Efficient preamble design and modulation schemes for wake-up packets in wlan with wake-up radio receivers

A wireless communication device comprising:

• a memory;
• a processor;
• and
• a first radio configured to transmit and receive data packets in an operational mode;
• and
• a second radio coupled to said first radio and configured to:
• receive an incoming signal;
• detect a predefined sequence from said incoming signal;
• identify a preamble of a wake-up radio (WUR) packet from said incoming signal, wherein said preamble comprises said predefined sequence;
• identify control information of said WUR packet from said incoming signal based on detection of said predefined sequence;
• resolve said control information based on a data transmission rate indicated by said predefined sequence;
• and
• generate a wake-up indication based on said control information, wherein said wake-up indication is operable to cause said first radio to exit from a low power mode and to enter said operational mode.

A wireless communication device comprising:

• a memory;
• a processor coupled to the memory;
• and
• a transceiver coupled to said memory, wherein said transceiver is configured to:
• generate a wake-up radio (WUR) packet comprising a wake-up radio signal for receipt by a WUR of a wireless communication device, wherein said wake-up radio packet is generated by:
• selecting a predefined sequence from a plurality of predefined sequences based on a data transmission rate for transmitting said wake-up radio signal, wherein each of said plurality of predefined sequences is operable to indicate a different data transmission rate for WUR packet transmission;
• generating a preamble for said WUR packet, wherein said preamble comprises said predefined sequence;
• and
• generating control information for said WUR packet;
• and
• transmit both said preamble and said control information in said WUR packet at said data transmission rate.