Base station apparatus, terminal apparatus, integrated circuit, and radio communication method
A terminal apparatus includes a configuration unit that sets a first configuration, a second configuration, and a third configuration. The configuration unit specifies an uplink subframe in which transmission of PUSCH is possible according to the second configuration, when the first configuration and the second configuration are set and the third configuration is not set, the first configuration is used to determine a correspondence between a subframe in which PDCCH is arranged and a subframe in which PUSCH corresponding to the PDCCH is arranged, the second configuration is used to determine a correspondence between a subframe in which PDSCH is arranged and a subframe in which a HARQ-ACK corresponding to the PDSCH is transmitted, and the third configuration is used to specify a subframe for which the PDCCH is monitored.
1. A terminal apparatus configured with a serving cell, the terminal apparatus comprising:
receiving circuitry configured to and/or programmed to receive first information indicating an uplink-downlink configuration, second information indicating an uplink-downlink configuration, and third information indicating an uplink-downlink configuration; and
transmitting circuitry configured to and/or programmed to transmit a sounding reference signal,
wherein
the transmitting circuitry is configured not to and/or programmed not to transmit the sounding reference signal in a subframe indicated as a downlink subframe by the uplink-downlink configuration based on the third information, and
the transmitting circuitry is configured not to and/or programmed not to transmit the sounding reference signal in a subframe indicated as the downlink subframe by the uplink-downlink configuration based on the second information in a case that the third information is not detected.
2. The terminal apparatus according to claim 1 , wherein
the transmitting circuitry is configured to and/or programmed to perform, based on an uplink reference uplink downlink configuration, a transmission of a physical uplink shared channel corresponding to a physical downlink control channel,
the transmitting circuitry is configured to and/or programmed to perform, based on a downlink reference uplink downlink configuration, a transmission of an hybrid automatic repeat request acknowledgement corresponding to a physical downlink shared channel,
the uplink-downlink configuration indicated by the first information is the uplink reference uplink-downlink configuration,
the uplink-downlink configuration indicated by the second information is the downlink reference uplink-downlink configuration, and
the uplink-downlink configuration indicated by the third information is used for monitoring of a physical downlink control channel.
3. The terminal apparatus according to claim 1 , wherein
the sounding reference signal is a periodic sounding reference signal.
4. A radio communication method used in a terminal apparatus configured with a serving cell, the radio communication method comprising:
receiving first information indicating an uplink-downlink configuration, second information indicating an uplink-downlink configuration, and third information indicating an uplink-downlink configuration; and
transmitting a sounding reference signal,
wherein
the sounding reference signal is not transmitted in a subframe indicated as a downlink subframe by the uplink-downlink configuration based on the third information, and
the sounding reference signal is not transmitted in a subframe indicated as the downlink subframe by the uplink-downlink configuration based on the second information in a case that the third information is not detected.
5. The radio communication method according to claim 4 , comprising
performing, based on an uplink reference uplink downlink configuration, a transmission of a physical uplink shared channel corresponding to a physical downlink control channel,
performing, based on a downlink reference uplink downlink configuration, a transmission of an hybrid automatic repeat request acknowledgement corresponding to a physical downlink shared channel,
wherein
the uplink-downlink configuration indicated by the first information is the uplink reference uplink-downlink configuration,
the uplink-downlink configuration indicated by the second information is the downlink reference uplink-downlink configuration, and
the uplink-downlink configuration indicated by the third information is used for monitoring of a physical downlink control channel.
6. The radio communication method according to claim 4 , wherein
the sounding reference signal is a periodic sounding reference signal.
7. A integrated circuit to be mounted in a terminal apparatus configured with a serving cell, the integrated circuit causing the terminal apparatus to perform at least functions of:
receiving first information indicating an uplink-downlink configuration, second information indicating an uplink-downlink configuration, and third information indicating an uplink-downlink configuration; and
transmitting a sounding reference signal,
wherein
the sounding reference signal is not transmitted in a subframe indicated as a downlink subframe by the uplink-downlink configuration based on the third information, and
the sounding reference signal is not transmitted in a subframe indicated as the downlink subframe by the uplink-downlink configuration based on the second information in a case that the third information is not detected.
8. The integrated circuit according to claim 7 , further causing the terminal apparatus to perform functions of
performing, based on an uplink reference uplink downlink configuration, a transmission of a physical uplink shared channel corresponding to a physical downlink control channel, and
performing, based on a downlink reference uplink downlink configuration, a transmission of an hybrid automatic repeat request acknowledgement corresponding to a physical downlink shared channel,
wherein
the uplink-downlink configuration indicated by the first information is the uplink reference uplink-downlink configuration,
the uplink-downlink configuration indicated by the second information is the downlink reference uplink-downlink configuration, and
the uplink-downlink configuration indicated by the third information is used for monitoring of a physical downlink control channel.
9. The integrated circuit according to claim 7 , wherein
the sounding reference signal is a periodic sounding reference signal.
10. A base station apparatus which communicates with a terminal apparatus configured with a serving cell, the base station apparatus comprising:
transmitting circuitry configured to and/or programmed to transmit first information indicating an uplink-downlink configuration, second information indicating an uplink-downlink configuration, and third information indicating an uplink-downlink configuration; and
receiving circuitry configured to and/or programmed to receive a sounding reference signal from the terminal apparatus,
wherein
the receiving circuitry is configured not to and/or programmed not to receive the sounding reference signal from the terminal apparatus in a subframe indicated as a downlink subframe for the terminal apparatus by the uplink-downlink configuration based on the third information, and
the receiving circuitry is configured not to and/or programmed not to receive the sounding reference signal from the terminal apparatus in a subframe indicated as the downlink subframe for the terminal apparatus by the uplink-downlink configuration based on the second information in a case that the third information is not transmitted for the terminal apparatus.