Methods and apparatus for efficient wakeup of wireless device

A wireless station comprising:

• an antenna configured to communicatively receive:
• a first beacon frame, the first beacon frame including a first indication of a first data transmissions;
• a second beacon frame, the second beacon frame including a second indication of a second data transmission;
• and
• a third beacon frame including an indicator of available data transmissions;
• a controller coupled to the antenna and configured to:
• compare the first and second beacon frames to determine a plurality of bytes that is present in the first and second beacon frames;
• determine whether the received third beacon frame includes the determined plurality of bytes;
• if the received third beacon frame does not include the determined plurality of bytes, provide a signal indicating a low power mode, and
• if the received third beacon frame includes the determined plurality of bytes, provide a signal indicating a wake mode at a selected time before transmission of the plurality of bytes in a subsequent beacon transmission.

A method of operation comprising:

• receiving a first beacon frame, the first beacon frame including a first indication of available data transmissions;
• receiving a second beacon frame, the second beacon frame including a second indication of a second data transmission;
• comparing the first and second beacon frames to determine a plurality of bytes that is present in the first and second beacon frames;
• and
• receiving a third beacon frame, the third beacon frame including an indicator of available data transmissions;
• determining whether the received third beacon frame includes the determined plurality of bytes;
• if the received third beacon frame does not include the determined plurality of bytes, providing a signal indicating a low power mode;
• and
• the received third beacon frame includes the determined plurality of bytes providing a signal indicating a wake mode before transmission of the plurality of bytes in a subsequent beacon transmission.