Apparatus, system, and method of updating a target wake time (twt) agreement

A product comprising one or more tangible computer-readable non-transitory storage media comprising instructions operable to, when executed by at least one processor, enable the at least one processor to cause a first wireless communication station (STA) to:

• set up a Target Wake Time (TWT) agreement with a second STA, the TWT agreement to define a plurality of TWT Service Periods (SPs) for the first STA according to a first setting of one or more TWT SP parameters;
• and
• select to transmit a frame to the second STA after setting up the TWT agreement, the frame comprising one or more TWT parameter fields configured to update a definition of one or more TWT SPs of the plurality of TWT SPs according to a second setting of the one or more TWT SP parameters, wherein the second setting of the one or more TWT SP parameters is different from the first setting of the one or more TWT SP parameters.