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

• US 9,369,757 B2
• Filed: 03/06/2014
• Issued: 06/14/2016
• 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, Moon, Sangchul, Hong, Hotaek
• Primary Examiner(s): Decady, Albert
• Assistant Examiner(s): Ahmed, Enam
• Application Number:
  US14/199,767
• Publication Number:
  US 20140304568A1
• Time in Patent Office: 831 Days
• Field of Search: 714/776
• US Class Current: 1/1
• CPC Class Codes: H03M 13/09 Error detection only, e.g. using cyclic redundancy check [CRC] codes or single parity bit
• CPC Class Codes: H03M 13/251 with block coding
• CPC Class Codes: H03M 13/2796 Two or more interleaving operations are performed jointly, e.g. the first and second interleaving operations defined for 3GPP UMTS are performed jointly in a single interleaving operation
• CPC Class Codes: H04B 7/0413 MIMO systems
• CPC Class Codes: H04H 60/11 Arrangements for counter-measures when a portion of broadcast information is unavailable
• CPC Class Codes: H04L 1/0041 Arrangements at the transmitter end
• CPC Class Codes: H04L 1/0047 Decoding adapted to other signal detection operation in conjunction with sequence estimation or equalization H04L25/03286
• CPC Class Codes: H04L 27/2613 Structure of the reference signals
• CPC Class Codes: H04L 27/26134 Pilot insertion in the transmitter chain, e.g. pilot overlapping with data, insertion in time or frequency domain
• CPC Class Codes: H04L 27/26136 Pilot sequence conveying additional information
• CPC Class Codes: H04L 27/2647 Arrangements specific to the receiver only equalisation H04L27/01
• CPC Class Codes: H04L 5/0044 allocation of payload
• CPC Class Codes: H04L 5/0048 Allocation of pilot signals, i.e. of signals known to the receiver
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04N 19/66 involving data partitioning, i.e. separation of data into packets or partitions according to importance
• CPC Class Codes: H04N 21/2362 Generation or processing of Service Information [SI]
• CPC Class Codes: H04N 21/262 Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists scheduling strategies for dispatcher in multiprogramming arrangements G06F9/4881; arrangements for scheduling broadcast services or broadcast-related services H04H60/06; flow control in packet networks H04L47/10; establishing a time schedule or organising the servicing of application requests H04L67/62
• CPC Class Codes: H04N 21/42676 for modulating an analogue carrier signal to encode digital information or demodulating it to decode digital information, e.g. ADSL or cable modem
• CPC Class Codes: H04N 21/431 Generation of visual interfaces for content selection or interaction; Content or additional data rendering
• CPC Class Codes: H04N 21/4343 Extraction or processing of packetized elementary streams [PES]
• CPC Class Codes: H04N 21/4345 : Extraction or processing of SI, e.g. extracting service information from an MPEG stream
• CPC Class Codes: H04N 21/4382 : Demodulation or channel decoding, e.g. QPSK demodulation analog front ends or means for connecting modulators, demodulators or transceivers to a transmission line H04L27/0002
• CPC Class Codes: H04N 21/440227 : by decomposing into layers, e.g. base layer and one or more enhancement layers
• CPC Class Codes: H04N 21/64322 : IP
• CPC Class Codes: H04N 21/84 : Generation or processing of descriptive data, e.g. content descriptors systems specially adapted for using meta-information in broadcast systems H04H60/73

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 processing broadcast data in a transmitter, the method comprising:

Forward Error Correction (FEC) encoding Physical Layer Pipe (PLP) data of a plurality of PLPs;

first interleaving the FEC-encoded PLP data;

second interleaving the first-interleaved PLP data;

FEC encoding signaling data for signaling the PLP data; and

modulating a signal frame including the second-interleaved PLP data and the FEC-encoded signaling data,

wherein the signaling data includes identification information for identifying each PLP, and

wherein preamble symbols are located at the beginning of the signal frame in a time domain after modulating the signal frame.

2. The method of claim 1,

wherein the preamble symbols include a first preamble symbol and a second preamble symbol, and

wherein a postfix of the first symbol and a prefix of the second symbol are concatenated to each other in the time domain.

3. The method of claim 2, wherein the signaling data further includes information related to the MIMO encoding.

4. The method of claim 1, wherein the postfix of the first symbol and the prefix of the second symbol are frequency shifted with same frequency shift value and opposite signs.

5. The method of claim 1, wherein the preamble symbols include a P1 (Preamble 1) symbol and an additional P1 symbol and wherein the additional P1 symbol is located after the P1 symbol.

6. A transmitter for processing broadcast data, the transmitter comprising:

a first encoder for FEC encoding PLP data of a plurality of PLPs;

a first interleaver for first interleaving the FEC-encoded PLP data;

a second interleaver for second interleaving the first-interleaved PLP data;

a second encoder for FEC encoding signaling data for signaling the PLP data; and

a modulator for modulating a signal frame including the second-interleaved PLP data and the FEC-encoded signaling data,

wherein the signaling data includes identification information for identifying each PLP, and

wherein preamble symbols are located at the beginning of the signal frame in a time domain after modulating the signal frame.

7. The transmitter of claim 6,

wherein the preamble symbols include a first preamble symbol and a second preamble symbol, and

wherein a postfix of the first symbol and a prefix of the second symbol are concatenated to each other in the time domain.

8. The transmitter of claim 7, wherein the signaling data further includes information related to the MIMO encoding.

9. The transmitter of claim 6, wherein the postfix of the first symbol and the prefix of the second symbol are frequency shifted with same frequency shift value and opposite signs.

10. The transmitter of claim 6, wherein the preamble symbols include a P1 symbol and an additional P1 symbol and wherein the additional P1 symbol is located after the P1 symbol.