wcdma rno guideline

WCDMA Radio Network Optimization guideline

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WCDMA Radio Network Optimization

Guideline

HUAWEIHUAWEI

Huawei Technologies Co., Ltd.

05-02-2004


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Table of Content 1 Overview of Radio Network Optimization Work Flow ............................................................ 6 1.1 Roles and Responsibility ................................................................................................. 6

1.1.1 Role of the operator ................................................................................................... 6 1.1.2 Role of the Account Manager .................................................................................... 6 1.1.3 Role of the regional team leader ................................................................................ 6 1.1.4 Role of the RNO Project Manager ............................................................................. 6 1.1.5 Role of the RNO Project Leader ................................................................................ 6 1.1.6 Role of the Drive tester .............................................................................................. 7 1.1.7 Role of the Post Processing Engineer ....................................................................... 7 1.1.8 Role of the Driver ....................................................................................................... 8 1.1.9 Role of the R&D Product Support Engineers ............................................................. 8

1.2 Work Flow chart............................................................................................................... 8 1.3 Input Requirements ......................................................................................................... 9

1.3.1 Optimization Quality Object ....................................................................................... 9 1.4 Output Document List .................................................................................................... 11

1.4.1 Customized Document............................................................................................. 11 1.4.2 Process Document and Data ................................................................................... 11

1.5 Operation Guidelines ..................................................................................................... 11 2 Project Preparation and Startup .......................................................................................... 11 2.1 Understanding of the Existing Network.......................................................................... 12 2.2 Optimization Target Determination ................................................................................ 12 2.3 Cluster Division and Optimization Team Establishment ................................................ 13 2.4 Optimization Tools and Softwares ................................................................................. 14

2.4.1 Optimization Tool ..................................................................................................... 14 2.4.2 Optimization Softwares ............................................................................................ 14

3 Equipment Functional Test.................................................................................................. 14 3.1 Alarm Check .................................................................................................................. 15 3.2 Cell State Check............................................................................................................ 15 3.3 Performance Indicators Check ...................................................................................... 15 3.4 Cell Parameters Configuration Check............................................................................ 15 3.5 Service Functional Check .............................................................................................. 16

4 Cluster Optimization ............................................................................................................ 16 4.1 Pilot Coverage Test and Analysis .................................................................................. 16

4.1.1 Test Route Select .................................................................................................... 16 4.1.2 Load Simulator......................................................................................................... 17 4.1.3 Data Analysis ........................................................................................................... 17 4.1.4 Adjustment recommendation and Implementation ................................................... 17

4.2 RF Check....................................................................................................................... 19 4.3 Equipment Functional Test ............................................................................................ 19 4.4 Service Test and Analysis ............................................................................................. 20

4.4.1 Test Route Determination ........................................................................................ 20 4.4.2 Load Simulator......................................................................................................... 20 4.4.3 Data Analysis ........................................................................................................... 20 4.4.4 Adjustment recommendation and Implementation ................................................... 20

4.5 Performance Indicators Optimization............................................................................. 21 4.5.1 Adjustment recommendation and Implementation ................................................... 21

4.6 Test for Special Areas ................................................................................................... 21 4.7 Cluster Optimization Summary ...................................................................................... 21

5 Whole Network Optimization ............................................................................................... 22 5.1 Problems Summary, Analysis and Solution ................................................................... 22 5.2 Whole network drive Test .............................................................................................. 23

6 Customer Acceptance and Report Output........................................................................... 23 6.1 Customer Acceptance ................................................................................................... 23 6.2 Optimization Report Output ........................................................................................... 23 6.3 Presentations and Customer Communication ............................................................... 23


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List of Table

Table 1 Engineering parameter acceptance standards ............................................................. 19 Table 2 Problem summary......................................................................................................... 22


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List of Figure

Figure 1 Radio network optimization flow .................................................................................... 9 Figure 2 Structure of RNO team ................................................................................................ 14


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WCDMA Radio Network Optimization Guideline Keyword: WCDMA, radio network optimization, work flow Abstract: The document is to provide RNO engineers with work flow, roles and

responsibilities, reference document list, and steps to follow when optimizing a WCDMA network.

Abbreviations:

Abbreviations Full spelling KPI Key Performance Indicator

RNO Radio Network Optimization MOC Mobile Originated Call MTC Mobile Terminated Call


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1 Overview of Radio Network Optimization Work Flow

1.1 Roles and Responsibility

Through the network optimization, there are many roles involved, it is possible that more

than one role could be performed by an engineer. The role and responsibility are as follows:

1.1.1 Role of the operator

Role name: operator

From: Operator XXX department

ID: OPRTR

Description: To put forward requirements on the optimization, check and accept the

optimized network

1.1.2 Role of the Account Manager

Role name: Account manager

From: HUAWEI Marketing & Sales Department

ID: MKTAC

Description: To communicate with the customer

1.1.3 Role of the regional team leader

Role name: regional team leader

From: HUAWEI engineering Department

ID: ENG TL

Description: To supervise the regional network installation, commissioning and daily running

1.1.4 Role of the RNO Project Manager

Role name: RNO project manager

From: HUAWEI Radio Network Planning Department

ID: NO_PM

Description: To organize the general work of network optimization and to be responsible for

the optimized network quality and the optimization report.

1.1.5 Role of the RNO Project Leader

Role name: RNO project leader

From: HUAWEI Radio Network Planning Department


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ID: NO_PL

Description: To be responsible for sub-project network optimization. In a small project, the

RNO manager (NO_PM) may take the post.

Responsibility:

1. To determine the priority of problems to be solved,

2. To make daily and weekly summary and to make schedule for next week,

3. To maintain the log of all parameter changes

4. To be the decision point for all activity concerning the equipment functional tests, cluster

optimization, pilot test and service test

5. To analyze the plots of the OMC statistic data and the drive test data

6. To provide resolutions to performance problems such as coverage, drop or access.

1.1.6 Role of the Drive tester

Role name: Drive tester

From: HUAWEI Network Planning Department

ID: NO_DRV

Description: To collect the drive test data.

Responsibility:

1. To run the drive test tools

2. To collect the OMC statistics data

3. To perform the equipment functional test

1.1.7 Role of the Post Processing Engineer

Role name: Data Post Processing Engineer

From: HUAWEI Network Planning Department

ID: NO_DPP

Description: To post-process and analyze the collected data and to locate the performance

problem

Responsibility:

1. To determine the drive test area and route,

2. To register the OMC statistics task

3. To process the OMC statistics data and then produce the figure daily,

4. To process the drive test data and then produce the plots,

5. To analyze the consistency of the results of OMC statistics data and drive test data,

6. To provide resolutions to performance problems such as coverage, drop or access.

7. To maintain the test data and the traffic statistics database.


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1.1.8 Role of the Driver

Role name: Driver

From: Temporary

ID: DRIVER

Description: To help to determine the drive test route and safely drive a predetermined route

based on general maps for the area.

1.1.9 Role of the R&D Product Support Engineers

Role name: R&D product support engineers

From: R&D

ID: RDSPT

Description: To help to locate the performance problem

1.2 Work Flow chart

Concerning the different phase of the network, the optimization process is divided into two

situations: the optimization before launch and the optimization after launch. The difference is

weather there are users in the network or not.

For the network after launch, there are OMC statistic data can be used to reveal the network

performance. On the other side, the influence to the network should be taken into

consideration. That is the reason that the adding of the simulated loading and the change of

the parameter must be done at night if necessary.

If not otherwise stated, the following flow chart is applicable to the optimization for the both

situation. The optimization process is divided into the following parts:

Project preparation and startup Equipment functional test Cluster optimization Whole network optimization Customer acceptance Optimization report output


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Figure 1 Radio network optimization flow chart

1.3 Input Requirements

1.3.1 Optimization Quality Object

The optimization quality object, made by the service provider and the customer depending

Optimization target determination

Project contract

Cluster division and team establishment

Equipment functional test

Cluster area optimization

whole network optimization

Optimization report output

Customers check and accept

XXX Project Optimization Report

XXX Project Acceptance Report

Optimization record: 1). Description of optimization process 2). Description of test data and description 3). Output of updated engineering parameter table 4). output of updated cell parameter table

Network information

Radio network planning report

Engineering Parameter table

OMC statistics data, alarm data, Subscriber complaints

Cell parameter table

Optimization history


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on the actual network, is confirmed in a contract and is used to evaluate the project quality

together with the relevant acceptance criteria.

Generally, the radio equipment sales contract contains the service of engineering network

optimization, that is, when the new NODEB and expansion NODEB are cut over, Huawei will

cooperate with the customer to optimize the network following the negotiated quality

standards. The standards should be determined by the RNO service terms in the project

contract, here is the example of common standards:

1) No decrease of performance indicators is allowed in the relocated or expanded network;

2) After adjustment, the performance indicators of a new network should meet the

requirement of the customer;

3) The service provider and the customer should agree on a reasonable performance index

depending on the actual network status, especially for some special requirements

beyond the service range/service mode or some special network, such as the peripheral

network, tunnel coverage, sea coverage and indoors coverage.

4) If the customers requirement is beyond the service range or mode of this network

optimization, the two parties will sign another contract for it.

5) The traffic average value in busy hours three days before the cutover is adopted as the

index of the previous network, while the traffic average value in busy hours three days

after the optimization is regarded as the index of the optimized network.

The special RNO service should be clarified in a service contract based on the mutual

understanding of network quality.

Please refer to the relevant part in WCDMA RNO KPI check list


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1.4 Output Document List

1.4.1 Customized Document

1 XXX Project Network Optimization Working Plan 2 XXX Project Acceptance Report 3 XXX Project Optimization Report 4 XXX Project Engineering Parameter Table (updated one after optimization) 5 XXX Project Cell Parameter Table (updated one after optimization)

1.4.2 Process Document and Data

1 XXX Project XXX Cluster Description of Optimization process 2 XXX Project XXX Cluster Problem Record table 3 XXX Project XXX Cluster Problem Analysis report 4 XXX Project XXX Cluster Description of Test Data and test data files 5 XXX Project XXX Cluster Engineering Parameter Table (updated one after

optimization)

6 XXX Project XXX Cluster Cell Parameter Table (updated one after optimization)

1.5 Operation Guidelines

1 WCDMA RNO Network KPI check list 2 WCDMA RNO 3GOT User Manual 3 WCDMA RNO OCNS Guideline 4 WCDMA RNO Pilot Pollution Analysis Guideline 5 WCDMA RNO Access Failure Analysis Guideline 6 WCDMA RNO Drop Call Analysis Guideline 7 WCDMA RNO Handover Failure Analysis Guideline 8 WCDMA RNO Paging Failure Analysis Guideline 9 WCDMA RNO Equipment Functional Test Guideline 10 WCDMA RNO Drive Test Guideline

2 Project Preparation and Startup It is suggested to establish a problem-oriented project database, in which, the problem

analysis report is used to associate the description of the problem, collected data, the

analysis process and conclusion, adjustment and the final state of the problem. Then the

problem analysis reports can be used as the resource for the optimization report.


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2.1 Understanding of the Existing Network

Before the network optimization, the RNO manager (NO_PM) should be acquainted with the

existing network to make the working plan.

The information below is required:

Radio Network Planning report The radio network planning report can be obtained from the planning manager (NP_PM) in

charge of the project if the optimization is before the network deployment.

The radio network planning report can also be obtained from the customer (OPRTR) if the

optimization is after the network deployment. In addition, if the network to be optimized is

established by Huawei, more helpful information can be got from the planning manager

(NP_PM) in charge the project.

The planning report(s) should include each time of network expansion.

Optimization history The deployed network may be optimized many times before, so it is necessary to obtain the

optimization history to learn the network adjustment process and remained problems.

Latest engineering parameter table and cell parameter configuration table They can be obtained from 1) the above planning report, expansion report and optimization

history, or 2) the regional team leader, while the cell parameter configuration can be read

online from the OMC configuration database. It is preferred to compare the data obtained

from the above two ways, for any inconsistency, the construction and data configuration

should be performed following the planning requirements. If there is any change caused by

the construction difficulty, we should inform the planning team for further analysis.

OMC statistic data, OMC alarm data and subscriber complaints of the existing network We should put the emphasis of the optimization on the issues shown by the OMC statistic

data or the subscriber complaints, therefore the obtaining of this information can help us to

specify the major targets of the optimization.

2.2 Optimization Target Determination

The optimization to a deployed network aims to ensure each item of KPI achieves the

expected goal, to solve the subscriber complaints and to guarantee the service quality in

special areas.

The optimization to a network not deployed may ignore the KPI of OMC statistic data due to

insufficient traffic statistics data.

And the optimization to specified problems should aim to locate the cell or area with

problems and to solve them.

Different from section 3.3, this step emphasizes the performance indicators of high layers.

Refer to the related parts in WCDMA RNO Network KPI check list, WCDMA RNO 3GOT


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User Manual.

2.3 Cluster Division and Optimization Team Establishment

After making the optimization object, we can start to establish the optimization team by

estimating the workload, deciding the human resource and tools requirements and making

the time schedule. The general organization is shown in the figure below:

NO_PM

- 1 NO_PL

NODPP

NODRV

DRIVER

- N NO_PL

NODPP

NODRV

DRIVER

RNO project Manager

RNO Leader - 1 RNO Leader - N

Data Analyzer Data Analyzer

Drive Tester NODRV

Drive Tester NODRV

Driver Driver


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Figure 2 Organization of RNO team

See Here for description and responsibility of each role.

If the NODEBs involved are more than 20 or the test time of the target area exceeds 3 hours,

we should divide the target area into parts before the optimization. Cluster refers to a set of NODEBs in one part. An area of a cluster should contain a complete test route and the time for one test should less than three hours. In addition, the test time of each cluster should be similar.

The radio network planning manager (NP_PM) is responsible for cluster division and coordination among teams.

2.4 Optimization Tools and Softwares

2.4.1 Optimization Tool

Each team should be equipped with a set of drive test tools, including:

1. Scanner: Agilent E7476A with E6455C scanner

2. Test UE: Qualcomm TM6200.

3. GPS and data line: the E6455C has built-in GPS

The equipment below is necessary to check site engineering parameter:

1. Protractor: To check the down tilt of antennas

2. Compass: To check the azimuth of antennas

More than one set of equipment below is required in a large project team:

1. YBT250: For interference check and location

2. Digital camera: Used to record special propagation environment

2.4.2 Optimization Softwares

The following softwares are required for each team:

1. 3GOT: To analyze cell parameters configuration, OMC statistics data and OMC alarm

data

2. post processing tool: Data Assistant or Analyzer

3. Mapinfo: For some self-definition analysis of drive test data

3 Equipment Functional Test Before the time-consuming drive test, we should perform the following routine procedures in

core equipment room to solve some obvious problems of system function, after that, we

should combine the report of each check subitem to a general report. In a large project, if

some areas use the same CN equipments, then the functional test for CN equipment needs

to be done only one time.


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3.1 Alarm Check

Check the alarms of board fault or transmission fault of each element through LMT or

M2000.

Analyze the cause of each alarm and try to solve the RNC and CN faults in this step, while

some faults (such as NODEB fault) are allowed to be solved before the pilot coverage test in

cluster optimization.

The alarm check report of this procedure should contain the alarm name, alarm reason,

whether the problem is solved and the solution.

Please refer to the related parts in WCDMA RNO 3GOT User Manual.

3.2 Cell State Check

Check the cell states with LMT of RNC or M2000, such as whether all cells are activated,

whether the data validity indication is valid or whether the background management state

is unblocked.

Analyze the cause of each exception and try to solve the faults in this step, while some

faults (such as NODEB fault) are allowed to be solved before the pilot coverage test in

cluster optimization.

The cell state check report in this procedure should contain the check items and cells with

problem, whether the problem is solved and the solution.

Please refer to the related parts in WCDMA RNO Equipment Functional Test Guideline.

3.3 Performance Indicators Check

We should collect and analyze the cell-oriented performance indicators of the deployed

network.

Firstly, analyze the greatly degraded performance indicators that may be caused by the

functional fault of equipment, and try to solve the faults in this step, while some faults (such

as NODEB fault) are allowed to be solved before the pilot coverage test in cluster

optimization.

Secondly, make sure the key performance indicators to be optimized later through the

comparison with the pre-set threshold.

The performance indicators check report in this step should contain the check items and

cells with problems, whether the problem is solved, the solution and remained problems.

Please refer to the related parts in WCDMA RNO 3GOT User Manual .

3.4 Cell Parameters Configuration Check

Check equipment version and cell parameters configuration, especially the scrambling code,

algorithm switch, power setting, neighbor cell list, handover parameter, access threshold


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and syn/asyn parameters.

The cell parameters configuration check report in this step should contain the check items

and cells with problems, whether the problem is solved and the solution.

Please refer to WCDMA RNO 3GOT User Manual .

3.5 Service Functional Check

After the above four steps, we still have to check the service function before the optimization

to ensure the basic service functions are normal.

The check consists of general voice service call setup test and PDP activation test. The call

setup test can ensure the normality of the control plane and user plane in the CS domain,

while the PDP activation test can ensure the normality of the control plane and user plane in

the PS domain.

Make call setup test from Mobile to Mobile, from Mobile to fixed phone and from fixed phone

to Mobile.

The service functional check report in this step should cover the check items and results,

whether the problem is solved and solution.

Please refer to the related part of WCDMA RNO Equipment Functional Test Guideline .

4 Cluster Optimization The cluster optimization begins after the equipment functional test in the core equipment

room.

During the cluster optimization, the optimization manager (NO_PM) should trace the

optimization progress of each team, and organize the information communication

periodically to facilitate the solving of some common problems.

The cluster optimization only aims to problems that can be quickly solved, so if a problem

cannot be solved in two hours, it should be recorded in the analysis report and remained to

be solved during the whole network optimization.

4.1 Pilot Coverage Test and Analysis

Get information on the pilot coverage, optimize pilot poor coverage problem and pilot

pollution problem, optimize neighbor cell list.

Refer to WCDMA RNO Drive test Guideline

4.1.1 Test Route Select

Determine the drive test area depending on the pilot coverage prediction in the planning

report, and then select the test courses with drivers who are familiar with the local condition.

Its recommended that the test for a crowded area can be done in non-busy hours to save


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time.

Principles to select test route:

1. The routes should be of different distance from the site, such as close to the site,

middle part of the cell and the edge of the cell

2. The routes should cover the main roads

3. The routes should contain residence zone

4. The routes should cover low-speed, media-speed and high-speed roads

5. The routes should cover different propagation environments as much as possible

6. The routes should cover the overlap area, such as the handover area and pilot

pollution area

7. The routes should cover high traffic area (in design or in practice)

8. The routes should contain the poor coverage area in design

4.1.2 Load Simulator

The test to a network not deployed should be performed under simulated load to find the

potential problems in the future running. The downlink simulated load can be achieved by

the OCNS function of the product. The suggested simulated load is 75%.

Its not recommended to do the test with simulated load for a deployed network because the

simulated load will influence the user.

Please refer to WCDMA RNO OCNS Guideline.

4.1.3 Data Analysis

The drive test data analysis consists of:

1. Comparing the pilot strength from the drive test with the prediction result to solve such

problems as cell power and the antenna connection.

2. The pilot coverage investigation, focus on the problems of poor coverage area

3. Soft handover proportion investigation, focus on the problem of excessive soft handover

proportion

4. The dominant cell investigation, focus on the problem of pilot pollution. Please refer to

WCDMA RNO Pilot Pollution Analysis Guideline The test area needs to be modified depending on the result of pilot coverage test.

4.1.4 Adjustment recommendation and Implementation

Most of the adjustment recommendation is from two parts:

1. Engineering parameter adjustment

2. Cell parameter adjustment, usually after the engineering parameters changes are

finished


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1. Engineering parameter adjustment

Most of the problems of coverage or interference can be solved by adjusting the engineering

parameter. One side is to enhance the coverage to eliminate the blind area; the other hand

is to control coverage and interference. To be specifically, to use the combination of ways

below:

z Antenna azimuth adjustment z Antenna down tilt adjustment z Antenna location adjustment z Site replacement z Antenna replacement z Add repeater, RRU or microcell for expansion

2. Engineering parameter adjustment prediction

Before the implementation of the adjustment of the engineering parameters, the planning

software should be used to predict the affect to the network, thus avoiding unwanted

problems.

The adjustment to the engineering parameters usually influences only the neighbor cells. If

the cell to be adjusted is on the edge of a cluster, the related team should be notified for

further analysis of the adjustment influence, or the adjustment can be postponed to the

whole network optimization.

3. Cell parameters adjustment

Some algorithm parameters that are environment sensitive should be adjusted depending

on the local propagation environment and traffic environment.

The parameters to be optimized are:

Neighbor cell list Handover parameters Power control parameters Access parameters Etc.

4. Cell parameters adjustment prediction

The influence caused by the cell parameters adjustment should be analyzed before the

implementation. If the adjustment will influence other clusters, it should be implemented after

being reviewed by the optimization manager (NO-PM) and the related personnel, or it can

be postponed to the whole network optimization.

The parameters adjustment to a deployed network should be performed when traffic is low

(for example: at midnight). It is essential to do the functional test after adjustment.


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4.2 RF Check

Its recommended to do the RF check for sites with problems depending on the analysis

result of the pilot coverage test.

The cell-oriented RF check is to check the antenna system and engineering parameters.

The following installation problems of antenna system may exist: 1) power amplifier/NDDL is

not tightly connected; 2) the jumper at the top of the cabinet is not tightly connected, 3) the

antenna feeder is reversely connected, 4) Excessive standing wave ratio and 5) the azimuth

or the down tilt is not compliant with the design.

The engineering parameters check evaluates the engineering installation quality by

comparing with the engineering parameters table. The check is mandatory to the network

optimization before deployment; however, it is optional to the optimization of a deployed

network.

The check items including:

Antenna azimuth Antenna down tilt The standard to each parameter is shown in Table-1

Table 1 Engineering parameter acceptance standards

Parameter name Allowed error range

Antenna azimuth 5 Antenna down tilt 1

For any site not qualified, we should ask the project supervisor to correct it. If the unqualified

site is over 20% against total sites, the project supervisor should check all the sites again

and correct the unqualified ones.

The RF check report in this step covers the check items and results, whether the problem is

resolved.

4.3 Equipment Functional Test

The equipment functional test for selective sites must be done before the starting of the

service test depending on the analysis result of the pilot coverage test.

Different from 3. Equipment Functional Test, the test is cell-oriented and contains:

1. Solve the problems left over in Section 3, such as alarm caused by NODEB fault,

abnormal cell state and performance indicators degradation.

2. Perform the call setup test and PDP activation test in each cell, to ensure the service

function of the control plane and user plane in CS/PS domain is normal. The call

setup test can ensure the normality of the control plane and user plane in the CS

domain, while the PDP activation test can ensure the normality of the control plane

and user plane in the PS domain. And the Ec and Ec/Io received by MS should be

normal.


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3. Carry on a simple drive test to check the correctness of primary scrambling code

configuration (antenna connection).

The test report is required in this step.

Please refer to WCDMA RNO Equipment Functional Test Guideline. Now, the equipment is normal after the functional problems are resolved and we can begin

to solve the network performance problems.

4.4 Service Test and Analysis

To get information on the service coverage and to optimize the problems as access failure,

drop call, power control, handover and service quality. The test including the call setup test

and continuous call test of the target service, and the call setup test must contain MOC and

MTC. The test should be performed repeatedly to the position with problems to make sure

that the problem is repeatable.

Refer to the related part in WCDMA RNO Drive test Guideline

4.4.1 Test Route Determination

Determine the test area depending on the result of the pilot coverage test. For details, refer

to Here.

4.4.2 Load Simulator

Refer to Here

4.4.3 Data Analysis

The data analysis consists of:

1. analysis and solution for power control problems

2. analysis and solution for access failure

3. analysis and solution for drop call

4. analysis and solution for handover failure

5. analysis and solution for service quality related problems

For details, please refer to the corresponding guidelines.


The adjustment recommendations for service optimization are mainly focus on the cell

parameters.

1. Cell parameter adjustment

Refer to Here


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2. Cell parameter adjustment prediction

Refer to Here

4.5 Performance Indicators Optimization

After the pilot coverage test and service test, we should start to optimize the cells whose

performance indicators have not reach the requirements for a deployed network. For

example, to optimize the cells with congestion problems in busy hours,


It refers to the cell parameter adjustment

1. Cell parameter adjustment

Refer to Here

2. Cell parameter adjustment prediction

Refer to Here

4.6 Test for Special Areas

Make test plans for key areas and areas complained by subscribers.

Generally, a key area refers to a small district or indoors environment, such as:

Operators offices, residence of VIP Key hotels or entertainment location Government location Locations of high-benefit enterprises or group subscribers Locations tend to be cared by the operator, such as railway station or airport

For the analysis and solutions for such problems as access failure, drop call, handover

failure or service quality, refer to the corresponding optimization guideline.

Please refer to WCDMA RNO Drive test Guide

4.7 Cluster Optimization Summary

After the cluster optimization, the optimization leader (NO_PL) should summarize the

optimization process to output the following reports:

1. XXX Project XXX Cluster Description of Optimization process 2. XXX Project XXX Cluster Problem Record table 3. XXX Project XXX Cluster Problem Analysis report 4. XXX Project XXX Cluster Description of Test Data and test data files 5. XXX Project XXX Cluster Engineering Parameter Table (updated one after

optimization)


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6. XXX Project XXX Cluster Cell Parameter Table (updated one after optimization)

5 Whole Network Optimization Most problems of the existing network can be found and resolved by the adjustment during

the cluster optimization. However, there are some problems not located in the cluster

optimization or the problems whose adjustment may cause great influence, such problems

can be solved in whole network optimization stage. And the newly found problems in this

step need to be resolved too.

In addition, the whole network optimization should ensure that each performance indicators

from the whole network point of view meets the acceptance criteria after the optimization. As

for the adjustment fails to be implemented due to some practical restriction (for example:

adding new sites, cell parameters adjustment recommendation for equipments from other

vendors), we should prepare sufficient test data and reliable analysis report for it.

The optimization manager (NO_PM) is responsible for the entire network optimization.

5.1 Problems Summary, Analysis and Solution

Analyze the leftover problems which are not located and resolved in the cluster optimization

to make the specifically test plans.

Table-2 shows the summary of problems in cluster optimization, and the report and data to

be submitted: Table 2 Problem summary

Analysis report Data

Adjustment implemented

1) Problem analysis report, including: Problem description; Reason analysis; Adjustment suggestions; Optimization effect verification

Complete data corresponding to the analysis report: Original test data Worked data Adjustment

recommended

Adjustment not

implemented

1) Problem analysis report, including: Problem description; Reason analysis; Adjustment suggestions;

Complete data corresponding to the analysis report: Original test data Worked data

Problems located

Adjustment not recommended

1) Problem analysis report, including: Problem description; Reason analysis;


Problems not located 1) Problem analysis report, including: Problem description;


After finished this summary, reports and data, part optimization engineers of the project can

be released.

Then resolve leftover problems one by one.


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5.2 Whole network drive Test

Since many adjustments in this step will influence many cells, its essential to do whole

network drive test before the end of the whole network optimization. Its helpful to get

information on the optimization effect, to find and resolve new problems, to be ready for the

final customer acceptance test.

The principle of selecting the test route should be consistent with that in the customer

acceptance test.

The whole network drive test including pilot coverage test and service test.

6 Customer Acceptance and Report Output

6.1 Customer Acceptance

Following the acceptance plan made beforehand, the acceptance should be performed with

the participation of the customer, and the test record table of each item should be checked

and signed by test personnel from the customer side.

The XXX Acceptance Report should be based on the acceptance test data and be signed by the test participants both from HUAWEI side and the customer side.

6.2 Optimization Report Output

The XXX Optimization Report should be presented after the project passes the customer acceptance. The optimization report should include:

1. Project background introduction

2. Existing network status and optimization target

3. Acceptance criteria

4. Optimization process

5. Problem analysis and adjustment recommendation, and the effect for the implemented

part

6. Acceptance test and result

7. Leftover problems and suggestions from the optimization point of view. Predict the

traffic increase and the influence to network according to the traffic status before and

after the optimization. Predict the time point of next optimization.

8. Appendix: It is suggested to put all figures and tables of the test data in the appendix to

shorten the report body.

Besides the optimization report, the updated XXX Project Engineering Parameter table and XXX Project Cell Parameters Tableare required.


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6.3 Presentations and Customer Communication

The optimization manager (NO_PM) should prepare slides based on the optimization report

to communicate with the customer and to learn their ideas about this optimization or the

requirement for future optimization/expansion.

wcdma rno guideline

Documents

optimization tools

optimization quality

existing network

rno project leader

rno project manager

project preparation

process document

customized document