WO2013109113A1 - 스트리밍 서비스를 제공하는 방법 및 장치 - Google Patents
스트리밍 서비스를 제공하는 방법 및 장치 Download PDFInfo
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- WO2013109113A1 WO2013109113A1 PCT/KR2013/000468 KR2013000468W WO2013109113A1 WO 2013109113 A1 WO2013109113 A1 WO 2013109113A1 KR 2013000468 W KR2013000468 W KR 2013000468W WO 2013109113 A1 WO2013109113 A1 WO 2013109113A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/70—Media network packetisation
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/29—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes
- H03M13/2906—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes using block codes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0064—Concatenated codes
- H04L1/0065—Serial concatenated codes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0078—Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location
- H04L1/0083—Formatting with frames or packets; Protocol or part of protocol for error control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/54—Store-and-forward switching systems
- H04L12/56—Packet switching systems
- H04L12/5601—Transfer mode dependent, e.g. ATM
- H04L2012/5603—Access techniques
Definitions
- the present invention relates to a method and apparatus for providing a streaming service. More specifically, the present invention relates to a method and apparatus for providing a higher quality streaming service to users in various communication environments.
- PLR Packet Loss Rate
- users of a good channel environment can reduce the delay of the FEC block to reduce the delay and transmit the streaming service.
- relatively low code rate is needed to provide fast service to users in channel environment with poor communication environment.
- transmission efficiency may be burdened, thus increasing the size of the FEC block to increase the transmission efficiency.
- you increase the size of the FEC Block you can enjoy the service with a relatively long delay.
- each user receives the service in a good channel environment (e.g., 1% PLR), while others receive a relatively bad channel environment (e.g., For example, PLR 10%) will receive the service.
- a good channel environment e.g., 1% PLR
- a relatively bad channel environment e.g., For example, PLR 10%
- some users receive a random packet loss environment, while others receive a service in a burst packet loss environment. In such a case, a method for efficiently transmitting data for each user is required.
- the present invention has been proposed to solve the above problems, and an object thereof is to provide a method and an apparatus for easily providing a streaming service to a plurality of users located in various environments or a plurality of users whose communication status changes according to movement. .
- the streaming data encoding method comprises the steps of dividing the Forward Error Correction (FEC) source block into one or more FEC sub-blocks; A first encoding step of FEC encoding the one or more FEC subblocks; A second encoding step of encoding the FEC source block; And generating third encoded data including first encoded data encoded in the first encoding step and second encoded data encoded in the second encoding step.
- FEC Forward Error Correction
- a method of a terminal for decoding streaming data includes receiving streaming data; Determining a communication environment of the terminal; Determining a method of decoding the received streaming data according to the determined communication environment of the terminal; And decoding the received streaming data with the determined decoding method.
- a streaming service can be smoothly provided to a plurality of users whose communication environment changes according to various environments or changes in mobile and communication states.
- FIG. 1 is a block diagram illustrating an encoding method according to an embodiment.
- FIG. 2 is a diagram illustrating a decoding method according to a first embodiment of the present invention.
- FIG. 3 is a diagram illustrating a decoding method according to a second embodiment of the present invention.
- FIG. 4 is a diagram illustrating a flow of data during encoding according to an embodiment of the present invention.
- 5A is a flowchart illustrating a decoding method according to an embodiment of the present invention.
- 5B is a diagram illustrating the flow of data during decoding according to an embodiment of the present invention.
- User Group A When a streaming service is multicasted or broadcasted, some of the user groups that receive the streaming server (hereafter User Group A) receive the service in a relatively good channel environment (e.g. 1% PLR) and the other users ( Hereinafter, the user group B) may receive a service in a relatively bad channel environment (for example, 10% PLR) than the user group A.
- the user group A may receive a service in a random packet loss
- the user group B may receive a service in a burst packet loss environment.
- a user of a different user group A may correspond to a user group B because the communication channel environment is changed from a good channel environment to a bad channel environment due to a change in channel state or a user's position shift.
- a group of users receives a streaming service in a good channel state (low PLR and random loss)
- some or all users of the group are relatively bad (high PLR) due to data congestion or the like.
- burst loss may be considered.
- there is a communication radius covered by a cell of a base station and among users located within the radius, users who are relatively close to the base station may be classified as user group A. Users at the boundary of the radius covered by the cell can be classified as user group B.
- a streaming service is provided to user group A and user group B in the same manner.
- the streaming service is performed with a small FEC block, a low code rate should be used for the user group B. Therefore, the transmission efficiency is low.
- the streaming service is performed with a large FEC block, although the user group A is in a channel environment in which the service can be quickly watched according to the delay, a delay may occur in providing the service due to the large FEC block.
- a streaming service is provided to users by multicast or broadcast.
- the service provider transmits the code rate and FEC block size by assuming a general channel state.
- a channel state is worse than expected due to a user's movement, or a burst packet loss occurs due to data congestion at the network side during service transmission.
- a phenomenon may occur in which the screen is opened or stopped during the streaming service without recovering the packet loss in the previously transmitted FEC block. Therefore, if a bad channel condition persists later, the user may not receive the service smoothly.
- FIG. 1 is a block diagram illustrating an encoding method according to an embodiment.
- the same FEC source block 100 may be encoded through a plurality of encoders 120 and 130 during FEC encoding to provide a streaming service.
- the FEC 1 encoder 120 and the FEC 2 130 may perform encoding using the same code. In some cases, encoding may be performed by applying different code rates.
- the FEC Source Block 100 is a block including data to be provided to a streaming service.
- the FEC Source Block 100 may be divided into M FEC Sub-Blocks 112, 114, and 116.
- the sub-blocks may vary in size depending on a communication situation. For example, one FEC sub-block can be set to be played back within a preset time during playback, and more preferably, the data corresponding to the divided FEC sub-block can be played for the same time. You can adjust the size. In addition, considering the general communication environment, the size of the FEC sub-block can be adjusted to minimize the transmission load according to the code rate required by the user.
- the code used by the FEC 1 encoder 120 for encoding may be referred to as an FEC 1 code
- the code used by the FEC 2 encoder 130 for encoding may be referred to as an FEC 2 code.
- the first to Mth FEC sub-blocks may be encoded through the FEC 1 encoder 120.
- the data encoded by the first encoder may include first to M th FEC sub-blocks 141, 143, and 145.
- the first to Mth FEC Sub-Blocks 141, 143, and 145 may be the same as or different from the first to Mth FEC Sub-Blocks.
- the first to Mth P1 parity payload 1 for recovering the sub-blocks of each of the first to Mth FEC sub-blocks 141, 143, and 145 ( 142, 144, 146.
- a user who receives the first FEC Sub-Block 141 may recover an error through the first P1 142 even when there is a loss to the first FEC Sub-Block 141.
- the FEC Source Block 100 may be encoded through the FEC 2 encoder 130.
- the FEC 2 encoder 130 encodes the entire FEC Source Block 100 in the drawing
- the FEc Source is a sub-block having a larger size than the sub-block encoded by the FEC 1 encoder 120 according to an embodiment.
- the block 100 may be divided and encoded.
- the P2 (parity payload 2) 150 of the FEC Source Block 100 encoded in the FEC 2 encoder 130 may be attached to the transmitted data.
- the data 141 to 150 encoded by the two encoders 120 and 130 may be transmitted to the user. The user can recover the error through the P2 150 even if there is a certain level of loss in the received FEC Source Block.
- a user who receives data by the encoding method of FIG. 1 may play a streaming service in the following manner.
- User group A recovers the lost packet using the code of the FEC 1 encoder 120 to enjoy the service with a relatively low delay (fast start-up)
- the user group B may recover by using the code of the FEC 2 encoder 130 when the lost packet recovery failure using the code of the FEC 1 encoder 120. Also, depending on the situation, the lost packet is recovered by using the code of the FEC 2 encoder 130 to enjoy the service. This is a method that can be suggested when user group B monitors its communication environment through channel condition measurement.
- the lost packet can be recovered by the decoding method of 2 to enjoy the service.
- a user in user group B can enjoy the service by maintaining the decoding method by 2 even after switching to user group A after recovering the lost packet by the decoding method by 2 and listening to the service.
- the MMT package includes MMT-CI, MMT ADC, MMT Asset (Video), and MMT Asset (Audio).
- MMT-CI Media Processing Units
- MPUs constituting the Video MMT Asset are packetized into MMT Payload according to the MMT Payload Format to be composed of a stream of MMT Payloads, and MPUs configuring the Audio MMT Asset are also transmitted according to the MMT Payload Format.
- the packetized packet is composed of MMT payloads and composed of a stream of MMT payloads.
- an MMT packet header is added to each MMT payload to form a stream composed of MMT packets.
- an MMT packet header is added to each MMT payload to configure an MMT packet stream by multiplexing after configuring a video stream and an audio stream including MMT packets.
- multiplexing may include a procedure of mixing MMT payload by MMT payload or MMT Packet by MMT Packet.
- the MMT Packet Stream that is, the FEC Source Payload Stream
- the FEC Source Block 100 is a case 3 proposed in FIG. It may be FEC encoded by the method as follows.
- the FEC Source Block 100 may be divided into M FEC Sub-Blocks 112, 114, and 116.
- each FEC sub-block may also include a predetermined number of FEC source payloads.
- Each FEC Sub-Block generates a predetermined number of FEC Parity Payloads using the code of the FEC 1 Encoder 120, and the FEC Source Block 100 uses a code of the FEC 2 Encoder 130. Generate Payload (P2 150 in the drawing).
- FEC Parity Packet Each generated FEC Parity Payload is added to the MMT Packet Header to MMT packet. And MMT FEC Payload ID is added to each MMT Packet to make FEC Packet (FEC Packet for Source Payload is called FEC Source Packet and FEC Packet for Parity Payload is called FEC Parity Packet). ) Can be sent.
- the MMT FEC Payload ID may be divided into an MMT FEC Payload ID for FEC Source Payload and an MMT FEC Payload ID for Parity Payload, which is a block ID information for distinguishing between FEC Blocks at the receiving end.
- Number Information of FEC Parity Payload Number Information of FEC Source Payload and ID (or Sequence Number) information indicating an order in the FEC Block of FEC Parity Payloads may be included.
- the ID is information for enabling FEC decoding from received packets in the FEC Packet Block and the FEC Packet Sub-Block at the receiving end.
- information indicating that the FEC encoding is FEC encoded may be previously transmitted to the receiver through a message.
- the message may be stored in an MMT Packet different from the MMT Packet for FEC Source Payload and FEC Parity Payload in the FEC Block or in the same MMT Packet.
- the message is transmitted so that the receiver knows the FEC coding structure applied by the transmitter in advance.
- FEC 1 code ID, FEC 2 code ID, and FEC source block may be stored in MMT packet different from the FMT source payload and the FMT parity payload in the MMT packet. It may include FEC related messages such as mode information converted to an information block.
- information related to transmission and content consumption such as MMT-CI and MMT-ADC, is transmitted.
- the receiving end acquires information related to transmission and content consumption and FEC related message transmitted in a separate MMT packet, and acquires FEC Block ID and FEC Decoding related information from the MMT FEC Payload IDs of the received MMT packets, thereby obtaining the corresponding FEC Packet Block. And lost packets in the FEC Packet Sub-Block.
- the user group A regenerates the FEC Block from the FEC Source Packet and the associated FEC Parity Packets in the FEC Packet Sub-Block encoded by the FEC 1 code, and performs FEC source payload lost by performing FEC decoding therefrom.
- the user group B regenerates the FEC block from the FEC source packet and the associated FEC parity packets in the FEC packet block encoded by the FEC 2 code, and performs FEC decoding therefrom. To recover lost FEC Source Payload.
- FIG. 2 shows an FEC buffering model and decoding block diagram by user group A
- FIG. 3 shows an FEC buffering model and decoding block diagram by user group B.
- the AL-FEC decoding buffer 240 includes the received FEC Source Payload and FEC Parity included in each FEC Packet Sub-Block 210 to 224. Payloads can be stored in the order indicated by the MMT FEC Payload ID. At this time, the position of the FEC source payload that is not received may be left blank, and in some embodiments, the FEC source payload may be simultaneously received through a plurality of buffers.
- the AL-FEC decoding buffer 240 secures at least the number of FEC Source Payloads of the FEC Block and transmits them to the FEC 1 decoder 250 when the decoding is ready, and deletes the FEC Source or Parity Payload not received. Can be processed and sent.
- the FEC 1 decoder 250 may store the recovered FEC Source Payload in the AL-FEC decoding buffer 240 by performing FEC 1 decoding using the input FEC Source Payload, FEC Parity Payload, and Erasure location information. After decoding of the corresponding FEC block, the AL-FEC decoding buffer 240 de-packetizes the FEC Source Payload (in reverse order of the process of MMT packetization through the MMT Payload in the MPU) to the video decoding buffer 260 and the video decoding buffer. 270 may be sent.
- each media decoding buffer displays and then performs media decoding to finally provide a streaming service to a user.
- the user group A does not store the FEC Packet Block 205 in the AL-FEC decoding buffer 240 but stores the FEC Packet Sub-Block in FEC Packet Sub-Block units to perform FEC decoding. Can be.
- the AL-FEC decoding buffer 340 receives received FEC Source Payload including each FEC Packet Sub-Block in the order of FEC Packet Sub-Blocks 310 to 324. And the FEC Parity Payload are stored in the order indicated by the MMT FEC Payload ID, and FEC decoding is performed using the FEC 1 decoder like user group A. If all the FEC Packet Sub-Blocks in the FEC Packet Block successfully decode using the FEC 1 decoder, the source payloads corresponding to the Source Block are de-packetized and transmitted to each Media Decoding buffer (360, 370). It can provide a streaming service.
- the FEC Source Payload that is not recovered may be additionally recovered using the FEC Parity Payload 345 for the FEC Source Block 305.
- the AL-FEC decoding buffer 340 de-packetizes the source payloads corresponding to the FEC source block 305 and transmits them to respective media decoding buffers 360 and 370 to finally provide a streaming service to the user. can do.
- the user may change his AL-FEC Decoding Buffer to FIG.
- the FEC decoding may be performed like a user in user group B to provide a service. For example, when FEC decoding is suddenly generated in the channel while performing FEC decoding in the user group A, it is possible to provide a good service by switching to the user group B when decoding using the FEC 1 decoder is impossible.
- the decoding terminal may include one or more decoders capable of FEC decoding and a control unit for controlling the decoders.
- FIG. 4 is a diagram illustrating a flow of data during encoding according to an embodiment of the present invention.
- the video encoder 410 and the audio encoder 415 encode and output the generated video content and audio content.
- Video creates a Video Asset 420 consisting of one or more MPUs
- Audio creates an Audio Asset consisting of one or more MPUs, with each MPU paying for the MMT Payload Format.
- the packetizer is packetized to generate MMT Payload Streams 430 and 435.
- MMT packet streams 440 and 445 are generated by adding an MMT packet header to each MMT payload.
- the generated Video MMT Packet Stream 440 and Audio MMT Packet Stream 445 are multiplexed and then composed of one multiplexed MMT Packet Stream 450.
- the multiplexed MMT Packet Stream 450 is then divided into a source block consisting of a predetermined number of MMT packets for FEC encoding.
- Each of the divided source blocks may be encoded 460 by Case 3, the FEC 1 encoder, and the FEC 2 encoder of FIG. 1 to generate parity payloads.
- An MMT FEC Payload ID is added to each of the FEC protected MMT Packets, and an MMT FEC Payload ID and an MMT Packet Header are added to the Parity Payload to create and transmit the FEC Packet Stream 470 to the user.
- 5A is a flowchart illustrating a decoding method according to an embodiment of the present invention.
- a terminal of a receiving side receives an FEC message for FEC decoding of a streaming service (500).
- the terminal may determine an encoding method of the received FEC packet stream based on the received FEC message (502). If the received FEC Packet Stream is encoded in the same manner as in Case 3 of the present invention, the process proceeds to step 506. Otherwise, in step 504, decoding can be performed as in the conventional method.
- the terminal may determine whether the current communication environment of the terminal corresponds to user group A or B.
- FIG. The terminal may determine a communication environment through channel environment measurement.
- after decoding the received FEC Packet Stream it is possible to determine the communication environment of the terminal according to the decoding success.
- an example of determining whether the receiving end belongs to user group A or user group B includes estimating a ratio of lost MMT packets from sequences of received MMT packets, and further comprising FEC encoding related information of an FEC message (eg, The number of FEC Source Packet and FEC Parity Packet of FEC Packet Sub-Block) may be used to determine the channel status of the FEC Packet Sub-Block.
- the terminal may prepare an FEC decoding buffer so that the FEC 1 decoder can perform decoding in units of FEC Packet Sub-Block (508).
- the FEC 1 decoder and the FEC 2 decoder may prepare an FEC decoding buffer for decoding in units of FEC Packeet Sub-Block and FEC Packet Block (510).
- 5B is a diagram illustrating the flow of data during decoding according to an embodiment of the present invention.
- the UE when the UE is ready for FEC decoding after receiving the FEC message, the UE receives the FEC packet stream (520).
- MMT FEC Payload ID information is acquired in each FEC Packet, and FEC decoding is performed from received FEC Source Payload (MMT Packet) and FEC Parity Payload corresponding to each FEC Block (530).
- the decoding method may be performed through the decoding method described in FIGS. 2 and 3.
- the FEC source payload lost through FEC decoding is recovered to generate a recovered multiplexed MMT packet stream (540).
- the video MMT payload stream 560 and the audio MMT payload stream 565 are distinguished and MMT header and de-packetizing are performed to generate a video asset 570 and an audio asset 575 formed of MPUs, respectively.
- the video decoders 580 and the audio decoders 585 of the respective MPUs are decompressed and reproduced.
Abstract
Description
Claims (10)
- 스트리밍 데이터 인코딩 방법에 있어서,순방향 오류 정정(Forward Error Correction, FEC) 소스 블록을 1개 이상의 FEC 서브 블록으로 나누는 단계;상기 1개 이상의 FEC 서브 블록을 FEC 인코딩 하는 제1인코딩 단계;상기 FEC 소스 블록을 인코딩 하는 제2인코딩 단계; 및상기 제1인코딩 단계에서 인코딩 된 제1인코딩 데이터 및 상기 제2인코딩 단계에서 인코딩 된 제2인코딩 데이터를 포함하는 제3인코딩 데이터를 생성하는 단계를 포함하는 방법.
- 제1항에 있어서,상기 1개 이상의 FEC 서브 블록으로 나누는 단계는상기 나누어진 FEC 서브 블록에 포함되는 데이터의 재생 시간이 기 설정된 범위 내의 시간이 될 수 있도록 상기 FEC 서브 블록을 나누는 단계를 포함하는 것을 특징으로 하는 방법.
- 제1항에 있어서,제3인코딩 데이터를 생성하는 단계는 상기 제1인코딩 데이터 및 상기 제2인코딩 단계에서 생성된 FEC 소스 블록에 대한 패러티 패킷을 포함하는 데이터를 생성하는 단계를 포함하는 방법.
- 제1항에 있어서,상기 1개 이상의 FEC 서브 블록으로 나누는 단계는상기 스트리밍 데이터가 전송되는 환경에 따라 FEC 서브 블록의 크기를 유동적으로 결정하는 단계를 포함하는 방법.
- 제1항에 있어서,상기 제1인코딩 단계 및 상기 제2인코딩 단계에서 사용되는 인코딩 방법은 동일한 것을 특징으로 하는 방법.
- 스트리밍 데이터 디코딩하는 단말에서의 방법에 있어서,스트리밍 데이터를 수신하는 단계;상기 단말의 통신 환경을 판단하는 단계;상기 판단된 단말의 통신 환경에 따라 상기 수신한 스트리밍 데이터를 디코딩할 방법을 결정하는 단계; 및상기 결정된 디코딩 방법으로 상기 수신된 스트리밍 데이터를 디코딩하는 단계를 포함하는 디코딩 방법.
- 제6항에 있어서,상기 스트리밍 데이터를 수신하는 단계는 순방향 오류 정정(Forward Error Correction, FEC) 메시지를 수신하는 단계를 포함하고,상기 수신한 FEC 메시지를 기반으로 디코딩 방법의 집합을 선택하는 단계를 포함하는 것을 특징으로 하는 방법.
- 제6항에 있어서,상기 단말의 통신 환경을 판단하는 단계는상기 단말이 측정하거나, 보고 받은 통신 채널 환경 기반으로 상기 단말의 통신 환경을 판단하는 단계를 포함하는 것을 특징으로 하는 방법.
- 제6항에 있어서,상기 수신된 스트리밍 데이터를 디코딩하는 단계는,상기 결정된 디코딩 방법을 통해 디코딩이 실패 할 경우, 상기 결정된 디코딩 방법과 다른 디코딩 방법을 통해 디코딩 하는 단계를 포함하는 것을 특징으로 하는 방법.
- 제9항에 있어서,상기 다른 디코딩 방법은 수신된 스트리밍 데이터의 FEC 패킷 블록의 패러티 패킷을 기반으로 상기 수신된 스트리밍 데이터를 디코딩하는 것을 특징으로 하는 방법.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/372,509 US9485297B2 (en) | 2012-01-20 | 2013-01-21 | Method and apparatus for providing streaming data encoding |
EP13738984.7A EP2806589B1 (en) | 2012-01-20 | 2013-01-21 | Method for providing streaming service |
CN201380009066.0A CN104137455B (zh) | 2012-01-20 | 2013-01-21 | 提供流传输服务的方法和装置 |
JP2014553262A JP6504820B2 (ja) | 2012-01-20 | 2013-01-21 | ストリーミングサービスを提供する方法及び装置 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016085084A1 (ko) * | 2014-11-26 | 2016-06-02 | 엘지전자(주) | 방송 신호 송수신 장치 및 방법 |
CN110121840A (zh) * | 2016-12-22 | 2019-08-13 | 埃克斯普韦公司 | 用于校正用于恢复数据分组的低等待时间错误的方法和设备 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017140261A1 (en) * | 2016-02-19 | 2017-08-24 | Mediatek Inc. | Method and system of adaptive application layer fec for mpeg media transport |
US11663073B2 (en) * | 2020-12-10 | 2023-05-30 | Advanced Micro Devices, Inc. | Method and apparatus for data protection in memory devices |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20010102505A (ko) * | 1999-03-05 | 2001-11-15 | 추후제출 | 고성능 코딩을 가능케 하는 멀티플렉서된 cdma채널들에서의 순방향 에러 정정 |
US7103830B1 (en) * | 2002-12-18 | 2006-09-05 | Applied Micro Circuits Corporation | DC balanced error correction coding |
KR20070118237A (ko) * | 2005-02-22 | 2007-12-14 | 아답틱스, 인코포레이티드 | Ofdma 멀티셀 네트워크에서의 지능형 복조 시스템들및 방법들 |
US20080168332A1 (en) * | 2007-01-05 | 2008-07-10 | Qualcomm Incorporated | Fec code and code rate selection based on packet size |
KR20110007212A (ko) * | 2008-04-21 | 2011-01-21 | 퀄컴 인코포레이티드 | 향상된 스위칭 성능을 위해 송신 데이터 블록들을 인코딩하는 방법 및 장치 |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19630343B4 (de) * | 1996-07-26 | 2004-08-26 | Telefonaktiebolaget L M Ericsson (Publ) | Verfahren und Paket-Übertragungssystem unter Verwendung einer Fehlerkorrektur von Datenpaketen |
US7243285B2 (en) * | 1998-09-23 | 2007-07-10 | Digital Fountain, Inc. | Systems and methods for broadcasting information additive codes |
AU2001278717A1 (en) | 2000-08-24 | 2002-03-04 | Matsushita Electric Industrial Co., Ltd. | Transmitting/receiving method and device therefor |
JP3708950B2 (ja) * | 2000-08-24 | 2005-10-19 | 松下電器産業株式会社 | 送受信方法およびその装置 |
US7389463B2 (en) * | 2001-05-29 | 2008-06-17 | Thomson Licensing | Hierarchical block coding for a packet-based communications system |
WO2003071440A1 (en) * | 2002-02-15 | 2003-08-28 | Digital Fountain, Inc. | System and method for reliably communicating the content of a live data stream |
WO2004001976A2 (en) * | 2002-06-21 | 2003-12-31 | Thomson Licensing S.A. | Method of forward error correction |
US7152199B2 (en) * | 2004-06-02 | 2006-12-19 | Teknovus, Inc. | Method and apparatus for delineating data in an FEC-coded Ethernet frame |
DE102004036383B4 (de) * | 2004-07-27 | 2006-06-14 | Siemens Ag | Codier-und Decodierverfahren , sowie Codier- und Decodiervorrichtungen |
JP4405875B2 (ja) | 2004-08-25 | 2010-01-27 | 富士通株式会社 | エラー訂正用データの生成方法及び生成装置並びに生成プログラム及び同プログラムを格納したコンピュータ読み取り可能な記録媒体 |
EP1797661B1 (en) * | 2004-10-06 | 2011-06-01 | Nokia Corporation | Assembling forward error correction frames |
EP1803245A1 (en) * | 2004-10-07 | 2007-07-04 | Nokia Corporation | Efficient source blocking algorithm for fec for mbms streaming |
WO2006061902A1 (ja) * | 2004-12-09 | 2006-06-15 | Mitsubishi Denki Kabushiki Kaisha | データ送信装置、データ受信装置、およびデータ配信システム |
US7971129B2 (en) * | 2006-05-10 | 2011-06-28 | Digital Fountain, Inc. | Code generator and decoder for communications systems operating using hybrid codes to allow for multiple efficient users of the communications systems |
US20080022345A1 (en) * | 2006-06-29 | 2008-01-24 | Samsung Electronics Co., Ltd. | Demodulator and demodulation method |
BRPI0622135A2 (pt) * | 2006-12-21 | 2011-12-27 | Thomson Licensing | mÉtodo para suporte corretivo de erros futuros para dados de vÍdeo e Áudio em tempo real atravÉs de redes de trabalho protocoladas na internet |
KR101534076B1 (ko) * | 2008-04-30 | 2015-07-07 | 삼성전자주식회사 | 디지털 방송 송신기 및 수신기와 그 스트림 처리방법들 |
US20100011274A1 (en) * | 2008-06-12 | 2010-01-14 | Qualcomm Incorporated | Hypothetical fec decoder and signalling for decoding control |
EP2720399A1 (en) * | 2008-08-25 | 2014-04-16 | Aware, Inc. | System and method of sub-carrier indexing for devices with different decoding capabilities |
TW201141078A (en) * | 2010-05-14 | 2011-11-16 | Nat Univ Chung Cheng | Method of handling packet loss using error-correcting codes and block rearrangement |
KR101655269B1 (ko) * | 2010-05-28 | 2016-09-07 | 삼성전자주식회사 | 무선통신시스템에서 자원분배 장치 및 방법 |
US20130136193A1 (en) * | 2011-11-30 | 2013-05-30 | Samsung Electronics Co. Ltd. | Apparatus and method of transmitting/receiving broadcast data |
-
2012
- 2012-10-09 KR KR1020120111998A patent/KR20130094160A/ko not_active Application Discontinuation
-
2013
- 2013-01-21 US US14/372,509 patent/US9485297B2/en active Active
- 2013-01-21 JP JP2014553262A patent/JP6504820B2/ja active Active
- 2013-01-21 CN CN201380009066.0A patent/CN104137455B/zh not_active Expired - Fee Related
- 2013-01-21 EP EP13738984.7A patent/EP2806589B1/en active Active
- 2013-01-21 WO PCT/KR2013/000468 patent/WO2013109113A1/ko active Application Filing
-
2017
- 2017-10-26 JP JP2017207598A patent/JP6535718B2/ja active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20010102505A (ko) * | 1999-03-05 | 2001-11-15 | 추후제출 | 고성능 코딩을 가능케 하는 멀티플렉서된 cdma채널들에서의 순방향 에러 정정 |
US7103830B1 (en) * | 2002-12-18 | 2006-09-05 | Applied Micro Circuits Corporation | DC balanced error correction coding |
KR20070118237A (ko) * | 2005-02-22 | 2007-12-14 | 아답틱스, 인코포레이티드 | Ofdma 멀티셀 네트워크에서의 지능형 복조 시스템들및 방법들 |
US20080168332A1 (en) * | 2007-01-05 | 2008-07-10 | Qualcomm Incorporated | Fec code and code rate selection based on packet size |
KR20110007212A (ko) * | 2008-04-21 | 2011-01-21 | 퀄컴 인코포레이티드 | 향상된 스위칭 성능을 위해 송신 데이터 블록들을 인코딩하는 방법 및 장치 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016085084A1 (ko) * | 2014-11-26 | 2016-06-02 | 엘지전자(주) | 방송 신호 송수신 장치 및 방법 |
WO2016085083A1 (ko) * | 2014-11-26 | 2016-06-02 | 엘지전자(주) | 방송 신호 송수신 장치 및 방법 |
US9525515B2 (en) | 2014-11-26 | 2016-12-20 | Lg Electronics Inc. | Apparatus and method for sending and receiving broadcast signals |
CN110121840A (zh) * | 2016-12-22 | 2019-08-13 | 埃克斯普韦公司 | 用于校正用于恢复数据分组的低等待时间错误的方法和设备 |
CN110121840B (zh) * | 2016-12-22 | 2023-09-15 | 埃克斯普韦公司 | 用于校正用于恢复数据分组的低等待时间错误的方法和设备 |
Also Published As
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JP2015504288A (ja) | 2015-02-05 |
US9485297B2 (en) | 2016-11-01 |
JP6504820B2 (ja) | 2019-04-24 |
EP2806589A1 (en) | 2014-11-26 |
CN104137455A (zh) | 2014-11-05 |
EP2806589B1 (en) | 2019-06-19 |
CN104137455B (zh) | 2017-08-15 |
JP2018011365A (ja) | 2018-01-18 |
US20140359392A1 (en) | 2014-12-04 |
EP2806589A4 (en) | 2015-09-02 |
KR20130094160A (ko) | 2013-08-23 |
JP6535718B2 (ja) | 2019-06-26 |
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