公开(公告)号：US20100183012A1

公开(公告)日：2010-07-22

申请号：US12668271

申请日：2008-07-11

申请人： Kazunobu Konishi ,  Eiichi Muramoto ,  Takahiro Yoneda ,  Ichiro takei ,  Masashi Kobayashi ,  Taisuke Matsumoto

发明人： Kazunobu Konishi ,  Eiichi Muramoto ,  Takahiro Yoneda ,  Ichiro takei ,  Masashi Kobayashi ,  Taisuke Matsumoto

IPC分类号： H04L12/56

CPC分类号： H04L12/44 ,  H04L1/1887 ,  H04L2001/0093

摘要： A data transmitting apparatus is provided for making it possible to send out a retransmitting packet at early timing even in the case where a delivery tree structure is unclear. A transmitting terminal device (200) including this data transmitting apparatus is comprised of a retransmitting request receiving unit (240) that receives a data retransmitting request, a receiving terminal device relevancy updating unit (250) that stores a past history of the number of reception of a retransmitting request transmitted from a first data receiving device and a past history of the number of reception of a retransmitting request sent from the other data receiving devices, wherein the subject of the retransmitting request sent by the other data receiving devices is the same as that of the retransmitting request sent by the first data receiving device, and a retransmitting destination selecting unit (260) that estimates a delivery tree from the history stored by the receiving terminal device relevancy updating unit when the retransmitting destination selecting unit receives the retransmitting request from the first data receiving device and selects, in addition to the first data receiving device, the other data receiving devices positioned in a downstream of the first data receiving device in the estimated delivery tree.

摘要翻译： 提供了一种数据发送装置，即使在传送树结构不清楚的情况下，也能够在早期定时发送重传分组。 包括该数据发送装置的发送终端装置（200）由接收数据重传请求的重发请求接收部（240），接收终端装置相关性更新部（250），存储接收次数的历史 从第一数据接收装置发送的重传请求和从其他数据接收装置发送的重发请求的接收次数的过去历史，其中由其他数据接收装置发送的重传请求的主体与 由第一数据接收装置发送的重传请求的发送树，以及当重传目的地选择部从接收终端装置关联更新部存储的历史中接收到重传请求时， 第一个数据接收设备，并选择，除了第一个 t数据接收装置，位于估计传送树中的第一数据接收装置的下游的其他数据接收装置。