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    • 3. 发明申请
    • Method, system and network entity for data transmission and reception with header protection
    • 用于数据传输和接收的方法,系统和网络实体,具有报头保护
    • US20070002900A1
    • 2007-01-04
    • US10548964
    • 2003-03-18
    • Pasi KarkasJyrki AlamaunuRami SuominenJuha TombergHarri Pekonen
    • Pasi KarkasJyrki AlamaunuRami SuominenJuha TombergHarri Pekonen
    • H04J3/24
    • H04L1/0041H04L1/0057H04L1/0061H04L1/0072H04N21/23476H04N21/44055H04N21/4627H04N21/835
    • A method, a system, a transmitter and a receiver defining a header protection mechanism for DVB MPE (Multi-Protocol Encapsulation) section protocol is provided, which is used in DVB-T mobile reception. MPE section in this case is referring to a proposal for using MPE section MAC (Media Access Control) bytes 1-5 to carry real time information related to time slice bursts. By using header protection mechanism together with high level FEC (Forward Error Correction), there is a way to enhance significantly mobile digital broadband data reception capabilities. The header protection used together with the high level FEC in DVB provides an advantageous solution for DVB mobile burst data reception. All packets having an uncorrupted MPE section header is put into an array for higher level error correction such as FEC. The array has addressable storage locations of mobile digital broadband data for correction of higher level data entity by FEC process. At the receiver the packet is put into a buffer. A header is identified and checked against errors by using CRC (Cyclic Redundancy Check) for the received header data. If the CRC indicates substantially correct value or is OK, the address of the packet is extracted. The packet including the header is put into the array.
    • 提供了一种定义用于DVB-T移动接收的DVB MPE(多协议封装)部分协议的报头保护机制的方法,系统,发射机和接收机。 在这种情况下,MPE部分是指使用MPE部分MAC(媒体访问控制)字节1-5携带与时间片脉冲相关的实时信息的提议。 通过使用标题保护机制和高级FEC(前向纠错),有一种方法来增强移动数字宽带数据接收能力。 与DVB中的高级FEC一起使用的报头保护为DVB移动突发数据接收提供了有利的解决方案。 具有未损坏的MPE部分头部的所有分组被放入用于诸如FEC的更高级别纠错的阵列中。 该阵列具有可移动数字宽带数据的可寻址存储位置,用于通过FEC处理校正较高级数据实体。 在接收器处,数据包被放入缓冲区。 通过对接收到的报头数据使用CRC(循环冗余校验)来识别和检查报头。 如果CRC指示基本正确的值或者OK,则提取分组的地址。 包含头部的数据包放入数组中。
    • 4. 发明申请
    • MAPPING SERVICE COMPONENTS IN A BROADCAST ENVIRONMENT
    • 在广播环境中映射服务组件
    • US20100195633A1
    • 2010-08-05
    • US12365394
    • 2009-02-04
    • Jani VareJyrki AlamaunuHarri J. PekonenJussi Vesma
    • Jani VareJyrki AlamaunuHarri J. PekonenJussi Vesma
    • H04W4/00
    • H04W36/385
    • 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.
    • 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。
    • 5. 发明申请
    • DATA ENCAPSULATION AND SERVICE DISCOVERY OVER A BROADCAST OR MULTICAST SYSTEM
    • 数据封装和服务发现在广播或多媒体系统
    • US20110103300A1
    • 2011-05-05
    • US12609600
    • 2009-10-30
    • Jani Petteri VareJyrki Alamaunu
    • Jani Petteri VareJyrki Alamaunu
    • H04W4/00H04B1/66
    • H04N21/6112H04L65/608H04L69/22H04N21/64315H04N21/6437
    • Systems and methods may receive a baseband frame comprising a Layer 2 signaling section and an encapsulation protocol packet encapsulating: a service discovery real time transport protocol packet, and a real time transport protocol packet comprising at least one physical layer pipe transporting at least one service component for at least one service, wherein the Layer 2 signaling section includes a service list comprising one or more service names each associated with a respective physical layer pipe identifier of the at least one physical layer pipe; process the Layer 2 signaling section to obtain the service list; determining a desired service name of the one or more service names, the desired service name being associated with a first service component of the at least one service component; and identify a first physical layer pipe identifier associated with the desired service name to initiate decoding of the first service component.
    • 系统和方法可以接收包括二层信令部分和封装协议分组的基带帧,封装协议分组封装:服务发现实时传输协议分组,以及实时传输协议分组,包括至少一个传输至少一个服务组件 对于至少一个服务,其中所述第二层信令部分包括服务列表,其包括与所述至少一个物理层管道的相应物理层管道标识符相关联的一个或多个服务名称; 处理二层信令部分获取服务列表; 确定所述一个或多个服务名称的期望服务名称,所述期望服务名称与所述至少一个服务组件的第一服务组件相关联; 以及识别与所述服务名称相关联的第一物理层管道标识符,以启动所述第一服务组件的解码。
    • 7. 发明申请
    • Buffering of data from a data stream having error correction elements
    • 从具有纠错元素的数据流缓冲数据
    • US20060268726A1
    • 2006-11-30
    • US11139506
    • 2005-05-31
    • Jyrki AlamaunuHarri PekonenMikko Savolainen
    • Jyrki AlamaunuHarri PekonenMikko Savolainen
    • G06F11/00
    • H04L1/0052H03M13/09H03M13/1515H03M13/154H03M13/2707H03M13/6505H04L1/0057
    • 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.
    • 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。