Operation and maintenance Dibuz Sarolta
Network management system › Network management layer – Complete NW view – Multi technology – Multi vendor › Sub-NW management layer – Responsible for one subnetwork – Single vendor or technology › Element management layer – Managing the network element (NE) only – Embedded into to NE Ericsson Internal | 2012 -04 -25 | Page 2
OSS Overview The OSS portfolio Service Level Manager OSS-RC Service Network Config Manager Core Network Config Managers Fault Manager Radio Network Config Managers Other technologies Other vendors’ networks Performance Manager Network Navigator Multimedia Services MMS, SMS, Prepaid. . . Script Manager PM Mediation Radio Network Optimizers Common applications Radio Access LTE SW/HW Manager GSM WCDMA IMS IMT, we. Share, PTT Core Mobile Packet Mobile Circuit Wireline* Other technologies Other vendors’ networks * Including narrowband access Ericsson Internal | 2012 -04 -25 | Page 3 Open Interfaces / IRP Element & Domain Mgmt Ericsson Network IQ OSS Navigator Network & Service Mgmt (multi vendor& multi technology)
O&M capabilities FCAPSI › Fault management › Configuration management › Accounting › Performance management › Security › Inventory management Ericsson Internal | 2012 -04 -25 | Page 4
Fault management › Detecting, diagnosing & correcting of faults in the NW › Alarm handling › Diagnostic tools to isolate faults Ericsson Internal | 2012 -04 -25 | Page 5
NMS FM overview (e. g. Te. MIP, Netcool) FM › What does FM do? – collect – pre-process – store – alert – view and – forward alarms FMX GUI GUI Alarm Agents Kernel Alarm Managers Backbone Ericsson Internal | 2012 -04 -25 | Page 6
FM Alarm Flow Overview Main GUIs Alarm Agents CORBA Alarm IRP Agent 7 8 EFM Kernel Distribution Server 5 6 FM Kernel FMX Runtime Alarm List Viewer Alarm Status Matrix BNSI Alarm Agent Fault Manager e. Xpert Alarm Status Viewer 3 4 Alarm List FMX Development 2 Alarm Managers AXE Alarm Manager Text Alarm Manager SNMP Alarm Manager HP BNSI Alarm Manager 1 Ericsson Internal | 2012 -04 -25 | Page 7 SNMP Alarm Manager SMT Corba Alarm IRP Manager Alarm Log
Configuration management › CM tools provide the operator with – An efficient way of configuring, verifying and viewing large amount of parameters that are defined in the network – Gathering and storing configuration information from the NW – Tracking changes that are made to the configuration Ericsson Internal | 2012 -04 -25 | Page 8
Configuration Management Replanning configuration actions: • Planned area: model of the actual NW • Fallback area: store it • Planned area • Consistency check • Update with planned area Ericsson Internal | 2012 -04 -25 | Page 9
Accounting › Collection and processing of accounting data › Maintaining billing policy › Updating tariff information Ericsson Internal | 2012 -04 -25 | Page 10
Performance management › Determines the efficiency and performance trends of the NW – Throughput – Utilization – Error rates – Response times › Metrics – Per port – End user experience › Real-time or off-line tools Ericsson Internal | 2012 -04 -25 | Page 11
Performance management flow › Counters – ROP (Recording Output Period) 15 minutes – Statistics (KPIs and counters) for trend analysis – 3 GPP defines KPIs › Events – Detailed troubleshooting – Used in traces › Cell traces › UE traces – Measurements -> performance alarms › Definition – – Targets Measurements Report layout Alarm thresholds › Collection – Data from NEs › Processing – Parse and format – Storage › Output – Reports – Alarms Ericsson Internal | 2012 -04 -25 | Page 12
Radio NW Optimization GSM - Common Structure Reports Recording Definition BSC Ericsson Internal | 2012 -04 -25 | Page 13 . . . Network data Data Collection Implementation Maps Radio NW Optimization Applications Recording Data RBS Export Network update CM GNIP Network data CM Authentication Counters PM Security
Security › › › Communication towards NEs via secure protocols Firewall and router configurations Hardening Vulnerability analysis User Authentication – Password protection- password service – Public Key authentication › User Authorization Ericsson Internal | 2012 -04 -25 | Page 14
User Authorization › Restricting the usage of the OSS system for user groups › example – Authorization to run an O&M application – Allowing to perform an operation – Authority model › Target: NE or application › Activity › Type: connecting activities to targets Ericsson Internal | 2012 -04 -25 | Page 15
Software & Hardware Management › SW & HW inventory to keep track on software and hardware installed › Software deployment across the technologies to secure the best network quality › Parallel batch jobs to secure fast software deployment › Back-up creation and restore › Distribute/install license keys Ericsson Internal | 2012 -04 -25 | Page 16
Software Deployment Overview Software deployment for nodes in 2 G and 3 G networks, as well as for core network nodes. OSS - RC WCDMA Common Applications GSM SN Core. Net Fault Mngr Perform Mngr Common alarms platform Ericsson Internal | 2012 -04 -25 | Page 17 SW/HW Mngr Config. Script Mngr §SW distribution and activation §Parallel handling of nodes
Network Inventory Overview Northbound interface (CLI based) OSS - RC WCDMA Common Applications GSM SN Core. Net Fault Mngr Perform Mngr Common alarms platform § Retrieval of HW, SW and license inventory information from the network § Export interface towards external management system Ericsson Internal | 2012 -04 -25 | Page 18 SW/HW Mngr Config. Script Mngr
Backup Administration Overview OSS - RC WCDMA Common Applications GSM SN Core. Net Fault Mngr Perform Mngr Common alarms platform SW/HW Mngr Config. Script Mngr §Creation of node backups §Transfer to central storage §Restore of previous configuration Ericsson Internal | 2012 -04 -25 | Page 19
Self Organizing Networks (SON) › Standard requirements defined by 3 GPP on simplifying O&M of LTE NWs › Minimizing OPEX › High level of automation › SON architectures – Centralized › SON algorithms reside on the OSS servers – Distributed › SON algorithms reside on the NW elements – Hybrid Ericsson Internal | 2012 -04 -25 | Page 20
Self Organizing Networks (SON) › Self planning – Self configuration – Self optimization › Automated Neighbour Relation: › Based on detected cell reports from the UE automatic discovery of undefined LTE cell neighbours › Self healing Ericsson Internal | 2012 -04 -25 | Page 21
e. TOM (enhanced Telecom Operations Map) › Telekom Management Forum & ITU standardized interfaces to allow consistent management of NEs from different suppliers › a reference framework and common language for defining and integration of BSS (Business Support System) and OSS (Operational Support System) Ericsson Internal | 2012 -04 -25 | Page 22
e. TOM Model Ericsson Internal | 2012 -04 -25 | Page 23
Why analitics › NW elements generate huge amount of data › In other industries same trends happen M 2 M communication › Internet of things (IOT) – Tera/peta Byte – structured – unstructured › Analytics can give insights about trends connected this data – Reporting - what happened – Analyzing - why happened – Predicting - what will happen Ericsson Internal | 2012 -04 -25 | Page 24
Customer Experience Management › Customer care › Network operation Center › Marketing › Measurement of the perceived individual customer experience across the terminal, radio access and mobile core – In real-time – For all customers 24/7 – With high accuracy › ›Automatically provides the most probable cause and suggested action Ericsson Internal | 2012 -04 -25 | Page 25
CC Lite View Service Operations View CC View Web Service (API’s) Web Application Server Repository Db Presentation CEM system Architecture Ref Data Incidents Enrich Flattene ESRs QI Aggregation Core Incident Generation & Aggregation Real Time Correlator(s) Celltrace Adaptor Network Celltrace GPEH Adaptor GPEH CTUM Adaptor EBM Adaptor CTUM CEAProbes CEA Probes EBM S 1 -U e. Node. B GTP-U MME RNC S 11 v 2 -C GTP S-GW S 4 GTPv 2 -C GTP-U lu Ericsson Internal | 2012 -04 -25 | Page 26 OSS P-GW Gn SGSN Gi GGSN Packet Data Network ** Not Delivered as part of CEA Possible Services Engagement
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