Broadcasting signal transmission device, broadcasting signal reception device, and method for transmitting/receiving broadcasting signal using same

• US 9,456,234 B2
• Filed: 11/05/2014
• Issued: 09/27/2016
• Est. Priority Date: 02/23/2010
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Ko, Woosuk, Hong, Hotaek, Moon, Sangchul
• Primary Examiner(s): Saltarelli, Dominic D
• Application Number:
  US14/533,564
• Publication Number:
  US 20150058908A1
• Time in Patent Office: 692 Days
• Field of Search: 725/116
• US Class Current: 1/1
• CPC Class Codes: H04N 21/23424 involving splicing one content stream with another content stream, e.g. for inserting or substituting an advertisement
• CPC Class Codes: H04N 21/2365 Multiplexing of several video streams
• CPC Class Codes: H04N 21/2383 Channel coding or modulation of digital bit-stream, e.g. QPSK modulation arrangements for detecting or preventing errors in the information received by adapting the channel coding H04L1/0009; analogue front ends or means for connecting modulators, demodulators or transceivers to a transmission line H04L27/0002
• CPC Class Codes: H04N 21/2389 Multiplex stream processing, e.g. multiplex stream encrypting
• CPC Class Codes: H04N 21/6112 involving terrestrial transmission, e.g. DVB-T

Abstract

Disclosed is a broadcasting signal transmission device, a broadcasting signal reception device, and a method for transmitting/receiving a broadcasting signal using same. The method for receiving the broadcasting signal comprises the following steps: receiving the broadcasting signal, which includes a transmission frame, wherein the transmission frame includes a plurality of PLPs, which transmit components that constitute a broadcasting service, first signaling information and second signaling information, which include the signaling information of the plurality of PLPs, a first preamble signal, which has been signaled with a preamble format, and a second preamble signal, which has been signaled with pilot pattern information, wherein one of the plurality of PLPs is a base PLP, which includes a program number that corresponds to the broadcasting service and program map table information, which has been signaled with identifying information for each of the PLPs; demodulating the broadcasting signal based on the first and the second preamble signals; FEC decoding the demodulated broadcasting signal; and identifying a PLP group that includes the plurality of PLP from the FEC decoded broadcasting signal based on the first and the second signaling information, decoding at least one PLP of the identified PLP group, and providing the broadcasting service.

Claims

1. A method of transmitting service data

proceeding with input data to output transmission unit data;

encoding the transmission unit data;

interleaving the encoded transmission unit data;

mapping the interleaved transmission unit data;

building a signal frame including the mapped transmission unit data;

modulating the signal frame by OFDM (Orthogonal Frequency Division Multiplex) scheme;

inserting a preamble at a start of the signal frame in a time domain, and

transmitting a broadcast signal carrying the modulated signal frame and the preamble,

wherein the preamble includes a first preamble symbol and a second preamble symbol, and a sequence of the first preamble symbol are different from a sequence of the second preamble symbol in a time domain,

wherein the first preamble symbol includes a suffix in the time domain which is obtained from a part of the first preamble symbol based on a frequency shifting method, and

wherein the second preamble symbol includes a prefix in the time domain which is obtained from a part of the second preamble symbol based on a frequency shifting method.

2. The method of claim 1, the method further comprising:

MIMO encoding the mapped transmission unit data, wherein the signaling data includes information on the MIMO encoding, which is applied to associated transmission unit data.

3. The method of claim 1, the method further includes:

generating the preamble having a guard interval,

wherein the guard interval is generated by combining a cyclic prefix of an OFDM symbol of the preamble and a specific sequence.

4. The method of claim 3, wherein the specific sequence is a Binary chirp-like sequence.