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US 12,598,028 B2Granted
Communication apparatus and communication method
AssigneeNtt Docomo, Inc.
InventorsShohei Yoshioka, Satoshi Nagata, Huan Wang
Life of this patent
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Abstract
A communication apparatus including a transmitting unit configured to transmit an SFCI (Sidelink Feedback Control Information) including a Hybrid Automatic Repeat Request (HARQ) response on a Physical Sidelink Feedback Channel (PSFCH), and a control unit configured to, in a case where the PSFCH overlaps another inter-terminal direct communication channel, perform control to transmit the SFCI by multiplexing the SFCI with the another inter-terminal direct communication channel.
Claims3
A communication apparatus comprising:
- a transmitter that transmits an inter-terminal direct communication feedback channel including a Hybrid Automatic Repeat Request (HARQ) response;
- a processor that:
- in a case where a transmission occasion of the inter-terminal direct communication feedback channel overlaps a transmission occasion of another inter-terminal direct communication feedback channel, determines, based on priority assigned to each of the inter-terminal direct communication feedback channel and the another inter-terminal direct communication feedback channel, whether to transmit each of the inter-terminal direct communication feedback channel and the another inter-terminal direct communication feedback channel;
- and
- after the determination based on the priority, further performs control whether to transmit each of the inter-terminal direct communication feedback channel and the another inter-terminal direct communication feedback channel based on transmission power based on downlink control information (DCI),
- wherein the transmitter transmits, based on the control performed by the processor, the inter-terminal direct communication feedback channel;
- the transmitter transmits another inter-terminal direct communication channel, the another inter-terminal direct communication channel being Physical Sidelink Shared Channel (PSSCH);
- and
- the processor controls to transmit the inter-terminal direct communication feedback channel and the another inter-terminal direct communication feedback channel by performing time division multiplexing.
6 more elements
A communication method of a communication apparatus, the communication method comprising:
- transmitting an inter-terminal direct communication feedback channel including a Hybrid Automatic Repeat Request (HARQ) response;
- in a case where a transmission occasion of an inter-terminal direct communication feedback channel overlaps a transmission occasion of another inter-terminal direct communication feedback channel, determining, based on priority assigned to each of the inter-terminal direct communication feedback channel and the another inter-terminal direct communication feedback channel, whether to transmit each of the inter-terminal direct communication feedback channel and the another inter-terminal direct communication feedback channel;
- after the determination based on the priority, performing control to whether to transmit each of the inter-terminal direct communication feedback channel and the another inter-terminal direct communication feedback channel based on transmission power based on downlink control information (DCI);
- transmitting the inter-terminal direct communication feedback channel based on the control;
- transmitting another inter-terminal direct communication channel, the another inter-terminal direct communication channel being Physical Sidelink Shared Channel (PSSCH);
- and
- controlling to transmit the inter-terminal direct communication feedback channel and the another inter-terminal direct communication feedback channel by performing time division multiplexing.
4 more elements
Dependencies are inferred from the claim text.