Potrzebuje tlumaczenie tego:
"The PPDU tail bit field shall be six bits of “0,” which are required to return the convolutional encoder to the
“zero state.” This procedure improves the error probability of the convolutional decoder, which relies on
future bits when decoding and which may be not be available past the end of the message. The PLCP tail bit
field shall be produced by replacing six scrambled “zero” bits following the message end with six nonscrambled
“zero” bits."
"The number of bits in the DATA field shall be a multiple of NCBPS, the number of coded bits in an OFDM
symbol (48, 96, 192, or 288 bits). To achieve that, the length of the message is extended so that it becomes a
multiple of NDBPS, the number of data bits per OFDM symbol. At least 6 bits are appended to the message,
in order to accommodate the TAIL bits, as described in 17.3.5.2. The number of OFDM symbols, NSYM; the
number of bits in the DATA field, NDATA; and the number of pad bits, NPAD, are computed from the length
of the PSDU (LENGTH) as follows:"
The DATA field, composed of SERVICE, PSDU, tail, and pad parts, shall be scrambled with a length-127
frame-synchronous scrambler. The octets of the PSDU are placed in the transmit serial bit stream, bit 0 first
and bit 7 last. The frame synchronous scrambler uses the generator polynomial S(x) as follows, and is illustrated
in Figure 113:"
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