Methods and systems for high speed failover in a network are provided. To provide faster Type C GPON redundancy failover, the disclosure herein describes the use of G.8031 1:1 ELPS in a single ended application to ensure path integrity through the network. Single ended 1:1 ELPS means that a network device is configured with 1:1 ELPS and switches paths in the event of disruption of the working communication path without the other underlying transport entities having knowledge of either the ELPS protocol or state machine. ELPS (Ethernet Linear Protection Switching, ITU G.8031) is a standardized method for protection switching between two point-to-point paths through a network, however its application here is quite novel. During a failure on the working path, traffic will switch over to the protection path. Type C PON protection provides a fully redundant path between the OLT and the ONU (2 separate PONs).
H04L 41/0663 - Gestion des fautes, des événements, des alarmes ou des notifications en utilisant la reprise sur incident de réseau en réalisant des actions prédéfinies par la planification du basculement, p. ex. en passant à des éléments de réseau de secours
H04L 43/0817 - Surveillance ou test en fonction de métriques spécifiques, p. ex. la qualité du service [QoS], la consommation d’énergie ou les paramètres environnementaux en vérifiant la disponibilité en vérifiant le fonctionnement
2.
Time-division multiplexed systems and methods for reducing overestimation of bandwidth demand
A time-division multiplexed (TDM) communication system has a dynamic bandwidth allocation (DBA) controller that is configured to reduce demand overestimation so that more optimal bandwidth allocation is achieved. Upon receiving load information from a transceiver, the DBA controller is configured to estimate an amount of change to the transceiver's reported load based on previous allocations of bandwidth to the transceiver for frames that occur during a reporting delay (e.g., the delay from the time that the load information is transmitted until it is received and processed). That is, the estimated load is reduced in an effort to account for transmissions made by the transceiver during the reporting delay, thereby preventing or reducing the amount of demand overestimation that would otherwise occur. Thus, the transceiver may be allocated less bandwidth according to a desired DBA algorithm so that more network bandwidth is available for other transceivers.
A memory system has a memory management unit (MMU) that is configured to receive data for storage into physical memory comprising a plurality of memory devices. The MMU receives a logical memory address and converts the logical memory address into at least one page address associated with data to be written to or read from physical memory. The MMU has an address translation circuit that is configured to translate each page address into a physical memory address. In translating the page address, the MMU employs an integer division operation that does not constrain the size of an arbitration map used to define the physical memory address. Thus, the operation of the memory can be better optimized using circuitry that has relatively low complexity and cost.
G06F 12/00 - Accès à, adressage ou affectation dans des systèmes ou des architectures de mémoires
G06F 12/0802 - Adressage d’un niveau de mémoire dans lequel l’accès aux données ou aux blocs de données désirés nécessite des moyens d’adressage associatif, p. ex. mémoires cache
A light pipe device may have a substantially U-shaped base with first and second leg portions. One or more light pipes may extend from one or both of the leg portions. The light pipe device may be mounted to a printed circuit board (PCB) by clipping the U-shaped based onto an edge of the PCB.
F21K 9/61 - Agencements optiques intégrés dans la source lumineuse, p. ex. pour améliorer l’indice de rendu des couleurs ou l’extraction de lumière en utilisant des guides de lumière
Methods and systems for resilient network communication are provided. In one aspect, a network includes multiple edge network elements, core network elements, and off-network network elements. Each network element has multiple ports. Communication paths exist between edge network elements, traversing core network elements. A maintenance domain maintains communication resiliency in the network through maintenance domain entities that detect network communication faults. Maintenance domain entities are associated with ports of edge network elements. Proxy maintenance domain entities, associated with unused ports of core network elements or edge network elements allow for network extensibility as additional network elements may be provisioned in the network over time.
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for detecting and managing noisy alarms in a communications network. In some aspects an event is detected on a communications network. Two or more fields of event data of the event are extracted. An event signature that uniquely represents characteristics of the event is created using the two or more fields of event data as input. A magnitude of instances of the given event signature that are encountered over a tracking period are tracked. The event is classified as a flapping event based on a determination that the given event signature has been encountered at least a threshold number of times within a specified amount of time. One or more event processing operations are excluded from being performed for one or more events having event signatures matching the given event signature based on the classification of the event as a flapping event.
A system for monitoring voice services has a service monitor that is configured to periodically assess the registration state of a voice service provided to a customer. If the service transitions to an unregistered state, the service monitor logs the state change and continues to monitor the service to determine approximately when the service transitions back to a registered state. Thus, over time, the service monitor tracks loss-of-registration (LOR) events and analyzes the history of such LOR events to determine when they are indicative of a network or service problem that warrants further analysis or attention by a user. Using these techniques, the service monitor may be able to detect and, in some cases, diagnose problems that are degrading voices services for one or more customers even before such customers realize that their services are degraded.
H04M 7/00 - Dispositions d'interconnexion entre centres de commutation
H04L 65/1073 - Enregistrement ou annulation de l’enregistrement
H04L 69/40 - Dispositions, protocoles ou services de réseau indépendants de la charge utile de l'application et non couverts dans un des autres groupes de la présente sous-classe pour se remettre d'une défaillance d'une instance de protocole ou d'une entité, p. ex. protocoles de redondance de service, état de redondance de protocole ou redirection de service de protocole
H04Q 11/00 - Dispositifs de sélection pour systèmes multiplex
8.
Communication resilience in a ring network topology
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for communication resilience in a Ring Network Topology. In some aspects, a top Ethernet node, implemented in a Ring Network Topology (“RNT”) that includes multiple additional Ethernet nodes, receives downstream traffic having a virtual local area network (“VLAN”) service address. The top Ethernet node can determine that the downstream traffic is destined for a given device serviced by a given Ethernet node, from among the multiple additional Ethernet nodes, that terminates a given Ethernet Ring Protection Switching (“ELPS”) group. The top Ethernet node can determine a given VLAN subnetwork that has been mapped to the given ELPS group, and transmit the downstream traffic through the RNT using the given VLAN subnetwork.
G06F 15/173 - Communication entre processeurs utilisant un réseau d'interconnexion, p. ex. matriciel, de réarrangement, pyramidal, en étoile ou ramifié
Methods, systems, and apparatus, including computer programs encoded on computer-storage media, for associating unclaimed communications nodes. In some implementations, a method includes receiving broadcast information transmitted by a transmitting device including (i) identifying information of a transmitting device and (ii) an address not associated with any device in a transmitting vicinity of the transmitting device; transmitting a password request to the transmitting device in response to receiving the broadcast information; obtaining password information that includes hashed data generated by a hash algorithm; generating a hash result by applying the hash algorithm to an identifier of the transmitting device; comparing the hashed data received from the transmitting device to the hash result generated by the controller; and updating a set of registered network devices based on comparing the hashed data with the hash result.
H04L 9/32 - Dispositions pour les communications secrètes ou protégéesProtocoles réseaux de sécurité comprenant des moyens pour vérifier l'identité ou l'autorisation d'un utilisateur du système
Methods, systems, and apparatus, including computer programs encoded on computer-storage media, for associating unclaimed communications nodes. In some implementations, a method includes generating, by a transmitting device, broadcast information including (i) identifying information of the transmitting device and (ii) an invalid address that does not represent a device configured to communicate with a given controller; and transmitting, by the transmitting device, the broadcast information within a receiving vicinity of the given controller that is configured to (i) receive the broadcast information and (ii) designate the transmitting device as available to communicate with one or more other transmitting devices using the identifying information of the transmitting device.
H04W 48/16 - ExplorationTraitement d'informations sur les restrictions d'accès ou les accès
H04W 24/02 - Dispositions pour optimiser l'état de fonctionnement
H04W 60/04 - Rattachement à un réseau, p. ex. enregistrementSuppression du rattachement à un réseau, p. ex. annulation de l'enregistrement utilisant des événements déclenchés
Methods and systems for resilient network communication are provided. In one aspect, a network includes multiple West NEs, spine elements, and East NEs. Each element has multiple physical communication interfaces. A working communication path connects the West NE to the East NE through a spine element. A protection communication path connects that West NE to that East NE through a different spine element. The working and protection communication paths terminate at the West NE and East NE at maintenance end points. A protection group is formed of the working communication path and the protection communication path. The protection group maintains a state designating an active path and a standby path. Maintenance groups at the spine elements monitor continuity messaging for their associated maintenance end points to determine network health. Faults between the West NEs and East NEs are detected through RDI and CCM.
H04L 41/0663 - Gestion des fautes, des événements, des alarmes ou des notifications en utilisant la reprise sur incident de réseau en réalisant des actions prédéfinies par la planification du basculement, p. ex. en passant à des éléments de réseau de secours
H04L 41/0604 - Gestion des fautes, des événements, des alarmes ou des notifications en utilisant du filtrage, p. ex. la réduction de l’information en utilisant la priorité, les types d’éléments, la position ou le temps
Methods and systems for resilient network communication are provided. In one aspect, a network includes multiple West NEs, spine elements, and East NEs. Each element has multiple physical communication interfaces. A working communication path connects the West NE to the East NE through a spine element. A protection communication path connects that West NE to that East NE through a different spine element. The working and protection communication paths terminate at the West NE and East NE at maintenance end points. A protection group is formed of the working communication path and the protection communication path. The protection group maintains a state designating an active path and a standby path. Maintenance groups at the spine elements monitor continuity messaging for their associated maintenance endpoints to determine network health. Faults and other disruptions to network health are overcome by switching states within the ELPS protection group. Service assignment is optimized.
H04L 41/0604 - Gestion des fautes, des événements, des alarmes ou des notifications en utilisant du filtrage, p. ex. la réduction de l’information en utilisant la priorité, les types d’éléments, la position ou le temps
H04L 41/0663 - Gestion des fautes, des événements, des alarmes ou des notifications en utilisant la reprise sur incident de réseau en réalisant des actions prédéfinies par la planification du basculement, p. ex. en passant à des éléments de réseau de secours
13.
Visualization mapping of network traffic telemetry
Methods, systems, and apparatus, including computer programs encoded on computer storage media, for visualizing network data. In some implementations, a server receives a query for network traffic playback data of network devices. The server extracts data from the query. The server obtains historical network traffic data. The server generates the network playback data by: (i) obtaining a plurality of historical network traffic elements from the historical network traffic data associated with a network device, (ii) obtaining state transitional data for each historical network traffic element of the plurality of historical network traffic elements, (iii) determining whether the state transitional data for each historical network traffic element comprises the prior state, and (iv) in response to determining the state transitional data comprises the prior state, the server appends the state transitional data to the network playback data. The server filters and provides the network playback data.
H04L 43/045 - Traitement des données de surveillance capturées, p. ex. pour la génération de fichiers journaux pour la visualisation graphique des données de surveillance
H04L 43/028 - Capture des données de surveillance en filtrant
H04L 43/062 - Génération de rapports liés au trafic du réseau
H04L 43/067 - Génération de rapports en utilisant des rapports de délai
14.
Optical line terminal configured to operate with optical network terminals that require different sets of OMCI parameters
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, implementing an Optical Line Terminal (OLT) that successfully communicates with Optical Network Terminals having various ONT Management Control Interface (OMCI) parameter configurations. The OLT is configured to perform operations including determining that two different sets of OMCI parameters are required to communicate with two different ONTs and registering both of the two different ONTs using two different sets of OMCI parameters. The registration includes configuring communications with a first ONT using a first set of OMCI parameters and configuring communications with a second ONT using a second set of OMCI parameters that differs from the first set of OMCI parameters. After completing the registering, the OLT exchanges network traffic with each of the two different ONTs according to their respective configurations.
A configurable connector is provided for a communication device, such as a gateway, that is located outdoors. The connector can engage with a corresponding interface of the gateway to provide communication signals and power signals to the communication device. The connector can be configured to select the power type provided to the communication device via the connector. The connector can have a first configuration to provide a first power type to the communication device or a second configuration to provide a second power type to the communication device. In the first configuration of the connector, power terminals of the connector can be connected directly to corresponding power wires providing the first power type. In the second configuration, the power terminals of the connector can be connected by jumpers to supplemental terminals in the connector that receive the second power type from the communication device.
G06F 1/26 - Alimentation en énergie électrique, p. ex. régulation à cet effet
H02M 7/06 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge sans électrode de commande ou des dispositifs à semi-conducteurs sans éléctrode de commande
Methods and systems for high speed failover in a network are provided. To provide faster Type C GPON redundancy failover, the disclosure herein describes the use of G.8031 1:1 ELPS in a single ended application to ensure path integrity through the network. Single ended 1:1 ELPS means that a network device is configured with 1:1 ELPS and switches paths in the event of disruption of the working communication path without the other underlying transport entities having knowledge of either the ELPS protocol or state machine. ELPS (Ethernet Linear Protection Switching, ITU G.8031) is a standardized method for protection switching between two point-to-point paths through a network, however its application here is quite novel. During a failure on the working path, traffic will switch over to the protection path. Type C PON protection provides a fully redundant path between the OLT and the ONU (2 separate PONs).
A filter for performing access control list (ACL) filtering may be used in place of highly-complex and resource-intensive TCAMs for access control. In this regard, the filter may be configured to compare packet header information to action-priority pairs stored in ACL tables. Each action-priority pair indicates at least one action to be performed for implementing a desired rule and a priority for that action. An access control action from an action-priority pair matching the header information may be performed in order to implement a desired access control rule for the received packet. If multiple action-priority pairs from the same table match the header information, then the priorities of the matching action-priority pairs may be compared to resolve the conflict. The circuitry of the filter is arranged such that exact-match searching can be performed on the ACL tables to reduce the complexity and cost of the filter.
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for job management in a distributed network include a prioritizer that determines a priority level for a job and inserts the job into a priority queue based on the priority level, a scheduler that, for each element in the distributed network, requests the priorities of one or more jobs scheduled for execution, evaluates, based on the priorities of the one or more jobs scheduled for execution, the priority of a particular job with respect to the element, determines, based on the priorities, that the network element is free to perform job processes, and upon determining that a network element is free, scheduling a particular job for execution, and an executor that determines that all local and remote resources required for the scheduled job are available and executes the job according to processes defined within the distributed network.
G06F 9/48 - Lancement de programmes Commutation de programmes, p. ex. par interruption
H04L 29/08 - Procédure de commande de la transmission, p.ex. procédure de commande du niveau de la liaison
H04L 67/10 - Protocoles dans lesquels une application est distribuée parmi les nœuds du réseau
H04L 67/61 - Ordonnancement ou organisation du service des demandes d'application, p. ex. demandes de transmission de données d'application en utilisant l'analyse et l'optimisation des ressources réseau requises en tenant compte de la qualité de service [QoS] ou des exigences de priorité
A distribution amplifier for a communication device such as a gateway is provided. The distribution amplifier can receive an input signal and provide multiple output signals. The distribution amplifier can have a transmission line that receives the input signal and multiple amplifier stages that are connected to the transmission line to receive the input signal. The output of the amplifier stages correspond to the output signals from the distribution amplifier. The transmission line has equally spaced connection points for the amplifier stages. The transmission line can be designed to have an impedance that results in the impedance of the transmission line with the connected amplifier stages having a final impedance that matches the input impedance to the transmission line.
The present disclosure generally relates to systems and methods for ensuring proper installation of telecommunication equipment. A system in some embodiments has a mobile device equipped with an image sensor that is used to acquire one or more images of a telecommunication equipment component that has been installed. The mobile device may then evaluate at least one such image to determine whether the component has been correctly installed. In addition, the evaluation performed by the mobile device may also be used to ensure that a captured image of the component meets certain predefined criteria for helping the user to capture a quality image of the component for the purpose of proving that it has been correctly installed. Thus, it is more likely that the image will be later useful for establishing that the component has been correctly installed, thereby possibly preventing the need for a truck roll.
Methods and systems for resilient network communication are provided. In one aspect, a network includes multiple edge network elements, core network elements, and off-network network elements. Each network element has multiple ports. Communication paths exist between edge network elements, traversing core network elements. A maintenance domain maintains communication resiliency in the network through maintenance domain entities that detect network communication faults. Maintenance domain entities are associated with ports of edge network elements. VLAN service provision to subscribers occurs over the network by mapping services to VLAN tags such that the service VLAN includes information about the resilient network. VLAN service assignment to maintenance domains is balanced.
A system for detecting an optical network condition, such as a fiber bend, has an optical line terminal (OLT) that is configured to communicate control information with optical network terminals (ONTs) indicating the transmit power levels and the receive power levels of optical signals, such as optical data signals, that are communicated between the OLT and the ONTs. Based on such information, line losses at different wavelengths are determined and then compared in order to detect an optical network condition, such as a fiber bend. Since the measurements can be performed on optical data signals ordinarily communicated between the OLT and the ONTs, the testing may be performed during data communication. Further, as long as optical communication between the OLT and the ONTs is possible, a fiber bend or other network condition may be detected at any point along the optical path.
H04B 10/08 - Equipement de surveillance, d'essai ou de mesure des défauts
H04B 10/079 - Dispositions pour la surveillance ou le test de systèmes de transmissionDispositions pour la mesure des défauts de systèmes de transmission utilisant un signal en service utilisant des mesures du signal de données
Methods and systems for context-aware distributed computing. In one aspect, a system includes a work administrator system; an API; a worker module; and a work administrator. One or more worker modules register with one or more work administrators. The worker modules may inform the work administrators of their processing capabilities and capacity. The work administration system receives a request for processing via the API. A work administrator parses a request into one or more discrete work requests and publishes each work request to the worker modules. The worker modules notify the work administrator whether they can perform the work, along with load and capabilities. The work administrator a worker module to perform each work request. When a worker module completes the work, it notifies the work administrator. The work administration system may aggregate the results from one or more worker modules and provide a response via the API.
Circuitry of an optical line terminal (OLT) can be controlled to be compatible with optical modules of different optical protocols having different electrical connectivity requirements. In some embodiments, the OLT has a controller that is configured to communicate with an optical module plugged or otherwise mated with a socket of the OLT in order to discover a module type of the optical module. Based on the detected module type, the controller is configured to control the electrical characteristics of the OLT circuitry so that it is compatible with the electrical and operational requirements of the optical module. Thus, the OLT is compatible for use with any of a plurality of optical module types.
H04Q 11/00 - Dispositifs de sélection pour systèmes multiplex
H04B 10/80 - Aspects optiques concernant l’utilisation de la transmission optique pour des applications spécifiques non prévues dans les groupes , p. ex. alimentation par faisceau optique ou transmission optique dans l’eau
25.
Systems and methods for detecting faults in a telecommunication system using retrain data
Systems and methods are provided for detecting fault conditions associated with an distribution point in a communication system using retrain event data. The retrain event data is collected for all of the ports associated with a target site of the distribution point. The collected retrain event data can then be organized into several different categories such as upstream related retrain events and downstream related retrain events. A screening criteria can be selected that is associated with a fault condition. The screening criteria can be evaluated using one or more evaluation metrics. Each evaluation metric can be based on normalized parameters generated from the categorized retrain event data. If all of the evaluation metrics associated with a screening criteria are satisfied, then the screening criteria is satisfied and the target site is determined to have a fault condition.
A coupling module can be used to communicate high speed signals between an optical transceiver and a processing module of an optical communication device, such as an optical line termination (OLT) or an optical network unit (ONU). The coupling module can adjust the common mode voltage level of a differential signal output by the optical transceiver to the common mode voltage level required by the processing module. In addition, the coupling module splits each of the differential output signals from the optical transceiver and passes the split signals to both a high-pass filter and a low-pass filter that are connected in parallel. An adapter module can be connected to the coupling module such that the coupling module can receive different differential signals from different optical transceivers.
H04B 10/80 - Aspects optiques concernant l’utilisation de la transmission optique pour des applications spécifiques non prévues dans les groupes , p. ex. alimentation par faisceau optique ou transmission optique dans l’eau
A laser tuning system includes an optical transmitter having a tunable laser that transmits optical signals at various wavelengths to an optical fiber through an optical component, which attenuates a range of wavelengths of the optical signal. An optical detector detects optical returns that have been reflected from the fiber at points beyond the optical component. A tuning control module analyzes the optical returns in order to provide a tuning value for tuning the laser to a desired wavelength. As an example, the laser may be tuned in order to maximize or otherwise increase the amount of optical power passing through the optical component.
H04B 10/079 - Dispositions pour la surveillance ou le test de systèmes de transmissionDispositions pour la mesure des défauts de systèmes de transmission utilisant un signal en service utilisant des mesures du signal de données
H04J 14/02 - Systèmes multiplex à division de longueur d'onde
H01S 3/105 - Commande de l'intensité, de la fréquence, de la phase, de la polarisation ou de la direction du rayonnement, p. ex. commutation, ouverture de porte, modulation ou démodulation par commande de la position relative ou des propriétés réfléchissantes des réflecteurs de la cavité
H04B 10/071 - Dispositions pour la surveillance ou le test de systèmes de transmissionDispositions pour la mesure des défauts de systèmes de transmission utilisant un signal réfléchi, p. ex. utilisant des réflectomètres optiques temporels [OTDR]
G01S 17/10 - Systèmes déterminant les données relatives à la position d'une cible pour mesurer la distance uniquement utilisant la transmission d'ondes à modulation d'impulsion interrompues
28.
Systems and methods for locating faults in a telecommunication line using line test data
A fault in a telecommunication line can be identified and located using line test data for that telecommunication line. A series of line tests can be performed on a selected telecommunication line experiencing problems. The results from the series of line tests can be analyzed to identify differences in the results between the line tests. The identified differences can then be used to determine if a fluctuation is present in the telecommunication line. If a fluctuation is determined to be present in the telecommunication line, the identified differences can also be used to determine a location of the fluctuation relative to reference location such as the distribution point where the telecommunication line originates.
A coupling module can be used to communicate high speed signals between an optical transceiver and a processing module of an optical communication device, such as an optical line termination (OLT) or an optical network unit (ONU). The coupling module can adjust the common mode voltage level of a differential signal output by the optical transceiver to the common mode voltage level required by the processing module. In addition, the coupling module splits each of the differential output signals from the optical transceiver and passes the split signals to both a high-pass filter and a low-pass filter that are connected in parallel. The outputs of the high-pass filter and the low-pass filter from different paths of the differential signal are cross-coupled and combined to provide a differential signal to the processing module.
A system identifies rogue optical network units (ONUs) on a passive optical network that uses time and wavelength division multiplexing. An optical line terminal (OLT) is configured to recognize the occurrence of errors on the upstream transmission over the network. When those errors reach a predetermined threshold, the OLT attempts to identify potential rogue ONUs by controlling the ONUs to tune to different wavelengths. The OLT first controls the ONUs to transmit on a first wavelength. The OLT then iteratively divides the ONUs into multiple groups, each group being assigned a different wavelength for upstream transmission. The OLT them monitors upstream transmission to determine which group of ONUs is exhibiting rogue behavior. This process is repeated until a small group of ONUs is isolated as a potential rogue. The potentially rogue ONUs are individually analyzed and one or more ONUs is positively identified. The system then tunes the rogue ONUs to one or more isolated channels so as not to interfere with communication by other ONUs.
H04B 10/079 - Dispositions pour la surveillance ou le test de systèmes de transmissionDispositions pour la mesure des défauts de systèmes de transmission utilisant un signal en service utilisant des mesures du signal de données
H04J 14/02 - Systèmes multiplex à division de longueur d'onde
H04B 10/03 - Dispositions pour le rétablissement de communication après défaillance
Systems and techniques are disclosed for using machine learning to dynamically detect physical impairments in lines of a subscriber network. In some implementations, per-tone data for a line of a subscriber network and data indicating a set of one or more scores is obtained. Each score included in the set of scores indicates a conditional likelihood that the line has a type of impairment with respect to a different feature subset ensemble. The per-tone data and the data indicating the set of one or more scores is provided as input to a model. The model is trained to output, for each of different sets of feature subset ensembles, a confidence score representing an overall likelihood that a particular line has a physical impairment. Data indicating a particular confidence score representing an overall likelihood that the line has the physical impairment is obtained. The particular confidence score is provided for output.
Methods, systems, and apparatus for hosting an optical line terminal (OLT) bonding engine are disclosed. In one aspect, packet data for transmission over a passive optical (PON) is selected. A transmission wavelength assigned to the packet data is identified. A particular OLT is selected from among the additional OLTs to transmit the packet data over the PON based on the corresponding wavelength of the particular OLT matching the identified transmission wavelength assigned to the packet. The packet data is formatted based on the particular OLT. The formatted packet data is transmitted to the particular OLT for transmission over the communications interface.
Multiple ports of a vectored digital subscriber line (DSL) system can be automatically reconfigured to respond to a fault or defect associated with another one of the ports of the system. Information regarding retrain events for the ports of the system can be examined to identify the “bad” port with the associated fault or defect and the corresponding group of ports affected by the bad port. The affected group of ports can be identified as a group of ports that all were retrained within a predetermined time period and for common retrain reasons (e.g., 1 or 2 different retrain reasons). Once the affected group of ports is identified, the affected group of ports and the bad port can receive corresponding repair profiles to reconfigure the ports to respond to the fault or defect.
H04B 1/38 - Émetteurs-récepteurs, c.-à-d. dispositifs dans lesquels l'émetteur et le récepteur forment un ensemble structural et dans lesquels au moins une partie est utilisée pour des fonctions d'émission et de réception
A connection system has a high-density, high-speed connector that is electrically connected to a plurality of cables by a tiered circuit board. Edges of the circuit board are offset in order to form steps on which conductive pads may be formed. Each set of pads on a given step may be electrically connected to one or more conductors of a cable, such as a twinax ribbon cable. Thus, each of the cables may be coupled to one or more conductive pads on a respective step of the circuit board such that a large number of conductors may be electrically interfaced with the connector in a relatively small space, unencumbered by the bend radius of the cable. In addition, the cables may be coupled to the circuit board in a manner that does not require significant bending at the ends of the cables helping to preserve signal integrity. That is, conductive paths turn at high angles (e.g., close to 90 degrees) within the circuit board rather than at the ends of the cables connected to the circuit board.
H01R 12/00 - Association structurelle de plusieurs éléments de connexion électrique isolés les uns des autres, spécialement conçue pour des circuits imprimés, p. ex. des cartes de circuit imprimé [PCB], des câbles plats ou à ruban ou des structures similaires généralement planes, p. ex. barrettes de raccordement, blocs de connexionDispositifs de couplage spécialement conçus pour des circuits imprimés, des câbles plats ou à ruban ou des structures similaires généralement planesBornes spécialement conçues pour établir le contact avec, ou pour être insérées dans des circuits imprimés, des câbles plats ou à ruban ou des structures similaires généralement planes
H01R 24/50 - Dispositifs de couplage en deux pièces, ou l'une des pièces qui coopèrent dans ces dispositifs, caractérisés par leur structure générale ayant des contacts disposés concentriquement ou coaxialement spécialement adaptés à la haute fréquence montés sur une PCB [carte de circuits imprimés]
H01R 12/72 - Dispositifs de couplage pour circuits imprimés rigides ou structures similaires se couplant avec la bordure des circuits imprimés rigides ou des structures similaires
35.
Tuning a multi-channel optical transmission system
An optical transmission system includes a laser module generating a modulated optical waveform, including both amplitude and frequency modulation, at center frequencies corresponding to different operating temperatures; and an optical shaping filter, with passbands corresponding to the different center frequencies, that converts at least part of the frequency modulation to additional amplitude modulation. The optical transmission system is tuned by: determining a range of temperatures at which the laser module center frequencies are within a passband of the optical shaping filter; setting the laser module to a temperature, within the range of temperatures, at which the modulated optical waveform is within the passband; measuring an average output power of the optical shaping filter; and adjusting the temperature of the laser module to a target temperature, within the range of temperatures, at which an output condition is achieved, based on the average output power and/or extinction ratio of the filtered waveform.
An electronic system may include a housing and one or more electronic modules. The housing and electronic modules may be configured to allow different numbers and types of electronic modules to be attached to the exterior of the housing.
H05K 5/00 - Enveloppes, coffrets ou tiroirs pour appareils électriques
H05K 5/02 - Enveloppes, coffrets ou tiroirs pour appareils électriques Détails
H05K 9/00 - Blindage d'appareils ou de composants contre les champs électriques ou magnétiques
H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage
H05K 7/14 - Montage de la structure de support dans l'enveloppe, sur cadre ou sur bâti
H01R 25/00 - Pièces de couplage adaptées à la coopération simultanée avec plusieurs pièces complémentaires identiques, p. ex. pour la distribution d'énergie à plusieurs circuits
37.
Discrete multi-tone (DMT) systems and methods for mitigating interpolation errors from crosstalk vectoring
In a vectored Discrete Multi-Tone (DMT) system that employs trellis encoding, tones of a DMT signal are paired by a trellis encoder, and parity information is shared between the paired tones. In accordance with some embodiments, the tones are paired based on an interpolation pattern that is used to calculate vectoring coefficients in an effort to mitigate interpolation error. Specifically, a tone having a vectoring coefficient with a relatively large interpolation error may be paired with a tone having a vectoring coefficient with a relatively small interpolation error thereby reducing the peak interpolation error among paired tones within the system. By reducing the peak interpolation error in the paired tones, the number of communication lines included in a vectoring group can be increased without significantly degrading signal quality.
An optical transmission system includes a laser module that generates a modulated optical waveform including both amplitude and frequency modulation; and an optical shaping filter that converts at least part of the frequency modulation to additional amplitude modulation. The optical transmission system is tuned by: measuring, based on the amplitude modulation of a filtered waveform output from the optical shaping filter, an average output power of the optical shaping filter; and adjusting a temperature of the laser module to a first temperature at which a target output condition is achieved, including: adjusting the temperature of the laser module to a first target temperature at which the average output power of the filtered waveform satisfies a first output criteria, or adjusting the temperature of the laser module to a second target temperature at which the output power and extinction ratio of the filtered waveform satisfy a second output criteria.
A driver circuit for a transmitter includes a main path in parallel with an error correction path used for feed-forward error correction. The main path has an amplifier for amplifying a data signal to be transmitted from the transceiver. In parallel with the amplifier is a feedforward error correction circuit that provides an error correction signal that compensates for distortion introduced by the amplifier when the error correction signal is combined with the amplifier's output. The error correction circuit is designed to have a high impedance output so that voltage swings in the data signal do not create a demand for significant current from the feedforward error correction circuit, thereby reducing the current of the error correction signal. As an example, it is possible for the current of the error correction signal to substantially match that which is required to cancel the amplifier distortion, thereby minimizing distortion of the signal.
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for an artificial intelligence system. In one aspect, a system includes multiple artificial intelligence skill agents that have each been trained to perform different actions in a telecommunications system. The system also includes an orchestrator agent that interacts with each of the artificial intelligence skill agents and coordinates which of the artificial intelligence agents performs actions in response to user inputs. The orchestrator agent receives a user input and determines an intent expressed by the user input. The orchestrator agent transmits an instruction to an artificial intelligence skill agent to perform an action that provides a response to the intent. In response to receiving the instruction from the orchestrator agent, the artificial intelligence skill agent performs the action when the artificial intelligence skill agent is capable of carrying out the action.
Methods, systems, and apparatus for provisioning a network device are disclosed. In one aspect, a message is received by a translation device from a controller. A determination is made, by the translation device, that the received message includes data that is destined for multiple different downstream network devices. A determination is made that a first downstream network device among the multiple different downstream network devices is incapable of being provisioned using a communications protocol of the received message. Data from the received message, that is destined for the first downstream network device, is translated, by the translation device, from the communications protocol of the received message to a translated message defined in a different protocol that is required to provision the first downstream network device. The translated message is transmitted, by the translation device, to the first downstream network device according to the different protocol.
G06F 15/173 - Communication entre processeurs utilisant un réseau d'interconnexion, p. ex. matriciel, de réarrangement, pyramidal, en étoile ou ramifié
H04L 12/24 - Dispositions pour la maintenance ou la gestion
H04L 29/08 - Procédure de commande de la transmission, p.ex. procédure de commande du niveau de la liaison
42.
Telecommunications network troubleshooting systems
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for telecommunications network troubleshooting. In one aspect, a method includes obtaining multiple current observations characterizing current operation of a telecommunications network, the multiple observations including performance monitoring data for the network and quality of service data for the network. One or more prior network states for the network are obtained. A current state of the network is determined, by a machine learning model, based on the current observations and the one or more prior network states. One or more actions are performed based on the current state of the network, including, when the current state of the network is an abnormal state, taking an action that is mapped to the abnormal state.
H04L 12/26 - Dispositions de surveillance; Dispositions de test
43.
Time-division duplexing systems and methods for reducing crosstalk associated with signals communicated by coordinated dynamic time assignment transceivers
A time-division duplexing (TDD) system reduces crosstalk associated with signals communicated by coordinated dynamic time assignment (cDTA) transceivers. In some embodiments, the TDD system has both cDTA transceivers and legacy transceivers. Based on the dynamic allocation of downstream and upstream timeslots for the cDTA transceivers, timeslots for the legacy transceivers are selectively muted in an effort to limit the amount of near-end crosstalk (NEXT) that occurs in the TDD system. Thus, subscriber lines coupled to both cDTA transceivers and legacy transceivers may be bound within the same binder without significantly increasing crosstalk to unacceptable levels.
H04J 3/10 - Dispositions pour reduire la diaphonie entre canaux
H04J 3/16 - Systèmes multiplex à division de temps dans lesquels le temps attribué à chacun des canaux au cours d'un cycle de transmission est variable, p. ex. pour tenir compte de la complexité variable des signaux, pour adapter le nombre de canaux transmis
H04L 5/14 - Fonctionnement à double voie utilisant le même type de signal, c.-à-d. duplex
H04B 3/32 - Réduction de la diaphonie, p. ex. par compensation
Methods, systems, and apparatus for Internet Protocol security (IPsec) selector coalescing for per-host Security Associations (SAs) are disclosed. In one aspect, separate per-host SAs are assigned, by a network communications device including one or more processors, to each of two or more different source communication devices that each communicates with corresponding destination devices. While the separate per-host SAs are assigned to each of the two or more different source communication devices, a group SA is generated. The group SA is assigned, by the network communications device, to all of the two or more different source communication devices. The assignment of the separate per-host SAs is removed from each of the two or more different source communication devices.
G06F 21/00 - Dispositions de sécurité pour protéger les calculateurs, leurs composants, les programmes ou les données contre une activité non autorisée
H04L 29/06 - Commande de la communication; Traitement de la communication caractérisés par un protocole
Telecommunications enclosures are described in this document. In one aspect, a telecommunications enclosure includes side panels having seals and an enclosure top connected, independent of a frame, to top ends of the side panels. The enclosure top has an enclosure top outer end that extends between the side panels and includes a seal. An interior panel is connected, independent of a frame, to side panels and has an interior panel outer end that extends between the side panels. The interior panel is separated from the enclosure top by a first distance and separated by a second distance from bottom ends of the side panels. A removable door is formed to engage the seals when the removable door is secured to the frameless telecommunications enclosure.
G06F 12/0804 - Adressage d’un niveau de mémoire dans lequel l’accès aux données ou aux blocs de données désirés nécessite des moyens d’adressage associatif, p. ex. mémoires cache avec mise à jour de la mémoire principale
G06F 16/22 - IndexationStructures de données à cet effetStructures de stockage
Methods, systems, and apparatus for payload compression are disclosed. In one aspect, a determination is made that one or more fields of a packet to be transmitted are compressible based on a compression table. Prior to transmitting the packet and in response to the determination, the one or more fields of the packet are compressed based on the compression table. Compressing the one or more fields of the packet includes removing the one or more fields from the packet to generate a compressed packet. One or more bits in a header of the compressed packet are modified to indicate at least one compression entry in the compression table associated with the compression performed on the compressed packet.
G06F 15/16 - Associations de plusieurs calculateurs numériques comportant chacun au moins une unité arithmétique, une unité programme et un registre, p. ex. pour le traitement simultané de plusieurs programmes
H04L 29/06 - Commande de la communication; Traitement de la communication caractérisés par un protocole
H04Q 11/00 - Dispositifs de sélection pour systèmes multiplex
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for optimizing PON efficiency using a variable FEC. In one aspect, an OLT broadcasts a message over an optical network, and receives, from an ONU, a response to the message. The OLT transmits activation parameters specifying that the OLT supports multiple different FEC code lengths when FEC is activated, and receives from the ONU, a set of FEC code lengths supported by the ONU. The OLT also receives performance measures collected by the ONU. The OLT selects, from among the FEC code lengths supported by the ONU, one or more appropriate FEC code lengths for communications between the ONU and the OLT based on the performance measures collected by the ONU and performance measures collected by the OLT. The OLT configures the ONU to utilize the appropriate FEC code length.
Methods, systems, and apparatus for configuring a network device are disclosed. In one aspect, a network address that is assigned to the network device by a network address server is detected by an equipment configuration device. The network address server differs from the network device. In response to detecting the network address, a set of connection parameters that connect the network device to a controller device is transmitted by the equipment configuration device and to the network device. The set of connection parameters is transmitted outside of communications, transmitted by the network address server, that assigned the network address to the network device.
A communication system has a network access device (NAD) that is designed to deliver Plain Old Telephone Service (POTS) along with high-speed data to Customer Premises Equipment (CPE). The NAD is backpowered by the CPE across a subscriber line. When backpower is provided from the CPE, circuitry (referred to as a “POTS signaling element”) within the network access device converts POTS control signaling to digital data for transmission to the CPE. The band vacated by the POTS control signaling is used for the power signal on the subscriber line. In the absence of backpower, components of the network access device are bypassed, thereby providing POTS in the event of a power failure. The NAD receives advance warning of the backpowering so that it can disable the bypassing in order to prevent the power signal from leaking through the NAD to the network.
H04M 19/00 - Dispositions d'alimentation de courant pour systèmes téléphoniques
H04M 11/06 - Transmission simultanée téléphonique et de données, p. ex. transmission télégraphique sur les mêmes conducteurs
H04L 12/28 - Réseaux de données à commutation caractérisés par la configuration des liaisons, p. ex. réseaux locaux [LAN Local Area Networks] ou réseaux étendus [WAN Wide Area Networks]
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for reducing jitter and latency in a PON. In one aspect, an optical network unit includes a downstream optical receiver configured to receive downstream traffic over a first wavelength; a first upstream optical transmitter having a first data rate; a second upstream optical transmitter having a second data rate that is higher than the first data rate; and a controller configured to direct upstream traffic to one of the first upstream optical transmitter or the second upstream optical transmitter depending on a traffic type of the traffic. Traffic having a control plane traffic type is directed to the first upstream optical transmitter and traffic having a data plane traffic type is directed to the second upstream optical transmitter.
Methods, systems, and computer readable medium for initializing communication for multiple transceivers. In one aspect, a method includes launching an initialization process of a first transceiver. The initialization process includes obtaining, for a second transceiver, a set of handshake information and inserting the set of handshake information of the second transceiver into one or more registers that are transmitted with first handshake information of the first transceiver during initialization of the first transceiver. The initialization process includes initiating a communications channel for the second transceiver over the same physical communications medium using the set of handshake information that was inserted into the one or more registers, including transmitting, by the first transceiver, the first handshake information of the first transceiver together with the set of handshake information for the second transceiver over the same physical communications medium using the given set of tones.
First data of a hierarchical data structure is accessed. A directed graph is generated based on the first data. Generating the directed graph includes creating multiple nodes representing the first data and linking first nodes representing data at a particular level of the hierarchical data structure to second nodes representing data at a lower level of the hierarchical data structure. A query requesting information from the hierarchical data structure is received. A particular node, that is a starting point for searching the directed graph based on the query, is identified within the directed graph. Out-links, that link the particular node to other nodes of the directed graph, are identified. Each of the other nodes, that is connected to the particular node by the out-links, is inspected to determine which of the other nodes represents responsive data matching the query. The query is responded with the responsive data.
An attenuation circuit with stages having constant dB steps between stages is provided. The attenuation circuit can be configured as a ladder network using resistors having three different values. A first resistor can be connected between the last stage of the attenuation circuit and ground and have a first predetermined resistance. One or more second resistors can be connected in each stage and have a second predetermined resistance based on the first predetermined resistance and the dB step between stages. One or more third resistors can be connected in parallel to the first resistor for the remaining stages and have a third predetermined resistance based on the first predetermined resistance and the dB step between stages.
Methods, systems, and apparatus, for receiving, by an optical line terminal, an upstream communication frame from an optical network terminal, the upstream communication frame including a data packet and a last fragment bit; determining, by the optical line terminal, a fragmentation of the data packet of the upstream communication frame; and processing, by the optical line terminal, the data packet of the upstream communication packet based on the fragmentation of the data packet, including: when the data packet is fragmented, examining a last fragment bit of the upstream communication frame, and storing, in a memory device, the data packet when a state of the last fragment bit indicates that the data packet is not a completion; and when the data packet is not fragmented, transmitting the data packet upstream without storing the data packet in the memory device.
An electronic module for engaging an electronic equipment enclosure may include a module body having a front face, at least one electronic device in the module body, and a resilient sheet-metal member connected to the module body. The resilient sheet-metal member may have a face portion substantially coextensive in area with the front face of the module body and may have a tab portion substantially perpendicular to the face portion. The tab portion may include a catch portion configured to engage a portion of the enclosure.
A driver circuit for an optical transmitter includes a main path in parallel with an inverting path. The data signals from the main path and the inverting path can be combined to generate an output signal for a laser diode. The main path can communicate a data signal via a first transmission line and the inverting path can communicate an inverted data signal via a second transmission line. The second transmission line can be longer than the first transmission line in order to delay the inverted data signal. In addition, the inverted data signal can be weighted before being combined with the data signal from the main path.
H04B 10/80 - Aspects optiques concernant l’utilisation de la transmission optique pour des applications spécifiques non prévues dans les groupes , p. ex. alimentation par faisceau optique ou transmission optique dans l’eau
57.
Adaptive trellis coding enabling and disabling in discrete multitone data communications
In a transmitter, first and second sets of discrete multitone (DMT) sub-carrier signals or tones are identified. First and second bit groups of a payload data frame corresponding to the first and second sets of tones are selected. The first bit group is then trellis encoded. The second bit group is not trellis encoded. The first trellis coded tone group and the second bit group are then constellation mapped to produce a DMT symbol for transmission. A receiver may use an estimate of signal-to-noise ratio (SNR) of each tone to determine whether to select the tone for inclusion in the first or second set of tones. The receiver may provide the transmitter with information indicating whether a tone is included the first or second set of tones.
An optical transmission system transmits an optical signal over an optical path. Reflections of the optical signal are received at an optical detector which generates an analog reflection signal. The analog reflection signal includes both a desired portion and an undesired portion. Correlators of an OTDR system generate correlation values based on the analog reflection signal. A subset of the correlation values are associated with locations of the optical path that cause the reflections that result in the undesired portion of the reflected signal. A filter uses these correlation values to generate a cancellation signal that is subtracted from the analog reflection signal, reducing the undesired portion of the signal that must be processed.
H04B 10/2507 - Dispositions spécifiques à la transmission par fibres pour réduire ou éliminer la distorsion ou la dispersion
H04B 10/071 - Dispositions pour la surveillance ou le test de systèmes de transmissionDispositions pour la mesure des défauts de systèmes de transmission utilisant un signal réfléchi, p. ex. utilisant des réflectomètres optiques temporels [OTDR]
Methods, systems, and apparatus for generating a delay profile for different priority classifications. In one aspect, multiple latency probes are transmitted by a source node to a target network node. Each latency probe has a different priority code. A response to each of the transmitted latency probes is received by the source node from the target network node. Based on the received responses, a delay profile for the target network node is generated by the source node. The delay profile provides multiple network latency measurements for packets transmitted to the target network node with the different priority codes. A user interface of a display is updated to visually present at least a portion of the delay profile.
A system and method is provided for prioritizing packets at an Ethernet interface of a network device based on the destination MAC address in the packets. The Ethernet interface has a MAC table that lists the MAC addresses that can be accepted by the Ethernet interface. The MAC table can include one or more MAC addresses associated with low priority packets and one or more MAC addresses associated with high priority packets. When conditions at the network device exceed a threshold, the MAC table can be updated to disable or delete the MAC addresses associated with the low priority packets. By disabling the MAC addresses for low priority packets, only the MAC addresses associated with high priority packets remain in the MAC table, thereby enabling only high priority packets to be recognized and passed by the Ethernet interface to the CPU.
H04L 12/28 - Réseaux de données à commutation caractérisés par la configuration des liaisons, p. ex. réseaux locaux [LAN Local Area Networks] ou réseaux étendus [WAN Wide Area Networks]
H04L 12/741 - Traitement de l'adressage d’en-tête pour le routage, p.ex. table de correspondance
H04L 12/721 - Procédures de routage, p.ex. routage par le chemin le plus court, routage par la source, routage à état de lien ou routage par vecteur de distance
H04L 29/12 - Dispositions, appareils, circuits ou systèmes non couverts par un seul des groupes caractérisés par le terminal de données
H04L 12/26 - Dispositions de surveillance; Dispositions de test
61.
Systems and methods for bonding multiple data links with differential delay
An aggregation module receives a data packet. A bonding engine of the aggregation module breaks the data packet into fragments, and each fragment is part of a bonding group that is assigned a sequence identifier that allows the data packet to be reconstructed from the fragments. Each fragment is provided to one of a plurality of transmitters to be transmitted over a data link. When a noise event occurs on one of the data links, the fragments stored at the transmitter associated with that data link are transferred to another transmitter within the same bonding group for transmission over a different data link.
H04L 12/801 - Commande de flux ou commande de congestion
H04L 12/861 - Mise en mémoire tampon de paquets ou mise en file d’attente; Ordonnancement de file d’attente
H04L 12/28 - Réseaux de données à commutation caractérisés par la configuration des liaisons, p. ex. réseaux locaux [LAN Local Area Networks] ou réseaux étendus [WAN Wide Area Networks]
H04L 1/08 - Dispositions pour détecter ou empêcher les erreurs dans l'information reçue par émission répétée, p. ex. système Verdan
H04L 1/16 - Dispositions pour détecter ou empêcher les erreurs dans l'information reçue en utilisant un canal de retour dans lesquelles le canal de retour transporte des signaux de contrôle, p. ex. répétition de signaux de demande
62.
Scalable programming architecture for telecommunications devices
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for managing operation of telecommunications devices. In one aspect, a method includes actions of executing a container program that lacks scripts that manage operation of telecommunications devices that interact with a cloud platform, monitoring messages generated by the telecommunications, filtering the messages to select a subset of messages that trigger execution of the scripts by the container program, identifying, for each selected message in the subset of messages and from an index of available scripts, a particular script that is executed in response to receipt of the selected message, merging each particular script with the container program to create a management program that manages operation of the telecommunications devices based on the subset of messages, and managing operation of the telecommunications devices with the management program.
A software upgrade in a data communication network may be provided by a first node. The first node may transfer a software unit to other nodes in the network. The first node may also monitor for receipt of a notification indicating completion of storage of the software unit by a node. The first node may further transmit a reboot command to the other nodes. The first node transmits the reboot command in response to receipt of the completion notification from each of the other nodes. The first node does not transmit the reboot command to any of the other nodes until the first node has received a completion notification from each of the other nodes.
Methods, systems, and apparatus for correlating communications measurements are disclosed. In one aspect, a communications measurement of a maintenance entity (ME) is received. The communications measurement is stored and correlated with a maintenance entity group (MEG) identifier and an ME identifier received with the communications measurement. The stored communications measurement is registered with one or more previously received communications measurements. Each previously received communications measurement is associated with an availability indicator corresponding to an availability of the ME at a time the particular communications measurement was obtained. An availability of the ME during a given time interval is determined based on availability indicators of consecutive communications measurements for the ME. Availability indicators of at least one of the one or more previously received communications measurements are changed after the ME has been determined to be unavailable during the given time interval.
A network switch allocates large-scale memory units as data packets are received in order to implement per-queue, circular egress buffers. Each large-scale memory unit is larger than the maximum packet length of the received packets and is capable of storing a plurality of data packets, thereby reducing the number of memory allocation events that are required to process a given number of data packets. Efficient techniques for writing to and reading from the large-scale egress memory units have been developed and may be used to reduce processing delays. Such techniques are compatible with relatively inexpensive memory devices, such as dynamic random access memory (DRAM), that may be separate from the circuitry used to process the data packets. The described architectures are easily scalable so that that a large number of ports (e.g., thousands) may be implemented at a relatively low cost and complexity without introducing significant processing delays.
Systems and methods are provided for an optical network unit (ONU) to automatically set its output power level for messages to be transmitted on a passive optical network. The ONU can autonomously determine the appropriate power level based on information provided to the ONU by an optical line terminal (OLT) and characterization by the ONU of optical signals it receives from the fiber. Specifically, the OLT can provide the ONU with control data indicative of the power level used by the OLT to transmit the message and the desired power level of the OLT for messages from the ONU. The ONU can measure the power level of at least one message received from the OLT and determine the path loss based on the measured power and the control data. The ONU can then automatically determine a suitable power level for its response message such that unacceptable levels of crosstalk between channels are avoided without having to perform an iterative power-leveling process that otherwise may introduce significant delays.
H04J 14/02 - Systèmes multiplex à division de longueur d'onde
H04B 10/079 - Dispositions pour la surveillance ou le test de systèmes de transmissionDispositions pour la mesure des défauts de systèmes de transmission utilisant un signal en service utilisant des mesures du signal de données
Methods, systems, and apparatus for selective MAC address learning are disclosed. In one aspect, multiple different packets are received by a telecommunications device. The multiple different packets include different source MAC addresses. For each of the multiple different packets, a distribution type is determined. The distribution type is one of a one-to-one distribution type or a one-to-many distribution type. Based on the determined distribution type of the particular packet, a forwarding table of the telecommunications device is selectively updated. When the particular packet has the one-to-many distribution type, a source MAC address that is included in the particular packet is not stored in the forwarding table. When the particular packet has the one-to-one distribution type, the source MAC address that is included in the particular packet is stored in the forwarding table.
H04L 12/743 - Traitement de l'adressage d’en-tête pour le routage, p.ex. table de correspondance par des techniques de hachage
H04L 12/751 - Mise à jour ou découverte de la topologie
H04L 12/721 - Procédures de routage, p.ex. routage par le chemin le plus court, routage par la source, routage à état de lien ou routage par vecteur de distance
H04L 12/761 - Routage de diffusion ou de multidiffusion
A memory system has a plurality of memory stages in which each stage stores a respective portion of a data table. A request for reading an entry of the table is processed serially by the memory stages, and each stage narrows the range of table entries possibly storing the requested data. Based on the results of the previous stages, the final stage is able to quickly determine whether the requested data is stored in the data table and, if so, to retrieve the requested data from such table.
An authentication relay and a NAT module of a telecommunication system facilitate communication between authentication clients and an authentication server. The authentication relay identifies authentication messages from the authentication clients intended for the authentication server. The authentication relay repackages the identified authentication message to add additional information. The NAT module translates the private IP address and UDP port number of the authentication client included in the original authentication message into a public IP address and unique UDP port number included with the repackaged authentication message sent to the authentication server. The same public IP address is used for authentication messages from a plurality of authentication clients thereby reducing the number of IP addresses required by the system. When a reply message is received from the authentication server, the NAT module uses the unique port number in the reply message to readdress the reply message for the authentication client.
Methods, systems, and apparatus for communicating over a radio link by devices with broadband connectivity are disclosed. In one aspect, a telecommunications device includes a first transceiver, a second transceiver, and a state monitor. The first transceiver communicates over a broadband link. The second transceiver communicates over a radio link. The radio link is a Low-Power Wide-Area Network (LPWAN) link. The state monitor includes one or more processes that monitor a state of the telecommunications device, and in response to the state of the telecommunications device being one of a plurality of pre-specified states, transmit, using the second transceiver, data specifying the state of the telecommunications device over the radio link.
H04B 10/08 - Equipement de surveillance, d'essai ou de mesure des défauts
H04B 10/079 - Dispositions pour la surveillance ou le test de systèmes de transmissionDispositions pour la mesure des défauts de systèmes de transmission utilisant un signal en service utilisant des mesures du signal de données
H04B 10/071 - Dispositions pour la surveillance ou le test de systèmes de transmissionDispositions pour la mesure des défauts de systèmes de transmission utilisant un signal réfléchi, p. ex. utilisant des réflectomètres optiques temporels [OTDR]
H04B 10/2575 - Radio sur fibre, p. ex. signal radio modulé en fréquence sur une porteuse optique
A system for performing failover switches in an optical network, such as a time and wavelength division passive optical networks (TWDM PON) like NG-PON2, includes a backup optical line terminal (OLT) for backing up communications of a primary OLT. The backup OLT is configured to allocate small upstream time slots, referred to herein as “de minimis” time slots, to at least one optical network terminal (ONT) communicating with the primary OLT during normal operation. When a failure occurs that prevents communication between the ONT and the primary OLT, the ONT autonomously tunes to the upstream and downstream wavelength pairs of the backup OLT and begins to transmit data to the backup OLT in the de minimis time slot allocated to it. The presence of data in the de minimis time slot indicates the occurrence of a failover switch to the backup OLT, and the backup OLT then begins to allocate time slots to this ONT, which is normally serviced by the primary OLT according to its normal TDM algorithm.
Methods, systems, and apparatus for automatically identifying rogue Optical Network Unit (ONU) are disclosed. In one aspect, an Optical Line Terminal (OLT) determines dark power on a fiber optic link over a period of time. For a given ONU, the OLT determines an optical power of high signals and an optical power of low signals received over the fiber optic link during a timeslot assigned to the given ONU, determines a modified optical power of the high signals and a modified optical power of the low signals based on differences between the optical power of the respective signals and the dark power, determines an extinction ratio based on a ratio of the modified optical power of the high signals relative to the modified optical power of the low signals, and identifies the given ONU as a rogue ONU when the extinction ratio is outside of a specified range.
H04B 10/00 - Systèmes de transmission utilisant des ondes électromagnétiques autres que les ondes hertziennes, p. ex. les infrarouges, la lumière visible ou ultraviolette, ou utilisant des radiations corpusculaires, p. ex. les communications quantiques
H04B 10/079 - Dispositions pour la surveillance ou le test de systèmes de transmissionDispositions pour la mesure des défauts de systèmes de transmission utilisant un signal en service utilisant des mesures du signal de données
Methods, systems, and apparatus for automatically injecting symbol errors into a data stream prior to transmitting the data stream for timing recovery robustness are disclosed. In one aspect, a first telecommunications device determines that a data transition rate of a data stream exceeds a pre-specified rate. In response to the determination that the data transition rate exceeds the pre-specified rate, the first telecommunications device injects symbol errors into the data stream prior to transmitting the data stream to a second telecommunications device. The pre-specified rate is based on at least a nominal passband of the second telecommunications device.
A system for broadband communication over a local wireless communication channel includes a router configured to wirelessly access a wireless communication network, and a wireless broadband access device having wireless access to a wireless broadband communication network, the wireless broadband access device configured to wirelessly access the wireless communication network and configured to provide a bi-directional wireless communication channel to the router using the wireless communication network.
The physical layer of an optical line terminal (OLT) of an optical network is split across multiple fibers so that the OLT has a plurality of optical transceivers for respectively communicating across a plurality of optical fibers. Thus, each optical transceiver is in communication with a smaller number of optical network units (ONUs) relative to an embodiment for which a single optical transceiver is employed, thereby reducing the transmit power requirements of the optical network. Accordingly, less expensive optical components, such as lasers, can be used at the OLT and the ONUs. In addition, the split at the OLT is implemented digitally, and the digital components of the OLT are arranged such that various performance benefits are realized. As an example, the OLT may be configured such that data and/or overhead may be simultaneously transmitted in the upstream direction thereby increasing the upstream throughput and capacity of the optical network.
H04B 10/00 - Systèmes de transmission utilisant des ondes électromagnétiques autres que les ondes hertziennes, p. ex. les infrarouges, la lumière visible ou ultraviolette, ou utilisant des radiations corpusculaires, p. ex. les communications quantiques
H04L 12/28 - Réseaux de données à commutation caractérisés par la configuration des liaisons, p. ex. réseaux locaux [LAN Local Area Networks] ou réseaux étendus [WAN Wide Area Networks]
H04B 10/2575 - Radio sur fibre, p. ex. signal radio modulé en fréquence sur une porteuse optique
The present disclosure generally pertains to systems and methods for communicating data. In one exemplary embodiment, a system has a high-speed channel, such as an optical fiber, between a network facility, such as a central office (CO), and a first intermediate point between the network facility and a plurality of customer premises (CP). Digital communication links, such as DSL links, are used to carry data between the first intermediate point, such as a feeder distribution interface (FDI), and a second intermediate point, such as the Distribution Point (DP). Non-shared links may then carry the data from the second intermediate point to the CPs. The links between the two intermediate points are bonded to create a high-speed, shared data channel that permits peak data rates much greater than what would be achievable without bonding. In some embodiments, multicast data flows may be prioritized and transmitted across a set of connections to each of the intermediate points. In addition, it is possible to power components at the intermediate points from one or more of the CPs.
Methods, systems, and apparatus for Passive Optical Network (PON) wavelength bonding are disclosed. In one aspect, a first frame of data to a first optical network unit (ONU) is transmitted by an optical line terminal (OLT) over a first wavelength. While the first frame of data is being transmitted to the first ONU over the first wavelength, a first portion of a second frame of data to a second ONU is transmitted by the OLT over a second wavelength. After transmission of the first frame of data over the first wavelength has completed and while the first portion of the second frame of data is still being transmitted to the second ONU over the second wavelength, a second portion of the second frame of data to the second ONU is transmitted by the OLT over the first wavelength.
Optical telecommunications devices, systems, and methods. In some implementations, an optical networking unit (ONU) includes a multi-rate receiver having an operating bandwidth that is selected operationally based on physical layer characteristics of received signals and information received from a MAC. The ONU can also include an upstream laser circuit having an output impedance that differs from a characteristic impedance of a system in which the laser circuit is implemented. The ONU can also include a decision feedback equalizer (DFE) having at least one tap weight that is fixed to facilitate convergence of the DFE when signals received by the DFE would otherwise fail to meet characteristics required for DFE convergence.
H04B 10/69 - Dispositions électriques dans le récepteur
H04B 10/67 - Dispositions optiques dans le récepteur
H03F 3/04 - Amplificateurs comportant comme éléments d'amplification uniquement des tubes à décharge ou uniquement des dispositifs à semi-conducteurs comportant uniquement des dispositifs à semi-conducteurs
H04B 10/079 - Dispositions pour la surveillance ou le test de systèmes de transmissionDispositions pour la mesure des défauts de systèmes de transmission utilisant un signal en service utilisant des mesures du signal de données
A telecommunication system employs dynamic shaping based on current load conditions for at least one congestion point in order to achieve a fair allocation of network bandwidth. In one exemplary embodiment, shaper control logic communicates with virtual scheduler/shapers to learn current load conditions for at least one congestion point. Using such load information, the shaper control logic dynamically controls the shaper rates for the virtual scheduler/shapers so that packet flows for services of the same class passing through the congestion point achieve a desired (e.g., same or similar) performance regardless of which virtual scheduler/shaper is communicating each respective packet flow.
H04L 12/28 - Réseaux de données à commutation caractérisés par la configuration des liaisons, p. ex. réseaux locaux [LAN Local Area Networks] ou réseaux étendus [WAN Wide Area Networks]
Systems, methods, and apparatus for generating a reference current. A reference current source can include a current generator circuit; a first resistance circuit that has a positive temperature dependence; and a second resistance circuit that has a negative temperature dependence. The first resistance circuit and the second resistance circuit can be connected in parallel to the current generator circuit.
G05F 3/04 - Régulation de la tension ou du courant là où la tension ou le courant sont alternatifs
G05F 3/08 - Régulation de la tension ou du courant là où la tension ou le courant sont continus
G05F 3/16 - Régulation de la tension ou du courant là où la tension ou le courant sont continus utilisant des dispositifs non commandés à caractéristiques non linéaires consistant en des dispositifs à semi-conducteurs
G05F 3/20 - Régulation de la tension ou du courant là où la tension ou le courant sont continus utilisant des dispositifs non commandés à caractéristiques non linéaires consistant en des dispositifs à semi-conducteurs en utilisant des combinaisons diode-transistor
Methods, systems, and apparatus for Passive Optical Network (PON) wavelength bonding are disclosed. In one aspect, a first frame of data to a first optical network unit (ONU) is transmitted by an optical line terminal (OLT) over a first wavelength. While the first frame of data is being transmitted to the first ONU over the first wavelength, a first portion of a second frame of data to a second ONU is transmitted by the OLT over a second wavelength. After transmission of the first frame of data over the first wavelength has completed and while the first portion of the second frame of data is still being transmitted to the second ONU over the second wavelength, a second portion of the second frame of data to the second ONU is transmitted by the OLT over the first wavelength.
A coupling module can be used to communicate high speed signals between an optical transceiver and a processing module of an optical communication device, such as an optical line termination (OLT) or an optical network unit (ONU). The coupling module can adjust the DC offset voltage level of the signal output by the optical transceiver to the DC offset voltage level required by the processing module. In addition, the coupling module splits the output signal from the optical transceiver and passes the signal to both a high pass filter and a low pass filter that are connected in parallel. The outputs of the high pass filter and the low pass filter are then combined and provided to the processing module. The high pass filter and the low pass filter can be configured such that all frequencies of the signal from the optical transceiver are provided to the processing module.
G05F 1/46 - Régulation de la tension ou de l'intensité là où la variable effectivement régulée par le dispositif de réglage final est du type continu
H03H 11/04 - Réseaux sélectifs en fréquence à deux accès
H03H 11/12 - Réseaux sélectifs en fréquence à deux accès utilisant des amplificateurs avec contre-réaction
H04B 3/54 - Systèmes de transmission par lignes de réseau de distribution d'énergie
H04L 25/06 - Moyens pour rétablir le niveau à courant continuCorrection de distorsion de polarisation
G05F 3/18 - Régulation de la tension ou du courant là où la tension ou le courant sont continus utilisant des dispositifs non commandés à caractéristiques non linéaires consistant en des dispositifs à semi-conducteurs en utilisant des diodes Zener
G05F 5/00 - Systèmes de régulation de variables électriques par détection des écarts du signal électrique à l'entrée du système et par commande par ces écarts d'un dispositif intérieur au système pour obtenir un signal de sortie régulé
Methods and apparatus for communicating synchronous digital signals through an asynchronous domain are disclosed. In one aspect a method includes receiving a first synchronous digital signal of a first domain, wherein the first synchronous digital signal is generated by a first device for communication to a second device; encapsulating the first synchronous digital signal of the first domain into a first asynchronous packet of a second domain; and transmitting the first asynchronous packet to an asynchronous network of the second domain.
Systems and methods are disclosed that generally pertain to provisioning an optical network unit (ONU) by an optical line terminal (OLT) of a passive optical network (PON). An exemplary provisioning system includes a wireless reader incorporated into the ONU and a transponder unit attached to a fiber optic cable coupled to the ONU. The transponder unit includes a storage element in which is stored provisioning information, such a registration ID associated with the ONU. The wireless reader automatically obtains the provisioning information from the transponder when the fiber optic cable is coupled to the ONU and transmits the provisioning information to the OLT via the fiber optic cable as a part of a discovery procedure. The transmission of the provisioning information in this manner eliminates the need for a service technician to visit a customer premise and manually provide the provisioning information via a POTS port of the ONU.
Methods, systems, and apparatus for overlaying a passive optical network on a legacy optical access network are disclosed. In one aspect a system includes a legacy optical access network in a copper loop plant. The legacy optical access network provides access to customer premises. The system also includes a gigabit passive optical network (GPON) that is overlaid on the legacy optical access network. A fiber is shared by the GPON and the legacy optical access network. The GPON can provide a plurality of channels on the shared fiber at wavelengths that are separate and independent of wavelengths of the legacy optical access network.
The switch port at which traffic associated with a specified media access control (MAC) address originates is searched for in a local area network (LAN). One or more switches receive a broadcast discovery message on a LAN subnet. Each switch determines whether the MAC address identified by the discovery message is associated with one of its ports. If the switch determines that the MAC address is associated with one of its ports, then the switch determines whether that port defines an edge of a searchable space. If the switch determines that that port defines an edge of the searchable space, then the switch issues a response message identifying the switch and the port.
H04L 12/751 - Mise à jour ou découverte de la topologie
H04L 12/721 - Procédures de routage, p.ex. routage par le chemin le plus court, routage par la source, routage à état de lien ou routage par vecteur de distance
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for managing configurations of telecommunications nodes. In one aspect, a system includes a file server; a subtending device coupled to the file server, and a telecommunications node coupled to the subtending device. The subtending device can include one or more line cards that connect one or more telecommunications nodes to a network. The telecommunications device receives, from the file server and based on provisioning information provided by the subtending device, a first configuration file and replaces a wildcard value in the first filename with a unit-specific identifier. A unit-specific configuration file is requested from the file server, and used to configure the node. A change is detected to the configuration, and an updated unit-specific configuration file is posted to the file server using the first filename.
G06F 15/173 - Communication entre processeurs utilisant un réseau d'interconnexion, p. ex. matriciel, de réarrangement, pyramidal, en étoile ou ramifié
H04L 12/24 - Dispositions pour la maintenance ou la gestion
G06F 17/30 - Recherche documentaire; Structures de bases de données à cet effet
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for managing configurations of telecommunications nodes. In one aspect, a system includes a file server; a subtending device coupled to the file server, and a telecommunications node coupled to the subtending device. The subtending device can include one or more line cards that connect one or more telecommunications nodes to a network. The telecommunications device receives, from the file server and based on provisioning information provided by the subtending device, an auto-config file for the telecommunications node and parses the auto-config file to identify a first filename of a unit-specific configuration file. A wildcard value in the first filename is replaced with a unit-specific identifier, and a unit-specific configuration file is requested from the file server. One or more parameters of the telecommunications node are configured based on a response to the request.
G06F 15/173 - Communication entre processeurs utilisant un réseau d'interconnexion, p. ex. matriciel, de réarrangement, pyramidal, en étoile ou ramifié
H04L 12/24 - Dispositions pour la maintenance ou la gestion
Systems, and apparatus for adding reflection based pre-emphasis to a laser driver. In one aspect, a device includes a load (e.g. a laser) having a load impedance, a first end of a transmission line connected to the load, and a reflective impedance element connected to a second end of the transmission line. The reflective impedance element has a given impedance value that differs from the transmission line's characteristic impedance, and the characteristic impedance differs from the load impedance. This mismatch causes reflections between the reflective impedance element and the load. The reflections between the reflective impedance element and the load combine with an incident signal at the load to create a target signal having a target spectral shape.
H01S 3/00 - Lasers, c.-à-d. dispositifs utilisant l'émission stimulée de rayonnement électromagnétique dans la gamme de l’infrarouge, du visible ou de l’ultraviolet
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for managing device firmware. In one aspect, a system includes a file server; a subtending device coupled to the file server, and a telecommunications node coupled to the subtending device. The subtending device can include one or more line cards that connect one or more telecommunications nodes to a network. The telecommunications node receives, from the subtending device, a group name and replaces a wildcard in a firmware filename to derive a first network path of firmware files. The telecommunications node installs the firmware files and subsequently receives an updated group name. The telecommunications node replaces the wildcard with the updated group name to derive an updated path, and obtains different firmware files from the updated path. The firmware installed on the telecommunications node is managed based on the first firmware and the different firmware.
Assemblies include a micronode having an optical connector, a coaxial connector port and a housing that includes a plurality of mounting bores. The assembly further includes a filter having a housing that underlies the micronode housing, the filter housing including a plurality of mounting bores, the mounting bores of the filter housing aligning with the mounting bores of the micronode housing. The filter further includes a first optical connector configured to receive an optical drop cable, a second optical connector configured to receive an optical cable and an optical pigtail cord that is connected to the optical connector of the micronode.
H04Q 11/00 - Dispositifs de sélection pour systèmes multiplex
G02B 6/44 - Structures mécaniques pour assurer la résistance à la traction et la protection externe des fibres, p. ex. câbles de transmission optique
H04J 14/02 - Systèmes multiplex à division de longueur d'onde
H04B 10/2575 - Radio sur fibre, p. ex. signal radio modulé en fréquence sur une porteuse optique
G02B 6/293 - Moyens de couplage optique ayant des bus de données, c.-à-d. plusieurs guides d'ondes interconnectés et assurant un système bidirectionnel par nature en mélangeant et divisant les signaux avec des moyens de sélection de la longueur d'onde
G02B 6/42 - Couplage de guides de lumière avec des éléments opto-électroniques
Methods, systems, and apparatus for selecting frame loss measures are disclosed. In one aspect, a Synthetic Loss Measurement (SLM) report for a given interval for a network managed entity that includes at least two network nodes is received. A Loss Measurement Message (LMM) report for a given interval for the network managed entity is received. For the given interval and from the SLM and LMM reports, a reporting measurement for the network managed entity is selected based, at least in part, on a frame rate of data transmitted over the network managed entity during the given interval or an occurrence of a specified network event during the given interval. Frame loss information for the given interval for the network managed entity based on the selected reporting measurement is reported.
Methods, systems, and apparatus for processing stream messages are disclosed. In one aspect, a downstream message formatted according to an asymmetric communication protocol is received over a downstream Virtual Local Area Network (VLAN). An upstream message is generated in response to receiving the downstream message. The downstream message is transmitted on the downstream VLAN. The upstream message is transmitted on an upstream VLAN that is different than the downstream multicast VLAN.
Methods, systems, and apparatus for providing content in a multicast stream are disclosed. In one aspect, analytical information of a plurality of individual data sessions between user devices and a content server is received. The analytical information of each of the plurality of individual data sessions is based on a packet inspection analysis of data transmitted in the respective individual data sessions. A same set of content being delivered to at least a portion of the user devices based on the analytical information is determined. In response to the determination, a multicast stream condition is determined to be met based on at least one performance metric of a network over which the same set of content is being delivered. In response to determining that the multicast stream condition has been met, a multicast stream that provides the content in a looping stream is initiated.
G06F 15/16 - Associations de plusieurs calculateurs numériques comportant chacun au moins une unité arithmétique, une unité programme et un registre, p. ex. pour le traitement simultané de plusieurs programmes
H04L 29/06 - Commande de la communication; Traitement de la communication caractérisés par un protocole
H04L 12/927 - Allocation de ressources en fonction du type de trafic, qualité de service ou priorité
H04L 12/24 - Dispositions pour la maintenance ou la gestion
H04L 29/12 - Dispositions, appareils, circuits ou systèmes non couverts par un seul des groupes caractérisés par le terminal de données
A combination of algorithms and circuits can control the connectivity of a drop connection to either a telephone service or a high-speed data service at a distribution point. The algorithms and circuits can operate in the absence of a conventional power supply at the distribution point. The circuits can connect the drop connection to the high-speed data service in response to the receipt of an activation signal sent by equipment at the customer premises. After the connection to the high-speed data service is complete, the customer premises equipment can be used to apply back power to the components of the distribution point. If the customer premises equipment stops providing back power to the components of the distribution point, the circuits can connect the drop connection to the telephone service.
A network element is provided comprising at least one switch, which is configurable to connect a subscriber line to a first service line or to a second service line, wherein the connection of the subscriber line to the first service line or to the second service line is configured via a signal conveyed across the second service line. Also, a system is suggested comprising two or more switches, wherein each switch is configurable to connect a subscriber line to a first service line or to a second service line, a control circuitry for controlling the two or more switches, an MSAN comprising two or more second service lines, wherein a dedicated service line of an MSAN is used for controlling the control circuitry. Further, methods for operating the network element or the system are suggested.
H04L 12/28 - Réseaux de données à commutation caractérisés par la configuration des liaisons, p. ex. réseaux locaux [LAN Local Area Networks] ou réseaux étendus [WAN Wide Area Networks]
H04M 3/00 - Centraux automatiques ou semi-automatiques
H04Q 3/60 - Dispositions produisant une connexion entre un central principal et une sous-station ou satellite pour connecter des satellites ou concentrateurs qui relient une ou plusieurs lignes de central à un groupe de lignes locales
H04M 11/06 - Transmission simultanée téléphonique et de données, p. ex. transmission télégraphique sur les mêmes conducteurs
Methods, systems, and apparatus for preserving timing domains of different communications types of signals in a telecommunications network are disclosed. In one aspect a network element (NE) includes a receiver configured to receive communications signals of two different communications types. The NE can include a timing analyzer configured to obtain a local reference clock (LRC), detect two different received reference clocks (RRCs) corresponding to the two different communications types, and for each received communications signal, determine a quantized value (QV) based on a difference between the LRC and the RRC. The NE can include a timing generator configured to generate, for the received communications signal, a transmit reference clock (TRC) that is referenced to, but different from, each of the LRC and the QV. The NE can include a transmitter configured to output an output signal based on the received communications signal and the TRC for the received communications signal.
A wireless network switch device includes wired-network switch circuitry and wireless local-area network (WLAN) radio devices integrated together within a common housing. WLAN antennas that are distributed about the WLAN coverage area can be coupled to antenna ports on the device housing. Channels are assigned to the WLAN radio devices and corresponding antennas in a manner that promotes minimization of signal interference between adjacent WLAN radio devices in the housing as well between adjacent antennas.
A convection-cooled electronic system includes an electronic device and a stand. The electronic device has air intake openings in a lower housing portion and air exhaust openings in an upper housing portion. The stand has air intake openings. The stand has a periphery, a flat base, and a slot extending across the widest portion of the stand. The slot has a shape configured to receive the lower portion of the device housing. Heat emitted by electronic components within the device housing creates airflow by convection, which causes air to be drawn into the stand through the stand air intake openings and communicated into the device air intake openings. The air is heated as it passes through the device housing, and the heated air exits the device housing through the air exhaust openings.
Systems and methods for wireless management access to a telecommunication device are provided. A portable device, such as a tablet, smartphone, etc., can be used to access a network device, such as a telecommunication device, by accessing a wireless access module of the telecommunication device using any desired wireless technology. When the portable device is in proximity to the telecommunication device the presence of the portable device may be detected, causing an attempted wireless communication between the portable device and the wireless access module. The portable device may provide various security information to the wireless access module that may be verified before access to the telecommunication device is granted. If the portable device is verified it may be authorized for wireless communications with the telecommunication device, including receiving an identifier for the telecommunication device.
brevets
