Operation methods of communication node in network

An operation method of a communication node in an Ethernet-based vehicle network, wherein the communication node includes a regulator, a physical (PHY) layer unit, and a processor, the method comprising:

• transitioning, by the processor, from a sleep mode to a normal mode in response to a local wakeup signal;
• outputting, by the processor, a first signal instructing transition from the sleep mode to the normal mode;
• and
• transitioning, by the PHY layer unit, from the sleep mode to the normal mode when the first signal is received at the PHY layer unit from the processor.

An operation method of a communication node in an Ethernet-based vehicle network, wherein the communication node includes a regulator, a physical (PHY) layer unit, and a processor, the method comprising:

• outputting, by the PHY layer unit, an interrupt signal according to a remote wakeup signal;
• transitioning, by the processor, from a sleep mode to a normal mode when the interrupt signal is received at the processor from the PHY layer unit;
• outputting, by the processor, a first signal instructing transition from the sleep mode to the normal mode;
• and
• transitioning, by the PHY layer unit, from the sleep mode to the normal mode when the first signal is received at the PHY layer unit from the processor.

An operation method of a communication node in an Ethernet-based vehicle network, wherein the communication node includes a regulator, a physical (PHY) layer unit, and a processor, the method comprising:

• outputting, by the processor, a first signal instructing power off;
• outputting, by the processor, a second signal instructing transition from a normal mode to a sleep mode;
• transitioning, by the PHY layer unit, from the normal mode to the sleep mode when the second signal is received at the PHY layer unit from the processor;
• outputting, by the PHY layer unit, a third signal instructing power off;
• stopping, by the regulator, a supply of power to the processor according to a result of an OR calculation the first signal and the third signal;
• and
• transitioning, by the processor, from the normal mode to a power off mode when the power is not supplied.

An operation method of a communication node in an Ethernet-based vehicle network, wherein the communication node includes a regulator, a physical (PHY) layer unit, and a processor, the method comprising:

• outputting, by the processor, a first signal instructing transition from a normal mode to a sleep mode;
• transitioning, by the PHY layer unit, from normal mode to the sleep mode when the first signal is received at the PHY layer unit from the processor;
• outputting, by the PHY layer unit, a second signal instructing power off;
• outputting, by the processor, a third signal instructing power off;
• stopping, by the regulator, a supply of power to the processor according to a result of an OR calculation the second signal and the third signal;
• and
• transitioning, by the processor, from the normal mode to a power off mode when the power is not supplied.

An operation method of a communication node in an Ethernet-based vehicle network, wherein the communication node includes a regulator, a physical (PHY) layer unit, and a processor, the method comprising:

• outputting, by the PHY layer unit, a first signal instructing supply of power according to a remote wakeup signal;
• supplying, by the regulator, power to the processor according to a result of an OR calculation the first signal and the second signal;
• transitioning, by the processor, from a power off mode to a normal mode according to the supplied power;
• outputting, by the processor, a third signal instructing transition from a sleep mode to the normal mode;
• and
• transitioning, by the PHY layer unit, from the sleep mode to the normal mode when the third signal is received at the PHY later unit from the processor.