Indication information sending method, indication information receiving method, and device

A first station, comprising:

• a processor;
• and
• a non-transitory computer-readable storage medium storing a program to be executed by the processor, the program including instructions for:
• send a request message to a second station that requests the second station to provide channel information of a channel quality of a channel between the first station and the second station;
• obtain the channel information that is sent by the second station, the channel information being sent in response to the request message;
• selecting, based on the received channel information, a first operating channel of a wake-up receiver of the second station for listening for a wakeup packet, a first operating band of the wake-up receiver for listening for a wakeup packet, or the first operating channel of the wake-up receiver for listening for a wakeup packet and the first operating band of the wake-up receiver for listening for a wakeup packet;
• generating, based on the selected first operating channel of the wake-up receiver for listening for a wakeup packet, the selected first operating band of the wake-up receiver for listening for a wakeup packet, or the selected the first operating channel of the wake-up receiver for listening for a wakeup packet and the first operating band of the wake-up receiver for listening for a wakeup packet, indication information of the wake-up receiver of the second station, the indication information indicating:
• the selected first operating channel of the wake-up receiver for listening for a wakeup packet;
• the selected first operating band of the wake-up receiver for listening for a wakeup packet;
• or
• the selected first operating channel of the wake-up receiver for listening for a wakeup packet and the selected first operating band of the wake-up receiver for listening for a wakeup packet;
• and
• a transceiver, configured to send the indication information, causing the wake-up receiver of the second station to listen on the indicated first operating channel or the indicated first operating band for a wakeup packet corresponding to the second station.

A second station, comprising:

• a transceiver, configured to:
• receive, from a first station, a request message that requests the second station to provide channel information of a channel quality of a channel between the first station and the second station;
• in response to receiving the request message, send the channel information to the first station;
• and
• receive indication information, wherein the second station comprises a wake-up receiver and a main radio circuit, the indication information comprises content indicating a first operating channel of the wake-up receiver for listening for a wakeup packet or a first operating band of the wake-up receiver for listening for a wakeup packet, and the indication information is selected based on the channel information;
• and
• a processor;
• and
• a non-transitory computer-readable storage medium storing a program to be executed by the processor, the program including instructions for:
• in response to receiving the indication information, changing a currently-used operating channel of the wake-up receiver or a currently-used operating band of the wake-up receiver according to the content of the indication information, causing the wake-up receiver to listen on the indicated first operating channel or the indicated first operating band for a wakeup packet corresponding to the second station;
• and
• in response to receiving a wakeup packet corresponding to the second station on the currently-used operating channel of the wake-up receiver or the currently-used operating band of the wake-up receiver, causing the wake-up receiver to wake the main radio circuit up using a currently-used operating channel of the main radio circuit.

A second station, comprising:

• a main radio circuit;
• and
• a wake-up receiver;
• wherein the main radio circuit is configured to:
• receive indication information;
• and
• send the indication information to the wake-up receiver, wherein the indication information indicates a first operating channel of the wake-up receiver for listening for a wakeup packet, a first operating band of the wake-up receiver for listening for a wakeup packet, or the first operating channel of the wake-up receiver for listening for a wakeup packet and the first operating band of the wake-up receiver for listening for a wakeup packet, and the indication information is generated based on channel information of a channel quality of a channel between the second station and a first station;
• and
• wherein the wake-up receiver is configured to:
• obtain the indication information;
• in response to obtaining the indication information, change a currently-used operating channel or a currently-used operating band for listening for a wakeup packet according to content of the indication information;
• and
• in response to receiving a wakeup packet corresponding to the second station on the currently-used operating channel of the wake-up receiver or the currently-used operating band of the wake-up receiver, cause the wake-up receiver to wake the main radio circuit up.