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1. 发明申请

WO2017146826A1 METHODS, SYSTEMS, AND COMPUTER READABLE MEDIA FOR DISTRIBUTING MONITORED NETWORK TRAFFIC 审中-公开
标题翻译：用于分发监控网络流量的方法，系统和计算机可读介质
公开(公告)号：WO2017146826A1
公开(公告)日：2017-08-31
申请号：PCT/US2017/012740
申请日：2017-01-09
申请人： IXIA
发明人： RAJ, Avinash Raj Nambi , SCHWENK, Alan, Richard , CHIRIACESCU, Gabriel
IPC分类号： H04W28/08 , H04W24/08 , H04W12/08
CPC分类号： H04W28/08 , H04W24/08
摘要： The subject matter described herein relates to methods, systems, and computer readable media for test system connection resiliency. In some examples, a method for distributing monitored network traffic includes monitoring S1 -MME traffic and S6a traffic in a core network of a telecommunications network. The method includes decrypting encrypted S1 -MME traffic using information extracted from the S6a traffic. The method includes load balancing between a plurality of monitoring nodes using the decrypted S1 -MME traffic.
摘要翻译：这里描述的主题涉及用于测试系统连接弹性的方法，系统和计算机可读介质。在一些示例中，用于分发所监控的网络业务的方法包括监控电信网络的核心网络中的S1-MME业务和S6a业务。该方法包括使用从S6a业务中提取的信息对加密的S1-MME业务进行解密。该方法包括使用解密的S1-MME业务在多个监控节点之间进行负载平衡。

2. 发明申请

WO2016077084A1 METHODS, SYSTEMS, AND COMPUTER READABLE MEDIA FOR MONITORING AND/OR TESTING NETWORK COMMUNICATIONS 审中-公开
标题翻译：用于监控和/或测试网络通信的方法，系统和计算机可读介质
公开(公告)号：WO2016077084A1
公开(公告)日：2016-05-19
申请号：PCT/US2015/058297
申请日：2015-10-30
申请人： IXIA
发明人： REGEV, Alon , JACKSON, Stephen, Samuel , LAHIRI, Abhijit
IPC分类号： H04L12/26
CPC分类号： H04N17/004 , H04L43/062 , H04L43/08 , H04L43/10 , H04L43/12 , H04L43/50
摘要： Methods, systems, and computer readable media for monitoring and/or testing network communications are disclosed. A method for monitoring network communications includes receiving packets from a network connected device, determining features associated with either the network connected device or a communications network to which the network connected device is connected by actively or passively monitoring or testing the packets, and automatically switching between passively monitoring or testing the packets and actively monitoring or testing the packets in response to receiving a packet carrying instructions.
摘要翻译：公开了用于监测和/或测试网络通信的方法，系统和计算机可读介质。一种用于监测网络通信的方法包括从网络连接设备接收分组，通过主动地或被动地监视或测试分组来确定与网络连接的设备或网络连接的设备所连接的通信网络相关联的特征，以及自动切换响应于接收到携带指令的分组，被动地监视或测试分组并主动监视或测试分组。

3. 发明申请

WO2015112916A1 METHODS, SYSTEMS AND COMPUTER READABLE MEDIA FOR TESTING NETWORK DEVICES USING SIMULATED APPLICATION TRAFFIC 审中-公开
标题翻译：使用模拟应用交通测试网络设备的方法，系统和计算机可读介质
公开(公告)号：WO2015112916A1
公开(公告)日：2015-07-30
申请号：PCT/US2015/012781
申请日：2015-01-23
申请人： IXIA
发明人： NISTOR, Marius, Pavel , DEDU, Florin-Fabian
IPC分类号： H04L12/26
CPC分类号： H04L43/50 , H04L41/142
摘要： Methods, systems, and computer readable media for testing network devices using simulated application traffic are disclosed. One method includes steps implemented in a network equipment test device including at least one processor. The method includes emulating data transfer operations of a plurality of server applications. The method further includes receiving application traffic from a plurality of different client applications. The method further includes queuing incoming connections received from the client applications. The method further includes, for each of the connections, attempting to correlate application-level data with one of the emulated server applications. The method further includes, in response to successful correlation of the received application-level data one of the emulated server applications, performing application-specific processing for the emulated server application. Performing application-specific processing includes sending data from an emulated server application to a client application through a device under test.
摘要翻译：公开了使用模拟应用业务测试网络设备的方法，系统和计算机可读介质。一种方法包括在包括至少一个处理器的网络设备测试设备中实现的步骤。该方法包括模拟多个服务器应用的数据传输操作。该方法还包括从多个不同的客户端应用接收应用流量。该方法还包括排队从客户端应用接收的传入连接。该方法还包括针对每个连接，尝试将应用级数据与仿真服务器应用之一相关联。该方法还包括响应于所接收的应用级数据之一对所仿真的服务器应用程序之一进行成功的相关，对仿真的服务器应用执行应用特定的处理。执行应用程序特定的处理包括通过被测设备将数据从仿真服务器应用程序发送到客户端应用程序。

4. 发明申请

WO2015023369A1 METHODS, SYSTEMS, AND COMPUTER READABLE MEDIA FOR MODELING A WORKLOAD 审中-公开
标题翻译：用于建模工作负载的方法，系统和计算机可读介质
公开(公告)号：WO2015023369A1
公开(公告)日：2015-02-19
申请号：PCT/US2014/045658
申请日：2014-07-08
申请人： IXIA
发明人： LAHIRI, Abhijit , PANDA, Sumit , PUTATUNDA, Amritam
IPC分类号： G06F9/50 , G06F11/26
CPC分类号： G06F17/30067 , G06F9/455 , G06F11/3414 , G06F11/3433
摘要： Methods, systems, and computer readable media for modeling a workload are disclosed. According to one method, the method occurs at a computing platform. The method includes providing for user configuration of a file system associated with a device under test (DUT), providing for user configuration of at least one emulated user, and providing for user configuration of interaction behavior between the at least one emulated user and the file system.
摘要翻译：公开了用于建模工作负载的方法，系统和计算机可读介质。根据一种方法，该方法发生在计算平台上。该方法包括提供与待测设备（DUT）相关联的文件系统的用户配置，为至少一个仿真用户的用户配置提供用户配置，以及提供至少一个仿真用户与文件之间的交互行为的用户配置系统。

5. 发明申请

WO2003030421A1 METHODS AND SYSTEMS FOR TESTING STATEFUL NETWORK COMMUNICATIONS DEVICES 审中-公开
标题翻译：用于测试状态网络通信设备的方法和系统
公开(公告)号：WO2003030421A1
公开(公告)日：2003-04-10
申请号：PCT/US2002/030930
申请日：2002-09-30
申请人： IXIA COMMUNICATIONS , HANNEL, Clifford, L. , SCHAFER, Douglas, E. , GINSBERG, Errol , PEPPER, Gerald, R.
发明人： HANNEL, Clifford, L. , SCHAFER, Douglas, E. , GINSBERG, Errol , PEPPER, Gerald, R.
IPC分类号： H04J1/16
CPC分类号： H04L29/06 , H04L43/50 , H04L67/1002 , H04L67/1008 , H04L67/1029 , H04L69/16 , H04L69/161 , H04L69/163 , H04L2029/06054
摘要： Methods and systems (102, 104) for testing stateful network communications devices are disclosed. According to one test method, stateful and simulated stateless sessions are established with a device under test (106). Packets are sent to the device under test (106) over the stateful and stateless connections. Information received on the stateful connections is used to alter test conditions on the stateless connections. As a result, a realistic mix of network traffic can be achieved with a reduced amount of hardware.
摘要翻译：公开了用于测试状态网络通信设备的方法和系统（102,104）。根据一种测试方法，使用被测设备（106）建立状态和模拟无状态会话。数据包通过有状态和无状态连接发送到被测设备（106）。在状态连接上收到的信息用于更改无状态连接上的测试条件。因此，可以通过减少硬件数量实现网络流量的实际组合。

6. 发明申请

WO2017192272A1 NETWORK PACKET FORWARDING SYSTEMS AND METHODS TO PUSH PACKET PRE-PROCESSING TASKS TO NETWORK TAP DEVICES 审中-公开
标题翻译：网络数据包转发系统和方法将数据包预处理任务推送到网络TAP设备
公开(公告)号：WO2017192272A1
公开(公告)日：2017-11-09
申请号：PCT/US2017/028517
申请日：2017-04-20
申请人： IXIA
发明人： ARORA, Deepesh
IPC分类号： H04L12/26 , H04L12/56 , H04L12/66 , H04L12/70
CPC分类号： H04L43/0852 , H04L43/04 , H04L43/12 , H04L45/74 , H04L47/32 , H04L63/1441
摘要： Network packet forwarding systems and methods are disclosed to push pre-processing tasks to network tap devices. In certain embodiments, packet flows from multiple monitoring points within a packet network communication system are monitored by a plurality of network tap devices to generate tapped packet flows associated with monitored network traffic flows. The tapped packet flows are transmitted from each network tap device to a tap controller, and the tap controller generates pre-processing rules based upon the tapped packet flows. Control messages including the pre-processing rules are then transmitted from the tap controller to the network tap devices, and the tapped packet flows are pre-processed at the network tap devices using the pre-processing rules to generate pre-processed packet flows. These pre-processed packet flows are then transmitted back to the tap controller where they are further processed and output to one or more destination devices.
摘要翻译：公开了网络分组转发系统和方法以将预处理任务推送到网络分接头设备。在某些实施例中，来自分组网络通信系统内的多个监视点的分组流被多个网络分接设备监视以生成与被监视的网络业务流相关联的分接的分组流。分接的分组流从每个网络分接头设备被发送到分接头控制器，并且分接头控制器基于分接的分组流来生成预处理规则。然后将包括预处理规则的控制消息从抽头控制器传送到网络抽头设备，并且使用预处理规则在网络抽头设备处对抽头分组流进行预处理，以使用预处理规则来生成预处理的分组流。这些预处理的分组流然后被传送回抽头控制器，在那里它们被进一步处理并输出到一个或多个目的地设备。

7. 发明申请

WO2016168063A1 METHODS, SYSTEMS, AND COMPUTER READABLE MEDIA FOR SYNCHRONIZING TIMING AMONG NETWORK INTERFACE CARDS (NICS) IN A NETWORK EQUIPMENT TEST DEVICE 审中-公开
标题翻译：在网络设备测试设备中网络接口卡（NICS）同步时序的方法，系统和计算机可读介质
公开(公告)号：WO2016168063A1
公开(公告)日：2016-10-20
申请号：PCT/US2016/026533
申请日：2016-04-07
申请人： IXIA
发明人： REGEV, Alon
IPC分类号： H04L12/26 , H04L7/04 , H04L29/10
CPC分类号： H04W56/0015 , H04L43/065 , H04L43/0852 , H04L43/106 , H04L43/50
摘要： Methods, systems, and computer readable media for synchronizing timing among network interface cards in a network equipment test device are disclosed. One method includes generating and sending timing synchronization measurement signals to the management network interface card and a test network interface card in the network equipment test device. The method further includes recording times of receipt of the timing synchronization measurement signals at the management network interface card and the test network interface card. The method further includes adjusting timing of the test network interface card using the times of receipt of the timing synchronization measurement signals.
摘要翻译：公开了用于在网络设备测试设备中的网络接口卡之间同步定时的方法，系统和计算机可读介质。一种方法包括向网络设备测试设备中的管理网络接口卡和测试网络接口卡生成和发送定时同步测量信号。该方法还包括在管理网络接口卡和测试网络接口卡处记录定时同步测量信号的接收时间。该方法还包括使用接收到定时同步测量信号的时间来调整测试网络接口卡的定时。

8. 发明申请

WO2015069478A1 SYSTEMS AND METHODS FOR IMPROVED WIRELESS CHANNEL ESTIMATION 审中-公开
标题翻译：改善无线信道估计的系统和方法
公开(公告)号：WO2015069478A1
公开(公告)日：2015-05-14
申请号：PCT/US2014/062393
申请日：2014-10-27
申请人： IXIA
发明人： WICKER, David, Jennings , ALEXANDER, Thomas
IPC分类号： H04L25/02 , H04L27/01
CPC分类号： H04L25/0242 , H04B7/0413 , H04L25/0204
摘要： Systems and methods are disclosed herein to provide improved channel estimation in a wireless data communication system, including but not limited to Multiple Input Multiple Output (MIMO) and Orthogonal Frequency Division Multiplexing (OFDM) communication systems. In accordance with one or more embodiments and aspects thereof, a channel estimation system is disclosed that regenerates a representation of the original transmitted signal from the received digital bitstream and selectively applies it to refine and improve channel estimation and signal equalization calculations using the data symbols contained within received frames. Such a system may offer improved capabilities such as more accurate signal reception, reduced bit error ratio, and improved Multi-User MIMO (MU-MIMO) reception.
摘要翻译：本文公开的系统和方法在无线数据通信系统中提供改进的信道估计，包括但不限于多输入多输出（MIMO）和正交频分复用（OFDM）通信系统。根据其一个或多个实施例和方面，公开了一种信道估计系统，其从所接收的数字比特流中重新生成原始发射信号的表示，并且选择性地应用信道估计系统以使用包含的数据符号来改进和改进信道估计和信号均衡计算在接收帧内。这样的系统可以提供改进的能力，例如更准确的信号接收，降低的比特误码率和改进的多用户MIMO（MU-MIMO）接收。

9. 发明申请

WO2014186747A1 METHODS, SYSTEMS, AND COMPUTER READABLE MEDIA FOR FREQUENCY SELECTIVE CHANNEL MODELING 审中-公开
标题翻译：频率选择通道建模的方法，系统和计算机可读介质
公开(公告)号：WO2014186747A1
公开(公告)日：2014-11-20
申请号：PCT/US2014/038462
申请日：2014-05-16
申请人： IXIA
发明人： DEVARASETTY, Prasada, Rao , SUNDHAR, Kalyan , SLYK, Roger, Alan
IPC分类号： H04B17/00
CPC分类号： H04W24/08 , H04B17/0087 , H04L5/003
摘要： The subject matter described herein includes methods, systems, and computer readable media for frequency selective channel modeling. One exemplary system includes a network equipment test device including at least one processor. The network equipment test device includes the UE emulator implemented by the at least one processor and configured to emulate a plurality of UEs that attach to and communicate with a device under test. The system further includes a frequency selective channel modeler configured to receive resource scheduling information for the UEs from the device under test, to determine channel performance categories for the UEs using the resource scheduling information and to determine values for channel quality parameters using the channel performance categories assigned to the resource blocks, which represent selected frequencies in the total channel bandwidth. The emulated UEs communicate the channel quality parameters to the device under test based on the frequency allocated for a given UE in the channel bandwidth.
摘要翻译：本文描述的主题包括用于频率选择性信道建模的方法，系统和计算机可读介质。一个示例性系统包括包括至少一个处理器的网络设备测试设备。网络设备测试设备包括由至少一个处理器实现的UE仿真器，并且被配置为模拟附接到被测设备并与其通信的多个UE。所述系统还包括频率选择性信道建模器，被配置为从所述被测设备接收所述UE的资源调度信息，以使用所述资源调度信息确定所述UE的信道性能类别，并使用所述信道性能类别来确定信道质量参数的值分配给资源块，其表示总信道带宽中的选定频率。仿真的UE基于在给定的UE在信道带宽中分配的频率将信道质量参数传送到被测设备。

10. 发明申请

WO2013096585A1 METHODS, SYSTEMS, AND COMPUTER READABLE MEDIA FOR REDUCING THE IMPACT OF FALSE DOWNLINK CONTROL INFORMATION (DCI) DETECTION IN LONG TERM EVOLUTION (LTE) PHYSICAL DOWNLINK CONTROL CHANNEL (PDCCH) DATA 审中-公开
标题翻译：方法，系统和计算机可读介质，用于减少长时间演进（LTE）物理下行链路控制信道（PDCCH）数据中的下行链路控制信息（DCI）检测的影响
公开(公告)号：WO2013096585A1
公开(公告)日：2013-06-27
申请号：PCT/US2012/070877
申请日：2012-12-20
申请人： IXIA
发明人： SUBRAMANIAN, Suresh , CHOI, Jong, Kwan , ASOKAN, Ramanathan
IPC分类号： H04W48/12
CPC分类号： H04W24/06
摘要： Methods, systems, and computer readable media for reducing the impact of false downlink control information (DCI) detection in long term evolution (LTE) physical downlink control channel (PDCCH) data are disclosed. According to one method, an LTE multi-UE simulator receives PDCCH data from an evolved node B (eNode B). The LTE multi-UE simulator applies blind DCI decoding to decode at least one DCI value from channel control elements that carry the PDCCH data. The LTE multi-UE simulator applies at least one false DCI detection countermeasure to identify as true or false DCIs from the DCIs detected using the blind decoding.
摘要翻译：公开了用于减少长期演进（LTE）物理下行链路控制信道（PDCCH）数据中的假下行链路控制信息（DCI）检测的影响的方法，系统和计算机可读介质。根据一种方法，LTE多UE模拟器从演进节点B（eNode B）接收PDCCH数据。 LTE多UE模拟器应用盲DCI解码以从携带PDCCH数据的信道控制元素解码至少一个DCI值。 LTE多UE模拟器应用至少一个虚拟DCI检测对策，以从使用盲解码检测的DCI识别为真或假DCI。

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