ENHANCED ACKNOWLEDGEMENT AND RETRANSMISSION MECHANISM
    2.
    发明申请
    ENHANCED ACKNOWLEDGEMENT AND RETRANSMISSION MECHANISM 有权
    增强认知和恢复机制

    公开(公告)号:US20140254351A1

    公开(公告)日:2014-09-11

    申请号:US13790631

    申请日:2013-03-08

    Abstract: Protocol data units (PDUs) associated with a packet stream are transmitted with sequence numbers to support reordering and selective acknowledgement. A selective acknowledgement (SACK) message may be used to indicate at least one sequence number of a lost or corrupted PDU which was not properly received by the receiving device. Responsive to the SACK message, the lost or corrupted PDU is retransmitted via a different path of the network, different from the path used to transmit the original PDU. Lost or corrupted PDUs may not be retransmitted if the estimated retransmission delay is greater than a delay tolerance associated with the quality of service requirements of the application. Instead, a control message (i.e. “cut losses” message) may be transmitted to indicate that PDUs earlier than a particular sequence number will not be transmitted.

    Abstract translation: 与分组流相关联的协议数据单元(PDU)以序列号发送以支持重新排序和选择性确认。 可以使用选择性确认(SACK)消息来指示由接收设备未正确接收的丢失或损坏的PDU的至少一个序列号。 响应于SACK消息,丢失或损坏的PDU经由网络的不同路径重传,不同于用于发送原始PDU的路径。 如果估计的重传延迟大于与应用程序的服务质量要求相关联的延迟容限,丢失或损坏的PDU可能不会被重新发送。 相反,可以发送控制消息(即“切断丢失”消息)以指示不会发送早于特定序列号的PDU。

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