If interference is possible, the first AP 104c may send a handshake agreement to the second AP 104g and/or other APs 104 in BSS 100a and/or BSS 100b, in signal 308. The handshake can be an indication that the first AP 104a wishes to do joint OFDMA scheduling between the two BSSs 100a, 100b. This handshake may be acknowledged by the second AP 104g, in the signals 308. Upon a handshake process being completed, the first AP 104c and second AP 104g may be agreed to conduct joint OFDMA scheduling. Thereinafter, either the first AP 104c or the second AP 104g may send a time synchronization, in signal 312. This signal 312 indicates the synchronization of the time, possibly using the IEEE 1588 PTP. The time may be sent in such signal 312 from one of the APs 104, and an acknowledgement of the reception of the signal may be sent out from the receiving APs 104.

Thereinafter, the APs 104c, 104g can agree to a master/slave relationship by exchanging signals 316. Here, one or more of the APs 104 may be selected or may volunteer as a master by sending out a signal 316 with their ID and an indication that the AP 104 will function as the master AP 104. The other APs 104 may recognize the selection or election of this AP 104 as the master by sending another acknowledgement signal, in signals 316. Some of the information that may be exchanged during this master/slave determination, in signals 316, may be as shown in data structure 404 of FIG. 4A. Once the master/slave relationships are determined, the master AP, e.g., AP 104a, may then determine an OFDMA schedule.