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    Power negotiation method for power over ethernet, power sourcing equipment, system, and storage medium
    1.
    发明授权
    Power negotiation method for power over ethernet, power sourcing equipment, system, and storage medium 有权

    公开(公告)号：US12231249B2

    公开(公告)日：2025-02-18

    申请号：US18148319

    申请日：2022-12-29

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Shiyong Fu ,  Zhenyu Song

    IPC: H04L12/10 ,  G06F1/26

    Abstract: A power negotiation method for power over Ethernet, power sourcing equipment, a system, and a storage medium are provided, and belong to the field of power over Ethernet technologies. The power sourcing equipment includes a plurality of power supply ports and a plurality of data ports. The power sourcing equipment supplies power to a connected powered device through the power supply port, and transmits data to the connected powered device through the data port. In this way, the power supply port can meet a data transmission requirement when a data transmission rate increases. According to the application, when a first power supply port and a first data port are connected to a first powered device, the power sourcing equipment can perform power negotiation with first power sourcing equipment through the first data port based on port feature information of the first power supply port.

    Method, device, and computer program product
    3.
    发明授权
    Method, device, and computer program product 有权

    公开(公告)号：US11237583B2

    公开(公告)日：2022-02-01

    申请号：US16700536

    申请日：2019-12-02

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Yunxiang Dai ,  Kairen Wei ,  Zhengsheng Xie ,  Shiyong Fu ,  Hua Chen ,  Xingbin Yin

    IPC: G05F1/625 ,  G05F1/26 ,  H02J13/00 ,  H02J1/08

    Abstract: This disclosure discloses a power supply method and a power supply device, and pertains to the field of power supply technologies. The method includes: supplying, by a power supply device, power to a load through a power supply port, where the power supply port is connected to a power receiving port of the load by using a power supply cable; and communicating, by the power supply device, with the load through a communications port, to manage a behavior of obtaining power by the load from the power supply device, where the communications port is connected to a communications port of the load by using a communications cable. In this disclosure, the power supply device is a power supply of the load and a controller of the load.

    Port adaptation method and device
    4.
    发明授权
    Port adaptation method and device 有权

    公开(公告)号：US11082322B2

    公开(公告)日：2021-08-03

    申请号：US16113102

    申请日：2018-08-27

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Shiyong Fu ,  Yan Zhuang ,  Rui Hua

    IPC: H04L12/10 ,  H04L12/26 ,  H04L12/40

    Abstract: A port adaptation method applied to a network device including a port adaptation apparatus includes probing whether the first port and the second port are connected to power sourcing equipment, and maintaining or changing one of the first port and the second port that is connected to power sourcing equipment as, or to, a powered state, and a state of the other port as, or to, a powering state.

    Power Over Ethernet Method and Apparatus
    5.
    发明申请
    Power Over Ethernet Method and Apparatus 审中-公开
    以太网供电方法和设备

    公开(公告)号：US20160269187A1

    公开(公告)日：2016-09-15

    申请号：US15066630

    申请日：2016-03-10

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Yan Zhuang ,  Shiyong Fu ,  Hua Chen ,  Xiuju Liang ,  Jincan Cao ,  Rui Hua

    IPC: H04L12/10 ,  G06F1/26

    CPC classification number: H04L12/10 ,  G06F1/26 ,  H04L12/40045 ,  Y02D30/30 ,  Y02D30/32 ,  Y02D50/30

    Abstract: A power over Ethernet method where power sourcing equipment (PSE) detects and determines that a first set of cable pairs and a second set of cable pairs of an Ethernet twisted pair are connected to a valid powered device (PD), the PSE receives a link layer discovery protocol data unit (LLDPDU) from the PD, where the LLDPDU includes a load quantity type-length-value (TLV) used to notify a quantity of PD loads included in the PD, and when the PD receives power from both the first set of cable pairs and the second set of cable pairs, and the PD includes two PD interfaces, and the PD includes two PD loads, the PSE supplies power to the PD at a first power using the first set of cable pairs, and supplies power to the PD at a second power using the second set of cable pairs.

    Abstract translation: 一种以太网供电方法，其中电源设备（PSE）检测并确定以太网双绞线的第一组电缆对和第二组电缆对连接到有效的供电设备（PD），PSE接收链路 来自PD的层发现协议数据单元（LLDPDU），其中LLDPDU包括用于通知包括在PD中的PD负载量的负载量类型长度值（TLV），以及当PD从第一个 电缆组和第二组电缆对，PD包括两个PD接口，PD包括两个PD负载，PSE使用第一组电缆对以第一电源为PD供电，并提供电源 使用第二组电缆对以第二功率到达PD。

    Filtering-based power supply apparatus, power sourcing equipment, and power supply system
    6.
    发明授权
    Filtering-based power supply apparatus, power sourcing equipment, and power supply system 有权

    公开(公告)号：US12032424B2

    公开(公告)日：2024-07-09

    申请号：US17850019

    申请日：2022-06-27

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Shiyong Fu ,  Houcun Zhu ,  Donghui Wang ,  Xiangen Xu ,  Zhaojin Li

    IPC: G06F1/3209 ,  H02J1/02

    CPC classification number: G06F1/3209 ,  H02J1/02

    Abstract: A filtering-based power supply apparatus used in a power sourcing equipment (PSE) includes a power supply control circuit and an adaptive filter circuit. The power supply control circuit includes a power supply channel and a detection module. The power supply channel includes a control switch configured to control on and off of the power supply channel. The detection module is configured to send a detection signal to the power supply channel to detect whether a peer device connected to the power supply channel is a valid powered device. The control switch is turned off in a detection process of the power supply channel. The adaptive filter circuit is configured to filter noise in the detection signal in the detection process of the power supply channel.

    Power supply management method, device, and system
    8.
    发明授权
    Power supply management method, device, and system 有权

    公开(公告)号：US11265179B2

    公开(公告)日：2022-03-01

    申请号：US16694184

    申请日：2019-11-25

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Yan Zhuang ,  Shiyong Fu ,  Jincan Cao ,  Fuguang Huang ,  Xueqi Chen ,  Rui Hua

    IPC: G06F1/32 ,  H04L12/10 ,  G06F1/3203 ,  H04W84/12

    Abstract: A power supply management method performed by power sourcing equipment, includes receiving a power-on request from a level-1 powered device, where the power-on request includes a port identifier of a level-2 power supply port that is detected to be valid in the level-1 powered device, determining, based on the power-on request and an outputtable power of the power sourcing equipment, a level-2 power supply port that is allowed to be powered on in the level-1 powered device, and sending a power-on instruction to the level-1 powered device, where the power-on instruction includes a port identifier of the level-2 power supply port that is allowed to be powered on in the level-1 powered device. The power sourcing equipment uses the level-1 powered device and a level-2 powered device connected to the level-1 powered device as a whole, and centrally performs power supply control and power management.

    Connection Manner Identification Method, Power Sourcing Equipment, Powered Device, and Storage Medium
    9.
    发明申请
    Connection Manner Identification Method, Power Sourcing Equipment, Powered Device, and Storage Medium 有权

    公开(公告)号：US20210408802A1

    公开(公告)日：2021-12-30

    申请号：US17360630

    申请日：2021-06-28

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Chao Gu ,  Jian Xiang ,  Qing Lu ,  Guirong Ji ,  Shiyong Fu ,  Changxin Yao

    IPC: H02J4/00 ,  H04B10/564 ,  H04B10/80

    Abstract: A connection manner identification method includes power sourcing equipment separately sending load adjustment indications to powered devices by using data ports, where each load adjustment indication in the load adjustment indications indicates a corresponding powered device to adjust a load. The powered devices are separately connected to power supply ports of the power sourcing equipment by using power supply cables, and the powered devices are separately connected to the data ports of the power sourcing equipment by using data cables. The power sourcing equipment obtains output power changes of the power supply ports caused by load adjustment of the powered devices, and the power sourcing equipment determines, based on the output power changes, a first data port and a power supply port that are connected to a same powered device in the powered devices.

    Power sourcing equipment and power over ethernet system
    10.
    发明授权
    Power sourcing equipment and power over ethernet system 有权

    公开(公告)号：US11183838B2

    公开(公告)日：2021-11-23

    申请号：US16433718

    申请日：2019-06-06

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Shiyong Fu ,  Yan Zhuang ,  Qi Dong ,  Xiangen Xu ,  Xueqi Chen ,  Yu Ding

    IPC: H02H9/00 ,  H02H9/04 ,  H04L12/10 ,  H02H3/22 ,  H02H7/20

    Abstract: Power sourcing equipment for power over Ethernet (PoE) includes a power supply control circuit, an Ethernet port, and a surge protection circuit. The surge protection circuit includes a first circuit, a second circuit, and a common discharge circuit. The first circuit is connected to a power supply pin group of the Ethernet port, the power supply control circuit, and the common discharge circuit. The second circuit is connected to a non-power supply pin group of the Ethernet port and the common discharge circuit. The first circuit transmits, to the common discharge circuit, a first surge that is input from the power supply pin group. The second circuit transmits, to the common discharge circuit, a second surge that is input from the non-power supply pin group. The common discharge circuit discharges the first surge and the second surge to ground.

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