Radio transmission device
A radio transmission device includes a transmitter ( 209 ) and a controller ( 203 ). The transmitter ( 209 ) transmits a radio signal in which a demodulation reference signal is mapped. When a plurality of the demodulation reference signals are to be mapped respectively to first and second unit resources consecutive in a time domain of the radio signal, the controller ( 203 ) applies the same sequence to each of the plurality of the demodulation reference signals to be mapped to the first and the second unit resources.
1. A terminal, comprising:
a transmitter that performs transmission processing of an uplink shared channel; and
a processor that, when transmitting a demodulation reference signal on a single carrier using a first symbol and a second symbol which are consecutive in a time domain in the uplink shared channel, applies a sequence used for the demodulation reference signal in the first symbol to the demodulation reference signal in the second symbol,
wherein the sequence depends on a sequence group number, a symbol number of a symbol to which the demodulation reference signal is mapped, and a slot number of a slot to which the demodulation reference signal is mapped.
2. A radio communication method, comprising:
performing transmission processing of an uplink shared channel; and
when transmitting a demodulation reference signal on a single carrier using a first symbol and a second symbol which are consecutive in a time domain in the uplink shared channel, applying a sequence used for the demodulation reference signal in the first symbol to the demodulation reference signal in the second symbol,
wherein the sequence depends on a sequence group number, a symbol number of a symbol to which the demodulation reference signal is mapped, and a slot number of a slot to which the demodulation reference signal is mapped.