Wireless communication device, wireless communication method and processing circuit

A radio communication method for a radio communication apparatus that operates in a low power mode during no communication and operates in a normal power mode when there is data to be received or transmitted, the method comprising:

• recording first receiving quality which is received signal quality from a connected access point during operation in the normal power mode and second receiving quality which is received signal quality from an access point other than the connected access point;
• determining a difference between the first receiving quality and the second receiving quality;
• and
• setting an initial value of transmission power of an awake notification signal transmitted when starting operation in the next normal power mode based on the difference.

A radio communication method for a radio communication apparatus that operates in a low power mode during no communication and operates in a normal power mode when there is data to be received or transmitted, the method comprising:

• recording first receiving quality which is received signal quality from a connected access point during operation in the normal power mode and second receiving quality which is received signal quality from an access point other than the connected access point;
• determining a difference between the first receiving quality and the second receiving quality;
• setting an initial value of transmission power of an awake notification signal transmitted when starting operation in the normal power mode based on the difference;
• determining transmission power of the awake notification signal that enables a response from the connected access point as transmission power in the normal power mode;
• and
• modifying an initial value of transmission power of an awake notification signal transmitted when starting operation in the next normal power mode to a smaller value when the difference between the first receiving quality and the second receiving quality is improved from the last difference.

A processing circuit of a radio communication apparatus that operates in a low power mode during no communication and operates in a normal power mode when there is data to be received or transmitted, comprising:

• a section that records first receiving quality which is received signal quality from a connected access point during operation in the normal power mode and second receiving quality which is received signal quality from an access point other than the connected access point;
• a section that determines a difference between the first receiving quality and the second receiving quality;
• and
• a section that sets an initial value of transmission power of an awake notification signal transmitted when starting operation in the normal power mode, wherein:
• the processing circuit performs control of modifying an initial value of transmission power of a next awake notification signal based on the difference between the first receiving quality and the second receiving quality.