ed/ICV Unicast MIMO_FBK MS as a response to Multi-BS MIMO Feedback Polling A-MAP IE Feedback requesting multi-BS MIMO feedback. AAI_MultiBS The AAI_MULTI_ Normal Operation Encrypted/ICV Unicast MIMO-REQ BS_MIMO-REQ message is Multi-BS MIMO transmitted by the MS to Request report its preference on single BS precoding with Multi-BS MIMO coordination or multi- BS joint MIMO processing. AAI_CLC-REQ The MS sends this message Normal Operation Encrypted/ICV Unicast Collocated to activate, terminate, or Coexistence reconfigure one or several Request Type I, Type II, and/or Type III CLC classes. The AAI_CLC- REQ message is sent from the MS to the BS on the mobile station's basic connection. The MS may include AAI_CLC-INFO parameter fields. AAI_CLC-RSP The BS sends the AAI_CLC- Normal Operation Encrypted/ICV Unicast Collocated RSP message to the MS on Coexistence the mobile station's basic Response connection in response to AAI_CLC-REQ. AAI_CLC-INFO The parameters of this Normal Operation Encrypted/ICV Unicast Collocated message are applicable to Coexistence AAI_REG-RSP, AAI_RNG- Information REQ, AAI_RNG-RSP, AAI_CLC-REQ, AAI_SBC- REQ, and AAI_SBC-RSP messages. AAI_FFR-CMD This message is transmitted Normal Operation Encrypted/ICV Unicast Fractional Frequency by the BS to instruct the MS Reuse Command to perform measurement over specific frequency partition. AAI_FFR-REP This message is sent by an Normal Operation Encrypted/ICV Unicast Fractional Frequency MS to report the interference Reuse Report statistics of frequency partition. (Continued) Table 6-8 IEEE 802. 16m MAC Management/Contro Messages [1,2] Continued 802.16- IEEE 802.16m Standard MAC Management Equivalent Security Connection Message Message Description Usage Message Attributes AAI_ARQ-Feedback This message is used by Normal Operation Encrypted/ICV Unicast Stand-alone ARQ a receiver to inform the Feedback Feedback transmitter of the reception status of a number of ARQ blocks or ARQ sub-blocks. The ARQ feedback IE is included in this message. AAI_ARQ-Discard Thi