公开(公告)号：US12081285B2

公开(公告)日：2024-09-03

申请号：US17741443

申请日：2022-05-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kuichao Song ,  Yuefeng Wu ,  Chao Ren

IPC: H04B3/54 ,  H04B3/56

CPC classification number: H04B3/542 ,  H04B3/56 ,  H04B2203/5433 ,  H04B2203/5483

Abstract: Embodiments of this application disclose a method, an apparatus, and a system for information transmission in a PLC network. A switch control apparatus in embodiments of this application includes a switch and a coupling circuit. The coupling circuit is connected in parallel to two ends of the switch. When the switch is open, the coupling circuit transmits a first power line communication (PLC) signal to a gateway device. In embodiments of this application, when the switch is open, the PLC signal may be sent to the gateway device and information such as power off and tripping may be reported to the gateway device.

公开(公告)号：US11575493B2

公开(公告)日：2023-02-07

申请号：US17245704

申请日：2021-04-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yueping Leng ,  Kuichao Song

IPC: H04L7/00 ,  H04B3/54

Abstract: A time synchronization method, applied to a power-line communication (PLC) network that includes a head end node and at least one tail end node coupled to the head end node. The method includes the head end node generates data about voltage zero-crossing points based on reference time, where the data about the voltage zero-crossing points includes zero-crossing time points of the voltage zero-crossing points. When a first timing point arrives, the head end node sends first information to the tail end node, where the first information includes a timestamp of a first zero-crossing point, the first zero-crossing point is a voltage zero-crossing point closest to the first timing point, and the timestamp of the first zero-crossing point is used by the tail end node to determine a zero-crossing time point of a second zero-crossing point.

公开(公告)号：US20210344475A1

公开(公告)日：2021-11-04

申请号：US17245704

申请日：2021-04-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yueping Leng ,  Kuichao Song

IPC: H04L7/00 ,  H04B3/54

Abstract: A time synchronization method, applied to a power-line communication (PLC) network that includes a head end node and at least one tail end node coupled to the head end node. The method includes the head end node generates data about voltage zero-crossing points based on reference time, where the data about the voltage zero-crossing points includes zero-crossing time points of the voltage zero-crossing points. When a first timing point arrives, the head end node sends first information to the tail end node, where the first information includes a timestamp of a first zero-crossing point, the first zero-crossing point is a voltage zero-crossing point closest to the first timing point, and the timestamp of the first zero-crossing point is used by the tail end node to determine a zero-crossing time point of a second zero-crossing point.

公开(公告)号：US20220271795A1

公开(公告)日：2022-08-25

申请号：US17741443

申请日：2022-05-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kuichao Song ,  Yuefeng Wu ,  Chao Ren

IPC: H04B3/54 ,  H04B3/56

Abstract: Embodiments of this application disclose a method, an apparatus, and a system for information transmission in a PLC network. A switch control apparatus in embodiments of this application includes a switch and a coupling circuit. The coupling circuit is connected in parallel to two ends of the switch. When the switch is open, the coupling circuit transmits a first power line communication (PLC) signal to a gateway device. In embodiments of this application, when the switch is open, the PLC signal may be sent to the gateway device and information such as power off and tripping may be reported to the gateway device.

公开(公告)号：US09400758B2

公开(公告)日：2016-07-26

申请号：US14072704

申请日：2013-11-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kuichao Song ,  Junyang Rao ,  Qiang Liu

IPC: G06F13/14 ,  G06F13/24 ,  G06F1/24 ,  G06F11/14 ,  G06F12/02

CPC classification number: G06F13/24 ,  G06F1/24 ,  G06F11/1441 ,  G06F12/0246 ,  G06F13/14

Abstract: The present invention relates to a reset method and a network device. The method includes: receiving, by an SPI Flash, a reset instruction sent by a processor; and performing reset processing corresponding to the reset instruction according to the reset instruction, where the reset instruction includes interrupting a current operation, recording interruption state information when the current operation is interrupted, and setting a current state to a state of responding to a read instruction of the processor; after finishing the reset operation, sending, by the processor, a read instruction to the SPI Flash, and receiving interruption state information sent by the SPI Flash according to the read instruction; and then determining, according to the interruption state information, whether the interrupted operation in the SPI Flash needs to be continued, and if yes, sending an instruction of continuing the interrupted operation to the SPI Flash.

Abstract translation: 本发明涉及一种复位方法和一种网络设备。 该方法包括：通过SPI闪存接收由处理器发送的复位指令; 以及根据所述复位指令执行与所述复位指令相对应的复位处理，其中所述复位指令包括中断当前操作，当当前操作中断时记录中断状态信息，以及将当前状态设置为响应于读取指令的状态 的处理器; 在完成复位操作之后，由处理器发送读指令给SPI闪存，并根据读指令接收SPI闪存发送的中断状态信息; 然后根据中断状态信息确定SPI闪存中的中断操作是否需要继续，如果是，则向SPI Flash发送继续中断操作的指令。