In-building Site Survey

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Prepared (also subject responsible if other) No.

SEP/SR C Bedini, F Ramos SEP-06:001944 UenApproved Checked Date Rev Reference

SEP/SR Fernando Ramos 2006-07-10 A

In-building Site Survey work instruction

CONTENTS

1 Introduction.........................................................................................22 Address, Accesses and Contacts.......................................................23 Building Characteristics......................................................................34 Customer coverage requirements.......................................................4

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1 Introduction

In-building GSM/UMTS projects are normally considered due to the generation of traffic that occurs inside all type of buildings or infra-structures like airports, shopping centres, stadiums, convention centres, office buildings, etc.

It is important to be aware of the environment around the building where the project will be installed. The following points should be specified:

Clutter environment – rural, suburban, urban, etc

Type of terrain – hilly or flat area, be aware of signal propagation from and to the building;

Existence of outdoor sites.

2 Address, Accesses and Contacts

There area several points considered as general information that should be gathered regarding the identification and location of the building in which the project will be installed:

Address – to easy locate the building; WGS84 Coordinates – decimal latitude/longitude; Access – indications from well known places or roads to easily access

the building; Site Web – website where could be found more information about the

building and general services offered to the public; Contact Person and e-mail – contacts of responsible person from the

building to be contacted in order to perform the site survey and give detailed information regarding the building (cable chutes to install the feeders, restrictions to antenna positions, ...)

Pictures should also be taken to serve as complementary information to the previous points.

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3 Building Characteristics

It is very important to be aware of general and detailed information about the building that should be considered during the design phase of the in-building project:

Total Usable Area [m2] – area to be considered in the design regarding coverage requirement;

Technical room – location and identification of the possible rooms to install the RBS’s. If only one operator is considered, should be taken into account an area with 15m2. If the room doesn’t have own air-conditioning, there should be considered extra space to install one;

Number of expected visitors – number of users to be considered to estimate the capacity needed for the required services;

Floor description and services – give detailed information of each floor specify the usage of each room and different services available in the floor;

Number and height of floors - number, identification and height according to the building usage;

Number of floors above ground – number of floors that can also be served by outdoor cells;

Number floors below ground – number of floors with no coverage or with very weak signal (<-90dBm);

Floor plan availability (If not available, please take a picture of the fire plan maps) – crucial to plan the location of antennas and feeder distribution. If no digital files are available, physical measurements must be done in detail, otherwise signal strength measurements and antenna simulation cannot be validated;

Cable routing plan availability (If not available, please ask someone responsible about the existent and possible cable routing) – horizontal and vertical cable chute paths and passages inside and between floors. It’s essential to plan cable paths and estimate cable feeders. If the building is new, it is important to know possible places to install new cable chutes.

Accesses from the floors to exterior - all the entrances and exits that can be used by the visitors to enter/exit the building, e.g. entrance to a parking lot;

Elevators positions – specify the elevators and respective location as well as the number of floors served by the elevator.


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4 Customer coverage requirements

Independent from the building characteristics, relevant information should be gathered regarding customer coverage needs:

Floors to be covered – indication of the floor to be covered by the in-building project;

Rooftop materials – type of material used in the ceilings of the specified floors, that should be considered in signal strength calculation in case it implicates high losses;

Wall materials – type of material used in the walls of the specified floors;

Any kind of antenna or cable installation restriction – restrictions to cable routing and/or antenna placement due to building owner conditions or due to any other factors. Should also be specified by the customer if any camouflage is needed for the antennas;

False ceiling – the existence of false ceiling in the specified floors;


Documents

In-building Site Survey