Class / Patent application number | Description | Number of patent applications / Date published |
370245000 | Of a local area network | 65 |
20080198754 | Method and system for testing a communication network - A multicast test of an Internet Protocol (IP) network is performed with an initial multicast probing frequency. The multicast probing frequency of the multicast test is increased, and an impairment of the IP network based on the multicast test is detected based on the multicast test. Based on detecting the impairment, a unicast test is performed at one or more segments of the IP network. Based on the unicast test, an impaired segment of the IP network is identified. | 08-21-2008 |
20080205285 | REMOTE NETWORK ELEMENT TESTING IN A BROADBAND COMMUNICATIONS NETWORK - An apparatus is provided for remotely monitoring and testing network elements using a broadband communications network which may be a digital subscriber line network. One or more network elements may be in communication with a remote terminal device via a network gateway over the broadband communications network. The remote terminal device may be configured for communicating commands for monitoring and testing the network elements and for retrieving graphics responsive to the testing commands, generated by the network elements, via the network gateway over the network interface. The retrieved graphics may then be displayed to a user of the remote terminal device to provide an indication of a status of the tested network elements. The apparatus may further include a communications adapter in communication with the network gateway for enabling voice communications over the broadband communications network with network element sites where the network elements are located. | 08-28-2008 |
20080239970 | Ring topology discovery - A method is provided for determining the integrity of a domain defined in a network. The method includes processes and systems to facilitate the discovery a conceptual ring topology of the domain in the network, and the determination of the integrity of the domain based on the conceptual ring topology that was discovered. | 10-02-2008 |
20080247324 | DETECTION OF SPECIFIC BFD PATH FAILURES - Improved detection of specific BFD LSP path failures is herein disclosed. The improved detection described herein allow for faster fault isolation of a failure along a LSP path, which in turn may allow for faster repair of the failure. When opening a BFD session with a LSP egress node, the LSP ingress node provides the LSP egress node a path descriptor along with the BFD Discriminator. If a BFD failure is detected at the LSP egress node, the LSP egress node can signal an alarm that includes a full description of the path. | 10-09-2008 |
20080253295 | Network system and node apparatus - A failure detection protocol is applied so that failure detection requests for the same aggregated link can be processed even when the failure detection requests differ among routing protocols. The failure detection protocol is executed for each of the physical links that form an aggregated link, and a notification is sent to a higher-level application (for example, a routing protocol), which is a requesting source of a communication line failure monitoring request, with a discrimination between a case in which the communication of the aggregated link in its entirety fails and a case in which some physical links of the aggregated link fail. | 10-16-2008 |
20080316931 | SYSTEM AND METHOD OF MONITORINIG NETWORK PERFORMANCE - A method of monitoring network performance is disclosed and includes receiving a session initiation protocol (SIP) response message from one of a plurality of serving-call session control function (S-CSCF) systems at a centralized error monitoring server of an Internet Protocol (IP) Multimedia Subsystem (IMS). The SIP response message includes at least one error code that matches an error monitoring initial filter criterion included in a subscriber profile. The method also includes sending an alert message to a fault management system of the IMS when at least one threshold related to SIP error codes is met or exceeded based on the at least one error code. | 12-25-2008 |
20090010172 | MESSAGE SUBSTITUTION RESPONSE SYSTEM - In a network including equipment noncompliant to the topology management protocol, a message substitution response system executing substitution response to a message discovered or topology search message in lieu of the noncompliant equipment is provided. The substitution response module generation unit | 01-08-2009 |
20090034424 | Managing Architecture And Diagnostic Method For Remote Configuration Of Heterogeneous Local Networks - Disclosed is a managing architecture and diagnostic method for remote configuration of heterogeneous local networks, which includes at least one sub-network agent, a local area network (LAN) management module and a remote LAN module. Each sub-network agent manages its sub-networks via its own management protocol, and collects the sub-networks' information. The LAN management module receives the requests from heterogeneous local networks via these sub-network agents, and converts the information associated with each request into a common information module (CIM) to seek a solution for each request. The remote LAN module receives the unsolved requests from the LAN management module via a channel, configures the heterogeneous local networks and uses compatible interface at a remote side to accomplish the management and diagnosis for the heterogeneous local networks. | 02-05-2009 |
20090052336 | Ethernet Switch With Configurable Alarms - According to one embodiment, an Ethernet switch includes a plurality of ports operable to receive and transmit Ethernet traffic. The Ethernet switch also includes system monitoring software operable to receive an indication from a user of a plurality of fault conditions for which generation of an alarm is desired. The system monitoring software is also operable to monitor the Ethernet switch for the plurality of fault conditions and generate a signal indicating a particular one of the plurality of fault conditions has occurred. The Ethernet switch further includes at least one relay responsive to the generated signal that is operable to turn on a respective alarm indicating a particular fault condition has occurred. | 02-26-2009 |
20090116395 | COMMUNICATION APPARATUS AND METHOD - A communication apparatus includes a setting information storage section for storing band information set on each port, a continuity test signal transmitting section for receiving a continuity test request for testing a connection state of a connected network, and transmitting a continuity test signal to a destination port on the transmission path, a setting information obtaining section for obtaining the band information set on a port receiving the continuity test signal from the setting information storage section, a continuity response signal transmitting section for responding a continuity response signal added the band information obtained from the setting information obtaining section to the continuity test signal, to the port having transmitted the continuity test signal, and a setting information notification section for notifying the band information added to the continuity response signal to a node for managing the network. | 05-07-2009 |
20090147690 | APPARATUS, METHOD AND COMPUTER PROGRAM PRODUCT FOR PROVIDING AUTOMATED BACKUP TO TDM NETWORK CONNECTIONS OVER AN IP NETWORK - An automated telecommunications backup system includes a first system operable to monitor a primary time division multiplexing (TDM) link on a TDM network for a failure condition and a second system operable to back up at least a portion of the telecommunications traffic of the TDM link over a backup network. The backup network may be a packet based network, an Internet protocol (IP) based network, a satellite based network, or an IP based system over a satellite network. The first system may continuously monitor the primary TDM link and switch the functionality thereof into circuit with the TDM link upon the detection of the failure condition. The second system may compress the telecommunications traffic of the TDM link to transmit a pre-designated number of time slots thereof. | 06-11-2009 |
20090154364 | Carrier ethernet with fault notification - A method of fault notification in a carrier Ethernet having the capability of generating and transmitting OAM packets having flag fields, comprises inserting a bit in one of the flag fields to indicate the presence of service-affecting information in the OAM packets, detecting the presence of the inserted bit at the end of a data path, and performing a service protection action in response to the detection of the inserted bit prior to parsing the information in the message. One type of service protection action is protection switching. | 06-18-2009 |
20090161562 | SYSTEMS AND METHODS FOR SCALABLE AND RAPID ETHERNET FAULT DETECTION - The present invention provides scalable and rapid Ethernet fault detection which eliminates the requirement to contiguously send heartbeat frames at regular intervals to detect connectivity faults for each Ethernet Path. The present invention generates Continuity Check Message (CCM) frames only when a fault occurs, continues generating CCM frames while the fault remains, and discontinues when the fault clears. The present invention can be utilized with Ethernet Protection Switching to rapidly detect faults. Additionally, the present invention can be used in any Ethernet topology including point-to-point, rings, and the like. | 06-25-2009 |
20090185496 | Network performance and reliability evaluation taking into account attributes other than only the capacities of edges - Network performability characteristics with improved accuracy are derived by taking into account, in the various analyzed network failure states, attributes of elements at the logical level other than just the capacities of edges, as well as by taking into account one or more “abstract components,” such as scheduled maintenance, and by using multiple traffic matrices. | 07-23-2009 |
20090201821 | SYSTEM AND METHOD FOR DETECTING EARLY LINK FAILURE IN AN ETHERNET NETWORK - A system and method for providing an early indication of link failure in an Ethernet network. In some embodiments an Ethernet PHY determines a link failure if the PHY loses descrambler synchronization, if remote receiver status is determined to indicate a remote receiver failure, or if link status indicates a link failure. | 08-13-2009 |
20090219822 | Troubleshooting Voice Over WLAN Deployments - A voice over WLAN diagnostic system. In particular implementations, a method includes simulating, in response to a triggering event, Voice over Internet Protocol (VoIP) communications with a remote diagnostics engine; gathering metric data characterizing one or more aspects of the simulated VoIP communications; and periodically transmitting diagnostic packets including the metric data to the remote diagnostics engine; wherein the simulating VoIP communications comprises transmitting diagnostic protocol packets that simulate VoIP communications to the remote diagnostic engine; and intercepting diagnostic protocol packets received from the diagnostics engine. | 09-03-2009 |
20090232008 | SYSTEM FOR CONNECTING EQUIPMENT WITH A SERVICE PROVIDER, APPARATUS FOR FACILITATING DIAGNOSTIC AND/OR MANAGEMENT COMMUNICATION WITH SUCH EQUIPMENT, AND PROCEDURE FOR COMMUNICATING WITH SUCH EQUIPMENT - A system, apparatus, and procedure connects customer premises equipment with a service provider network and includes a first local area network, a second local area network, and a management interface device. The first local area network connects the customer premises equipment to the service provider network and is configured to transmit primary service signals to and receive primary service signals from the customer premises equipment. The second local area network connects the customer premises equipment to the service provider network via the management interface device and is configured to transmit diagnostic and/or management signals from the service provider network to the customer premises equipment through the management interface device and/or to receive diagnostic and/or management signals from the customer premises equipment and transmit those signals to the service provider network through the management interface device. These various functions can also be instructed to be performed by a software computer program or computer program product. | 09-17-2009 |
20090316587 | ADAPTIVE TEST SYSTEM FOR NETWORK FUNCTION AND PERFORMANCE EVALUATION - A method may include receiving a first set of parameters associated with a test environment, the test environment including a test system for testing a network, receiving a test objective, conducting a first test case based on the received first set of parameters and the test objective, automatically determining, by the test system, whether the test objective has been satisfied based on a first test result associated with the first test case, and automatically adapting, by the test system, a second test case based on the first test result when it is determined that the test objective has not been satisfied. | 12-24-2009 |
20100014435 | SYSTEM AND METHOD FOR TRACKING ALARMS IN A PACKET NETWORK - A system and method for locating failures in a metro Ethernet network. Packets are communicated from a maintenance end point through a plurality of maintenance entities. An alarm is generated at a maintenance entity in response to determining the packets are not communicated through a next ME. The alarm indicates the location of the next ME. The alarm is sent back through the one or more of the plurality of maintenance entities to a sending MEP in response to detecting the alarm. | 01-21-2010 |
20100054136 | APPARATUS AND METHOD FOR MANAGING A NETWORK - A system that incorporates teachings of the present disclosure may include, for example, a server having a controller to receive information from a set top box that is associated with an undesired condition being experienced by a user of the set top box where the information is inputted into the set top box by the user, determine a failure condition associated with the information, perform a first diagnostic process to isolate the failure condition between a network failure and a customer premises equipment (CPE) failure, and transmit correction instructions to the set top box for presentation to the user when the failure condition is isolated to the CPE failure. Other embodiments are disclosed. | 03-04-2010 |
20100097940 | APPARATUS AND METHOD FOR SERVICING A NETWORK - A system that incorporates teachings of the present disclosure may include, for example, a server having a controller to receive first operational data from a portable testing device that is temporarily connected to a network interface device of a network where the network interface device is customer premises equipment and where the first operational data is associated with an undesired condition being experienced by the customer premises equipment, determine a service action to be performed by a technician associated with the portable testing device based at least in part on the first operational data, and transmit service information that is representative of the service action to the testing device for servicing the customer premises equipment where the service information is adapted for presentation by the testing device. Other embodiments are disclosed. | 04-22-2010 |
20100097941 | Redundant Intermediary Switch Solution for Detecting and Managing Fibre Channel over Ethernet FCoE Switch Failures - A method for detecting a switch failure and managing switch failover in a Fibre Channel over Ethernet network. The plurality of Fibre Channel over Ethernet switches are connected to an intermediary Ethernet switch and to each other via an Ethernet connection. The intermediary Ethernet switch is different from the plurality of Fibre Channel over Ethernet switches. A plurality of end polls are also connected to the intermediary Ethernet switch. A failure is detected in a first switch in the plurality of Fibre Channel over Ethernet switches. The first switch is associated with a first end port in the plurality of end ports. A failure notification is sent to the first end port using the intermediary Ethernet switch. The failure notification might specify a second switch destination and an identification of the first switch. A fabric login is exchanged between the first end port and the second switch. | 04-22-2010 |
20100103824 | SYSTEM AND METHOD FOR MONITORING A PLURALITY OF NETWORK DEVICES - A system for monitoring a plurality of network devices within a network comprises a network monitor embedded within one of the network devices for automatically discovering and requesting status information from other network devices. The network monitor, in the event that another network monitor is discovered, initiates cooperation with the other network monitor to share discovering and requesting. | 04-29-2010 |
20100103825 | MOBILE STATION LOCALIZATION APPARATUS, SYSTEMS, AND METHODS - Embodiments herein may use first and second path loss values L | 04-29-2010 |
20100124173 | RADIO LINK FAILURE REPORTING - A communication node determines that radio link failure occurred during connected state mobility of an access terminal and reports the radio link failure to another communication node. For example, a target access point may determine that radio link failure occurred during handover of an access terminal and send a radio link failure report message to the access point that was previously serving the access terminal or to some other node (e.g., a network node). In the first case, the serving access point may adjust mobility parameters based on this radio link failure information and, optionally, other reported radio link failure information. In the second case, the other node may send a radio link failure report message to the serving access point, or the other node may adjust mobility parameters based on this radio link failure information (and, optionally, other reported radio link failure information) and send the adjusted mobility parameters to the serving access point. | 05-20-2010 |
20100188983 | SCALED ETHERNET OAM FOR MESH AND HUB-AND-SPOKE NETWORKS - Various exemplary embodiments relate to a method and related network node including one or more of the following: configuring a maintenance domain on a first network node; configuring a maintenance association within the maintenance domain on a first network node; configuring, within the maintenance association, a local maintenance endpoint (MEP) on the first network node; and establishing a plurality of point-to-point connections within the maintenance association, each point-to-point connection established between the local MEP and a respective remote MEP on a respective network node of the plurality of network nodes using an identifier of the respective remote MEP and a Media Access Control (MAC) address of the respective remote MEP, wherein each point-to-point connection enables transmission of unicast CFM messages from the local MEP to the respective remote MEP, and the plurality of point-to-point connections are established within a single maintenance association. | 07-29-2010 |
20100290348 | GENERATION AND USAGE OF MOBILITY VLAN ID VERSION VALUE - A mobility network architecture includes a control plane and data plane. The control plane supports notification of VLAN configurations. The data plane supports routing of data amongst VLANs. Each VLAN has an associated identifier value as well as a version number. The version number for a respective VLAN can be updated to a new value each time there is a change to the VLAN. Typically, a controller communicates over the control plane to notify each member switch when a version number has changed for a VLAN. If controller notification fails, a member switch can receive a notification from a neighboring switch that the version number for a VLAN has been modified. In response to detecting such a condition, the switch receiving the notification can prevent forwarding of data even though the switch does not receive notification from the controller that the version number for the VLAN has changed. | 11-18-2010 |
20100315956 | RADIO COMMUNICATION RELAY DEVICE, RADIO COMMUNICATION BASE STATION DEVICE, RADIO COMMUNICATION SYSTEM, AND RADIO COMMUNICATION METHOD - It is possible to provide a radio communication relay device, a radio communication base station device, a radio communication system, and a radio communication method which can effectively use resources and suppress a data delay and system complexity. When a terminal starts an upstream communication with a base station via a repeater in ST | 12-16-2010 |
20110013524 | TRAINED DATA TRANSMISSION FOR COMMUNICATION SYSTEMS - Various embodiments are described for a trained data transmission for communication systems. | 01-20-2011 |
20110019554 | NETWORK DESIGN DEVICE AND NETWORK DESIGN METHOD - A network design device includes a bypass number setting unit setting the number of bypass node; a loss calculating unit calculating a reference loss; a graph generating unit generating a graph having a variation value obtained based on a difference between a transmission loss of a link coupling nodes to each other and the reference loss; a path detecting unit detecting a minimum-variation-path in which sum of each variation value from a start point to an end point of the graph is minimum; and a comparing unit comparing a calculation OSNR and a reference OSNR, the calculation OSNR being obtained by a calculation from a start point to an end point assuming that an optical amplifier is located on a node other than a bypass node on the minimum-variation-path, wherein the bypass number setting unit changes the number of bypass node based on a result of the comparing unit. | 01-27-2011 |
20110058488 | REAL-TIME DETECTION OF FAILED INTER-NODE LINK IN NETWORK - A method is disclosed of detecting a failed link in a network over which nodes are interconnected via links. The nodes include an observer node and a managed node. This method, implemented for the observer node, includes: determining, for each of prefixes in receive route-update messages, a single normal-state path; determining, for each of the links (i.e., monitored links) on the normal-state path for the managed node, at least one prefix advertised from one of the nodes which is located adjacent to the each link on an upstream side, as at least one monitored prefix; determining whether the path contained in each route-update message, and the normal-state path for the monitored prefix contained in the each route-update message are unmatched with each other; counting, for each monitored link, an unmatched-prefix count which refers to a count of at least one unmatched prefix of the at least one monitored prefix for each monitored link; and extracting at least one link from the monitored links, as at least one failed link, based on the unmatched-prefix count. | 03-10-2011 |
20110075571 | DISTRIBUTED VIRTUAL HOME AGENT FOR MOBILE INTERNET PROTOCOL - The present invention provides a method and apparatus for a distributed virtual home agent. One embodiment of the method includes implementing a first primary home agent on a first portion of a plurality of hardware elements that operate according to a mobile Internet Protocol (IP) and a second primary home agent on a second portion of the plurality of hardware elements. A first backup home agent is implemented on the second portion of the plurality of hardware elements and a second backup home agent is implemented on the first portion of the plurality of hardware elements. Packets addressed to the first or second primary home agent can be directed to both the first and second portions of the plurality of hardware elements so that states of the first and second backup home agents mirror states of the first and second primary home agents, respectively. | 03-31-2011 |
20110103235 | WIRELESS LOCAL AREA NETWORK TEST SYSTEM WITH FORCED TRANSMIT RATES DURING PROTOCOL-BASED TESTING - A system for performing wireless local area network testing of wireless devices may include a wireless local area network tester and a device under test. The tester and device under test may communicate over a wireless link. To ensure that the tester accurately analyzes test data, a data rate table is used that specifies fixed data transmission rates to be used by the device under test under both high-quality link conditions and low-quality link conditions. This forces the device under test to transmit control packets at the same high data rate during packet loopback testing, regardless of link quality. When the captured control packets are analyzed at the tester, both low-link-quality data and high-link-quality data may be analyzed using a common test template, ensuring accurate results. | 05-05-2011 |
20110128862 | OPTIMIZING A QUALITY OF SERVICE (QOS) VIA LOAD BALANCING - A device detects an overload in a serving cell of a wireless network based on information associated with the serving cell, and determines, when the overload in the serving cell is detected, user equipment in the serving cell that are candidates to move to a target cell of the wireless network based on calculated user throughputs of user equipment in the serving cell. The device also selects one or more of the candidate user equipment to move to the target cell, and moves the selected user equipment to the target cell. | 06-02-2011 |
20110164508 | NETWORK RELAY APPARATUS, NETWORK SYSTEM, AND CONTROL METHOD OF NETWORK RELAY APPARATUS - Network relay apparatus connected directly or indirectly to a first processing apparatus, a second processing apparatus, and a client apparatus, the network relay apparatus being configured to relay packet communication between the respective apparatuses, wherein one identical address is set in both the first processing apparatus and the second processing apparatus, and the client apparatus uses the first processing apparatus and the second processing apparatus. The network relay apparatus includes: a first route information storage configured to store route information of a first virtual network to which the first processing apparatus belongs; a second route information storage configured to store route information of a second virtual network to which the second processing apparatus belongs; a route information advertiser configured to receive advertisement for route information on the first virtual network and store the received route information into the first route information storage, a state detector; and a packet forwarding processor. | 07-07-2011 |
20110211459 | SYSTEM AND METHOD FOR ANALYZING AND TESTING PACKET FLOWS TO LOCALIZE PROBLEMS - Disclosed herein are systems, methods, and computer-readable storage media for analyzing packet flows and generating an alarm and for active testing of a network to localize problems. The system analyzes packet flows for bitstreams associated with a network node in order to compute a measure of protection that a queue of the network node gives to a high-priority one of the bitstreams relative to a low-priority one of the bitstreams, and uses the measure of protection to determine whether the network node is a source of a protection error with respect to priority markings for packets flowing through the network node, and generates an alarm upon determining that the network node is a source of a protection error with respect to the priority markings for the packets flowing through the network node. | 09-01-2011 |
20110211460 | Systems and Methods for Determining Packet Error Rate (PER) for Wireless Encapsulated Network Packet Data Communications Links - A method for generating a packet sequence for determining a Packet Error Rate (PER) using network packets, the method comprising generating, using a Local Area Network (LAN) enabled computer, a series of network PER test packets and frames, each packet comprising a predetermined unique identifier and each frame comprising a predetermined sequence for the packets in the series of network packets, wherein the series of network packets and frames are each of a size that is compliant with a predetermined framing mode and encapsulation protocol for the transmission system for determining a PER from the series of network packets and frames, and transmitting, using a transmitting device, the network packets and frames to a receiving device. | 09-01-2011 |
20110211461 | Method for Data Transmission in a Local Area Network - A method for data transmission in a local are network, wherein data is transmitted on the Media Access Control (MAC) layer within successive time frames between a plurality of first nodes comprising client nodes to a second node comprising a coordinator node for the plurality of first nodes. A synchronizing slot for sending a synchronizing message from the second node to the first nodes includes acknowledgements for time slots used for data transmissions in previous time frames from the first nodes to the second node. The acknowledgements indicate whether a data transmission in the previous time frame was successful. Based on these acknowledgements, retransmission time slots included in the current time frame are used for retransmitting data that have not been transmitted successfully in a time slot of the previous time frame. | 09-01-2011 |
20110255422 | ANALYZING SERVICE IMPACTS ON VIRTUAL PRIVATE NETWORKS - Methods, computer-readable media and computing systems are provided for analyzing service impacts on one or more VPNs on a computer network. A topology of each VPN may be identified. A protocol failure may be detected between routers of the computer network. It may then be determined how the VPN is affected by the protocol failure based on the identified topology and VRF information obtained from routers of the computer network. | 10-20-2011 |
20120039185 | System and Method for Providing Security in a Wireless Communications System - A system and method for providing security in a wireless communications system are provided. A method for securing information includes producing secured information by applying a sequence to radio resource allocation information; and transmitting the secured information to a communications device. The radio resource allocation information includes a location of a radio resource allocated to a communications device. | 02-16-2012 |
20120057473 | FAULT DIAGNOSTICS FOR IMPROVED QUALITY OF SERVICE - Providing a near-carrier class service to a non-carrier class backhaul network, including: monitoring a connection of the non-carrier class backhaul network of at least one picocell by periodically sending at least one message to a monitoring agent located within an interne service provider network; tracing the connection to the monitoring agent through a network operations center when an acknowledgement in response to the at least one message is not received from the monitoring agent; generating an alert message that provides detailed information about a point of failure in the connection when a loss of connection is detected in tracing the connection; and generating a solution to fix the loss of connection so that the near-carrier class service can be provided to the non-carrier class backhaul network of the at least one picocell. | 03-08-2012 |
20120106360 | DUAL-HOMING FOR ETHERNET LINE SERVICES - Techniques are described which provide mechanisms for dual-homing an access ring for virtual private wire service (VPWS) Ethernet line (E-Line) services. The mechanism may provide resiliency against access ring failures and offer a restoration time of 50 msec upon failure. A method to provide such resiliency may generally include determining, at a first ring port of an access node, a ring failure in an Ethernet ring. Upon determining the first ring port of the access node is not situated on a same side of the Ethernet ring as a node designated as a ring protection link (RPL) owner, a message is transmitted on a second ring port of the access node towards a provider edge (PE) node. The message is used to activate pseudowires (PWs) at the PE node for virtual local area networks (VLANs) of the access node. | 05-03-2012 |
20120140641 | METHODS, APPARATUS AND ARTICLES OF MANUFACTURE TO TEST HOME NETWORKS - Example methods, apparatus and articles of manufacture to test home networks are disclosed. A disclosed example method includes receiving a command from a wirelessly coupled test controller, communicative coupling a communication module to a home network in response to the command, performing a test of the home network via the communication module, and returning a result of the test to the test controller via a wireless signal. | 06-07-2012 |
20120155288 | BROADCAST RECEIVING APPARATUS AND METHOD OF DETERMINING BROADCAST RECEPTION STATE THEREOF - A method of determining a broadcast reception state of a broadcast receiving apparatus includes receiving a broadcast signal using a tuner; checking a reception state of the broadcast signal; changing a wireless communication connection state of the wireless communication module if the reception state of the broadcast signal is abnormal and rechecking the reception state; and determining the reception state as an abnormal reception state due to interference with a wireless communication frequency if a result of rechecking the reception state indicates the reception state is normal. | 06-21-2012 |
20120201145 | SYSTEMS, METHODS, AND APPARATUS FOR IDENTIFYING INVALID NODES WITHIN A MESH NETWORK - Systems, methods, and apparatus for identifying, invalid nodes within a mesh network are provided. A routing table may he maintained by a utility meter. The routing table may include information associated with one or more devices in communication with the utility meter via a mesh network. A change in the routing table may be identified by the utility meter, and an alert message associated with the identified change may be generated by the utility meter. The generated alert may then be output by the utility meter for communication to a central controller configured to process the alert message to identify an invalid node within the mesh network. | 08-09-2012 |
20120207030 | METHODS FOR TESTING WIRELESS LOCAL AREA NETWORK TRANSCEIVERS IN WIRELESS ELECTRONIC DEVICES - An electronic device may include wireless circuitry such as cellular telephone transceiver circuitry and wireless local area network (WLAN) transceiver circuitry. The telephone transceiver may be used to establish long-range wireless connectivity, whereas the WLAN transceiver may be used to establish short-range wireless connectivity. The performance of the WLAN transceiver may suffer in the presence of heat-generating operations. The performance of the WLAN transceiver may be tested using test equipment while the electronic device is configured in a test mode and a normal user mode. During testing, the WLAN transceiver may be directed to transmit radio-frequency signals while the telephone transceiver is toggled on and off. The test equipment may be used to analyze the radio-frequency signals to measure the transmit power level, transmitter constellation error, transmit spectrum mask, and other performance parameters to determine whether that device under test satisfies design criteria. | 08-16-2012 |
20130016618 | SELF-TESTING OF SERVICES IN AN ACCESS POINT OF A COMMUNICATION NETWORKAANM Shanmugavadivel; SenthilrajAACI CoimbatoreAACO INAAGP Shanmugavadivel; Senthilraj Coimbatore INAANM Kaushik; AnilAACI BangaloreAACO INAAGP Kaushik; Anil Bangalore INAANM Kiran; RajAACI BangaloreAACO INAAGP Kiran; Raj Bangalore IN - A technique for self-testing of services in an access point of a communication network includes providing a table that has a mapping between a service test, packets to be sent for testing, and packets that should be received in response to the testing, emulating and marking the test packets to be sent, placing the marked test packets in an Rx queue, processing the test packets normally by the access point to provide response packets and marking these response packets, delivering the marked response packets to a Rx queue, retrieving the marked response packets from the Rx queue, and comparing the service test response packets to the list of packets that should have been received in the response to the testing in order to validate that service on the access point. | 01-17-2013 |
20130051248 | HIERARCHICAL ANOMALY LOCALIZATION AND PRIORITIZATION - Methods, apparatus and articles of manufacture for hierarchical anomaly localization and prioritization are disclosed. An example method disclosed herein comprises obtaining reported status for a plurality of nodes of a hierarchical topology, the reported status for a particular node being at least one of normal, abnormal or indeterminate, and determining a subset of root cause abnormal nodes, a root cause abnormal node included in the subset of root cause abnormal nodes having a total number of abnormal direct descendent nodes and indeterminate direct descendent nodes that is greater than a number of normal direct descendent nodes of the root cause abnormal node. | 02-28-2013 |
20130176864 | RATE AND POWER CONTROL SYSTEMS AND METHODS - A method includes transmitting a packet from a first wireless device to a second wireless device, where data within the packet is encoded and a signal representing the packet is modulated in accordance with a modulation and coding scheme (MCS). The method also includes, responsive to receiving an acknowledgement packet that includes a MCS change indicator from the second wireless device via a wireless local area network (WLAN) in response to transmitting the packet, maintaining the MCS when the MCS change indicator has a first value and incrementing the MCS when the MCS has a second value. | 07-11-2013 |
20130322264 | PROVIDING REAL-TIME INTERRUPTS OVER ETHERNET - In one embodiment, a method includes sending a request to one or more distributed fabric protocol (DFP) system members in order to retrieve one or more events from the one or more DFP system members, wherein the one or more events are received as data encapsulated in a packet(s), receiving one or more acknowledgements to the request from the one or more DFP system members at a local network switch of the DFP system master, upon receipt of the at least one packet: decoding the at least one packet to retrieve details of the one or more events using a dedicated processor of the DFP system master, creating and sending a message signaled interrupt (MSI) comprising the details of the one or more events to a local processor of the DFP system master using the dedicated processor, and reading the MSI using the local processor of the DFP system master. | 12-05-2013 |
20140003253 | COMMUNICATIONS APPARATUS, SYSTEM AND METHOD WITH SCHEDULE CHECKING | 01-02-2014 |
20140169182 | SYSTEM AND METHOD FOR PARALLEL TESTING OF MULTIPLE DATA PACKET SIGNAL TRANSCEIVERS - System and method for facilitating testing of multiple data packet signal transceivers involving data-packet-signal replication and one or more status signals indicating successful and unsuccessful receptions of confirmation signals. Based upon the one or more status signals, one or more control signals cause the replicated data packet signals to be distributed to the devices under test (DUTs) such that, following successful and unsuccessful receptions of confirmation signals, corresponding replicated data packet signals are caused to fail to conform in part or to conform, respectively, with a predetermined data packet signal standard. | 06-19-2014 |
20140204769 | FAILURE DETECTION APPARATUS AND METHOD - According to one embodiment, a failure detection apparatus includes a communicator, a selector, an execution unit, and a determiner. The communicator communicates with a wireless terminal mounted on a moving object via at least one of first bridge devices located at predetermined positions. The selector selects second bridge devices from the first bridge devices. The execution unit executes test connections to the wireless terminal using the second bridge devices. The determiner determines that the wireless terminal is inoperative if the test connection via any of the second bridge devices has failed. | 07-24-2014 |
20140254394 | NETWORK ACTIVATION TESTING - In general, techniques are described that may allow a network element to autonomously validate a network or network segment. In one example, a method includes configuring a VLAN on a network having at least two network elements, configuring, via a first one of the at least two three network elements on the network, a network loop on the VLAN, generating, via the first one of the at least two network elements on the network, a plurality of data units and injecting the data units onto the network, forwarding, via each of the at least two network elements on the network, the data units around the network loop on the VLAN for a specified time at media speed, configuring one of the at least two network elements on the ring network to stop the network loop, and determining whether there are any network errors. | 09-11-2014 |
20140348006 | System and Method for Detecting a Virtual Extensible Local Area Network (VXLAN) Segment Data Path Failure - Methods and apparatuses for determining a VXLAN data path failure are provided. In an embodiment, a first data packet comprising an echo request is generated at an originating tunnel end point device in a network. The echo request includes a VXLAN network identifier (VNI) associated with a selected VXLAN segment. A second data packet is generated comprising a header having a format associated with a VXLAN technology, the header comprising a network identifier portion including the VXLAN network identifier (VNI). The first data packet is encapsulated in the second data packet, and the second data packet is transmitted via the selected VXLAN segment. | 11-27-2014 |
20140355454 | Communication Node Operable to Estimate Faults in an Ad Hoc Network and Method of Performing the Same - A communication node operable to estimate faults in a mobile ad hoc network and method of performing the same. In one embodiment, the communication node includes a processor and memory including computer program code configured to, with the processor, cause the communication node to monitor a set of observable parameters at the communication node, produce a fault estimate at the communication node from the set of observable parameters, and provide the fault estimate to a global fault detector at another communication node. | 12-04-2014 |
20140376387 | WIRELESS COMMUNICATION APPARATUS AND CONTROL METHOD THEREOF - The method of controlling a wireless communication apparatus includes receiving data from a transmitter; transmitting information about transmission of the data to a plurality of receivers; transmitting the data to the plurality of receivers; receiving a response signal about error in receiving the data, from at least one of the plurality of receivers; and retransmitting the data to the plurality of the receivers. | 12-25-2014 |
20150063127 | TRANSMISSION APPARATUS AND TRANSMISSION METHOD - There is provided a transmission apparatus which includes a transmission unit configured to transmit a control data to an opposite transmission apparatus at a transmission interval, a first determination unit configured to determine a communication quality of a network connected with the opposite transmission apparatus, and an adjustment unit configured to adjust the transmission interval, at which the control data is transmitted, to be longer than a reference transmission interval when the communication quality is equal to or greater than a predetermined value. | 03-05-2015 |
20150117227 | RANGE EXTENSION MODE FOR WIFI - A method for generating a physical layer (PHY) data unit for transmission via a communication channel is described where the PHY data unit conforms to a first communication protocol. Orthogonal frequency division multiplexing (OFDM) symbols for a data field of the PHY data unit are generated according to a range extension coding scheme that corresponds to a range extension mode of the first communication protocol. A preamble of the PHY data unit is generated, the preamble having i) a first portion that indicates a duration of the PHY data unit and ii) a second portion that indicates whether at least some OFDM symbols of the data field are generated according to the range extension coding scheme. The first portion of the preamble is formatted such that the first portion of the preamble is decodable by a receiver device that conforms to a second communication protocol, but does not conform to the first communication protocol, to determine the duration of the PHY data unit based on the first portion of the preamble. The PHY data unit is generated to include the preamble and the data field. | 04-30-2015 |
20150350043 | METHODS AND ARRANGEMENTS FOR CHECKING CONNECTIVITY AND DETECTING CONNECTIVITY FAILURE - A method is presented for connectivity checking and detection of connectivity failure, based on a modified Ethernet ARP address resolution mechanism to detect broken connectivity on physical, data-link and network layer between a first and a second node. The detection mechanism uses Periodical Gratuitous ARP messages (PGARP). PGARP messages are sent by a first node, the sender host or Issuer. On the other side of a data path is a second node, receiver host or Listener configured to detect lost connectivity by means of missing PGARP messages. The process on the Listener then informs subscribing services, host local, or remote, about the state of the connectivity. | 12-03-2015 |
20150382219 | METHODS, APPARATUS AND ARTICLES OF MANUFACTURE TO TEST HOME NETWORKS - Example methods, apparatus and articles of manufacture to test home networks are disclosed. A disclosed example method includes instructing, from a test controller, a test server to become communicatively coupled to a residential gateway of a home network. The test server is separate from the residential gateway. The test controller is separate from the residential gateway. The test controller instructs the test server to perform a first test of the home network. A second test of a femtocell is performed with a cellular transceiver of the test controller. The second test is different from the first test. The femtocell is communicatively coupled to the residential gateway. The femtocell is separate from the residential gateway. A first result of the first test and a second result of the second test are presented via a display of the test controller. | 12-31-2015 |
20160119210 | USER INTERFACES FOR CONTINUOUS GLUCOSE MONITORING - The subject matter disclosed herein provides methods for presenting glucose level data. Glucose data for a patient may be received. A current glucose level and a rate of change of the current glucose level may be determined based on the received glucose data. A first interface may be displayed on a screen of a device. The first interface may include a unitary icon. The unitary icon may display the current glucose level and a visualization of the rate of change. Related apparatus, systems, techniques, and articles are also described. | 04-28-2016 |
20160173294 | LOCAL INTERCONNECT NETWORK SYSTEM AND METHOD, AND COMPUTER READABLE MEDIUM FOR IMPLEMENTING THE METHOD | 06-16-2016 |
20160173344 | Monitoring and diagnosis of a control device | 06-16-2016 |
20160380727 | METHOD AND APPARATUS FOR RETRANSMISSION IN WIRELESS LAN - Disclosed are a method and an apparatus for retransmission in a wireless LAN. The method for retransmission in a wireless LAN may comprise the steps in which: an STA receives an RTS frame from an AP; the STA transmits a CTS frame to the AP in response to the RTS frame; the STA receives an initial data frame from the AP after transmitting the CTS frame; if decoding on the initial data frame is impossible, the STA transmits a retransmission request frame to the AP; and the STA receives a retransmission data frame from the AP in response to the retransmission request frame. | 12-29-2016 |