Terminal, base station, system, and feedback method
AssigneeNtt Docomo, Inc.
InventorsShimpei Yasukawa, Kazuaki Takeda, Hiroki Harada, Satoshi Nagata, Qun Zhao
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Abstract
A terminal is disclosed that includes a receiver that receives sidelink control information and data in sidelink and a transmitter that transmits a feedback signal corresponding to the data on a sidelink feedback channel. The transmitter determines a resource for transmitting the feedback signal based on a correspondence between a resource of the data and a resource for feedback. In other aspects, a base station, systems, and feedback methods are also disclosed.
Claims20
A terminal comprising:
- a receiver that receives sidelink control information and data in sidelink;
- and
- a transmitter that transmits a feedback signal corresponding to the data on a sidelink feedback channel;
- wherein the transmitter determines a resource for transmitting the feedback signal based on a correspondence between a resource of the data and a resource for feedback.
A terminal comprising:
- a transmitter that transmits sidelink control information and data in sidelink;
- and
- a receiver that receives a feedback signal for the data on a sidelink feedback channel,
- wherein the receiver receives the feedback signal on a resource determined based on a correspondence between a resource for the data and a resource for feedback.
A base station comprising:
- a receiver that receives a scheduling request from a terminal;
- and
- a transmitter that transmits, to the terminal, a DCI for sidelink scheduling,
- wherein the DCI includes a retransmission index, an NDI, and a feedback transmission resource indicator.
A system comprising:
- a base station that includes
- a receiver that receives a scheduling request from a terminal, and
- a transmitter that transmits, to the terminal, a DCI for sidelink scheduling;
- and
- a terminal that includes
- a transmitter that performs sidelink transmission using a resource assigned by the DCI for the sidelink scheduling,
- wherein the DCI includes a retransmission index, an NDI, and a feedback transmission resource indicator.
A system comprising:
- a first terminal that includes
- a receiver that receives sidelink control information and data in a sidelink, and
- a transmitter that transmits a feedback signal for the data on a sidelink feedback channel,
- wherein the transmitter determines a resource for transmitting the feedback signal based on a correspondence between a resource for the data and a resource for feedback;
- and
- a second terminal that includes
- a transmitter that transmits the sidelink control information and the data in the sidelink, and
- a receiver that receives the feedback signal for the data on the sidelink feedback channel,
- wherein the receiver receives the feedback signal on the resource determined based on the correspondence.
A feedback method executed by a terminal, the method comprising:
- a receiving step of receiving sidelink control information and data in a sidelink;
- and
- a transmitting step of transmitting a feedback signal corresponding to the data on a sidelink feedback channel;
- wherein, in the transmitting step, a resource for transmitting the feedback signal is determined based on a correspondence between a resource of the data and a resource for feedback.
A feedback method executed by a terminal, the method comprising:
- a transmitting step of transmitting sidelink control information and data in a sidelink;
- and
- a receiving step of receiving a feedback signal corresponding to the data on a sidelink feedback channel;
- wherein, in the receiving step, the feedback signal is received on a resource determined based a correspondence between a resource for the data and a resource for feedback.
Dependencies are inferred from the claim text.