Terminal apparatus, base station apparatus, communication method, and integrated circuit
AssigneesSharp Kabushiki Kaisha, FG Innovation Company Limited
InventorsShoichi Suzuki, Tomoki Yoshimura, Tatsushi Aiba, Wataru Ouchi, Takashi Hayashi, Liqing Liu
Life of this patent
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Abstract
A terminal apparatus receives an uplink grant used to schedule a PUSCH; transmits, in a case that an HARQ-ACK request included in the uplink grant is set so as to trigger transmission of an HARQ-ACK, the HARQ-ACK on the PUSCH corresponding to the uplink grant; and transmits, in a case that a CSI request included in the uplink grant is set so as to trigger a CSI report, an RI on the PUSCH corresponding to the uplink grant, in which an index of an SC-FDMA symbol in which the RI is transmitted is provided based on a value of the HARQ-ACK request.
Claims20
A terminal apparatus comprising:
- a receiver configured to receive an uplink grant used to schedule a Physical Uplink Shared Channel (PUSCH), the uplink grant comprising a Hybrid Automatic Repeat reQuest-Acknowledgement (HARQ-ACK) request field and a Channel State Information (CSI) request field;
- a processor configured to obtain an index based on a value of the HARQ-ACK request field, the index indicating one of Single Carrier-Frequency Division Multiple Access (SC-FDMA) symbols in the PUSCH corresponding to the uplink grant;
- and
- a transmitter configured to:
- transmit a HARQ-ACK corresponding to the uplink grant in a case that the HARQ-ACK request field is set to trigger HARQ-ACK transmission on the PUSCH;
- and
- transmit, based on the index, a Rank Indicator (RI) on the one of the SC-FDMA symbols in the PUSCH corresponding to the uplink grant in a case that the CSI request field is set to trigger a CSI report.
A base station apparatus comprising:
- a transmitter configured to transmit an uplink grant used to schedule a Physical Uplink Shared Channel (PUSCH), the uplink grant comprising a Hybrid Automatic Repeat reQuest-Acknowledgement (HARQ-ACK) request field and a Channel State Information (CSI) request field, the HARQ-ACK request field including a value;
- and
- a receiver configured to:
- receive a HARQ-ACK corresponding to the uplink grant when the HARQ-ACK request field is set to trigger HARQ-ACK transmission on the PUSCH;
- receive, based on an index, a Rank Indicator (RI) on one of SC-FDMA symbols in the PUSCH corresponding to the uplink grant when the CSI request field is set to trigger a CSI report,
- wherein the index indicates the one of the SC-FDMA symbols in the PUSCH and is calculated based on the value of the HARQ-ACK request field.
A communication method for a terminal apparatus, the communication method comprising:
- receiving an uplink grant used to schedule a Physical Uplink Shared Channel (PUSCH), the uplink grant comprising a Hybrid Automatic Repeat reQuest-Acknowledgement (HARQ-ACK) request field and a Channel State Information (CSI) request field;
- obtaining an index based on a value of the HARQ-ACK request field, the index indicating one of Single Carrier-Frequency Division Multiple Access (SC-FDMA) symbols in the PUSCH corresponding to the uplink grant;
- transmitting a HARQ-ACK corresponding to the uplink grant in a case that the HARQ-ACK request field is set to trigger HARQ-ACK transmission on the PUSCH;
- and
- transmitting, based on the index, a Rank Indicator (RI) on the one of the SC-FDMA symbols in the PUSCH corresponding to the uplink grant in a case that the CSI request field is set to trigger a CSI report.
A communication method for a base station apparatus, the communication method comprising:
- transmitting an uplink grant used to schedule a Physical Uplink Shared Channel (PUSCH), the uplink grant comprising a Hybrid Automatic Repeat reQuest-Acknowledgement (HARQ-ACK) request field and a Channel State Information (CSI) request field, the HARQ-ACK request field including a value;
- receiving a HARQ-ACK corresponding to the uplink grant when the HARQ-ACK request field is set to trigger HARQ-ACK transmission on the PUSCH;
- and
- receiving, based on an index, a Rank Indicator (RI) on one of SC-FDMA symbols in the PUSCH corresponding to the uplink grant when the CSI request field is set to trigger a CSI report,
- wherein the index indicates the one of the SC-FDMA symbols in the PUSCH and is calculated based on the value of the HARQ-ACK request field.
Dependencies are inferred from the claim text.