RANOP Part1 Introduction to Optimization

Slide 1Introduction to Optimization
Objectives
At the end of the course participants will be able to
understand process of optimization
understand the quality definition
perform basic optimization tasks
identify tools needed in optimization project
BSSPAR is a training related to parameters
3G RANOP is a optimization training course related to 3G
Presentation / Author
What should be taken into account when starting Network Optimization?
Assessment
Traffic and
Recommended features
Optimization – Process flow
What is Network Optimization?
What is Network Quality?
Investments vs. Benefit
Optimization Project - Risks
Different kind of definitions and targets
Input
More detailed input
If target etc must be specified based on assessment / analysis phase
Solutions
Priorization
Implementation
Solution verification
Criteria Check
Monitoring / data collection
Performance data collection
Deeper performance monitoring
Project report
Certain money with certain time with certain resources
Bad frequency plan but projects lasts only 2 weeks
No time to do totally new frequency plan
Biggest bottleneck is lack of transmission capacity
Should be optimize air interface if more gain will be get from transmission network
UL / DL coverage limitations
If UL limited, there is no need to built new sites. UL should be improved instead of DL
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as perceived by the operator within the given scope
Balance investment versus achieved quality
How Network Optimization can be done?
Note! Case 1 and 2, Same quality improvements over the period
Optimization projects
Quality trend
Quality trend
Case2:
Interference level
Customer complaints
There are many different ways to measure the quality of the network
Customer complaints
Can detect problems in certain regions that are masked by statistics.
A bit too late!!
Field Tests
Problems can be found very quickly, before customer complaints
Three main forms to monitor and detect the needs of optimization:
In green field the coverage is most important
Later capacity / quality / coverage are all most important
Same with optimization, how to optimize to get the biggest benefit
Which are the biggest bottlenecks in project
Coverage, capacity or quality
Scope is not defined well
For example air interface optimization => biggest bottlenecks are in Core or in transmission
Unrealistic target definitions
Resources. For example no transmission engineers available
Time and money. 2 weeks time to re-plan transmission network
Processes are not supporting time schedule
For example due to the internal processes it will take 4 weeks to implement parameter change
Used tools
Target Definitions…
Target Area:
Geographical area included in the project, number of BSCs and sites
Timeframe:
Methodology:
Drive test, used or not
Implementation – who will implement changes?
Tools:
Choice and preparation of all the necessary tools to develop the optimisation process
Share Of Responsibilities;
Agreeing who (NSN or the Operator) is responsible for every task
Project Organization:
Features and Strategies:
Features that are currently in use, and what others can be implemented if needed in order to improve the target indicators (E.g. Half Rate, Dynamic SDCCH etc.)
Operator HO/Adjacency, Traffic, GPRS strategy in order to check if the parameters are correctly set for that purpose
Software or hardware upgrades:
Our solution
Analyze the current performance in network
(mobility and interference)
Optimize accurately by using knowledge on current network configuration and network performance and traffic measurements
Customer benefits
Minimized usage of available frequency spectrum
Live Network Example

Documents

RANOP Part1 Introduction to Optimization