Information processing device, information processing method, and program

1. An information processing device comprising:

circuitry configured to

acquire a predicted reception power of packets addressed to the information processing device;

determine a sleep determination power threshold based on the predicted reception power;

receive a packet;

determine if the received packet is addressed to the information processing device on the basis of Basic Service Set (BSS) Color contained in a PHY header of the received packet;

if the received packet is not addressed to the information processing device, determine if a reception power of the received packet exceeds the sleep determination power threshold;

if the received packet is not addressed to the information processing device and if the reception power of the received packet exceeds the sleep determination power threshold, shift the information processing device to a sleep state; and

if the received packet is not addressed to the information processing device and if the reception power of the received packet does not exceed the sleep determination power threshold, shift the information processing device to a packet detection state.

2. The information processing device according to claim 1 , wherein the circuitry is further configured to

if the received packet is addressed to the information processing device, shift the information processing device to a packet reception state.

3. The information processing device according to claim 1 , wherein the circuitry is further configured to

determine the sleep determination power threshold on the basis of reception power of a reference signal received from a first device that transmits a packet addressed to the information processing device.

4. The information processing device according to claim 1 , wherein the circuitry is further configured to

determine the sleep determination power threshold by using a latest reference signal included in reference signals received from a first device, or a plurality of reference signals received from the first device.

5. The information processing device according to claim 1 , wherein the circuitry is further configured to

determine the sleep determination power threshold by using a reference signal that has lowest reception power, or a reference signal that has highest reception power in case of presence of a plurality of first devices.

6. The information processing device according to claim 1 , wherein the circuitry is further configured to

determine the sleep determination power threshold by using one or more of a battery residual amount of the information processing device, a volume of data handled by the information processing device, a type of the data, and a communication environment of the information processing device.

7. The information processing device according to claim 1 , wherein the circuitry is further configured to

update the sleep determination power threshold for every reception of a reference signal from a first device.

8. The information processing device according to claim 7 , wherein the circuitry is further configured to

update the sleep determination power threshold in case of detection of movement of the information processing device or the first device.

9. The information processing device according to claim 1 , wherein the circuitry is further configured to

when the information processing device is shifted to the sleep state, it remains in the sleep state until an end of the received packet.

10. The information processing device according to claim 9 , wherein the circuitry is further configured to

determine the end of the received packet not addressed to the information processing device on the basis of a length stored in a physical layer (PHY) header of the received packet not addressed to the information processing device.

11. The information processing device according to claim 1 , wherein the circuitry is further configured to

when the information processing device is shifted to the sleep state, it remains in the sleep state until an end of the received packet plus a predetermined time period.

12. The information processing device according to claim 11 , wherein the predetermined time period is a value that corresponds to any one of short inter frame space (short IFS) (SIFS), DCF IFS (DIFS), and a transmission period of a response signal for the received packet not addressed to the information processing device.

13. An information processing method implemented by circuitry in an information processing device, the method comprising:

acquiring, by the circuitry, a predicted reception power of packets addressed to the information processing device;

determining a sleep determination power threshold based on the predicted reception power;

receiving, by the circuitry, a packet;

determining if the received packet is addressed to the information processing device on the basis of Basic Service Set (BSS) Color contained in a PHY header of the received packet;

if the received packet is not addressed to the information processing device, determining if a reception power of the received packet exceeds the sleep determination power threshold;

if the received packet is not addressed to the information processing device and if the reception power of the received packet exceeds the sleep determination power threshold, shifting the information processing device to a sleep state; and

if the received packet is not addressed to the information processing device and if the reception power of the received packet does not exceed the sleep determination power threshold, shifting the information processing device to a packet detection state.

14. The information processing method according to claim 13 , wherein the method further comprises:

if the received packet is addressed to the information processing device, shifting the information processing device to a packet reception state.