US 12,262,339 B2
Time of arrival based correction and verification for uplink channel synchronization
Fabian Wiacek, Warsaw (PL)
Assigned to Nokia Technologies Oy, Espoo (FI)
Appl. No. 17/630,305
Filed by Nokia Technologies Oy, Espoo (FI)
PCT Filed Sep. 6, 2019, PCT No. PCT/US2019/050097
§ 371(c)(1), (2) Date Jan. 26, 2022,
PCT Pub. No. WO2021/045786, PCT Pub. Date Mar. 11, 2021.
Prior Publication US 2022/0272649 A1, Aug. 25, 2022
Int. Cl. H04W 56/00 (2009.01); H04W 74/0833 (2024.01); H04W 76/20 (2018.01)
CPC H04W 56/0045 (2013.01) [H04W 56/001 (2013.01); H04W 74/0841 (2013.01); H04W 76/20 (2018.02)] 20 Claims
OG exemplary drawing
 
1. An apparatus comprising:
at least one processor; and
at least one memory including computer program code;
the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to:
determine a first time of arrival index value, wherein the first time of arrival index value is determined based on a one-way propagation delay between the apparatus and a network node, and wherein the first time of arrival index value is in a unit of a timing advance minimal step;
receive a first timing advance correction index value from the network node, wherein the first timing advance correction index value is received via a timing advance command from the network node, and wherein the first timing advance correction index value is in the unit of the timing advance minimal step;
determine a first time of arrival correction value corresponding to the first timing advance correction index value;
determine a first adjusted uplink timing value based at least on the first time of arrival correction value and the first timing advance correction index value; and
transmit, a first uplink data based at least on the first adjusted uplink timing value.