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= 802.11 Reference Design: MAC State {{{MPDU Rx}}} State for Access Point =

[[Image(wiki:802.11/files:wlan_mac_cpu_high_ap_mpdu_rx.png,width=800)]]

The AP {{{MPDU Rx}}} state is responsible for implementing the following behaviors:

 * Handling the Probe Request/Response active scan handshake specified in Section 10.1.4.3 of the 802.2012 standard.
 * Handling the Authentication/Association handshake specified in Section 10.3 of the 802.11-2012 standard.
 * De-duplicating received MPDUs based on their sequence numbers, as specified in Section 9.3.2.10 of the 802.11-2012 standard.
 * Passing received and associated data MPDUs to the {{{Ethernet Tx}}} state.
 * Handling the deauthentication of non-associated stations when receiving non-MMPDU frames from them.

== Resources Used ==

=== Hardware Resources ===
 * [wiki:../../../../Architecture#FPGACores CPU_HIGH MicroBlaze]

=== Software Resources ===
 * [browser:ReferenceDesigns/w3_802.11/c/wlan_mac_high_ap/wlan_mac_ap.c wlan_mac_ap.c]
 * [browser:ReferenceDesigns/w3_802.11/c/wlan_mac_high_framework/wlan_mac_queue.c wlan_mac_queue.c]
 * [browser:ReferenceDesigns/w3_802.11/c/wlan_mac_high_framework/wlan_mac_util.c wlan_mac_util.c]