Abstract: An RF connection assembly is provided for DC to mmWave signals. The RF connection assembly includes a GTMS assembly including a shroud, glass insulation filling a portion of the shroud to define an inner recess, and a gold plated GTMS center conductor secured by the glass insulation and protruding from the inner recess; and a pin and bead assembly including an RF center conductor including a clamping mechanism having a collar, and a center socket defined by the clamping mechanism, the center socket being accessible through an opening in the collar. The collar has a smooth inner edge around a perimeter, configured to guide a tip of the GTMS center conductor into the center socket of the RF center conductor for connecting the GTMS assembly and the pin and bead assembly, minimizing scraping of the GTMS center conductor by the inner edge of the opening.

Abstract: The subject matter described herein relates to methods, systems, and computer readable media for triggering dynamic, on-demand activation of cloud-based network visibility tools. One method includes steps that occur in a network visibility platform including at least one processor. The method further includes classifying, using a classifier implemented by the at least one processor, packets or network metadata into groups of related packets or network metadata. The method further includes generating, using an event notification generator implemented by the at least one processor, event notifications based on the groups of related packets or network metadata classified by the classifier. The method further includes communicating, by the event notification generator, the event notifications to a cloud network for triggering dynamic on-demand activation of at least one cloud-based network visibility tool to process the groups of related packets or network metadata classified by the classifier.

Abstract: A system for recording and analyzing a data stream, a method for analyzing a data stream, and a computer readable memory that stores instructions that cause a computer to execute a method of analyzing a data stream are disclosed. The system includes an input port, output port, buffer, and controller. The controller identifies a segment, referred to as a new extracted data segment (EDS) of the data stream stored in a buffer, the new EDS satisfying an extraction protocol. The controller compares the new EDS to each of a plurality of reference data segments (RDSs) using a similarity protocol. A new RDS is created if the new EDS is not similar to an existing EDS. If the new EDS is similar to an RDS, the RDS is updated to list that new EDS as being similar.

Abstract: A method that occurs at a distributed ledger system includes receiving a request for calibration information associated with a first unit identifier (UID) and determining one or more UIDs associated with the first UID. The method also includes, for each of the first UID and the one or more UIDs: determining, using one or more access control rules, that a requester is permitted access to the calibration information associated with a respective UID; obtaining at least one access security key for accessing the calibration information; obtaining, from at least one block of a first distributed ledger, a digital signature associated with the calibration information associated with the respective UID; using the at least one access security key to decrypt and access the calibration information associated with the respective UID; and verifying, using the digital signature, the calibration information associated with the respective UID.

Abstract: Bypass switch systems and methods are disclosed for in-line monitoring of network traffic. Network ports receive ingress packets from a network and transmit processed packets as egress packets back to the network. Tool ports send the ingress packets to in-line network tools and receive the processed packets back from the in-line network tools. Tap output ports operate in a first configuration setting to output copies of ingress packets received by a network port and in a second configuration setting to output copies of processed packets transmitted as egress packets by a network port. For one embodiment, copies of ingress packets received by a network port are output through one tap output port, and copies of processed packets transmitted as egress packets by a network port are output through another tap output port. These packets copies are then analyzed to evaluate the operation of the in-line tools.

Abstract: A test system for testing an antenna of user equipment includes a channel emulator, an anechoic chamber, a base station emulator and a test control computer. The channel emulator supports bi-directional channel emulation and emulates wireless channel conditions with fading and without fading. The anechoic chamber is connected to the channel emulator and contains probes as well as user equipment as a device under test. The base station emulator is connected to the channel emulator and performs protocol testing with the device under test via the channel emulator without fading. The test control computer controls the other element of the test system along with a base station that is connected to the channel emulator and that performs performance testing with the device under test via the channel emulator with fading after the protocol testing is performed without fading.

Abstract: A method for testing a virtual network component deployed in a virtual private cloud (VPC) includes deploying a test agent in a first VPC. The method further includes establishing a VPC peering connection with a device under test (DUT) deployed in a second VPC separate from the first VPC. The method further includes transmitting test traffic from the test agent to the DUT over the VPC peering connection.

Abstract: Methods, systems, and computer readable media for network traffic statistics collection are disclosed. One method for network traffic statistics collection includes during testing of a system under test (SUT): receiving a first trigger message indicating a first message group context for statistics collection; receiving, from the SUT, a first test message of a plurality of test messages, wherein the first test message includes a first message group identifier (MGID) and a second MGID, wherein the first MGID is associated with the first message group context and the second MGID is associated with a second message group context; and performing, using the first MGID, statistics collection associated with the first message group context. The method may also include changing from the first message group context to the second message group context during the test and using the second message group context for statistics collection.

Abstract: Systems and methods are disclosed for subscriber sampling for network packet forwarding based upon unique subscriber identifiers. Control packets within input packets are processed to identify unique subscriber identifiers and related session identifiers, which are stored in records within a tracking table. Each input packet is analyzed to extract a session identifier and a unique subscriber identifier if present within the input packet. When a unique subscriber identifier is not present, the tracking table is accessed to determine a unique subscriber identifier associated with the session identifier extracted from the packet. The input packet is sampled based upon the unique subscriber identifier to determine whether or not to output the input packet as a sampled packet. The subscriber sampling can include hash-based sampling, dynamic function based sampling, and/or other subscriber/call based sampling methods. Sampled packets are forwarded to egress port(s) for further processing.

Abstract: An apparatus for acquiring a desired response to an electromagnetic signal includes an adaptive network that receives a feedback signal and dynamically adjusts an electrical characteristic of the adaptive network in response to the feedback signal, the adaptive network electrically cooperating with an electrical component. A measurement device measures a parameter indicative of a combined response by the electrical component and the adaptive network to an impinging electromagnetic signal. A processor identifies, in accordance with the measured parameter, the feedback signal that reduces the difference between a predetermined response and the combined response to the electromagnetic signal. A feedback generator generates the identified feedback signal and conveys the generated feedback signal to the adaptive network.

Abstract: A method of assembling a fully detachable microcircuit starts with obtaining a fabricated microcircuit housing with an upper surface, a lower surface, a first recess in the upper surface, a second recess in the lower surface, and a pin on the lower surface. A thermal layer is applied to the lower surface. A conductive elastomer signal pin connector and a ground pin connector are attached to a thin film circuit, and the thin film circuit with is inserted into the second recess with the conductive elastomer signal pin connector and the ground pin connector attached. A bonding target is applied to the upper surface. The bonding target and the microcircuit are connected with a bond wire. The microcircuit housing is screwed to a printed circuit assembly without bonding the microcircuit housing to the printed circuit assembly.

Abstract: Illustrative embodiments disclosed herein pertain to a testing apparatus for performing in-circuit tests upon a printed circuit board assembly. Each of these tests may require the use of a set of probes arranged in a customized layout. This is traditionally accomplished by using a set of predefined probe plates, some or all of which may include probes that are either redundant or duplicated amongst the various probe plates, thereby introducing an undesirable cost penalty. A testing apparatus in accordance with the disclosure incorporates a configurable probe fixture that includes a docking plate configured to support a first set of probe modules for carrying out a first test upon a printed circuit board assembly. Some or all of the probe modules can then be selectively removed or replaced by other probe modules for reconfiguring the testing apparatus to carry out other tests upon the printed circuit board assembly.

Abstract: A multilevel triggering system of a signal analysis instrument outputs a complex trigger signal. The triggering system includes a trigger controlled buffer for receiving and buffering an input signal, triggering function modules, and a triggering matrix. Each triggering function module performs a corresponding triggering function for detecting a corresponding triggering condition. The triggering matrix includes multiple triggering levels, each of which is configurable to include at least one trigger block and each trigger block being configurable to implement one of the triggering function modules. Each trigger block generates a corresponding block trigger when the triggering condition of the corresponding triggering function module is detected in the buffered input signal.

Abstract: Illustrative systems and methods disclosed herein pertain to a circuit assembly having components mounted upon a substratum element. The components are encased in a conductive sheath that may be made of metal. The conductive sheath, which is operative as a heat sink and/or an EMI shield, is structurally constructed to counteract deformation of the substratum element when the one or more components heat up during operation, or due to ambient temperature changes. In one exemplary embodiment, the conductive sheath has different thickness at different locations. An edge portion located at a transition between a first thickness and a second thickness of the conductive sheath undergoes deformation that prevents warping of the circuit assembly due to heat. In another exemplary embodiment, the conductive sheath has a gap provided between adjacent segments. The gap allows room for thermal expansion and counteracts deformation of the circuit assembly caused by heating.

Abstract: Methods, systems, and computer readable media for testing and modeling the beamforming capabilities of a device under test (DUT) are disclosed. The method includes receiving, from a DUT, system information that correlates a plurality of resources to a plurality of synchronization system (SS) blocks transmitted by the DUT and receiving, from the DUT, the plurality of SS blocks. In response to receiving the plurality of SS blocks, the method further includes sending a random access procedure (RACH) message from an emulated user equipment to the DUT via a resource that is correlated per the system information to a predefined SS block that is specified in a beam model. The method also includes analyzing a beam switch indication message sent by the DUT to confirm that the DUT has restricted communication to the emulated user equipment via a beam signal corresponding to the predefined SS block.

Abstract: A method for operating a data processing system to determine the actual frequency of a transmitter LO in a transmitter that up converts a repetitive input time domain signal to a repetitive RF signal is disclosed. The method includes receiving a repetitive RF signal resulting from up converting the input time domain signal and assuming a value for the transmitter LO frequency. The received signal is down converted to an IF signal using the transmitter LO frequency, and digitizes to form a time domain record, The time domain record is converted to a sequence of frequency spectra, each frequency spectrum is characterized by a time index and a plurality of plurality of phasors. The frequency difference between the assumed LO transmitter and an actual LO transmitter frequency is determined by fitting the sequence of frequency spectra to a phase tracker function of the time index and the frequency difference.

Abstract: A tunable filter device includes a wavelength dependent splitter; a tuning element that tunes a characteristic wavelength of the wavelength dependent splitter to a wavelength of an optical signal; and a first optical coupler that splits the optical signal into an input optical signal input to the wavelength dependent splitter and a reference optical signal, where a first output outputs a band stop filtered portion and a second output outputs a band pass filtered portion of the input optical signal. The device further includes a second optical coupler that combines the reference optical signal with the band stopped filtered portion to provide a coupled optical signal; a photodiode that provides at a photocurrent indicating a difference between the wavelength of the optical signal and the characteristic wavelength; and a control loop that provides a control signal for automatically tuning the characteristic wavelength based at least in part on the photocurrent.

Abstract: According to one method, the method occurs at a network equipment test device. The method includes receiving source code metadata derived from one or more source code files for programming a packet forwarding plane of a network node; analyzing the source code metadata to generate test metadata, wherein analyzing the source code metadata to determine the test metadata includes identifying source code metadata portions that indicate elements to test and determining the test metadata based on the elements; generating, using the test metadata, one or more test plans for testing the network node or an application programming interface (API) associated with the network node; and testing the network node or the API using the one or more test plans.

Abstract: Systems and methods are disclosed for location based deployment of test agents in a cloud environment based upon deployment information for previously placed customer processing nodes. The cloud environment is hosted by servers operating to provide cloud services within two or more server zones. A test controller receives deployment information about applications operating with the cloud environment, analyzes the deployment information to determine locations within the cloud environment for deployment of test agents where the locations are associated with a plurality of the applications, sends resource requests to a cloud management controller to deploy the test agents at the locations, and receives test results from the test agents deployed by the cloud management controller at the locations based upon the resource requests. Monitor agents operating along with applications deployed in the cloud can also be used to provide the deployment information to the test controller.

Abstract: Methods, systems, and computer readable media for measuring preempted frame delivery latency in a frame-preemption-capable network are disclosed. One method includes, in a network test tool including at least one processor, simulating frame preemption by generating a plurality of simulated preempted frame fragments of a simulated preempted frame and an express frame. The method further includes inserting a last fragment generation timestamp in a last fragment of the simulated preempted frame fragments, wherein inserting the last fragment generation timestamp in a last fragment of the simulated preempted frame fragments includes inserting the last fragment generation timestamp in a portion of the last fragment that will remain in a last fragment of a refragmentation of the simulated preempted frame in the event that the simulated preempted frame is reassembled and refragmented. The method further includes transmitting the simulated preempted frame fragments and the express frame to a device under test (DUT).