Methods and systems for scheduling successive transmissions in a wireless local area network (WLAN). An Access Point (AP) can generate a control signal that includes an identifier field for indicating that previous resource allocation from a previous transmission is to be repeated, and therefore the control signal itself does not contain resource allocation information. One or more stations (STAs) can receive the control signal and can use the previous resource allocation information stored in their respective memory to perform the transmission. The resource allocation can include three-dimensional (3D) resource allocation, which refers to time, frequency and space-domain multiplexing. Because the control signal has the identifier field, the AP can reduce network load and free resources for payload data or other traffic.