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

• US 9,654,820 B2
• Filed: 03/09/2015
• Issued: 05/16/2017
• Est. Priority Date: 02/23/2010
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Hong, Hotaek, Ko, Woosuk, Moon, Sangchul
• Primary Examiner(s): Saltarelli, Dominic D
• Application Number:
  US14/642,219
• Publication Number:
  US 20150181281A1
• Time in Patent Office: 799 Days
• Field of Search: 725146, 725151
• 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 27/2647 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 for transmitting broadcast signals, the method comprising:

encoding PLP (Physical Layer Pipe) data carried in each of a plurality of PLPs, each PLP carries at least one broadcast service or at least one broadcast service component;

building a signal frame by mapping the encoded PLP data into data symbols of the signal frame,

wherein the data symbols carry the plurality of PLPs;

modulating data in the built signal frame by an OFDM (Orthogonal Frequency Division Multiplex) scheme;

inserting a first symbol and a second symbol in front of the modulated data; and

transmitting the broadcast signals including the inserted first symbol, the second symbol, and the modulated data,

wherein the signal frame includes first layer information which includes identifiers of the PLPs, and

wherein the signal frame includes a second PLP carrying second layer information that includes service description information and a first PLP carrying mapping information between a PLP and components of a service described in the second layer information.

2. An apparatus for transmitting broadcast signals, the apparatus comprising:

an encoder to encode PLP (Physical Layer Pipe) data carried in each of a plurality of PLPs, each PLP carries at least one broadcast service or at least one broadcast service component;

a frame builder to build a signal frame by mapping the encoded PLP data into data symbols of the signal frame,

wherein the data symbols carry the plurality of PLPs;

a modulator to modulate data in the built signal frame by an OFDM (Orthogonal Frequency Division Multiplex) scheme;

an inserter to insert a first symbol and a second symbol in front of the modulated data; and

a transmitter to transmit the broadcast signals including the inserted first symbol, the second symbol, and the modulated data

wherein the signal frame includes first layer information which includes identifiers of the PLPs, and

wherein the signal frame includes a second PLP carrying second layer information that includes service description information and a first PLP carrying mapping information between a PLP and components of a service described in the second layer information.

3. A method for receiving broadcast signals, the method comprising:

receiving the broadcast signals;

detecting a first symbol and a second symbol in the received broadcast signals, wherein the broadcast signals include a signal frame having first layer information which includes identifiers of PLPs (Physical Layer Pipes), and

wherein the signal frame includes a second PLP carrying second layer information that includes service description information and a first PLP carrying mapping information between a PLP and components of a service described in the second layer information;

demodulating the broadcast signals by an OFDM (Orthogonal Frequency Division Multiplex) scheme;

parsing the signal frame,

wherein the signal frame carries the PLPs; and

decoding PLP data carried in each of plurality of PLPs, each PLP carries at least one broadcast service or at least one broadcast service component.

4. An apparatus for receiving broadcast signals, the apparatus comprising:

a receiver to receive the broadcast signals;

a detector to detect a first symbol and a second symbol in the received broadcast signals, wherein the broadcast signals include a signal frame having first layer information which includes identifiers of PLPs (Physical Layer Pipes), and

wherein the signal frame includes a second PLP carrying second layer information that includes service description information and a first PLP carrying mapping information between a PLP and components of a service described in the second layer information;

a demodulator to demodulate the broadcast signals by an Orthogonal Frequency Division Multiplex (OFDM) scheme;

parsing the signal frame,

wherein the signal frame carries the PLPs; and

decoding PLP data carried in each of plurality of PLPs, each PLP carries at least one broadcast service or at least one broadcast service component.