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    • 17. 发明公开
    • PHYSICAL LAYER AND DATA LINK LAYER SIGNALLING IN DIGITAL VIDEO BROADCAST PREAMBLE SYMBOLS
    • 物理层和数据链路层信令的前导符号数字视频广播
    • EP2235856A1
    • 2010-10-06
    • EP09705294.8
    • 2009-01-12
    • Nokia Corporation
    • JOKELA, TeroVESMA, JussiPEKONEN, Harri
    • H04H20/57H04H60/90H04N7/24
    • H04L5/0053H04H60/07H04L1/0057H04L1/0071H04L5/0007
    • Aspects of the invention are directed to physical layer and data link layer signaling in digital video broadcast preamble symbols. Embodiments are directed to distributing physical layer pre-signalling data among preamble symbols. If physical layer data is larger than a predetermined number of preamble symbols, then excess physical layer data is written to data symbols immediately following the preamble symbols in top-down order symbol by symbol or the predetermined number of preamble symbols is increased. If physical layer data is not larger than the predetermined number of preamble symbols such that there is excess preamble symbol space, physical layer pipe 0 data comprising link layer signaling and notification data is carried in the excess preamble symbols or the excess preamble symbols are left empty. Different permutation rules may be used to frequency interleave odd-numbered versus even-numbered orthogonal frequency division multiplexing symbols.
    • 本发明的方面涉及在数字视频广播前导码符号的物理层和数据链路层信令。 实施例涉及分配前导码符号中的物理层信令预数据。 如果物理层数据大于前导码符号的预定数量大,则过量的物理层数据被写入到立即继符号或前同步码符号的预定数量的自上而下的顺序符号的前导符号增加数据符号。 如果物理层数据不低于寻求thatthere前导码符号的预定数目较大是过量前导符号空间,物理层管道0数据包括链路层信令和通知数据在过量前导码符号被携带或过量的前导码符号是空 , 可用于频率不同的排列规则交织奇数与偶数编号的正交频分复用符号。