ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYNCHRONIZATION
    31.
    发明申请
    ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYNCHRONIZATION 审中-公开
    正交频分多址同步

    公开(公告)号:WO2009056933A2

    公开(公告)日:2009-05-07

    申请号:PCT/IB2008/002821

    申请日:2008-10-17

    Abstract: Embodiments are directed to first and second OFDM pilot symbols. The first and second pilot symbols may have first and second sets, respectively, of allowed, forbidden, and active carrier frequencies. The second sets of carrier frequencies may be formed by frequency shifting the respective first sets by a predetermined frequency, such as the frequency difference between adjacent carriers. An embodiment is directed to frequency translating part of a first received pilot symbol by one carrier interval in a first direction, frequency translating part of a second received pilot symbol by one carrier interval in a second direction that is opposite from the first direction, and forming a correlation by multiplying the frequency translated parts of the first and second pilot symbols by complex conjugates of parts of the pilot symbols upon which frequency translation has not been performed, and summing the multiplication results.

    Abstract translation: 实施例涉及第一和第二OFDM导频符号。 第一和第二导频符号可以分别具有允许,禁止和有效载波频率的第一和第二组。 第二组载波频率可以通过将相应的第一组频移到预定频率(例如相邻载波之间的频率差)来形成。 实施例涉及将第一接收导频符号的一部分频率转换为第一方向上的一个载波间隔,将第二接收导频符号的一部分频率平移到与第一方向相反的第二方向上的一个载波间隔,以及形成 通过将第一和第二导频符号的频率转换部分乘以不进行频率转换的导频符号的部分的复共轭并将乘法结果求和来进行相关。

    DIGITAL BROADCAST SIGNALING METADATA
    32.
    发明申请

    公开(公告)号:WO2009053816A3

    公开(公告)日:2009-04-30

    申请号:PCT/IB2008/002817

    申请日:2008-10-17

    Abstract: Embodiments are directed to transmitting Ll pre-signaling information with predetermined modulation and code rate such that Ll pre-signaling information can be received without preliminary knowledge on the network. Ll pre-signaling information makes it possible to receive the Ll signaling information, data link layer information, and notification data that may have configurable code rates and modulation. Therefore, Ll pre-signaling information can be thought of as signaling metadata (i.e., information about other signaling information). Ll signaling is divided into pre-signaling and signaling parts. The pre-signaling part includes parameters used for receiving the Ll signaling information. Ll pre-signaling signaling enables the receiver to receive the signaling itself (Ll signaling and data link layer information) by informing the receiver about the type of modulation, coding, and the like, used to transmit the Ll signaling, data link layer, and notification information.

    MAPPING OF NETWORK INFORMATION BETWEEN DATA LINK AND PHYSICAL LAYER
    33.
    发明申请
    MAPPING OF NETWORK INFORMATION BETWEEN DATA LINK AND PHYSICAL LAYER 审中-公开
    数据链接与物理层之间网络信息的映射

    公开(公告)号:WO2009092845A1

    公开(公告)日:2009-07-30

    申请号:PCT/FI2009/000008

    申请日:2009-01-12

    CPC classification number: H04L5/0053 H04L5/0094

    Abstract: Aspects of the invention are directed to a cell-frequency-link descriptor configured to map network-specific parameters with time frequency slicing (TFS) information in a digital video broadcast system. The cell-frequency-link descriptor may include fields that provide a mapping between a cell identifier, a TFS group identifier, a bandwidth, a guard interval, a transmission mode, and a frequency. The fields may provide a mapping between cells, frequencies, TFS groups, related guard intervals, bandwidths, and transmission modes for multiple cells within the digital video broadcast system. The fields may include: a cell identifier field, a TFS-group identifier field, a bandwidth field, a guard interval field, a transmission mode field, a frequency field, a cell identifier extension field, and a transposer frequency field.

    Abstract translation: 本发明的方面涉及一种细胞 - 频率 - 链路描述符,其被配置为在数字视频广播系统中将具有时间频率分割(TFS)信息的网络特定参数映射。 小区 - 频率 - 链路描述符可以包括提供小区标识符,TFS组标识符,带宽,保护间隔,传输模式和频率之间的映射的字段。 这些字段可以提供数字视频广播系统内的多个小区的小区,频率,TFS组,相关的保护间隔,带宽和传输模式之间的映射。 这些字段可以包括:小区标识符字段,TFS组标识符字段,带宽字段,保护间隔字段,传输模式字段,频率字段,小区标识符扩展字段和转置器频率字段。

    METHOD, SYSTEM AND RECEIVER IN RECEIVING A MULTI-CARRIER TRANSMISSION
    34.
    发明申请
    METHOD, SYSTEM AND RECEIVER IN RECEIVING A MULTI-CARRIER TRANSMISSION 审中-公开
    接收多载波传输的方法,系统和接收机

    公开(公告)号:WO2005029802A1

    公开(公告)日:2005-03-31

    申请号:PCT/FI2003/000690

    申请日:2003-09-22

    CPC classification number: H04L27/2655 H04L27/2679

    Abstract: Mobile handheld terminals receiving DVB transmission require relatively low power consumption and TDM based transmission can be used to reduce power of the terminals. In order find pilot carrier position at least two symbols are accessed which are adapted to establish a correspondence pattern for pilot carriers in a matrix of the at least two symbols. Carriers of the first symbol are correlated with the corresponding carriers of the second symbol within the matrix for determining a correlation maximum for indicating a pilot carrier position.

    Abstract translation: 接收DVB传输的移动手持终端需要相对较低的功耗,并且可以使用基于TDM的传输来降低终端的功率。 为了找到导频载波位置,访问至少两个符号,其适于建立至少两个符号的矩阵中的导频载波的对应模式。 第一符号的载波与矩阵内的第二符号的相应载波相关,以确定用于指示导频载波位置的相关最大值。

    METHOD FOR SIGNALLING TIME-SLICING PARAMETERS IN THE SERVICE INFORMATION
    35.
    发明申请
    METHOD FOR SIGNALLING TIME-SLICING PARAMETERS IN THE SERVICE INFORMATION 审中-公开
    在服务信息中信号时间延迟参数的方法

    公开(公告)号:WO2004102964A1

    公开(公告)日:2004-11-25

    申请号:PCT/IB2004/050638

    申请日:2004-05-11

    CPC classification number: H04L1/0057 H04L1/0053 H04L1/0075 H04L12/66

    Abstract: A terrestrial digital video broadcasting (DVB-T) network is used to transmit IP datagrams to receiving devices using multiprotocol encapsulation (MPE). MPE datagram sections and, if forward error correction (FEC) is used, MPE-FEC datagram sections are transmitted in time-sliced bursts. Time slicing parameters specifying a minimum time between bursts and bit rate output of a receiving device time slicing buffer can be used to help improve power saving and improve quality of service.

    Abstract translation: 地面数字视频广播(DVB-T)网络用于使用多协议封装(MPE)向接收设备发送IP数据报。 MPE数据报段,如果使用前向纠错(FEC),MPE-FEC数据报段将以时间片断的脉冲串发送。 指定接收设备时间片缓冲器的脉冲串和比特率输出之间的最小时间的时间片参数可用于帮助改善节电并提高服务质量。

    TRANSMISSION OF PHYSICAL LAYER SIGNALING IN A BROADCAST SYSTEM
    36.
    发明申请
    TRANSMISSION OF PHYSICAL LAYER SIGNALING IN A BROADCAST SYSTEM 审中-公开
    传播系统中物理层信号的传输

    公开(公告)号:WO2010100575A1

    公开(公告)日:2010-09-10

    申请号:PCT/IB2010/050568

    申请日:2010-02-09

    Abstract: Aspects of the invention provide apparatuses, computer media, and methods for supporting the broadcast of extended signaling data over a network. With an aspect of the invention, all of the extended signaling data may be distributed over multiple data frames. With another aspect, only dynamic signaling redundancy data is distributed over different data frames, where systematic information (for example, configurable signaling data) is transmitted in accordance with traditional systems. In addition, backwards compatibility with traditional systems may be supported, in which extended signaling is contained in an extension field. Error correction code may be applied to the extended signaling in concert with different codes. With another aspect, only extended signaling is supported without backwards compatibility with traditional systems.

    Abstract translation: 本发明的各方面提供了用于通过网络支持扩展信令数据的广播的装置,计算机媒体和方法。 利用本发明的一个方面,所有扩展的信令数据可以分布在多个数据帧上。 另一方面,只有动态信令冗余数据分布在不同数据帧上,其中根据传统系统传输系统信息(例如,可配置信令数据)。 此外,可以支持与传统系统的向后兼容性,其中扩展信令包含在扩展字段中。 错误纠正码可以与不同的代码一起应用于扩展信令。 另一方面,仅支持扩展信令而不向后兼容传统系统。

    DIGITAL VIDEO BROADCAST SERVICE DISCOVERY
    37.
    发明申请
    DIGITAL VIDEO BROADCAST SERVICE DISCOVERY 审中-公开
    数字视频广播服务发现

    公开(公告)号:WO2009050552A2

    公开(公告)日:2009-04-23

    申请号:PCT/IB2008/002639

    申请日:2008-10-02

    Abstract: Embodiments are directed to binary phase shift key modulating a first pilot symbol according to a reference sequence, and differentially binary phase shift key modulating a second pilot symbols. The original reference sequence and the delayed differentially modulated sequence are then combined before performing an Inverse Fast Fourier Transform and inserting a guard interval. Receiver operations are an inverse of the transmitter operations, which were just discussed. The receiver does not have to know the reference sequence. Embodiments are directed to specifying a plurality of seeds that are bit patterns each having r bits not all of which have a value of zero, extending the seeds into respective sequences by applying to each seed a recurrence formula; and using one of the sequences as a comb sequence and using the sequences other than the comb sequence as binary phase shift keying patterns.

    Abstract translation: 实施例涉及根据参考序列调制第一导频符号的二进制相移键,以及调制第二导频符号的差分二进制相移键。 然后在执行快速傅立叶逆变换和插入保护间隔之前组合原始参考序列和延迟差分调制序列。 接收机操作是发射机操作的倒数,这些操作刚刚讨论过。 接收器不必知道参考序列。 实施例涉及指定多个种子,其是每个具有r位的位模式,并不都具有零值,通过向每个种子应用递推公式将种子延伸到各个序列中; 并使用序列之一作为梳状序列,并使用除了梳状序列以外的序列作为二进制相移键控模式。

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