US 12,192,937 B2
Timing advance for non-terrestrial network communication
Nagi Mahalingam, San Diego, CA (US); Anantharaman Balasubramanian, San Diego, CA (US); Mihaela Beluri, Jericho, NY (US); Ravikumar V. Pragada, Warrington, PA (US); Mahmoud Taherzadeh Boroujeni, San Diego, CA (US); Shahrokh Nayeb Nazar, San Diego, CA (US); Seyed Mohsen Hosseinian, San Diego, CA (US); and Frank La Sita, Setauket, NY (US)
Assigned to INTERDIGITAL PATENT HOLDINGS, INC., Wilmington, DE (US)
Appl. No. 17/044,586
Filed by INTERDIGITAL PATENT HOLDINGS, INC., Wilmington, DE (US)
PCT Filed Apr. 3, 2019, PCT No. PCT/US2019/025628
§ 371(c)(1), (2) Date Oct. 1, 2020,
PCT Pub. No. WO2019/195457, PCT Pub. Date Oct. 10, 2019.
Claims priority of provisional application 62/652,698, filed on Apr. 4, 2018.
Claims priority of provisional application 62/652,182, filed on Apr. 3, 2018.
Prior Publication US 2021/0029658 A1, Jan. 28, 2021
Int. Cl. H04W 56/00 (2009.01); H04B 7/185 (2006.01); H04W 74/08 (2024.01); H04W 74/0833 (2024.01)
CPC H04W 56/0045 (2013.01) [H04B 7/18513 (2013.01); H04W 56/0005 (2013.01); H04W 74/0833 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method performed by a wireless transmit and receive unit (WTRU), the method comprising:
receiving, from a spaceborne communications satellite, system information that includes a position of, and trajectory parameters, including velocity, about, the spaceborne communications satellite;
determining a position of the WTRU using a global navigation satellite system (GNSS);
estimating a propagation delay based on the determined WTRU position and the position of, and the trajectory parameters about, the spaceborne communications satellite;
determining a timing advance (TA) based on the estimated propagation delay; and
transmitting a signal using the determined TA.