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公开(公告)号：US11962344B2
公开(公告)日：2024-04-16
申请号：US17682836
申请日：2022-02-28
Applicant: Huawei Technologies Co., Ltd.
Inventor： Kuo Zhang , Lei Zhou , Borui Li , Shengping Li
IPC: H04B10/079
CPC classification number: H04B10/0795
Abstract: Embodiments of this application provide a method and an apparatus for obtaining a transmitter test parameter, and a storage medium. The method includes: performing waveform sampling on an optical signal sent by a transmitter, to obtain a sampled electrical signal, obtaining a first noise amount associated with the sampled electrical signal based on a preset initial noise ratio parameter and a level amplitude of the sampled electrical signal, and obtaining a second noise amount associated with an ideal electrical signal based on the initial noise ratio parameter and a level amplitude of the ideal electrical signal. According to the application, a noise amount associated with a level amplitude of a sampled electrical signal is obtained without limiting a type of a receiver that performs a consistency test on a transmitter by using a transmitter test parameter.
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公开(公告)号：US11936430B2
公开(公告)日：2024-03-19
申请号：US18065281
申请日：2022-12-13
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Lei Zhou , Shiwei Nie , Shengping Li , Bo Gao
CPC classification number: H04B10/27 , H04J14/00 , H04L25/03878 , H04J2203/0046 , H04J2203/0051
Abstract: Embodiments of this application disclose a board, an optical module, a media access control (MAC) chip, a digital signal processor (DSP), and an information processing method. The board in the embodiments of this application includes a MAC chip, a DSP, and an equalizer. The MAC chip is configured to send first information to the DSP at an optical network unit (ONU) online stage, where the first information includes a first ONU identifier. The DSP is configured to receive the first information, and determine a first reference equalization parameter, where the first reference equalization parameter is related to the first ONU identifier. The DSP is further configured to set an equalization parameter of the equalizer to the first reference equalization parameter.
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公开(公告)号：US11509395B2
公开(公告)日：2022-11-22
申请号：US17195920
申请日：2021-03-09
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xuming Wu , Shengping Li , Lei Zhou , Xiaofei Zeng
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.
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公开(公告)号：US11855756B2
公开(公告)日：2023-12-26
申请号：US17707534
申请日：2022-03-29
Applicant: Huawei Technologies Co., Ltd.
Inventor： Shengping Li , Lei Jing , Jun Zhou , Xuming Wu
CPC classification number: H04J3/0638 , H04J14/02
Abstract: A status control method, applied to an optical network unit (ONU) or an optical network terminal (ONT) of a passive optical network (PON) includes: receiving a first downlink data frame, where the first downlink data frame includes data of N different rates and indication information, the indication information includes length information of data of each rate in the first downlink data frame, and N≥2; determining length information of first data in the data of the N different rates, where a rate of the first data is higher than a working rate of a clock and data recovery (CDR) module; and generating control information based on the length information of the first data, to control the CDR module to be in a specified state within a period of time corresponding to the length information of the first data.
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公开(公告)号：US11711152B2
公开(公告)日：2023-07-25
申请号：US17722907
申请日：2022-04-18
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Lei Jing , Junye Jin , Tianhai Chang , Shengping Li , Yuanbing Cheng , Huafeng Lin
CPC classification number: H04B10/672
Abstract: Example optical devices are described. One example optical device includes a receiver. The receiver includes a photodetector, a first amplifier, a second amplifier, and a controller, where the photodetector is coupled to the first amplifier, the first amplifier is coupled to the second amplifier, and the first amplifier and the second amplifier are separately coupled to the controller. The controller is configured to control a gain of the first amplifier and a gain of the second amplifier based on a preset arrival time of an optical signal and a gain intensity corresponding to the optical signal. The photodetector is configured to receive the optical signal and convert the optical signal into a current signal. The first amplifier is configured to convert the current signal into a first voltage signal. The second amplifier is configured to convert the first voltage signal into a second voltage signal.
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Patent Agency Ranking
公开(公告)号：US20230044724A1
公开(公告)日：2023-02-09
申请号：US17962840
申请日：2022-10-10
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xuming Wu , Shengping Li , Lei Zhou , Xiaofei Zeng
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.
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公开(公告)号：US20230116204A1
公开(公告)日：2023-04-13
申请号：US18065281
申请日：2022-12-13
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Lei Zhou , Shiwei Nie , Shengping Li , Bo Gao
Abstract: Embodiments of this application disclose a board, an optical module, a media access control (MAC) chip, a digital signal processor (DSP), and an information processing method. The board in the embodiments of this application includes a MAC chip, a DSP, and an equalizer. The MAC chip is configured to send first information to the DSP at an optical network unit (ONU) online stage, where the first information includes a first ONU identifier. The DSP is configured to receive the first information, and determine a first reference equalization parameter, where the first reference equalization parameter is related to the first ONU identifier. The DSP is further configured to set an equalization parameter of the equalizer to the first reference equalization parameter.
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公开(公告)号：US20220222972A1
公开(公告)日：2022-07-14
申请号：US17709036
申请日：2022-03-30
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jianyu Zheng , Shengping Li , Ting Yang
IPC: G06V40/18 , H04B10/532 , H04B10/54 , G06V10/75 , G06V40/19
Abstract: A conformance testing method including: obtaining a testing symbol pattern in an optical signal; performing equalization compensation on the testing symbol pattern; generating a testing eye pattern; calculating a value of a first parameter based on the testing eye pattern and a noise enhancement coefficient, where the first parameter is used to determine a transmitter dispersion eye pattern closure degree of the optical transmitter; and when the value of the first parameter is less than or equal to a preset threshold, determining that conformance testing on the optical signal succeeds.
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公开(公告)号：US10574353B2
公开(公告)日：2020-02-25
申请号：US16368491
申请日：2019-03-28
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jianyu Zheng , Shengping Li
IPC: H04B10/00 , H04B10/079 , H04B17/10 , H04B17/21
Abstract: A signal processing apparatus, an optical line terminal, and a communications system are provided. The signal processing apparatus includes a signal input interface, a signal output interface, a reset signal generation unit, a signal amplification and equalization unit, an enable signal generation unit, and N direct-current offset calibration loop units. The signal input interface is connected to the signal amplification and equalization unit, which is connected to the signal output interface and the enable signal generation unit; the enable signal generation unit is connected to the N direct-current offset calibration loop units, which are connected to the signal amplification and equalization unit; and the reset signal generation unit is connected to the N direct-current offset calibration loop units. Embodiments of the present invention are directed to reduce an LA burst settling time, thereby reducing physical overheads of a link.
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公开(公告)号：US11764871B2
公开(公告)日：2023-09-19
申请号：US17709036
申请日：2022-03-30
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jianyu Zheng , Shengping Li , Ting Yang
IPC: G06V40/18 , H04B10/079 , H04B10/532 , H04B10/54 , G06V40/19
CPC classification number: H04B10/0799 , G06V40/19 , G06V40/197 , H04B10/532 , H04B10/54
Abstract: A conformance testing method including: obtaining a testing symbol pattern in an optical signal; performing equalization compensation on the testing symbol pattern; generating a testing eye pattern; calculating a value of a first parameter based on the testing eye pattern and a noise enhancement coefficient, where the first parameter is used to determine a transmitter dispersion eye pattern closure degree of the optical transmitter; and when the value of the first parameter is less than or equal to a preset threshold, determining that conformance testing on the optical signal succeeds.
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