WO2009136733A2 - Dispositif pour transmettre des données en couches - Google Patents

Dispositif pour transmettre des données en couches Download PDF

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Publication number
WO2009136733A2
WO2009136733A2 PCT/KR2009/002379 KR2009002379W WO2009136733A2 WO 2009136733 A2 WO2009136733 A2 WO 2009136733A2 KR 2009002379 W KR2009002379 W KR 2009002379W WO 2009136733 A2 WO2009136733 A2 WO 2009136733A2
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WO
WIPO (PCT)
Prior art keywords
data
encoding scheme
unit
layer
encoded data
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2009/002379
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English (en)
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WO2009136733A3 (fr
Inventor
Junyoung Nam
Jae Young Ahn
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Electronics and Telecommunications Research Institute ETRI
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Electronics and Telecommunications Research Institute ETRI
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Filing date
Publication date
Priority to US12/991,325 priority Critical patent/US8494082B2/en
Priority claimed from KR1020090037578A external-priority patent/KR101542256B1/ko
Application filed by Electronics and Telecommunications Research Institute ETRI filed Critical Electronics and Telecommunications Research Institute ETRI
Publication of WO2009136733A2 publication Critical patent/WO2009136733A2/fr
Publication of WO2009136733A3 publication Critical patent/WO2009136733A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability

Definitions

  • the present invention relates to a technology that transmits a plurality of pieces of layer data.
  • Digital broadcasting may have a quality superior to analog broadcasting.
  • digital broadcasting may not be received when a channel is degraded below a particular standard, while a receiving quality of analog broadcasting deteriorates as a channel is degraded.
  • a layered modulation may be applied.
  • a digital wireless communication system has been developed after the advent of a second generation mobile communication system such as a Global System for Mobile Communication (GSM) scheme and a Code Division Multiple Access (CDMA) scheme.
  • GSM Global System for Mobile Communication
  • CDMA Code Division Multiple Access
  • a convergence technology that provides a wireless multicast/broadcast service through a separate multicast/broadcast channel comes into the spotlight in a wireless communication system.
  • a technology that provides a particular terminal with a Video On Demand (VOD) service or a multimedia service including a video through a given unicast channel is also the focus of attention.
  • VOD Video On Demand
  • Scalable Video Coding which is a multimedia compression technology for source coding required in a broadcasting or communication system, is also in the limelight since it may satisfy a variety of requirements and Quality of Service (QoS).
  • SVC is a source coding scheme appropriate for a heterogeneous network where a broadcasting network and other communication networks are connected, and may transmit a single video source using a plurality of layers.
  • a receiving end may receive a portion of or entire layers with a higher priority depending on conditions such as a channel state, and replay a video with variable qualities.
  • Layering of SVC may include a temporal layering, a spatial layering, and a quality layering.
  • the temporal layering may variably control the number of frames per second
  • the spatial layering may variably control a size of a replay screen
  • the quality layering may variably control a video quality such as the number of bits per pixel.
  • each layer may not be independently decoded. That is, only when layers with higher priority than a corresponding layer itself are decoded may the corresponding layer be decoded, which is known as layered decoding.
  • Layered modulation may first modulate multimedia data of a basic layer using a Quadrature Phase-shift keying (QPSK), and include an enhanced layer to the multimedia data of the basic layer, and transmit data of the two layers using 16-state Quadrature Amplitude Modulation (16-QAM).
  • QPSK Quadrature Phase-shift keying
  • 16-QAM 16-state Quadrature Amplitude Modulation
  • a terminal with a suitable channel state may receive the two layers without error
  • a terminal with an unsuitable channel state may receive only data of the basic layer.
  • An aspect of the present invention provides a transmission and receiving apparatus that may enable a number of pieces of layer data that may be received to be varied depending on a channel state of the receiving apparatus.
  • a transmission apparatus including: a first encoding unit to encode first layer data based on a first encoding scheme and generate first encoded data; a second encoding unit to encode both the first encoded data and second layer data based on a second encoding scheme and generate second encoded data; and a transmission unit to transmit the second encoded data to a receiving apparatus.
  • a transmission apparatus including: a first encoding unit to encode first layer data based on a first encoding scheme and generate first encoded data; a second encoding unit to encode both the first encoded data and second layer data based on a second encoding scheme and generate second encoded data; a third encoding unit to encode third layer data based on a third encoding scheme and generate third encoded data; a fourth encoding unit to encode both the third encoded data and fourth layer data based on a fourth encoding scheme and generate fourth encoded data; a precoding unit to multiply the second encoded data and the fourth encoded data with a precoding matrix to generate a plurality of data streams; and a transmission unit to transmit the plurality of data streams to a receiving apparatus using a transmission antenna corresponding to each of the plurality of data streams.
  • a receiving apparatus including: a receiving unit to receive first encoded data from a transmission apparatus; a first decoding unit to decode the first encoded data based on a first encoding scheme and generate second decoded data and first layer data; and a second decoding unit to decode the second decoded data based on a second encoding scheme and generate second layer data.
  • a number of pieces of layer data that may be received may vary depending on a channel state of a receiving apparatus, and thus a receiving apparatus with an unsuitable channel state may maintain basic communication and a receiving apparatus with a suitable channel state may be provided with a high quality communication service.
  • FIG. 1 is a conceptual diagram illustrating a data transmission method according to an embodiment of the present invention
  • FIG. 2 is a conceptual diagram illustrating a nested coding scheme according to an embodiment of the present invention
  • FIG. 3 conceptual diagram of a nested coding scheme according to an embodiment of the present invention
  • FIG. 4 is a block diagram illustrating a configuration of a transmission apparatus according to an embodiment of the present invention.
  • FIG. 5 is a block diagram illustrating a configuration of the transmission unit of FIG. 4;
  • FIG. 6 is a block diagram illustrating a configuration of a transmission apparatus according to another embodiment of the present invention.
  • FIG. 7 is a block diagram illustrating a configuration of a receiving apparatus according to an embodiment of the present invention.
  • FIG. 1 is a conceptual diagram illustrating a data transmission method according to an embodiment of the present invention.
  • a scalable encoder 110 may encode multimedia data for each layer.
  • Basic layer data may include a minimum amount of data to replay the multimedia data.
  • Enhanced layer data may include additional data to improve a sound/video quality of the multimedia data.
  • the receiving apparatus 150 may receive only the basic layer data and replay a multimedia source. However, when a channel state of a receiving apparatus 160 is suitable, the receiving apparatus 160 may receive both the basic layer data and the enhanced layer data, and replay high quality multimedia data.
  • a dynamic adaptation apparatus 120 may determine layer data to be transmitted to each of the receiving apparatuses 150 and 160 based on information of the receiving apparatuses 150 and 160 receiving the layer data. That is, when the receiving apparatus 150 includes a small screen, the receiving apparatus 150 may receive only basic layer data. When the receiving apparatus 160 includes a large screen, the receiving apparatus 160 may receive both the basic layer data and the enhanced layer data.
  • the layer data which is encoded by the scalable encoder 110 and selected by the dynamic adaptation apparatus 120 may be transmitted to a transmission apparatus 140 via a communication network 130.
  • the transmission apparatus 140 may encode the layer data of each layer based on a nested coding scheme, and transmit the encoded layer data to each of the receiving apparatuses 150 and 160.
  • the receiving apparatus 150 may receive only the basic layer data from among the layer data encoded based on the nested coding scheme.
  • the receiving apparatus 160 may receive both the basic layer data and the enhanced layer data from among the layer data encoded based on the nested coding scheme.
  • the receiving apparatus 150 with an unsuitable channel state may maintain a basic communication and the receiving apparatus 160 with a suitable channel state may be provided with a high quality communication service.
  • FIG. 2 is a conceptual diagram illustrating a nested coding scheme according to an embodiment of the present invention.
  • a state of digital data may be defined as one of '0' and '1'. Accordingly, a state of n-bit data may be located in a 2 n space 210.
  • a concept of encoding data (w 1 , w 2 ), configured as two pieces of layer data, based on the nested coding scheme is described in detail.
  • a transmission apparatus may encode data w 2 based on an encoding scheme and generate encoded data c 2 (w 2 ).
  • a code rate of the encoding scheme may be R 2 .
  • the transmission apparatus may encode both data w 1 and the encoded data c 2 (w 2 ) based on an encoding scheme, and generate encoded data c 1 (w 1 , w 2 ).
  • a code rate of the encoding scheme may be R 1 and a code rate of the encoded data c 1 (w 1 , w 2 ) may be R 1 + R 2 .
  • the nested coding scheme may be applied to a number of pieces of layer data.
  • a receiving apparatus receiving the encoded data based on the nested coding scheme may decode both the data w 1 and the data w 2 based on a channel state, or decode any one of the data w 1 and the data w 2 based on the channel state and apparatus information about the receiving apparatus. That is, the receiving apparatus may variably decode data based on the channel state or the apparatus information. Accordingly, a data transmission rate which is close to a maximum data transmission rate may be obtained depending on the channel state.
  • the encoded data c 2 (w 2 ) may be mapped to a center point of each of data spaces 220 and 230 divided within the 2 n space 210.
  • the data (w 1 , w 2 ) may be mapped to any one point of sub data spaces 241, 242, and 243 in the data spaces 230 and 240.
  • FIG. 3 conceptual diagram of a nested coding scheme according to an embodiment of the present invention.
  • QPSK Quadrature Phase-shift keying
  • FIG. 3 (a) illustrates a modulation of the basic layer data.
  • FIG. 3 (b) illustrates a modulation of the enhanced layer data.
  • An embodiment where a power of a symbol 320 where the enhanced layer data is mapped is P 2 is illustrated in FIG. 3 (b).
  • P 1 the power of the basic layer data
  • P 2 the power of the enhanced layer data
  • FIG. 3 (c) illustrates that the modulated basic layer data and the modulated enhanced layer data are superposed.
  • the receiving apparatus may determine the basic layer data and the enhanced layer data, respectively.
  • the receiving apparatus may first determine the basic layer data 330, and determine the enhanced layer data through a successive cancellation of the determined basic layer data 330 from the superposed symbol 340.
  • the receiving apparatus may not receive the enhanced layer data when a channel state is not suitable.
  • the receiving apparatus may receive only the basic layer data transmitted in the power of the basic layer data, P 1 .
  • FIG. 4 is a block diagram illustrating a configuration of a transmission apparatus according to an embodiment of the present invention.
  • the transmission apparatus may include at least one data division unit, that is, a first data division unit 410 and a second data division unit 440, a first encoding unit 420, a second encoding unit 430, a third encoding unit 450, a fourth encoding unit 460, and a transmission unit 470.
  • the first encoding unit 420 may encode first layer data based on a first encoding scheme and generate first encoded data.
  • the first encoding scheme may include a convolutional coding scheme, a turbo encoding scheme, and a low density parity check (LDPC) encoding scheme.
  • LDPC low density parity check
  • the second encoding unit 430 may encode both the first encoded data and second layer data based on a second encoding scheme and generate second encoded data.
  • the second encoding scheme may include the convolutional encoding scheme, the turbo encoding scheme, and the LDPC encoding scheme.
  • the first encoding scheme may be different from the second encoding scheme.
  • a code rate of the first encoding scheme may be different from a code rate of the second encoding scheme.
  • a receiving apparatus which receives the second encoded data may compare a channel state of the receiving apparatus to each of the code rate of the first encoding scheme and the code rate of the second encoding scheme. Also, the receiving apparatus may selectively decode any one of the first layer data and the second layer data.
  • the third encoding unit 450 may encode third layer data based on a third encoding scheme and generate third encoded data.
  • the third encoding scheme may include the convolutional encoding scheme, the turbo encoding scheme, and the LDPC encoding scheme.
  • the fourth encoding unit 460 may encode both the third encoded data and fourth layer data based on a fourth encoding scheme and generate fourth encoded data.
  • the fourth encoding scheme may include the convolutional encoding scheme, the turbo encoding scheme, and the LDPC encoding scheme.
  • the first data division unit 410 may divide 1 st original data into the first layer data and the second layer data.
  • the first data division unit 410 may divide particular multimedia data into basic layer data and enhanced layer data.
  • the basic layer data may be a minimum amount of data to replay the multimedia data
  • the enhanced layer data may be data to improve a sound quality or a video quality of the multimedia data.
  • the first data division unit 410 may generate the basic layer data as the first layer data, and generate the enhanced layer data as the second layer data.
  • the second data division unit 440 may divide 2 nd original data into the first layer data and the second layer data in a similar manner as the first data division unit 410.
  • the second data division unit 440 may generate the basic layer data as third layer data, and the enhanced layer data as fourth layer data.
  • the transmission unit 470 may transmit the second encoded data or the fourth encoded data to the receiving apparatus.
  • the transmission unit 470 may transmit the second encoded data in a first transmit power, and transmit the fourth encoded data in a second transmit power.
  • the transmission unit 470 may change a value of the first transmit power and the second transmit power depending on a channel state. An operation of the transmission unit 470 is described in greater detail with reference to FIG. 5.
  • FIG. 5 is a block diagram illustrating a configuration of the transmission unit 470 of FIG. 4.
  • the transmission unit 470 may include power control units 510 and 520, and a precoding unit 530.
  • the first power control unit 510 may control a transmit power of the second encoded data
  • the second power control unit 520 may control a transmit power of the fourth encoded data.
  • the first power control unit 510 and the second power control unit 520 may control the transmit power of each of the second encoded data and the fourth encoded data depending on a channel state of each of the receiving apparatuses 551 and 552, a data rate of original data, and the like.
  • the first power control unit 510 and the second power control unit 520 may control the transmit power of each of the second encoded data and the fourth encoded data based on a receiving priority order of layer data included in each of the second encoded data and the fourth encoded data.
  • the precoding unit 530 may multiply the power-controlled second encoded data and the controlled fourth encoded data with a precoding matrix, and generate a plurality of data streams.
  • the precoding unit 530 may control the precoding matrix to obtain a diversity gain, or to obtain a spatial multiplexing gain.
  • the transmission unit 470 may transmit the plurality of data streams to the receiving apparatuses 551 and 552 using transmission antennas 541 and 542 corresponding to each of the plurality of data streams.
  • FIG. 6 is a block diagram illustrating a configuration of a transmission apparatus according to another embodiment of the present invention.
  • the transmission apparatus may include layer encoding units 610 and 630, layer modulation units 620 and 640, power control units 651 and 652, and a precoding unit 660.
  • the layer encoding units 610 and 630 may generate encoded data using a layer encoding scheme.
  • the layer encoding scheme may be an encoding scheme to generate the encoded data using a plurality of encoding schemes. In this instance, a code rate of each of the plurality of encoding schemes may be different.
  • the first layer encoding unit 610 may include a first encoding unit 611, a second encoding unit 612, a third encoding unit 613, and a fourth encoding unit 614.
  • the first encoding unit 611 may encode first layer data based on a first encoding scheme, and generate first encoded data.
  • the second encoding unit 612 may encode the first encoded data and second layer data based on a second encoding scheme, and generate second encoded data.
  • the third encoding unit 613 may encode third layer data based on a third encoding scheme, and generate third encoded data.
  • the fourth encoding unit 614 may encode the third encoded data and fourth layer data based on a fourth encoding scheme, and generate fourth encoded data.
  • the second layer encoding unit 630 may encode pieces of layer data and generate pieces of encoded data in a similar manner as the first layer encoding unit 610.
  • the first layer modulation unit 620 may include a plurality of modulation units 621 and 623 and a plurality of power control units 622 and 624.
  • the first modulation unit 621 may modulate the second encoded data generated by the second encoding unit 612.
  • the second modulation unit 623 may modulate the fourth encoded data generated by the fourth encoding unit 614.
  • the first power control unit 622 may control a transmit power of the modulated second encoded data.
  • the second power control unit 624 may control a transmit power of the modulated fourth encoded data.
  • the second layer encoding unit 630 and the second layer modulation unit 640 may encode and modulate pieces of layer data in a similar manner as the first layer encoding unit 610 and the first layer modulation unit 620.
  • a multiple-input and multiple-output (MIMO) antenna system may provide diversity for a lower error rate and spatial multiplexing for a high transmission rate.
  • the MIMO antenna system may enable a layered spatial multiplexing.
  • pieces of independent encoded data may be transmitted.
  • a basic layer with a higher priority may be transmitted in a relatively high transmit power, a relatively low code rate, and/or using a low-level modulation scheme to enable a receiving apparatus to perform a layer receiving.
  • an enhanced layer with a relatively low priority may be transmitted in a relatively low transmit power, a relatively high code rate, and/or using a high-level modulation scheme. Accordingly, a terminal with a suitable channel state may receive the enhanced layer.
  • a layer encoding scheme, a layer modulation scheme, and an MIMO may be combined, and thus a greater number of layers may be transmitted/received.
  • a number of layers that may be transmitted by the transmission apparatus of FIG. 6 may be determined by multiplying a number of layers supported by the layer encoding scheme, a number of layers supported by the layer modulation scheme, and a number of layers supported by the MIMO.
  • the transmission apparatus may transmit total 12 layers.
  • the number of layers supported by the MIMO may be determined by a smaller number of a number of transmission antennas and a number of receiving antennas.
  • Receiving apparatuses 671 and 672 may selectively receive at least one layer from a plurality of layers based on a channel state or apparatus information of the receiving apparatuses 671 and 672. Accordingly, even when the transmission apparatus transmits same data, a number of layers that may be received by each of the receiving apparatuses 671 and 672 may be different. Therefore, a data rate of multimedia data that each of the receiving apparatuses 671 and 672 replays may vary.
  • FIG. 7 is a block diagram illustrating a configuration of a receiving apparatus according to an embodiment of the present invention.
  • the receiving apparatus may include an MIMO detector 710, a channel estimator 720, a channel decoder 730, and a data combination unit 740.
  • the signal, multiplexing-transmitted as described above, may first be separated from multiplexing antenna signals through the MIMO detector 710.
  • the MIMO detector 710 may first detect a basic layer in a first stream for layered modulation.
  • the detected signal may be restored as a transmission signal through the channel decoder 730 in a decoding rate corresponding to a channel state.
  • the restored signal is accurate.
  • a subsequent layer of the layered modulation may be restored in a same manner as the above-described process, and thus the first stream may be completely decoded.
  • a decoding operation with respect to remaining streams may be the same as the above-described decoding.
  • a characteristic of a channel code according to the present invention is that layer multimedia data of various levels may be supported, and code words for each layer may have a layered structure.
  • the layered structure may indicate that, when code word sets for two layers, C 1 and C 2 , exist, the code word set C 2 of a basic layer may be a subset of the code word set C 1 of an upper layer. Accordingly, a characteristic that uses the single code word set C 1 to decode the two layers may be efficiently used for the decoding operation.
  • the channel decoder 730 may completely decode layer data to a corresponding layer through a single decoding operation.
  • the decoding operation may be simultaneously performed with respect to decodable layers, while encoding may be performed through a plurality of operations depending on a number of layers.
  • the above-described characteristic may be different from the layered modulation which requires an additional layered decoding for each layer.
  • the data combination unit 740 may combine first layer data and second layer data and generate receiving data.
  • the receiving data may be multimedia data
  • the first layer data may be basic layer data of the multimedia data
  • the second layer data may be enhanced layer data of the multimedia data.
  • a receiving apparatus may replay the multimedia data using the basic layer data of the multimedia data. However, the receiving apparatus may improve a sound/video quality of the multimedia data by additionally using the enhanced layer data.
  • the receiving apparatus may receive a portion of layer data from among pieces of layer data based on apparatus information of the receiving apparatus or a channel state. For example, when the channel state is not suitable, the receiving apparatus may receive only the basic layer data. Also, when a small screen is included in the receiving apparatus, the receiving apparatus may receive only the basic layer data.
  • the basic layer data may be transmitted in a higher transmit power than the enhanced layer data. Accordingly, a receiving apparatus, that may not receive the enhanced layer data due to a long distance from the transmission apparatus, may receive the basic layer data. The receiving apparatus located far away from the transmission apparatus may replay the multimedia data using only the basic layer data.
  • a receiving apparatus located closed to the transmission apparatus may receive the enhanced layer data as well as the basic layer data. Accordingly, the receiving apparatus located closed to the transmission apparatus may replay the multimedia data with an improved sound/video quality.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Communication Control (AREA)

Abstract

L'invention concerne un dispositif de transmission qui comprend: une première unité de codage qui code des données d'une première couche selon un premier protocole de codage et produit des premières données codées; une deuxième unité de codage qui code à la fois les premières données codées et des données d'une deuxième couche selon un deuxième protocole de codage, et produit des deuxièmes données codées; et une unité de transmission qui transmet les deuxièmes données codées à un dispositif de réception.
PCT/KR2009/002379 2008-05-06 2009-05-06 Dispositif pour transmettre des données en couches Ceased WO2009136733A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/991,325 US8494082B2 (en) 2008-05-06 2009-03-06 Apparatus for transmitting layered data

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2008-0041964 2008-05-06
KR20080041964 2008-05-06
KR1020090037578A KR101542256B1 (ko) 2008-05-06 2009-04-29 계층 데이터를 전송하는 장치
KR10-2009-0037578 2009-04-29

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WO2009136733A2 true WO2009136733A2 (fr) 2009-11-12
WO2009136733A3 WO2009136733A3 (fr) 2010-05-27

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011099749A3 (fr) * 2010-02-12 2011-12-29 엘지전자 주식회사 Émetteur / récepteur de signaux de diffusion et procédé d'émission / réception de signaux de diffusion
WO2011136574A3 (fr) * 2010-04-28 2012-01-26 엘지전자 주식회사 Émetteur de signaux diffusés, récepteur de signaux diffusés et procédé d'émission et de réception de signaux diffusés entre l'émetteur de signaux diffusés et le récepteur de signaux diffusés
EP2597803A4 (fr) * 2011-06-24 2013-09-04 Panasonic Corp Dispositif de transmission, procédé de transmission, dispositif de réception et procédé de réception
US10027518B2 (en) 2010-02-12 2018-07-17 Lg Electronics Inc. Broadcasting signal transmitter/receiver and broadcasting signal transmission/reception method

Family Cites Families (3)

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Publication number Priority date Publication date Assignee Title
US20050143085A1 (en) * 2003-12-30 2005-06-30 Hao Bi Broadcast/multicast services in wireless communications networks and methods
WO2005117444A1 (fr) * 2004-05-31 2005-12-08 Matsushita Electric Industrial Co., Ltd. Systeme de radiodiffusion numerique et procede de transmission et de reception par radiodiffusion numerique
US7630451B2 (en) * 2005-01-11 2009-12-08 Qualcomm Incorporated Methods and apparatus for transmitting layered and non-layered data via layered modulation

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011099749A3 (fr) * 2010-02-12 2011-12-29 엘지전자 주식회사 Émetteur / récepteur de signaux de diffusion et procédé d'émission / réception de signaux de diffusion
US10027518B2 (en) 2010-02-12 2018-07-17 Lg Electronics Inc. Broadcasting signal transmitter/receiver and broadcasting signal transmission/reception method
US9887850B2 (en) 2010-02-12 2018-02-06 Lg Electronics Inc. Broadcasting signal transmitter/receiver and broadcasting signal transmission/reception method
US9882731B2 (en) 2010-02-12 2018-01-30 Lg Electronics Inc. Broadcasting signal transmitter/receiver and broadcasting signal transmission/reception method
US9363791B2 (en) 2010-04-28 2016-06-07 Lg Electronics Inc. Broadcast signal transmitter, broadcast signal receiver, and method for transceiving broadcast signals in broadcast signal transceivers
US9197472B2 (en) 2010-04-28 2015-11-24 Lg Electronics Inc. Broadcast signal transmitter, broadcast signal receiver, and method for transceiving broadcast signals in broadcast signal transceivers
US9602320B2 (en) 2010-04-28 2017-03-21 Lg Electronics Inc. Broadcast signal transmitter, broadcast signal receiver, and method for transceiving broadcast signals in broadcast signal transceivers
US9735994B2 (en) 2010-04-28 2017-08-15 Lg Electronics Inc. Broadcast signal transmitter, broadcast signal receiver, and method for transceiving broadcast signals in broadcast signal transceivers
US9806930B2 (en) 2010-04-28 2017-10-31 Lg Electronics Inc. Broadcast signal transmitter, broadcast signal receiver, and method for transceiving broadcast signals in broadcast signal transceivers
US9106493B2 (en) 2010-04-28 2015-08-11 Lg Electronics Inc. Broadcast signal transmitter, broadcast signal receiver, and method for transceiving broadcast signals in broadcast signal transceivers
WO2011136574A3 (fr) * 2010-04-28 2012-01-26 엘지전자 주식회사 Émetteur de signaux diffusés, récepteur de signaux diffusés et procédé d'émission et de réception de signaux diffusés entre l'émetteur de signaux diffusés et le récepteur de signaux diffusés
US9112568B2 (en) 2011-06-24 2015-08-18 Panasonic Intellectual Property Corporation Of America Transmission device, transmission method, receiving device and receiving method
EP2597803A4 (fr) * 2011-06-24 2013-09-04 Panasonic Corp Dispositif de transmission, procédé de transmission, dispositif de réception et procédé de réception

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