Ieee80211CompressedBlockAck¶

Namespace: inet

class Ieee80211CompressedBlockAck

8.3.1.9.3 Compressed BlockAck variant

Usage diagram¶

Inheritance diagram¶

Extends¶

Name	Type	Description
Ieee80211BlockAck	class	8.3.1.9 BlockAck frame format – 410p.

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
multiTid		chunkLength TODO
compressedBitmap
fragmentNumber	int	The BA Information field of the Compressed BlockAck frame comprises the Block Ack Starting Sequence Control subfield and the Block Ack Bitmap subfield, as shown in Figure 8-27.
startingSequenceNumber	SequenceNumberCyclic
blockAckBitmap	BitVector	64 bits
tidInfo	int	The TID_INFO subfield of the BA Control field of the Compressed BlockAck frame contains the TID for which this BlockAck frame is sent.

Properties¶

Name	Value	Description
beforeChange	handleChange()
descriptor	readonly
existingClass
packetData

Source code¶

//
// 8.3.1.9.3 Compressed BlockAck variant
//
class Ieee80211CompressedBlockAck extends Ieee80211BlockAck
{
    // chunkLength TODO
    multiTid = 0;
    compressedBitmap = 1;

    // The BA Information field of the Compressed BlockAck frame comprises the Block Ack Starting Sequence
    // Control subfield and the Block Ack Bitmap subfield, as shown in Figure 8-27.

    int fragmentNumber = 0;
    SequenceNumberCyclic startingSequenceNumber;
    BitVector blockAckBitmap; // 64 bits

    // The TID_INFO subfield of the BA Control field of the Compressed BlockAck frame contains the TID for
    // which this BlockAck frame is sent.
    int tidInfo;
}

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