802.11ax (Wi-Fi 6) introduced a new power-saving mechanism called Target Wake Time (TWT). This feature improves the battery life of client devices in dense environments by minimizing contention between STAs, which in turn minimizes packet retries and optimizes power consumption by increasing the STA's sleep time. This is a distinct advantage over legacy power-saving techniques.
In TWT, STA and Access Points negotiate a STA’s wake-up time to send and receive data in a negotiated wake interval and remain in a sleep state at other times. The device negotiates specific service periods to communicate with Access Points.
By default, Zebra devices use TWT if the network is configured for TWT. A device sets up a TWT session and switches in and out of TWT mode automatically, based on Tx/Rx traffic conditions.
