P.I.Works SON Suite
Integrated analysis and optimization environment
P.I.Works SON Suite provides end-to-end optimization features for mobile operators with intensive drill down and root cause analysis functions. P.I.Works SON Suite integrates P.I.Works’ industry leading tools into a single powerful and extensible solution. It helps optimization engineers in their daily tasks with a flexible user interface, which enables the users to customize their working environments in the most effective way with a wide range of display and usage options. Plug-ins can be configured to provide just the right functionality required. Healer modules can be configured for bulk and automated optimization. P.I.Works SON Suite is an environment allowing previously separate tasks to share data and results. This offers significant value beyond the sum of the parts. For example, P.I.NeiOpt healer advice on neighbor relations problems can be immediatly visualized in the same tool along with Hand-over analysis and in conjunction with geographical mapping.
Executive Dashboard
The configurable Executive Dashboard is the starting point in which the user will see the network or area status with a holistic approach. From the dashboard the user will be able to jump to any specific module for drilling down and deep analysis operations.
The Executive Dashboard has the most important information about data consistency and integrity. The User will see if the data is consistent and complete before starting optimization tasks. If the respective plug-in is loaded, the following are available on the first screen, which enables users to jump to the corresponding plug-in for detailed analysis.
AM-CM Correlations
P.I.Works SON Suite uses the Floating Alarms generated by P.I. Event Management System, which checks for the defined KPI’s for all network elements (Cell, RNC/BSC, Cluster, etc.) within a period of time on a sliding window basis and triggers an alarm if a defined delta percentage is exceeded to catch a sudden change in the KPI. All Configuration Managment (CM) changes are logged in the database at each level and the floating alarms are correlated with these CM changes in order to see if there is a CM change for the corresponding or related elements (Neighbors, etc.). P.I.Works SON Suite gives this correlated information in order to highlight the KPI change along with the CM Change.
AM-FM Correlations
The Fault Management alarms are collected from an alarm management tool. These fault management alarms are correlated with floating alarms to inform the user about sudden KPI changes on an element which has a raised Fault Management alarm within the same time frame.
Handover Plug-in
The Handover plugin enables the user to analyze the cell neighbor definitions and their performance statistics with complementary information such as a wide range of KPI selections and multiple map formats including google, yahoo, bing map with 2D, 3D, Street View modes. The Handover Plug-in gives a comprehensive view for all neighbor related analyses.
P.I. Tracer Plug-in
The P.I.Tracer plug-in enables the user to analyze 3G call traces collected from different vendors and formats ( GPEH, IOS, CHR, etc.) for troubleshooting and VIP Case Analysis purposes. Call traces can be filtered on IMSI or IU release cause with timeframe selection. It is possible to analyze connection by connection with the complete message flow to see the whole status during the connection or problem state.
P.I. CM Analyzer Plug-in
Due to hierarchical network topology, there may be cases where inconsistencies between node configurations may cause networks to underperform. P.I.CM Analyzer is a mixed network tool allowing all cross-checks to be done in a network with different vendors and technologies. All standard audit checks are ready off-the-shelf. New audit checks can be added easily. Using daily CM snapshots from the network elements makes it possible to track and detect changes to CM parameters across multiple days. Also can create reference parameter lists for network elements and CM Analyzer check through the network for non-compliant elements.
Histograms Plug-in
The Histograms plugin is a graphical interface with many predefined histograms which the user is able to configure in many ways. The user chooses from a wide range of histograms such as Carrier Power (UL/DL), Ec/No, RSCP, PRACH Delay, HS Throughput (UL/DL), CQI (UL/DL), etc. The user can configure the screen to show these histograms in a personalized way. Multiple screens are also supported.
P.I.Trend Plug-in
The KPI Trend plugin displays the KPI trend in a graphical way between 2 selected days and for the selected object (RNC/BSC, Cell, Cluster, etc). It is possible to display multiple KPI’s at the same time for more detailed analysis. The results can be tabular or graphical with multiple graphic display options.
Geolocation Plug-in
Geolocation features are based on collected call trace measurements for locating mobile devices during the event generations. The output is used for Event based location detection, Traffic density heat map, and IMSI/IMEI based mobile tracking/troubleshooting. The presentation layer has a wide range of maps including google maps, bing, yahoo maps,etc. and has the ability to export to any required format for various usages.
P.I.Works SON Suite – Healers
P.I.Works SON Suite has a wide range of healers for bulk optimization purposes and gives summary information in the Executive Dashboard from which the user is able to jump to the relevant healer plugin for extensive investigation. Each healer suggests a list of change requests (hard or soft parameters), which users can choose to execute directly or analyze further, within the tool.
P.I.Scopt Scrambling code Optimizer gives SC Change recommendations for clashing cells. The optimizer works on a cell cluster, RNC, set of RNC’s or any defined region. P.I.Scopt comes with a default rule set but also it is possible to define certain rules for different areas or network characteristics for specific requests. It also allows to perform a full plan from scratch by P.I.Scopt.
P.I.Neighopt Neighbor optimizer gives neighbor addition/deletion recommendations. The healer gives recomendations based on call trace data measurement and detections, performance counters and geographic parameters by customizable rule sets for neigbhor addition and deletion in 3G-4G networks. It follows the 3GPP standard definition of SON ANR functionality for LTE networks.
P.I.Freqopt Frequency Optimizer gives frequency change recommendations. The FreqOpt chooses the cells which suffers from co-channel and adjacent channel interference.Then it suggests clean frequencies for these cells.
P.I.Wheelopt Optimizer that detects and warns for cross-feeders. The cross feeders is a common problem, especially in fast rollout environment. The output of the healer is a list with a high probably cross feeder issue.
P.I.Covopt Coverage optimizer for better coverage handling. The Covopt takes measurement reports coming from call traces and identifies the over shooter and undershooter cell. It then suggests antenna tilt or azimuth changes.