Patent ID: 9532310
Filing Date: 2016-12-27
CPC Classification: H04W,Y02D

Claim Text:
1. A method comprising: 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.