Telefonaktiebolaget Lm Ericsson (publ)

Edwin Tse

Robert Petersen

John Power

Nicolas Gosselin

Per-Daniel Stålnacke

Anna Pucar Rimhagen

András Rácz

Oscar Zee

András Veres

Mats Buchmayer

David McAleer

Brendan Hassett

Andre Godin

Fergus Kelledy

David O'Flanagan

Power John

David Mcaleer

Per-Daniel STÅLNACKE

In a network Performance Measurement (PM) model, network equipment () maintains () a ManagedElement object. The ManagedElement object contains one or more ManagedFunction objects which perform and report measurements. Each ManagedFunction object has one or more Measurement objects () that specifies a measurement, and lists a reporting period. The ManagedElement object contains a PMControl object (), which specifies the reporting mode and includes an administrative state attribute of the ManagedElement object that is controlled by the network management system (). The ManagedElement object controls () an operational state attribute of the PMControl object based on resources to perform the measurement and access to the relevant reporting mechanism (). When both states of the PMControl object are set to a functional value (), the ManagedFunction objects perform () and report () the results of measurement specified in associated Measurement objects.

Management model for network equipment performance measurements

There is provided a method for network management performed by a first entity (), which is configured to manage network slices in a network. The method is performed in response to a first request to set up a first network slice. The method comprises identifying () one or more network nodes in the network and/or one or more second network slices to support the first network slice. For each identified network node, an update to an attribute of the identified network node is initiated () to add a unique identifier of the first network slice to the attribute of the identified network node. For each identified second network slice, an update to an attribute of the identified second network slice is initiated () to add the unique identifier of the first network slice to the attribute of the identified second network slice.

Network management

In a network Fault Management (FM) model, network equipment () maintains a ManagedElement object (). The ManagedElement object contains one or more ManagedFunction objects () with each ManagedFunction object () comprising an FMControl object specifying the capabilities of the ManagedFunction objects to produce, report, and log fault reports, a Fault Type List object () listing the various types of faults the ManagedFunction object can detect, report, and log, and a currentFaultList object () listing the current faults and associated fault information. The FMControl object further includes several attributes that are set by a Management System () to control the reading of fault reports as well as the sending of the fault reports to other interested network nodes ().

Management model for node fault management

There is provided a method for network management. Transmission of a request for performance of a management task on the network is initiated towards a second entity (), which is configured to manage network slices of the network. The request comprises information identifying a first network slice () of the network and a first programming construct executable to cause the second entity () to identify one or more second network slices of the network that are supporting the first network slice () and/or one or more first network nodes () of the network supporting the first network slice (). The request comprises a second programming construct executable to cause the second entity () to select the first network slice (), one or more identified second network slices, and/or one or more identified first network nodes (), on which to perform the management task.

Methods and apparatus for correlating event notifications between agents in a management network are provided. An agent constructs a network notification in response to receiving an event notification. If the received event notification is associated with a prior notification already received and stored by the agent, a correlation attribute is added to the constructed network notification. If the received notification matches a peer agent notification category that another agent in the management network is interested in receiving, the constructed network notification is sent to the other agent.

Method and management agent for event notifications correlation

According to the invention a core network management device () in a core network section (CN) of the wireless network (WN) receives a request for a tracing regarding a wireless terminal (). The request includes an address of a destination device () that is to receive trace log data or data enabling the locating of the address. The core network management device () then automatically orders, based on the request, network elements () of an access network section (AN) of the wireless network (WN) to perform tracing regarding the wireless terminal () and ensures that the trace log data is sent to the destination trace log data handling device (). The request with the address may be sent from an access network management device () in the access network section (AN).

Ordering tracing of wireless terminal activities

A system and method for detecting, reporting and collecting information associated with network events is provided. A network element, such as an Event Reporter, detects an event that requires reporting to a manager of the network. The Event Reporter can determine if it is the lead responsible for reporting the event and forward it directly to the manager. Alternatively, it can forward the event report to a peer entity that has been designated as the lead. If the Event Reporter is the lead for the event, it can determine that it should relinquish the lead responsibility and initiate a hand-over of the lead role to a peer.

Self organizing network event reporting

A technique for determining a correlation among events occurring in one or more network elements is provided. The correlation among the events results from a propagation of a root event through communication entities of the one or more network elements. In a method implementation the technique comprises the step of receiving a plurality of event messages from one or more network elements, wherein an event message pertaining to an event reported by a particular network element signals an occurrence context, the occurrence context comprising one or more context identifiers describing an internal communication state of the communication entity in which the event occurred at the time when the event occurred. In another step, a set of correlated events linked by identical context identifiers is determined. Based on the set of correlated events, the root event may be identified.

Technique for determining correlated events in a communication system

Systems and methods for determining a version of a standard publication that is supported by a network element are provided. Version map information is requested and received from an external node in a managed network, including publication identifiers for at least one of the network elements. Each network element identified in the version map has an associated publication version and an indication of if the publication can be applicable to its directly or indirectly inferior nodes in the hierarchical instance tree. If a particular network element does not have a corresponding publication identifier in the received version map information, it can be determined if the network element can use the publication identifiers of a superior network element in the hierarchy.

Managed object version identification

The present invention relates to a method and an arrangement for distributing fault information among hierarchical management nodes. Specifically, the method involves distributing fault information from a lower level network management node to a higher level network management node in a network management architecture comprising modules logically representing network nodes and network links under management. The higher level network management node subscribes to at least some detailed fault information. And, a notification comprising a summary of fault information sent by the lower level network management node is received by the higher level network management node. Then, the higher level network management node retrieves the subscribed detailed fault information from said received notification.

Method and system to distribute fault information in a large scale communication network system comprising hierarchical management nodes

A system and method for detecting cooperation or conflict between actors in a network made up of self-organizing sub-networks examines parameters such as performance indicators and configuration parameters to determine whether or not different actors are adjusting configuration parameters in a way that is cooperative or conflicting. When a performance indicator is observed to be outside of its expected range, an acceptable convergence range can be defined to give the actors time to adjust and return the performance indicator to its expected range of values. When a performance indicator is detected to be non-convergent, the monitor can alert an operator, or another node, so that appropriate actions can be taken.

Method and system for conflict detection in self organization network (SON) functions

The present invention relates to a method and an arrangement in a communication system in which a network management architecture comprises modules representing a virtual reality of network nodes () and network links under management. Organization of said modules and information contained in said modules are based on a pre-determined network management schema, whereby said network nodes () and said network links are managed by accessing and manipulating said modules. The network management schema is modified by reducing the amount of information in said modules. Then, the modified network management schema is used for managing said communication network system and thereby facilitating communication network system management.

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Montreal, Canada

Edwin Tse