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    • 3. 发明申请
    • METHOD AND APPARATUS FOR MANAGING A QUALITY OF SERVICE FOR A COMMUNICATION LINK
    • 用于管理通信链路的服务质量的方法和装置
    • WO2006076518A2
    • 2006-07-20
    • PCT/US2006/001131
    • 2006-01-12
    • SBC KNOWLEDGE VENTURES, L.P.WU, XidongKRISHNAMUTHI, GaneshSAVOOR, Raghvendra, G.
    • WU, XidongKRISHNAMUTHI, GaneshSAVOOR, Raghvendra, G.
    • H04L12/26H04L12/28
    • H04Q11/04H04L43/0811H04L43/0847
    • A method and apparatus for managing the quality of a communication link is provided. A performance of a communication line (i.e. digital subscriber line), being affected by code violations, typically impulse noise, is estimated. An application characteristic for the communication line is then imputed from Layer 2 and Layer 3 network levels attributes, such as upstream/downstream percentages, IP port usage, ATM cell count. A correlation is made between the performance and the application, and a decision model then applies a maintenance profile the communication line based on the performance and the application. The present invention provides a method and apparatus for managing a quality of service experienced by a user when running an application over a communication link. A performance for the communication link is estimated and an application characteristic for the communication link is imputed from data gathered regarding the communication link performance. A decision model is then applied to select an appropriate maintenance profile for managing the quality of service provided by the communication link. The selected profile is then applied to the communication link based on the performance and the application. Management of the quality of service includes selecting an appropriate profile to provide an acceptable user experience for the application and noise level.
    • 提供了一种用于管理通信链路的质量的方法和装置。 估计受代码违规影响的通信线路(即数字用户线路)的性能,通常是脉冲噪声。 然后,从第2层和第3层网络级属性(例如上行/下行百分比,IP端口使用,ATM信元计数)估计通信线路的应用特性。 在性能和应用之间进行相关性,然后决策模型根据性能和应用来应用维护配置文件的通信线路。 本发明提供一种用于在通过通信链路运行应用程序时管理用户所经历的服务质量的方法和装置。 估计用于通信链路的性能,并且从针对通信链路性能收集的数据估计通信链路的应用特性。 然后应用决策模型来选择用于管理由通信链路提供的服务质量的适当维护简档。 所选择的配置文件然后根据性能和应用程序应用于通信链路。 管理服务质量包括选择适当的配置文件,为应用程序和噪音级别提供可接受的用户体验。
    • 9. 发明申请
    • PLACEMENT OF SERVERS IN AN IP TELEVISION NETWORK
    • 服务器在IP电视网络中的布置
    • WO2007058886A2
    • 2007-05-24
    • PCT/US2006/043639
    • 2006-11-09
    • SBC KNOWLEDGE VENTURES, G.P.BELLFORD, Russell, B.LI, ZhiOU, CanhuiSAVOOR, Raghvendra, G.
    • BELLFORD, Russell, B.LI, ZhiOU, CanhuiSAVOOR, Raghvendra, G.
    • H04N7/173
    • H04L12/1854H04H20/78H04L43/00H04L43/0852H04L43/16H04N21/64738
    • According to one example embodiment the placement of video distribution servers and acquisition servers in a liye television IPTV network is considered to be a separate process. This process may be based, for example, on historical data, number of subscribers, subscribers’ service quality, some video distribution servers may be selectively placed closer to the subscribers, i.e., at some central offices or intermediate offices, instead of at the video hub office. These local video distribution servers (those video, distribution servers not located at video hub office) may selectively receive popular TV channel streams just like regular video subscribers based on the multicasting protocol from the acquisition server. Whenever a subscriber wants to switch to a channel (or recover packet loss for an on-going channel), if the channel is on the popular channel list, the service may be accomplished by the local video distribution servers. Otherwise, the service will be provided by the remote video distribution servers (those placed together with acquisition servers). This approach may facilitate faster channel change and quick packet loss recovery, decreased traffic load on the service networks, and improvement inithe subscribers video packets delivery performance.
    • 根据一个示例性实施例,视频分发服务器和采集服务器在利雅电视IPTV网络中的布置被认为是单独的过程。 该过程可以基于例如历史数据,订户数量,订户的服务质量,一些视频分发服务器可以被选择性地放置在更接近用户的位置,即在一些中心局或中间局,而不是在视频 枢纽办公室。 这些本地视频分发服务器(那些不在视频中心办公室的视频分发服务器)可以根据来自采集服务器的多播协议选择性地接收流行的TV频道流,就像常规视频订阅者一样。 每当用户想要切换到频道(或恢复正在进行的频道的分组丢失)时,如果频道在流行频道列表上,则该服务可以由本地视频分配服务器完成。 否则,该服务将由远程视频分发服务器(与采集服务器放在一起的服务器)提供。 这种方法可以促进更快的信道改变和快速的分组丢失恢复,降低业务网络上的业务负载,以及提高用户视频分组传送性能。