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公开(公告)号：US20220271858A1
公开(公告)日：2022-08-25
申请号：US17620216
申请日：2020-06-04
Applicant: ZTE Corporation
Inventor： Weiliang ZHANG , Mingsheng LI , Bo YANG , Liquan YUAN
Abstract: Provided are wavelength switching and configuration methods and devices for a Passive Optical Network (PON). The switching method includes the following operations. An Optical Network Unit (ONU) responds to a ranging request message sent by an Optical Line Terminal (OLT) on a first uplink wavelength supported by the ONU. The ONU receives ranging information sent by the OLT. The ONU uses the received ranging information as ranging information about a second uplink wavelength of the ONU, and performs data transmission on the second uplink wavelength according to a bandwidth allocation from the OLT. A path transmission time difference caused by a wavelength interval between the first uplink wavelength and the second uplink wavelength is less than a corresponding fault tolerance range when the OLT receives data. The ranging information is obtained by the OLT according to a ranging response sent by the ONU on the first uplink wavelength.
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2.发明公开公开(公告)号：US20240283545A1
公开(公告)日：2024-08-22
申请号：US18571343
申请日：2022-06-16
Applicant: ZTE CORPORATION
Inventor： Bo YANG
CPC classification number: H04B10/675 , H04B10/6972 , H04Q11/0067
Abstract: The present disclosure provides an optical signal receiving apparatus, an optical line terminal, an optical signal receiving system, an optical signal receiving method, and a computer-readable storage medium. The optical signal receiving apparatus includes: a first filter configured to perform wavelength division processing on original optical signals, and perform at least one of following operations: outputting at least one of a first optical signal corresponding to a first wavelength range or a second optical signal corresponding to a second wavelength range; an amplifier configured to amplify the first optical signal; a second filter configured to receive the amplified first optical signal, and perform noise reduction processing on the amplified first optical signal; and the detection element is configured to receive and convert at least one of the first optical signal subjected to the noise reduction processing or the second optical signal into a transmission electrical signal.
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公开(公告)号：US20240121006A1
公开(公告)日：2024-04-11
申请号：US18264667
申请日：2021-12-08
Applicant: ZTE CORPORATION
Inventor： Jingsong BEI , Zhengxuan LI , Yiming ZHONG , Bo YANG , Yingxiong SONG
IPC: H04B10/61
CPC classification number: H04B10/613 , H04B10/6166
Abstract: A coherent detection method and device, and an optical transmission system are disclosed. The method may include: acquiring an optical transmission signal and a local oscillator signal, where a frequency value of the local oscillator signal differs from a frequency value of the optical transmission signal by a preset offset frequency value, the preset offset frequency value being smaller than a symbol rate value of the optical transmission signal; obtaining a coupled signal according to the optical transmission signal and the local oscillator signal; converting the coupled signal into an analog signal; sampling the analog signal according to a preset sampling frequency value and converting the analog signal into a plurality digital signals; and processing two digital signals among the plurality of digital signals so that a phase difference between the two digital signals to is 90 degrees.
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4.发明申请公开(公告)号：US20220060312A1
公开(公告)日：2022-02-24
申请号：US17309883
申请日：2019-12-27
Applicant: ZTE Corporation
Inventor： Guoyang XU , Huannan MA , Bo YANG
Abstract: An optical link channel auto-negotiation method and apparatus, a non-transitory computer-readable storage medium are disclosed. The optical link channel auto-negotiation method may include at least one of the following: configuring a receiving rate, determining whether a receive clock recovered from received data by a physical layer (PHY) module is locked, and in response to determining that the receive clock recovered from the received data by the PHY module is locked, determining that the receiving rate is configured correctly; configuring a first predetermined parameter in response to determining that the receiving rate is configured correctly, determining whether code block data of the PHY module is in a synchronized state, and in response to determining that the code block data of the PHY module is in a synchronized state, determining that the first predetermined parameter is configured correctly.
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公开(公告)号：US20200235840A1
公开(公告)日：2020-07-23
申请号：US16081755
申请日：2016-07-19
Applicant: ZTE CORPORATION
Inventor： Bo YANG , Xingang HUANG , Mingsheng LI
Abstract: A method for managing a multi-wavelength passive optical network, comprising: an optical module extracting a module management signal from a reception signal input from an optical signal interface, where the module management signal carries a management message related to the optical module. The solution can solve the problem that an optical module of a multi-wavelength passive optical network in the related art cannot support the smooth upgrade of a related device to the multi-wavelength passive optical network.
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Patent Agency Ranking
公开(公告)号：US20220353591A1
公开(公告)日：2022-11-03
申请号：US17865318
申请日：2022-07-14
Applicant: ZTE CORPORATION
Inventor： Wei YANG , Bo YANG , Huannan MA , Xiangrong CHEN , Yufeng LI , Liquan YUAN
Abstract: Provided are a link establishment method and apparatus and a computer-readable storage medium. The link establishment method includes: exchanging optical link auto-negotiation information with a terminal device through an optical link auto-negotiation channel; and in a case where exchanging the optical link auto-negotiation information is finished, establishing at least one of a traffic data channel or an optical link auto-negotiation channel; where the optical link auto-negotiation channel is independent of the traffic data channel or the optical link auto-negotiation channel; and the optical link auto-negotiation information includes at least one of information about an operating wavelength channel of the terminal device, an enabled or disabled state of forward error correction with the terminal device, a forward error correction type with the terminal device, or an operating mode of the auxiliary management channel.
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公开(公告)号：US20220085907A1
公开(公告)日：2022-03-17
申请号：US17419335
申请日：2019-12-27
Applicant: ZTE CORPORATION
Inventor： Wei YANG , Hongliang TIAN , Aimin CHEN , Bo YANG
Abstract: The present disclosure provides a data transceiving method, a data transceiving device, a wavelength configuration method and a wavelength configuration device. The data transceiving method includes that a first optical module receives control information sent by a second optical module; the first optical module adjusts transmission and receiving wavelengths according to the control information; and the first optical module executes transmission and receiving of data with the second optical module according to the adjusted transmission and receiving wavelengths.
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公开(公告)号：US20200260164A1
公开(公告)日：2020-08-13
申请号：US16647039
申请日：2018-09-13
Applicant: ZTE CORPORATION
Inventor： Dan GENG , Bo YANG , Xingang HUANG , Zhuang MA , Liquan YUAN , Weiliang ZHANG
Abstract: Provided are a method for managing an ONU in a passive optical network, an OLT and a system. The method includes determining a first quiet window and a second quiet window, and allocating the first quiet window to an ONU within a first preset distance range and allocating the second quiet window to an ONU within a second preset distance range, where the distance between the optical line terminal (OLT) and the ONU within the first preset distance range is less than the distance between the OLT and the ONU within the second preset distance range.
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9.发明公开公开(公告)号：US20240291569A1
公开(公告)日：2024-08-29
申请号：US18571403
申请日：2022-06-16
Applicant: ZTE CORPORATION
Inventor： Bo YANG , Xingang HUANG , Xingyu LEI
CPC classification number: H04B10/503 , H01S3/06754
Abstract: The present disclosure discloses an optical signal receiving apparatus, an optical line terminal, an optical signal receiving system, an optical signal receiving method, and a computer-readable storage medium. The optical signal receiving apparatus is configured to receive optical signals at multiple speeds, and includes: a filter and at least one detector; the filter is disposed following an amplifier, filter characteristics of the filter are configured according to a preset wavelength range, and the filter is configured to filter out noise in optical signals amplified by the amplifier and perform wavelength division processing on the optical signals to obtain at least one optical signal corresponding to the preset wavelength range; and the at least one detector is configured to convert the at least one optical signal into an electrical signal.
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公开(公告)号：US20240187106A1
公开(公告)日：2024-06-06
申请号：US18546886
申请日：2021-12-08
Applicant: ZTE CORPORATION
Inventor： Jingsong BEI , Zhengxuan LI , Yiming ZHONG , Bo YANG
IPC: H04B10/61
CPC classification number: H04B10/6163 , H04B10/6165
Abstract: A coherent detection method, apparatus, and system are disclosed. The method may include: receiving an intensity-modulated optical signal transmitted by a transmitting end, where the intensity-modulated optical signal is obtained by intensity modulation performed by the transmitting end on an original signal; performing phase modulation on a local oscillator optical signal to obtain a phase-modulated local oscillator optical signal; and mixing the intensity-modulated optical signal and the phase-modulated local oscillator optical signal, and then performing photoelectric detection, analog-to-digital conversion, and digital signal receiving processing in sequence to recover the original signal.
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