The header dependent parameters shall be set according to Table 11b-7. The headers use an extended Hamming (EH) code, as defined in 11a.2.3.2.3. Table 11b-7— Header rate dependent parameters Code PW Number of Number Header Spreading bits Bandwidth Modulation length occupied of stuff rate Factor, FEC per (GHz) Scheme (chips), blocks, bits, (Mb/s) LSF block, LPW Nblock_hdr LSTUFF LCBPS /2-shift 162 4 EH 8 14 19 40 2.160 BPSK /2-shift 324 4 EH 8 14 19 40 4.320 BPSK /2-shift 648 4 EH 8 14 19 40 8.640 BPSK /2-shift 972 4 EH 8 14 19 40 12.960 BPSK /2-shift 1296 4 EH 8 14 19 40 17.280 BPSK /2-shift 1944 4 EH 8 14 19 40 25.920 BPSK /2-shift 3888 4 EH 8 14 19 40 51.840 BPSK /2-shift 5184 4 EH 8 14 19 40 69.120 BPSK 11b.2.2.3 Timing-related parameters 11b-8 lists the general timing parameters associated with the THz-SC PHY. Table 11b-8—Timing-related parameters Parameter Description Unit Formula Chip rate 1760 42240 Mchip/s Rc B×1760/[2.16GHz] … Chip duration ~0.023…~0.568 ns 1/RC TC … length 64 Lblock Pilot word length 0 8 chips LPW Pilot word 0 ~1,472…~4,544 ns TPW duration LPW×TC Data chips per 64 56 LDC block block duration ~37.504 ~1.472 ns Tblock … Lblock×Tc block rate 26.663 679.347 MHz 1/ Rblock … Tblock
The header dependent parameters shall be set according to Table 11b-7. The headers use an extended Hamming (EH) code, as defined in 11a.2.3.2.3. Table 11b-7— Header rate dependent parameters Bandwidth (GHz) Header rate (Mb/s) Modulation Scheme Spreading Factor, LSF FEC PW length (chips), LPW Code bits per block, LCBPS Number of occupied blocks, Nblock_hdr Number of stuff bits, LSTUFF 2.160 162 /2-shift BPSK 4 EH 8 14 19 40 4.320 324 /2-shift BPSK 4 EH 8 14 19 40 8.640 648 /2-shift BPSK 4 EH 8 14 19 40 12.960 972 /2-shift BPSK 4 EH 8 14 19 40 17.280 1296 /2-shift BPSK 4 EH 8 14 19 40 25.920 1944 /2-shift BPSK 4 EH 8 14 19 40 51.840 3888 /2-shift BPSK 4 EH 8 14 19 40 69.120 5184 /2-shift BPSK 4 EH 8 14 19 40 11b.2.2.3 Timing-related parameters 11b-8 lists the general timing parameters associated with the THz-SC PHY. Table 11b-8—Timing-related parameters Parameter Description Unit Formula Rc Chip rate 1760 … 42240 Mchip/s B×1760/[2.16GHz] TC Chip duration ~0.023…~0.568 … ns 1/RC Lblock length 64 LPW Pilot word length 0 8 chips TPW Pilot word duration 0 ~1,472…~4,544 ns LPW×TC LDC Data chips per block 64 56 Tblock block duration ~37.504 … ~1.472 ns Lblock×Tc Rblock block rate 26.663 … 679.347 MHz 1/ Tblock
15-16-0595-03-003d-proposal-for-ieee802-15-3d-thz-phy.docx