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21. 发明授权

US08259704B2 System and method for load sharing among a plurality of resources 有权
标题翻译：用于多个资源之间负载共享的系统和方法
公开(公告)号：US08259704B2
公开(公告)日：2012-09-04
申请号：US11112585
申请日：2005-04-22
申请人： San-Qi Li
发明人： San-Qi Li
IPC分类号： H04L12/66
CPC分类号： H04Q3/0045 , H04L47/125 , H04Q3/0025
摘要： A media gateway includes a non-packet switching matrix operable to switch non-packetized data, a packet switching matrix operable to switch packetized data, a plurality of processing resources coupled to the non-packet and packet switching matrices, each processing resource processing a substantially equal load of multimedia sessions processed by the media gateway without inactive protecting resources.
摘要翻译：媒体网关包括可操作以切换非分组数据的非分组交换矩阵，可操作以切换分组数据的分组交换矩阵，耦合到非分组和分组交换矩阵的多个处理资源，每个处理资源处理基本上由媒体网关处理的多媒体会话的相等负载，而无需保护资源。

22. 发明授权

US07995557B2 System and method for determining network quality for voIP calls 有权
标题翻译：用于确定VoIP呼叫的网络质量的系统和方法
公开(公告)号：US07995557B2
公开(公告)日：2011-08-09
申请号：US11078247
申请日：2005-03-11
申请人： San-Qi Li , Mathew C. Perry , Chen Cao , Ya-Nan Long
发明人： San-Qi Li , Mathew C. Perry , Chen Cao , Ya-Nan Long
IPC分类号： H04L12/66 , G08C15/00
CPC分类号： H04L45/00 , H04L41/5087 , H04L43/08 , H04L43/0829 , H04L43/0852 , H04L43/087 , H04L43/50 , H04L65/80
摘要： A method of measuring network quality for VoIP calls comprises setting up a test call from a local IP endpoint to a remote IP endpoint reachable by a logical trunk group associated with the local IP endpoint, receiving statistical data regarding the test call, tearing down the test call, processing the statistical data and generating measurement results, and routing a VoIP call using a route selected based at least in part on the measurement results.
摘要翻译：测量VoIP呼叫的网络质量的方法包括建立从本地IP端点到由与本地IP端点相关联的逻辑中继组可达的远程IP端点的测试呼叫，接收关于测试呼叫的统计数据，拆除测试呼叫，处理统计数据并产生测量结果，以及使用至少部分地基于测量结果选择的路由来路由VoIP呼叫。

23. 发明申请

US20050076108A1 Methods and systems for per-session network address translation (NAT) learning and firewall filtering in media gateway 有权
标题翻译：媒体网关中每会话网络地址转换（NAT）学习和防火墙过滤的方法和系统
公开(公告)号：US20050076108A1
公开(公告)日：2005-04-07
申请号：US10676240
申请日：2003-10-01
申请人： San-Qi Li , Weijun Lee , David Lu
发明人： San-Qi Li , Weijun Lee , David Lu
IPC分类号： G06F15/16 , G06F15/173 , H04B20060101 , H04L29/06 , H04L29/12
CPC分类号： H04L29/12009 , H04L29/1233 , H04L29/12509 , H04L61/2567 , H04L63/0236 , H04L63/0254 , H04L63/029 , H04L65/1023
摘要： Methods and systems for per-session NAT learning and firewall filtering are disclosed. Media packets associated with a call/session are received and processed at a media gateway. For the first few received media packets associated with a session, the media gateway uses various unique methods to learn the actual source IP address and UDP port assigned to the remote communication terminal by its customer-premises Network Address Translators (NATs) to the media flows of the current session. After the remote IP and UDP are learned, the media gateway reconfigures its firewall filtering function to check both the dynamically learned remote IP and UDP and the locally assigned IP and UDP of the current session. The per-session NAT learning function removes reachability issues in VoIP deployment, and the per-session firewall filtering function enhances security protection in VoIP deployment.
摘要翻译：披露了每会话NAT学习和防火墙过滤的方法和系统。与呼叫/会话相关联的媒体分组在媒体网关处被接收和处理。对于与会话相关联的前几个接收到的媒体分组，媒体网关使用各种独特的方法来了解其客户端网络地址转换器（NAT）分配给远程通信终端的实际源IP地址和UDP端口到媒体流的当前会话。在学习到远程IP和UDP后，媒体网关重新配置其防火墙过滤功能，以检查动态学习的远程IP和UDP以及当前会话的本地分配的IP和UDP。每会话NAT学习功能消除了VoIP部署中的可达性问题，每会话防火墙过滤功能增强了VoIP部署中的安全保护。

24. 发明授权

US5583792A Method and apparatus for integration of traffic measurement and queueing performance evaluation in a network system 失效
标题翻译：在网络系统中集成流量测量和排队性能评估的方法和装置
公开(公告)号：US5583792A
公开(公告)日：1996-12-10
申请号：US251742
申请日：1994-05-27
申请人： San-Qi Li , Chia-Lin Hwang
发明人： San-Qi Li , Chia-Lin Hwang
IPC分类号： H04L12/26 , H04L12/56 , H04M3/36 , H04Q3/00 , H04B3/40
CPC分类号： H04L43/00 , H04L12/26 , H04M3/36 , H04Q3/0091 , H04L2012/5684 , H04Q2213/13522 , H04Q2213/13561
摘要： A method and apparatus which provides a general solution technique for the integration of traffic measurement and queueing analysis. The frequency-domain approach is used to combine the advanced techniques in two areas: signal processing and queueing analysis. The tool comprises three basic components: traffic measurement, statistical matching and queueing analysis. In the traffic measurement component, standard signal processing techniques are used to obtain the steady-state and second-order statistics of a traffic stream. In the statistical matching component, new techniques are used for the construction of a special class of Markov chain modulated rate processes, the so-called circulant modulated rate process, that can statistically match with each given traffic stream (or superposition of different traffic streams). In the queueing analysis component, both steady state and time dependent solutions of buffer size, link capacity, loss rate, overload control and queuing behavior are obtained by the generalized Folding-algorithm. Comprehensive numerical examples show the great potential of the present invention to solve measurement-based traffic management issues.
摘要翻译：一种提供用于整合流量测量和排队分析的通用解决技术的方法和装置。频域方法用于将先进技术结合在两个方面：信号处理和排队分析。该工具包括三个基本组成部分：流量测量，统计匹配和排队分析。在流量测量部件中，使用标准信号处理技术来获得业务流的稳态和二阶统计。在统计匹配组件中，新技术被用于构建马尔科夫链调制速率过程的特殊类别，即所谓的循环调制速率过程，可以与每个给定的业务流（或不同业务流的叠加）进行统计匹配，。在排队分析组件中，通过广义折叠算法获得缓冲区大小，链路容量，丢失率，过载控制和排队行为的稳态和时间依赖解。全面的数值实例显示出本发明解决基于测量的交通管理问题的巨大潜力。

25. 发明授权

US07948985B2 Methods, systems, and computer program products for source-aware IP routing at a media gateway 有权
标题翻译：媒体网关的源感知IP路由的方法，系统和计算机程序产品
公开(公告)号：US07948985B2
公开(公告)日：2011-05-24
申请号：US11961658
申请日：2007-12-20
申请人： David Z. Lu , Edward Y. Qian , Rupert Zhu , San-Qi Li
发明人： David Z. Lu , Edward Y. Qian , Rupert Zhu , San-Qi Li
IPC分类号： H04L12/28
CPC分类号： H04L45/00 , H04L29/12783 , H04L45/34 , H04L45/72 , H04L45/748 , H04L61/35 , H04L65/104 , H04L65/1069
摘要： The subject matter described herein includes methods, systems, and computer program products for source-aware IP routing at a media gateway. According to one aspect, a method for source-aware IP routing at a media gateway is provided. The method includes providing a packet including a layer 3 source address and a layer 3 destination address at a media gateway having a source-aware routing table. Using the destination address included in the packet, at least one entry corresponding to the destination address is located in the source-aware routing table, where the located entry contains at least a portion of a source IP address, at least a portion of a destination IP address and routing information including an interface identifier and a next hop identifier. From among the at least one located entry corresponding to the destination IP address information, at least one entry corresponding to the source IP address included in the packet is located. Based on the routing information located in the routing table, the packet is routed to the destination.
摘要翻译：本文描述的主题包括用于媒体网关处的源感知IP路由的方法，系统和计算机程序产品。根据一个方面，提供了一种在媒体网关处的源感知IP路由的方法。该方法包括在具有源感知路由表的媒体网关处提供包括第3层源地址和第3层目的地址的分组。使用包含在包中的目的地地址，与目的地地址相对应的至少一个条目位于源感知路由表中，其中所述定位条目包含源IP地址的至少一部分，目的地的至少一部分 IP地址和路由信息，包括接口标识符和下一跳标识符。从与目的地IP地址信息相对应的至少一个位置条目中，定位与分组中包含的源IP地址对应的至少一个条目。基于位于路由表中的路由信息，数据包被路由到目的地。

26. 发明申请

US20080089327A1 Methods, systems and computer program products for storing communication session information at a network interface module 有权
标题翻译：用于在网络接口模块处存储通信会话信息的方法，系统和计算机程序产品
公开(公告)号：US20080089327A1
公开(公告)日：2008-04-17
申请号：US11580224
申请日：2006-10-12
申请人： David Z. Lu , San-Qi Li
发明人： David Z. Lu , San-Qi Li
IPC分类号： H04L12/56
CPC分类号： H04L67/1097 , H04L45/7453 , H04L65/103 , H04L65/605 , H04L65/608 , H04L67/06
摘要： The subject matter described herein includes methods, systems, and computer program products for storing communication session information at a network interface module. One method described herein includes receiving a plurality of RTCP packets associated with a communication session at a network interface module. RTCP information is extracted from at least one of the packets. The extracted RTCP information is stored in memory local to the network interface module.
摘要翻译：本文描述的主题包括用于在网络接口模块处存储通信会话信息的方法，系统和计算机程序产品。本文描述的一种方法包括在网络接口模块处接收与通信会话相关联的多个RTCP分组。从至少一个分组提取RTCP信息。提取的RTCP信息存储在网络接口模块本地的存储器中。

27. 发明申请

US20060092927A1 Voice packet switching systems and methods 有权
公开(公告)号：US20060092927A1
公开(公告)日：2006-05-04
申请号：US11297941
申请日：2005-12-09
申请人： San-Qi Li , Stephen Barnes , Jingdong Ye
发明人： San-Qi Li , Stephen Barnes , Jingdong Ye
IPC分类号： H04L12/66 , H04L12/56
CPC分类号： H04L49/606 , H04L12/6402 , H04L2012/5656 , H04L2012/5667 , H04L2012/5671
摘要： A switching system includes at least one packet processing circuit interfacing with at least one packet transmission link. The switching system further includes a switch fabric coupled to the at least one packet processing circuit, whereby the switch fabric is operable to switch between channels receiving and transmitting data over the at least one packet transmission link and channels receiving and transmitting data over at least one non-packet transmission link interfaced by the switch fabric.

28. 发明授权

US6144639A Apparatus and method for congestion control in high speed networks 失效
标题翻译：高速网络中拥塞控制的装置和方法
公开(公告)号：US6144639A
公开(公告)日：2000-11-07
申请号：US922457
申请日：1997-09-03
申请人： Yongdong Zhao , San-Qi Li , Sam Sigarto
发明人： Yongdong Zhao , San-Qi Li , Sam Sigarto
IPC分类号： H04L12/56 , G08C15/00
CPC分类号： H04L12/5602 , H04L2012/5635
摘要： An adjustable bit rate (ABR) feedback control scheme is provided where the effects of multiloop delays and high priority traffic transmission are built into the control model. The data traffic is filtered by a low pass filter. Then, the low frequency bandwidth of the filtered traffic is measured and compared to a predetermined threshold. If the measured value exceeds the threshold, the ABR traffic flow is reduced. If the measured value is less than the threshold, the ABR traffic flow is increased. In addition, a General Prediction Control (GPC) method may be applied to the control model for optimal performance. An object of the invention is to minimize the unused link capacity subject to no congestion, where the ABR traffic is adapted to the low frequency variation of high priority traffic flow for high efficiency.
摘要翻译：提供了一种可调节比特率（ABR）反馈控制方案，其中多循环延迟和高优先级流量传输的影响内置在控制模型中。数据流量由低通滤波器滤波。然后，测量滤波业务的低频带宽并与预定阈值进行比较。如果测量值超过阈值，ABR流量就会减少。如果测量值小于阈值，则ABR业务流量增加。此外，通用预测控制（GPC）方法可以应用于控制模型以获得最佳性能。本发明的一个目的是最大限度地减少没有拥塞的未使用的链路容量，其中ABR业务适用于高效率的高优先级业务流的低频变化。

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