8.4.14.1.1 Receiver sensitivity Change Table 8-87 as indicated: Table 8-87-Receiver SNR assumption (BER = 10-6) Modulation Coding Rate Receiver SNR (dB) QPSK 1/2 5 3/4 8 1/2 10.5 3/4 14 64QAM 1/2 16 2/3 18 3/4 20 5/6 22 Insert new subclause 12.9 as follows: 12.9 WirelessMAN OFDMA TDD Sub-1.25 MHz Channel Bandwidths This subclause defines system requirements for systems operating with channel bandwidths less than 1.25 MHz. To maintain sufficient subcarrier spacing in support of moderate mobility requirements and intercarrier interference requirements, Channel Subgroups 1, 2, and 3 shall use only a subset of the available subchannels. Groups 1 and 2 shall use Band AMC 1x6 permutation (1 bin x 6 symbols). Group 3 and Group 4 shall use Band AMC and either 2x3 (2 bins x 3 symbols) or 1x6 permutation. 12-41a—Profile definitions 0.10 MHz to 0.15 MHz BW Channel Subgroup 1 Identifier Channel Subgroup 1 Description OFDMA_ProfSM1 1/4-DL Preamble-Band AMC-27 subcarrier & Code set 3 for initial & periodic ranging OFDMA_ProfS1 WirelessMAN-OFDMA 0.10 MHz channel basic PHY TDD profile, Band AMC 1x6 OFDMA_ProfS2 WirelessMAN-OFDMA 0.15 MHz channel basic PHY TDD profile, Band AMC 1x6
8.4.14.1.1 Receiver sensitivity Change Table 8-87 as indicated: Table 8-87-Receiver SNR assumption (BER = 10-6) Modulation Coding Rate Receiver SNR (dB) QPSK 1/2 5 3/4 8 1/2 10.5 3/4 14 64QAM 1/2 16 2/3 18 3/4 20 5/6 22 Insert new subclause 12.9 as follows: 12.9 WirelessMAN OFDMA TDD Sub-1.25 MHz Channel Bandwidths This subclause defines system requirements for systems operating with channel bandwidths less than 1.25 MHz. To maintain sufficient subcarrier spacing in support of moderate mobility requirements and intercarrier interference requirements, Channel Subgroups 1, 2, and 3 shall use only a subset of the available subchannels. Groups 1 and 2 shall use Band AMC 1x6 permutation (1 bin x 6 symbols). Group 3 and Group 4 shall use Band AMC and either 2x3 (2 bins x 3 symbols) or 1x6 permutation. 12-41a—Profile definitions 0.10 MHz to 0.15 MHz BW Channel Subgroup 1 Identifier Channel Subgroup 1 Description OFDMA_ProfSM1 1/4-DL Preamble-Band AMC-27 subcarrier & Code set 3 for initial & periodic ranging OFDMA_ProfS1 WirelessMAN-OFDMA 0.10 MHz channel basic PHY TDD profile, Band AMC 1x6 OFDMA_ProfS2 WirelessMAN-OFDMA 0.15 MHz channel basic PHY TDD profile, Band AMC 1x6
16-17-0001-03-000s-draft-proposed-amendments-to-802-16-to-support-1-25-mhz-channels.docx