Network Optimization procedureNetwork Optimization procedure
Huawei Technologies
Course ContentsCourse Contents
Concept of RN optimization
KPI of radio network
Work flow of RN optimization
Parameter adjustment principles
RN optimization tools introduction
Concept of RN Optimization Concept of RN Optimization
Radio network optimization means network performance
improvement utilizing existing network resources.
Steps in general
Data collection and verification
Data analysis
Parameter and hardware adjustment
Optimization result confirm and reporting
The purpose is increasing the utilization of network resources
and solving the existing and potential problem on the network,
identifying solutions for future network planning.
Concept of RN Optimization Concept of RN Optimization
Capacity
CoverageQuality
Optimize
Concept of RN OptimizationConcept of RN Optimization
Due to the mobility of subscribers and complexity of radio
wave propagation, most of network problems are caused by
increasing subscribers and the changing environments.
RN Optimization is a continuous process that is required as
the network evolves
Concept of RN OptimizationConcept of RN Optimization
In the following case, the network should be optimized
New network or expansion on existing network
The network quality decreased seriously and there are many
complaints from subscribers.
An event occurs suddenly which affects the network
performance seriously.
The number of subscribers increased and affects the network
performance gradually.
Concept of RN OptimizationConcept of RN Optimization
TRAFFICSTATISTICS
DRIVE TEST
CUSTOMERCOMPLAINTS
OPTIMIZE
• Input for Optimization
Concept of RN optimization
KPI of radio network
Work flow of RN optimization
Parameter adjustment principles
RN optimization tools introduction
Course ContentsCourse Contents
KPI of Radio NetworkKPI of Radio Network
KPI (KEY PERFORMANCE INDICATORS)
Indicates overall performance of network over a period of time
Good way to monitor network trends and anticipate future problems
Data obtained from drive test and traffic statistics
KPI of Radio NetworkKPI of Radio Network
Typical Radio Network KPI
BTS3
BTS4
BTS1
BTS2
KPI Parameter Source
Call Drop Rate OMC/Drive test
Congestion Rate Drive test
Handover Success Rate OMC/Drive test
Busy Hour Traffic OMC
TCH Utilization OMC
Call Setup success rate OMC/Drive test
Coverage Drive test
Quality Drive test
Concept of RN optimization
KPI of radio network
Work flow of RN optimization
Parameter adjustment principles
RN optimization tools introduction
Course ContentsCourse Contents
Flow Chart of Network OptimizationFlow Chart of Network Optimization
Concept of RN optimization
KPI of radio network
Work flow of RN optimization
Parameter adjustment principles
RN optimization tools introduction
Course ContentsCourse Contents
Parameter Adjustment Principles Parameter Adjustment Principles
IDENTIFYPROBLEM
MAKECHANGES
MONITOR EFFECT
MAKECHANGES
•Parameter adjustment procedure
Parameter Adjustment Principles Parameter Adjustment Principles
•Parameter Types
Radio Parameters Engineering Parameters
Handover Parameters
Handover Parameters
Handover Parameters
Antenna
Orientation
Antenna
D-tilt
Antenna
Height
Parameter Adjustment Principles Parameter Adjustment Principles
Adjustment of cell data parameters
Adjust the cell parameters according to the features of actual
radio channel traffic and signaling load. The parameters are for
cell select,cell reselect,call setup, handover etc, so as to
improve the overall network performance and service quality to
the end user.
Another basic principle of radio parameter adjustment is to
maximize the current network resource, traffic sharing in the the
whole network, increase the utilization of the equipment, so as to
increase the profit-investment ratio.
Parameter Adjustment PrinciplesParameter Adjustment Principles
According to the feature of problem to be solved, there are
two types of radio parameter adjustment.
Solve static problems: Analyze the average traffic and signaling
flows of the network and solve the network problems that
existed long time
Solve traffic overload and congestion problems during some
special period caused by special events.
Concept of RN optimization
KPI of radio network
Work flow of RN optimization
Parameter adjustment principles
RN optimization tools introduction
Course ContentsCourse Contents
Driving Test ToolsDriving Test Tools
The following are the frequently used drive test tools:
TEMS and GIMS
Ant Pilot and GSM 2000
SAFCO Walkabout & SAFCO OPAS
TS9951
NEPTUNE
Driving Test ToolsDriving Test Tools
Drive test Tool application
Identify specific problems in the network
Attend to customer complaints
Perform network benchmarking with other operators
Collect periodic network data for reporting
Check coverage in new areas
Driving Test ToolsDriving Test Tools
Example: Drive test data
Signaling AnalyzerSignaling Analyzer
Signaling analyzer
In real time, MA-10 signaling analyzer can trace A-bis interface s
ignaling message, A-G interface signaling message, SS7 signali
ng message of ISUP, TUP and INAP, and also bit error rate of tr
ansmission system.
For further analysis the signaling message files can be saved du
ring online tracing, then they can be opened for analysis at anyti
me.
Spectrum AnalyzerSpectrum Analyzer
Spectrum analyzer
The spectrum analyzer is mainly used to test the characteristics
of frequency, including spectrum, power of the adjacent channel,
and frequency scanning etc.
OMC Traffic StatisticsOMC Traffic Statistics
OMC
Provides flexible means to record different information from the
network
Able to sample large amounts of data to give a better picture of
the network on a longer period of time