gsm wireless network planning method

GSM WIRELESS NETWORK PLANNING METHOD

2004 年 10 月 21 日

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CONTENT OF NETWORK PLANNING

Analysis of the operator’s status

Analysis of the operator’s developing environment

The goal of the operator’s developmentThe stratagem of the operator’s development

Market planning Network planning Finance planning

Network construction project

Transmission system planning

Core network planning

Wireless network planning

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WIRELESS NETWORK PLANNING

Wireless network planning

Wireless network planning target

Coverage target

Capacity target

Cost target

The number of base stations

Q1Link budget

The number of base stations

Q2

Erland capacity of a single cel

l

Parameters of base stations

Investment

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CONTENT OF PLANNING GSM WIRELESS NETWORK

COVERAGE TARGET ： Coverage

probability （ populace 、 geography ） RESULT ： The number of the stations Q1 、 Information

of the base stations.(location 、 altitude 、 power and antenna bearing)

CAPACITY TARGET ： The number of the subscribers 、 GOS RESULT ： The number of the base stations

Q2 、 Configurations of the channels.

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GSM WIRELESS NETWORK PLAN_coverage

Area classUrban;Suburban;Village;Open area ; Indoor;

Propagation model emendation Link budget Radio coverage of a single cell

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GSM WIRELESS NETWORK PLAN

PLANNING FLOW

Subscriber busy hourtraffic

Subscribers prediction

Overall trafficprediction

The ratio of traffics inthe every regions

The traffics in the everyregion

Configuration of theexisting wireless

network

The dimension of theplanned wireless

network

Anal yse of thetraffi c densi ty i nthe speci al areas

The pl an of the bi -frequency wi rel ess

network

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GSM WIRELESS NETWORK PLAN

The considered factors to make certain one subscriber busy hour traffic:Increase trends in system busy hour traffic ,one subscriber’s busy hour traffic and the relationship between subscriber increase and traffic increase within a year ；Traffic inrease brought by feast day,price policy and data services.

Busy hour traffic of one mobile phone

Analysis of the operator future policy

Unstable stability of the system busy

hour traffic

Fluctuation of the system busy hour

traffic

Busy hour traffic of one subscriber

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GSM WIRELESS NETWORK PLAN_capacity

target ： the number of base stations 、 channels configuration.

process ： Firstly, getting the total traffics by the predicted subscribers; secondly, analysing the total traffics into every regions; thirdly,getting the number of the base stations and the configuration of

the channels.

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SUBSCRIBER PREDICTION

业务量预测数

实际业务发展统计数据划数调查结果

构建业务量时间序列

运用统计软件，拟合时间序列曲线，进行趋势外推

市场容量预测

普及率预测

普及率法预测市场容量

市场容量增长速度预测

市场容量现状

增速法预测市场容量业务拓展

能力、网络支撑能力比较分析

市场占有率确定

自上而下式预测

自下而上式预测

存量市场预测

增量市场预测

多种市场占有率方法比选

Resul t of servi cespredi cti on

Statistics of ActualServices Development

Inquisitional Result inServices DevelopmentProgramming

Construct Time Sequenceof Portfolio

Apply Stat. Software, DraftSequence Curve of Time, CarryThrough Current Extrapolate

Anticipating inMarket Capability

Anticipating inPopularization Ratio

Anticipating inPopulation Amount

Method of PopularizationRatio in AnticipatingMarket Capability

Anticipating inRising Rate ofMarket Capability

Actuality of MarketCapability

Method of IncreaeingRate in MarketCapability Forecast

析

Anticipating inMarket Occupancy

FromupTodown

FromdownToup

Anticipatingin ReservesMarket

Anticipatingin IncrementMarket

CompareMethod inDiversified

MarketOccupancy

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SERVICE PREDICTION(from up to down ）

Predi cti on method

人口预测

移动用户总需求预测

市场占有率预测

茂名移动用户预测

分品牌、分区预测

Simple curve fit methodPopularization rate method Increase rate methodAnalogy methodRelay analysis method

Taking the factors intoaccount,such as the numberof the people,economics,etc.

Origin of increment anddeposit prediction method

Analogy method

Market orientation method

Population prediction resident

All mobile usersprediction in the region

Market occupancy rateprediction

Predictiondescription

Predictionprocedure

Subscribers predictionof the operator

Subscribers prediction inevery region

Indicating the operator’ ssubscribers proportion inthe whole market

Making certain three predictionresult:high,middle,low.

Analysis of the preconditionsof three predictions

Predictionmethod

The whole mobile phonemarket,including all theoperators in the region

Analysing the totalsubscribers of the operator

into every regions.

Time sequence method

Getting the number of theoperator’s subscribers,bythe market occupancy andall mobile users prediction

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SERVICE PREDICTION （ from down to up ）

Here the subscribers predicted respectively by the way of simple curve fit method、 popularization rate method-saturation rate method、 relay analysis prediction、 analogy method.

(ten thousand)

0. 0050. 00100. 00150. 00200. 00250. 00300. 00350. 00400. 00450. 00

2004年 2005年 2006年 2007年

conic fit prediction Cubic curve fit prediction Saturation rate method (60%)

Saturation rate method (55%) Saturation rate method (50%) Analogy method

relay analysis method

(ten thousand)

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Analysing the total traffics into every regions. 1 、 based on proportion of the traffics in existing network of every r

egion ； 2 、 statistics of relative increase rate in every region. 3 、 result ： proportion of traffics in network of every region in the

plan period.

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Analysis of feast traffics• purpose ： analysis of the peak traffics in every region to reserve some

redundant capacity for the peak traffic.• process ：

– 1 、 comparing the feasts peak traffics with the weekday peak traffics

– 2 、 ensuring the plan traffics to meet the most busy hour traffics of the plan period.

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Analysis of traffic density

The traffic density and traffic development in the maximum traffic density

area.

The maximum traffic density in the

end of the plan period.

Space between the base stations in the maximum

traffic density area.

The wireless network in the area could provide the maximum traffic in

the end of the plan period

GSM900/GSM1800bi-frequency wireless

network plan

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Traffics Analysis of the maximum traffic density area.• target ： to determine whether to introduce GSM1800 system• process ：

– 1 、 according to traffics statistics of about 3km2 area ， to get the increase trends of the traffic density in the area and the prediction on traffics density in the area within 3 years.

– 2 、 according to Statistics of the base stations in the area ， to get the average distance of the base stations ；

– 3 、 according to the bearable traffic density of the different wireless network,to determine whether to introduce the bi-frequency network.

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GSM wireless network construction

Request of the GSM wireless network

Subscriber prediction ； Subscriber traffics prediction ；

CONFIGURATION OF THE EXISTING WIRELESS NETWORK

The configurations of the base stations and the channels in every regions ； The ratio of the base stations for coverage in every regions ；The principle of GPRS dedicated PDCH configuration

The ration of half-rate traffics.

The dimension of the planned wireless network

The number of base stations in every regions ； The number of the frequencies in every regions ；The number of the base stations for coverage in every regions ；The number of the frequencies for coverage in every regions.

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Target ： transfering traffic into channels 。procedure ：

• 1 、 statistics of the cell parameters in every region,including the number of the base stations ,cells,channels etc. ；

• 2 、 to make sure the traffic of one channel in every region by looking up reference form ；

• 3 、 Dividing the traffics of the every region,educe the number of the voice channels 。

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purpose ： transfering channels into carriers and base stations.

process ：• 1 、 Considering the influence of BCCH/SDCCH,and GPRS dedicated P

DCH ；• 2 、 With the number of carriers in a cell of existing networks for a refe

rence, transfer voice channels into carriers. • 3 、 the total channels is divided by the number of channels per site in e

very region to get the number of the sites.• 4 、 compared with the number of the existing base stations,to estimate

whether the network arrive at the coverage target .

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GSM WIRELESS NETWORK PLAN_optimization

target ：Enhance use efficiency of network resource and improve

network quality of service. Resolve problem of the network coverage and the traffic

imbalance.

Wireless network optimization ：Optimizing base stations locationAdjusting sites typeAdjusting antennasAdjusting carriers to balance the assigned traffic

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GSM WIRELESS NETWORK PLAN_items

GSM networkdi mensi on

Subsi di ary equi pmentof GSM wi rel ess

network

Mai n equi pment ofGSM wi rel ess

network

GSM wi rel essnetwork

opti mi zati on

Power suppl y, i rontower,ai r

condi ti on,etc.TRU,frameworks

Road coverage, i ndoorcoverage,etc.

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GPRS wireless network plan

The GPRSstatistics

Throughoutof onePDCH

Throughout ofGPRS system

Ability ofone RPP

RPP demandin the plan

period

GPRS wirelessnetwork

dimension

Configuration ofthe existing

wireless network RPPconfiguration

principle

Throughoutof one PDCH

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Plan method

Short message center plan

Analysis ofsubscriber

behavior bySM statistics

Short messagemodel in the plan

period

Concentrationcoefficients of busy hour

and busy day

Gross shortmessages

Demand ofSMC BHSM

Dimension ofSMC BHSM

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Finance plan

Plan method

Management performanceMarket prediction Unit price,ARPU

prediction

Incomingprediction

Cost budget

The total investment

Analysis of investment andincomingsAnnual investments

of the everyspeciality network.

Analysis of the coststatus

Fi nance pl an

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gsm wireless network planning method

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