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    MULTICAST LEAVE METHOD
    93.
    发明公开
    MULTICAST LEAVE METHOD 审中-公开

    公开(公告)号：EP4440077A1

    公开(公告)日：2024-10-02

    申请号：EP23165957.4

    申请日：2023-03-31

    申请人： British Telecommunications public limited company

    发明人： The designation of the inventor has not yet been filed

    IPC分类号： H04L65/611 ,  H04L65/612 ,  H04L65/75 ,  H04L67/56 ,  H04L69/28

    CPC分类号： H04L65/611 ,  H04L65/612 ,  H04L65/765 ,  H04L67/56 ,  H04L67/568 ,  H04L65/61

    摘要： A method of managing content delivery to a client device by a proxy, where the content is made up of a sequence of content segments and each segment is encoded at a plurality of bit rates or quality levels. The proxy starts off by receiving content requests from the client device over unicast, forwarding them to a content server, and in response, receiving the content over unicast from the content server before forwarding it onto the client device. At some stage, the proxy joins a multicast channel and receives segments over multicast, and a timer is started. That timer is restarted every time one of the requests from the client device matches that of a segment received over multicast. The proxy leaves the multicast channel once the timer expires, and returns to satisfying segment requests from the client device using unicast. The timer can be adjusted according to the determined bandwidth between the unicast content source and the proxy.