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    • 8. 发明授权
    • Method and system for synchronized mapping of data packets in an ATSC data stream
    • ATSC数据流中数据包同步映射的方法和系统
    • US08774069B2
    • 2014-07-08
    • US12468938
    • 2009-05-20
    • Norman HerzogJens Rusch-IhweMichael SimonMichael Kramer
    • Norman HerzogJens Rusch-IhweMichael SimonMichael Kramer
    • H04B7/00H04N21/2381H04N21/61H04L27/02H04L1/00H04H20/57
    • H04L27/02H04H20/57H04L1/0041H04N21/2381H04N21/6131
    • Mapping data packets of a first data stream into data fields of a second data stream at several transmitters is provided by generating a first data stream with first data packets containing data associated with stationary receivers and second data packets containing data associated with mobile receivers in a head-end, where second data packets at the start of a group of consecutively transmitted second data packets contain placeholders into which signaling information is filled. A first data stream is transmitted from the head-end to each transmitter. Each transmitter extracts signaling information from the second data packets indicating in which data slot and in which data sub-frame of a received data frame the second data packet is transferred. Each transmitter inserts synchronization data in a specific data packet in each data slot containing second data packets. The first and second data packets are mapped consecutively into the second data stream.
    • 通过产生具有第一数据分组的第一数据分组来提供第一数据流的数据分组到多个发射机的第二数据流的数据字段,第一数据分组包含与固定接收机相关联的数据和包含与头部中的移动接收机相关联的数据的第二数据分组 -end,其中在一组连续发送的第二数据分组的开始处的第二数据分组包含填充信令信息的占位符。 第一数据流从头端发送到每个发射机。 每个发射机从第二数据分组中提取信令信息,指示在哪个数据时隙中和在哪个数据子帧中接收数据帧的第二数据分组被传送。 每个发射机在包含第二数据分组的每个数据时隙中的特定数据分组中插入同步数据。 第一和第二数据包被连续地映射到第二数据流中。