Patent application number | Description | Published |
20080270673 | Edge Router and Method for Dynamic Learning of an End Device MAC Address - An edge router (Broadband Remote Access Server) and a method are described herein that obtain a Media Access Control (MAC) address of an end device (consumer premises equipment). Once, the edge router obtains the MAC address of the end device then it can use Ethernet Operation, Administration and Maintenance (OAM) tools to troubleshoot the end device. | 10-30-2008 |
20080279107 | Diagnostic Tool and Method for Retrieving Subscriber Information from Nodes Located Within a Layer 2 Aggregation Network - An in-band diagnostic tool and method are described herein that are capable of retrieving subscriber information from one or more nodes located within a layer 2 aggregation network. In one application, the diagnostic tool and method can be used by a customer service representative to retrieve subscriber information (e.g., user privileges, current bandwidth usage, available bandwidth) related to a customer that receives television, Internet etc. from an Internet Protocol Television (IPTV) network (which is an application-specific layer 2 aggregation network). | 11-13-2008 |
20090094651 | Ethernet-Level Measurement of Multicast Group Delay Performance - A network management system and method are described herein that can measure on-demand the D/DV (Delay/Delay Variation) in a Broadcast Television (BTV) multicast stream for a group of listeners that are associated with an Internet Protocol Television (IPTV) network. | 04-09-2009 |
20090132696 | Facilitating DHCP diagnostics in telecommunication networks - A computer-implemented method for facilitating DHCP diagnostic functionality comprises a plurality of operation. An operation is performed for identifying misconfigurations to a DHCP option configuration of a DHCP agent between a DHCP server and a client of the DHCP server. An operation is performed for confirming proper address concentration configuration with respect to the DHCP agent. An operation is performed for snooping on address assignments from the DHCP server to the client of the DHCP server to determine unauthorized ones of the address assignments. | 05-21-2009 |
20090154478 | Scalable Ethernet OAM Connectivity Check in an Access Network - An access node (e.g., Digital Subscriber Line Access Multiplexer) and a method are described herein that proactively monitor the connectivity of one or more end devices (e.g., residential gateways). In one embodiment, the access node performs the following: (a) receives continuity check messages from at least one of the end devices; (b) polls the received continuity check messages to ascertain the connectivity of each end device; and (c) if at least one continuity check message is detected as missing from one of the end devices during the polling step, then an alarm message is sent indicating a loss of connectivity to the one end device. Thereafter, an edge router (e.g., Broadband Network Gateway) would receive the alarm message and know there is no longer a connection to the one end device. | 06-18-2009 |
20090158388 | Ethernet Connectivity Fault Management With User Verification Option - An access node (e.g., DSLAM, OLT/ONT) is described herein that implements a trust verification method comprising the steps of: (a) filtering an up-stream message initiated by a non-trusted device (e.g., CPE); (b) intercepting the filtered up-stream message if the filtered up-stream message is a connectivity fault management message (e.g., LB message, LBR message, CC message); (c) inserting a trusted identification into the intercepted up-stream message; and (d) outputting the intercepted up-stream message with the inserted trusted identification. Thereafter, a trusted device (e.g., BRAS) receives and analyzes the outputted up-stream message with the inserted trusted identification message to ascertain a trustworthiness of the non-trusted device (e.g., CPE). Several different ways that an access network (e.g., IPTV network) can implement the trust verification method are also described herein. | 06-18-2009 |
20090161566 | Network Management System and Method for Performing Scalable Loss Measurements within an Access Network - A network management system and a method are described herein that determine if one or more devices (e.g., consumer premises equipment(s)) are experiencing an unacceptable packet loss for downstream multicast traffic in an access network. In one embodiment, the network management system performs the following operations: (1) cause a trigger probe to be sent to the one or more devices, where each trigger probe contains information which causes the corresponding device to start a packet loss measurement; and (2) receive an unacceptable loss measurement message from one of the devices if that one device experienced packet losses over a certain period of time that exceeded a predetermined threshold which would be an indication that the one end device is experiencing an unacceptable packet loss. | 06-25-2009 |
20090254952 | IPTV Network with D-Server Controller, VoD-Server Controller and Policy Server that Implement Diagnostic Tools - A D-server controller, a VoD-server controller and a policy server are described herein which implement diagnostic tools that proactively detect and prevent potential problems with different components and services in an Internet Protocol Television (IPTV) network. | 10-08-2009 |
20090328119 | Packet Recovery Server Based Triggering Mechanism for IPTV Diagnostics - A monitoring system and method are described herein that obtain retry request information from packet recovery server(s) and based at least in part on the obtained retry request information determine whether or not to launch probes to monitor specific network element(s) within an Internet Protocol Television (IPTV) network to diagnose a problem without having to monitor everyone of the network elements all of the time. | 12-31-2009 |
20100118711 | Tools that facilitate diagnostics for mobile backhaul networks - A diagnostic tool is provided for calculating the availability of multi-segment pseudowires within an internet protocol (IP)-based mobile backhaul network. A control message is transmitted from an originating node towards a destination node within the IP-based mobile backhaul network over a primary multi-segment pseudowire and a secondary multi-segment pseudowire. From the response messages received from intermediate nodes positioned between the network node and the destination node along the primary multi-segment pseudowire and the secondary multi-segment psuedowire, the originating node determines the identities of each of the intermediate nodes, and calculates a respective individual availability of the primary multi-segment pseudowire and the secondary multi-segment pseudowire. | 05-13-2010 |
20100165831 | Load balancing and fault protection in aggregation networks - A system, device, and method for aggregating traffic in a network, such as for wireless backhaul traffic in a cellular communication system. UE device traffic is sent to and from an access bridge, which is one node in an access network formed into a ring topology, and from the access bridge to a core bridge in communication with a core network of the communication system. According to a preferred embodiment, the access bridge and the core bridge each have a LAG component configured according to IEEE 802.1D and IEEE 802.3-2005, and a ring component configured according to IEEE 802.1Q or 802.1AD. In operation, this LAG component load balances communication traffic coming into the bridge node onto one of two VLANs formed of portions of the access network ring. In the event of a fault condition affecting one of the two VLANs, the fault VLAN is removed from the aggregation scheme until the fault condition is alleviated. | 07-01-2010 |
20100172245 | Monitoring connectivity in ring networks - A system, method, and device for monitoring the connectivity of a network that has been configured in a ring topology, such as an Ethernet ring network. The ring network includes a plurality of nodes, each with first port and a second port for forwarding CC messages to respective neighbor nodes, and an MEP for forming and processing the CC messages. Of the plurality of network nodes, neighbor nodes are selected as CC forwarding nodes and, after a database on each node has been configured, the selected nodes begin sending CC messages to each other via the ring network, beginning with transmission to a non-selected node. If a selected node fails to receive an expected CC message, it transmits a fault notification and ceases sending CC messages. The network then reselects CC message forwarding nodes, which begin forwarding CC messages until another fault is detected or the network is otherwise reconfigured. | 07-08-2010 |
20100172453 | High availability clock synchronization and distribution for mobile backhaul networks - Fully redundant clock systems are provided on network nodes coupled by redundant multisegment psuedowires (MSPWs) within an internet-protocol (IP)-based mobile backhaul network. The primary clock system includes a primary master clock on a first node and a primary slave clock on a second node coupled via a primary MSPW, while the secondary clock system includes a secondary master clock on the first node and a secondary slave clock on the second node coupled via a secondary MSPW. The primary and secondary slave clocks synchronize with their respective primary and secondary master clocks via their respective MSPWs. A clock controller maintains the secondary clock system in a hot-stand-by mode, and upon determining that a switch-over is needed, automatically switches from the primary clock system to the secondary clock system. | 07-08-2010 |
20110037601 | DISTRIBUTED SLEEPING CELL DETECTION - The present invention provides a method that includes receiving, at a server, one or more alarms from a first cell in a plurality of cells. The alarm(s) indicate that the first cell has detected a candidate sleeping cell in the plurality of cells based on an activity and/or a load on a communication link between the first cell and the candidate sleeping cell. The method also includes determining, at the server, whether the candidate sleeping cell is a sleeping cell using the alarm. | 02-17-2011 |
20110116363 | ALARM INDICATION AND SUPPRESSION (AIS) MECHANISM IN AN ETHERNET OAM NETWORK - A system and method for propagating fault information in an Ethernet OAM network having multiple levels of OAM domains. An Alarm Indication and Suppression (AIS) frame is generated by a Maintenance Intermediate Point (MIP) node upon detecting a fault condition in a first OAM domain, which is transmitted to one or more Maintenance End Points (MEPs) of the first OAM domain. Upon receiving the AIS frames, the MEP nodes are operable generate another AIS frame for propagating to an adjacent higher level second OAM domain. Responsive to the AIS frame from the lower level first OAM domain, any alarms caused in the second OAM domain due to the fault condition in the first OAM domain are suppressed. | 05-19-2011 |
20110252123 | Policy And Charging Rules Function In An Extended Self Optimizing Network - A policy and charging rules function (PCRF) includes an input port, a processor, and an output port. The input port receives near-real-time network state data. The processor makes optimization decisions based upon the near-real-time network state data. The processor also produces policy enforcement messages based upon the optimization decisions. The PCRF transmits the policy enforcement message via the output port. | 10-13-2011 |
20110252477 | Dynamic Load Balancing In An Extended Self Optimizing Network - A method for performing load balancing in a wireless network. Operating conditions are determined in the wireless network. Network policies are dynamically adjusted based upon the operating conditions. Users are offloaded from an overloaded site to another site based upon the operating conditions. | 10-13-2011 |
20120039175 | ENABLING A DISTRIBUTED POLICY ARCHITECTURE WITH EXTENDED SON (EXTENDED SELF ORGANIZING NETWORKS) - When performing load balancing in a wireless extended self-organizing network (extended SON), network health status is monitored by collecting network measurement data and identifying network nodes that require policy adjustment. Based on the network measurement data, network and/or user policies are automatically adjusted and policy updates are disseminated by a policy and charging rule function module to a packet gateway (PGW) as well as to one or more non-PGW network nodes (e.g., base stations, mobility management entity (MME) nodes, radio network controller (RNC) nodes, and the like). The automated policy updates are locally enforced at the nodes that receive the updates, rather than solely at the PGW node. | 02-16-2012 |
20120302244 | Influencing Load Balancing Between Radio Access Technologies - One embodiment of the method includes transferring, by a network element, a user equipment to a different one of the plurality of RATs based on a load balancing determination and a profile for the user equipment. The profile indicates a preference for each of the plurality of RATs, and at least one of the preferences is based on at least one attribute of the user equipment monitored over a period of time. | 11-29-2012 |
20120320766 | METHOD OF COORDINATING FAULT DETECTION RESPONSES BY ACCESS NODES OF A NETWORK - The present invention provides a method of coordinating access nodes when a sleeping cell is detected. The method may include modifying a coverage area of an access node to compensate for lost coverage in a sleeping cell detected by the access node. The access node implements resource allocation algorithms and a cell identification algorithm. The method may also include instructing the resource allocation algorithms and/or the cell identification algorithm to perform a predetermined action concurrently with the modification. | 12-20-2012 |
20130003548 | Method For Improved Load Balancing In Communication Systems - Various methods are provided to address the need for improved load balancing. In a one method, a packet loss is determined ( | 01-03-2013 |
20130044600 | METHOD AND APPARATUS FOR PROVIDING INCREASED SMALL CELL RESOURCE UTILIZATION - A method of determining a bias parameter for a heterogeneous network including a small cell, a macro cell, and one or more user equipment (UEs), the small cell being underlaid with respect to the macro cell, includes determining, at a base station of the small cell, a loading state of the macro cell; and setting, at the base station, the bias parameter based on the determined loading state. A method of determining a cell border window (CBW) for the small cell, the small cell being underlaid with respect to the macro cell, the small cell having a plurality of attached UEs which are divided into inner cell UEs and border cell UEs, includes determining, at the base station, a difference value based on utilization values of the inner cell UEs and the border cell UEs; and adjusting the CBW based on the difference value and a threshold value. | 02-21-2013 |
20130045749 | METHOD AND APPARATUS FOR DETERMINING HANDOVER PARAMETERS IN WIRELESS OVERLAY NETWORKS - The present application describes embodiments of a method and apparatus for determining handover parameters in a wireless overlay network. One embodiment includes modifying a bias value used to determine when to handover user equipment between a macrocell and a femtocell that overlays the macrocell. The bias value is modified in response to a change in one or more handover frequencies associated with the user equipment. Handovers of user equipment are triggered when a sum of the bias value and a measured value of the femtocell signal strength exceed a measured value of the macrocell signal strength. | 02-21-2013 |
20130051332 | METHOD AND APPARATUS FOR MODIFYING CALL ADMISSION CONTROL THRESHOLDS - Embodiments of the claimed subject matter provide a method and apparatus for modifying call admission control thresholds. One embodiment of a method includes modifying one or more call admission control thresholds provided to base stations by a radio access network in response to a mismatch between a wireless access capacity of the base stations and a backhaul capacity between the base stations and the radio access network. | 02-28-2013 |
20130064107 | ADJUSTMENT OF RADIO RESOURCE CONTROL STATE TIMERS IN A RADIO ACCESS NETWORK - Systems and methods are provided for adjusting Radio Resource Control (RRC) timers in a Radio Access Network (RAN). The system manages radio communications between a mobile device and a base station, and further transitions the mobile device between Radio Resource Control (RRC) states based upon application-layer data traffic for the mobile device and a timer value. Additionally, the system determines an overhead load based on network-layer signaling events associated with at least one RRC transition for the mobile device, and determines a bearer load based on the application-layer data traffic for the mobile device. Based upon the overhead load and the bearer load, the system adjusts the timer value. | 03-14-2013 |
20130189996 | METHOD AND APPARATUS FOR DYNAMICALLY MODIFYING CELL RESELECTION AND/OR HANDOVER PARAMETERS - Embodiments of the claimed subject matter provide embodiments of a method and apparatus for dynamically modifying cell reselection parameters and/or handover parameters. One embodiment of the method includes providing a request for a cell reselection parameter or handover parameter in response to a small cell determining that a number of cell reselections or a number of handovers between the small cell and at least one macrocell exceeds at least one threshold. In this embodiment, the cell reselection parameter or handover parameter is stored in the small cell. | 07-25-2013 |
20130194937 | METHOD AND APPARATUS FOR PROVIDING INTELLIGENT CODEC RATE ADAPTATION FOR WIRELESS USERS - The method includes receiving, at a network element, a media data packet sent from a first source user equipment (UE) towards a first destination UE; detecting, at the network element, congestion in at least one of a downlink channel between the network element and the first destination UE, and an uplink channel between the first source UE and the network element; identifying a second source UE that is transmitting first data to a second destination UE through the network element and has a subscriber priority level lower than the first source UE if the detecting detects congestion; sending a congestion indication that causes the second source UE to lower a rate at which the second source UE transmits the first data through the network element to the second destination UE if the detecting detects congestion; and sending the media data packet from the network element to the first destination UE. | 08-01-2013 |
20130336110 | APPARATUS AND METHOD FOR SUPPORTING IDLE MODE LOAD BALANCING - An idle mode load balancing capability enables balancing of idle mode wireless devices across wireless carriers in order to ensure that the possibility of congestion on any given wireless carrier is reduced or even minimized when idle mode wireless devices become active. The idle mode load balancing may be performed for wireless carriers by determining relative numbers of idle mode wireless devices on the wireless carriers and performing idle mode load balancing for the wireless carriers based on the relative numbers of idle mode wireless devices on the wireless carriers. The relative number of idle mode wireless devices on a wireless carrier may be determined based on a change in load on the wireless carrier during the observation period, which may be determined based on an observed change in load on the wireless carrier and a load correction associated with session terminations on the wireless carrier. | 12-19-2013 |
20140169160 | METHODS FOR CONGESTION CONTROL IN WIRELESS NETWORKS - A centralized self optimizing network and policy server is configured to control congestion within at least one cell in a wireless network by coordinating application of radio frequency congestion control mechanisms affecting all users within the cell and application of core network congestion control mechanisms associated with individual users within the cell. | 06-19-2014 |
20140181257 | METHODS AND SYSTEMS FOR LOADING CONTENT IN A NETWORK - At least one example embodiment discloses a method of loading content for a user in a network including a plurality of base stations. The method includes obtaining a profile of the user, the profile identifying a history of the user in the network including previous content requested by the user, determining future content to load onto at least a first of the plurality of base stations based on the profile, and instructing a content server to load the future content onto the first base station before receiving a request from the user for the future content. | 06-26-2014 |
20140219106 | ALARM INDICATION AND SUPPRESSION (AIS) MECHANISM IN AN ETHERNET OAM NETWORK - A system and method for propagating fault information in an Ethernet OAM network having multiple levels of OAM domains. An Alarm Indication and Suppression (AIS) frame is generated by a Maintenance Intermediate Point (MIP) node upon detecting a fault condition in a first OAM domain, which is transmitted to one or more Maintenance End Points (MEPs) of the first OAM domain. Upon receiving the AIS frames, the MEP nodes are operable generate another AIS frame for propagating to an adjacent higher level second OAM domain. Responsive to the AIS frame from the lower level first OAM domain, any alarms caused in the second OAM domain due to the fault condition in the first OAM domain are suppressed. | 08-07-2014 |