Length of the base headers in octets 32 Lhdr Number of blocks in the base frame 8 header Duration of the base header X Thdr Nblock_hdr Tblock Length of frame payloads in octets variable Lpayload Length of FCS in octets 4 LFCS Length of the MAC frame body in octets + LMFB Lpayload LFCS Number of coded bits per block in the 508 LCBPS MAC frame body CEIL[(LMFB X 8)/(RFEC X LCBPS)] Number of blocks for the MAC frame body (RFEC : FEC rate) Duration of the MAC frame body X TMFB Nblock_MFB Tblock including Pilot symbols Duration of the PHY Payload X Tdatafield Nblock_MFB Tblock Duration of the frame + + Tframe Tpre Thdr Tdatafield 12a.3.2.5 Modulation After channel encoding and spreading, the resulting bits shall be modulated using OOK as specified in 12a.3.2.5.1. 12a.3.2.5.1 OOK HRCP-OOK frames shall be modulated using OOK. The OOK modulation shall use variable amplitudes to represent the data. As shown in Figure 12a.3.2, OOK shall be represented by two points in the constellation map. The simplest form of OOK represents a binary '1' with the presence of the signal, and a binary '0' with the absence of it. The normalization factor, shall be sqrt(2). KMOD Figure 12a.3-2 - Constellation diagram for OOK
Lhdr Length of the base headers in octets 32 Number of blocks in the base frame header 8 Thdr Duration of the base header Nblock_hdr X Tblock Lpayload Length of frame payloads in octets variable LFCS Length of FCS in octets 4 LMFB Length of the MAC frame body in octets Lpayload + LFCS LCBPS Number of coded bits per block in the MAC frame body 508 Number of blocks for the MAC frame body CEIL[(LMFB X 8)/(RFEC X LCBPS)] (RFEC : FEC rate) TMFB Duration of the MAC frame body including Pilot symbols Nblock_MFB X Tblock Tdatafield Duration of the PHY Payload Nblock_MFB X Tblock Tframe Duration of the frame Tpre + Thdr + Tdatafield 12a.3.2.5 Modulation After channel encoding and spreading, the resulting bits shall be modulated using OOK as specified in 12a.3.2.5.1. 12a.3.2.5.1 OOK HRCP-OOK frames shall be modulated using OOK. The OOK modulation shall use variable amplitudes to represent the data. As shown in Figure 12a.3.2, OOK shall be represented by two points in the constellation map. The simplest form of OOK represents a binary '1' with the presence of the signal, and a binary '0' with the absence of it. The normalization factor, KMOD shall be sqrt(2). Figure 12a.3-2 - Constellation diagram for OOK
15-15-0664-00-003e-proposal-for-ieee802-15-3e-ook-phy-draft-text.docx