公开(公告)号：US20170324498A1

公开(公告)日：2017-11-09

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: H04J3/22

CPC classification number: H04B7/14 ,  H04B7/00 ,  H04B7/15528 ,  H04H20/02 ,  H04H20/42 ,  H04J11/004 ,  H04J15/00 ,  H04L27/3488

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.