US 11,757,689 B2
Apparatus and method for generating broadcast signal frame using layered division multiplexing
Jae-Young Lee, Daejeon (KR); Sung-Ik Park, Daejeon (KR); Sun-Hyoung Kwon, Daejeon (KR); Heung-Mook Kim, Daejeon (KR); and Nam-Ho Hur, Sejong (KR)
Assigned to ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Daejeon (KR)
Filed by ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Daejeon (KR)
Filed on May 17, 2022, as Appl. No. 17/746,799.
Application 17/746,799 is a continuation of application No. 16/880,545, filed on May 21, 2020, granted, now 11,368,955.
Application 16/880,545 is a continuation of application No. 16/243,831, filed on Jan. 9, 2019, granted, now 10,701,689, issued on Jun. 30, 2020.
Application 16/243,831 is a continuation of application No. 15/504,298, granted, now 10,225,835, issued on Mar. 5, 2019, previously published as PCT/KR2015/008846, filed on Aug. 25, 2015.
Claims priority of application No. 10-2014-0111090 (KR), filed on Aug. 25, 2014; and application No. 10-2015-0118763 (KR), filed on Aug. 24, 2015.
Prior Publication US 2022/0279513 A1, Sep. 1, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04J 3/00 (2006.01); H04L 27/26 (2006.01); H04J 11/00 (2006.01); H04L 1/00 (2006.01); H04L 27/34 (2006.01); H04W 52/34 (2009.01); H04L 65/611 (2022.01); H04L 5/22 (2006.01); H04W 52/04 (2009.01); H04W 72/0446 (2023.01)
CPC H04L 27/2613 (2013.01) [H04J 11/004 (2013.01); H04L 1/0063 (2013.01); H04L 1/0071 (2013.01); H04L 5/22 (2013.01); H04L 27/26 (2013.01); H04L 27/2602 (2013.01); H04L 27/34 (2013.01); H04L 65/611 (2022.05); H04W 52/04 (2013.01); H04W 52/346 (2013.01); H04W 72/0446 (2013.01); H04L 27/26025 (2021.01); H04L 27/26136 (2021.01); Y02D 30/70 (2020.08)] 4 Claims
OG exemplary drawing
 
1. A method of generating a broadcast signal frame, comprising:
generating a power-reduced enhanced layer signal by reducing power of an enhanced layer signal;
generating a multiplexed signal by combining a core layer signal and the power-reduced enhanced layer signal;
generating a power-reduced multiplexed signal by reducing power of the multiplexed signal;
generating a time-interleaved signal by performing time interleaving that is applied to both a core layer corresponding to the core layer signal and an enhanced layer corresponding to the enhanced layer signal; and
generating a broadcast signal frame including a bootstrap and a preamble using the time-interleaved signal,
wherein the bootstrap is located at the beginning of the broadcast signal frame and includes a symbol representing a structure of the preamble,
wherein the symbol corresponds to a fixed-length bit string representing a combination of a Layer-1 (L1)-Basic Mode, a Fast Fourier Transform size, a guard interval length and a pilot pattern of the preamble, and
the power-reduced multiplexed signal is generated corresponding to a normalizing factor which is applied to both the core layer signal and the power-reduced enhanced layer signal.