WO2008046268A1 - A method for fault tolerating in the mobile multimedia broadcast system - Google Patents

A method for fault tolerating in the mobile multimedia broadcast system Download PDF

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Publication number
WO2008046268A1
WO2008046268A1 PCT/CN2006/003763 CN2006003763W WO2008046268A1 WO 2008046268 A1 WO2008046268 A1 WO 2008046268A1 CN 2006003763 W CN2006003763 W CN 2006003763W WO 2008046268 A1 WO2008046268 A1 WO 2008046268A1
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WIPO (PCT)
Prior art keywords
frame
multiplex
subframe
information
header
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PCT/CN2006/003763
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French (fr)
Chinese (zh)
Inventor
Biao Wang
Xiangbiao Yan
Xiaoguang Zhu
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Zte Corporation
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Publication of WO2008046268A1 publication Critical patent/WO2008046268A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/16—Arrangements for providing special services to substations
    • H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
    • H04L12/1863—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast comprising mechanisms for improved reliability, e.g. status reports
    • H04L12/1877—Measures taken prior to transmission
    • 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
    • H04L1/0079—Formats for control data
    • H04L1/008—Formats for control data where the control data relates to payload of a different packet
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/16—Arrangements for providing special services to substations
    • H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
    • H04L12/189—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast in combination with wireless systems
    • 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
    • H04L1/0072—Error control for data other than payload data, e.g. control data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/10—Flow control between communication endpoints
    • H04W28/14—Flow control between communication endpoints using intermediate storage
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services

Definitions

  • the present invention relates to the field of mobile multimedia broadcast or mobile TV technology, and in particular to a fault tolerant method for implementing a mobile multimedia broadcast system.
  • Mobile multimedia broadcasting is a multimedia playback technology that has emerged in recent years. With a handheld terminal, you can watch TV at high speeds. The terminal receives the program list through the wireless protocol, and can select the channel that has the right to watch, so that the multimedia data of the selected channel can be accepted, and the television is watched on the mobile terminal.
  • the audio and video data of the mobile multimedia broadcast is encapsulated in a frame manner.
  • the mobile multimedia broadcasting system transmits audio and video data through a wireless channel or a satellite channel. Due to the characteristics of such airborne wireless transmission, the transmitted data is susceptible to various interferences, resulting in transmission of information errors. Therefore, a certain method should be adopted in the mobile multimedia broadcasting system to correct errors, reduce the bit error rate of the transmission system, and achieve good reception of the terminal, so that the user can enjoy an ideal viewing effect.
  • An object of the present invention is to provide a fault tolerant method for a mobile multimedia broadcast system, which increases the error correction capability of the system, improves the fault tolerance of the multimedia broadcast system, and allows the user to experience a better viewing effect.
  • the technical solution of the present invention is as follows: A fault tolerance method for a mobile multimedia broadcast system, comprising the following steps:
  • step (3) When the multimedia broadcast terminal receives a multiplex frame, the padding portion of the multiplex frame is buffered for use in the next multiplex frame.
  • the foregoing step (3) may further include: when the terminal receives the next multiplex frame, comparing the header information in the next multiplex frame with the information buffered in the buffer, and discovering the header information in the multiplex frame.
  • the buffered multiplexed frame header information is used for demultiplexing processing; or the multimedia broadcast channel provides channel error indication information.
  • the multimedia broadcast terminal uses the buffer.
  • the multiplexed frame header information is subjected to demultiplexing processing.
  • each multiplex frame includes a plurality of multiplex subframes, and the protection information of the multiplex subframe is also recorded in the subframe header of each multiplex subframe; accordingly, in the In the step (2), the padding information of the next multiplex subframe may be included in the padding.
  • the protection information of the multiplex frame includes information such as the length of the frame header, the length of the subframe, and the multiplex frame association parameter.
  • the protection information of the foregoing multiplex subframe includes information such as a header length of the multiplex subframe, a video data segment indication, an audio data segment indication, an auxiliary data segment indication, and the like; the protection information of the multiplex subframe further includes an extension field, and the extension field Contains the length of the video data segment, the length of the audio data segment, and the length of the attached data segment.
  • the padding includes all or part of the information of the frame header of the next multiplex frame, and all or part of the message of the subframe header of the next multiplex subframe.
  • the method provided by the present invention belongs to a media data fault tolerance method suitable for use in a broadcast network, and retransmits important information in a frame header of a 4 bar multiplexed frame.
  • FIG. 1 is a structure of a multiplexed frame header.
  • FIG. 2 shows a structure of a multiplexed subframe.
  • FIG. 3 shows a structure of an extended region of a multiplexed subframe header.
  • FIG. 4 shows a multiplexed frame.
  • FIG. 5 shows a padding structure of a multiplexed frame.
  • FIG. 1 shows a structure of a multiplexed frame header.
  • the video data, the audio data, and the ancillary data are encapsulated together into a frame payload, and the content of the length information and the media parameters are combined to form a frame header to be a complete multiplex frame transmitted in the mobile multimedia broadcast system.
  • a frame header Since there are important contents such as the length of the frame header, the length of the subframe, and the multiplex frame association parameter in the frame header, error correction bytes are added to the header to protect the important information of the header.
  • Figure 2 shows the structure of a multiplex subframe.
  • the multiplexing frame includes a plurality of multiplexed subframes, and the header of the multiplexed subframe also includes a header length of the multiplexed subframe, a video data segment indication, an audio data segment indication, an auxiliary data segment indication, and the like.
  • Figure 3 shows the structure of the extension area of the multiplex sub-frame header.
  • the header of the multiplex subframe further includes an extension field, and important information such as the length of the video data segment of the multiplex subframe, the length of the audio data segment, and the length of the attached data segment are placed in the extension field.
  • a broadcast channel frame of a mobile multimedia broadcast is composed of a plurality of multiplexed frames, and a multiplexed frame is composed of a multiplexed frame header, a multiplexed payload, and a padding.
  • the multiplexed payload is composed of multiplexed subframes, and the padding portion is composed of protection information of the next frame.
  • the padding portion of the multiplex frame 0 is the protection information in the multiplex frame 1
  • the padding portion of the multiplex frame 1 is multiplexed.
  • the protection information in frame 2 is the protection information in the multiplex frame 3, and so on.
  • Figure 5 shows the padding structure of the multiplex frame.
  • the padding portion of the tail of the multiplex frame is composed of a multiplexed frame header of the next frame and a frame header of the multiplexed subframe, and may also be part information of the frame header of the next frame and partial information of the multiplexed subframe frame header.
  • the composition for example, extracts the length information portion in the next frame multiplex frame and the multiplex subframe, and transmits it in the padding portion of the frame.
  • the multimedia broadcast terminal puts the padding portion of the multiplex frame into the buffer.
  • the header information in the multiplex frame and the information buffered in the buffer can be used for comparison, when the header information of the multiplex frame is found If there is an error, the buffered multiplexed frame header information may be used for demultiplexing processing; the multimedia broadcast channel may also provide channel error indication information, and when the multimedia broadcast terminal finds that the multiplex frame has an error during transmission, timely The demultiplexing process is performed by using the multiplexed frame header information in the buffer to shield the error in the transmission, thereby improving the fault tolerance of the system.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A method for fault tolerating in the mobile multimedia broadcast system, comprises (1) recording the protection information of each multiplexing frame in the header of the multiplexing frame of the mobile multimedia broadcast; (2) adding a filling to each multiplexing frame, and the filling comprises the protection information of the next multiplexing frame; (3) when the multimedia broadcast terminal receives a multiplexing frame, the filling component of the multiplexing frame is buffered in the buffer in order to be used by next multiplexing frame. When the terminal receives the next multiplexing frame, the header information of the next multiplexing frame is compared to the buffered information in the buffer. When the error is found in the header information of the multiplexing frame, the buffered protection information of the multiplexing frame is used to carry the de-multiplexing process, so the fault tolerating capability of the system is improved.

Description

一种移动多某体广播系统的容错方法 技术领域 本发明属于移动多媒体广播或手机电视技术领域，特别涉及到一种实现移 动多媒体广播系统的容错方法。 背景技术 移动多媒体广播是近年来兴起的一种多媒体播放技术。 通过手持的终端， 在高速移动的情况下， 可以观看电视。 终端通过无线协议， 接收到节目单， 并 可以选择自己有权利收看的频道， 从而可以接受选择频道的多媒体数据， 实现 在移动终端上看电视。 移动多媒体广播的音视频数据都按帧的方式封装，如果帧中的一个部分出 错， 特别是一些重要的数据， 如长度信息， 将导致错误在整个帧中扩散， 导致 帧中数据不能正确解码， 将严重影响用户的收看。 移动多媒体广播系统是通过 无线频道或者卫星频道传送音视频数据的， 由于这种空中无线传送的特性， 传 送的数据容易受到各种干扰， 导致传送信息出错。 因此移动多媒体广播系统中 应采用一定的方法来纠错， 减少传送系统的误码率， 实现终端的良好接收， 让 用户可以体 理想的收看效果。 发明内容 本发明的目的就在于提供一种移动多媒体广播系统的容错方法，增加系统 的纠错能力， 提高多媒体广播系统的容错能力， 让用户体验更好的收看效果。 本发明的技术方案如下： 一种移动多媒体广播系统的容错方法， 包括以下步骤：  FIELD OF THE INVENTION The present invention relates to the field of mobile multimedia broadcast or mobile TV technology, and in particular to a fault tolerant method for implementing a mobile multimedia broadcast system. BACKGROUND OF THE INVENTION Mobile multimedia broadcasting is a multimedia playback technology that has emerged in recent years. With a handheld terminal, you can watch TV at high speeds. The terminal receives the program list through the wireless protocol, and can select the channel that has the right to watch, so that the multimedia data of the selected channel can be accepted, and the television is watched on the mobile terminal. The audio and video data of the mobile multimedia broadcast is encapsulated in a frame manner. If a part of the frame is in error, especially some important data, such as the length information, the error will spread in the entire frame, and the data in the frame cannot be correctly decoded. Will seriously affect the user's viewing. The mobile multimedia broadcasting system transmits audio and video data through a wireless channel or a satellite channel. Due to the characteristics of such airborne wireless transmission, the transmitted data is susceptible to various interferences, resulting in transmission of information errors. Therefore, a certain method should be adopted in the mobile multimedia broadcasting system to correct errors, reduce the bit error rate of the transmission system, and achieve good reception of the terminal, so that the user can enjoy an ideal viewing effect. SUMMARY OF THE INVENTION An object of the present invention is to provide a fault tolerant method for a mobile multimedia broadcast system, which increases the error correction capability of the system, improves the fault tolerance of the multimedia broadcast system, and allows the user to experience a better viewing effect. The technical solution of the present invention is as follows: A fault tolerance method for a mobile multimedia broadcast system, comprising the following steps:
( 1 )在移动多媒体广播每一个复用帧的帧头中记载本复用帧的保护信息； (1) recording protection information of the multiplex frame in a frame header of each multiplex frame of the mobile multimedia broadcast;
( 2 ) 在每一个复用帧的尾部增加一个填充， 该填充包括下一复用帧的保 护信息； ( 3 ) 多媒体广播终端接收到一个复用帧时， 将该复用帧的填充部分放入 緩冲区中进行緩存， 供下一复用帧使用。 上述步骤 （3 ) 进一步可包括： 终端收到下一个复用帧时， 将下一复用帧 中的头部信息和緩冲器中緩存的信息进行比较， 当发现复用帧中的头部信息出 现错误时， 采用緩存的复用帧头部信息进行解复用处理； 或者多媒体广播信道 提供信道错误指示信息， 当本复用帧在传送过程中有错误时， 多媒体广播终端 使用緩冲区中的复用帧头部信息进行解复用处理。 上述步骤 （1 ) 中， 每个复用帧中包括多个复用子帧， 在每一个复用子帧 的子帧头中也记载本复用子帧的保护信息； 相应地， 在所述步骤 （2 ) 中， 所 述填充中可包 4舌下一复用子帧的呆护信息。 上述复用帧的保护信息包括帧头的长度、子帧的长度、复用帧关联参数等 信息。 上述复用子帧的保护信息包括复用子帧的头长度、视频数据段指示、音频 数据段指示、附属数据段指示等信息； 复用子帧的保护信息还包含有扩展字段， 扩展字段中包含有视频数据段长度、 音频数据段长度、 附属数据段长度。 所述填充中包括下一复用帧的帧头的全部或部分信息，以及下一复用子帧 的子帧头的全部或部分信 , 。 本发明提供的方法属于一种适合在广播网络中使用的媒体数据容错方法， 4巴复用帧的帧头中的重要信息重传， 当其中一帧的帧头信息出现错误， 可利用 緩存的上一帧中的填充信息进行解码， 从而增强了系统的纠错能力， 提高了多 媒体广播系统的容错能力， 可以让用户体验更好的收看效果。 附图说明 图 1所示为复用帧头的结构 图 2所示为复用子帧的结构 图 3所示为复用子帧头的扩展区的结构 图 4所示为一个复用帧的结构 图 5所示为复用帧的填充结构 具体实施方式 图 1所示为复用帧头的结构。 在移动多媒体广播系统中， 视频数据、 音频 数据、 附属数据封装在一起成为一个帧的有效负荷， 加上长度信息和媒体参数 等内容组成帧头成为完整的复用帧在移动多媒体广播系统中传送。 由于帧头中 有帧头的长度、 子帧的长度、 复用帧关联参数等重要内容， 因此在包头中增加 纠错字节来保护头部的重要信息。 图 2所示为复用子帧的结构。复用帧中包括多个复用子帧， 复用子帧的头 中也包含有复用子帧的头长度、 视频数据段指示、 音频数据段指示、 附属数据 段指示等。 图 3所示为复用子帧头的扩展区的结构。复用子帧的头中还包含有扩展字 段， 复用子帧的视频数据段长度、 音频数据段长度、 附属数据段长度等重要信 息放在该扩展字段中。 复用帧和复用子帧的长度和指示等重要信息，在多媒体广播系统的无线传 送通道中如果受到干扰而没有恢复， 将导致复用帧或者复用子帧错误定界， 使 接收到的数据无法正确解码， 影响音视频的解码效果， 在视频上会呈现马赛克 现象， 音频中有噪声。 为解决这个问题， 将这些重要的信息附加在上一个复用 帧的尾部传送。 图 4所示为一个复用帧的结构。移动多媒体广播的广播信道帧由多个复用 帧组成， 而复用帧由复用帧头、 复用净荷和填充組成。 其中复用净荷由复用子帧组成，填充部分由下一帧的保护信息组成， 复用 帧 0的填充部分是复用帧 1中的保护信息， 复用帧 1的填充部分是复用帧 2中 的保护信息， 复用帧 2的填充部分是复用帧 3中的保护信息， 依次类推。 图 5所示为复用帧的填充结构。本复用帧的尾部的填充部分由下一帧的复 用帧头和复用子帧的帧头组成， 也可以是下一帧的帧头的部分信息和复用子帧 帧头的部分信息组成， 例如提取下一帧复用帧和复用子帧中的长度信息部分， 在本帧的填充部分中传送。 多媒体广播终端接收到复用帧时，将复用帧的填充部分放入緩冲区中进行 緩存， 供下一个复用帧使用， 收到下一个复用帧时可以利用复用帧中的头部信 息和緩冲器中緩存的信息进行比较， 当发现本复用帧头部信息因为各种干扰而 出现错误， 可采用緩存的复用帧头部信息进行解复用处理； 多媒体广播信道还 可提供信道错误指示信息， 当多媒体广播终端发现本复用帧在传送过程中有错 误时， 及时使用緩沖区中的复用帧头部信息进行解复用处理， 屏蔽传送中的误 码， 从而提高系统的容错能力。 (2) adding a padding at the end of each multiplex frame, the padding including protection information of the next multiplex frame; (3) When the multimedia broadcast terminal receives a multiplex frame, the padding portion of the multiplex frame is buffered for use in the next multiplex frame. The foregoing step (3) may further include: when the terminal receives the next multiplex frame, comparing the header information in the next multiplex frame with the information buffered in the buffer, and discovering the header information in the multiplex frame. When an error occurs, the buffered multiplexed frame header information is used for demultiplexing processing; or the multimedia broadcast channel provides channel error indication information. When the multiplex frame has an error during transmission, the multimedia broadcast terminal uses the buffer. The multiplexed frame header information is subjected to demultiplexing processing. In the above step (1), each multiplex frame includes a plurality of multiplex subframes, and the protection information of the multiplex subframe is also recorded in the subframe header of each multiplex subframe; accordingly, in the In the step (2), the padding information of the next multiplex subframe may be included in the padding. The protection information of the multiplex frame includes information such as the length of the frame header, the length of the subframe, and the multiplex frame association parameter. The protection information of the foregoing multiplex subframe includes information such as a header length of the multiplex subframe, a video data segment indication, an audio data segment indication, an auxiliary data segment indication, and the like; the protection information of the multiplex subframe further includes an extension field, and the extension field Contains the length of the video data segment, the length of the audio data segment, and the length of the attached data segment. The padding includes all or part of the information of the frame header of the next multiplex frame, and all or part of the message of the subframe header of the next multiplex subframe. The method provided by the present invention belongs to a media data fault tolerance method suitable for use in a broadcast network, and retransmits important information in a frame header of a 4 bar multiplexed frame. When an error occurs in a frame header information of one frame, a cached The padding information in the previous frame is decoded, thereby enhancing the error correction capability of the system, improving the fault tolerance of the multimedia broadcasting system, and allowing the user to experience a better viewing effect. BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a structure of a multiplexed frame header. FIG. 2 shows a structure of a multiplexed subframe. FIG. 3 shows a structure of an extended region of a multiplexed subframe header. FIG. 4 shows a multiplexed frame. Structure FIG. 5 shows a padding structure of a multiplexed frame. FIG. 1 shows a structure of a multiplexed frame header. In the mobile multimedia broadcasting system, the video data, the audio data, and the ancillary data are encapsulated together into a frame payload, and the content of the length information and the media parameters are combined to form a frame header to be a complete multiplex frame transmitted in the mobile multimedia broadcast system. . Since there are important contents such as the length of the frame header, the length of the subframe, and the multiplex frame association parameter in the frame header, error correction bytes are added to the header to protect the important information of the header. Figure 2 shows the structure of a multiplex subframe. The multiplexing frame includes a plurality of multiplexed subframes, and the header of the multiplexed subframe also includes a header length of the multiplexed subframe, a video data segment indication, an audio data segment indication, an auxiliary data segment indication, and the like. Figure 3 shows the structure of the extension area of the multiplex sub-frame header. The header of the multiplex subframe further includes an extension field, and important information such as the length of the video data segment of the multiplex subframe, the length of the audio data segment, and the length of the attached data segment are placed in the extension field. Important information such as the length and indication of the multiplexed frame and the multiplexed subframe, if not interfered in the wireless transmission channel of the multimedia broadcast system, will result in erroneous delimitation of the multiplexed frame or the multiplexed subframe, so that the received The data cannot be decoded correctly, affecting the decoding effect of audio and video. The mosaic phenomenon will appear on the video, and there is noise in the audio. To solve this problem, attach this important information to the end of the last multiplex frame. Figure 4 shows the structure of a multiplex frame. A broadcast channel frame of a mobile multimedia broadcast is composed of a plurality of multiplexed frames, and a multiplexed frame is composed of a multiplexed frame header, a multiplexed payload, and a padding. The multiplexed payload is composed of multiplexed subframes, and the padding portion is composed of protection information of the next frame. The padding portion of the multiplex frame 0 is the protection information in the multiplex frame 1, and the padding portion of the multiplex frame 1 is multiplexed. The protection information in frame 2, the padding portion of the multiplex frame 2 is the protection information in the multiplex frame 3, and so on. Figure 5 shows the padding structure of the multiplex frame. The padding portion of the tail of the multiplex frame is composed of a multiplexed frame header of the next frame and a frame header of the multiplexed subframe, and may also be part information of the frame header of the next frame and partial information of the multiplexed subframe frame header. The composition, for example, extracts the length information portion in the next frame multiplex frame and the multiplex subframe, and transmits it in the padding portion of the frame. When receiving the multiplex frame, the multimedia broadcast terminal puts the padding portion of the multiplex frame into the buffer. Cache, used for the next multiplex frame, when the next multiplex frame is received, the header information in the multiplex frame and the information buffered in the buffer can be used for comparison, when the header information of the multiplex frame is found If there is an error, the buffered multiplexed frame header information may be used for demultiplexing processing; the multimedia broadcast channel may also provide channel error indication information, and when the multimedia broadcast terminal finds that the multiplex frame has an error during transmission, timely The demultiplexing process is performed by using the multiplexed frame header information in the buffer to shield the error in the transmission, thereby improving the fault tolerance of the system.

Claims

权 利 要 求 书 一种移动多媒体广播系统的容错方法， 包括以下步骤： The present invention provides a fault tolerant method for a mobile multimedia broadcast system, comprising the steps of:
( 1 ) 在移动多媒体广播每一个复用帧的帧头中记载本复用帧的保 护信息；  (1) recording the protection information of the multiplex frame in the frame header of each multiplex frame of the mobile multimedia broadcast;
( 2 ) 在每一个复用帧的尾部增加一个填充， 该填充包括下一复用 帧的保护信息；  (2) adding a padding at the end of each multiplex frame, the padding including protection information of the next multiplex frame;
( 3 ) 多媒体广插 ^终端接收到一个复用帧时， 将该复用帧的填充部 分放入緩沖区中进行緩存， 供下一复用帧使用。 根据权利要求 1所述的方法， 其特征在于， 所述步骤（ 1 ) 中， 每个复用 帧中包括多个复用子帧， 在每一个复用子帧的子帧头中记载本复用子帧 的保护信息。 根据权利要求 2所述的方法， 其特征在于， 所述步骤（2 ) 中， 所述填充 中进一步包括下一复用子帧的保护信息。 根据权利要求 1所述的方法， 其特征在于， 所述复用帧的保护信息包括 帧头的长度、 子帧的长度、 复用帧关联参数。 根据权利要求 2所述的方法， 其特征在于， 所述复用子帧的保护信息包 括复用子帧的头长度、 视频数据段指示、 音频数据段指示、 附属数据段 指示。 根据权利要求 2所述的方法， 其特征在于， 所述复用子帧的保护信息还 包含有扩展字段， 扩展字段中包含有视频数据段长度、音频数据段长度、 附属数据段长度。 根据权利要求 1所述的方法， 其特征在于， 所述填充包括下一复用帧的 帧头的全部或部分 4言息。 根据权利要求 2所述的方法， 其特征在于， 所述填充包括下一复用子帧 的子帧头的全部或部分^ ί言息。 根据权利要求 1或 3所述的方法， 其特征在于， 所述步驟（ 3 )进一步包 括： 终端收到下一个复用帧时， 将下一复用帧中的头部信息和緩冲器中 緩存的信息进行比较， 当发现复用帧中的头部信息出现错误时， 釆用緩 存的复用帧头部信息进行解复用处理。 根据权利要求 1或 3所述的方法， 其特征在于， 所述步骤（3 )进一步包 括： 多媒体广 4番信道提供信道错误指示信息， 当本复用帧在传送过程中 有错误时， 多媒体广播终端使用緩冲区中的复用帧头部信息进行解复用 处理。 (3) When the multimedia wide insertion terminal receives a multiplex frame, the padding portion of the multiplex frame is buffered for use in the next multiplex frame. The method according to claim 1, wherein in the step (1), each multiplex frame includes a plurality of multiplex subframes, and the multiplex subframe in each multiplex subframe records the complex Use the protection information of the subframe. The method according to claim 2, wherein in the step (2), the filling further includes protection information of a next multiplex subframe. The method according to claim 1, wherein the protection information of the multiplex frame comprises a length of a frame header, a length of a subframe, and a multiplex frame association parameter. The method according to claim 2, wherein the protection information of the multiplex subframe includes a header length of the multiplex subframe, a video data segment indication, an audio data segment indication, and an auxiliary data segment indication. The method according to claim 2, wherein the protection information of the multiplex subframe further includes an extension field, where the extension field includes a video data segment length, an audio data segment length, and an auxiliary data segment length. The method according to claim 1, wherein the filling comprises all or part of the message header of the next multiplex frame. The method according to claim 2, wherein the filling comprises all or part of a subframe header of a next multiplex subframe. The method according to claim 1 or 3, wherein the step (3) further comprises: when the terminal receives the next multiplex frame, buffering the header information in the next multiplex frame and the buffer The information is compared. When an error occurs in the header information in the multiplex frame, the buffered multiplexed frame header information is used for demultiplexing. The method according to claim 1 or 3, wherein the step (3) further comprises: providing a channel error indication information by using a multimedia wide channel, and when the multiplex frame has an error during transmission, the multimedia broadcast The terminal performs demultiplexing processing using the multiplexed frame header information in the buffer.
PCT/CN2006/003763 2006-10-16 2006-12-30 A method for fault tolerating in the mobile multimedia broadcast system WO2008046268A1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2338245B1 (en) * 2008-10-20 2019-10-16 InterDigital CE Patent Holdings Method for transmitting and receiving signalling information

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101938640A (en) * 2009-06-29 2011-01-05 中兴通讯股份有限公司 Method for improving broadcast channel frame utilization factor, application method of filing part and device
CN105764147B (en) * 2016-02-05 2019-11-08 北京佰才邦技术有限公司 The acquisition methods and terminal of the length information of subframe

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1081302A (en) * 1992-04-25 1994-01-26 Gpt有限公司 Data communication monitoring system
CN1464654A (en) * 2002-06-12 2003-12-31 电子科技大学 Method for controlling bit after frame end insertion in OFDM communication system
US6885679B1 (en) * 2000-09-29 2005-04-26 Nortel Networks Limited System and method for layer 2 frame delineation recovery
CN1736050A (en) * 2002-11-08 2006-02-15 因芬尼昂技术股份公司 Method of error control coding and decoding of messages in a packet-based data transmission system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100416996B1 (en) * 1999-05-10 2004-02-05 삼성전자주식회사 Variable-length data transmitting and receiving apparatus in accordance with radio link protocol for a mobile telecommunication system and method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1081302A (en) * 1992-04-25 1994-01-26 Gpt有限公司 Data communication monitoring system
US6885679B1 (en) * 2000-09-29 2005-04-26 Nortel Networks Limited System and method for layer 2 frame delineation recovery
CN1464654A (en) * 2002-06-12 2003-12-31 电子科技大学 Method for controlling bit after frame end insertion in OFDM communication system
CN1736050A (en) * 2002-11-08 2006-02-15 因芬尼昂技术股份公司 Method of error control coding and decoding of messages in a packet-based data transmission system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2338245B1 (en) * 2008-10-20 2019-10-16 InterDigital CE Patent Holdings Method for transmitting and receiving signalling information

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