Data field General (See 22.3.10.1 (General) with TVHT replacing VHT). SERVICE field (See 22.3.10.2 (SERVICE with TVHT replacing VHT). 23.3.10.3 CRC calculation for TVHT-SIG-B The CRC calculation and insertion is illustrated in Figure 22-21 (VHT-SIG-B and SERVICE field relationship). The value of the CRC field shall be the ones complement of Equation (22-55) with the values of set to 21 for all Modes. Scrambler (see 22.3.10.4 (Scrambler)) 23.3.10.5 Coding (see 22.3.10.5 (Coding) with TVHT replacing VHT) 23.3.10.6 Stream parser After coding and puncturing, the data bit streams at the output of the FEC encoders are processed in groups of bits. Each of these groups is(#5185) re-arranged into blocks of bits (NSS,u blocks of NCBPS NSS NCBPSS bits in the case of an MU(#4668) transmission). This operation is referred to as parsing” and is NCBPSS,u “stream described in 22.3.10.6 (Stream parser). Segment parser The segment parser is not used in Clause 23. All modes of operation use an interleaver. BCC interleaver The BCC interleaver and deinterleaver for one frequency segment (TVHT_MODE_1) is as defined in 22.3.10.8 (BCC interleaver) for 40 MHz. The BCC interleaver and deinterleaver for TVHT_MODE_2C, TVHT_MODE_2N, TVHT_MODE_4C and TVHT_MODE_4N re-use the same formulas as described in 22.3.10.8 (BCC interleaver) for 40 MHz with values for , and as defined in Table 23-17. NROW NROT Table 23-17- Number of rows and columns in the interleaver TVHT_MODE_2C, TVHT_MODE_4C, Parameter TVHT_MODE_1 TVHT_MODE_2N TVHT_MODE_4N 18 27 48 8 x 9 x NBPSCS NBPSCS
Data field General (See 22.3.10.1 (General) with TVHT replacing VHT). SERVICE field (See 22.3.10.2 (SERVICE with TVHT replacing VHT). 23.3.10.3 CRC calculation for TVHT-SIG-B The CRC calculation and insertion is illustrated in Figure 22-21 (VHT-SIG-B and SERVICE field relationship). The value of the CRC field shall be the ones complement of Equation (22-55) with the values of set to 21 for all Modes. Scrambler (see 22.3.10.4 (Scrambler)) 23.3.10.5 Coding (see 22.3.10.5 (Coding) with TVHT replacing VHT) 23.3.10.6 Stream parser After coding and puncturing, the data bit streams at the output of the FEC encoders are processed in groups of NCBPS bits. Each of these groups is(#5185) re-arranged into NSS blocks of NCBPSS bits (NSS,u blocks of NCBPSS,u bits in the case of an MU(#4668) transmission). This operation is referred to as “stream parsing” and is described in 22.3.10.6 (Stream parser). Segment parser The segment parser is not used in Clause 23. All modes of operation use an interleaver. BCC interleaver The BCC interleaver and deinterleaver for one frequency segment (TVHT_MODE_1) is as defined in 22.3.10.8 (BCC interleaver) for 40 MHz. The BCC interleaver and deinterleaver for TVHT_MODE_2C, TVHT_MODE_2N, TVHT_MODE_4C and TVHT_MODE_4N re-use the same formulas as described in 22.3.10.8 (BCC interleaver) for 40 MHz with values for , NROW and NROT as defined in Table 23-17. Table 23-17- Number of rows and columns in the interleaver Parameter TVHT_MODE_1 TVHT_MODE_2C, TVHT_MODE_2N TVHT_MODE_4C, TVHT_MODE_4N 18 27 48 8 x NBPSCS 9 x NBPSCS
11-12-0809-05-00af-tgaf-phy-proposal.docx