Patent ID: 9374190
Filing Date: 2016-06-21
CPC Classification: H04L,H04W,Y02D

Claim Text:
1. A method comprising: causing to be sent by downlink transmission of a first data frame comprising data and a header from an access point to a first station in a cellular network, an indication that additional data remains buffered for delivery after an interruption in data frame exchanges, wherein the indication is included in the header of the first data frame; scheduling a target wake time for the first station, at which to resume delivery of data frames to the first station via the cellular network; causing a sleep mode indication and sleep duration to be sent in the header of the first data frame to set the target wake time to resume the delivery of data frames to the first station; resuming sending the data frames at the target wake time if an uplink signal acknowledgement of the sleep mode indication and sleep duration from the first station is received by the access point; and foregoing sending the data frames at the target wake time in the absence of an uplink signal acknowledgement of the sleep mode indication and sleep duration from the first station.