RECEIVER STATE ESTIMATION IN A DUTY CYCLED RADIO
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Accused Products
Abstract
A method for receiver state estimation includes communicating, from a first communications device to a second communications device, a first plurality of wake-up frames; receiving, at the first communications device from the second communications device, an indication of a received wake-up frame of the communicated first plurality of wake-up frames; determining, by the first communications device, a time at which the second communications device is in a ready state based on the received indication; subsequently communicating, from the first communications device to the second communications device, a second plurality of wake-up frames. The first plurality is greater than the second plurality, the reduction in number from the first plurality to the second plurality being based on the determined time at which the second communications device is in a ready state.
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Citations
39 Claims
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1-20. -20. (canceled)
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21. A method comprising:
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sending, from a first communications device to a second communications device, a first series of wake-up frames; receiving, from the second communications device, an identification of a received wake-up frame of the first series of wake-up frames; subsequent to sending a last wake-up frame in the first series of wake-up frames, sending a first message from the first communication device to the second communications device; sending a second series of wake-up frames, fewer in number than the first series of wake-up frames, to the second communications device, wherein the difference between the first series and the second series of wake-up frames is based upon the position of the received wake-up frame in the first series of wake-up frames; and subsequent to sending a last wake-up frame in the second series of wake-up frames, sending a second message from the first communications device to the second communications device. - View Dependent Claims (22, 23, 24, 25, 26)
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27. A communications device comprising:
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a receiver; a transmitter; and a processor; wherein the communications device is configured to; send, from a first communications device to a second communications device, a first series of wake-up frames; receive, from the second communications device, an identification of a received wake-up frame of the first series of wake-up frames; subsequent to sending a last wake-up frame in the first series of wake-up frames, send a first message from the first communication device to the second communications device; send a second series of wake-up frames, fewer in number than the first series of wake-up frames, to the second communications device, wherein the difference between the first series and the second series of wake-up frames is based upon the position of the received wake-up frame in the first series of wake-up frames; and subsequent to sending a last wake-up frame in the second series of wake-up frames, send a second message from the first communications device to the second communications device. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34)
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35. A system comprising:
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a first communications device configured to communicate, to a second communications device, a first series of wake-up frames; a second communications device configured to, based upon receipt of at least one of the first series of wake-up frames, communicate an identification of a receive wake-up frame of the first series of wake-up frames; wherein the first communications device is further configured to; receive, from the second communications device, an identification of a received wake-up frame of the first series of wake-up frames; subsequent to sending a last wake-up frame in the first series of wake-up frames, send a first message from the first communication device to the second communications device; send a second series of wake-up frames, fewer in number than the first series of wake-up frames, to the second communications device, wherein the difference between the first series and the second series of wake-up frames is based upon the position of the received wake-up frame in the first series of wake-up frames; and subsequent to sending a last wake-up frame in the second series of wake-up frames, send a second message from the first communications device to the second communications device. - View Dependent Claims (36, 37, 38, 39)
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Specification