User terminal and radio communication method

A system comprising:

• a terminal that comprises:
• a receiver that receives a synchronization signal block including a synchronization signal and a broadcast channel;
• and
• a processor of the terminal that, when a carrier frequency is smaller than or equal to a given value, determines an index of the synchronization signal block based on a subcarrier spacing, and based on a frequency range and a demodulation reference signal sequence for the broadcast channel, and that when the carrier frequency is larger than the given value, determines an index of the synchronization signal block based on the subcarrier spacing, and based on the demodulation reference signal sequence and bits of the broadcast channel;
• and
• a base station that comprises:
• a processor of the base station that when the carrier frequency is smaller than or equal to the given value, generates the demodulation reference signal sequence for the broadcast channel based on the index of the synchronization signal block, which is determined by the subcarrier spacing, and by the frequency range, and that when the carrier frequency is larger than the given value, generates the demodulation reference signal sequence for the broadcast channel and the bits of the broadcast channel based on the index of the synchronization signal block, which is determined by the subcarrier spacing;
• and
• a transmitter that transmits the synchronization signal block.