US 12,294,449 B2
Method for transmitting synchronization signal in wireless communication system, and apparatus therefor
Bonghoe Kim, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/784,018
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Dec. 12, 2019, PCT No. PCT/KR2019/017583
§ 371(c)(1), (2) Date Jun. 9, 2022,
PCT Pub. No. WO2021/117940, PCT Pub. Date Jun. 17, 2021.
Prior Publication US 2023/0023874 A1, Jan. 26, 2023
Int. Cl. H04J 11/00 (2006.01); H04L 27/26 (2006.01); H04W 56/00 (2009.01)
CPC H04J 11/0069 (2013.01) [H04L 27/26025 (2021.01); H04L 27/2605 (2013.01); H04W 56/001 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method comprising:
generating, by a base station (BS), a sequence which is related to a synchronization signal (SS) including a primary synchronization signal (PSS) and a secondary synchronization signal (SSS);
mapping, by the BS, the sequence to a physical resource which is based on a Resource Element (RE); and
transmitting, by the BS to a user equipment (UE), the SS, based on the mapping,
wherein an acquisition of a time and frequency synchronization by the UE is performed based on the SS,
wherein a physical cell ID is determined based on the SS,
wherein the SS is transmitted in one or more symbols,
wherein the one or more symbols are based on consecutive Orthogonal Frequency Division Multiplexing (OFDM) symbols,
wherein a portion of the SS is transmitted in a time resource region based on a cyclic prefix (CP) of the SS, and the portion of the SS includes at least one of the PSS and the SSS,
wherein a length of the CP is determined based on all of (i) a subcarrier spacing applied to signal transmission in a wireless communication system, (ii) a total number of orthogonal frequency division multiplexing (OFDM) symbols within a time interval based on the subcarrier spacing, and (iii) a number of OFDM symbols for the CP within the time interval,
wherein the CP is either a first CP with a first length or a second CP with a second length, a sum of a first coefficient applied to the first length and a second coefficient applied to the second length is constant and matches the total number of OFDM symbols within the time interval, and the second length is determined based on an adjustment of the first coefficient representing a number of OFDM symbols to which the first CP is applied.