training material gsm adjacency optimization opt 3.1 cd2 v2

1 © Nokia Siemens Networks Presentation / PLe / 06.07.2012

For public use – IPR applies

NetAct Optimizer 3.1 CD2 for GSM

GSM Adjacency Optimization



Nokia Siemens Networks Academy

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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



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)?



Prerequisites

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



Methods and Startup Creation 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



Starting GSM Adjacency optimization

Only ADCEs selected for measurement-based GSM adjacency optimization

ARP,CIP or FEP interference types can be selected

• Check the retrieved IM sets and priorities



Adjacency Optimization Tool View





optimization?

How can I


plan)?




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



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



Deletion Parameters for ADCE

Bidirectional deletion requires at least one bad value in both directions

Additional conditions can be used to avoid deleting adjacencies in low traffic cells



Adjacency Deletion

Start optimization



Detailed Results on Deleted

Info column shows the creation/deletion reason

Include Change column defines the results to be saved in the plan



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 shown on the map



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





optimization?

How can I


plan)?




Creation Options for All Adjacency Types

Creating BCCH and BCCH-BSIC collisions can be allowed if Frequency 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



Creation Thresholds

Theta angle limitation not necessary (because of the measurements)



Adjacency optimization

Start optimization. Before starting, check that Deletion is not selected.



Detailed Results on Created

Info column shows the creation/deletion reason

Include Change column defines results for the save



Results

Save the results

Locate on Map or List to Browser to check the templates

You can select all by pressing Ctrl-A



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



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 Map and listed to the Browser



Document change history

Date Version Name Change comment

06.07.2012 1.0 PLe First version for Optimizer 3.1 CD2

15.1.2013 2.0 PLe Updated based on review. Valid for Optimizer 3.1 CD2 PCD

training material gsm adjacency optimization opt 3.1 cd2 v2

Documents

gsm gsm adjacency optimization

public use ipr

adjacency templates

slide presentation material

creation of adjacencies

startup creation

separate deletion

product documentation