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公开(公告)号：US11791864B2
公开(公告)日：2023-10-17
申请号：US17199165
申请日：2021-03-11
Applicant: Huawei Technologies Co., Ltd.
Abstract: A PLC control method includes: transmit a first signal through a neutral wire and a path between the neutral wire and a differential signal processing circuit; transmit a second signal through a live wire and a path between the live wire and the differential signal processing circuit; and disconnecting the path between the differential signal processing circuit and the neutral wire or the live wire, conducting the differential signal processing circuit to a ground wire, and when a transmission rate of the ground wire is greater than or equal to a preset transmission rate threshold, transmitting the first signal or the second signal through the ground wire and a path between the ground wire and the differential signal processing circuit.
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公开(公告)号：US11387865B2
公开(公告)日：2022-07-12
申请号：US17021639
申请日：2020-09-15
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yong You , Hua Li , Dao Pan , Peng Xiao , Lingxiao Kong
Abstract: This application provides a power line communication method. Wherein, a first node determines a channel status of a channel between a second node and the first node in an alternating current cycle. Then, the first node may divide the alternating current cycle into time windows based on the channel status, and determine modulation coding parameters used for data transmission between the second node and the first node in the time window obtained through division. Further, the first node may send information about the time window obtained through division and the modulation coding parameters used in the time window obtained through division to the second node.
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公开(公告)号：US20210203381A1
公开(公告)日：2021-07-01
申请号：US17199165
申请日：2021-03-11
Applicant: Huawei Technologies Co., Ltd.
Abstract: A PLC control method includes: transmit a first signal through a neutral wire and a path between the neutral wire and a differential signal processing circuit; transmit a second signal through a live wire and a path between the live wire and the differential signal processing circuit; and disconnecting the path between the differential signal processing circuit and the neutral wire or the live wire, conducting the differential signal processing circuit to a ground wire, and when a transmission rate of the ground wire is greater than or equal to a preset transmission rate threshold, transmitting the first signal or the second signal through the ground wire and a path between the ground wire and the differential signal processing circuit.
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