MAC frame design of wake-up frame for wake-up receiver
Methods and systems for waking up an electronic device having a wake-up receiver circuit. A low-power wake-up signal is transmitted, including a wake-up frame including a simplified MAC header. The wake-up frame may also include a simplified frame body. Methods for recovering from failure of a wake-up receiver circuit are also described.
1. A method of waking up an electronic device (ED) having a wake-up receiver circuit, the method comprising:
transmitting a low-power wake-up signal detectable by a wake-up circuit of an intended ED, the wake-up signal comprising a wake-up frame including a simplified MAC header;
wherein the simplified MAC header comprises a message type field identifying a message type of the wake-up frame, a message number field identifying a sequence number of the wake-up frame and a receiver identifier (RxID) field identifying the intended ED.
2. The method of claim 1 wherein the RxID field contains a MAC address.
3. The method of claim 1 wherein the RxID field contains an association identifier (AID).
4. The method of claim 3 wherein the RxID field further contains a BSS ID.
5. The method of claim 1 , wherein the wake-up frame further comprises a simplified frame body including one or more simplified information elements (IEs).
6. The method of claim 5 , wherein each simplified IE comprises an IE identifier, an IE length value and carried information.
7. The method of claim 5 , wherein length of the one or more simplified IEs is variable.
8. The method of claim 5 , wherein the wake-up frame comprises a plurality of simplified IEs, and at least one of the simplified IEs has a length different from at least another one of the simplified IEs.
9. The method of claim 5 , wherein the one or more simplified IEs include a simplified new channel number IE comprising a new channel number in the carried information.
10. The method of claim 5 , wherein the message type field identifies the message type to be a frame type that is both a wake-up frame and a management frame.
11. A method of waking up an electronic device (ED) having a wake-up receiver circuit, the method comprising:
transmitting a low-power wake-up signal detectable by a wake-up circuit of an intended ED, the wake-up signal comprising a wake-up frame including a simplified frame body;
wherein the simplified frame body comprises one or more simplified information elements (IEs), each simplified IE comprising an IE identifier, an IE length value and carried information; and
wherein at least one of the one or more simplified IEs include a simplified new channel number IE comprising a new channel number in the carried information.
12. The method of claim 11 , wherein length of the one or more simplified IEs is variable.
13. The method of claim 11 , wherein the simplified frame body comprises a plurality of simplified IEs, and at least one of the simplified IEs has a length different from at least another one of the simplified IEs.
14. A method of waking up an electronic device (ED) having a wake-up receiver circuit, the method comprising:
receiving a low-power wake-up signal, the wake-up signal comprising a wake-up frame including a simplified MAC header;
wherein the simplified MAC header comprises a message type field identifying a message type of the wake-up frame, a message number field identifying a sequence number of the wake-up frame and a receiver identifier (RxID) field identifying an intended ED;
in response to detecting, by the wake-up circuit, the wake-up frame of the low-power wake-up signal, transmitting, by the wake-up circuit, an internal wake-up signal to a main receiver circuit of the ED; and
in response to receiving the internal wake-up signal at the main receiver circuit, waking up the ED from sleep mode.
15. The method of claim 14 , further comprising:
when the ED is in the sleep mode and the internal wake-up signal is not received for a time period exceeding a predetermine timeout duration, waking the main receiver circuit from a sleep state.
16. The method of claim 14 , wherein the wake-up frame further comprises a simplified frame body including one or more simplified information elements (IEs).
17. The method of claim 16 , wherein each simplified IE comprises an IE identifier, an IE length value and carried information.
18. The method of claim 16 wherein the one or more simplified IEs include a simplified new channel number IE comprising a new channel number in the carried information.
19. The method of claim 16 , wherein the internal wake-up signal includes information indicating the new channel number, the method further comprising:
transmitting, by the main receiver circuit, an acknowledgement signal using the new channel number.