Chunk Request Scheduler for HTTP Adaptive Streaming
    11.
    发明申请
    Chunk Request Scheduler for HTTP Adaptive Streaming 审中-公开
    用于HTTP自适应流的块请求调度程序

    公开(公告)号:US20130227102A1

    公开(公告)日:2013-08-29

    申请号:US13408014

    申请日:2012-02-29

    IPC分类号: G06F15/16

    摘要: A chunk request scheduler is provided for HTTP adaptive streaming. Requests for media chunks are scheduled over a network by requesting the media chunks over at least one connection; storing the media chunks in at least one buffer; monitoring a level of the at least one buffer; and selectively switching between at least two predefined download strategies for the request based on the buffer level. Requests for media chunks can also be scheduled over a network by obtaining an ordering of the connections based on a rate of each connection; storing the media chunks in at least one buffer; and requesting the media chunks over the ordered plurality of connections based on a size of the media chunks. For example, audio chunk requests can be scheduled over TCP connections having a lower rate order and video chunk requests can be scheduled over TCP connections having a higher rate order.

    摘要翻译: 为HTTP自适应流提供了块请求调度程序。 通过请求媒体块至少一个连接,通过网络调度媒体块的请求; 将所述媒体块存储在至少一个缓冲器中; 监视所述至少一个缓冲器的级别; 以及基于所述缓冲器级别选择性地在所述请求的至少两个预定义的下载策略之间切换。 也可以通过网络调度对媒体块的请求,通过基于每个连接的速率获得连接的顺序; 将所述媒体块存储在至少一个缓冲器中; 以及基于所述媒体块的大小向所述有序的多个连接请求所述媒体块。 例如,可以通过具有较低速率顺序的TCP连接来调度音频块请求,并且可以通过具有较高速率顺序的TCP连接调度视频块请求。

    Topology aware cache cooperation
    12.
    发明授权
    Topology aware cache cooperation 有权
    拓扑识别缓存合作

    公开(公告)号:US08417816B2

    公开(公告)日:2013-04-09

    申请号:US12551257

    申请日:2009-08-31

    IPC分类号: G06F15/173

    摘要: A content distribution network (CDN) comprising a hierarchy of content storage nodes (CSNs) or caches having storage space that is allocated between local space for storing locally popular content objects and federated space for storing a portion of the less popular content objects. Local space and federated space based upon changes in content object popularity and/or other utility factors. Optionally, parent/child (upstream/downstream) communication paths are used to migrate content between CSNs or caches of the same or different hierarchical levels to avoid utilizing higher price top hierarchical level communications channels.

    摘要翻译: 内容分发网络(CDN)包括内容存储节点(CSN)的层次结构或具有在用于存储本地流行的内容对象的本地空间之间分配的存储空间的高速缓存,以及用于存储不太受欢迎的内容对象的一部分的联合空间。 基于内容对象流行度和/或其他效用因素的变化的本地空间和联合空间。 可选地,父/子(上游/下游)通信路径用于在相同或不同分层级别的CSN或高速缓存之间迁移内容,以避免使用更高价格的顶级分层级通信信道。

    TOPOLOGY AWARE CACHE STORAGE
    13.
    发明申请
    TOPOLOGY AWARE CACHE STORAGE 有权
    拓扑知识缓存存储

    公开(公告)号:US20130007187A1

    公开(公告)日:2013-01-03

    申请号:US13610031

    申请日:2012-09-11

    IPC分类号: G06F15/167

    摘要: A content distribution network (CDN) comprising a hierarchy of content storage nodes (CSNs) or caches having storage space that is allocated between local space for storing locally popular content objects and federated space for storing a portion of the less popular content objects. Local space and federated space based upon changes in content object popularity and/or other utility factors. Optionally, parent/child (upstream/downstream) communication paths are used to migrate content between CSNs or caches of the same or different hierarchical levels to avoid utilizing higher price top hierarchical level communications channels.

    摘要翻译: 内容分发网络(CDN)包括内容存储节点(CSN)的层次结构或具有在用于存储本地流行的内容对象的本地空间之间分配的存储空间的高速缓存,以及用于存储不太受欢迎的内容对象的一部分的联合空间。 基于内容对象流行度和/或其他效用因素的变化的本地空间和联合空间。 可选地,父/子(上游/下游)通信路径用于在相同或不同分层级别的CSN或高速缓存之间迁移内容,以避免使用更高价格的顶级分层级通信信道。