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This Concept Map, created with IHMC CmapTools, has information related to: 802.11 MAC, Duration/ID Field can indicate Association Identifier (AID), TXOP Duration Requested is only used by QoS Client STA, The IEEE 802.11 MAC Sublayer produces MAC Protocol Data Unit (MPDU), QoS Access Categories (ACs) such as AC_VI (Video), Frame Control Field has Order Subfield, Frame Retransmission may increase Latency, QoS Control Field identifies parameters for Enhanced Distributed Channel Access (EDCA), QoS AP grants Transmit Opportunity (TXOP) (Units of 32 μs), Management Frame (00b) such as Beacon, Bits 8-15 Subfield can be TXOP Duration Requested, MAC Service Data Unit (MSDU) encapsulates data from Logical Link Control (LLC) Sublayer, Sequence Control Field is comprised of 4-bit Fragment Number, Jitter can affect Time-Sensitive Applications, ACK Policy Subfield Bits 5-6 can be Block ACK Policy, Management Frame (00b) such as Association Request, MAC Protocol Data Unit (MPDU) has Frame Check Sequence (FCS), QoS Access Categories (ACs) such as AC_VO (Voice), Address Fields always include Transmitter Address (DA), Frame Control Field has Protocol Version Subfield, Queue Size can be used to determine duration of Transmit Opportunity (TXOP) (Units of 32 μs)