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Huawei Confidential. All Rights Reserved
WCDMA UTRAN Optimization Flow
ISSUE 1.0
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Internal Use 1
WCDMA optimization is very
important part in the life of the
network. Mainly, the optimization
contents the preparation, single
site verification, RF optimization,parameters optimization.
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Internal Use 2
Chapter 1 Introduction of Optimization Flow
Chapter 2 The preparation for the Optimization Project
Chapter 3 Single Site Verification
Chapter 4 RF Optimization
Chapter 5 Parameters Optimization
Chapter 6 Optimiztion Report
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Internal Use 3
Introduction of Optimization Flow
Roles and Responsibility
The Working Flow
Document output
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Internal Use 4
Chapter 1 Introduction of Optimization Flow
Chapter 2The Preparation for the Optimization Project
Chapter 3 Single Site Verification
Chapter 4 RF Optimization
Chapter 5 Parameters Optimization
Chapter 6 Optimiztion Report
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Internal Use 5
The Preparation for Projection
Getting the Network Information
Environment Partition and Optimization Group
Optimization Tools and Software
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The Preparation for Projection
Getting the Network Information
The radio network planning report
The radio network optimization report (optional)
The parameters tables about UTRAN
The statistic data and the information reflected by users
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The Preparation for Projection
Optimization tools and Optimization software
Optimization tools
UMTS scanner (DTI)
UMTS test UE
Digital camera, GPS, Compass
YBT250 to position interference Optimization software
Probe
Assistant
Traffic statistic data analysis
Mapinfo
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Chapter 1 Introduction of Optimization Flow
Chapter 2 The preparation for the Optimization Project
Chapter 3Single Site Verification
Chapter 4 RF Optimization
Chapter 5 Parameters Optimization
Chapter 6 Optimiztion Report
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Single Site Verification
Preparation
Checking Warning Checking the state of cell
Checking the parameters of radio access network
Checking the configuration: scrambling code, power
configuration, neighbor cell table, handover parameters
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Single Site Verification
Site verification Checking the service function of each site
Signal strength
Feeder
Jumper
LA/RA update
PS attach PS attach
PS detach
The voice call setup
PDP active Intra-frequency handover
Inter-system handover
Inter-system cell-reselection.
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Chapter 1 Introduction of Optimization Flow
Chapter 2 The preparation for the Optimization Project
Chapter 3 Single Site Verification
Chapter 4RF Optimization
Chapter 5 Parameters Optimization
Chapter 6 Optimiztion Report
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RF Optimization
Purpose Optimize CPICH, services coverage and best server
Decrease the interference at the minimum level
Decrease the pilot pollution at the minimum level
Optimize neighbor cells table
Solve the call drop caused by RF
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RF Optimization
Drive test
PreparationTools
Map
Parameters
Car, human resource
Data analysis
Poor coverage
Best Server
Pilot pollution
Neighbor cells tableInterference
Call drop caused by RF
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RF Optimization
HUAWEI Recommendation
Operator Planning
Department
Operator OMC Department
Operator & HUAWEI OMC
Engineer modify the parameter
OMC change form, signed by SE
Description & Reason
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Chapter 1 Introduction of Optimization Flow
Chapter 2 The preparation for the Optimization Project
Chapter 3 Single Site Verification
Chapter 4 RF Optimization
Chapter 5Parameters Optimization
Chapter 6 Optimiztion Report
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Parameters Optimization
Purpose of parameters optimization
Drive test
Drive test for special area
Statistic analysis
Conclusion
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Purpose of Parameters Optimization
The tools and data for analysis:
scanner and UE
RNC record data
Statistic tools and KPI
MSC & SGSN record if necessary
Purpose of parameters optimization
Decrease the access success rate Decrease the call drop
Increase the quality of service
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Drive test
The contents of drive test
The call setup test for voice service The continuous call test for voice service
Idle mode test
The call setup test for video phone service
The continuous call test for voice service
The call setup test for PS service
The continuous call test for PS service
The test should be performed repeatedly to the position withproblems to make sure that the problem is repeatable
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Drive Test Data Analysis
Drive Test Data Analysis
Analyzing and finding out the solution for access failure(system bugs, power control parameter, cell selection
and reselection parameter etc.)
Analyzing and finding out the solution for drop call
(system bugs, power control parameter, handover
parameter etc.) Analyzing and finding out the solution for service quality
related problems (system bugs, power control parameter,
RLC parameter etc.)
Adj t t R d ti d
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Adjustment Recommendation and
Implementation
Adjustment Recommendation and Implementation Common Control Channel Power Allocation parameters
RL Maximum Power parameters
Intra-frequency Handover parameters
Inter-frequency Handover parameters
Inter-RAT Handover parameters Power Control parameters
Access parameters
Other related parameters
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Internal Use 21
Test for Special Areas
Special area refers to a small district or indoors
environment Operator offices, residence of VIP
Key hotels or entertainment location
Government location
Locations of large company or group subscribers
Locations tend to be cared , such as railway station or
airport
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Internal Use 22
Chapter 1 Introduction of Optimization Flow
Chapter 2 The Preparation for the Optimization Project
Chapter 3 Single Site Verification
Chapter 4 RF Optimization
Chapter 5 Parameters Optimization
Chapter 6Optimiztion Report
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Internal Use 23
Optimization Report
The optimization report should be presented after
the project passes the customer acceptance. Theoptimization report should include:
Project background introduction
Existing network status
Acceptance criteria
Optimization process
Problem analysis and adjustment recommendation, and the
effect for the implemented part
Acceptance test and result
Leftover problems and suggestions from the optimization pointof view.
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