公开(公告)号：US20230134181A1

公开(公告)日：2023-05-04

申请号：US18074869

申请日：2022-12-05

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04B10/2575 ,  H04B10/564

Abstract: A communication system includes a first device and a second device connected through an electro-optical composite cable. The electro-optical composite cable includes an optical fiber and a power supply cable. The optical fiber is used to transmit a data signal. The power supply cable is used to transmit a direct current. The first device is configured to send a first alternating-current signal to the second device through the power supply cable. The second device is configured to switch a running status based on the first alternating-current signal.

公开(公告)号：US11368321B2

公开(公告)日：2022-06-21

申请号：US16802974

申请日：2020-02-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hua Chen ,  Shiyong Fu ,  Yan Zhuang ,  Rui Hua ,  Qi Dong ,  Chao Gu

IPC: G06F1/32 ,  H04L12/10 ,  G06F1/3209 ,  G06F1/3203

Abstract: Power sourcing equipment (PSE) and an energy saving method for Power over Ethernet are provided. The PSE includes: a low-power detection component, configured to: detect a power supply port when being connected to the power supply port; and send a first instruction when the power supply port is connected to a valid powered device PD, to instruct a control switch to connect a PSE chip and the power supply port and disconnect the low-power detection component from the power supply port, and instruct a power switch to connect the PSE chip and a power supply; the control switch, configured to: according to the first instruction, connect the PSE chip and the power supply port, and disconnect the low-power detection component from the power supply port; and the power switch, configured to connect the PSE chip to the power supply port according to the first instruction.

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.

公开(公告)号：US20240187266A1

公开(公告)日：2024-06-06

申请号：US18400303

申请日：2023-12-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Mujie Zou ,  Chenhui Deng ,  Shenghua Niu ,  Chao Gu ,  Weibiao Chen

IPC: H04L12/10

CPC classification number: H04L12/10

Abstract: A power management method includes power sourcing equipment (PSE) supplying power to a plurality of powered devices (PDs), and determining reserved power of the PSE based on a power usage status, where the reserved power is used to continue supplying power to the plurality of PDs when actual available power of the PSE is exhausted, and where the reserved power varies with the power usage status of the PSE.

公开(公告)号：US11876382B2

公开(公告)日：2024-01-16

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 ,  G06F1/26 ,  H04L12/40 ,  H04L12/10

CPC classification number: H02J4/00 ,  H04B10/564 ,  H04B10/808 ,  G06F1/266 ,  H04L12/10 ,  H04L12/40045

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.