The present invention provides a method and a system for PSMP communication in a wireless communication system such as an IEEE 802.11n WLAN including an AP and multiple STAs. An example of such a PSMP communication involves transmitting a PSMP frame from the AP to the STAs over a wireless channel, detecting if the channel is idle for certain duration, and if the channel is idle for said certain duration, then performing a PSMP recovery process. The PSMP frame includes one or more STA info fields which specify schedules of periods for communication over the wireless channel in a PSMP sequence. In performing a PSMP recovery process, the AP constructs and broadcasts a PSMP recovery frame that allows STAs that missed the original PSMP frame to join the PSMP sequence.