公开(公告)号：US10939190B2

公开(公告)日：2021-03-02

申请号：US16164309

申请日：2018-10-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bo Gao ,  Dekun Liu ,  Xuming Wu ,  Jianhe Gao

IPC: H04J14/02 ,  H04Q11/00 ,  H04B10/073

Abstract: 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.

公开(公告)号：US20200344534A1

公开(公告)日：2020-10-29

申请号：US16926070

申请日：2020-07-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuanqiu Luo ,  Bo Gao ,  Frank Effenberger ,  Xiang Liu

IPC: H04Q11/00

Abstract: An OLT comprises a processor configured to generate a first message comprising a first field instructing an ONU to report its data rate capability as at least one of 10 Gb/s, 25 Gb/s, or 50 Gb/s; a transmitter coupled to the processor and configured to transmit the first message to the ONU; and a receiver coupled to the processor and configured to receive a second message from the ONU in response to the first message, the second message comprises a second field indicating the data rate capability. A method comprises generating a first message comprising a first field instructing reporting of a data rate capability as at least one of 10 Gb/s, 25 Gb/s, or 50 Gb/s; transmitting the first message; and receiving a second message in response to the first message, the second message comprises a second field indicating the data rate capability.

公开(公告)号：US10666468B2

公开(公告)日：2020-05-26

申请号：US16227366

申请日：2018-12-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianhe Gao ,  Bo Gao ,  Hongguang Zhang ,  Shengmeng Fu

IPC: H04L25/03 ,  H04Q11/00 ,  H04B10/27 ,  H04J14/08

Abstract: 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.

公开(公告)号：US09654870B2

公开(公告)日：2017-05-16

申请号：US14708991

申请日：2015-05-11

Applicant: Huawei Technologies Co., Ltd. ,  Tsinghua University

Inventor： Bo Gao ,  Zhenyu Xiao ,  Pei Liu

IPC: H03M1/12 ,  H04R3/00 ,  H04W52/02 ,  H04L7/04 ,  H03M1/00 ,  H04L27/26

CPC classification number: H04R3/00 ,  H03M1/00 ,  H03M1/12 ,  H04L7/042 ,  H04L27/2647 ,  H04W52/0245 ,  H04W52/028 ,  H04W52/0283 ,  H04W52/0287 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/144

Abstract: The present invention provides a method, a device and a system for processing data during idle listening. The method includes: sampling, in an idle listening mode, a first analog signal by using an N-bit ADC, and sampling, in a transceiving mode, a second analog signal by using an M-bit ADC, where N and M are both integers, and N is less than M. Embodiments of the present invention can reduce power consumption of an ADC during idle listening.

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

IPC: H04B10/27 ,  H04J14/00 ,  H04L25/03

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.

公开(公告)号：US20230009542A1

公开(公告)日：2023-01-12

申请号：US17810721

申请日：2022-07-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bo Gao ,  Boning Huang ,  Yuxi Wan

IPC: H01L29/16 ,  H01L29/20 ,  H01L29/04

Abstract: Embodiments of this application relate to the field of semiconductor technologies, and provide a composite substrate and a preparation method thereof, a semiconductor device, and an electronic device. The composite substrate includes a bearer layer, a silicon carbide layer, and at least one epitaxial layer. The silicon carbide layer is disposed on the bearer layer and bonded to the bearer layer, and a material of the silicon carbide layer includes monocrystal silicon carbide. The at least one epitaxial layer is disposed on a side that is of the silicon carbide layer and that is away from the bearer layer.

公开(公告)号：US10244295B2

公开(公告)日：2019-03-26

申请号：US15406392

申请日：2017-01-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bo Gao

IPC: H04Q11/00 ,  H04B10/25 ,  H04J14/02 ,  H04B10/038

Abstract: The present invention discloses a passive optical network communications method, apparatus and system. The method includes: receiving, by an optical network unit, a first message sent by an optical line terminal, where the first message carries backup wavelength channel ID information; switching, by the optical network unit when the optical network unit detects a fault, an operating wavelength channel of the optical network unit to a backup wavelength channel identified by the backup wavelength channel ID information; and performing, by the optical network unit, data communication over the switched-to backup wavelength channel. In this way, fast protection switching of a passive optical network system is implemented and reliability of the system is improved.

公开(公告)号：US12164488B2

公开(公告)日：2024-12-10

申请号：US17525435

申请日：2021-11-12

Applicant: Huawei Technologies Co., Ltd. ,  TSINGHUA UNIVERSITY

Inventor： Guoliang Li ,  Shifu Li ,  Xuanhe Zhou ,  Bo Gao

IPC: G06F16/21 ,  G06F16/2453 ,  G06F18/23 ,  G06N3/048

Abstract: A method for determining a configuration knob of a database is disclosed, and may be applied to a database management system. In this method, vectorization coding is performed on a query statement, to obtain a target feature vector of the query statement, and then a configuration knob set for determining the database is determined based on two aspects of double-state information: the target feature vector and current status information of the database (101). The configuration knob set is used to execute N query statements. The configuration knob of the database (101) may be dynamically determined based on the query statement and the current status information of the database (101), so that good performance of the database (101) in a case of different workload requirements, for example, performance in aspects of a delay and a throughput, can be ensured.

公开(公告)号：US10855397B2

公开(公告)日：2020-12-01

申请号：US16250708

申请日：2019-01-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bo Gao ,  Shiwei Nie ,  Lei Jing ,  Zhenping Wang

IPC: H04L1/00 ,  H04B10/516 ,  H04B10/27 ,  H04L7/00 ,  H04J14/02

Abstract: A downstream data frame transmitting method includes: generating, by an optical line terminal (OLT), a downstream data frame, where the downstream data frame includes a frame header and a payload, the frame header includes a physical synchronization sequence (Psync) field, and the Psync field is used to identify the downstream data frame, where when a value of the Psync field is a first value, the Psync field is further used to indicate that payload data is protected by forward error correction (FEC); or when a value of the Psync field is a second value, the Psync field is further used to indicate that payload data is not protected by FEC; and sending, by the OLT, the downstream data frame. Embodiments of the present invention can reduce a bit error rate of a FEC indication status and improve reliability of the FEC indication status.

公开(公告)号：US10833802B2

公开(公告)日：2020-11-10

申请号：US16284989

申请日：2019-02-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bo Gao

IPC: H04L1/00 ,  H04Q11/00

Abstract: An optical line terminal or an optical network unit first obtains link communication quality of both a first physical link and a second physical link between the optical line terminal and the optical network unit, performs FEC encoding on the first physical link by using a first FEC code, and performs FEC encoding on the second physical link by using a second FEC code. The link communication quality of the first physical link is higher than that of the second physical link, and encoding performance of the second FEC code is higher than that of the first FEC code. Based on the foregoing technical solutions, a FEC encoding type may be selected flexibly based on communication quality of different physical links. FEC encoding having relatively low FEC encoding performance is used for a link in a good state, to reduce overheads, bandwidth, and energy consumption.