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公开(公告)号：US20230370173A1
公开(公告)日：2023-11-16
申请号：US18226245
申请日：2023-07-25
CPC分类号： H04B17/101 , H04B17/0085
摘要： A test system includes a radio frequency (RF) shielded chamber and an antenna array in the RF shielded chamber. The antenna array includes groups of antenna elements and power combiners. Each group of antenna elements is matched to a matching group of antenna elements by virtue of being coupled to a respective power combiner for both the group and the matching group. The antenna array is configured, by virtue of spacing apart the antenna elements by at least half of a wavelength of a test signal for testing a wireless device in the RF chamber, so that power delivered to output ports of the antenna array is substantially uniform regardless of where the wireless device is placed within the RF chamber.
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2.发明授权公开(公告)号：US11337088B2
公开(公告)日：2022-05-17
申请号：US16765517
申请日：2018-12-28
IPC分类号： G01R29/08 , G01R29/10 , H04B7/0408 , H04B7/06 , H04B17/318 , H04B17/391 , H04W16/28 , H04W24/06 , H04W24/08 , H04W24/10 , H04W84/04 , H04W88/18 , H04W92/12
摘要： A test apparatus includes: a communication interface for connection to a enodeb of a mobile telecommunication network provided with beamforming functionality, the communication interface being configured to receive communication traffic between the enodeb and a mobile terminal coupled in communication to the enodeb (3); a beamforming-testing unit, configured to receive communication-channel-quality signals (RSRPS) corresponding to each communication beam (B1, B2, . . . , BN), the communication-channel-quality signals (RSRPS) representing a signal power received by the mobile terminal. The beamforming-testing unit checks whether communication settings of the enodeb in relation to selection of the communication beams (B1, B2, . . . , BN) are consistent with the communication-channel-quality signals (RSRPS).
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3.发明授权公开(公告)号：US11012327B2
公开(公告)日：2021-05-18
申请号：US15949578
申请日：2018-04-10
IPC分类号： G06F9/455 , H04L12/26 , H04L12/801 , H04L12/851 , H04L29/06 , H04L29/08
摘要： Systems and methods are disclosed for drop detection and protection with respect to packet monitoring in virtual processing environments. Tap agents monitor and capture packets from the network traffic associated with network applications running within these virtual processing environments. Sequence numbers are added in packet encapsulation before tap packets are forwarded to tool agents. The tool agents then use the sequence numbers to detect packet drops within the tap packets. After drop detection, the tool agents send drop detection messages to an agent controller, and the agent controller generates and sends reconfiguration messages to the tap agents based upon the drop detection messages. The tool agents can also send drop detection messages directly to the tap agents. The tap agents adjust their operations based upon the reconfiguration messages and/or the drop detection messages to reduce packet drops within subsequent tap packets communications.
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公开(公告)号：US10903985B2
公开(公告)日：2021-01-26
申请号：US16113360
申请日：2018-08-27
发明人： Matthew R. Bergeron
摘要： A method executed by a dynamic session key acquisition (DSKA) engine residing in a virtual environment includes receiving session decryption information extraction instructions that configure the DSKA engine to obtain session decryption information for at least one communication session involving a virtual machine and obtaining the session decryption information from the virtual machine in accordance with the session decryption information extraction instructions. The session decryption information includes cryptographic keys utilized by an application server instance in the virtual machine to establish the at least one communication session. The session decryption information obtained from the virtual machine is stored and provided to a network traffic monitoring (NTM) agent. The NTM agent utilizes the session decryption information to decrypt copies of encrypted network traffic flows belonging to the at least one communication session involving the virtual machine.
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5.发明授权公开(公告)号：US10715378B2
公开(公告)日：2020-07-14
申请号：US15692152
申请日：2017-08-31
发明人： Stefan Johansson
IPC分类号： H04L12/26 , G06F11/34 , H04L12/24 , H04L12/701
摘要： Systems and methods are disclosed for hash-based selection of network packets for packet flow sampling in network communication systems. Input packets associated with packet flows within a network communication system are received by a hash-based sampler. The hash-based sampler then generates hash values for the input packets based upon fields within the input packets. These fields are selected to identify packet flows for the input packets. The hash values for the input packets are then compared to a mask. The mask is configured to determine a subset of packet flows for which to forward packets. Based upon this comparison, certain input packets are selected to be forwarded for further processing, and non-selected packets are discarded. The further processing can include processing the selected input packets to generate flow statistics data (e.g., IPFIX) for the selected input packets.
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公开(公告)号：US10680917B2
公开(公告)日：2020-06-09
申请号：US15791997
申请日：2017-10-24
发明人： Stefan Johansson , David W. McGhee
IPC分类号： H04L12/26 , H04L12/939
摘要： Traffic differentiator systems for network devices and related methods are disclosed that include automatic port order determination. The disclosed embodiments includes input ports that receive a first stream of packets and a second stream of packets and a packet difference processor that operates in a learning mode and a normal mode. In the learning mode of operation, the packet difference processor automatically determines a port order representing whether the first stream of packets for the first port or the second stream of packets for the second port represents a first in time version of received packets. In the normal mode of operation, the packet difference processor uses the port order determination to facilitate determination of difference packets between the first stream of packets and the second stream of packets.
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公开(公告)号：US10678745B2
公开(公告)日：2020-06-09
申请号：US15589617
申请日：2017-05-08
IPC分类号： G06F15/177 , H04L12/24 , H04L29/06 , H04W24/08 , H04B10/077 , G02B5/20 , H04B10/114 , G06F15/76 , H04B10/116
摘要： Methods, systems, and computer readable media for providing computing device configuration information via a light transmission are disclosed. According to one method, the method occurs at a computing device. The method includes receiving configuration information including an internet protocol (IP) address assigned by a network node. The method also includes sending a transmission including the configuration information, wherein the configuration information includes the IP address, wherein the transmission includes either a visible light transmission or an infrared (IR) transmission.
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公开(公告)号：US10362048B2
公开(公告)日：2019-07-23
申请号：US15153695
申请日：2016-05-12
申请人： Ixia
IPC分类号： H04L29/06
摘要： Systems and methods are disclosed herein to provide improved online security testing of security devices and networks, including but not limited to networks containing wireless access points. In accordance with one or more embodiments and aspects thereof, a distributed online test system is disclosed that combines an online test manager with one or more remote probes to generate simulated attacks and verify their effectiveness. Such a system may offer improved capabilities such as the ability to conduct attacks over geographically distributed network topologies, the ability to assess the security functions of wireless networks, and simpler and more cost-effective online security testing.
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公开(公告)号：US10958616B2
公开(公告)日：2021-03-23
申请号：US15208590
申请日：2016-07-12
发明人： Thomas Ameling
摘要： Methods, systems, and computer readable media for network test configuration using VLAN scanning are disclosed. One method for network test configuration using VLAN scanning occurs at a first port of a network equipment test device. The method includes sending a plurality of address resolution protocol (ARP) requests to a system under test (SUT), wherein each of the plurality of ARP requests includes a different virtual local area network (VLAN) identifier (ID). The method also includes receiving an ARP response from the SUT, wherein the ARP response indicates a first VLAN ID associated with the SUT. The method further includes using the first VLAN ID when sending test packets to the SUT via the first port.
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公开(公告)号：US10924394B2
公开(公告)日：2021-02-16
申请号：US16557405
申请日：2019-08-30
发明人： Joy Chakraborty , Joydeep Banerjee
IPC分类号： H04L12/723 , H04L29/06 , H04L12/717 , H04L12/721 , H04L12/18 , H04J3/06
摘要： Methods, systems, and computer readable media for computing label-switched data communication paths are disclosed. An example method includes receiving, by a path computation element (PCE) implemented on at least one processor, synchronization status information for routing nodes in a label-switched network. The method includes receiving, by the PCE, a request for a label-switched path (LSP) from a client. The method includes determining, by the PCE, a responsive LSP based at least in part on the synchronization status information. The method includes sending, by the PCE, an explicit route object (ERO) for the responsive LSP to the client.
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