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1 © Nokia Siemens Networks Presentation / PLe 23.9.2011For public use – IPR applies
NetAct Optimizer 3.0 CD3 for GSM
GSM Adjacency Optimization
2 © Nokia Siemens Networks Presentation / PLe /23.9.2011For public use – IPR applies
Nokia Siemens Networks AcademyLegal notice
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3 © Nokia Siemens Networks Presentation / PLe /23.9.2011For public use – IPR applies
At the end of this module the trainee should be able to:
Edit the common adjacency optimization parameters for a separate deletion or creation of adjacencies
Set the required parameters for the automatic measurement-based adjacency optimization
Perform adjacency optimization
Module Objectives
4 © Nokia Siemens Networks Presentation / PLe /23.9.2011For public use – IPR applies
GSM Adjacency optimization
How can I start the measurement-based adjacency optimization?
How can I
• find the unused (unnecessary) adjacencies (deletion plan)?
• find the missing adjacencies (creation plan)?
5 © Nokia Siemens Networks Presentation / PLe /23.9.2011For public use – IPR applies
Prerequisites
Invalid adjacencies fixed
Antennas defined for every cell
Interference matrix available
Adjacency optimization KPIs available
Adjacency Constraints have been created or imported
Adjacency templates have been created for each object type
Template assignment rules have been created
6 © Nokia Siemens Networks Presentation / PLe /23.9.2011For public use – IPR applies
Methods and StartupCreation based on IM values, deletion based on ADCE KPIs
Check the KPI date and summarization level
Select target objects from the Navigator, Map or Browser
7 © Nokia Siemens Networks Presentation / PLe /23.9.2011For public use – IPR applies
Starting GSM Adjacency optimization
Only ADCEs selected for measurement-based GSM adjacency optimization
CIP or FEP can also be selected if available
• Check the retrieved IM sets and priorities
8 © Nokia Siemens Networks Presentation / PLe /23.9.2011For public use – IPR applies
Adjacency Optimization Tool View
9 © Nokia Siemens Networks Presentation / PLe /23.9.2011For public use – IPR applies
GSM Adjacency optimization
How can I start the measurement-based adjacency optimization?
How can I
• find the unused (unnecessary) adjacencies (deletion plan)?
• find the missing adjacencies (creation plan)?
10 © Nokia Siemens Networks Presentation / PLe /23.9.2011For public use – IPR applies
Common Parameters
Bidirectional optimization (recommended)
Creation and deletion of adjacencies into and out from scope allowed(recommended for small scopes)
Check maximum and minimum Adjacency List Lengths
Changes to adjacencies between frequency bands can be disabled
Frequency band specific list length settings can be enabled
11 © Nokia Siemens Networks Presentation / PLe /23.9.2011For public use – IPR applies
Deletion Options for All Adjacency Types
Deleting outgoing adjacencies to foreign target cells can be allowed
Adjacencies without measurements will have 0 values for KPIs and are deleted
12 © Nokia Siemens Networks Presentation / PLe /23.9.2011For public use – IPR applies
Deletion Parameters for ADCE
Bidirectional deletion requires at least one bad value in both directionsAdditional conditions can be used to avoid deleting adjacencies in low traffic cells
13 © Nokia Siemens Networks Presentation / PLe /23.9.2011For public use – IPR applies
Adjacency Deletion
Start optimization
14 © Nokia Siemens Networks Presentation / PLe /23.9.2011For public use – IPR applies
Detailed Results on Deleted
Info column shows the creation/deletion reason
Include Change column defines the results to be saved in the plan
15 © Nokia Siemens Networks Presentation / PLe /23.9.2011For public use – IPR applies
Saving the Results
The results must be saved to the plan
Save is possible only to the plan that is open when Adjacency optimization starts, or to a plan that is created after pressing Save
After the save the results can be listed to Browser or shownon the map
16 © Nokia Siemens Networks Presentation / PLe /23.9.2011For public use – IPR applies
Exercise
Check and set Common parameters
Set Deletion parameters and start the optimization
• View the results and check different views in the Adjacency Browser
• Change parameters and run again
Save the results into your plan
17 © Nokia Siemens Networks Presentation / PLe /23.9.2011For public use – IPR applies
GSM Adjacency optimization
How can I start the measurement-based adjacency optimization?
How can I
• find the unused (unnecessary) adjacencies (deletion plan)?
• find the missing adjacencies (creation plan)?
18 © Nokia Siemens Networks Presentation / PLe /23.9.2011For public use – IPR applies
Creation Options for All Adjacency Types
Creating BCCH and BCCH-BSIC collisions can be allowed ifFrequency Optimization is done in the same plan
Normally BCCH or BCCH-BSIC collisions are not allowed
If there are existing collisions in the network no new adjacencies are created for those cells unless collisions are allowed
19 © Nokia Siemens Networks Presentation / PLe /23.9.2011For public use – IPR applies
Creation Thresholds
Theta angle limitation not necessary (because of the measurements)
20 © Nokia Siemens Networks Presentation / PLe /23.9.2011For public use – IPR applies
Adjacency optimization
Start optimization. Before starting, check that Deletion is not selected.
21 © Nokia Siemens Networks Presentation / PLe /23.9.2011For public use – IPR applies
Detailed Results on Created
Info column shows the creation/deletion reason
Include Change column defines results for the save
22 © Nokia Siemens Networks Presentation / PLe /23.9.2011For public use – IPR applies
Results
Save the results
Locate on Map or List to Browser to check the templates
You can select all by pressing Ctrl-A
23 © Nokia Siemens Networks Presentation / PLe /23.9.2011For public use – IPR applies
Exercise
Check and set Common parameters
Uncheck Delete Adjacencies box in the Deletion tab
Set Creation parameters and find the missing adjacencies in your scope
• View the results in the Adjacency Browser
• Change parameters and run again
Save the results into your plan
24 © Nokia Siemens Networks Presentation / PLe /23.9.2011For public use – IPR applies
Summary
Prerequisites
• Site assignments and Antennas correctly defined
• Adjacency templates and template assignment rules defined
• Adjacency Constraints defined
Measurement-based deletion of GSM adjacencies Common Parameters
• Deletion based on KPI values
Measurement-based creation of GSM adjacencies
• Common Parameters
• Creation based on Interference Matrix values
Results saved in to the plan Plan that is open when the tool is started
• Plan that is created after pressing the Save button
• After the save the results can be located on the Mapand listed to the Browser
25 © Nokia Siemens Networks Presentation / PLe /23.9.2011For public use – IPR applies
Document change history
Date Version Name Change comment
23.9.2011 1.0 PLe First version for Optimizer 3.0 CD3