Communication apparatus, communication method, and storage medium

A communication apparatus comprising:

• a main system to perform first authentication processing;
• and
• a subsystem to perform second authentication processing:
• the main system including
• a power saving control circuitry configured to control the main system to transition to a power saving state, in which the communication apparatus consumes power that is lower than power consumed when the communication apparatus is in a normal state, in which the main system performs the first authentication processing,
• the subsystem including
• communication circuitry configured to transmit and receive data through a network, and
• event processing circuitry configured to determine whether the subsystem can process a packet of the data received by the communication circuitry, when the main system is in the power saving state,
• wherein when the event processing circuitry determines that the subsystem can process the packet of the data received by the communication circuitry, the event processing circuitry processes a predetermined event by the subsystem according to a type of the packet of the data received, without controlling the main system to transition to the normal state.

A communication method, comprising:

• controlling, by a main system, the main system to transition to a power saving state, in which a communication apparatus consumes power that is lower than power consumed when the communication apparatus is in a normal state, in which the main system performs a first authentication processing;
• transmitting and receiving, by a subsystem, data through a network;
• determining, by the subsystem, whether the subsystem can process a packet of the received data, when the main system is in the power saving state;
• and
• when the determining determines that the subsystem can process the packet of the received data, processing, by the subsystem, a predetermined event according to a type of the packet of the received data, without controlling the main system to transition to the normal state.

A non-transitory computer readable storage medium storing a program including instruction, which, when executed by one or more processors of a communication apparatus perform a method comprising:

• controlling, by the main system, the main system to transition to a power saving state, in which the communication apparatus consumes power that is lower than power consumed when the communication apparatus is in a normal state, in which the main system performs a first authentication processing;
• transmitting and receiving, by a subsystem, data through the network;
• determining, by the subsystem, whether the subsystem can process a packet of the received data, when the main system is in the power saving state;
• and
• when the determining determines that the subsystem can process the packet of the received data processing, by the subsystem, a predetermined event according to a type of the packet of the received data, without controlling the main system to transition to the normal state.