公开(公告)号：US20250097061A1

公开(公告)日：2025-03-20

申请号：US18970266

申请日：2024-12-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tong Mu ,  Lifu Lin ,  Yumeng Yang ,  Jian Yang ,  Yan Zhuang

IPC: H04L12/10

Abstract: A master node, a slave node, a power supply method, and a related device, wherein the master node and a plurality of first slave nodes are included in a point-to-point topology, and the master node is configured to: connect links between the master node and all of N first slave nodes in a time-division manner; obtain respective powers of the N first slave nodes; and supply power to a target slave node in the N first slave nodes based on the respective powers of the N first slave nodes and an output power of the master node.

公开(公告)号：US20240259133A1

公开(公告)日：2024-08-01

申请号：US18427263

申请日：2024-01-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuchun Lu ,  Yan Zhuang

IPC: H04L1/00

CPC classification number: H04L1/0042 ,  H04L1/0003

Abstract: A data transmission method, apparatus, and system are applied to the field of communication technologies. The method includes: performing demultiplexing processing on obtained y first data streams to obtain x second data streams, where the y first data streams are obtained through bit multiplexing processing; mapping the x second data streams at a granularity of n bits to obtain z third data streams; and outputting the z third data streams over an output lane, where y, x, n, and z are all positive integers, and n≥2. The method may be applied to an Ethernet high-speed interface.

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：US11329837B2

公开(公告)日：2022-05-10

申请号：US16391021

申请日：2019-04-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: G06F1/30 ,  H04L12/10 ,  G06F1/26 ,  H04L12/40

Abstract: A network device includes a power system, a processor, a power sourcing equipment PSE chip coupled to a first forward power supply port, and a first powered device PD chip coupled to a first reverse power receiving port. A first powered device is connected to the first forward power supply port and the first reverse power receiving port. When detecting that a power failure occurs on the network device, the processor instructs the first PD chip to draw power from the first powered device; the first PD chip draws the power from the first powered device through the first reverse power receiving port, and supplies the obtained power to the power system. Therefore, when a power failure occurs, the network device can continue to obtain power and work properly when the power failure occurs.

公开(公告)号：US20210392066A1

公开(公告)日：2021-12-16

申请号：US17356276

申请日：2021-06-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shiyong Fu ,  Yan Zhuang ,  Rui Hua

IPC: H04L12/26 ,  H04L12/10 ,  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 switching 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.

公开(公告)号：US11153823B2

公开(公告)日：2021-10-19

申请号：US16665270

申请日：2019-10-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chenhe Ji ,  Yan Zhuang ,  Yungui Wang

IPC: H04W52/02 ,  H04W72/04

Abstract: A wireless access point, a terminal device, and a method for waking up a terminal device by a wireless access point. The terminal device includes a primary radio frequency circuit and a wake-up radio (WUR) radio frequency circuit. The WUR radio frequency circuit only receives a radio signal and operates on a specified channel. If the WUR radio frequency circuit receives a wake-up frame on the specified channel and the terminal device is a to-be-woken-up terminal device, the WUR radio frequency circuit wakes up the primary radio frequency circuit. The wake-up frame includes an identifier of the to-be-woken-up terminal device. The primary radio frequency circuit operates on an operating channel of the primary radio frequency circuit after being woken up.

公开(公告)号：US20200228353A1

公开(公告)日：2020-07-16

申请号：US16835181

申请日：2020-03-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shiyong Fu ,  Yan Zhuang ,  Xiangen Xu ,  Qi Dong ,  Peng Xu ,  Rui Hua

IPC: H04L12/10 ,  G06F1/28 ,  G06F1/3296

Abstract: This application discloses an energy-saving power sourcing method. Power sourcing equipment receives an input voltage of a powered device fed back by the powered device, and adjusts, based on the input voltage, a power sourcing voltage that is output to the powered device, so that the input voltage of the powered device is a maximum voltage, thereby reducing a link loss and saving electric power resources of the power sourcing equipment.

公开(公告)号：US20180323981A1

公开(公告)日：2018-11-08

申请号：US16039310

申请日：2018-07-18

Applicant: Huawei Technologies Co.,Ltd.

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

IPC: H04L12/10 ,  H04L12/40 ,  G06F1/26

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

Abstract: A power over Ethernet (PoE) power supplying method where power sourcing equipment (PSE) and a powered device exchange link layer discovery protocol data units (LLDPDUs). Each of the LLDPDUs includes two power values. Each of the power values indicates requested or allocated power for one of two sets of cable pairs of the Ethernet twisted pair connecting the PSE and the powered device. Accordingly, the supplied powers to the powered device at sets of cable pairs are independent from each other.

公开(公告)号：US20150293572A1

公开(公告)日：2015-10-15

申请号：US14675072

申请日：2015-03-31

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yan Zhuang ,  Chao Zhao ,  Shiyong Fu ,  Rui Hua

IPC: G06F1/26 ,  G06F13/40

CPC classification number: G06F1/266 ,  G06F13/4022 ,  H04L12/10 ,  H05B37/00 ,  Y02D50/30

Abstract: A power sourcing equipment (PSE) chip controls a powering channel of the PSE chip according to a value stored in a first register; the PSE chip changes, in response to a second instruction, the value stored in the first register into a calculated value, where the second instruction includes a second slave address and a second data byte, the second slave address is a virtual address of a virtual powering group, and the calculated value is a result obtained by calculation according to the second data byte and a channel indication value that is of the virtual powering group and stored in the PSE chip. Information indicating whether a powering channel is added to a virtual powering group is stored in a PSE chip, so that powering channels added to a virtual powering group can be controlled at a time.

Abstract translation: 电源设备（PSE）芯片根据存储在第一寄存器中的值来控制PSE芯片的供电通道; PSE芯片响应于第二指令将存储在第一寄存器中的值改变为计算值，其中第二指令包括第二从地址和第二数据字节，第二从地址是虚拟地址 计算值是通过根据第二数据字节的计算获得的结果和虚拟供电组的信道指示值，并存储在PSE芯片中。 指示是否将加电通道添加到虚拟供电组的信息存储在PSE芯片中，从而可以一次控制添加到虚拟供电组的通道。

公开(公告)号：US20250106111A1

公开(公告)日：2025-03-27

申请号：US18971767

申请日：2024-12-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yumeng Yang ,  Tong Mu ,  Yan Zhuang ,  Yuefeng Wu

IPC: H04L41/0896 ,  H04L12/40

Abstract: Embodiments of this application disclose a network device, a device communication method, and a communication system. The network device in embodiments of this application includes: a bus management module, configured to adjust at least one of a bus scale, a channel capacity, or a power supply or receiving state, where the bus scale includes at least one of a quantity of devices accessing a bus and a link length, the channel capacity includes a bandwidth, and the power supply or receiving state includes at least one of sequential power-on, power-on of a new node, or power-off of a faulty node.