11b.2.2.4 Frame-related parameters The parameters associated with the PHY are listed in Table 11b-9 where CEIL is the ceiling function, which returns the smallest integer value greater than or equal to its argument. The maximum frame duration occurs when the number of octets in the PHY Payload field is 524288. Table 11b-9—Frame-related parameters Parameter Description Value Number of code repetitions in the SYNC sequence 14 or 28 NSYNC µs µs Duration of the SYNC sequence ~1.019 or ~2.036 TSYNC Number of code repetitions in SFD 1 NSFD Duration of the SFD ~0.073 µs TSFD Number of code repetitions i the CES 11 NCES Duration of the CES ~0.8000 µs TCES Number of code repetitions in the PHY preamble 26 or 40 Npre Duration of the PHY preamble ~1.891 µs or ~2.909 µs Tpre Length of the header in octets 14 Lhdr Number of subblocks in the base header CEIL[Lhdr × 8 × / (Lsubblock Nblock_hdr LSF LPW)] – Duration of the base frame header × =~0.691 µs Thdr Nblock_hdr Tblock Length of frame payload in octets Variable Lpayload Length of the MAC header in octets 4 Lhds Number of subframes Variable between 1 and 256 Nsubframe Length of FCS in octest 4 LFCS Length of MAC frame body LMFB Lpayload + (Lhds + LFCS) Nframe in octets Number of code repetitions in the PPRE 26 NPRPE Duration of PPRE ~1.891 µs TPRPE Number of blocks between PPRE Variable between 1024 and 4096 Nblock_PRPE Number of bits per chip in the MAC frame 1,2,3,3,4 and 6 for BPSK, QPSK, 8PSK, NCBPC body 16-QAM and 64 QAM, respectively Number of PPREs per frame CEIL[(Nblock_MFB / (LBlock × 512)] - 1 NPPRE_frame
11b.2.2.4 Frame-related parameters The parameters associated with the PHY are listed in Table 11b-9 where CEIL is the ceiling function, which returns the smallest integer value greater than or equal to its argument. The maximum frame duration occurs when the number of octets in the PHY Payload field is 524288. Table 11b-9—Frame-related parameters Parameter Description Value NSYNC Number of code repetitions in the SYNC sequence 14 or 28 TSYNC Duration of the SYNC sequence ~1.019 µs or ~2.036 µs NSFD Number of code repetitions in SFD 1 TSFD Duration of the SFD ~0.073 µs NCES Number of code repetitions i the CES 11 TCES Duration of the CES ~0.8000 µs Npre Number of code repetitions in the PHY preamble 26 or 40 Tpre Duration of the PHY preamble ~1.891 µs or ~2.909 µs Lhdr Length of the header in octets 14 Nblock_hdr Number of subblocks in the base header CEIL[Lhdr × 8 × LSF / (Lsubblock – LPW)] Thdr Duration of the base frame header Nblock_hdr × Tblock =~0.691 µs Lpayload Length of frame payload in octets Variable Lhds Length of the MAC header in octets 4 Nsubframe Number of subframes Variable between 1 and 256 LFCS Length of FCS in octest 4 LMFB Length of MAC frame body in octets Lpayload + (Lhds + LFCS) Nframe NPRPE Number of code repetitions in the PPRE 26 TPRPE Duration of PPRE ~1.891 µs Nblock_PRPE Number of blocks between PPRE Variable between 1024 and 4096 NCBPC Number of bits per chip in the MAC frame body 1,2,3,3,4 and 6 for BPSK, QPSK, 8PSK, 16-QAM and 64 QAM, respectively NPPRE_frame Number of PPREs per frame CEIL[(Nblock_MFB / (LBlock × 512)] - 1
15-16-0595-03-003d-proposal-for-ieee802-15-3d-thz-phy.docx