公开(公告)号：US20190116404A1

公开(公告)日：2019-04-18

申请号：US16218665

申请日：2018-12-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianyu ZHENG ,  Shengping LI ,  Xuming WU

IPC: H04Q11/00

Abstract: Embodiments relate to the field of PON technologies, and provide a method, apparatus, and system. The method includes: receiving capability information that is sent by an ONU by using a first preamble; calculating a tap coefficient based on the received first preamble if the capability information indicates that the ONU has an equalization capability; sending the tap coefficient to the ONU, where the ONU updates a tap coefficient of a first equalizer in the ONU based on the received tap coefficient, and when subsequently sending upstream data, sends, by using a second preamble, the upstream data equalized by using the first equalizer, and a length of the second preamble is less than a length of the first preamble; receiving the upstream data; and equalizing the received upstream data based on the second preamble by using a second equalizer in an OLT. In this way, upstream overheads can be reduced.

公开(公告)号：US20230127899A1

公开(公告)日：2023-04-27

申请号：US17972823

申请日：2022-10-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianyu ZHENG ,  Yu TIAN ,  Shimin GAO

IPC: H04B10/077 ,  H04B10/032

Abstract: This application discloses an optical network system, a management device, an optical transmission apparatus, and a communications device, and belongs to the field of optical network technologies. A first communications device in the optical network system is configured to send physical information of the first communications device to a second communications device, where the physical information includes first module information of a first optical transmission apparatus. The second communications device is configured to determine a working status of the optical network system based on the first module information, second module information of a second optical transmission apparatus, and link information of an optical fiber link.

公开(公告)号：US20190222313A1

公开(公告)日：2019-07-18

申请号：US16368491

申请日：2019-03-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianyu ZHENG ,  Shengping LI

IPC: H04B10/079 ,  H04B17/21 ,  H04B17/10

Abstract: The present invention provides a signal processing apparatus, an optical line terminal, and a communications system. 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, the signal amplification and equalization unit 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, the N direct-current offset calibration loop units 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. The present invention can reduce an LA burst settling time, thereby reducing physical overheads of a link.