RTW_OFDM_SWING_TABLE_SIZE
ofdm_index = clamp_t(s8, ofdm_index, 0, RTW_OFDM_SWING_TABLE_SIZE - 1);
if (ofdm_index >= RTW_OFDM_SWING_TABLE_SIZE)
ofdm_index = RTW_OFDM_SWING_TABLE_SIZE - 1;