Ieee80211BlockAck¶

Namespace: inet

class Ieee80211BlockAck

8.3.1.9 BlockAck frame format – 410p.

Inheritance 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
id	int
mutable	bool
complete	bool
correct	bool
properlyRepresented	bool
chunkLength	b
rawBin	string[]
rawHex	string[]
regionTags	SharingRegionTagSet::TagBaseRegionTag[]
chunkLength
type	Ieee80211FrameType	type and subtype
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
chunkLength
transmitterAddress	MacAddress	aka address2 (TA)
type		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.
blockAckPolicy	bool	Table 8-17—BA Ack Policy subfield: 0-Normal Acknowledgment, 1-No Acknowledgment.
multiTid	bool	Table 8-18—BlockAck frame variant encoding
compressedBitmap	bool
reserved	uint16_t

Properties¶

Name	Value	Description
beforeChange	handleChange()
descriptor	readonly
existingClass
packetData

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