Method and apparatus for transmitting sidelink HARQ feedback in NR V2X
AssigneeLG Electronics Inc.
InventorsSeungmin Lee, Hanbyul Seo
Life of this patent
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Abstract
Provided herein are a method of transmitting a Sidelink Hybrid Automatic Repeat Request (SL HARQ) feedback by a first device and a device supporting the same. The method may include the steps of receiving a Physical Sidelink Shared Channel (PSSCH) from a second device, and transmitting a SL HARQ feedback related to the PSSCH to the second device, wherein a resource in which the SL HARQ feedback is transmitted is determined based on an identifier (ID) of the first device.
Claims17
A method of transmitting a Sidelink Hybrid Automatic Repeat Request (SL HARQ) feedback by a first device, the method comprising:
- receiving, from a second device, a Physical Sidelink Control Channel (PSCCH);
- receiving, from the second device, a Physical Sidelink Shared Channel (PSSCH) related to the PSCCH;
- determining a feedback resource related to transmission of the SL HARQ feedback, among a plurality of feedback resources, based on (i) information regarding a resource related to the PSSCH, (ii) an identifier (ID) of the first device, and (iii) a source ID of the second device,
- wherein the ID of the first device is an ID provided to the first device within a group, for identifying the first device among a plurality of devices performing groupcast communication within the group;
- and
- transmitting, to the second device, the SL HARQ feedback related to the PSSCH based on the feedback resource.
A method for receiving a Sidelink Hybrid Automatic Repeat Request (SL HARQ) feedback by a second device, the method comprising:
- transmitting, to a first device, a Physical Sidelink Control Channel (PSCCH);
- transmitting, to the first device, a Physical Sidelink Shared Channel (PSSCH) related to the PSCCH;
- determining a feedback resource related to reception of the SL HARQ feedback, among a plurality of feedback resources, based on (i) information regarding a resource related to the PSSCH, (ii) an identifier (ID) of the first device, and (iii) a source ID of the second device,
- wherein the ID of the first device is an ID provided to the first device within a group, for identifying the first device among a plurality of devices performing groupcast communication within the group;
- and
- receiving, from the first device, the SL HARQ feedback related to the PSSCH based on the feedback resource.
A first device configured to transmit a Sidelink Hybrid Automatic Repeat Request (SL HARQ) feedback, the first device comprising:
- one or more transceivers;
- one or more processors;
- and
- one or more computer memories operably connectable to the one or more processors and storing information that, when executed by the one or more processors, perform operations comprising
- receiving, through the one or more transceivers, from a second device, a Physical Sidelink Control Channel (PSCCH);
- receiving, through the one or more transceivers, from the second device, a Physical Sidelink Shared Channel (PSSCH) related to the PSCCH;
- determining a feedback resource related to transmission of the SL HARQ feedback, among a plurality of feedback resources, based on (i) information regarding a resource related to the PSSCH, (ii) an identifier (ID) of the first device, and (iii) a source ID of the second device,
- wherein the ID of the first device is an ID provided to the first device within a group, for identifying the first device among a plurality of devices performing groupcast communication within the group;
- and
- transmitting, through the one or more transceivers, to the second device, the SL HARQ feedback related to the PSSCH based on the feedback resource.
Dependencies are inferred from the claim text.