US RE50,611 E1
Signal transmission method for estimating phase noise in wireless communication system
Kilbom Lee, Seoul (KR); Jaehoon Chung, Seoul (KR); Kyuseok Kim, Seoul (KR); and Minki Ahn, Seoul (KR)
Assigned to LG Electronics Inc., Seoul (KR)
Filed by LG Electronics Inc., Seoul (KR)
Filed on Apr. 14, 2022, as Appl. No. 17/720,889.
Application 17/720,889 is a continuation of application No. 16/064,977, granted, now 10,587,446, issued on Mar. 10, 2020, previously published as PCT/KR2017/002570, filed on Mar. 9, 2017.
Application 17/720,889 is a reissue of application No. 16/738,515, filed on Jan. 9, 2020, granted, now 10,938,616, issued on Mar. 2, 2021.
Claims priority of provisional application 62/327,410, filed on Apr. 25, 2016.
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 27/26 (2006.01); H04B 7/01 (2006.01); H04B 7/06 (2006.01); H04J 13/00 (2011.01); H04L 5/00 (2006.01); H04L 25/02 (2006.01)
CPC H04L 5/0048 (2013.01) [H04B 7/01 (2013.01); H04B 7/0617 (2013.01); H04B 7/0626 (2013.01); H04J 13/0062 (2013.01); H04L 5/00 (2013.01); H04L 25/023 (2013.01); H04L 27/26 (2013.01); H04L 27/261 (2013.01); H04L 27/2675 (2013.01); H04L 5/0007 (2013.01)] 40 Claims
OG exemplary drawing
 
1. A method performed by a communication device operating in a wireless communication system, the method comprising:
generating a phase noise reference signal (PNRS);
generating a demodulation reference signal (DMRS);
mapping the PNRS to resources that are utilized for downlink data transmission such that:
(i) based on the DMRS being mapped in a frequency domain to a plurality of subcarriers: the PNRS is mapped to at least one subcarrier among the plurality of subcarriers to which the DMRS is mapped, and
(ii) based on the DMRS being mapped in a time domain to an orthogonal frequency division multiplexing (OFDM) symbol: the PNRS is mapped to a plurality of OFDM symbols that occur after the OFDM symbol to which the DMRS is mapped, wherein the plurality of OFDM symbols are spaced apart from each other by one or more OFDM symbol durations; and
transmitting, to a user equipment, (i) the PNRS mapped to the at least one subcarrier and to the plurality of OFDM symbols, and (ii) the DMRS mapped to the plurality of subcarriers and to the OFDM symbol.