METHOD AND SYSTEM FOR HEADER COMPRESSION
    2.
    发明申请
    METHOD AND SYSTEM FOR HEADER COMPRESSION 审中-公开
    用于压头的方法和系统

    公开(公告)号:WO2005060339A2

    公开(公告)日:2005-07-07

    申请号:PCT/IB2004/004098

    申请日:2004-12-13

    Abstract: A compression context for a plurality of packets is established with a receiving device. Each of these packets is associated with one or more reliable multicast protocols, such as the Layered Coding Transform (LCT) protocol, the Asynchronous Layered Coding (ALC) protocol, the FLUTE protocol, the MUPPET protocol, and the NACK-Oriented Reliable Multicast (NORM) protocol. Upon establishment of the compression context, a compressed packet is generated for one of the plurality of packets and transmitted to the receiving device. The compressed packet has a reduced number of bits in its header. Upon receipt, the receiving device decompresses the compressed packet based on the compression context.

    Abstract translation: 用接收设备建立多个分组的压缩上下文。 这些分组中的每一个与一个或多个可靠的多播协议相关联,例如分层编码变换(LCT)协议,异步分层编码(ALC)协议,FLUTE协议,MUPPET协议和面向NACK的可靠多播( NORM)协议。 在建立压缩上下文时,为多个分组之一生成压缩分组,并发送给接收设备。 压缩包在其头部中具有减少的比特数。 在接收到接收设备时,基于压缩上下文来解压缩压缩的分组。

    MULTICAST SESSION HANDOVER
    4.
    发明申请
    MULTICAST SESSION HANDOVER 审中-公开
    多媒体会话切换

    公开(公告)号:WO2003045079A1

    公开(公告)日:2003-05-30

    申请号:PCT/IB2002/004810

    申请日:2002-11-18

    Abstract: A method and system for performing multicast broadcast handover in a wireless data network are disclosed. Each cell broadcasts administrative announcements over a logical channel to mobile terminals (101). The announcements indicate which multicast broadcasts are available in specified cells, as well as connection information for each cell (103). The mobile terminals may tune to a multicast broadcast as defined by the administrative announcements (105). While tuned to the multicast, the mobile terminal continues to receive administrative announcements (107). As the broadcast fades out or is otherwise interrupted, the mobile terminal can retune to the same multicast broadcast in another cell (109), based on the cell connection information included in the previously received administrative announcements (111).

    Abstract translation: 公开了一种在无线数据网络中执行多播广播切换的方法和系统。 每个小区通过逻辑信道广播到移动终端(101)的管理通告。 通知指示哪些组播广播在指定的小区中可用,以及每个小区的连接信息(103)。 移动终端可以调谐到由管理公告(105)定义的多播广播。 在调谐到多播时,移动终端继续接收管理通告(107)。 当广播淡出或被中断时,移动终端可以基于先前接收到的管理公告(111)中包括的小区连接信息重新调谐到另一小区(109)中的相同多播广播。

    A HYBRID NETWORK ENCRYPT/DECRYPT SCHEME
    6.
    发明申请
    A HYBRID NETWORK ENCRYPT/DECRYPT SCHEME 审中-公开
    混合网络加密/解密方案

    公开(公告)号:WO2003067888A1

    公开(公告)日:2003-08-14

    申请号:PCT/IB2003/000397

    申请日:2003-02-06

    Abstract: A hybrid method for a service provider (10) to transmit decryption information (e.g., algorithms, parameter, keys) to clients (12) in a secure manner and at low cost for use in decrypting broadcast services. The service provider (10) uses a bi-directional channel (14) (e.g., a GPRS channel) to receive service requests, authenticate clients and transmit currently valid decryption information (and, optionally, future decryption information) necessary to decrypt a broadcast service. The service provider (10) transmits the encrypted service on a unidirectional channel (16) (e.g., a DVB-T channel). The service provider (10) preferably also changes the encryption of the service with time, and, as it does, transmits updated decryption information to its clients (12) on the unidirectional channel (16). The updated decryption information is encrypted using the currently valid decryption information and may also include future decryption information and synchronization information.

    Abstract translation: 一种用于服务提供商(10)以安全的方式并且以低成本向解密广播服务的方式向客户端(12)传送解密信息(例如,算法,参数,密钥)的混合方法。 服务提供商(10)使用双向信道(14)(例如,GPRS信道)来接收服务请求,认证客户端并发送解密广播服务所需的当前有效的解密信息(以及可选地,将来的解密信息) 。 服务提供商(10)在单向信道(16)(例如,DVB-T信道)上发送加密的业务。 服务提供商(10)还优选地随时间改变服务的加密,并且如此,向单向信道(16)上的客户端(12)发送更新的解密信息。 使用当前有效的解密信息来加密更新的解密信息,还可以包括将来的解密信息和同步信息。

    CLUSTER FILTERING
    7.
    发明申请
    CLUSTER FILTERING 审中-公开
    群集过滤

    公开(公告)号:WO2003054715A1

    公开(公告)日:2003-07-03

    申请号:PCT/IB2002/005382

    申请日:2002-12-13

    CPC classification number: H04N21/6433 H04L69/18 H04N21/6371 H04N21/64784

    Abstract: Methods and systems are provided for filtering digital data formatted in packets. A filter module contains a plurality of filters and is coupled to a filter mapping module. The filter mapping module receives the identification of clusters of discrete segments of a packet and selects a group of fixed length filters to filter the clusters.

    Abstract translation: 提供了用于过滤以数据包格式化的数字数据的方法和系统。 滤波器模块包含多个滤波器并耦合到滤波器映射模块。 过滤器映射模块接收分组的离散段的簇的标识,并选择一组固定长度的过滤器来过滤簇。

    GROUPING OF SESSION OBJECTS
    8.
    发明申请
    GROUPING OF SESSION OBJECTS 审中-公开
    会话对象分组

    公开(公告)号:WO2006008593A1

    公开(公告)日:2006-01-26

    申请号:PCT/IB2005/001740

    申请日:2005-06-20

    CPC classification number: H04L12/1859 H04L67/06 H04L67/14

    Abstract: An object delivery session, such as a File Delivery over Unidirectional Transport (FLUTE) session, is joined and a description of a plurality of objects provided by the session are provided. The description indicates one or more groupings of the plurality of objects. An interesting object is determined from the plurality of objects. Based on the interesting object and the description of the plurality of objects, one or more of the plurality of objects are identified for downloading.

    Abstract translation: 诸如文件传送单向传输(FLUTE)会话之类的对象递送会话被连接,并且提供了由会话提供的多个对象的描述。 该描述指示多个对象中的一个或多个分组。 从多个对象确定有趣的对象。 基于有趣的对象和多个对象的描述,识别多个对象中的一个或多个用于下载。

    AN APPARATUS, SYSTEM, METHOD AND COMPUTER PROGRAM PRODUCT FOR RELIABLE MULTICAST TRANSPORT OF DATA PACKETS
    9.
    发明申请
    AN APPARATUS, SYSTEM, METHOD AND COMPUTER PROGRAM PRODUCT FOR RELIABLE MULTICAST TRANSPORT OF DATA PACKETS 审中-公开
    数据包的可靠多媒体传输的装置,系统,方法和计算机程序产品

    公开(公告)号:WO2005065010A2

    公开(公告)日:2005-07-21

    申请号:PCT/IB2004/004076

    申请日:2004-12-10

    CPC classification number: H04L1/1812 H04L1/1887

    Abstract: An apparatus, system method, and computer program product that combine the attributes of ALC and NORM for communicating data between devices on a network. A sending device uses multiple data rates on different channels to reliably send data packets and receivers use NACKs to request retransmission of missing or mangled data from the sending device or other receiving devices on the network. The sending device using an active ALC mechanism and the receiving devices use NACK and transmitting mechanisms for transmitting acknowledgements or data from the device. The sending and receiving devices can be located in the same or in different networks for communicating data packets during a data transmission session.

    Abstract translation: 一种组合ALC和NORM的属性的设备,系统方法和计算机程序产品,用于在网络上的设备之间传送数据。 发送设备在不同信道上使用多个数据速率可靠地发送数据包和接收机使用NACK来请求从发送设备或网络上的其他接收设备重传丢失或丢失的数据。 使用主动ALC机制的发送装置和接收装置使用NACK和用于从设备发送确认或数据的发送机制。 发送和接收设备可以位于相同或不同的网络中,以在数据传输会话期间传送数据分组。

    APPROXIMATING CELL GEOMETRY IN CELLULAR TRANSMISSION SYSTEM
    10.
    发明申请
    APPROXIMATING CELL GEOMETRY IN CELLULAR TRANSMISSION SYSTEM 审中-公开
    细胞传播系统中的细胞几何近似

    公开(公告)号:WO2004004397A1

    公开(公告)日:2004-01-08

    申请号:PCT/IB2002/002500

    申请日:2002-06-28

    Abstract: Approximating cell geometry in a cellular transmission systemUser equipment (UE1) for use in a cellular transmission system comprising a processor configuration (6) to provide data corresponding to first and second parameters (a, b) for dimensional extents of the cell, and to select one of a plurality of different approximate geometrical configurations for the cell in dependence on the relationship between the values of said parameters. The selected cell approximation is then compared with the UE's current location to determine if a cell handover is to be made. The cell approximation technique is described in relation to a DVB-T network.

    Abstract translation: 蜂窝传输系统中的近似小区几何用于蜂窝传输系统中的用户设备(UE1),包括处理器配置(6),用于提供对应于小区的维度范围的第一和第二参数(a,b)的数据,并且选择 根据所述参数的值之间的关系,针对单元的多个不同近似几何配置之一。 然后将所选择的小区近似与UE的当前位置进行比较,以确定是否要进行小区切换。 关于DVB-T网络描述了小区近似技术。

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