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5.6 Multi-user functionalityOptimizer provides a possibility to create users, but it is flexible as regards to

optimisation plan management. Plans are user-specific, but there are no

restrictions for users accessing, using, modifying and deleting each others plans.

Users are encouraged to agree on the rules when working with plans.

Optimizer user-specific objects include user preferences likeBasic optimisation functionalitiesDN0196638 Nokia Corporation 29 (48)Issue 2-2 en Nokia Proprietary and Confidential

view definitions (map, navigator and browser)

raster calculation parameter sets

KPI profiles.

Note that KPI thresholds and Browser profiles are user-specific, but they can bedefined as public.

Some of the Optimizer objects are global, that is, changes in them will be visible

to all users and in all optimisation plans. These include:

plans

antenna models

antennas

propagation models

sites, cells

calculation rasters

polygons

KPIs

frequency groups in Frequency Allocation

manual separation settings in Frequency Allocation

forbidden channels in the allocation tool

automated adjacency generation parameters when stored in the database.

Optimizers plan-specific objects are visible only when the plan is open. When an

optimisation plan is deleted, the plan-specific objects are deleted also. Note that

planned, forbidden, and mandatory adjacencies are plan-specific whereas actualadjacencies are shown even when an optimisation plan is not open.

When working for the same plan, the Refresh functionality can be used to view

the most recent changes immediately. Optimizer also updates the view

automatically after a while if someone else has made changes to the same plan oractuals (that includes also the global objects).Optimizer Principles30 (48) Nokia Corporation DN0196638Nokia Proprietary and Confidential Issue 2-2enAdvanced visualisationDN0196638 Nokia Corporation 31 (48)Issue 2-2 en Nokia Proprietary and Confidential

6 Advanced visualisationAgeographical map provides a baseline for the visualisation of network topology,actual parameters and measured KPIs. Link loss estimates combined with

configuration and measurement statistics provide useful map views for analysing

the network.

The map information is used in the optimisation process for visualisation of the

mobile network structure and to give a new perspective for performance analysis.

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The main input data for the optimisation algorithms comes from statistical

measurements, from the network elements or user equipment.

Optimizer uses the NetAct common map component. All calculated raster

information is stored in a server and it is available for other NetAct applications.

If you have purchased the licence for Optimizer's Advanced Visualisation option,

a separate document containing more details will be delivered with the software

package.Optimizer Principles32 (48) Nokia Corporation DN0196638Nokia Proprietary and Confidential Issue 2-2enInterference matrix generationDN0196638 Nokia Corporation 33 (48)Issue 2-2 en Nokia Proprietary and Confidential

7 Interference matrix generationThe interference matrix represents the interference relations between cells.

Interference can be computed or expressed with different mathematical methods

such as ARP (Average Received Power) and CIP (Carrier over InterfererProbability). In Optimizer, interference is computed based on measurements thathave been made in an operated network.

The structure and contents of an interference matrix are described in more detail

in theInterference Matrix Open Interface document.

If you have purchased the licence for Optimizer's Performance Optimisation and

Automated Adjacency Management options, a separate document containingmore details will be delivered with the software package.Optimizer Principles34 (48) Nokia Corporation DN0196638Nokia Proprietary and Confidential Issue 2-2enAutomated adjacency managementDN0196638 Nokia Corporation 35 (48)

Issue 2-2 en Nokia Proprietary and Confidential

8 Automated adjacency managementAdjacency optimisation utilises mobile measurements collected and reported by

BSCs. By analysing the reports, the unused adjacent cells can be identified and

removed from the adjacency list. Mobiles measure the whole BCCH segment of

the frequency band and report the received power levels of the serving and

surrounding cells. Based on this, promising cells are added to the adjacency list

of each cell. The new adjacency plan can be visualised, modified, if necessary,

and scheduled for implementation.

If you have purchased the licence for Optimizer's Automated AdjacencyManagement option, a separate document containing more details will be

delivered with the software package.Optimizer Principles36 (48) Nokia Corporation DN0196638Nokia Proprietary and Confidential Issue 2-2enFrequency allocationDN0196638 Nokia Corporation 37 (48)Issue 2-2 en Nokia Proprietary and Confidential