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Transiever Assimilation

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Service Description

Survey task

 ± Optical test

Surrounding architecture environment and

nature environment

 ± Spectrum measurement

Electromagnetic environment

 ± Site check

Installation condition of antenna andequipment

Power supply and transmission supply

Survey purpose

Collect the site information required by the networking planning and

environment description. Check whether the site meets the requirements of 

construction.

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Service Description

According to width of band, determine frequency multiplex mode

According to capacity forecast, traffic distribution, and coverage

requirement, estimate the required quantity of BTSs.

Confirm the position of BTS in theory.

Perform BTS survey

Design parameters of cell

 ± Network hierarchy structure, transmit power, antenna system,

including the type, height, direction, and down tilt of antenna

Position of BTS survey in the network planning

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Radio network

estimation

report

Site

information

Whether 

there is a site

Obtainingspare sites

Site surveyWhether conforming site

condition

Survey

report

Whether meetingrequirements of 

site

Obtaining site;

selecting radius

Electromagnetic

environment

test

 Yes

No

 Yes

No Yes

No

Service Flow

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Contents

Chapter 1 Service Description

Chapter 2 Preparation

Chapter 3 Site Selection

Chapter 4 Antenna Design

Chapter 5 Survey Document

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Be familiar with the engineering and collect the materials that is

related to the project :

 ± Engineering document

 ± Background material

 ± Network status

 ± Map 

 ± Configuration list

Preparation

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Prepare the following tools that are available:

 ± Digital camera

 ± GPS satellite receiver

 ± Compass

 ± Ruler

 ± Laptop

Preparation

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Preparation

Survey preparation coordination meeting

Before survey, call in all the relative personnel to hold the survey preparation

coordination meeting. The main contents of this meeting are listed as follows:

Testing electromagnetic background

Arranging survey and coordination personnel

Preparing vehicle and equipment

Making survey plan and confirming survey route

Offering the primary schemes of transmission

and power

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Contents

Chapter 1 Service Description

Chapter 2 Preparation

Chapter 3 Site Selection

Chapter 4 Antenna Design

Chapter 5 Survey Document

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Site Selection

After completing preparation and knowing about the coverage requirements,

start to select site.

When confirming the site, consider the following information:

 ± Original network condition

 ± Population distribution and local custom

 ± City structure and town distribution

 ± Main streets and traffic flow

 ± Mountainous region, lake, river, and coastline

 ± Long-term development trend

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Principles of Selecting Site

Choosing sites in the

heavy-traffic region and

concentrated subscriber 

region

Population distribution

Traffic distribution

Subscriber flow direction

Principle Principle

Surrounding environment

Signal propagation quality

Trying not to choose sites near 

mountain, radar, broadcasting

station, forest, and electrical

factory

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T he specific principles are described 

as follows: ± Construct BTS on the ideal position of a cell. The offset should

not exceed the ¼ of coverage radius.

 ± Under the condition of the BTS layout is not affected, choosethe existing equipment to reduce the construction cost and

period as possible .

 ± To control the coverage range, reduce the difficulty of 

engineering construction, and be convenient for maintenance,

do not choose the sites on the mountain that is on the border

of the city or suburb.

(the relative altitude to the city: beyond 100m300m)

Principles of Selecting Site

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Principles of Selecting Sites ± Construct the BTS at a place where transport is fluent, supply of mains

is available, environment is safe, and there is a few filed.

 ± Do not construct the BTS near the high-power radio transmit station,

radar station, and other interference sources.

 ± Construct BTS at a place that is far away from the forest to avoid the

fast fading of received signal.

 ± Consider the signal reflection and time dispersion when constructing

the sites in the mountainous area, precipitous shore, dense lake area,

highland city, and the environment with high metal building.

 ± When choosing site in the complex, realize the division of network

structure according to the height of building.

 ± At the early stage of constructing network, because of a few of BTSs,

ensure good coverage in important areas.