Method and device for adjusting transmission parameter by sidelink terminal in nr v2x

Abstract

Provided are a method for performing sidelink transmission by a transmission terminal in a wireless communication system, and a device supporting same. The method can comprise the steps of: adjusting a parameter associated with sidelink transmission on the basis of the height of an antenna of a transmission terminal; and performing sidelink transmission for a reception terminal on the basis of the adjusted parameter.

1 - 15 . (cancel) 
     
     
         16 . A method for performing, by a first device, sidelink transmission in a wireless communication system, the method comprising:
 obtaining information on a resource pool,   wherein the resource pool includes a sidelink resource for physical sidelink control channel (PSCCH) transmission and a sidelink resource for physical sidelink shared channel (PSSCH) transmission;   determining a transmission parameter related to a height of the first device from a reference surface or from a reference object; and   performing sidelink transmission for a second device based on the transmission parameter.   
     
     
         17 . The method of  claim 16 , further comprising:
 obtaining information regarding the transmission parameter related to the height of the first device from the reference surface.   
     
     
         18 . The method of  claim 16 , wherein the height is a height of an antenna of the first device from the reference surface, and
 wherein the reference surface is a ground surface.   
     
     
         19 . The method of  claim 16 , wherein the height is determined based on a physical antenna of the first device and a UE type of the first device and based on the reference object, and
 wherein the reference object is a highest object within a zone based on the first device.   
     
     
         20 . The method of  claim 16 , wherein the transmission parameter is a transmission power for sidelink transmission. 
     
     
         21 . The method of  claim 20 , wherein, based on the height of the first device being higher than a pre-configured first height, the transmission power for sidelink transmission is determined to a smaller value than before. 
     
     
         22 . The method of  claim 16 , wherein the transmission parameter is a Modulation and Coding Scheme (MCS) for sidelink transmission. 
     
     
         23 . The method of  claim 22 , wherein, based on the height of the first device being higher than a pre-configured second height, the MCS is determined to a larger value than before. 
     
     
         24 . The method of  claim 16 , wherein the transmission parameter is a threshold value being used in a sensing operation for sidelink resource selection, and
 wherein, based on a Reference Signal Received Power (RSRP) of a Physical Sidelink Shared Channel (PSSCH), the RSRP being measured by the first device, exceeding the threshold value, a resource related to the PSSCH is excluded from a resource selection candidate group.   
     
     
         25 . The method of  claim 24 , wherein, based on the height of the first device being lower than a pre-configured third height, the threshold value is determined to a smaller value than before based on the height of the first device. 
     
     
         26 . The method of  claim 16 , wherein the transmission parameter is a range for a horizontal angle or vertical angle of an antenna of the first device for sidelink transmission. 
     
     
         27 . The method of  claim 26 , wherein, based on the height of the first device being lower than a pre-configured fourth height, the horizontal angle or vertical angle of the antenna is determined to a narrower range than before. 
     
     
         28 . The method of  claim 16 , wherein the first device performs communication with at least one of a mobile UE, a network, or an autonomous vehicle, or an unmanned aerial vehicle (UAV) other than the first device. 
     
     
         29 . The method of  claim 16 , wherein the transmission parameter is a beam width for beamforming of the first device. 
     
     
         30 . The method of  claim 29 , wherein, based on the height of the first device being lower than a pre-configured fifth height, the beam width for the beamforming is determined to a shorter width than before. 
     
     
         31 . The method of  claim 16 , wherein the transmission parameter includes difference of the height between the first device and a UE other than the first device, and
 wherein determining the transmission parameter related to the difference of the height between the first device and the UE other than the first device.   
     
     
         32 . The method of  claim 16 , wherein the first device is at least one first set of UE within a first range of a height from the reference surface, and
 wherein determining the transmission parameter related to the height of the at least one first set of UE within the first range of the height.   
     
     
         33 . The method of  claim 16 , wherein the first device is at least one second set of UE within a zone having height from the reference surface, and
 wherein determining the transmission parameter related to the height of the at least one second set of UE within the zone.   
     
     
         34 . An apparatus configured to control a first device, the apparatus comprising:
 one or more processors; and   one or more memories operably connectable to the one or more processors and storing instructions, wherein the one or more processors execute the instructions to:   obtain information on a resource pool,   wherein the resource pool includes a sidelink resource for physical sidelink control channel (PSCCH) transmission and a sidelink resource for physical sidelink shared channel (PSSCH) transmission,   determine the transmission parameter related to a height of the first device from a reference surface or from a reference object, and   perform the sidelink transmission for a second device based on the transmission parameter.   
     
     
         35 . 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 information on a resource pool,   wherein the resource pool includes a sidelink resource for physical sidelink control channel (PSCCH) transmission and a sidelink resource for physical sidelink shared channel (PSSCH) transmission,   determine the transmission parameter related to a height of the first device from a reference surface or from a reference object, and   perform the sidelink transmission for a second device based on the transmission parameter.