US 12,003,795 B2
Apparatus for transmitting broadcast signals, apparatus for receiving broadcast signals, method for transmitting broadcast signals and method for receiving broadcast signals
Minsung Kwak, Seoul (KR); Jangwon Lee, Seoul (KR); Kyoungsoo Moon, Seoul (KR); Woosuk Ko, Seoul (KR); and Sungryong Hong, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Filed by LG ELECTRONICS INC., Seoul (KR)
Filed on Nov. 13, 2020, as Appl. No. 17/097,693.
Application 17/097,693 is a continuation of application No. 15/029,100, granted, now 10,869,070, previously published as PCT/KR2015/011757, filed on Nov. 4, 2015.
Claims priority of provisional application 62/075,235, filed on Nov. 4, 2014.
Prior Publication US 2021/0067822 A1, Mar. 4, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 21/236 (2011.01); H04N 21/235 (2011.01); H04N 21/2362 (2011.01); H04N 21/434 (2011.01); H04N 21/435 (2011.01); H04N 21/61 (2011.01); H04N 21/643 (2011.01); H04L 67/51 (2022.01)
CPC H04N 21/23614 (2013.01) [H04N 21/235 (2013.01); H04N 21/2362 (2013.01); H04N 21/4345 (2013.01); H04N 21/4348 (2013.01); H04N 21/435 (2013.01); H04N 21/6175 (2013.01); H04N 21/643 (2013.01); H04L 67/51 (2022.05)] 12 Claims
OG exemplary drawing
 
1. A method for transmitting a broadcast signal, the method comprising:
generating first service data and second service data;
generating service signaling data including a User Service Description (USD), wherein the USD includes a first reference to the first service data,
wherein the USD further includes a second reference to second information for the second service data,
wherein, based on the second information, Real-Time Object Delivery over Unidirectional Transport (ROUTE) information on a ROUTE session and Layered Coding Transport (LCT) information on LCT channels of the ROUTE session are provided, and
wherein the LCT information includes a Transport Session Identifier (TSI) information for identifying a LCT channel;
Forward Error Correction (FEC) encoding the first service data, the second service data, and the service signaling data;
time interleaving FEC blocks of the first service data, the second service data, and the service signaling data based on position information of the FEC blocks and virtual cells;
generating a signal frame including the time interleaved FEC blocks;
frequency interleaving data in the signal frame based on an interleaving sequence that is generated by checking whether an address of a sequence, the sequence is generated based on an offset and a bit sequence, is within a range of a symbol; and
transmitting the broadcast signal including the signal frame.