10 introduction to genex nastar

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Huawei GENEX Series Introduction to GENEX

Nastar for WCDMA

HUAWEI TECHNOLOGIES Co., Ltd. HUAWEI Confidential

Optimization Procedures

Overview

Main Functions

Application Cases


GENEX Nastar WCDMA is an intelligent and integrated tool developed by Huawei Technologies Co., Ltd. to optimize the radio network performance.

The Nastar WCDMA is capable of locating the network troubles through data filtering and data excavation. The Nastar WCDMA satisfies the in-depth demands proposed of the network operators through these means.

The Nastar WCDMA can:

Import and analyze the following data:

- Configuration data- Performance data- Call Historical Record (CHR) data- IOS and RTWP data

Conduct various theme analysis on

network performance.

Display the KPI on the map window.

Query the performance report and the

configuration data

Optimize the intra-frequency neighbors

Conduct pilot pollution analysis


Feature

The Nastar WCDMA offers a panoramic view of network performance by

locating and analyzing the network troubles.

Application

Now, the GENEX Nastar WCDMA is widely used in commercial and pilot

offices in the WCDMA networks around the world.

The routine network monitoring system is also established to carry out

the overall control on all commercial offices around the world.


Network

BAM

GENEX Nastar WCDMA

Optimization Result

Data Collection

GENEX Nastar WCDMA in the Network

Client version: It can be used flexibly in the network to meet the engineer’s personal demand for network optimization.

Server version: A regional monitoring center, which can be used by every branch in this region.



Overview

Main Functions

Application Cases


Original dataOriginal dataOriginal dataOriginal data

Optimized networkOptimized networkOptimized networkOptimized network

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TasksTasksTasksTasks

1) Group the cells1) Group the cells

2) Analyzing RNC and 2) Analyzing RNC and clustersclusters

3) Analyzing the worst cell3) Analyzing the worst cell

4) Filtering by KPI4) Filtering by KPI

Divide hot spots and define the clutterDivide hot spots and define the clutter in the digital map in the digital map as required. as required.

According to the performance themes in Nastar, to According to the performance themes in Nastar, to know the overall performance of RNC and clusterknow the overall performance of RNC and cluster

To find the top N worst cells by the function of second To find the top N worst cells by the function of second analyze or further cluster break down.analyze or further cluster break down.

5) Locate the network problem5) Locate the network problem

6) Tracing the original data6) Tracing the original data

To filter the abnormal KPI counter in top N worst cellsTo filter the abnormal KPI counter in top N worst cells

To analyze the counter that cause bad KPITo analyze the counter that cause bad KPI

Identify the problem types Identify the problem types

According to problem types and original data trend According to problem types and original data trend figure to find the root trouble and give solution scheme. figure to find the root trouble and give solution scheme.



Overview

Main Functions

Application Cases


Powerful Performance Analysis

The Nastar WCDMA offers more than 30 types of theme analysis on the following major network issues, including:

Performance Query TOP N QueryPerformance Report CHR Analysis


Performance Query provides flexibility

query means to find any statistics

counter that you want.

1. Default theme analysis

2. Customized theme analysis

Performance Query

Note： A theme analysis is a table that composed of

various correlated traffic statistics counters.


How to make default theme analysis

For example: TOP N cell call drop analysis Step1: right click “TopN Cell Call Drop Analysis”， select “Execut

e”


Step2: select the begin data and end data and time statistics granularity in Time Range sheet


Step3: select the query object, it includes 2 types which one is network element the other

is network group. Click OK


Step4: output the sheet to excel to further analysis


Comprehensive Performance Report

The Nastar WCDMA provides a panoramic view of the network performance through the routine network monitoring.

The following three reports contains the regular reports:

Network monitoring reportRNC weekly reportRNC daily report

In the Nastar WCDMA, we can also edit the report with the flexible report interface.


Intra-Frequency Neighbors OptimizationBased on the analysis of CHR and performance data, the Nastar WCDMA can find the missing and redundant neighbors, and take effective measures to solve them in order to guarantee the network mobility.

The Nastar WCDMA displays the troublesome areas on the map.

The main features in the Nastar WCDMA is as follows:Neighbor missing record queryNeighbor optimization intelligent parseNeighbor SHO record queryNeighbor missing TopN queryNeighbor optimization report

√Display the troublesome areas on the map. Locate the network troubles directly, and thus relieve the burden of drive test.


Solutions to Pilot Pollution

The pilot pollution analysis is based on the analysis of the configuration parameters, CHR, and the engineering parameter. The analysis result can be displayed on the map or exported for further analysis.

For pilot pollution analysis, the Nastar WCDMA provides the following functions:

Pilot pollution area statisticsCell wireless quality analysisPilot pollution on mapPilot pollution analysis report

√The pilot pollution and coverage leak can be found through background analysis. In this way, the optimization is greatly improved and has more centralized targets.



Overview

Application Cases

Main Functions


Nastar WCDMA Main View

FunctionFunction

Main ViewMain View PropertyProperty


Nastar TransData

We use Nastar TransData to manage project and load data.

Build new project


Nastar TransData

We use Nastar TransData to manage project and load data.

Manage projects

The name of the project which was backup should be same with the restored project


Nastar ProjectNastar WCDMA is using for querying and analyzing.

You can use only one project in the meanwhile.


Data Load

Data Type： From the BAM Server, The format of the data is *.bz2All the RNC Data should use Nastar TransData to load in.

Guild of data loadLoad Performance data

Choose “Edit Task”


Guild of data load (cont.)

Load Performance data

Start to load

Choose the path of the data


Guild of data load (cont.)

Load MML dataLoad CHR dataLoad IOS dataLoad RTWP data Similar with loading Performance data


Load Engineering dataEngineering data is mainly used for neighbor cell optimization and pilot pollution analyzing.

Matching all the format of the property of the Engineering data

Geography Display


1. Check the historical trend of RRC setup through RRC setup analysis.

Low RRC setup rate


2. List TopN Worst Cells Concerning RRC Setup Through Second Query.

Worst Cells


3. Conduct Second Query on the Worst Cells to find Reasons for RRC Rejection.

Locating Problems:

The RRC rejection is due to power congestion.


4. Solution

The reasons for RRC setup rejection due to resource congestion.

RRC_REJ_POWER_CONG_CELL ： In this case, the RRC setup rejection is due to

the power congestion. It is means the configuration of CAC parameters should be

considered whether it is reasonable, if this indicator is always high, it is means that the

cell load reaches the threshold. The network needs expansion or balancing the load.


1. Right-click on the RNC Daily Report and choose the Execute option.

2. Set the date in the Generate Performance Report dialog box. To generate the daily report, the begin date should be as same as the end date.

Page 1: KPI statistics

Call drop rate exceeds the

threshold


3. Focus the mains reasons of CS call drop on the Top10 worst cells.

RNC releases the RAB, which is triggered by the RF failure in CS domain (synchronization failure on the uplink)


4. Solution

In this case, we can find the main reason of CS call drop is due to UL synchronization

failure. It should be caused by some problems of coverage or neighbour missing or

abnormal handover parameters, we recommends to check these.

If the problems were still exist after checking all parameters, the next step is to analyze t

he engineering parameters to improve the coverage, for example, to adjust the down tilt a

nd azimuth of the antenna.

If the adjustment to antenna cannot remove the coverage hole, we recommend to add ne

w sites or repeaters.


5. After the optimization, generate the RNC Weekly Report to check the KPI performance.

After the optimization on the worst cells, the call access rate in the CS or PS domain increases and call drop rate decreases.

Thank youwww.huawei.com

10 introduction to genex nastar

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