Ieee80211BasicBlockAck¶

//
// 8.3.1.9.2 Basic BlockAck variant -- 411p.
//
class Ieee80211BasicBlockAck extends Ieee80211BlockAck
{
    chunkLength = LENGTH_BASIC_BLOCKACK - B(4);
    multiTid = 0;
    compressedBitmap = 0;

    // The BA Information field of the Basic BlockAck frame comprises the Block Ack Starting Sequence Control
    // subfield and the Block Ack Bitmap subfield, as shown in Figure 8-26.

    int fragmentNumber = 0; // ??
    SequenceNumberCyclic startingSequenceNumber;
    // The Block Ack Bitmap subfield is 128 octets in length and is used to indicate the received status of up to
    // 64 MSDUs. Bit position n of the Block Ack bitmap, if equal to 1, acknowledges receipt of an MPDU with an
    // MPDU sequence control value equal to (Block Ack Starting Sequence Control + n). Bit position n of the
    // Block Ack bitmap, if equal to 0, indicates that an MPDU with MPDU sequence control value equal to
    // (Block Ack Starting Sequence Control + n) has not been received. Each of the MPDU Sequence Control
    // field and Block Ack Starting Sequence Control subfield values are treated as a 16-bit unsigned integer. For
    // unused fragment numbers of an MSDU, the corresponding bits in the bitmap are set to 0.
    BitVector blockAckBitmap[64]; // 64 * 16 bitmatrix

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