Radio Frequency Engineering

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Radio Frequency Engineering

Asters teams of experienced RF Engineers deliver highly reliable services to our clients. Our RF

Engineers are highly adept at handling the latest RF investigation tools like TEMS Drive Test Kits.

Aster provides the following Radio Frequency Engineering services for all wireless Networks (GSM,

CDMA & WiMax):

RF Planning, Transmission Planning and Network Design CW Drive Tests and Model Tuning RF Survey and Site selection MW LOS Survey and Link Engineering Network Audit Drive Test & Network Optimization Comparative Drive Tests and Benchmarking RF Optimization and KPI Analysis Spectrum Analysis Spectrum Analysis

RF Planning, Transmission

planning and Network Design

Asters RF Engineering Resourcesare well trained to use state-of-the-art

industry standard tools for design,

planning and testing the networks to

ensure that the network design meetsthe network performance objectives

of the customer.

Some of the Network Planning Toolsthat our engineers are trained to used

in RF Planning and Network Design:

Aircom's Asset Planning Tool Forsk Atoll Planning Tool


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Pathloss 4.0 Aircoms Connect Link

Planner

RF, MW LOS Survey and Network

Audit

Asters teams of experienced RFEngineers deliver highly reliable

services for optimal functioning of

projects and services.

RF Survey

The ultimate goal of a RF site surveyby Aster is to acquire ample

information to determine the numberand placement of access points thatallows optimal coverage throughout

the facility.

RF site survey is carried out in thefollowing steps:

Collect list of Nominals to besurveyed, from the customer.

In case of new town surveys

where Nominals are notprovided, Aster will survey

the town and provide a

nominal for suitable sitelocation

Use the survey reporttemplate forwarded by the

customer

Identify physical location ofthe proposed nominal and

locate 3 candidates

(maximum) for each nominal,as per search ring size

suggested by the customer

Survey the site for RFsuitability

Record Latitude andLongitude, building heightetc. of the proposed


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candidates

Estimate and provide requiredGSM Antenna heights andorientation, proposed tower /

pole location (s) will also be

marked on a rough sketch ofthe building (rooftop) orground site (for each

candidate)

Take site photographs (360degrees panoramic view and

building / site elevation) for

each candidate as given in the

survey template by you

Record physical addresses ofthe candidates and site owner

/ manager contact details(where available)

Complete the Site SurveyCandidate evaluation report

Line Of Site (LOS) Survey

The ultimate goal of LOS survey is to

have MW connectivity between the

two sites to ascertain the Line of Site

clearance. The LOS survey is carriedout physically checking the terrain

between the hop and selecting the

sites for acquisition. The survey is

highly critical because any failure inLOS can lead to a delay in project

and a subsequent loss on account.

LOS survey is carried out in the

following steps:

Collect Nominals of proposedsite and those of the nearest

locations to which customerproposes the LOS

connectivity & Verification

Record latitude, longitude,building data, obstruction dataand surrounding terrain data

on the LOS Survey template


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from the collected statistical data,

locate root causes and recommend

possible course of action andNetwork modification if required.

A detailed report of the findings ofthe audits and analysis of the data iscompiled and presented to customer's

engineering team for initiating

necessary corrective actions andproactive measures for future

expansions.

Our Network Audit services

include

Collect the data of the existingnetwork from the customer

Verify the data obtained withthe site data on field

Note the deviations if any andinform the customer through

audit report

Recommendation of possiblecourse of action and Network

modifications, if any for

optimum performance of thenetwork

Compilation and update ofNetwork data for Network

expansion, operation andmaintenance

Drive Test is conducted for checking

coverage criteria of a cell site with RF

drive test tool. The data collected by

drive test tool as Log files is analyzed to

evaluate various RF parameters of the

network.

Drive Route and Site Data for thesites to be driven is taken from

customer

Drive Test LOG File of thespecified Drive Route / Site is


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saved and the same will be

handed over to customer at the

end of the day

DT Resource identify routinefield optimization issues likecable swapping, missing

neighbors etc., and rectify the

same with the help of the

customer

Optimization is carried out in the

network to

Minimize the call drop and RFinterference in the network

Increase the indoor & outdoorcoverage and better speech

quality

Network Optimization Tools Used are as

the following:

TEMS Investigation Agilent E6474A Neptune CDMA Air Interface Tester (CAIT) TEMS DeskCat Actix Analyzer

RF Optimization

Aster offers RF OptimizationServices for existing/new GSM and

CDMA network operators. Thisservice is performed as a continuous

RF engineering activity for

preventive maintenance. It ensuresoptimum network performance to

meet the Quality of Service (QoS)


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targets of the customer.

Quality of Service (QOS) targets asper the Operators specifications:

Coverage of Service Area:Urban, Suburban, Roads or

the Rural areas

Call Success Rate Minimizing Handover failures Rx quality Improve Speech Quality

Index for higher Networkquality

Satisfied customers resultingin low churn

Efficient network utilization

Reduced investment costs andincreased revenue for thecustomers

KPI Analysis

Key Performance Indicators (KPI)

are a measure of successful network

performance and its quality. Withgrowing customer base and

continuous addition of capacity and

coverage sites, operators need to

continuously monitor the KPIs oftheir network to assess service

quality. Asters experienced team of

RF engineers are highly capable ofproviding regular KPI collection,

analysis and customer presentations.

Aster has a remarkable track

record in providing In-building

solutions in RF planning, design,

installation and commissioning.

Our project managers oversee

every aspect of system design,

installation and testing for the

acceptance of the customer.


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We are capable of providing the

following In-building solutions:

RF planning and design Installation of RF cables and

distributed antennas

Coverage test Installation of Repeaters Installation of BTS & MW

Radio Frequency Engineering

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