DVB low bit rate services
    2.
    发明授权
    DVB low bit rate services 有权
    DVB低比特率服务

    公开(公告)号:US08243659B2

    公开(公告)日:2012-08-14

    申请号:US11686661

    申请日:2007-03-15

    IPC分类号: H04W4/00

    摘要: The invention is directed to efficient transfer of low bit rate services in a communication system. A synchronization symbol which has known characteristics may be included as a first symbol of digital broadcast frames. The synchronization symbol, which can be decoded without having to resort to trial and error methods, contains parameters for the rest of the signal. Low bit rate services are allocated to time slots following the pilot symbol used for synchronization allowing for fast access times with maximum power saving capabilities. A user terminal wakes up just before the synchronization symbol and received the data allocated for the low bit rate services. The user terminal may power off for the remaining time slots which are allocated for higher bit services to conserve power.

    摘要翻译: 本发明涉及在通信系统中低比特率服务的有效传输。 可以包括具有已知特征的同步符号作为数字广播帧的第一符号。 可以解码而不必诉诸试验和误差方法的同步符号包含信号其余部分的参数。 低比特率服务被分配到用于同步的导频符号之后的时隙,允许具有最大功率节省能力的快速接入时间。 用户终端在同步符号之前醒来并接收分配给低比特率服务的数据。 用户终端可以为分配给较高位服务的剩余时隙断电以节省功率。

    Using Forward Error Correction with Generic Stream Encapsulation in a Digital Broadcast Network
    5.
    发明申请
    Using Forward Error Correction with Generic Stream Encapsulation in a Digital Broadcast Network 审中-公开
    在数字广播网络中使用通用流封装的前向纠错

    公开(公告)号:US20080225892A1

    公开(公告)日:2008-09-18

    申请号:US11686650

    申请日:2007-03-15

    IPC分类号: H04J3/24

    CPC分类号: H04L1/0057 H04L1/0083

    摘要: Aspects of the invention are directed to using forward error correaction in a digital broadcast network that supports generic stream encapsulation. According to an embodiment, error correaction data is calculated over application data, and the application data and error correaction data are encapsulated in generic stream encapsulation packets. In another embodiment, error correaction data is calculated over generic stream encapsulation packets. In yet another embodiment, error correaction data is calculated over, and encapsulated within, generic stream encapsulation packets. In still another embodiment, error correaction data is calculated over application data packets.

    摘要翻译: 本发明的方面涉及在支持通用流封装的数字广播网络中使用前向纠错。 根据实施例,通过应用数据计算错误相关数据,并将应用数据和错误相关数据封装在通用流封装分组中。 在另一个实施例中,对通用流封装分组计算错误相关数据。 在另一个实施例中,在通用流封装分组中计算并封装在通用流封装分组中的错误相关数据。 在另一个实施例中,通过应用数据包计算错误相关数据。

    Mapping service components in a broadcast environment
    6.
    发明授权
    Mapping service components in a broadcast environment 有权
    在广播环境中映射服务组件

    公开(公告)号:US08774225B2

    公开(公告)日:2014-07-08

    申请号:US12365394

    申请日:2009-02-04

    IPC分类号: H04J1/00

    CPC分类号: H04W36/385

    摘要: Services and service components in a broadcast network may be mapped to disparate physical layer transmission channels (PLPs) using logical layer pipes (LLPs). The use of LLPs allows different service components of a single service to be mapped to physical layer transmission channels (PLPs). Accordingly, service components may be shared among different services. Additionally or alternatively, different functions (e.g., different error detection or correction protocols) may be applied to each service components of a service. A receiver may identify services, service components and corresponding PLPs based on LLP identifiers. The receiver may then access and receive desired services and service components through the identified PLPs.

    摘要翻译: 可以使用逻辑层管线(LLP)将广播网络中的服务和服务组件映射到不同的物理层传输信道(PLP)。 使用LLP允许将单个服务的不同服务组件映射到物理层传输信道(PLP)。 因此,服务组件可以在不同的服务之间共享。 附加地或替代地,可以将不同的功能(例如,不同的错误检测或校正协议)应用于服务的每个服务组件。 接收机可以基于LLP标识符识别服务,服务组件和对应的PLP。 然后,接收机可以通过所识别的PLP访问和接收所需的服务和服务组件。

    METHOD AND SYSTEM TO GUARANTEE SERVICE RECEPTION WITHIN BROADCAST SYSTEM
    8.
    发明申请
    METHOD AND SYSTEM TO GUARANTEE SERVICE RECEPTION WITHIN BROADCAST SYSTEM 有权
    在广播系统中保证服务接收的方法和系统

    公开(公告)号:US20090097446A1

    公开(公告)日:2009-04-16

    申请号:US12204750

    申请日:2008-09-04

    IPC分类号: H04W72/12

    摘要: A system and method is provided for ensuring that time for tuning to another RF channel between two TF frames in TF slicing exists while reception with a single hopping-tuner is enabled, and reception for terminals can be guaranteed when transmitting and receiving common services. An additional time for tuning is introduced for TF-sliced services, where the time for tuning can be inserted either before of after the P1 & P2 symbols, and the symbols allocated for the tuning time can also be used for transmission of low-bit rate services. Alternatively, additional padding bits and a guard period can be added in the event that slots or slot fragments exceed a cyclic transfer border upon time shifting. Alternatively still, the tuning time is represented by a complete TF frame, where the complete TF frame carries services other than those in the first TF frame, so that a service is transmitted in every second TF frame and a receiver can perform tuning during the TF frames which do not carry the service.

    摘要翻译: 提供了一种系统和方法,用于确保在使用单跳频调谐器的接收时存在用于在TF切片中的两个TF帧之间调谐到另一RF信道的时间,并且当发送和接收公共服务时可以保证终端的接收。 为TF分片服务引入了一个额外的调谐时间,其中可以在P1和P2符号之前插入调谐时间,并且为调谐时间分配的符号也可以用于传输低比特率 服务。 或者,在时隙或时隙片段在时移时超过循环传输边界的情况下,可以添加额外的填充比特和保护周期。 或者,调谐时间由完整的TF帧表示,其中完整的TF帧承载不同于第一TF帧中的服务的服务,使得在每秒TF帧中发送服务,并且接收机可以在TF期间执行调谐 不携带服务的帧。

    Method and system to guarantee service reception within broadcast system
    9.
    发明授权
    Method and system to guarantee service reception within broadcast system 有权
    确保广播系统内服务接收的方法和系统

    公开(公告)号:US08213383B2

    公开(公告)日:2012-07-03

    申请号:US12204750

    申请日:2008-09-04

    摘要: A system and method is provided for ensuring that time for tuning to another RF channel between two TF frames in TF slicing exists while reception with a single hopping-tuner is enabled, and reception for terminals can be guaranteed when transmitting and receiving common services. An additional time for tuning is introduced for TF-sliced services, where the time for tuning can be inserted either before of after the P1 & P2 symbols, and the symbols allocated for the tuning time can also be used for transmission of low-bit rate services. Alternatively, additional padding bits and a guard period can be added in the event that slots or slot fragments exceed a cyclic transfer border upon time shifting. Alternatively still, the tuning time is represented by a complete TF frame, where the complete TF frame carries services other than those in the first TF frame, so that a service is transmitted in every second TF frame and a receiver can perform tuning during the TF frames which do not carry the service.

    摘要翻译: 提供了一种系统和方法,用于确保在使用单跳频调谐器的接收时存在用于在TF切片中的两个TF帧之间调谐到另一RF信道的时间,并且当发送和接收公共服务时可以保证终端的接收。 为TF分片服务引入了一个额外的调谐时间,其中可以在P1和P2符号之前插入调谐时间,并且为调谐时间分配的符号也可以用于传输低比特率 服务。 或者,在时隙或时隙片段在时移时超过循环传输边界的情况下,可以添加额外的填充比特和保护周期。 或者,调谐时间由完整的TF帧表示,其中完整的TF帧承载不同于第一TF帧中的服务的服务,使得在每秒TF帧中发送服务,并且接收机可以在TF期间执行调谐 不携带服务的帧。

    System and method for scheduling and transferring data through a transmission system
    10.
    发明授权
    System and method for scheduling and transferring data through a transmission system 有权
    通过传输系统调度和传输数据的系统和方法

    公开(公告)号:US08670372B2

    公开(公告)日:2014-03-11

    申请号:US12132512

    申请日:2008-06-03

    IPC分类号: H04B7/212

    摘要: A system and method for dynamically dividing the capacity of a fixed time division multiplexing (TDM) frame between physical channels for data transmission. According to various embodiments, a time frequency frame is divided into a plurality of subframes, and each of the plurality of subframes are divided into a plurality of corresponding slots. The plurality of slots are then selectively time shifted such that a defined time shift exists between corresponding slots in each subframe within the time frequency frame. For any slots or slot portions which have been selectively shifted beyond the end of the time frequency frame, such slots or slot portions are cyclically shifted to the beginning of the frame. Service data is then written into the slots of the time frequency frame, and the frame containing the service data can then be transmitted. Initialization and service access processes for a receiver are also provided.

    摘要翻译: 一种用于动态划分用于数据传输的物理信道之间的固定时分复用(TDM)帧的容量的系统和方法。 根据各种实施例,时间频率帧被划分为多个子帧,并且多个子帧中的每一个被划分成多个对应的时隙。 然后,多个时隙被选择性地时移,使得在时间频率帧内的每个子帧中的相应时隙之间存在规定的时移。 对于已选择性地偏移超出时间频率帧结束的任何时隙或时隙部分,这些时隙或时隙部分被循环移位到帧的开头。 服务数据然后被写入时间帧的时隙,然后可以发送包含服务数据的帧。 还提供了接收器的初始化和服务访问过程。