6.2.3.1.1. RATE The RATE field consists of three bits and indicates the QAM constellation size and the FEC rate (achieved with the use of a convolutional encoder and puncturing) used for the subsequent payload. The values specified in Table 5 are valid for the RATE field. Table 6.2.3.1.1.1: Valid RATE values Data rate Data rate Data rate Data rate Data rate (Mb/s) (Mb/s) R0-R2 Modulation FEC rate (Mb/s) (Mb/s) (Mb/s) (40 MHz) (20 MHz) (15 MHz) (10 MHz) (5 MHz) 110 1/2 12 6 4.5 3 1.5 BPSK 111 3/4 18 9 6.75 4.5 2.25 010 1/2 24 12 9 6 3 4-QAM 011 3/4 36 18 13.5 9 4.5 100 1/2 48 24 18 12 6 16-QAM 101 3/4 72 36 27 18 9 000 2/3 96 48 36 24 12 64-QAM 001 3/4 108 54 40.5 27 13.5 6.2.3.1.2. Reserved bits (R) One bit is reserved for introducing additional transmission in future modifications of the standard. 6.2.3.1.3. LENGTH An 11-bit which indicates the size of the payload in octets. Hence, the size of the payload is between 0 and 2048 octets. 6.2.3.1.4. Advanced Modulation Header Bit (A) One bit indicating whether an Advanced Modulation Header is included in the next OFDM frame: 1 The next OFDM frame is an Advanced Modulation Header. → 0 The next OFDM frame is part of the DATA portion (payload) of the PHY frame. →
6.2.3.1.1. RATE The RATE field consists of three bits and indicates the QAM constellation size and the FEC rate (achieved with the use of a convolutional encoder and puncturing) used for the subsequent payload. The values specified in Table 5 are valid for the RATE field. Table 6.2.3.1.1.1: Valid RATE values R0-R2 Modulation FEC rate Data rate (Mb/s) (40 MHz) Data rate (Mb/s) (20 MHz) Data rate (Mb/s) (15 MHz) Data rate (Mb/s) (10 MHz) Data rate (Mb/s) (5 MHz) 110 BPSK 1/2 12 6 4.5 3 1.5 111 3/4 18 9 6.75 4.5 2.25 010 4-QAM 1/2 24 12 9 6 3 011 3/4 36 18 13.5 9 4.5 100 16-QAM 1/2 48 24 18 12 6 101 3/4 72 36 27 18 9 000 64-QAM 2/3 96 48 36 24 12 001 3/4 108 54 40.5 27 13.5 6.2.3.1.2. Reserved bits (R) One bit is reserved for introducing additional transmission in future modifications of the standard. 6.2.3.1.3. LENGTH An 11-bit which indicates the size of the payload in octets. Hence, the size of the payload is between 0 and 2048 octets. 6.2.3.1.4. Advanced Modulation Header Bit (A) One bit indicating whether an Advanced Modulation Header is included in the next OFDM frame: 1 → The next OFDM frame is an Advanced Modulation Header. 0 → The next OFDM frame is part of the DATA portion (payload) of the PHY frame.
15-16-0363-00-007a-text-input-lifi-low-bandwidth-phy-and-mac-d0.docx