US 10,892,924 B2
Modulation and demodulation method in layer-division multiplexing system, and receiver thereof
Jae-Hwui Bae, Daejeon (KR); Sun-Hyoung Kwon, Daejeon (KR); Young-Su Kim, Sejong-si (KR); Dong-Joon Choi, Daejeon (KR); and Nam-Ho Hur, Sejong-si (KR)
Assigned to Electronics and Telecommunications Research Institute, Daejeon (KR)
Filed by Electronics and Telecommunications Research Institute, Daejeon (KR)
Filed on Feb. 21, 2020, as Appl. No. 16/797,845.
Claims priority of application No. 10-2019-0071286 (KR), filed on Jun. 17, 2019.
Prior Publication US 2020/0396110 A1, Dec. 17, 2020
Int. Cl. H04W 72/04 (2009.01); H04L 27/00 (2006.01); H04J 99/00 (2009.01)
CPC H04L 27/0008 (2013.01) [H04J 15/00 (2013.01); H04W 72/042 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A demodulation method of a Layer-Division Multiplexing (LDM) system, comprising:
receiving an LDM modulation signal,
restoring a first-layer signal from the LDM modulation signal and remodulating the first-layer signal;
restoring and remodulating a second-layer signal by performing cancellation of an amplitude component of the first-layer signal from the LDM modulation signal using signaling information, independently of restoration and remodulation of the first-layer signal; and
restoring a third-layer signal using the first-layer signal, the second-layer signal, and the LDM modulation signal.