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    • 8. 发明申请
    • A METHOD AND APPARATUS FOR RETRANSMISSION DECISION MAKING
    • 一种用于恢复决策的方法和装置
    • WO2011093836A1
    • 2011-08-04
    • PCT/US2010/000228
    • 2010-01-28
    • THOMSON LICENSINGLU, XiupingMANDREKAR, Ishan, UdayPERUMANAM, RamkumarLIU, Hang
    • LU, XiupingMANDREKAR, Ishan, UdayPERUMANAM, RamkumarLIU, Hang
    • H04L1/18H04L1/16
    • H04L1/1838H04L1/1671H04L1/1877
    • A method and apparatus are described including parsing (410) an abstraction- layer header and assigning a priority to a packet to be transmitted. A network monitor (270, 405) of a transmitter is connected between a network interface (250) and a retransmission decision maker (275) for deciding which packets to retransmit, for example, based on the assigned priority and collected network statistics or conditions, for example, packet loss rate. A network monitor (271) may also be provided at a receiver for collecting current network statistics such as cumulative number of packets lost and for providing such statistics to a transmitter (200). The method further includes buffering the data to be transmitted along with the assigned priority, transmitting data retrieved from a buffer (235) via a datagram protocol (240, 245), receiving (405) a request for retransmission of data, determining (415) if the requested data is in the buffer and retransmitting the requested data via a protocol that provides end-to-end acknowledgement of data and error recovery.
    • 描述了一种方法和装置,其包括解析(410)抽象层报头并且将要发送的分组分配优先级。 发送器的网络监视器(270,405)连接在网络接口(250)和重发决策器(275)之间,用于例如基于分配的优先级和收集的网络统计或条件来决定哪些分组被重传, 例如,丢包率。 也可以在接收机处提供网络监视器(271),用于收集当前网络统计信息,例如丢失的分组的累积数目和用于将这种统计信息提供给发射机(200)。 该方法还包括缓冲要发送的数据与分配的优先级,经由数据报协议(240,245)从缓冲器(235)检索的数据,接收(405)数据重发请求,确定(415) 如果请求的数据在缓冲器中,并通过提供数据和错误恢复的端到端确认的协议来重传所请求的数据。