WCDMA RNP Radio Network Planning Operation Guidance-20050526-A-1.0

WCDMA RNP Radio Network Planning Operation Guidance For internal use only

Document code

Product name

Target readers Product version

V100R001

Edited by Document version

WCDMA RNP Radio Network Planning

Operation Guidance

For internal use only

Prepared by URNP-SANA Date 2003-04-23Reviewed by DateReviewed by DateApproved by Date

Huawei Technologies Co., Ltd.

All rights reserved

2004-07-09 All rights reserved of 43


Revision Record

Date Revision version Change Description Author2003/04/23 1.00 Initial transmittal Wang Mingmin



Table of Contents

1 Radio Network Planning Process Overview............................................................................81.1 Role Definitions..................................................................................................................8

1.1.1 Client............................................................................................................................81.1.2 Account manager.........................................................................................................81.1.3 Product Manager..........................................................................................................81.1.4 Radio Network Planning Manager...............................................................................81.1.5 Chief of Radio Network Planning Group......................................................................81.1.6 System Simulation Personnel......................................................................................91.1.7 Network Planning Survey Personnel............................................................................91.1.8 Site Test Personnel......................................................................................................91.1.9 Engineering Survey Personnel.....................................................................................91.1.10 R&D Product Support Personnel......................................................................10

1.2 Process Diagram.............................................................................................................101.2.1 Radio Network Nominal Planning Process................................................................111.2.2 Radio Network Cell Planning Process.......................................................................12

1.3 Input Demand...................................................................................................................121.3.1 Target Area Information.............................................................................................121.3.2 Network Construction Target.....................................................................................131.3.3 Network Scale and Construction Stage Planning......................................................131.3.4 Site Information Available from Operators.................................................................13

1.4 List of Output Documents.................................................................................................141.5 Work Guide......................................................................................................................14

2 Project Preparation Stage......................................................................................................152.1 Network Planning Team Structure...................................................................................152.2 Work Scheme Preparation of Planning Stage..................................................................152.3 Basic Project information.................................................................................................162.4 Acquisition of Digital Maps...............................................................................................16

2.4.1 Digital Maps for Planning...........................................................................................162.4.2 Digital Maps in Mapinfo Format.................................................................................17

3 WCDMA Network Nominal Planning Operation Guide..........................................................183.1 Prepare Network Construction Strategy and Periodic Planning Targets.........................183.2 Definition of Network Construction Target.......................................................................18

3.2.1 Network Service.........................................................................................................193.2.2 Network Coverage Range and Coverage Quality......................................................203.2.3 Network User Capacity..............................................................................................223.2.4 Upper Limit of Cell Loading Target............................................................................22

3.3 Initial Site Selection..........................................................................................................223.3.1 Site Survey of Local Environments............................................................................223.3.2 Propagation Model Calibration (Optional)..................................................................233.3.3 Acquisition of Candidate Site Information for Operators............................................233.3.4 Initial Site Selection....................................................................................................24

3.4 System Simulation and Site Adjustment..........................................................................303.4.1 System Simulation.....................................................................................................303.4.2 Site Adjustment..........................................................................................................30

3.5 Nominal Planning Report Output of Radio Network.........................................................314 WCDMA Network Cell Planning Operation Guide.................................................................324.1 Site Survey & Frequency Scanning.................................................................................32

4.1.1 Search Ring of New Site............................................................................................334.1.2 Site survey & Frequency Scanning............................................................................34

4.2 Site Selection...................................................................................................................364.2.1 Radio Propagation......................................................................................................374.2.2 Construction...............................................................................................................374.2.3 Commerce..................................................................................................................37

4.3 System Simulation...........................................................................................................382004-07-09 All rights reserved of 43


4.4 Report Output...................................................................................................................384.4.1 Location Area and Routing Area Planning.................................................................394.4.2 RNC Area Planning....................................................................................................394.4.3 Neighbour Cell Planning............................................................................................394.4.4 Frequency Planning...................................................................................................394.4.5 Scramble Code Planning...........................................................................................394.4.6 Allocation of Channel Power......................................................................................394.4.7 Handover Parameter Planning...................................................................................404.4.8 Admission Parameter Planning..................................................................................40

5 Appendix................................................................................................................................415.1 Illustrations.......................................................................................................................41



List of Tables

Table 1 Usual services and corresponding bearer modes...........................................................19Table 2 Typical requirements of area coverage probability in different environments.................21Table 3 Typical requirements of penetration loss margin in different environments....................21Table 4 Recommended definition method of flag group...............................................................26Table 5 Calculation formulae of distance between sites D and typical antenna level half-power angles under different station types............................................................................................27

Table 6 Requirements of antenna installation heights in different environments.........................28Table 7 Requirements of lowest pilot receiving levels corresponding to continuous coverage of lcd64kbps service.......................................................................................................................30



List of Figures

Figure 1 Radio network nominal planning process......................................................................11Figure 2 Radio network cell planning process.............................................................................12Figure 3 Typical structure of a radio network planning team.......................................................15Figure 4 Initial site selection process...........................................................................................25Figure 5 Omni type & 3-sector centre excitation type..................................................................27Figure 6 3-sector apex-single excitation type (clover type) & 6-sector type................................27Figure 7 Site survey process........................................................................................................33



WCDMA RNP Radio Network Planning Operation Guidance

Key words: WCDMA, radio network planning (RNP), network planning, operation guide,

nominal planning, cell planning, process

Abstract: This document is an operation guide to WCDMA radio network planning

process of Huawei Technologies Co., Ltd., and it will serve as specifications for

the network planning engineers in commercial network construction of WCDMA.

List of abbreviations:

Abbreviation Full spellingRNP Radio Network Planning



1 Radio Network Planning Process Overview

1.1 Role Definitions

In the planning process of a commercial network, roles that may participate include:

1.1.1 Client

Role name: Client

Department: Operator XXX Dept.

Role No.: OPRTR

Role description: Responsible for the determination of network construction requirements, he

is the actual owner of the future network, and the judge of planning reports and network quality.

1.1.2 Account manager

Role name: Account manager

Department: Marketing Dept.

Role No.: MKTAC

Role description: Responsible for the arrangement of communications with clients

1.1.3 Product Manager

Role name: Product manager

Department: Marketing Dept.

Role No.: MKTPD

Role description: Organizer of projects

1.1.4 Radio Network Planning Manager

Role name: Radio network planning manager

Department: Network Planning Project Group of Technology Support Dept. /Radio network

System Dept.

Role No.: NP_PM

Role description: Organizer of the total work of network planning, responsible for the total

planning results.

1.1.5 Chief of Radio Network Planning Group

Role name: Chief of radio network planning group

Department: Network Planning Project Group of Technology Support Dept. /Radio Network

System Dept.

Role No.: NP_PL



Role description: Network planning principal of sub-projects. This role can be taken over by

the NP_PM when the project is in a small scale.

1.1.6 System Simulation Personnel

Role name: System simulation personnel


System Dept.

Role No.: NPSIM

Role description: On prerequisite that input requirements are confirmed, responsible for

system simulation in the planning process and responsible for the accuracy of the simulation

results.

1.1.7 Network Planning Survey Personnel

Role name: Network planning survey personnel


System Dept.

Role No.: NPSVY

Role description: Under the direction of the panning manager, to accomplish site surveys,

such as, frequency scanning test, site survey and so on, and responsible for output of Site Survey

Report, Frequency Scanning Test Report.

1.1.8 Site Test Personnel

Role name: Site test personnel


System Dept.

Role No.: NPDRV

Role description: Under the direction of the panning manager, to accomplish route test data

collection, traffic statistics collection, etc.

1.1.9 Engineering Survey Personnel

Role name: Engineering survey personnel

Department: Engineering Survey Project Group of Technology Support Dept.

Role No.: EGSVR

Role description: To accomplish site surveys via cooperating with the network planning

survey personnel.

1.1.10 R&D Product Support Personnel

Role name: R&D product support personnel

Department: R&D Dept.



Role No.: RDSPT

Role description: To assist in site problem location, and responsible for answering problems

related to products.

1.2 Process Diagram

The integrated radio network planning process is composed of two successive stages:

Radio network nominal planning stage1

Radio network cell planning stage

Radio network nominal planning is the preliminary planning of the future network in the early

stage of a project before site survey is carried out. The nominal planning report could be used for

the communications in the early stage of the project and for the cost estimation during

preparation of the contract.

In the radio network cell planning stage, site survey and verification should be carried out on

the selection of sites to identify each cell’s engineering parameters (which provides a guide to the

project construction) related to network planning; verify the cell parameter settings and planning

effect through simulation. The output report is the final scheme of the radio network planning that

may guide the project construction.

1 In extensive rural area, the subscriber distribution is subject to terrain and thus of much difference with the assumed uniform distribution applied in dimensioning process. In other words, the network in rural area should cover isolated spot, such as villages and small towns, which are connected together and to other areas with roads and freeways. So the rural area should be divided and the dimensioning should be applied village by village, town by town and road by road.



1.2.1 Radio Network Nominal Planning Process

Figure 1 Radio network nominal planning process


huangsimin9800, 01/03/-1,

Estimation ->Dimensioning; Available site -> Candidate site; Emulation -> Simulation


1.2.2 Radio Network Cell Planning Process

Figure 2 Radio network cell planning process

1.3 Input Demand

1.3.1 Target Area Information

In respect with the information of an area to be covered in the planning, personnel should

acquaint themselves with it through maps, networks and markets. The information includes:



1. The area, population and economy

2. Distribution of clutters and land forms

3. Client information and market conditions

1.3.2 Network Construction Target

Network construction target includes the requirements of:

1. Network services

2. Network coverage range and coverage quality

3. Network capacity

4. Upper limit of cell loading target

If the commercial network planning is started from the project contract, the network

construction target should be determined.

If it is the planning process before the project contracting process, communications with the

client is necessary. Export it in a formal document, and let the client determine it.

1.3.3 Network Scale and Construction Stage Planning

If the commercial network planning is started from the project contract, the network

construction scale and construction stage planning can be determined according to the project

contract.

If it is the planning process before a project contract is concluded, the network construction

scale can be obtained through network dimensioning process according to the network

construction target. Construction stage planning is subject to market prediction and network

construction strategy, so while determining matters in this aspect, personnel from product lines

and the marketing department should join hands in the determination; communications should be

performed with operators as sufficiently as possible, guide should be offered together with the

solutions of Huawei, so as to resolve the related problems, bring forth competitive schemes and

obtain the recognition of the clients, and provide a guide to subsequent planning work.

1.3.4 Site Information Available from Operators

For 2G operators, the application of existing 2G sites should be considered for new networks

to reduce network construction cost to the minimum extent. Detailed information on 2G sites

should be available from operators if possible.

Some of new mobile operators own the assets (including office buildings, equipment rooms,

business departments, access points, etc.). The information should be available from these

operators.



1.4 List of Output Documents

1） XXX Project Network Dimensioning Report

2） XXX Project Construction Demand Information Collection Sheet

3） XXX Project Environment Survey Report of Target Planning Area

4） XXX Project Propagation Model Calibration Report

5） XXX Project Network Nominal Planning Report

6） XXX Project Network Planning Report

7） XXX Project Network Planning Site Survey Report

8） XXX Project Electromagnetic Interference Test Report

9） XXX Project Engineering Parameter Sheet

10） XXX Project Summary of Cell Parameters Related to Network Planning

1.5 Work Guide

1） WCDMA RNP Digital Map Type Selection Guide

2） WCDMA RNP Digital Map Acceptance Operation Guide

3） \WCDMA RNP Operation Guide to Conversion of Vector Data to mif File

4） WCDMA RNP Model Baseline of Data Service Related to Market

5） WCDMA RNP Special Study on Data Service Model Analysis

6） WCDMA RNP Operation Guide to Traffic Density Distribution Prediction

7） WCDMA RNP CW Test Guide

8） WCDMA RNP Propagation Model Calibration Data Analysis Guide

9） WCDMA RNP Enterprise V4.x Multi-NodeB Import Operation Guide

10） WCDMA RNP Antenna Type Selection Guide

11） WCDMA RNP Standard Propagation Model Parameters of Various

Environments

12） WCDMA RNP Enterprise Planning Software Users’ Guide

13） WCDMA RNP Enterprise Parameter Setting Guide

14） WCDMA RNP NodeB Network Planning Survey Guide

15） WCDMA RNP Electromagnetic Interference Test Guide

16） WCDMA RNP Paging Area Planning Guide



17） WCDMA RNP RNC Area Planning Guide

18） WCDMA RNP Scramble Code Planning Guide



2 Project Preparation Stage

2.1 Network Planning Team Structure

The typical structure of a radio network planning team for a project is as follows:

Figure 3 Typical structure of a radio network planning team

For the function of each role and the definition of responsibility, refer to the description in

Section 1.1.

For projects of large scale (over 100 sites), divide it into multiple sub-project according to the

geographical areas. The division principle of the target areas of project planning is to minimize

the influence among various sub-projects.

The sub-project division is carried out by the network planning manager (NP_PM) who is

also responsible for the coordination between various sub-projects in the planning stage.

2.2 Work Scheme Preparation of Planning Stage

After the radio network planning project team is established, the radio network planning

manager (NP_PM) will be responsible for the preparation of project work scheme.

In the work scheme, what should be specified includes: role candidate, time schedule of

each stage and output requirement.


RNP ManagerNP_PM

RNP Team Leader - 1 RNP_PL

System Simulation PersonnelNPSIM

NP survey personnelNPSVY

Site test personnelNPDRV

RNP Team Leader - N RNP_PL

System Simulation PersonnelNPSIM

NP survey personnelNPSVY

Site test personnelNPDRV

Engineering survey Personnel

EGSVY

Engineering survey Personnel

EGSVY

………………


2.3 Basic Project information

Network planning is closely related to practice. To output the optimum and reliable planning

scheme, it is necessary to comprehend the target planning areas and the client requirements.

Before a project planning is started, the network planning personnel, especially the manager

and the team leader of the radio network planning project (NP_PM & NP_PL) should search and

learn information the following information of the target planning areas.

1. Size of area, population and economy

Generally, the information about area size, population and economy can be obtained through

the local annals, administrative/tourist maps and Internet.

Information about population and economy includes the number of population, administrative

area, annual output value, income per capita, etc.

If detailed population distribution and density data can be obtained in this stage, it will be

valuable references for the correct setting of traffic distribution in the successive stage of system

simulation.

2. Clutter & terrain distribution

Clutter and terrain distribution includes the information about building distribution and height

variation of terrain.

If digital maps are available, the above-mentioned information can be obtained through the

digital map statistics.

If not available, the above-mentioned information should be obtained by means of other

methods (site survey and local personnel).

3. Client & market

Client and market information that have to be comprehended includes:

Names of local operators (2G & 3G)

Market shares of client operators

If possible, the following information should be comprehended:

Number of network subscribers of Client 2G/3G, ARPU

Number of network subscribers of competitors of Client 2G/3G, ARPU

Generally, the above-mentioned information can be obtained from account manager

(MKTAC) / product manager (MKTPD). Furthermore, some information related to the listed

operators can be obtained from their financial reports.

2.4 Acquisition of Digital Maps

2.4.1 Digital Maps for Planning

Digital maps are necessary for the nominal planning that is based on system simulation.



To avoid repeated procurements which will lead to wastes, find out existing digital maps of

Huawei through the assets library first, and verify the dates corresponding to the map information.

Generally, the digital map information date (the satellite photo date) is valid within two years;

otherwise the digital map information should be updated. For some cities with few constructions,

on the premise that the environments vary little, update period over two years is acceptable.

If map suppliers have the digital map of the target area, the supply period is generally within

2 weeks; if the map needs to be prepared, the supply period will be no less than 4 weeks, and the

procurement electronic stream takes 2 weeks. Therefore, once a project is started, purchase the

digital maps as early as possible and care for the development of the electronic stream.

The accuracy of 20m is usually adopted for common city digital maps. For planning of local

networks, the accuracy of 50m can be adopted to reduce the cost. For the specific indexes

verification of digital maps, refer to WCDMA RNP Digital Map Type Selection Guide.

If allowed, satellite photos, site surveys and administrative maps can be used to inspect the

reliability of digital maps. For the specific methods, refer to WCDMA RNP Digital Map

Acceptance Operation Guide.

2.4.2 Digital Maps in Mapinfo Format

Digital maps in Mapinfo format are not mandatory in planning process, but they are helpful in

site works, such as, drive tests and survey.

If users have Mapinfo digital maps, borrow them from users to reduce project costs if

possible.

For small projects, digital maps can be self-prepared through the following methods; it is

unnecessary to purchase them:

1. Output vector data of digital maps, for the specific methods, refer to \WCDMA RNP

Operation Guide to Conversion of Vector Data to mif File;

2. For digital maps, rectify them after image capture is displayed in the screen;

3. For paper maps, rectify them after being scanned.



3 WCDMA Network Nominal Planning Operation Guide

3.1 Prepare Network Construction Strategy and Periodic Planning Targets

If the commercial network planning is started from the project contract, operators have

defined the network construction strategy and the staged planning target already, so the planning

should follow the project contract.

For the planning process prior to the contract preparation, operators usually have not any

clear construction ideas. In this case, cooperate with the product manager (MKTPD) and

customer manager (MKTAC), consider the market situations and analyze operators’ demand to

prepare optimum solutions and guiding strategies on behalf of operators. And then define the

network construction strategies and staged planning targets together with customers through

visits and technical exchanges.

For operators that have 2G networks, the early-stage network construction strategy is more

likely that: adopt new WCDMA network in hot spot areas/big cities to provide characteristic data

services with good returns, and continue to provide universal coverage voice service and low rate

service through dual-mode UEs and inter-system handover on GSM/GPRS/EDGE networks. And

then, extend the coverage range of WCDMA network to achieve the target of universal coverage

according to the market development conditions. For operators that apply this strategy, the early

stage network construction should be in hot spot areas to provide high-quality data service

coverage.

For operators that have not any 2G networks, the strategy is more likely that: make full use of

broad coverage measures in early stage of the network construction, so as to establish the

universal coverage that is at least to town with minimum costs; and then eliminate blind zones

and extend the capacity through cell splitting. For operators that select this strategy, continuous

voice services and low rate data services are the majority coverage target of the network

construction in the early stage, and the coverage quality is not required too high.

Network construction strategy influences directly preparation schemes of staged network

construction and network construction determination which will be described in the following

section. In this stage, planning engineers should coordinate with the market personnel positively

and provide support data to guide customers, and to bring forth competitive solutions.

3.2 Definition of Network Construction Target

The total requirements for network construction target include:

1. Network service

2. Network coverage range and coverage quality



3. Network capacity

4. Upper limit of cell loading target

If the commercial network planning is started from the project contract, some total quality

requirements will generally be defined in the project contract; however, there are still some

unspecified details, such as, coverage requirements of specific areas, possible expression

ambiguity and so on. These should be specified through communications with operators

(OPRTR).

For the planning process prior to project contract preparation, operators usually have not any

clear construction ideas. In this case, cooperate with the product manager (MKTPD) and

customer manager (MKTAC), consider the market situations and analyze operators’ demands to

prepare optimum solutions and guide strategies on behalf of operators. And then define the

network construction target together with customers through visits and technical exchanges.

In this stage, radio network planning personnel manager (NP_PM) should fill XXX Project

Construction Demand Information Collection Sheet to make verification to operators, which will

taken as the base of the successive work.

3.2.1 Network Service

1. Service type and bearer mapping relation

Service and corresponding bearer mode to be supplied for network to be established.

Currently, usual services and corresponding bearer modes are listed in the following table:

Table 1 Usual services and corresponding bearer modes

UL DL

Voice AMR 12.2kbps AMR 12.2kbps

Email / MMS UDD 64kbps UDD 64kbps ~ 384kbps

Web UDD 64kbps UDD 64kbps ~ 384kbps

Game/ICQ UDD 8kbps ~ 64kbps UDD 8kbps ~ 64kbps

Ring download UDD 64kbps UDD 64kbps

Video UDD 64kbps LCD 64kbps ~ 384kbps

SMS UDD 8kbps ~ 32kbps UDD 8kbps ~ 32kbpsProviding multi-modes of bearers, WCDMA provides necessary platform for various

services. In the current stage, we cannot foresee what new services will come forth and which

services will become key services, but these are key factors for discrepant competition between

operators and for investment return of operators. This target demands should be prepared mainly

by the product manager (MKTPD) with an eye to the equipment capability in our company; and it

should also be done together with operators with the consideration of the market situations.

2. Service model

The service model is decided by the application mode of this service. Usually, it does not

change with users’ behaviors. If it cannot be given by operators, in case operates' agree, use the

baseline data (WCDMA RNP Model Baseline of Data Service Related to Market) of Huawei.



3. Traffic model

Traffic model refers to the way and frequency of a service used by users; it determines the

capacity demand of the network to be established. The determination of this model is closely

related to the prediction of the future market, so it should be determined through communications

s with customers.

For voice services, experience data of 2G is 0.02Erlang per user in the busy hour. (Data

used for planning, statistics data of current networks are lower)

For data services, in case customers are lack of experience data, it can be considered that,

customers give rough market prediction data, then analyze them, and send the obtained traffic

model to customers for verification.

Usual prediction data that can be the base of speculating include:

1. High, medium and low users’ proportions, corresponding ARPU values and charging

rate prediction of various services.

2. High, medium and low users’ proportions and busy throughput of the data service

(kbps / user / BH).

For detailed prediction methods, refer to WCDMA RNP Special Study on Data Service Model

Analysis.

3.2.2 Network Coverage Range and Coverage Quality

1. Network coverage range

The network coverage range refers to the target area that requires WCDMA coverage. This

area should be determined by operators and specified in the project contract. Because of the

staged construction requirements, this coverage range will probably be given in way of increase

year after year.

2. Communication probability

In the commercial network construction process, the coverage quality requirement is usually

given in communication probability. “The communication probability refers to the success

probability that a mobile station performs satisfactory call (voice quality reaches the specified

requirement) at the edge of radio coverage area (or inside the area). It includes location

probability and time probability.” Error: Reference source not found For celluar land mobile communication

systems, since communication probability varies little with time, location probability requirement

is mainly considered in planning.

In 2G stage, typical network coverage quality description: “In radio coverage areas, mobile

stations with 90% of the locations 99% of the time can access to the network.” Requirements of

location probability and time probability are given in this statement. For the WCDMA network,

multiple services are available. These services have different Qos, and because of the difference

of the target customer group distributions and the difference of priority, different coverage quality

requirements should be set for different services.



90% of the location probability requirements above corresponds to the area coverage

probability requirements, and these requirements have direct influences on the setting of shadow

fading margin in link budget Error: Reference source not found. High requirements of coverage probability

correspond to large shadow fading margin and small site distance. Therefore, too high

requirements of coverage probability will increase largely the network construction cost. In the

process of the communications with customers, persuade them at the point of view of return on

investment, and avoid inappropriate network construction demands.

For the12.2kbps voice service that usually requires continuous coverage and UDD64kbps /

LCD64kbps bearers, the typical coverage probability requirements are as follows:

Table 2 Typical requirements of area coverage probability in different environments

Morphology Coverage Probability

Dense Urban 98%Urban 95%

Suburban 90%Rural Area < 90%High Way 95%

3. Indoor coverage requirements

Besides the above-mentioned communication probability requirements, the indoor coverage

quality requirement should be defined for operators. In tenders and project contracts, to avoid the

different comprehensions on the definition of indoor coverage quality, operators will usually give

the consistent requirement of penetration loss margin, as shown in the following table:

Table 3 Typical requirements of penetration loss margin in different environments

Morphology Penetration Loss (dB)

Dense Urban 19Urban 13

Suburban 8Rural Area 8High Way 8

Although the indoor coverage solutions in the late stage can be adopted to realize better

indoor coverage quality, with an eye to the return on investment, such project can only be

executed for buildings that are of high commercial value; for most common buildings, especially

residential buildings, the coverage depends mainly on the outdoor NodeB. Therefore, it is

necessary to reserve certain penetration loss margin in planning.

Note that large penetration loss margin can improve indoor coverage effect, while it will

make the number of sites required for coverage increase rapidly, resulting in increased network

construction cost. In the process of the communications with customers, persuade them with the

point of view of return on investment, and avoid inappropriate network construction demands.

For the early-stage network construction, operators may consider putting aside indoor

coverage requirements temporarily, extend the capacity and improve the indoor coverage through

late-stage cell splitting manner to reduce early-stage network construction cost. In this case,

penetration loss margin of no less than 8dB should be considered in planning, so as to ensure 2004-07-09 All rights reserved of 43


communication quality of a mobile station inside vehicle at cell edge.

3.2.3 Network User Capacity

The main demand of network capacity is based on operators’ prediction on the future

markets. In tenders or project contracts, operators will usually give the network capacity demands

of each year. However, for system simulation, it is not enough that only total capacity demand is

available, detailed traffic density distribution data are required for planning input.

For operators that have 2G networks, through the traffic statistics data of 2G networks, the

traffic density distribution data can be predicted with consideration of market situation. For the

detailed process, refer to Section “2G Traffic Statistics Data Analysis” in WCDMA RNP Operation

Guide to Traffic Density Distribution Prediction.

For new operators, besides referring to the data from competitors if possible, they can also

predict the traffic density of the future network according to the local population distribution

information. However, the usual population distribution data that can be obtained are of statistics

according to administrative regions, so the data is not accurate enough to be adopted in planning.

In this case, according to the actual local conditions and economic status, divide each

administrative region into high-density population area, medium-density population area and low-

density population area; divide traffic density according to polygons. For the detailed process,

refer to Section “Population Data Analysis” in WCDMA RNP Operation Guide to Traffic

Density Distribution Prediction.

3.2.4 Upper Limit of Cell Loading Target

To ensure the comparability of the output results of each manufacture, sometimes operators

will give the upper limit of cell loading target, and require that the cell load in the planning output

scheme be lower than this limit. In simulation and nominal planning, design should be carried out

within this limit.

If operators have not given this limit, for macro cells, the load limit is recommended to be:

50% for uplink, 75% for downlink (transmission end load definition, including common channels).

3.3 Initial Site Selection

3.3.1 Site Survey of Local Environments

Site selection is closely related to the local propagation environment, so if allowed, the

planning personnel (NP_PL / NPSVY) should carry out site survey before nominal planning to

learn about the following information:

1. Typical propagation environment types and distributions of target planning areas. For

the description of the characteristics of various environment types, refer to [2]Miao

Jiashu & Chen Yan, WCDMA RNP Solution Typcial Application Scenario Analysis in

RAN Coverage Solution Ver1.01, Radio Network System Dept. Shanghai Branch,



2002/10/30.

2. Average height of buildings in each area.

3. Tree distribution in each area (kind, height, density).

4. Emphasized coverage target location and surroundings (including: government office

buildings, customer office buildings, customer residential areas, important industrial and

mining enterprises, etc.).

In survey processes, photos should be taken appropriately, and if possible, output XXX

Project Environment Survey Report of Target Planning Area.

In this process, accuracy of purchased digital maps can be verified at the same time, for the

specific method, refer to the Section “Site Survey & Verification” in WCDMA RNP Digital Map

Acceptance Operation Guide.

3.3.2 Propagation Model Calibration (Optional)

If possible, select typical propagation type area for CW test on the basis of site survey, and

carry out propagation model correction according to the test results. For the specific method,

refer to WCDMA RNP CW Test Guide、WCDMA RNP Propagation Model Calibration Data

Analysis Guide.

The output document of propagation model correction: XXX Project Propagation Model

Calibration Report.

3.3.3 Acquisition of Candidate Site Information for Operators

In the network construction cost, the site cost takes a rather large proportion; with the

improvement of human environment consciousness, new sites’ acquisition becomes more and

more difficult. In selection of WCDMA sites, candidate sites available from operators should be

adopted to the maximum to reduce the construction cost.

Operators that have 2G networks should obtain all existing site information, including:

1. Location (longitude and latitude);

2. Height (Attention should be paid to distinguishing the antenna height from the site

antenna surface height);

3. Existing equipment type (GSM900 / DCS1800 / PHS / CDMA / etc);

4. Indoor NodeB or outdoor NodeB?

If possible, the following information is helpful to the planning mentioned below:

1. Equipment room and transmission condition;

2. Site configuration, antenna azimuth and down tilt of the existing 2G equipment;

3. Whether there are other operator equipments and equipment types that share the same

stations or not.

For operators that have not 2G networks, their assets, such as business point, may also be

utilized in site establishment. For these candidate sites, learn about the following information:

1. Location (longitude and latitude);



2. Tower's or building's Height;

3. Whether or not surface is available for antenna installation, and whether or not other

devices are working;

4. Whether or not appropriate equipment rooms are available.

3.3.4 Initial Site Selection

Macro cells are usually adopted in the early stage of network construction. A macro cell

refers to a site where the coverage is mainly realized with waves diffracted over the roof and

where antenna installation height is higher than the average height of the surrounding buildings.

The planning design of the micro cell coverage network is not described in this document.

The initial site selection process is as follows:

Figure 4 Initial site selection process


huangsimin9800, 01/03/-1,

Available site ;Model corrction model等需要修改


1. Site import

Import candidate sites supplied by customers into Enterprise.

When there are many candidate sites, import them in batch into Enterprise. For detailed

operation methods, refer to WCDMA RNP Enterprise V4.x Multi-NodeB Import Operation Guide.

In convenience for the successive site selection, the import information should contain site

state information, for example, whether it is the macro cell site, whether it has equipment rooms,

whether it shares site with other equipments, and so on.

If there are little site information, distinguish the sites by adding prefixes to the names of pre-

defined sites.

If there is abundant site information, the “status flag” Function of Enterprise is recommended

for the description of site aided information. When using this function, it is required to define “ flag

groups” in the project at first, and then add corresponding “status flags” into the imported

information. In this case, observation and site filtering can be carried out conveniently in the

following site selection stage. For the detailed operation methods, refer to “help” files of

Enterprise.

Enterprise provides 5-digit flags, so the definition method of “flag group” is recommended as

follows:

Table 1 Recommended definition method of flag group2

Height -, ~15m, 15m~30m, 30m~50m, 50m~

Site Type -, green, indoor, outdoor

Co-site -, GSM900, GSM1800, CDMA, PHS, microwave

Feeder -, ~30m, 30m~60m, 60m~

Room -, none, existing but limited, available

2. Area division

Combining the digital map information and the environment survey reports, outline the

“polygon” for areas with different propagation types in the target area.

3. Determination of distance between sites

On the basis of the calibrated propagation model, use link budget tool to calculate the cell

radius of each area which satisfies the coverage requirement.

Attention should be paid to the difference between site types when the distance between

sites is calculated according to the cell radius. The usual site types include:

Omni: which is applied to remote areas where users are distributed

sparsely. From the point of view of coverage extension, OTSR station

type can be considered to replace it, and the antenna selection is

similar to that of 3-sector central excitation.

3-sector centre excitation: which is applied to somewhat remote

areas (characteristics: independent station, it is unnecessary for

2 The first item corresponds to displayed information of sites not set to this state; it is “-” in this recommendation, refer to “help" for “status flag” settings in Enterprise.2004-07-09 All rights reserved of 43


adjacent cell to complement the coverage.).

3-sector apex-angle excitation (clover type): which is recommended

in urban environments.

6-sector: this is used in the scenario that capacity is limited when

operators have few carriers.

These types are as follows:

R D

R D

Figure 5 Omni type & 3-sector centre excitation type

D

R

D

R

Figure 6 3-sector apex-single excitation type (clover type) & 6-sector type

For different site types and corresponding antenna selections, refer to WCDMA RNP

Antenna Type Selection Guide.

For different site types, the calculation formulae of the distance between sites D and typical

antenna level half-power angles are as listed in the following table:

Table 1 Calculation formulae of distance between sites D and typical antenna level half-power angles under

different station types

TypeTheoretical

formula

Engineering approximate

formula

typical antenna level (HPBW)

Omni site D = sqrt(3)×R D = 1.73R Omni-directional3-sector centre excitation D = sqrt(3)×R D = 1.73R 90°

3-sector clover type D = 1.5×R D = 1.50R 65°



6-sector D = sqrt(3)×R D = 1.73R 33°Multiply the obtained distance between sites D by 20%, and take the product as

appropriate range of distance between sites.

4. Site selection/New site

According to the range requirement of distance between sites, select among candidate sites

from dense urban area. When the number of candidate sites that agrees with the requirements is

more than 1, it is necessary to select the best one from them.

Site condition is an comprehensive index, so the factors that should be considered include:

location, site height, surrounding, acquisition cost, equipment room, transmission and so on. Site

information obtained in this stage is usually not complete, so it is difficult to carry out the complete

comparison; generally, the comparison focuses on site location and height, aided with the

judgment of other factors. At this time, the “status flags” function in site import can be used to

help analysis.

In different environments, requirements of antenna installation heights are as follows:

Table 2 Requirements of antenna installation heights in different environments3

Requirement of antenna installation heightRelative height above average

clutters Relative height above ground

Recommended value

Max. value Min. valueRecommended

valueMax. value

Dense urban 1m 2m 15m 20m 25m

Urban 2m 4m 20m 25m 30m

Suburb 4m 8m 20m 30m 35m

Rural 30m 40m 20m 40m 50m

Significance Important Important For reference For reference For reference

Types of target planning areas and average height information of each area can be obtained

through the site survey in the previous stage.

If no sites are available within appropriate range of distance between sites, add a new site.

The name of the new site can be set temporarily according to its location (street, building, etc.).

When adding a new site, attention should be paid to the difference between the name of the new

site and that of the existing sites; the fixed prefix “NewSite_” is recommended before the name of

the new site. For height of the new site, refer to the recommended values in Table 2 .

When adding a new site, note that the NodeB cannot be located in the places where it is

obviously not suitable for site establishment, for example, parks, green lands, waters, etc.

5. Default antenna azimuth and down tilt

After determining the site location and the antenna height, set up engineering parameters,

such as antenna azimuth and down tilt.

3 Usually, the estimated antenna installation height is: adding the site height by 2m. The meaning of the site height in the site information should be known, and make it clear whether the antenna installation height is contained in site height information. 2004-07-09 All rights reserved of 43


1） Antenna azimuth

The determination of the antenna orientation is related to the selected site type. For the

discussion on site types, refer to the previous section.

Generally, in nominal planning stage, there is no strict limit for the antenna orientation, just

ensure the uniform antenna orientation angles of all sectors. However, considering that most

streets in new cities are east-west or north-south streets, 45°/165°/285°is recommended for the

default antenna orientations of 3-sector directional station, so as to avoid the waveguide effect in

long and straight streets.

2） Antenna down tilt

Distinguish two different scenarios (coverage-limited and capacity-limited) and carry out

analysis.

For the scenario that coverage is limited, adjust the down tilt to make the antenna main lobe

pointing to the cell boarder:

For the scenario that capacity is limited, adjust the down tilt to make the half power point in

vertical plane of the antenna main lobe pointing to the cell boarder:

If an antenna embedded with fixed down tilt is adopted, make sure the electrical down tilt part

should be deducted when the mechanical down tilt is set. If the required down tilt is less than the

fixed down tilt, the required down tilt can be obtained via using the mechanical up tilt.

6. Coverage prediction

After the preliminary site selection, verify network coverage quality preliminarily through

coverage prediction.

The key of coverage prediction is the calibration of the propagation model. Note:

Different propagation models should be adopted for cells in different

types of areas.

If propagation model calibration has been conducted in the target area,

adopt the calibrated model and ensure that the settings of diffraction

parameters and antenna height calculations are uniform with that in

calibration process.

For areas in which propagation model calibration has not been

conducted, if corrected propagation models of 1800MHz are available,

add the value of K1 by the frequency loss (2.5 dB) and then adopt it.

In case calibrated propagation models are not available for the target

areas, refer to WCDMA RNP Standard Propagation Model Parameters

of Various Environment.



In the coverage prediction results, observe mainly the distribution of Best Server and pilot

signal strength.

For the requirements of pilot signal strength, ensure that the received pilot signal strength is

higher than (EiRP value of pilot transmission power – the strictest value of path loss in continuous

coverage services – obtained through link budget). In the early stage of WCDMA network

construction, continuous coverage is required for the LCD64kbps data service, and requirements

of the lowest corresponding received pilot signal strength are as listed in the following table

(obtained through Link Budget Table V 3.1)4:

Table 3 Requirements of lowest pilot receiving levels corresponding to continuous coverage of lcd64kbps service

Environment type

Indoor coverage Outdoor coverage

MAPLPilot receiving

levelMAPL

Pilot receiving level

Dense urban 129dB -79dBm 140dB -90dBm

Common urban 135dB -85dBm 141dB -91dBm

Suburb 141dB -91dBm 141dB -91dBm

Rural 141dB -91dBm 141dB -91dBm

For small areas where the coverage level cannot reach the requirement, improve it by

adjusting the antenna orientation and down tilt.

For large area where the coverage cannot reach the requirement, analyze whether the

distance between sites is too big: If it is, consider adding new sites to complement coverage;

otherwise, check whether there is error in the parameter settings related to coverage prediction.

For Best Server output, put emphasis on observing whether the Best Server area of each cell

in the same type of area is uniform. If there are too big or too small serving area of Best Servers,

analyze the reason and adjust the antenna orientation and down tilt in the surrounding cells to try

to improve it. If necessary, adjust the site to solve it.

After the preliminary selection and site engineering parameter adjustment above, start the

next step: network simulation and more accurate adjustment.

3.4 System Simulation and Site Adjustment

3.4.1 System Simulation

System simulation work is executed by system simulation personnel (NPSIM), and relevant

input is provided by the radio network planning team leader. For system simulation process, refer

to WCDMA RNP Enterprise Planning Software Users’ Guide and WCDMA RNP Enterprise

Parameter Setting Guide.

4 Suppose that: the feeder cable loss is 3dB; without adopting towers; outdoor coverage requirements correspond to penetration loss of 8dB (UE coverage in vehicle); the pilot transmission power is 33dBm; the antenna gain is 17dBi; and the default value of the link budget tool is required for the penetration loss margin of each area.2004-07-09 All rights reserved of 43


3.4.2 Site Adjustment

The following list should be output for system simulation:

1. Figure of pilot coverage effect in target planning areas: Ec and Ec/Io;

2. Pilot signal coverage probability of each cell: Ec and Ec/Io > lowest preset pilot receiving

power threshold probability;

For Ec threshold, refer to the description in Section 6 of 3.3.4.

For Ec/Io threshold, set it according to coverage requirements and service channel

transmission power. For areas where continuous coverage of LCD64kbps data service

is required, this threshold can be set to -13dB: suppose that the maximum transmission

power of 64kbps service is set higher than pilot power by 1dB, and the signal-to-noise

ratio of the downlink LCD64kbps service demodulation is required to be about -12dB.

3. Geographical distribution diagram of communication probability of each service;

4. Geographical distribution diagram and statistics sheet of access failure reason of each

service;

5. Geographical distribution diagram of link balance analysis;

6. Geographical distribution diagram of uplink load of each cell;

7. Geographical distribution diagram of pilot pollution;

8. Geographical distribution diagram and statistics sheet of handover probability of each

service.

Each of these charts shows an aspect of the network performance. The radio network

planning team leader (NP_PL), together with system simulation personnel (NPSIM), should

analyze the failure reason of each index, and carry out relevant site adjustment measures, so as

to ensure that the final network quality reaches the requirements of the planning targets.

3.5 Nominal Planning Report Output of Radio Network

Through the preliminary site selection and network simulation and adjustment processes in

the previous stages, each performance index of the output planning scheme should satisfy the

requirements of the planning targets. Based on this, the radio network planning team leader

(NP_PL) will output XXX Project Network Nominal Planning Report. The report contents are

required as follows:

1. Project background introduction;

2. Target planning area information: area, population, distribution, etc., refer to XXX Project

Environment Survey Report of Target Planning Area;

3. Radio network nominal planning scheme: geographical distribution diagram of sites,

complete site list (including site name, longitude and latitude, engineering parameter and

so on), etc.;

4. Performance summary of planning scheme: which is output on the basis of the

simulation results of the final scheme;

5. Appendix: output statistics chart of performance simulation of planning scheme, which is 2004-07-09 All rights reserved of 43


provided by the system simulation personnel (NPSIM).



4 WCDMA Network Cell Planning Operation Guide

The planning state is based on the nominal planning report which was output in the previous

stage. Personnel in this stage should be familiar with the output result of the previous stage,

especially the parts of planning target, planning conclusion and site requirements.

For the work flow of this stage, refer to Figure 2 .

4.1 Site Survey & Frequency Scanning

In the stage of site survey, it is required to carry out site survey on all site in the nominal

planning scheme, and determine the antenna installation location, engineering parameters and so

on for sites that satisfy the requirements; for sites that do not satisfy the requirements, present

site replacement proposition, and verify them through system simulation if necessary.

Work in this stage is completed mainly by the network planning survey personnel (NPSVY)

and engineering survey personnel (EGSVR) under the guidance of the radio network planning

team leader (NP_PL)5.

For the specific electronic stream in the stage of site survey, refer to the following figure:

5 The subcontracted process will not be discussed in this document. In overseas projects, this operation method is frequently seen.2004-07-09 All rights reserved of 43


Figure 7 Site survey process

For operators that have 2G networks, the detailed site information of the existing networks

can be usually obtained from the Operation and Maintenance Dept. In this case, in order to

reduce the amount of work, site survey reports can be accomplished directly by the information.

4.1.1 Search Ring of New Site

Besides the application of the existing sites of operators, only the theoretical locations are

given for other new sites in the planning scheme; the network planning survey personnel

(NPSVY) should obtain some sites satisfying the requirements near this location. As the guide for

the site survey personnel, radio network planning team leader should be responsible for

outputting the “Search Ring” (which is called “Search Zone” sometimes.) for each new site on the



basis of the nominal planning report. Only sites within this range are taken as possible candidate

sites.

The size of Search Ring should be appropriate. If it is too small, it will be likely that candidate

sites satisfying the requirements cannot be found; if it is too big, it will be likely that site

construction is carried out by using this site, and there will be differences between network

performance and planning results which are on the basis of theoretical location.

According to experiences, the determination of the size of Search Ring centers theoretical

location with the range of one-eighth of the radius. Besides, height requirement should be

presented for the candidate site. In this meaning, Search Ring is a 3-dimension concept. For

requirements of antenna installation height, refer to the description in Table 2 (In the nominal

planning, the theoretical height is usually set according to the recommended value.).

4.1.2 Site survey & Frequency Scanning

1. Preparation of planning in site survey stage

Site survey is a stage with large amount of work in radio network planning; there are many

uncertain factors, so there may be iteration. Site survey is the precondition of planning scheme

output, so there is usually strong pressure in progress which comes from markets. To avoid

influences on the late-stage project cost estimation and network performance by hasted site

surveys, radio network planning team leader should prepare in advance a plan of site survey

stage and communicate with relevant departments.

In order to speed the survey time for large scale commercial network construction,,

appropriate division can be considered for the target planning area; set up multi-survey teams

uniformly led by radio network planning team leader (NP_PL), and complete the survey.

In plan preparation, the amount of work can be estimated according to that a site is

completed by each team (one NPSVY plus one NGSVY) in each half workday. Network planning

survey report should be output during the survey process, so as to find new requirements of

candidate sites in time, then allocate the resources and adjust the plan. Since charts are involved,

the engineering survey report can be output later, but relevant conclusion should be reflected in

time in the network planning survey report.

2. Preparation

The network planning survey personnel (NPSVY) should prepare administrative maps and

rastered digital maps in Mapinfo format, and import all the site information contained in the

planning scheme. For new sites requiring survey, distinguish them from the existing sites with

special fields for the convenience of setting the query condition while being used.

Site survey should be completed together by NPSVY and engineering survey personnel

(EGSVY), which should be carried out before survey.

For sites that requires the cooperation of operators, contact with the account manager

(MKTAC).



For other survey equipments that should be prepared, refer to WCDMA RNP NodeB

Network Planning Survey Guide; if Frequency Scanning test should be carried out at the same

time, prepare Frequency Scanning equipments. Refer to WCDMA RNP Electromagnetic

Interference Test Guide.

3. Obtaining candidate sites

Candidate sites are usually supplied by a third party on the basis of the site requirements

that network planning survey personnel supplies. The third party may be a property agency, or

may be an operator.

In GSM establishment, there are some projects do not require determining candidate sites,

but carrying out survey directly, and then operators will take charge of bargaining the chartering

matters. However, this method will result in large amounts of reworking, and it will increase the

uncertainty of the plan progress, so it is not recommended in WCDMA network construction.

In actual operation process, it may be that candidate sites cannot be found inside “Search

Ring”, or although candidate sites are available, property negotiation fails. At this time, network

survey personnel (NPSVY) should consider, on the premise that radio network planning

personnel team leader agrees, to loosen the requirements of site height at first, and then to

loosen the requirements of searching range to find candidate sites. The obtained site information

should be input into the simulation tool to verify its influences on the network performance.

4. Site Survey

Site survey is completed together by the network planning survey personnel (NPSVY) and

engineering survey personnel (EGSVY). For the operation process, refer to WCDMA RNP NodeB

Network Planning Survey Guide.

In the survey process, NPSVY should refer to the requirements of the nominal planning

scheme, and determine the antenna installation location, antenna installation method, antenna

azimuth, antenna down tilt and so on according to the actual site conditions. For the matters and

attention in this process, refer to WCDMA RNP NodeB Network Planning Survey Guide.

5. Site survey report output

Network planning survey personnel (NPSVY) is responsible for the output of XXX Project

XXX Station Network Planning Survey Report for the surveyed site. To avoid information error

caused by neglect, to find problems about candidate sites in time, and to prepare solution

schemes, output site survey report everyday.

The survey report of the engineering part is output by engineering survey personnel, but

relevant conclusions should be reflected in site survey report, including:

Antenna installation method and location;

Feeder cable length;

Equipment room conditions (space, grounding…);

Transmission conditions (E1, microwave, HDSL…).

After all the site surveys are finished, the network planning survey personnel should 2004-07-09 All rights reserved of 43


summarize and output XXX Project Network Planning Site Survey Report and XXX Project

Engineering Parameter Sheet on the basis of each site survey report.

6. Electromagnetic interference test & electromagnetic interference test report output

For sites that share the station with other radio equipments (GSM, CDMA, PHS, microwave

and so on), the antenna installation method and installation location should be determined

according to relevant specifications to ensure certain isolation. Furthermore, electromagnetic

interference test equipments can also be considered for tests, so as to learn the actual

electromagnetic interference conditions of this site.

For the equipments used in the electromagnetic interference test and the test process, refer

to WCDMA RNP Electromagnetic Interference Test Guide. The test is usually completed in the

site survey process by the network planning survey personnel (NPSVY), and after that, output

XXX Project Electromagnetic Interference Test Report.

For large-scale trial networks, to reduce the amounts of survey work, carry out

electromagnetic interference test with selected-point method according to the actual conditions.

The electromagnetic interference test of the downlink frequency band in coverage area

should be completed by means of drive test; if testing, prepare test vehicles in advance.

4.2 Site Selection

On the basis of site survey, the actual site location and engineering parameters in the

planning scheme can be determined. When a theoretical station has more than one candidate

sites, site selection is necessary. In addition, if some sites cannot satisfy the requirements of

“Search Ring” or site conditions (equipment room, transmission and so on) cannot be fully

satisfied, it is required to judge whether site reselection is necessary.

Site selection process is completed by the radio network planning team leader (NP_PL)

assisted by network planning survey personnel (NPSVY) and engineering survey personnel

(EGSVY). This process is actually a comprehensive evaluation and comparison of all the

conditions of a site. The site conditions should be compared in detail and completely, so as to

avoid rework or increased costs because of incomprehensive consideration.

Site conditions can be reviewed from the following aspects:

Radio propagation

Construction

Commerce

In site selection process, emphasis should be put on the radio propagation condition;

considering construction feasibility and commercial limit, make the optimum selection. The

selection process should be made into documentation in reference to the adjustment of the

subsequent sites.

Factors that require to be reviewed in site condition comparison are listed in detail as follows:



4.2.1 Radio Propagation

1. Site location, height

How much the site location, height conform to the planning scheme.

2. Surrounding clutters

Whether or notthere are disadvantageous factors to the target areas (such as large blocking)

near sites.

4.2.2 Construction

1. Equipment rooms

Whether there are available equipment rooms or are the existing equipment rooms enough?

If not, whether the equipment rooms can be rented or extended?

Estimation of the feeder cable length from the equipment room to the antenna.

In case equipment rooms are not available, what is the possibility of outdoor NodeB being

used?

2. Antenna installation

Antenna installation method: Top of tower, antenna post fixture on the roof, antenna post

fixture beside the wall, whether or not the antenna pattern is shaded by the antenna surface.

Whether or not to make use of the existing ones or to set up new ones.

Whether there is any shared equipment, and whether the requirement for the interval from

the shared equipment can be satisfied.

3. Transmission condition

Make sure transmission is available to the equipment room.

Transmission method: fiber, E1, microwave or HDSL? Share the 2G equipment?

4. Power condition

Equipment room power: -48V, +24V or AC220V? Whether the distribution cabinet should be

added?

Equipment room grounding: existing or new ones to be set up?

4.2.3 Commerce

The probability of site availability.

Leasing cost estimation

4.3 System Simulation

Except that the sites (which do not satisfy Search Ring requirements) require the

performance verification and system simulation in site survey process, all the sites require



system simulation as well after they are determined; compare their performances with that in

nominal planning stage to find existing problems, and adjust the scheme.

System simulation is carried out by the system simulation personnel (NPSIM), and the

relevant input is provided by the radio network planning team leader. For the system simulation

process, refer to WCDMA RNP Enterprise Planning Software Users’ Guide and WCDMA RNP

Enterprise Parameter Setting Guide.

For the inspection of every output item of system simulation, refer to Section 3.4.2. In case

the network performance are not satisfied, analyze the reason, make an adjustment and

optimization, and consider reselecting some sites if necessary.

4.4 Report Output

After the planning scheme is simulated and verified, the radio network planning team leader

(NP_PL) will output XXX Project Network Planning Report.

The requirements of the planning scheme contents are basically the same with the nominal

planning scheme requirements described in Section 3.5, so they will not described any more

here.

In order to guide the construction, the planning report should include the planning

suggestions of the parameters related to the network planning below:

1. Location area and routing area planning;

2. RNC area planning;

3. List of neighbour cells (intra-frequency neighbour cell, inter-frequency neighbour cell and

inter-system neighbour cell);

4. Frequency planning;

5. Scramble code planning;

6. Allocation of cell channel power;

7. Handover parameter planning;

8. Admission parameter planning.

The planning principles and limit conditions of the parameters above should be specified in

the planning report, attached with XXX Project Summary of Cell Parameters Related to Network

Planning.

Note that, with the accumulation of the product application experiences, parameters related

to the network planning increase gradually, so the above-mentioned list is incomplete.

4.4.1 Location Area and Routing Area Planning

Refer to WCDMA RNP Paging Area Planning Guide.

4.4.2 RNC Area Planning

According to the projection requirements, determine the number of RNCs and RNC area

planning. Refer to WCDMA RNP RNC Area Planning Guide.



4.4.3 Neighbour Cell Planning

Identify the intra-frequency neighbour cells of each cell according to system simulation

output.

If the inter-frequency cell exists, the inter-frequency neighbour cell planning should be

carried out according to the coverage prediction result of the simulation tool; the automatic tools

are not available for accomplishing such planning at present, so it should be accomplished

manually.

If operators have 2G network, inter-frequency handover will be required. At this moment, the

inter-system neighbour cell planning should be carried out according to the location of the 2G

site. This planning can be carried out after the 2G site is imported on the basis of coverage

prediction, which is similar to inter-frequency neighbour cell planning. However, this process

should also be carried out manually.

4.4.4 Frequency Planning

WCDMA frequency planning is simple: just setting it according to the operators’ resources.

If there is no special requirement, for the interval between the frequency points, take the

default value of 5MHz.

4.4.5 Scramble Code Planning

Refer to WCDMA RNP Scramble Code Planning Guide.

4.4.6 Allocation of Channel Power

Allocation of the cell channel power includes common channel power distribution rate and

dedicated channel power distribution rate.

Generally, in the planning report, the common channel power allocation parameter can be

set according to the default parameter suggestion supplied from the production line; and adjust

the parameter in the late stage of optimization according to the requirements.

The dedicated channel power allocation requires distinguishing the different services. For

services requiring continuous coverage, obtain them with the link budget tool according to the

actual cell radius. For services that do not require the continuous coverage, set them properly

according to the capacity requirements.

4.4.7 Handover Parameter Planning

Generally, in the planning report, the handover parameter can be set according to the default

parameter suggestion supplied from the production line; and adjust the parameter in the late

stage of optimization according to the requirements.



4.4.8 Admission Parameter Planning

The admission process is the key algorithm ensuring the stable cell quality.

Generally, the admission parameter can be set according to the default parameter

suggestion supplied from the production line; and adjust the parameter in the late stage of

optimization according to the requirements.



5 Appendix

5.1 Illustrations

Here refers to attachment 4:illustration.vsd



List of references:

[1] Kyoung II Kim, CDMA System Design and Optimization,，2000

[2] Miao Jiashu & Chen Yan, WCDMA RNP Solution Typcial Application Scenario Analysis in

RAN Coverage Solution Ver1.01, Radio Network System Dept. Shanghai Branch, 2002/10/30


WCDMA RNP Radio Network Planning Operation Guidance-20050526-A-1.0

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