US 12,133,197 B2
Method and apparatus for sidelink terminal to transmit signal in wireless communication system
Seungmin Lee, Seoul (KR); Hyukjin Chae, Seoul (KR); and Hanbyul Seo, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/422,086
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Jan. 13, 2020, PCT No. PCT/KR2020/000598
§ 371(c)(1), (2) Date Jul. 9, 2021,
PCT Pub. No. WO2020/145785, PCT Pub. Date Jul. 16, 2020.
Claims priority of application No. 10-2019-0004229 (KR), filed on Jan. 11, 2019; application No. 10-2019-0004230 (KR), filed on Jan. 11, 2019; and application No. 10-2019-0004236 (KR), filed on Jan. 11, 2019.
Prior Publication US 2022/0104178 A1, Mar. 31, 2022
Int. Cl. H04W 72/02 (2009.01); H04W 64/00 (2009.01); H04W 76/14 (2018.01); H04W 4/40 (2018.01); H04W 92/18 (2009.01)
CPC H04W 72/02 (2013.01) [H04W 64/006 (2013.01); H04W 76/14 (2018.02); H04W 4/40 (2018.02); H04W 92/18 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method of transmitting a signal by a first user equipment (UE) in a wireless communication system, the method comprising:
determining, by the first UE, at least one of transmission parameters, a channel state information reference signal (CSI-RS) transmission configuration, or a demodulation reference signal (DMRS) configuration; and
transmitting, by the first UE, the signal to a second UE based on the at least one of the transmission parameters, the CSI-RS transmission configuration, or the DMRS configuration,
wherein based on establishment of a unicast connection with the second UE, the first UE determines a first value corresponding to one of a relative speed/acceleration, a relative distance/distance change, or a relative position/position change with the second UE based on information included in a message from the second UE and sensor information, and
wherein the first UE changes the at least one of the transmission parameters, the CSI-RS transmission configuration, or the DMRS configuration based on a change of the first value,
wherein the CSI-RS transmission configuration includes at least one of a CSI-RS transmission period or a CSI-RS transmission pattern,
wherein the DMRS configuration includes at least one of a number DMRSs per slot or a DMRS pattern, and
wherein the transmission parameters include at least one of transmission power, a transmission resource size, or a number of retransmissions.