公开(公告)号：US10404351B2

公开(公告)日：2019-09-03

申请号：US15447579

申请日：2017-03-02

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jae-Hyun Seo ,  Young-Min Kim ,  Heung-Mook Kim

IPC: H04B7/14 ,  H04B7/155 ,  H04J11/00 ,  H04L27/34 ,  H04H20/02 ,  H04H20/42 ,  H04B7/00 ,  H04J99/00

Abstract: Disclosed herein are a Layered Division Multiplexing (LDM)-based broadcast relay apparatus and method. The LDM-based broadcast relay apparatus includes a first layer symbol generation unit for outputting a first layer broadcast signal based on a received Layered Division Multiplexed (LDM) broadcast signal, a data buffer unit for storing the received LDM broadcast signal for a delay time before the first layer broadcast signal is output, and a second layer symbol generation unit for outputting a second layer broadcast signal by eliminating the first layer broadcast signal from the stored broadcast signal.