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CDMA Network Optimizati

Mini Cluster 05 at Frequen800 MHzfor

SmartFren ProjectBy

KRIST ARISTOTELIUS

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INTRODUCTION

As a subcontractor company PT. GCI INDONESIA works in gnetwork optimization service for telecommunication companies using drive test method. There are two kinds ofservice that are given according to theirs coverage, single siteand cluster drive test. Cluster drive test involving more radioproblem and analysis than single site drive test. Especially

contour issues are not the dominant factor that causing Thatsthe reason why I choose cluster optimization as the topresentation.

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GOALS

The audience get some information about of CDMA radioptimization activities at PT. GCI INDONESIAsenvironmentfor MC 05.

The audience understand about some of CDMA radio netEVDO) problems according to the quality parameters in Mable to analyzing the problems to decide an appropriateorder to improve the network performance.

The audience understand about basic concept of CDMA.

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BASIC THEORY OF CDMA

All CDMA users occupy the same frequency at the sameaccess/use the channel. Frequency and time are notdiscriminators.

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BASIC THEORY OF CDMA

CDMA operates by using CODING to discriminate between usused for sperads the spectrum of signal too. This coding calleRandom Noise (PN Code) that contain high speed digital bits

non polar.

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BASIC THEORY OF CDMA

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BASIC THEORY OF CDMA

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Interference on CDMA Network

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CDMA RF Network Optimization

Is a process to improve the performance of radio ncoverage, quality, and capacity side to achieve radioperformance criteria. RF Network optimization must periodically to balance the development of network and complaint from the customer because of drop call, bad qucall failed, no signal, long call setup , etc. Tuning the BTS p

values optimally, antena tilt (mechanical and electrical), and power settings are the ways to optimize the performaRF Network.

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CDMA RF QUALITY PARAMETER

1. EVDO (Data Only) Parameters

Best C/I

Best Rx Power

PER (Packet Error Rate)

FWD TCP Throughput

2. 1X (Voice) Parameters

Best Ec/Io Rx Power

FFER (Frame Error Rate)

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Relation between Optimization and Driv?

Drive Test is a method of optimization. Drive Test is used forand examine RF performance parameter to get the descriptradio network condition.

According to the measurement data and examination, the eanalyze the problem that caused bad spot on the radio netwthen decide an action plan to solve the problem. So, the badwould be clear and the radio network performance is upgra

Called Drive Test because the measurement process is donecar that move along route that is needed.

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Type of Drive Test

Single Site Drive Test Cluster Drive Test

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Drive Test Tools (Hardware)

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Drive Test Set Up (Hardware)

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Drive Test Tools (Software)

CNT1-C (for Testing)

CNA1-C (for Analyzing)

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Test Items

Long Call 1X 800 MHz Continuous Download EVDO 800 MHz

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Actual DT Routes and Site Distribution 05

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Drive Test Set Up (Software)

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CNA1-C

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MC 05 Baseline Drive Test (EVDO

Best C/IAve

ValueM

Va

Best C/I 3.41 -21.1

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MC 05 Baseline Drive Test (EVDO

Best Rx PowerAve

ValueBest RX Power -59.65 -

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MC 05 Baseline Drive Test (EVDO

PER

Ave

Value VPER 1.90

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MC 05 Baseline Drive Test (EVDO

FWD TCP ThroughputAve

ValueMin

ValueFwd TCP Throughput 802.16 0

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MC 05 Baseline Drive Test (1X)

Best Ec/Io

Ave

ValueMin

ValueBest Ec/Io -6.95 -33.06

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MC 05 Baseline Drive Test (1X)

Rx Power

Ave

ValueMin

ValueRX Power -74.43 -101.29

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MC 05 Baseline Drive Test (1X)

FFER

Ave

ValueMin

ValueF-FCH FER 1.74 0

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Bad Spot Analyzing and Action Pla

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Bad Spot Example and Action Pla

DO 800 MHz

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Bad Spot Example and Action Pla

1X 800 MHz

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MC 05 Optimization Drive Test (EVD

Best C/I

Ave

ValueMin

ValueMax

ValueBest C/I 4.53 -21.07 14.70

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MC 05 Optimization Drive Test (EVD

Best Rx PowerAve

ValueMin

ValueMax

ValueBest RX Power -58.94 -87.68 -31.55

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MC 05 Optimization Drive Test (EVD

PER

Ave

ValueMin

ValueMax

ValuePER 1.13 0 100

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MC 05 Optimization Drive Test (EVD

FWD TCP ThroughputAve

ValueMin

ValueFwd TCP Throughput 584.74 0

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MC 05 Optimization Drive Test (1X

Best Ec/Io

Ave

ValueMin

ValueMax

ValueBest Ec/Io -6.70 -29.70 -2.45

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MC 05 Optimization Drive Test (1X

Rx Power

Ave

ValueMin

ValueRX Power -66.89 -95.25

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MC 05 Optimization Drive Test (1X

FFERAve

ValueM

Valu

F-FCH FER 1.04 0