US 12,250,642 B2
Method and device for determining sidelink transmit power in NR V2X
Seungmin Lee, Seoul (KR); Hanbyul Seo, Seoul (KR); and Daesung Hwang, Seoul (KR)
Assigned to LG Electronics Inc., Seoul (KR)
Appl. No. 17/602,502
Filed by LG Electronics Inc., Seoul (KR)
PCT Filed Apr. 9, 2020, PCT No. PCT/KR2020/004851
§ 371(c)(1), (2) Date Oct. 8, 2021,
PCT Pub. No. WO2020/209642, PCT Pub. Date Oct. 15, 2020.
Claims priority of provisional application 62/831,712, filed on Apr. 9, 2019.
Claims priority of application No. 10-2019-0130222 (KR), filed on Oct. 18, 2019.
Prior Publication US 2022/0217649 A1, Jul. 7, 2022
Int. Cl. H04W 52/24 (2009.01); H04W 4/40 (2018.01); H04W 52/36 (2009.01)
CPC H04W 52/242 (2013.01) [H04W 4/40 (2018.02); H04W 52/36 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
obtaining information related to a first downlink (DL) P0 value for a physical sidelink control channel (PSCCH) or a physical sidelink shared channel (PSSCH) for a DL pathloss and a first DL alpha value for the PSCCH or the PSSCH for the DL pathloss;
obtaining information related to a sidelink (SL) P0 value for the PSCCH or the PSSCH for a SL pathloss and a SL alpha value for the PSCCH or the PSSCH for the SL pathloss;
obtaining information related to a second DL P0 value for a physical sidelink feedback channel (PSFCH) for the DL pathloss and a second DL alpha value for the PSFCH for the DL pathloss;
determining a first transmit power value based on a minimum value between a DL value, which is related to the DL pathloss, the first DL P0 value for the PSCCH or the PSSCH, and the first DL alpha value for the PSCCH or the PSSCH and a SL value, which is related to the SL pathloss, the SL P0 value for the PSCCH or the PSSCH, and the SL alpha value for the PSCCH or the PSSCH;
determining a second transmit power value based on the DL pathloss, the second DL P0 value for the PSFCH, and the second DL alpha value for the PSFCH;
transmitting the PSCCH or the PSSCH based on the first transmit power value; and
transmitting the PSFCH based on the second transmit power value.