Padding time-slice frames with useful data
    21.
    发明申请
    Padding time-slice frames with useful data 审中-公开
    填充有用数据的时间片帧

    公开(公告)号:US20070002871A1

    公开(公告)日:2007-01-04

    申请号:US11169685

    申请日:2005-06-30

    IPC分类号: H04L12/56 H04B7/212

    摘要: Provided are apparatuses and methods for padding a series of real-time service time-slice bursts with related non-real-time service data in a digital broadcast transmission system. Real-time services (e.g., streaming video) are formed into a series of bursts or slots as a single frame. Available capacity within each slot of the frame is filled using related non-real-time service data (e.g., a file download). Receivers may receive individual bursts from within the frame and/or may receive the entire frame in order to receive the related non-real-time service data.

    摘要翻译: 提供了一种用于在数字广播传输系统中用相关非实时业务数据填充一系列实时业务时间片突发的装置和方法。 实时服务(例如,流视频)被形成为一系列突发或时隙作为单个帧。 使用相关的非实时服务数据(例如,文件下载)来填充该帧的每个时隙内的可用容量。 接收机可以从帧内接收单个突发和/或可以接收整个帧以便接收相关的非实时业务数据。

    Adjusting data burst tranmission rates
    22.
    发明申请
    Adjusting data burst tranmission rates 失效
    调整数据突发传输率

    公开(公告)号:US20060211436A1

    公开(公告)日:2006-09-21

    申请号:US10561987

    申请日:2004-06-29

    IPC分类号: H04B7/00

    CPC分类号: H04H20/18 H04H20/33 H04W16/06

    摘要: A broadcast service for transmission to mobile terminals 10a-10c in a cellular communication system comprises a series of burst B1-B5 of data packets in a transport stream 7. Where the available data transmission rates in cells C1, C2 are unequal, the transport stream 7a for transmission to the cell C1 with the higher data transmission rate is modified by incorporating additional payload L1-L5 in each burst in the series, for example by appending the additional payload to each burst or by interleaving the burst data and additional payload (FIG. 7) so that a time interval t; between adjacent bursts B1-B5 is the same in both cells C1, C2. Therefore, start times of the transmission of each burst B1-B5 in both cells C1, C2 are synchronised, i.e. the transmission of each burst B1-B5 begins simultaneously in both cells C1 or a time interval to between the start of transmission of each burst in cells C1, C2 is fixed (FIG. 5). This allows a mobile terminal 10b operating in a selective data reception mode to continue receiving a service without disruption when moving across a cell boundary 11. The incorporation of the additional payload may be performed by a digital broadcast head-end 26 or by an apparatus 13 associated with a transmitter 8 serving a cell C1.

    摘要翻译: 用于在蜂窝通信系统中传输到移动终端10a-10c的广播服务包括传输流7中的数据分组的一系列突发B 1 -B 5。 在小区C 1,C 2中的可用数据传输速率不相等的情况下,用于传输到具有较高数据传输速率的小区C 1的传输流7a被修改为在每个突发中并入附加有效载荷L 1 -L 5 序列,例如通过将附加有效载荷附加到每个突发或通过交织突发数据和附加有效载荷(图7),使得时间间隔t; 在相邻突发B 1 -B 5之间在单元C 1,C 2中相同。 因此,两个小区C 1,C 2中的每个突发B 1 -B 5的传输的开始时间是同步的,即每个突发B 1 -B 5的传输在两个小区C 1中同时开始,或者在两个小区C 1, 单元格C 1,C 2中的每个突发的发送开始是固定的(图5)。 这允许以选择性数据接收模式操作的移动终端10b在移动通过小区边界11时继续接收服务而不中断。 附加有效负载的并入可以由数字广播前端26或与服务于小区C 1的发射机8相关联的装置13来执行。

    Phase shifted time slice transmission to improve handover

    公开(公告)号:US20060126566A1

    公开(公告)日:2006-06-15

    申请号:US11345821

    申请日:2006-02-02

    申请人: Harri Pekonen

    发明人: Harri Pekonen

    IPC分类号: H04Q7/00

    摘要: The present invention provides methods and apparatus for a wireless system broadcasting a plurality of data packets to at least one wireless terminal. The wireless system comprises a plurality of base stations that interfaces to a backbone network in order to receive the plurality of data packets from a service source. Data packets are sent to a wireless terminal by a first base station transmitting a first channel burst and by a second base station transmitting a second channel burst, in which corresponding time offsets of the channel bursts, as characterized by amounts phase shifts, are different. Consequently, when the wireless terminal executes a handover from the first base station to the second base station, a probability that some of the data packets are lost, as result of practical network considerations, is reduced.

    Transmission of physical layer signaling in a broadcast system
    26.
    发明授权
    Transmission of physical layer signaling in a broadcast system 有权
    在广播系统中传输物理层信令

    公开(公告)号:US08498312B2

    公开(公告)日:2013-07-30

    申请号:US12244408

    申请日:2008-10-02

    IPC分类号: H04J3/24

    摘要: Aspects of the invention provide apparatuses, computer media, and methods for supporting the broadcast of signaling data over a network. Signaling data is encoded, partitioned into M signaling segments, and distributed over M corresponding data frames. A data stream with the partitioned signaling data is transmitted through a digital terrestrial television broadcasting system, where the partitioned signaling data may include physical layer configurable data. The number of distributed signaling segments may be determined from a predetermined value or from a parameter contained in pre-signaling data. The number of physical layer pipes supported by signaling data may be increased by separating the static signaling part and the dynamic signaling part, dividing static signaling part into signaling segments, and interleaving the signaling segments over the data frames. The number of physical layer pipes can be further increased by adding at least one P2 symbol.

    摘要翻译: 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。 信令数据被编码,分为M个信令段,并分布在M个对应的数据帧上。 具有分区信令数据的数据流通过数字地面电视广播系统传输,其中分区信令数据可以包括物理层可配置数据。 分布式信令段的数量可以从预定值或从包含在预信令数据中的参数确定。 可以通过分离静态信令部分和动态信令部分,将静态信令部分分为信令段,并通过数据帧对信令段进行交织,来增加由信令数据支持的物理层管道的数量。 可以通过添加至少一个P2符号来进一步增加物理层管道的数量。

    Forward Error Correction Decoders
    28.
    发明申请
    Forward Error Correction Decoders 审中-公开
    前向纠错解码器

    公开(公告)号:US20070240027A1

    公开(公告)日:2007-10-11

    申请号:US11630841

    申请日:2005-03-18

    IPC分类号: H04L1/00

    摘要: An erasure information table includes one element for each column of a data frame, stored in an IP datagram buffer and in an RS data buffer, instead of an element for each element of that column. Thus, CRC checking is performed against datagrams, instead of individual elements, of a received data frame, and effective error correction can be carried out by a Reed Solomon decoder. The effectiveness of the error correction is decreased since errors will be indicated as being present when actually an error is present in another row. The amount of memory needed to stare the erasure information though is reduced. In another embodiment, a linked list includes an element for each series of datagrams which have the same error status (i.e. reliable or unreliable). Each element includes the start address of the first datagram in that sequence and indicates the error status. Different lists may be used for application data and for parity data.

    摘要翻译: 擦除信息表包括存储在IP数据报缓冲器和RS数据缓冲器中的数据帧的每列的一个元素,而不是该列的每个元素的元素。 因此,针对接收数据帧的数据报而不是单个元素执行CRC校验,并且可以由Reed Solomon解码器执行有效的纠错。 错误校正的有效性降低,因为当实际上在另一行中存在错误时,错误将被指示为存在。 减少擦除信息所需的内存量减少了。 在另一实施例中,链表包括具有相同错误状态(即可靠或不可靠)的每一系列数据报的元素。 每个元素包括该序列中第一个数据报的起始地址,并指示错误状态。 不同的列表可用于应用程序数据和奇偶校验数据。

    Padding time-slice slots using variable delta-T
    29.
    发明申请
    Padding time-slice slots using variable delta-T 审中-公开
    使用可变delta-T填充时片时隙

    公开(公告)号:US20070002870A1

    公开(公告)日:2007-01-04

    申请号:US11169680

    申请日:2005-06-30

    IPC分类号: H04L12/56 H04B7/212

    摘要: Provided are apparatuses and methods for transmitting real-time service data in a digital broadcast network (e.g., DVB-H network), where gaps in the transmission are filled with non-real-time service data. Two types of service data are received as packets to be formed into time-slice bursts. Real-time service data, which typically varies in bit rate (e.g., streaming video), leaves gaps when capacity is reserved for it. These gaps are filled with non-real-time service data (e.g., file download) when forming time-slice bursts.

    摘要翻译: 提供了用于在数字广播网络(例如,DVB-H网络)中发送实时业务数据的装置和方法,其中传输中的间隙被非实时业务数据填充。 接收到两种类型的服务数据作为要形成时片脉冲串的分组。 通常在比特率上变化的实时业务数据(例如流视频)在为其保留容量时留下了间隙。 当形成时间片突发时,这些间隙被非实时业务数据填充(例如,文件下载)。

    Buffering of data from a data stream having error correction elements
    30.
    发明申请
    Buffering of data from a data stream having error correction elements 失效
    从具有纠错元素的数据流缓冲数据

    公开(公告)号:US20060268726A1

    公开(公告)日:2006-11-30

    申请号:US11139506

    申请日:2005-05-31

    IPC分类号: G06F11/00

    摘要: Data for a second Multi-Protocol Encapsulation-Forward Error Correcting (MPE-FEC) data frame is received while application data from a first MPE-FEC frame is undergoing error correction. The incoming data is buffered in a supplemental buffer having a size smaller than that needed for an entire MPE-FEC frame. As the supplemental buffer is filled, additional data from the second frame is stored in a buffer previously used to store error correction data for the first MPE-FEC frame. When corrected application data from the first MPE-FEC frame is transferred from an application data buffer used to hold application data undergoing correction, the second MPE-FEC frame data is transferred from the supplemental and error correction data buffers to the application data buffer. Additional data for the second frame is then placed directly into the application and error correction data buffers.

    摘要翻译: 在来自第一MPE-FEC帧的应用数据正在进行纠错的同时接收第二多协议封装前向纠错(MPE-FEC)数据帧的数据。 输入数据被缓冲在具有小于整个MPE-FEC帧所需的大小的补充缓冲器中。 当补充缓冲器被填充时,来自第二帧的附加数据被存储在先前用于存储第一MPE-FEC帧的纠错数据的缓冲器中。 当从用于保存正在进行校正的应用数据的应用数据缓冲器传送来自第一MPE-FEC帧的校正应用数据时,第二MPE-FEC帧数据从补充和纠错数据缓冲器传送到应用数据缓冲器。 然后将第二帧的附加数据直接放置到应用程序和纠错数据缓冲区中。