Frame Types
http://www.wi-fiplanet.com/tutorials/article.php/1447501
Management Frames:
Authentication frame, Deauthentication frame
Association request frame, Association response frame, Disassociation frame
Reassociation request frame, Reassociation response frame
Authentication frame, Deauthentication frame
Probe request frame, Probe response frame
Control Frames
Data Frames
PLME
On the other hand PLME stands for Physical Layer Management Entity.