Method and apparatus for wake-up of communication node in vehicle network
AssigneesHyundai Motor Company, Kia Motors Corporation
InventorsDong Ok KIM, Kang Woon SEO, Jin Hwa YUN
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Abstract
An operation method of a communication node in a vehicle network may include detecting a wake-up event; generating a wake-up signal including an identifier indicating a wake-up reason corresponding to the wake-up event based on a wake-up table, the wake-up table configured for storing the wake-up reason corresponding to the wake-up event, a target communication node configured to be woken up by the wake-up reason, and an operation power configured to be supplied to the target communication node; and transmitting the wake-up signal.
Claims20
A communication node in a vehicle network, the communication node comprising:
- a physical (PHY) layer unit and a controller unit,
- wherein the PHY layer unit and the controller unit are configured to:
- detect, by the controller unit, a wake-up event;
- generate, by the PHY layer unit, a wake-up signal including an identifier indicating a wake-up reason corresponding to the wake-up event based on a wake-up table, the wake-up table configured for storing the wake-up reason corresponding to the wake-up event, a target communication node configured to be woken up by the wake-up reason, and an operation power configured to be supplied to the target communication node;
- and
- transmit, by the PHY layer unit, the wake-up signal.
An operation method of a switch in a vehicle network, the operation method comprising:
- receiving a wake-up signal including an identifier indicating a wake-up reason;
- identifying a target end node to be woken up by the wake-up reason according to a wake-up table, the wake-up table configured for storing a wake-up event corresponding to the wake-up reason, the target end node to be woken up by the wake-up reason, and an operation power configured to be supplied to the target end node;
- and
- transmitting the wake-up signal through a port to which the identified target end node is connected.
An operation method of a first communication node including a physical (PHY) layer unit and a controller unit in a vehicle network, the operation method comprising:
- receiving a wake-up signal including an identifier indicating a wake-up reason from a second communication node;
- receiving an operation power from the second communication node;
- identifying at least a target communication node configured to be woken up by the wake-up reason according to a wake-up table, the wake-up table configured for storing the wake-up reason corresponding to the wake-up event, the at least a target communication node configured to be woken up by the wake-up reason, and a power to be supplied by the first communication node;
- and
- in a response to determining that the first communication node belongs to the at least a target communication node, waking up the controller unit by the PHY layer unit, and transmitting the wake-up signal through a port to which another target communication node is connected.
Dependencies are inferred from the claim text.