Systems, methods, and apparatus for a short beacon in low rate Wi-Fi communications

1. A computer-readable non-transitory storage medium that contains instructions, which when executed by one or more processors result in performing operations comprising:

generating a beacon frame for a sub one gigahertz (GHz) transmission at a short beacon interval, the beacon frame comprising:

a timestamp field, for synchronization of a clock in a device receiving the beacon frame;

a service set identifier (SSID) field; and

one or more capability fields;

generating a traffic indicator map (TIM) element for transmission at a TIM interval, the TIM element comprising a TIM;

transmitting the beacon frame over a wireless communication medium;

receiving a probe request from an unassociated device after the beacon frame is transmitted;

transmitting the TIM element over the wireless communications medium, wherein the TIM interval is set to a value larger than the short beacon interval, wherein a ratio of the TIM interval to the short beacon interval is greater than or equal to 10:1; and

causing to send a probe response to the unassociated device after the transmitting of the beacon frame, and before the transmitting of the TIM element.

2. The medium of claim 1 , wherein a ratio of the TIM interval to the short beacon interval is within a range from 10:1 to 255:1.

3. A method of communicating wirelessly, comprising:

generating a beacon frame for a sub one gigahertz (GHz) transmission at a short beacon interval, the beacon frame comprising:

a timestamp field, for synchronization of a clock in a device receiving the beacon frame;

a service set identifier (SSID) field; and

one or more capability fields;

generating a traffic indicator map (TIM) element for transmission at a TIM interval, the TIM element comprising a TIM;

transmitting the beacon frame over a wireless communication medium;

receiving a probe request from an unassociated device after the beacon frame is transmitted;

transmitting the TIM element over the wireless communications medium, wherein the TIM interval is set to a value larger than the short beacon interval, wherein a ratio of the TIM interval to the short beacon interval is greater than or equal to 10:1; and

causing to send a probe response to the unassociated device after the transmitting of the beacon frame, and before the transmitting of the TIM element.

4. The method of claim 3 , wherein a ratio of the TIM interval to the short beacon interval is within a range from 10:1 to 255:1.

5. A wireless communications device, comprising:

one or more memory that stores computer-executable instructions; and

one or more processors configured to access the one or more memory, wherein the one or more processors are configured to execute the computer-executable instructions to:

generate a beacon frame for a sub one gigahertz (GHz) transmission at a selectable beacon interval, the beacon frame comprising:

a timestamp field, for synchronization of a clock in a device receiving the beacon frame;

a service set identifier (SSID) field; and

one or more capability fields;

generate a traffic indicator map (TIM) element for transmission at a TIM interval, the TIM element comprising a TIM;

transmit the beacon frame over a wireless communication medium;

receive a probe request from an unassociated device after the beacon frame is transmitted;

transmitting the TIM element over the wireless communications medium, wherein the TIM interval is set to a value larger than the short beacon interval, wherein a ratio of the TIM interval to the short beacon interval is greater than or equal to 10:1; and

transmit a probe response to the unassociated device after the transmitting of the beacon frame, and before the transmitting of the TIM element.

6. The wireless communications device of claim 5 , wherein a ratio of the TIM interval to the short beacon interval is within a range from 10:1 to 255:1.

7. The wireless communications device of claim 5 , further comprising:

a transceiver; and

an antenna.

8. A wireless communications device comprising a processor and a memory, wherein the device is configured to:

generate a traffic indicator map (TIM) frame, the TIM frame comprising a Check Beacon field, a TIM timestamp field, and a TIM, wherein the TIM timestamp field is for synchronization of a clock in a device receiving a short beacon frame using a sub one gigahertz (GHz) transmission;

transmitting the beacon frame;

receive a probe request from an unassociated device after transmitting the beacon frame;

transmit the TIM frame over a wireless communication medium based on a TIM interval, wherein the TIM interval is set to a value larger than a short beacon interval, wherein a ratio of the TIM interval to the short beacon interval is greater than or equal to 10:1; and

transmit a probe response to the unassociated device after the beacon frame is transmitted, and before the transmitting of the TIM frame.

9. The wireless communications device of claim 8 , wherein a ratio of the TIM interval to the short beacon interval is within a range from 10:1 to 255:1.

10. A method of wireless communication, comprising:

generating a traffic indicator map (TIM) frame, the TIM frame comprising a Check Beacon field, a TIM timestamp field, and a TIM, wherein the TIM timestamp field is for synchronization of a clock in a device receiving a short beacon frame received on a sub one gigahertz (GHz) transmission;

transmitting the beacon frame;

receiving a probe request from an unassociated device after transmitting the beacon frame;

transmitting the TIM frame over a wireless communication medium based on a TIM interval, wherein the TIM interval is set to a value larger than a short beacon interval, wherein a ratio of the TIM interval to the short beacon interval is greater than or equal to 10:1; and

causing to send a probe response to the unassociated device after the beacon frame is transmitted, and before the transmitting of the TIM frame.

11. The method of claim 10 , wherein a ratio of the TIM interval to the short beacon interval is within a range from 10:1 to 255:1.

12. A computer-readable non-transitory storage medium that contains instructions, which when executed by one or more processors result in performing operations comprising:

generating a traffic indicator map (TIM) frame, the TIM frame comprising a Check Beacon field, a TIM timestamp field, and a TIM, wherein the TIM timestamp field is for synchronization of a clock in a device receiving a short beacon frame received on a sub one gigahertz (GHz) transmission;

transmitting the beacon frame;

receiving a probe request from an unassociated device after receiving the beacon frame;

transmitting the TIM frame over a wireless communication medium based on a TIM interval, wherein the TIM interval is set to a value larger than a short beacon interval, wherein a ratio of the TIM interval to the short beacon interval is greater than or equal to 10:1; and

causing to send a probe response to the unassociated device after the beacon frame is transmitted, and before the transmitting of the TIM frame.

13. The computer-readable non-transitory storage medium of claim 12 , wherein a ratio of the TIM interval to the short beacon interval is within a range from 10:1 to 255:1.