公开(公告)号：US11764809B2

公开(公告)日：2023-09-19

申请号：US17930523

申请日：2022-09-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaofei Zeng ,  Lei Jing ,  Lun Zhang

IPC: H03M13/00 ,  H03M13/21 ,  H04L1/00

CPC classification number: H03M13/21 ,  H03M13/613 ,  H04L1/0045

Abstract: An information processing apparatus includes: a decoding module, configured to receive M first codewords from at least one peer device, where each first codeword includes first service data with a K-unit length and an error correction code with an R-unit length, where the decoding module is further configured to decode the M first codewords to obtain M second codewords, where a length of each second codeword is a sum of the K-unit length and the R-unit length, each second codeword includes second service data with the K-unit length and error correction information, the second service data is error-corrected first service data; and a classification and statistics collection module, configured to determine a bit error rate of the first service data based on the error correction information.

公开(公告)号：US20230079705A1

公开(公告)日：2023-03-16

申请号：US17984325

申请日：2022-11-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Huafeng Lin ,  Enyu Zhou ,  Xiaofei Zeng

IPC: H04Q11/00 ,  H04B10/61

Abstract: This application provides a port detection method and apparatus. In the technical solutions in this application, an OLT or an ONU may determine, based on at least two wavelengths and a preset correspondence, port information that is of an optical splitter and that corresponds to the ONU. That is, a branch port directly or indirectly connected to the ONU is defined by using the at least two wavelengths. In this way, different branch ports can be distinguished by using combinations of a plurality of wavelengths, to define a large quantity of branch ports of the optical splitter by using free combinations of a small quantity of wavelengths.

公开(公告)号：US20210194588A1

公开(公告)日：2021-06-24

申请号：US17195920

申请日：2021-03-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xuming Wu ,  Shengping Li ,  Lei Zhou ,  Xiaofei Zeng

IPC: H04B10/27 ,  H04L7/00 ,  H04L25/03

Abstract: A data transmission method includes receiving, by an optical line terminal (OLT) from an optical network unit (ONU), uplink burst data that includes a synchronization data block and a payload, where the synchronization data block includes first synchronization data, wherein the first synchronization data includes a first preamble and an ONU identifier, and a first bandwidth occupied by the first frequency distribution of the first synchronization data is narrower than a second bandwidth occupied by the second frequency distribution of the payload, and obtaining, by the OLT from the first synchronization data, the ONU identifier.

公开(公告)号：US10887677B2

公开(公告)日：2021-01-05

申请号：US16520029

申请日：2019-07-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shengmeng Fu ,  Yu Xiong ,  Jiangwei Man ,  Chengyan Wang ,  Xiaofei Zeng ,  Li Zeng

IPC: H04Q11/00 ,  H04B10/69

Abstract: The present disclosure relates to optical receivers. One example optical receiver includes an optoelectronic detector, a transimpedance amplification (TIA) circuit, a single-ended-to-differential converter, an I/O interface, and a controller. The optoelectronic detector, having bandwidth lower than required system transmission bandwidth, converts an optical signal into a current signal. The TIA circuit compensates gain for the received current signal based on a received control signal to obtain a voltage signal, where a frequency response value of the current signal within first bandwidth is greater than that within the bandwidth of the optoelectronic detector, and any frequency in the first bandwidth is not lower than an upper cut-off frequency of the optoelectronic detector. The single-ended-to-differential converter converts the voltage signal into a differential voltage signal. The I/O interface outputs the differential voltage signal. The controller generates the control signal based on the differential voltage signal.

公开(公告)号：US10756841B2

公开(公告)日：2020-08-25

申请号：US16418886

申请日：2019-05-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huafeng Lin ,  Jinrong Yin ,  Dianbo Zhao ,  Xifeng Wan ,  Shiwei Nie ,  Gang Zheng ,  Zhijing Luo ,  Xiaofei Zeng ,  Jun Luo

IPC: H04J14/02

Abstract: The present disclosure relates to passive optical network (PON) systems, optical line terminals (OTLs), and optical network units (ONUs). One example PON system includes an OLT and at least two ONUs. The OLT and the ONUs exchange data on one downstream channel and two upstream channels. The OLT sends downstream data to each ONU on the downstream channel, where the downstream data includes an upstream bandwidth grant used to control each ONU to send upstream data. Each ONU receives the downstream data on the downstream channel, and sends the upstream data on a first upstream channel or a second upstream channel based on the upstream bandwidth grant included in the downstream data. The OLT receives, on the first upstream channel and the second upstream channel, the upstream data sent by each ONU, where a registration function is disabled on the first upstream channel, and enabled on the second upstream channel.

公开(公告)号：US12149337B2

公开(公告)日：2024-11-19

申请号：US17827467

申请日：2022-05-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xuming Wu ,  Shiwei Nie ,  Xiaofei Zeng ,  Dekun Liu ,  Gang Zheng ,  Jun Zhou

IPC: H04J14/02 ,  H04L9/40

Abstract: An upstream resource grant method, a device, a passive optical network, and a computer-readable storage medium are provided. The upstream resource grant method includes: obtaining, by an optical line terminal, an upstream grant message on which transformation processing has been performed, wherein a transformation parameter used for the transformation processing includes a physical identity of an optical network unit (ONU); and sending, by the optical line terminal, the upstream grant message on which the transformation processing has been performed, wherein the upstream grant message carries an upstream resource grant indication of the optical network unit, and the upstream resource grant indication indicates an upstream resource granted to the optical network unit. According to this application, an occurrence probability of a rogue ONU phenomenon is reduced, thereby improving service running stability of a PON system.

公开(公告)号：US20240121004A1

公开(公告)日：2024-04-11

申请号：US18390791

申请日：2023-12-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xuming Wu ,  Shengping Li ,  Lei Zhou ,  Xiaofei Zeng

IPC: H04B10/27 ,  H04L7/00 ,  H04L25/03

CPC classification number: H04B10/27 ,  H04L7/0075 ,  H04L25/03878

Abstract: A data transmission method includes receiving, by an optical line terminal (OLT) from an optical network unit (ONU), uplink burst data that includes a synchronization data block and a payload, where the synchronization data block includes first synchronization data, wherein the first synchronization data includes a first preamble and an ONU identifier, and a first bandwidth occupied by the first frequency distribution of the first synchronization data is narrower than a second bandwidth occupied by the second frequency distribution of the payload, and obtaining, by the OLT from the first synchronization data, the ONU identifier.

公开(公告)号：US11909446B2

公开(公告)日：2024-02-20

申请号：US17962840

申请日：2022-10-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xuming Wu ,  Shengping Li ,  Lei Zhou ,  Xiaofei Zeng

IPC: H04B10/27 ,  H04L7/00 ,  H04L25/03

CPC classification number: H04B10/27 ,  H04L7/0075 ,  H04L25/03878

Abstract: A data transmission method includes receiving, by an optical line terminal (OLT) from an optical network unit (ONU), uplink burst data that includes a synchronization data block and a payload, where the synchronization data block includes first synchronization data, wherein the first synchronization data includes a first preamble and an ONU identifier, and a first bandwidth occupied by the first frequency distribution of the first synchronization data is narrower than a second bandwidth occupied by the second frequency distribution of the payload, and obtaining, by the OLT from the first synchronization data, the ONU identifier.

公开(公告)号：US20220360356A1

公开(公告)日：2022-11-10

申请号：US17814324

申请日：2022-07-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Huafeng Lin ,  Wei Ling ,  Xiaofei Zeng

IPC: H04J14/02 ,  H04B10/294 ,  H04B10/572 ,  H04Q11/00

Abstract: Embodiments of this application provide an OLT, an ONU, and a system. In a downlink direction, the first OLT is configured to convert received downlink data packets of M1 paths into one downlink optical signal whose wavelength is λo, and the first ONU is configured to receive the downlink optical signal, and output a target user data packet after processing the downlink optical signal. In an uplink direction, the first ONU is configured to convert received uplink data packets into an uplink optical signal whose wavelength is λi, and the first OLT is configured to receive a plurality of uplink optical signals of different wavelengths, and output user data packets of a corresponding quantity of paths after processing.

公开(公告)号：US20160308613A1

公开(公告)日：2016-10-20

申请号：US15196480

申请日：2016-06-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaofei Zeng ,  Sanzhong Li ,  Gang Zheng

IPC: H04B10/079 ,  H04J14/08 ,  H04B10/564 ,  H04B10/25 ,  H04B10/40

CPC classification number: H04B10/07955 ,  H04B10/272 ,  H04J14/08

Abstract: Embodiments disclose a method and an apparatus for detecting power of an uplink optical signal, an optical line terminal, and an optical network system. The method includes: separately generating a triggering signal that is used for detecting optical power for each uplink optical signal among multiple uplink optical signals to be detected, where the triggering signal of each uplink optical signal has same duration. The method also includes separately detecting power of each uplink optical signal in the duration of the triggering signal of each uplink optical signal.

Abstract translation: 实施方式公开了一种用于检测上行链路光信号的功率的方法和装置，光线路终端和光网络系统。 该方法包括：在每个上行链路光信号的触发信号具有相同的持续时间的情况下，分别产生用于检测要检测的多个上行光信号中的每个上行光信号的光功率的触发信号。 该方法还包括在每个上行链路光信号的触发信号的持续时间内分别检测每个上行光信号的功率。