US 12,452,008 B2
Method and apparatus transmitting signal for high speed mobile terminal in wireless communication system
Hyoungju Ji, Suwon-si (KR); Jinhyun Park, Suwon-si (KR); Hoondong Noh, Suwon-si (KR); and Youngrok Jang, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Appl. No. 17/917,406
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
PCT Filed May 14, 2021, PCT No. PCT/KR2021/006071
§ 371(c)(1), (2) Date Oct. 6, 2022,
PCT Pub. No. WO2021/230706, PCT Pub. Date Nov. 18, 2021.
Claims priority of application No. 10-2020-0058537 (KR), filed on May 15, 2020; and application No. 10-2021-0037401 (KR), filed on Mar. 23, 2021.
Prior Publication US 2023/0344569 A1, Oct. 26, 2023
Int. Cl. H04L 5/00 (2006.01)
CPC H04L 5/0035 (2013.01) [H04L 5/0048 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method performed by a base station in a wireless communication system, the method comprising:
transmitting, to a user equipment (UE), multiple first tracking reference signals (TRSs) through multiple transmission and reception points (TRPs);
receiving, from the UE, multiple sounding reference signals (SRSs) through the multiple TRPs;
measuring a second frequency shift for each of the multiple SRSs corresponding to each of the multiple TRPs;
based on the second frequency shift for each of the multiple SRSs, determining a carrier frequency for each of multiple second TRSs; and
transmitting, to the UE, the multiple second TRSs on the determined carrier frequency through the multiple TRPs; and
transmitting, to the UE, multiple downlink signals based on the second frequency shift,
wherein the multiple downlink signals are received by the UE on a single frequency and the single frequency is associated with a channel equalization at the UE based on a first frequency shift and a third frequency shift for each of the multiple second TRSs.