87608639 13 Introduction to GENEX Nastar

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Huawei GENEX Series Introduction to GENEX Nastar for WCDMA www.huawei.com

HUAWEI TECHNOLOGIES CO., LTD.

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Overview

Optimization Procedures Main Functions

Application Cases

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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


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 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.


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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. BAM

Data Collection

Optimization Result

GENEX Nastar WCDMA

Network HUAWEI TECHNOLOGIES Co., Ltd.

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Overview


Application Cases


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Original data

Tasks

Data filtering

1) Group the cells

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

2) Analyzing RNC and clusters

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

3) Analyzing the worst cell

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

4) Filtering by KPI To filter the abnormal KPI counter in top N worst cells Data mining

To analyze the counter that cause bad KPI

5) Locate the network problem

Identify the problem types

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

Optimized network


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Overview


Application Cases


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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 Query Performance Report CHR Analysis


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Performance Query Performance Query provides flexibility query means to find any statistics counter that you want. 1. Default theme analysis 2. Customized theme analysis

Note：A theme analysis is a table that composed of various correlated traffic statistics counters.


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How to make default theme analysis For example: TOP N cell call drop analysis Step1: right click “TopN Cell Call Drop Analysis”，select “Execute”


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


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


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Step4: output the sheet to excel to further analysis


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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 report RNC weekly report RNC daily report In the Nastar WCDMA, we can also edit the report with the flexible report interface.


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Intra-Frequency Neighbors Optimization Based 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 query Neighbor optimization intelligent parse Neighbor SHO record query Neighbor missing TopN query Neighbor optimization report

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


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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 statistics Cell wireless quality analysis Pilot pollution on map Pilot 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. HUAWEI TECHNOLOGIES Co., Ltd.

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Overview


Application Cases


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Nastar WCDMA Main View Main View

Property

Function


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Nastar TransData We use Nastar TransData to manage project and load data. Build new project


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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


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Nastar Project Nastar WCDMA is using for querying and analyzing. You can use only one project in the meanwhile.


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Data Load Data Type：From the BAM Server, The format of the data is *.bz2 All the RNC Data should use Nastar TransData to load in.

Guild of data load Load Performance data

Choose “Edit Task”


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Guild of data load (cont.) Load Performance data

Choose the path of the data

Start to load


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Guild of data load (cont.) Load MML data Load CHR data Load IOS data Load RTWP data Similar with loading Performance data


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Load Engineering data Engineering 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


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

Low RRC setup rate


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

Worst Cells


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

Locating Problems: The RRC rejection is due to power congestion.


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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.


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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.

Call drop rate exceeds the threshold

Page 1: KPI statistics


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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)


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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 the engineering parameters to improve the coverage, for example, to adjust the down tilt and azimuth of the antenna. If the adjustment to antenna cannot remove the coverage hole, we recommend to add new sites or repeaters.


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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.


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Thank you www.huawei.com

87608639 13 Introduction to GENEX Nastar

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