Abstract: Methods, computer program products, and systems are presented. The methods include, for instance: a gateway stack that includes a master, a backup, and at least one slave amongst nodes of the GS based on an election pursuant to a gateway stack protocol. The gateway stack provides gateway services for a Network Virtualization over Layer 3 (NVO3) network in a fail-safe manner by utilizing all of the nodes in the gateway stack. A data interface between the gateway stack and a switch is aggregated to evenly distribute inbound packets amongst the nodes of the gateway stack.

Abstract: A method and device for retransmission processing are provided. The method includes that: a transmission side transmits a detection indication to a receiving side, the detection indication being used to indicate the receiving side to feed back a receiving state of multiple Acknowledged Mode Data (AMD) Protocol Data Units (PDU) sent by the transmission side; the transmission side receives a state report sent by the receiving side, the state report being used to indicate a receiving state of at least one AMD PDU in the multiple AMD PDUs; and if a Sequence Number (SN) of a first AMD PDU of the at least one AMD PDU is equal to a first value, the transmission side stops transmitting the detection indication for the multiple AMD PDUs to the receiving side, the first value being less than or equal to a maximum SN in the SNs of the multiple AMD PDUs. The method and device of the embodiments of the present application are advantageous in reducing unnecessary overhead.

Abstract: In some examples, a system identifies, for a given authentication event between a plurality of devices in a network, a context comprising a set of authentication events that are temporally related to the given authentication event. The set of authentication events occur at the devices. A classifier is applied on a collection of features associated with the set of authentication events, the collection of features comprising a number of machines or a number of users associated with the set of authentication events. The system determines, based on an output of the classifier, whether the given authentication event is an unauthorized authentication event.

Abstract: The present technology discloses methods, systems, and non-transitory computer-readable media for receiving, by a relying node in an optical transport network environment, attestation information in a trail trace identifier of an optical unit from an attester node in the optical transport network environment; verifying a trustworthiness of the attester node by identifying a level of trust of the attester node from the attestation information; and controlling network service access of the attester node through the relying node in the network environment based on the level of trust of the attester node identified from the attestation information.

Abstract: Methods, non-transitory computer readable media, anomaly detection apparatuses, and network traffic management systems that generate, based on the application of one or more models and for a first flow associated with a received first set of network traffic, one or more likelihood scores and at least one flow score based on the likelihood scores. One or more of the one or more models are associated with one or more browsing patterns for a web application to which the first set of network traffic is directed. A determination is made when the flow score exceeds a threshold. A mitigation action is initiated, based on a stored policy, with respect to the first set of network traffic, when the determining indicates that the flow score exceeds the established threshold.

Abstract: Various embodiments are described herein to track and/or update the state of components within a network element. One embodiment provides for a network management system comprising a collector node including an ingest gateway to receive configuration and status data of a set of network elements coupled to the collector node via the network, the collector node further to store the configuration and status data from the set of network elements in a distributed database; a search engine to locate and retrieve the configuration and status data of a specified subset of the network elements at a specified time period; and an interface server to receive a request for the configuration and status data from an external requester, the interface server to facilitate provision of the configuration and status data in response to the request.

Abstract: Embodiments of this application provide a service survivability analysis method and apparatus, and relate to the field of communications technologies, so as to shorten duration of service survivability analysis and improve efficiency of the service survivability analysis. The method includes: obtaining a link fault record and network topology information that are in a preset time period; determining a similarity between any two links in all faulty links based on fault occurrence time and fault removal time of the any two links in the link fault record and connection information of network devices on the any two links, to obtain a link similarity matrix; performing clustering on all the faulty links based on the link similarity matrix, to obtain at least one link cluster; and performing survivability analysis on services on at least two preset links based on each of the at least one link cluster.

Abstract: A method for determining a signal status of a terminal, comprising: when determining that data transmission quality parameters acquired in n first periods fall within a first range, determining, by a terminal device, that a signal status in a network access mode is on a first level; and then when determining that data transmission quality parameters acquired in m second periods after the n first periods fall within a first hysteresis range, keeping the signal status on the first level.

Abstract: A radio terminal (3) can perform carrier aggregation using a first cell (10) of a first radio station (1) and a second cell (20) of a second radio station (2). The first radio station (1) performs, with the radio terminal (3), radio resource control for the first cell (10) and the second cell (20) in order to perform the carrier aggregation. At least one of the second radio station (2) and the radio terminal (3) is configured to transmit, to the first radio station (10), information about a problem occurring in a radio link in the second cell (20) between the second radio station (20) and the radio terminal (30) while the carrier aggregation of the first cell (10) and the second cell (20) is being performed.

Abstract: Information is communicated indicating whether a cell on a first carrier of a first type is to be used as a reference cell, wherein the reference cell is at least one selected from among a pathloss reference cell and a timing reference cell, and wherein the first carrier of the first type is part of a carrier aggregation that further includes at least a second carrier of a second, different type.

Abstract: Systems and methods for displaying a localization of one or more anomalies in a fiber optic network are provided. In one implementation, a system includes a processing device and a memory device. The memory device is configured to store an anomaly localization module having logic instructions, which, when executed, cause the processing device to display, on a Graphical User Interface (GUI), Network Elements (NEs) and physical fiber plant links of a fiber optic network on a generalized geographical map. Responsive to a user selection, the logic instructions are further configured to cause the processing device to display, on the GUI, a physical fiber plant map based on obtained geographical coordinates of components associated with the fiber optic network.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive, from a base station, information identifying a secondary cell group including a plurality of secondary cells. The user equipment may perform, after detecting a beam failure with a secondary cell of the secondary cell group, a beam failure recovery action associated with the secondary cell group. Numerous other aspects are provided.

Abstract: An embodiment of the present invention is a system (and concomitant methods and computer software embodied in non-transitory computer readable media) providing formations of satellites and a method of modeling and analyzing inter-satellite relative motion of more than one satellites. These extensions include factoring in spacecraft flight dynamics for achieving real-life and/or simulated objectives.

Abstract: Combinations of host ports and storage ports (e.g., I-T pairs) on a storage network that are zoned but not masked may be determined, without accessing a switch or network administrator. Heartbeat communications (heartbeats) may be transmitted from host systems to each storage device of a storage system of which the host system is aware, along the one or more I/O paths of which the host is aware to the storage port of the I/O path. The storage devices may include one or more nominal devices defined for I-T pairs for which I/O connectivity has not been defined for any storage devices. The storage system may maintain a master heartbeat (heartbeat) table that may include a plurality of entries, each entry corresponding to a combination of a host port, storage port and storage device, and storing a time stamp value for a most recent heartbeat received for the combination.

Abstract: An aggregated networking device maintenance system includes a first aggregated networking device and a second aggregated networking device that are coupled together, and each coupled to a third networking device. The first aggregated networking device receives a maintenance instruction and, in response, transmits a first maintenance notification message to the second aggregated networking device, and a second maintenance notification message to the third networking device that prevents the third networking device from transmitting data traffic to the first aggregated networking device.

Abstract: This disclosure describes various methods, systems, and devices related to dynamic service node discovery in a network. In an example method, an intermediary node receives a Link Layer Discovery Protocol (LLDP) message from a first node. The LLDP message includes a discovery Type-Length-Value (TLV) that indicates a location of a service node in the network. The method further includes forwarding the LLDP message to a second node.

Abstract: Embodiments of the present application relate to a method for processing a radio link failure, and a terminal device and a network device. The method includes: sending, by a terminal device, same PDCP layer data to a network device using a primary carrier and a secondary carrier; if the number of transmissions of AMD PDU reaches the maximum number of transmissions in an RLC entity corresponding to the secondary carrier, determining by the terminal device that an RLF event occurs in the secondary carrier; and sending, by the terminal device, first RLF type indication information to the network device, wherein the first RLF type indication information is used to indicate that a carrier where the RLF event occurs is the secondary carrier.

Abstract: The present disclosure involves systems, software, and computer implemented methods for distributed monitoring in clusters with self-healing. One example method includes determining, by a first instance of a monitoring agent of a first node of a cluster, whether an error condition in a first registry included in the first node is present, where the error condition is associated with a second node of the cluster. In response to determining that the error condition associated with the second node is present in the first registry, the first instance of the monitoring agent performs at least one corrective action on the second node. A result of that action is determined, and the first registry in the first node is updated with the result. The first registry is then broadcast to each of the other nodes in the cluster other than the first node as an updated registry.

Abstract: The technology disclosed provides a method of testing handling of HTTPS sessions of a plurality of clients with a plurality of servers by a switching, bridging or routing device (i.e., a DUT), where the testing is conducted by a test system coupled to ports on the DUT. The method includes using client state machines running on at least four processor cores, communicating through the DUT with server state machines running on at least four additional processor cores. The method also includes, for each connection between a client represented by a client state machine and a server represented by a server state machine, setting up an HTTPS session by negotiating an encryption protocol and completing an HTTPS handshake. Further, the method includes following the setup of between 100,000 HTTPS sessions and 10,000,000 HTTPS sessions, conducting a stress test including combining payload data and header information without using the negotiated encryption.

Abstract: A maintenance system includes a plurality of apparatuses and a maintenance server. Each apparatus: transmits log data indicating a state of the apparatus to the maintenance server; receives a prediction model from the maintenance server, the prediction model predicting the occurrence of an abnormal state of the plurality of apparatuses; determines whether the abnormal state of the apparatus occurs based on the prediction model to generate a determination result; and transmits the determination result indicating the occurrence of the abnormal state of the apparatus to the maintenance server. The maintenance server: generates the prediction model based on the log data received from each of the plurality of apparatuses; and issues an instruction of a maintenance work for one or more of the plurality of apparatuses that transmit the determination result.

Abstract: A method of a terminal in a wireless communication system is provided. The method includes performing a medium access control (MAC) reset; stopping a running periodic power headroom report (PHR) timer, when the MAC reset is performed; receiving, from a second cell, information for allocating an uplink resource; starting the stopped periodic PHR timer when the uplink resource is first allocated for a new transmission since the MAC reset is performed, without transmitting a PHR; triggering a PHR when the started periodic PHR timer expires; transmitting, to the second cell, the triggered PHR; and starting the expired periodic PHR timer.

Abstract: A wireless communication device (alternatively, device, WDEV, etc.) includes at least one processing circuitry configured to support communications with other WDEV(s) and to generate and process signals for such communications. In some examples, the device includes a communication interface and processing circuitry, among other possible circuitries, components, elements, etc. to support communications with other WDEV(s) and to generate and process signals for such communications. The WDEV supports first communications with another WDEV to determine an agreed-upon orthogonal frequency division multiple access (OFDMA) resource unit (RU) and agreed-upon OFDMA sub-carriers, adjacent or interspersed, to be used by the other WDEV to provide predetermined response(s).

Abstract: Systems are provided for cable length measurement in a communication system. The systems include a transmitter, a receiver, a signal sampler and a cable length calculation unit. The transmitter is configured to transmit a plurality of data symbols at a first data rate via a wired data communication link, and the receiver is configured to receive a reflection signal. The signal sampler is configured to sample the received reflection signal using a phase shift number of shifting sampling phases to generate reflection samples, and combine the reflection samples with different sampling phases to generate a series of reflection samples corresponding to a second data rate higher than the first data rate. The cable length calculation unit is configured to determine a delay parameter from the series of reflection samples, and generate an estimate of a length of the data communication link.

Abstract: An authentication system having a communications bus, a transmitter connected to the bus, and a receiver connected to the bus. A physical layer signal may be applied by the transmitter to a message on the bus for authenticating the transmitter. The physical layer signal may incorporate an identifier (ID) of the transmitter. The receiver may receive the message and decode the physical layer signal on the message. Decoding the physical layer signal on the message may reveal the ID of the transmitter sending the message. The receiver may look up the ID on a list of IDs corresponding to transmitters approved to send the message, to determine whether the ID of the transmitter sending the message matches an ID on the list. Only if the ID of the transmitter matches an ID on the list, then the transmitter may be authenticated and authorized to send the message.

Abstract: In one embodiment, a device obtains performance data regarding failures of a tunnel in a network. The device generates a failure profile for the tunnel by applying machine learning to the performance data regarding the failures of the tunnel. The device determines, based on the failure profile for the tunnel, whether the tunnel exhibits failure flapping behavior. The device adjusts one or more Bidirectional Forwarding Detection (BFD) probing timers used to detect failures of the tunnel, based on the determination as to whether the tunnel exhibits failure flapping behavior.

Abstract: A checking unit as well as to a process are provided for checking a gas-measuring device. With the checking unit and process it is possible to efficiently detect measured gas values with a gas-measuring device.

Abstract: A communication apparatus includes a notification device that notifies information, a first LAN interface that connects to a network, a second LAN interface that connects to a network, transmits a DHCP discovery packet via a LAN cable when the LAN cable is connected to the first LAN interface, and determines whether to provide a notification and to notify information based on a determination to provide a notification based on a DHCP offer packet transmitted in response to the DHCP discovery packet and network information used to communicate via the second LAN interface.

Abstract: A system that suggests and refines priority, severity, historical resolution, resolution time and assignment group to resolve auto-generated incidents is provided. The system leverages an incident characterization list tracking essence key phrases associated with historical incidents generated by an application performance management (APM) system and a machine data (MD) analysis system. The system automatically obtains a first auto-generated incident, from the APM system or the MD analysis system, based on any specified search criteria being met, or detection of a deviation in the value of key metrics from a specified threshold value.

Abstract: Techniques described herein relate to performing wireless diagnostic analyses including execution and evaluations of interactive content resources executed by execution devices on and/or for separate content receiver devices. A multi-phrase diagnostic session may proceed with an execution of an initial set of diagnostic modules on an execution device, during which interactive content is transmitted/received from a connected receiver device. The results of the diagnostic modules may be evaluated in real-time and transmitted to a diagnostic analyzer server to select additional diagnostic modules for execution during the diagnostic session. The diagnostic analyzer server may select the additional diagnostic modules based on based on response data received via the content execution device to the interactive content of the previously executed diagnostic modules, and/or data received from additional data sources related to the content receiver.

Abstract: In a case of a contention-based radio communication technique, it is necessary to identify a terminal apparatus that has performed data transmission among terminal apparatuses sharing frequency resources. There is a problem that it is difficult to identify the terminal apparatus that has performed data transmission in a case with a large number of terminal apparatuses that are non-orthogonally spatial multiplexed. Provided is a transmission device for transmitting a data signal to a reception device, the transmission device including: a transmission processing unit configured to transmit the data signal without performing SR transmission or receiving control information of transmission permission transmitted from the reception device; an identification signal multiplexing unit configured to multiplex an identification signal to an orthogonal resource; and a control information receiving unit configured to receive in advance a transmission parameter relating to transmission of the data signal.

Abstract: A method of determining the latency of path segments in a communication network that uses multi-bit data packets comprises generating a test packet for use in determining the latency of path segments in the network; transmitting the test packet from a first device coupled to the network; storing in the test packet the time when a preselected bit in the test packet is transmitted from the first device; when the test packet is received by a second device coupled to the network, storing in the second device at least one of (a) the time when a preselected bit in the test packet is received by the second device and (b) the difference between (i) the time when the preselected bit in the test packet is transmitted from the first device and (ii) the time when the test packet is received by the second device.

Abstract: An unauthorized activity detection method is provided in an onboard network system having multiple electronic units (ECU) that perform communication via a bus, such that an occurrence of an unauthorized state can be detected by monitoring frames transmitted over the bus. The unauthorized activity detection method determines, by a monitoring electronic control unit using unauthorized activity detection rule information indicating a first condition, whether or not a set of frames received from the bus satisfies the first condition. The first condition being a condition regarding a relation in content between a first frame having a first identifier and a second frame having a second identifier that differs from the first identifier. And the method further detects the occurrence of the unauthorized state in a case where the first condition is not satisfied.

Abstract: A method and system for diagnosing a fault in a system. Operational state and configuration information is obtained from a plurality of components residing in a plurality of domains, the status and configuration information being based on a plurality of layers of a communication model. The operational state and configuration information are correlated and reformatted to create an end-to-end view of a network-based application; and a user interface configured to visualize the correlated and reformatted operational state and configuration information across the plurality of domains is generated, the user interface configured to present the visualized status and configuration information at each of the plurality of layers.

Abstract: A radio communication device includes a reception unit that receives a part of data transmitted from a first communication device, via a first path including a radio channel between the radio communication device and the first communication device and that receives another part of data transmitted from the first communication device, via a second path that goes through a second communication device; a control unit that performs communication control in accordance with a state of data communication performed via the second path; and a transmission unit that transmits, to the first communication device via the first path by using control performed by the control unit in accordance with the state of the data communication performed via the second path, reception state information that specifies data that has been received or data that has not been received by the reception unit.

Abstract: Provided herein are method and apparatus for perform radio link monitoring (RLM) based on a Reference signal (RS). An embodiment provides a user Equipment (UE) comprising circuitry configured to: decode a Reference Signal (RS) received from an access node; and determine beam quality for one or more beam pair links (BPLs) of the RS between the UE and the access node based on the decoded RS, wherein each of the BPLs comprises a transmit (Tx) beam of the access node and a receive (Rx) beam of the UE. Also provided is a procedure of RLM. At least some embodiments allow for beam recovery request for UE beam refinement, and allow for determining whether radio link failure (RLF) occurs.

Abstract: Provided are a method and a device for receiving information indicating the type of a signaling radio bearer (SRB) in a wireless communication system. A user equipment (UE): receives a first radio resource control (RRC) message including information indicating the type of SRB on which a second RRC message, which is a message corresponding to the first RRC message, is to be transmitted; and transmits the second RRC message via the type of SRB indicated by the information indicating the type of SRB. Accordingly, the type of bearer on which a first message is received and the type of bearer on which a second message is transmitted in a single RRC procedure may be identical or mutually different.

Abstract: A system that incorporates aspects of the subject disclosure may perform operations including, for example, obtaining uplink information associated with a downlink path, wherein the uplink information includes operational parameters used by a plurality of communication devices for transmitting wireless signals on a plurality of uplink paths; performing, based on the uplink information, a plurality of measurements of the plurality of uplink paths; identifying a measurement from the plurality of measurements that is below a threshold, thereby indicating an affected uplink path of the plurality of uplink paths; initiating a first filtering of the affected uplink path, wherein the initiating is based on the identifying and wherein the first filtering is based upon one or more first filtering parameters; and receiving instructions comprising one or more updated filtering parameters, wherein the instructions are received by the system at a port of the system. Other embodiments are disclosed.

Abstract: A networked control system for controlling at least one plant includes a receiver configured to receive a feedback signal indicative of a current state of a controlled variable of a plant over a wireless link and a controller configured to determine a control command based on a control error between a reference state of the controlled variable and the current state of the control variable. The system also includes a processor configured to determine, based on a function of the control error, a number of transmission times a packet with the control command needs to be transmitted over the wireless link, and a transmitter configured to transmit the packet over the wireless link the number of transmission times.

Abstract: A technique for resolving a link failure occurring on a link between a first virtualized network function, VNF, and a second VNF provided in a cloud computing environment is disclosed. A method implementation of the technique is performed by the first VNF and comprises receiving a link failure notification comprising link recovery status information indicating a current recovery status of the link, and triggering an action depending on the link recovery status information to resolve the link failure.

Abstract: A hardware architecture for a universal testing system used for performing tests on cable modem devices (DUT) is disclosed. According to certain embodiments, a CMTS test harness enables the DUT to respond to test phone calls from the MOCA interface and which test phone calls terminate at the DUT's phone port.

Abstract: A method performed by a User Equipment (UE) for handing a Radio Link Failure (RLF) on a first group of cells in a wireless communication network is provided. The UE is engaged in an ongoing communication with the wireless communication network via a first group of cells and a second group of cells. The UE detects (501) that an RLF is on one or more out of the first group of cells. The further UE sends (502) a report to a network node in the wireless communication network. The report is sent via one or more out of the second group of cells while continuing the communication with the wireless communication network. The report comprises radio link information about the RLF on one or more out of the first group of cells.

Abstract: A technique for transmitting data (504) from a first station to a second station on a contention-based radio channel is described. As to a method aspect of the technique, the first station obtains a transmit identifier (506) for the first station from a set of transmit identifiers; transmits control information (502) including the transmit identifier (506) to the second station; and transmits the data (504) to the second station according to the control information (502), wherein the data includes a station identifier (508) for the first station, the station identifier (508) or a combination of the station identifier and the transmit identifier (506) being indicative of the first station.

Abstract: A communication system is disclosed, in which a mobile telephone communicates user data substantially simultaneously via a first base station and a second base station of the communication system. The mobile telephone detects a problem in communications with the second base station and transmits, to the first base station on detection of a problem in communications with said second base station, an indication of the detected problem in communications with the second base station.

Abstract: A wireless communication method and device are provided. The method comprises: a terminal device determining a reference uplink signal of a target uplink signal; the terminal device determining the transmission power of the target uplink signal according to the transmission power of the reference uplink signal; and the terminal device transmitting the target uplink signal by using the determined transmission power.

Abstract: Devices and methods described herein decode a sequence of coded symbols by guessing noise. In various embodiments, noise sequences are ordered, either during system initialization or on a periodic basis. Then, determining a codeword includes iteratively guessing a new noise sequence, removing its effect from received data symbols (e.g. by subtracting or using some other method of operational inversion), and checking whether the resulting data are a codeword using a codebook membership function. In various embodiments, soft information is used to generate a symbol mask that identifies the collection of symbols that are suspected to differ from the channel input, and only these are subject to guessing. This decoder embodies or approximates maximum likelihood (optionally with soft information) decoding for any code. In some embodiments, the decoder tests abounded number of noise sequences, abandoning the search and declaring an erasure after these sequences are exhausted.

Abstract: The present invention relates to communications methods and apparatus dynamically detecting and/or mitigating anomalies in communications systems/networks.

Abstract: Novel tools and techniques might provide for implementing applications management, based at least in part on operations, administration, and management (“OAM”) information. A host computing system might comprise a dedicated OAM management agent. While normal application frame flow might be sent or received by VMs running on the host computing system, OAM frame flow might be sent or received by the OAM management agent, which might also serve as an OAM frame generator. Alternatively, or additionally, based on a determination that at least one OAM frame has changed (in response to a change in address of far-end and/or near-end OAM server functions), the OAM management agent might update a list associating the at least one OAM frame that has changed with corresponding at least one VM of the one or more VMs, without restarting any of the at least one VM, the OAM management agent, and/or the host computing system.

Abstract: A method, a device, and a non-transitory storage medium provide a validation and anomaly detection service. The service includes quantitatively assessing latent space data representative of network performance data, which may be generated by a generative model, based on quantitative values pertaining to quantitative criteria. The quantitative criteria may include Hausdorff distances, divergence, joint entropy, and/or total correlation. The service further includes generating geogrid data for services areas of deployed network devices and service areas for prospective and new deployments based on selected latent space data and corresponding network performance data.

Abstract: Techniques are provided for providing Doppler correction. In particular, embodiments may provide re-banding circuitry having a reference clock, a mixer, and a compensation circuitry for re-banding and for Doppler correction. The compensation circuitry may be configured to adjust a reference frequency of the reference clock based on signals received from a Global Navigation Satellite System (GNSS) receiver. The mixer may be configured to translate communication signals in a first frequency band to a second frequency band based at least in part on the adjusted reference frequency of the reference clock.

Abstract: Provided is an abnormality detecting method implemented by a computer, the abnormality detecting method including: acquiring a plurality of pieces of performance information each containing performance of a management target device; determining whether abnormal performance information is included among the plurality of pieces of performance information, in accordance with a condition for determining an abnormality of the performance; when the abnormal performance information is included, identifying a type of a failure corresponding to the abnormal performance information, in accordance with a correspondence relationship that associates respective combinations of a plurality of identifiers indicating the abnormality of the performance with failure types; and deciding a degree of importance of a measure against the failure, in accordance with information related to the identified failure type.