Wlan communication methods and devices

Abstract

Various embodiments of the teachings herein include a WLAN communication method. An example includes: receiving a polling request message at a client from an access point; checking whether the client is a polled client; if the client is the polled client, then sending a polling response message from the client to the access point; entering a function execution time window, and, when a moment for executing a function is reached in the function window, executing the function at the client. The function window starts when the client sends the polling response and ends before a retention time window starts. The retention time window begins with a safety time window and ends after it is expected that a polling response message will next be sent. The safety time window includes a period before a next polling cycle starts not less than an execution time of a function about to be executed.