Ieee80211BlockAck

class

8.3.1.9 BlockAck frame format -- 410p.

Inheritance diagram

The following diagram shows inheritance relationships for this type. Unresolved types are missing from the diagram.

Extends

Name	Type	Description
Ieee80211TwoAddressHeader	class	Format of a 802.11 frame with address1 and address2 present

Known subclasses

Name	Type	Description
Ieee80211BasicBlockAck	class	8.3.1.9.2 Basic BlockAck variant -- 411p.
Ieee80211CompressedBlockAck	class	8.3.1.9.3 Compressed BlockAck variant
Ieee80211MultiTidBlockAck	class	8.3.1.9.4 Multi-TID BlockAck variant

Fields

Name	Type	Description
type	Ieee80211FrameType	type and subtype
blockAckPolicy	bool	BA Control
multiTid	bool	Table 8-18—BlockAck frame variant encoding
compressedBitmap	bool
reserved	uint16_t
chunkLength	b
transmitterAddress	MacAddress	aka address2 (TA)
toDS	bool
fromDS	bool
moreFragments	bool
retry	bool
powerMgmt	bool	unused
moreData	bool	unused
protectedFrame	bool	unused
order	bool	unused
durationField	simtime_t	"duration" in the Duration/ID field (-1=no duration)
AID	short	"id" (Association ID) in the Duration/ID field (-1=no ID)
receiverAddress	MacAddress	aka address1 (RA)
MACArrive	simtime_t	FIXME remove it, technical data, used inside of MAC module
mutable	bool
complete	bool
correct	bool
properlyRepresented	bool
rawBin	string[]
rawHex	string[]
tags	RegionTagSet::cObjectRegionTag[]

Source code

//
// 8.3.1.9 BlockAck frame format -- 410p.
//
class Ieee80211BlockAck extends Ieee80211TwoAddressHeader
{
    // The RA field of the BlockAck frame is the address of the recipient STA that requested the Block Ack.
    // The TA field is the address of the STA transmitting the BlockAck frame.
    type = ST_BLOCKACK;

    // BA Control
    bool blockAckPolicy; // Table 8-17—BA Ack Policy subfield: 0-Normal Acknowledgment, 1-No Acknowledgment.

    // Table 8-18—BlockAck frame variant encoding
    bool multiTid;
    bool compressedBitmap;
    uint16_t reserved = 0;
}

File: src/inet/linklayer/ieee80211/mac/Ieee80211Frame.msg