User terminal and radio communication method
The present invention is designed to transmit UCI adequately even when the formats of multiple UL control channels having different durations are made simple and/or common. A user terminal, according to the present invention, has a transmission section that transmits uplink control information (UCI) by using an uplink (UL) control channel, which has a first duration, or a UL control channel, which contains a plurality of units each constituted by the UL control channel of the first duration, and which has a second duration, and a control section that controls arrangement of a reference signal which is at least time-division-multiplexed with the UCI, and the ratio of the number of symbols in which the reference signal is arranged, to the number of all the symbols in the first duration, is 1/2 or less.
1. A terminal comprising:
a transmitting section that transmits uplink control information (UCI) using a physical uplink control channel (PUCCH) for a first duration, of which a number of symbols is 1 or 2, and a PUCCH for a second duration, of which a number of symbols is 4 or more and 14 or less, that are time-division multiplexed in a same slot; and
a control section that controls so that a number of demodulation reference signals (DMRSs) corresponding to the PUCCH for the first duration and a number of DMRSs corresponding to the PUCCH for the second duration are different in frequency direction,
wherein a PUCCH format of the PUCCH for the first duration is different from a PUCCH format of the PUCCH for the second duration.
2. The terminal according to claim 1 , wherein the control section determines a configuration of the PUCCH based on a number of bits of the UCI.
3. The terminal according to claim 1 , wherein a number of bits of the UCI transmitted using the first PUCCH is different form a number of bits of the UCI transmitted using the second PUCCH.
4. A radio communication method for a terminal comprising:
transmitting uplink control information (UCI) using a physical uplink control channel (PUCCH) for a first duration, of which a number of symbols is 1 or 2, and a PUCCH for a second duration, of which a number of symbols is 4 or more and 14 or less, that are time-division multiplexed in a same slot;
controlling so that a number of demodulation reference signals (DMRS s) corresponding to the PUCCH for the first duration and a number of DMRSs corresponding to the PUCCH for the second duration are different in frequency direction,
wherein a PUCCH format of the PUCCH for the first duration is different from a PUCCH format of the PUCCH for the second duration.
5. A system comprising a terminal and a base station, wherein
the terminal comprises:
a transmitting section that transmits uplink control information (UCI) using a physical uplink control channel (PUCCH) for a first duration, of which a number of symbols is 1 or 2, and a PUCCH for a second duration, of which a number of symbols is 4 or more and 14 or less, that are time-division multiplexed in a same slot; and
a control section that controls so that a number of demodulation reference signals (DMRSs) corresponding to the PUCCH for the first duration and a number of DMRSs corresponding to the PUCCH for the second duration are different in frequency direction,
wherein a PUCCH format of the PUCCH for the first duration is different from a PUCCH format of the PUCCH for the second duration; and
the base station comprises:
a receiving section that receives the UCI.