Method and device for transmitting DMRS for PSSCH in NR V2X
AssigneeLG Electronics Inc.
InventorsDaesung Hwang, Seungmin Lee, Hanbyul Seo
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Abstract
Proposed is a method for a first device for communicating wirelessly. The method can comprise a step of, from a second device, transmitting sidelink control information (SCI) comprising information relating to a demodulation reference signal (DMRS) pattern by means of a physical sidelink control channel (PSCCH) to the second device, mapping the DMRS on resources relating to a physical sidelink shared channel (PSSCH) on the basis of the information relating to the DMRS pattern and the length of a symbol duration of the PSSCH relating to the PSCCH, and transmitting the DMRS to the second device by means of the PSSCH.
Claims10
A method for performing wireless communication by a first device, the method comprising:
- obtaining first information regarding a number of physical resource blocks (PRBs) for a physical sidelink control channel (PSCCH) and second information regarding a size of a subchannel for sidelink communication;
- mapping a physical sidelink shared channel (PSSCH) demodulation reference signal (DMRS) to a PSSCH DMRS symbol in a slot related to a PSSCH,
- wherein a position of the PSSCH DMRS symbol does not overlap a position of a PSCCH symbol in the slot related to the PSSCH, based on the number of the PRBs for the PSCCH being less than the size of the subchannel;
- and
- transmitting the PSSCH DMRS to a second device.
A first device for performing wireless communication, the first device comprising:
- one or more memories storing instructions;
- one or more transceivers;
- and
- one or more processors connected to the one or more memories and the one or more transceivers,
- wherein the one or more processors execute the instructions to:
- obtain first information regarding a number of physical resource blocks (PRBs) for a physical sidelink control channel (PSCCH) and second information regarding a size of a subchannel for sidelink communication;
- map a physical sidelink shared channel (PSSCH) demodulation reference signal (DMRS) to a PSSCH DMRS symbol in a slot related to a PSSCH,
- wherein a position of the PSSCH DMRS symbol does not overlap a position of a PSCCH symbol in the slot related to the PSSCH, based on the number of the PRBs for the PSCCH being less than the size of the subchannel;
- and
- transmit the PSSCH DMRS to a second device.
A device configured to control a first user equipment (UE), the device comprising:
- one or more processors;
- and
- one or more memories being operably connectable to the one or more processors and storing instructions,
- wherein the one or more processors execute the instructions to:
- obtain first information regarding a number of physical resource blocks (PRBs) for a physical sidelink control channel (PSCCH) and second information regarding a size of a subchannel for sidelink communication;
- map a physical sidelink shared channel (PSSCH) demodulation reference signal (DMRS) to a PSSCH DMRS symbol in a slot related to a PSSCH,
- wherein a position of the PSSCH DMRS symbol does not overlap a position of a PSCCH symbol in the slot related to the PSSCH, based on the number of the PRBs for the PSCCH being less than the size of the subchannel;
- and
- transmit the PSSCH DMRS to a second UE.
Dependencies are inferred from the claim text.