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公开(公告)号：US08023509B2
公开(公告)日：2011-09-20
申请号：US12301598
申请日：2007-05-17
IPC分类号： H04L12/56
CPC分类号： H04L12/1868 , H04L1/1809 , H04L45/00 , H04L45/16 , H04L45/28 , H04L2001/0093 , H04L2001/0097
摘要： A multicast communication system in which a receiving node which has detected a packet loss can make a retransmission request without applying a high load to a transmitting node, all receiving nodes, and the band of the entire network. The transmitting node transmits an explicit multicast data packet including an address list including a plurality of destination addresses and a bitmap indicating whether the data packet has been delivered to the respective destination addresses, to a plurality of the receiving nodes. The receiving node which has detected the packet loss checks an address list and bitmap of another data packet received and selects a receiving node to which the another data packet has been delivered as a retransmission requester. The receiving node which has detected the packet loss creates a unicast retransmission request packet with the selected receiving node as the destination and transmits it to the selected receiving node.
摘要翻译： 一种组播通信系统，其中检测到分组丢失的接收节点可以在不向发送节点，所有接收节点和整个网络的频带施加高负载的情况下进行重传请求。 发送节点向多个接收节点发送包括包括多个目的地地址的地址列表和指示数据分组是否已经被递送到各个目的地地址的位图的显式多播数据分组。 已经检测到分组丢失的接收节点检查接收到的另一数据分组的地址列表和位图，并选择另一数据分组已经被传送到的接收节点作为重传请求者。 已经检测到分组丢失的接收节点与所选择的接收节点一起创建单播重传请求分组，并将其发送到所选择的接收节点。
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公开(公告)号：US08009564B2
公开(公告)日：2011-08-30
申请号：US11997680
申请日：2006-08-01
IPC分类号： G01R31/08
CPC分类号： H04L69/16 , H04L12/1836 , H04L12/1854 , H04L45/00 , H04L47/15 , H04L47/263 , H04L69/161
摘要： In a communication of explicit multicast system used in SICC, the frequency of variation of the transmission rate is reduced to achieve a multimedia data transmission exhibiting a high quality. An available bandwidth estimating part (102) of a transmitting apparatus (100) uses feedback information, which is received by a receiving part (101) from a receiving apparatus (200), to estimate a bandwidth available to the receiving apparatus. A bandwidth correcting part (103) corrects, based on a difference in header size between a current class and an upper-order class, the estimated available bandwidth. A class deciding part (104) uses the corrected bandwidth to change the class to which the receiving apparatus belongs.
摘要翻译： 在SICC中使用的显式多播系统的通信中，降低了传输速率的变化频率以实现呈现出高质量的多媒体数据传输。 发送装置（100）的可用带宽估计部（102）使用来自接收装置（200）的接收部（101）接收到的反馈信息来估计接收装置可用的带宽。 带宽校正部分（103）根据当前类和高级类之间的报头大小的差异来校正可估计的可用带宽。 类决定部（104）使用校正后的带宽来改变接收装置所属的类。
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公开(公告)号：US20090245252A1
公开(公告)日：2009-10-01
申请号：US12301598
申请日：2007-05-17
IPC分类号： H04L12/56
CPC分类号： H04L12/1868 , H04L1/1809 , H04L45/00 , H04L45/16 , H04L45/28 , H04L2001/0093 , H04L2001/0097
摘要： A multicast communication system in which a receiving node which has detected a packet loss can make a retransmission request without applying a high load to a transmitting node, all receiving nodes, and the band of the entire network. The transmitting node transmits an explicit multicast data packet including an address list including a plurality of destination addresses and a bitmap indicating whether the data packet has been delivered to the respective destination addresses, to a plurality of the receiving nodes. The receiving node which has detected the packet loss checks an address list and bitmap of another data packet received and selects a receiving node to which the another data packet has been delivered as a retransmission requester. The receiving node which has detected the packet loss creates a unicast retransmission request packet with the selected receiving node as the destination and transmits it to the selected receiving node.
摘要翻译： 一种组播通信系统，其中检测到分组丢失的接收节点可以在不向发送节点，所有接收节点和整个网络的频带施加高负载的情况下进行重传请求。 发送节点向多个接收节点发送包括包括多个目的地地址的地址列表和指示数据分组是否已经被递送到各个目的地地址的位图的显式多播数据分组。 已经检测到分组丢失的接收节点检查接收到的另一数据分组的地址列表和位图，并选择另一数据分组已经被传送到的接收节点作为重传请求者。 已经检测到分组丢失的接收节点与所选择的接收节点一起创建单播重传请求分组，并将其发送到所选择的接收节点。
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公开(公告)号：US08098660B2
公开(公告)日：2012-01-17
申请号：US11997130
申请日：2006-07-28
IPC分类号： H04L12/56
CPC分类号： H04W72/005 , H04L12/1827 , H04W28/06 , H04W76/20
摘要： To transmit multimedia data in such a manner that is adaptive to the transmission capability of a receiving apparatus and/or to the congestion state of a network. In a transmitting apparatus (100), a receiver capability estimating part (102) estimates, based on feedback information from a receiving apparatus (200), a useable band. A receiver classifying part (103) classifies, based on the useable band, the receiving apparatus. A receiver list rearranging part (105) rearranges, in order of transmission capability, a receiver list where classified receiving apparatuses are listed in classes. A packet generating part (106) generates a packet having the receiver list and transmits it at an appropriate transmission rate.
摘要翻译： 以适应于接收装置的传输能力和/或网络的拥塞状态的方式发送多媒体数据。 在发送装置（100）中，接收机能力估计部（102）基于来自接收装置（200）的反馈信息，估计可使用的频带。 接收机分类部（103）基于可用频带对接收装置进行分类。 接收机列表重排部分（105）以传输能力的顺序重新排列分类的接收设备在类中列出的接收机列表。 分组生成部（106）生成具有接收方列表的分组，并以适当的传输速度发送。
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公开(公告)号：US20110170417A1
公开(公告)日：2011-07-14
申请号：US13119296
申请日：2009-08-11
IPC分类号： H04L12/26
CPC分类号： H04L47/10
摘要： A first communication terminal which communicates with a second communication terminal through a best effort network includes: a communication history storage unit in which a communication history is stored for each of the communication terminals; and a round-trip delay time calculation unit which calculates a round-trip delay time that occurs in a communication with the second communication terminal. The second communication terminal includes a target loss event rate calculation unit which calculates a target loss event rate that is to be set by the first communication terminal in a communication with the second communication terminal, based on a past transmission rate that is recorded in the communication history and has been realized in the communication with the second communication terminal, and on the round-trip delay time that occurs in the communication with the second communication terminal. The first communication terminal changes a transmission rate which is set at the present time to a target transmission rate which is calculated based on the target loss event rate and the round-trip delay time. According to the transmission rate control device, when it is determined that the bandwidth that is estimated to be available in a communication through the network is rapidly changed, the transmission rate can be changed to a target bit rate in a short time period.
摘要翻译： 通过尽力而为的网络与第二通信终端通信的第一通信终端包括：通信历史存储单元，其中为每个通信终端存储通信历史; 以及往返延迟时间计算单元，其计算与第二通信终端的通信中发生的往返延迟时间。 第二通信终端包括：目标丢失事件发生率计算部，其基于在通信中记录的过去的传输速率来计算与第二通信终端进行通信时由第一通信终端设定的目标丢失事件发生率 历史，并且在与第二通信终端的通信中以及在与第二通信终端的通信中发生的往返延迟时间已经实现。 第一通信终端将当前设定的传输速率改变为基于目标丢失事件率和往返延迟时间计算的目标传输速率。 根据传输速率控制装置，当确定通过网络的通信中估计可用的带宽快速改变时，可以在短时间段内将传输速率改变为目标比特率。
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公开(公告)号：US08699519B2
公开(公告)日：2014-04-15
申请号：US13119296
申请日：2009-08-11
IPC分类号： H04W28/10
CPC分类号： H04L47/10
摘要： A first communication terminal which communicates with a second communication terminal through a best effort network includes: a communication history storage unit in which a communication history is stored for each of the communication terminals; and a round-trip delay time calculation unit which calculates a round-trip delay time that occurs in a communication with the second communication terminal. The second communication terminal includes a target loss event rate calculation unit which calculates a target loss event rate that is to be set by the first communication terminal in a communication with the second communication terminal, based on a past transmission rate that is recorded in the communication history and has been realized in the communication with the second communication terminal, and on the round-trip delay time that occurs in the communication with the second communication terminal. The first communication terminal changes a transmission rate which is set at the present time to a target transmission rate which is calculated based on the target loss event rate and the round-trip delay time. According to the transmission rate control device, when it is determined that the bandwidth that is estimated to be available in a communication through the network is rapidly changed, the transmission rate can be changed to a target bit rate in a short time period.
摘要翻译： 通过尽力而为的网络与第二通信终端通信的第一通信终端包括：通信历史存储单元，其中为每个通信终端存储通信历史; 以及往返延迟时间计算单元，其计算与第二通信终端的通信中发生的往返延迟时间。 第二通信终端包括：目标丢失事件发生率计算部，其基于在通信中记录的过去的传输速率来计算与第二通信终端进行通信时由第一通信终端设定的目标丢失事件发生率 历史，并且在与第二通信终端的通信中以及在与第二通信终端的通信中发生的往返延迟时间已经实现。 第一通信终端将当前设定的传输速率改变为基于目标丢失事件率和往返延迟时间计算的目标传输速率。 根据传输速率控制装置，当确定通过网络的通信中估计可用的带宽快速改变时，可以在短时间段内将传输速率改变为目标比特率。
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7.发明申请FLOW CONTROL METHOD, TRANSMITTING TERMINAL DEVICE USED IN SAME, RECEIVING TERMINAL DEVICE AND PACKET TRANSFER SYSTEM 有权流量控制方法，发送终端设备，接收终端设备和分组传输系统公开(公告)号：US20100074113A1
公开(公告)日：2010-03-25
申请号：US12443895
申请日：2007-08-29
IPC分类号： H04L12/26
CPC分类号： H04L47/10 , H04L43/0829 , H04L43/0864 , H04L47/2441 , H04L47/283
摘要： It is an object to provide a flow control method in which a packet round trip time is not excessively calculated out and its performance is not unnecessarily deteriorated even at the time of continuously connected packet transfers through relays of a plurality of receiving terminal devices. This method is directed to a flow control method in which the delivery of packets are carried out through relays of a plurality of receiving terminal devices. The method is comprised of steps (S501-S517) for acquiring a packet round trip time for every pair of neighboring terminal devices in a path of the delivery, a selection step for selecting one from the acquired round trip time in accordance with a predetermined standard, and a step (S518) for calculating a packet transmission rate on the basis of the selected round trip time, so that the round trip time of each receiving terminal device is measured and the transmission rate is calculated in accordance with the measured result. Thus, a packet round trip time is not excessively calculated out, and data transmission performance can be improved.
摘要翻译： 本发明的目的是提供一种流量控制方法，其中分组往返时间不被过度计算，即使在通过多个接收终端设备的中继连续连接分组传输时，其性能也不会不必要地劣化。 该方法涉及一种流控制方法，其中通过多个接收终端设备的中继进行分组传送。 该方法包括用于在传送路径中获取每对相邻终端设备的分组往返时间的步骤（S501-S517），根据预定标准从获取的往返行程时间中选择一个的选择步骤 以及基于所选择的往返时间计算分组传输速率的步骤（S518），从而测量每个接收终端设备的往返时间，并根据测量结果计算传输速率。 因此，分组往返时间不会被过度计算出来，并且可以提高数据传输性能。
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公开(公告)号：US08782481B2
公开(公告)日：2014-07-15
申请号：US12443007
申请日：2008-07-03
申请人： Eiichi Muramoto , Kazunobu Konishi , Takahiro Yoneda , Masashi Kobayashi , Ichiro Takei , Taisuke Matsumoto
发明人： Eiichi Muramoto , Kazunobu Konishi , Takahiro Yoneda , Masashi Kobayashi , Ichiro Takei , Taisuke Matsumoto
CPC分类号： H04L1/1877 , H04L1/1887 , H04L12/1854 , H04L12/1868 , H04L43/0858 , H04L69/40 , H04L2001/0093
摘要： A receiving terminal is provided that prevents a load on a network near a receiving terminal from increasing when a retransmission request is made to a plurality of other terminals, and enables the probability of being able to compensate for a lost packet by means of a retransmission packet to be increased. In a receiving terminal that transmits a retransmission request for compensating for a lost packet lost in a network, a measurement section measures a time period corresponding to a distance in the network between the receiving terminal and a plurality of receiving terminals, a calculation section calculates for each of the receiving terminals a float (spare time period) found by subtracting the current time and a time period measured by the measurement section from a playback time at which a retransmitted packet is played back, and a decision section decides retransmission request transmission timing and a retransmission request transmission destination for each of the receiving terminals based on the calculated floats.
摘要翻译： 提供了一种接收终端，当向多个其他终端进行重发请求时，防止接收终端附近的网络上的负载增加，并且能够通过重传分组来补偿丢失分组的概率 增加。 在发送用于补偿在网络中丢失的丢失分组的重发请求的接收终端中，测量部分测量与接收终端和多个接收终端之间的网络中的距离对应的时间段，计算部分计算 每个接收终端通过从重放分组被重放的重放时间减去当前时间和由测量部分测量的时间段所发现的浮动（空闲时间段），并且决定部分确定重传请求传输定时， 基于所计算出的浮点的每个接收终端的重发请求发送目的地。
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公开(公告)号：US08259724B2
公开(公告)日：2012-09-04
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
CPC分类号： H04L12/44 , H04L1/1887 , H04L2001/0093
摘要： A data transmitting apparatus makes it possible to send out a retransmitting packet at early timing even when a delivery tree structure is unclear. A transmitting terminal device including this data transmitting apparatus is includes a retransmitting request receiver that receives a data retransmitting request, a receiving terminal device relevancy updater 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 the object of the retransmitting request sent by the first data receiving device, and a retransmitting destination selector that estimates a delivery tree from the history stored by the receiving terminal device relevancy updater when the retransmitting destination selector receives the retransmitting request from the first data receiving device and selects, another data receiving device positioned downstream of the first data receiving device in the estimated delivery tree.
摘要翻译： 即使在传送树结构不清楚的情况下，数据发送装置也可以在早期定时发送重发分组。 包括该数据发送装置的发送终端装置包括接收数据重传请求的重发请求接收者，存储从第一数据接收装置发送的重传请求的接收次数的过去历史的接收终端装置相关更新器，以及 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发请求的对象与由第一数据接收发送的重传请求的对象相同 设备和重传目的地选择器，当所述重传目的地选择器从所述第一数据接收装置接收到所述重传请求时，从所述接收终端装置相关性更新器所存储的历史中估计传送树，并选择位于所述第一接收装置的下游的另一数据接收装置 数据接收 ving设备在估计交付树。
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10.发明授权Flow control method, transmitting terminal device used in same, receiving terminal device and packet transfer system 有权流量控制方法，使用的发送终端设备，接收终端设备和分组传送系统公开(公告)号：US08031608B2
公开(公告)日：2011-10-04
申请号：US12443895
申请日：2007-08-29
IPC分类号： H04L12/26
CPC分类号： H04L47/10 , H04L43/0829 , H04L43/0864 , H04L47/2441 , H04L47/283
摘要： It is an object to provide a flow control method in which a packet round trip time is not excessively calculated out and its performance is not unnecessarily deteriorated even at the time of continuously connected packet transfers through relays of a plurality of receiving terminal devices. This method is directed to a flow control method in which the delivery of packets are carried out through relays of a plurality of receiving terminal devices. The method is comprised of steps (S501-S517) for acquiring a packet round trip time for every pair of neighboring terminal devices in a path of the delivery, a selection step for selecting one from the acquired round trip time in accordance with a predetermined standard, and a step (S518) for calculating a packet transmission rate on the basis of the selected round trip time, so that the round trip time of each receiving terminal device is measured and the transmission rate is calculated in accordance with the measured result. Thus, a packet round trip time is not excessively calculated out, and data transmission performance can be improved.
摘要翻译： 本发明的目的是提供一种流量控制方法，其中分组往返时间不被过度计算，即使在通过多个接收终端设备的中继连续连接分组传输时，其性能也不会不必要地劣化。 该方法涉及一种流控制方法，其中通过多个接收终端设备的中继进行分组传送。 该方法包括用于在传送路径中获取每对相邻终端设备的分组往返时间的步骤（S501-S517），根据预定标准从获取的往返行程时间中选择一个的选择步骤 以及基于所选择的往返时间计算分组传输速率的步骤（S518），从而测量每个接收终端设备的往返时间，并根据测量结果计算传输速率。 因此，分组往返时间不会被过度计算出来，并且可以提高数据传输性能。
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