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US 12,706,699 B2Granted
Physical sidelink feedback method and apparatus, and storage medium
AssigneeBeijing Xiaomi Mobile Software Co., Ltd.
InventorWensu Zhao
Life of this patent
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Abstract
Physical sidelink feedback methods and apparatuses, and storage media are provided. The physical sidelink feedback method includes: receiving one or more code block groups CBGs sent by a second user equipment to a first user equipment, and sending HARQ feedback for the one or more CBGs to the second user equipment.
Claims14
A physical sidelink feedback method, performed by a first user equipment, comprising:
- receiving one or more code block groups (CBGs) sent by a second user equipment to the first user equipment, and determining a physical sidelink feedback channel (PSFCH) resource mapped by a physical sidelink shared channel (PSSCH) transmission resource, wherein the PSFCH resource is used to send hybrid automatic repeat request (HARQ) feedback for the one or more CBGs;
- sending, based on the PSFCH resource, the HARQ feedback for the one or more CBGs to the second user equipment;
- wherein the PSFCH resource comprises:
- different PSFCH resources used for the HARQ feedback for the one or more CBGs, wherein the PSFCH resource mapped by the PSSCH transmission resource is determined based on a number of one or more CBGs and a time domain index and a subchannel index where a PSSCH is located, and the PSFCH resource mapped by the PSSCH transmission resource comprises physical resource blocks (PRBs) consistent with the number of the CBGs;
- or, a same PSFCH resource multiplexed for the HARQ feedback for the one or more CBGs.
2 more elements
A physical sidelink feedback method, performed by a second user equipment, comprising:
- sending one or more code block groups (CBGs) to a first user equipment;
- and
- receiving, based on a physical sidelink feedback channel (PSFCH) resource mapped by a physical sidelink shared channel (PSSCH) transmission resource, hybrid automatic repeat request (HARQ) feedback sent by the first user equipment for the one or more CBGs;
- and
- wherein the PSFCH resource comprises:
- different PSFCH resources used for the HARQ feedback for the one or more CBGs, wherein the PSFCH resource mapped by the PSSCH transmission resource is determined based on a number of one or more CBGs and a time domain index and a subchannel index where a PSSCH is located, and the PSFCH resource mapped by the PSSCH transmission resource comprises physical resource blocks (PRBs) consistent with the number of the CBGs;
- or, a same PSFCH resource multiplexed for the HARQ feedback for the one or more CBGs.
4 more elements
A physical sidelink feedback apparatus, comprising:
- a processor;
- and
- a memory, configured to store processor-executable instructions;
- wherein the processor is configured to receive one or more code block groups (CBGs) sent by a second user equipment to a first user equipment, and determine a physical sidelink feedback channel (PSFCH) resource mapped by a physical sidelink shared channel (PSSCH) transmission resource, wherein the PSFCH resource is used to send hybrid automatic repeat request (HARQ) feedback for the one or more CBGs;
- send, based on the PSFCH resource, the (HARQ feedback for the one or more CBGs to the second user equipment;
- wherein the PSFCH resource comprises:
- different PSFCH resources used for the HARQ feedback for the one or more CBGs, wherein the PSFCH resource mapped by the PSSCH transmission resource is determined based on a number of one or more CBGs and a time domain index and a subchannel index where a PSSCH is located, and the PSFCH resource mapped by the PSSCH transmission resource comprises physical resource blocks (PRBs) consistent with the number of the CBGs;
- or, a same PSFCH resource multiplexed for the HARQ feedback for the one or more CBGs.
5 more elements
Dependencies are inferred from the claim text.