Definitions - 4

contention-free (CF) pollable: A station (STA) that is able to respond to a CF poll with a data frame if such
a frame is queued and able to be generated.
Counter mode with Cipher-block chaining Message authentication code (CCM): A symmetric key
block cipher mode providing confidentiality using counter mode (CTR) and data origin authenticity using
cipher-block chaining message authentication code (CBC-MAC).
NOTE—See IETF RFC 3610.
cryptographic encapsulation: The process of generating the cryptographic payload from the plaintext data.
This comprises the cipher text as well as any associated cryptographic state required by the receiver of the
data, e.g., initialization vectors (IVs), sequence numbers, message integrity codes (MICs), key identifiers.
data confidentiality: A property of information that prevents disclosure to unauthorized individuals,
entities, or processes.
deauthentication service: The service that voids an existing authentication relationship.
decapsulate: To recover an unprotected frame from a protected one.
decapsulation: The process of generating plaintext data by decapsulating an encapsulated frame.
deep sleep mode: A mesh power mode in which the mesh station (STA) operates either in the Awake state
or in the Doze state towards a neighbor mesh STA, and is not expected to receive beacons from this
neighbor mesh STA.
delivery-enabled access category (AC): A quality-of-service (QoS) access point (AP) AC where the AP is
allowed to use enhanced distributed channel access (EDCA) to deliver traffic from the AC to a QoS station
(STA) in an unscheduled service period (SP) triggered by the STA.
dependent station (STA): A STA that is not registered and whose operational parameters are dictated by
messages it receives from an enabling STA. Once enabled by the dynamic STA enablement (DSE) process,
a dependent STA’s continued operation becomes contingent upon being able to receive messages from its
enabling STA over the air.
destination mesh station (STA): A mesh STA that is the final destination of a MAC service data unit
(MSDU). This mesh STA might reside in a proxy mesh gate that might forward the MSDU to a STA outside
of the MBSS. A destination mesh STA might be an end station as defined in IEEE Std 802.1.