US 11,737,029 B2
Downlink pathloss determination for transmit power control for sidelink communications
Jung Ho Ryu, Fort Lee, NJ (US); Kapil Gulati, Hillsborough, NJ (US); Tianyang Bai, Sommerville, NJ (US); Junyi Li, Chester, NJ (US); Sony Akkarakaran, Poway, CA (US); Tao Luo, San Diego, CA (US); and Vasanthan Raghavan, West Windsor Township, NJ (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Aug. 5, 2020, as Appl. No. 16/986,130.
Claims priority of provisional application 62/887,261, filed on Aug. 15, 2019.
Claims priority of provisional application 62/883,439, filed on Aug. 6, 2019.
Prior Publication US 2021/0045062 A1, Feb. 11, 2021
Int. Cl. H04W 52/10 (2009.01); H04W 56/00 (2009.01); H04W 24/10 (2009.01); H04W 52/24 (2009.01); H04L 25/02 (2006.01); H04L 5/00 (2006.01); H04B 17/318 (2015.01); H04W 92/18 (2009.01)
CPC H04W 52/10 (2013.01) [H04B 17/318 (2015.01); H04L 5/0051 (2013.01); H04L 25/0226 (2013.01); H04W 24/10 (2013.01); H04W 52/241 (2013.01); H04W 52/242 (2013.01); H04W 56/001 (2013.01); H04W 92/18 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A method of communications at a user equipment (UE), comprising:
receiving, by the UE and in a direction of a sidelink transmission beam, a plurality of synchronization reference signals from a base station, wherein the sidelink transmission beam is configured at the UE for transmitting sidelink communications to a second UE;
measuring a respective Reference Signal Received Power (RSRP) value of each of the plurality of synchronization reference signals;
determining a highest RSRP value from each of the respective RSRP values;
calculating a downlink pathloss associated with a sidelink open loop power control based on the highest RSRP value; and
determining a transmit power of communication with the second UE on a sidelink based on a minimum between a sum of a desired received signal power at the second UE and the downlink pathloss and a sum of the desired received signal power at the second UE and a pathloss between the UE and the second UE.