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    • 4. 发明申请
    • CACHING OF CONTENT
    • 内容缓存
    • US20140331266A1
    • 2014-11-06
    • US14267772
    • 2014-05-01
    • Openwave Mobility Inc.
    • Declan HARRISONEoin MCQUILLAN
    • H04N21/647H04N21/433H04N21/231
    • H04N21/64784H04N21/23106H04N21/4331H04N21/44209H04N21/8456H04N21/85406
    • There is described a system of operating a network entity to distribute a media stream in a communications network. A plurality of different versions of the media stream are available from a content source, each version having a respective quality level different to that of the other versions and each version of the media stream comprises a plurality of consecutive portions. A first request is received from a user device for a portion of a first one of the versions of the media stream stored at a content source and a caching procedure is performed in response to receiving the first request. The caching procedure comprises requesting from the content source at least one portion of at least one of the other versions of the media stream or at least one other portion of the first one of the versions of the media stream; receiving the requested at least one portion or the at least one other portion; and causing the received at least one portion or the at least one other portion to be cached at a cache in the communication network.
    • 描述了操作网络实体以在通信网络中分发媒体流的系统。 媒体流的多个不同版本可从内容源获得,每个版本具有与其他版本不同的相应质量级别,并且媒体流的每个版本包括多个连续部分。 从用户设备接收存储在内容源的媒体流的第一版本的一部分的第一请求,并且响应于接收到第一请求而执行高速缓存过程。 高速缓存过程包括从内容源请求媒体流的其他版本的至少一个的至少一个的一部分或媒体流的第一个版本的至少一个其他部分; 接收所请求的至少一个部分或至少一个其他部分; 以及使所接收的至少一个部分或所述至少一个其它部分被缓存在所述通信网络中的高速缓存中。