Packet Ieee80211CompressedBlockAckReq

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

C++ definition

(no description)

Usage diagram:

The following diagram shows usage relationships between types. Unresolved types are missing from the diagram.

Inheritance diagram:

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

Extends:

Name	Type	Description
Ieee80211BlockAckReq	packet	8.3.1.8 BlockAckReq frame format

Fields:

Name	Type	Description
tidInfo	int	The TID_INFO subfield of the BAR Control field of the Compressed BlockAckReq frame contains the TID for which a BlockAck frame is requested.
type	short	type and subtype
fragmentNumber	int
startingSequenceNumber	int
multiTid	bool
compressedBitmap	bool
barAckPolicy	bool	0-Normal Acknowledgment, 1-No Acknowledgment.
byteLength
transmitterAddress	MACAddress	aka address2
toDS	bool
fromDS	bool
retry	bool
moreFragments	bool
duration	simtime_t	TODO: rename to durationField (levy)
AID	short	"id" (Association ID) in the Duration/ID field (-1=no ID)
receiverAddress	MACAddress	aka address1
MACArrive	simtime_t	FIXME remove it, technical data, used inside of MAC module

Source code:

packet Ieee80211CompressedBlockAckReq extends Ieee80211BlockAckReq
{
    int tidInfo; // The TID_INFO subfield of the BAR Control field of the Compressed BlockAckReq frame contains the TID for which a BlockAck frame is requested.

    // 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_REQ;
    // The BAR Information field of the Compressed BlockAckReq frame contains the Block Ack Starting
    // Sequence Control subfield, as shown in Figure 8-21. The Starting Sequence Number subfield of the Block
    // Ack Starting Sequence Control subfield contains the sequence number of the first MSDU or A-MSDU for
    // which this BlockAckReq frame is sent. The Fragment Number subfield of the Block Ack Starting Sequence
    // Control subfield is set to 0.

    int fragmentNumber = 0;
    int startingSequenceNumber;

    multiTid = 0;
    compressedBitmap = 1;
}