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2. 发明授权

US5612949A Method and apparatus for determining network delays 失效
标题翻译：用于确定网络延迟的方法和装置
公开(公告)号：US5612949A
公开(公告)日：1997-03-18
申请号：US435551
申请日：1995-05-05
申请人： Steven N. Bennett
发明人： Steven N. Bennett
IPC分类号： H04M3/36 , H04L12/26 , H04L12/56 , H04B17/00
CPC分类号： H04L47/28 , H04L43/0852 , H04L47/10 , H04L47/11 , H04L43/022 , H04L43/12
摘要： A method is disclosed for determining delays in a network (10) carrying messages, such as an SS7 signalling network or a TCP/IP network. The method involves monitoring the network (10) at a predetermined location to detect first messages (REQ) and second messages (ACK) of respective predetermined categories (X, Y), the first and second messages each producing a respective time-dependent loading of the network and the second messages being caused by the first messages whereby the loadings vary in a similar manner with time but with the loading produced by the second messages being offset from that produced by the first messages. Load measures (L.sub.X,L.sub.Y) are then derived for the first and second messages (REQ, ACK), each load measure being derived by counting the number of messages of the category concerned that are detected in a predetermined time interval. These load measures (L.sub.X,L.sub.Y) are thereafter used to determine the offset between the network loadings produced by the first and second messages, this offset providing a network-delay measurement.
摘要翻译：公开了一种用于确定承载诸如SS7信令网络或TCP / IP网络之类的消息的网络（10）中的延迟的方法。该方法包括在预定位置监视网络（10）以检测各个预定类别（X，Y）的第一消息（REQ）和第二消息（ACK），第一和第二消息各自产生相应的时间相关负载网络和第二消息是由第一消息引起的，由此负载以与时间相似的方式变化，但是由第二消息产生的负载偏离由第一消息产生的负载。然后针对第一和第二消息（REQ，ACK）导出负载度量（LX，LY），每个负载度量是通过对在预定时间间隔内检测到的所涉类别的消息数进行计数得到的。然后，这些负载测量（LX，LY）用于确定由第一和第二消息产生的网络负载之间的偏移，该偏移提供网络延迟测量。

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