optical network communications method, apparatus and system 有权
公开(公告)号：US10129614B2
公开(公告)日：2018-11-13
申请号：US15431390
申请日：2017-02-13
申请人： Huawei Technologies Co., Ltd.
发明人： Bo Gao , Dekun Liu , Xuming Wu , Jianhe Gao
IPC分类号： H04J14/02 , H04Q11/00 , H04B10/073
摘要： 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.

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