US 12,302,272 B2
Methods and apparatus of timing handling for integration of terrestrial network and non-terrestrial network communications
Dan Li, Shanghai (CN); Shiang-Jiun Lin, Hsinchu (TW); I-Kang Fu, Hsinchu (TW); and Xuancheng Zhu, Shanghai (CN)
Assigned to MediaTek Singapore Pte. Ltd., Singapore (SG)
Appl. No. 17/794,348
Filed by MediaTek Singapore Pte. Ltd., Singapore (SG)
PCT Filed Jan. 22, 2021, PCT No. PCT/CN2021/073287
§ 371(c)(1), (2) Date Jul. 21, 2022,
PCT Pub. No. WO2021/147998, PCT Pub. Date Jul. 29, 2021.
Claims priority of application No. PCT/CN2020/073953 (WO), filed on Jan. 23, 2020.
Prior Publication US 2023/0049998 A1, Feb. 16, 2023
Int. Cl. H04W 56/00 (2009.01); H04W 72/1268 (2023.01); H04W 84/06 (2009.01); H04W 88/06 (2009.01)
CPC H04W 56/0045 (2013.01) [H04W 72/1268 (2013.01); H04W 84/06 (2013.01); H04W 88/06 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method, comprising:
establishing communications with a terrestrial network (TN) node in a TN by a user equipment (UE);
establishing communications with a non-terrestrial network (NTN) node in an NTN by the UE;
compensating for a first propagation delay in the communications between the UE and the NTN node by the UE; and
advancing a preamble transmission by two times a second propagation delay between the UE and the NTN node,
wherein the UE is able to obtain the second propagation delay,
wherein the compensating for the first propagation delay is based on at least one of:
the second propagation delay obtained by the UE; and
a maximum propagation delay,
wherein the maximum propagation delay is a first maximum propagation delay of a cell or beam in which the UE is located or a second maximum propagation delay of all cells in coverage of a base station in the NTN.