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    • 9. 发明授权
    • Physical layer and data link layer signalling in digital video broadcast preamble symbols
    • 数字视频广播前导符号中的物理层和数据链路层信令
    • US08248910B2
    • 2012-08-21
    • US12021864
    • 2008-01-29
    • Tero JokelaJussi VesmaHarri J. Pekonen
    • Tero JokelaJussi VesmaHarri J. Pekonen
    • H04J11/00H04J1/00H04J3/24H04B7/208H04J3/12
    • 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.
    • 本发明的方面涉及数字视频广播前同步码符号中的物理层和数据链路层信令。 实施例涉及在前导符号之间分配物理层预信令数据。 如果物理层数据大于预定数量的前导码符号,则将多余的物理层数据以符号自上而下的顺序排列在前导码符号之后的数据符号上,或增加预定数目的前导符号。 如果物理层数据不大于预定数量的前导码符号,使得存在超量的前导码符号空间,则包含链路层信令和通知数据的物理层管道0数据在多余的前导码符号中被携带,或者将剩余的前导码符号留空 。 可以使用不同的置换规则来对奇数编号与偶数编号的正交频分复用符号进行频率交织。
    • 10. 发明申请
    • Transmission Enhancements for Physical Layer Transmission
    • 物理层传输的传输增强
    • US20100086087A1
    • 2010-04-08
    • US12244404
    • 2008-10-02
    • Harri PekonenJussi VesmaTero Jokela
    • Harri PekonenJussi VesmaTero Jokela
    • H03D1/04
    • H04L1/004H04L1/007H04L1/0072H04L1/0079H04L1/0086
    • Aspects of the invention provide apparatuses, computer media, and methods for supporting the broadcast of signaling data over a network. Error detection and protection as well as modulation mechanisms enhance the flexibility and robustness of signaling data for digital video broadcasting. A first error detection code for a first portion of signaling data and a second error detection code for a second portion of the signaling data are determined. The signaling data is combined with data and transmitted as a digital stream through a digital terrestrial television broadcasting system. A portion of the signaling data may include a configurable part and a dynamic part or may include different dynamic parts of the signaling data. Different portions of the signaling data may be separately modulated and encoded. A portion of the signaling data may be divided over a plurality of code words and evenly distributed over a transmission period.
    • 本发明的方面提供了用于通过网络支持信令数据的广播的装置,计算机媒体和方法。 错误检测和保护以及调制机制增强了数字视频广播信令数据的灵活性和鲁棒性。 确定用于信令数据的第一部分的第一错误检测码和用于信令数据的第二部分的第二错误检测码。 信令数据与数据组合,并通过数字地面电视广播系统作为数字流传输。 信令数据的一部分可以包括可配置部分和动态部分,或者可以包括信令数据的不同动态部分。 信令数据的不同部分可以被单独调制和编码。 信令数据的一部分可以在多个码字上划分,并在传输周期内均匀分布。