sisem servizi per le telecomunicazioni · pdf file5. engineering design and work ... sisem...

© SISEM © SISEM

SISEM SRL PRODUCTS & SOLUTIONS

TLC Services

© SISEM © SISEM

Sisem Telecommunications Services

A broad spectrum of services supporting mobile networks implementation, development and optimization

© SISEM

TOPICS ➔ 4. Rental Service

Site Acquisition, land rental contract re-negotiation for saving achievement or conversion in Right of Use, Walk-in FTTH projects

➔ 5. Engineering Design and work management Preliminary and Definitive Site Design of mobile and fixed network, work management and safety planning, Walk-out in FFTC-FTTH projects antennas

➔ 6. Permit Permit management and achievement for mobile and fixed network implementation

➔ 1. Interfering Signals Detection Analysis and Troubleshooting of external o intra-system interfering signals within GSM/UMTS/LTE bands

➔ 2. LOS/MIM Viability analysis for point-to-point links with Line-Of_-Site verification and Interferential measurements within MW bands

➔ 3. Drive–Test Technologies and solutions to optimize the network

© SISEM © SISEM

Sisem /1 Interfering Signals Sweep


© SISEM

ABSTRACT In a mobile network, interferences happen ever more frequently and with ever more impact on the major KPI Networks. An interference can cause the complete unavailability of a radiomobile service with all the results that follow, considering that it is a fully-fledged public service and that the operators have obligations in terms of minimum levels of availability, which are very strict. SISEM offers an emergency service on BTS or NodeB sites to solve interferential problems in up-link, both caused by external and intra-system factors.

© SISEM © SISEM

The investigation activities consider two main cases:

The interference is generated by the system itself - Malfunctioning of some element in the receiving/transmitting chain - Source and target of the interference are the same - Intra-system passive intermodulation

The interference is generated by an external device - Tv antenna amplifiers - Phone jAmmers - Isofrequency TV transmitters - Mini-repeaters - Satellite antennas

Method of investigation

© SISEM © SISEM

Diagnosis on

BTS by PIM

Master

Intra-

system

source

Intervention on

BTS

Sweep for

external source

External

source

Source

shutdown

Real-time

verification

Real-time

verification

stop

Forced

procedure

activation


© SISEM © SISEM


Diagnosis on

BTS by PIM

Master

Intra-

system

source

Intervention on

BTS

Sweep for

external source

External

source

Source

shutdown

Real-time

verification

Real-time

verification

stop

Forced

procedure

activation

© SISEM © SISEM

Sisem /2 LOS/MIM


© SISEM

ABSTRACT/1 A LOS (Line of Sight) verification for point-to-point link is a prior study of the physical space available and of possible obstacles to the realization of the link for PDH/SDH systems. The verification can be carryed out by means of optical equipment or an electromagnetic approach. The objective of the study is to indicate the quality of the LOS, according to a predefined scale, depending on how any obstacles impact on the First Fresnel Ellipsoid: FRESNEL is completely free from obstacles LOS is excellent radio link is doable

“First Fresnel Ellipsoid”

Line of Sight

Antenna 1

Height Antenna 2

Height

Clear area

in Fresnel

zone

Obstacle

Height

Curvature of the Earth

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ABSTRACT/2 The proximity of obstacles to the First Fresnel Ellipsoid or the presence of obstacles within it downgrade the evaluation of the radio link to: good or sufficient, questioning its feasibility. FRESNEL is completely occupied by obstacles LOS is null radio link is not doable

“First Fresnel Ellipsoid”

Line of Sight

Antenna 1

Height Antenna 2

Height

Clear area

in Fresnel

zone

Obstacle

Height

Curvature of the Earth

© SISEM

ABSTRACT/3 The feasibility study for a point-to-point link is completed with the interferential analysis and the channel search for the activation of the link for PDH/SDH systems within the bands from 7 to 23 GHz. the objective of the study is the identification of interfering signals, that is channels already used by other operators for the implementation of a point-to-point link within the band and within the polarization in question. The acceptable interfering signals can be different depending on the direction they come from, on the basis of the radiation diagram of the antenna to install.

© SISEM © SISEM

BA NDA 13 GHz CH 28 MHz

S ITO DA TA

A ZIMUTH 89°NORD

S EMIBA NDA

P OL

CH 28 MHz 14 MHz 28 MHz 14 MHz 28 MHz 14 MHz 28 MHz 14 MHz

1L 1L 1H 1H

2L 2L 2H 2H

3L 3L 3H 3H

4L 4L 4H 4H

5L 5L 5H 5H

6L 6L 6H 6H

7L 7L 7H 7H

8L 8L 8H 8H

9L 9L 9H 9H

10L 10L 10H 10H

11L 11L 11H 11H

12L 12L 12H 12H

13L 13L 13H 13H

14L 14L 14H 14H

15L 15L 15H 15H

16L 16L 16H 16H

7H

8H

1H

2H

3H

4H

5H

6H

7H

8H

1H

2H

3H

4H

5H

6H

7L

8L

1L

2L

3L

4L

5L

6L

7L

8L

CANALE QUASI CERTAMENTE INTERFERITO

SITUAZIONI DUBBIE (INTERFERENTI DI PICCOLA INTENSITA' E/O PROVENIENTI DA DIREZIONI LONTANE

DALLA DIREZIONE DI COLLEGAMENTO)

CANALE DISPONIBILE

QUA DRO INTERF ERENZIA L E

INFERIORE SUPERIORE

V O V

3L

COZZO CERVELLO CS0072A

L EGENDA

28-giu-16

O

1L

2L

4L

5L

6L


© SISEM © SISEM

Sisem /3 drive-test


© SISEM

ABSTRACT Drive-tests are activities to monitor and verify the performances of a mobile network, considering the usual conditions of a constumer use (customer experience) Test results can be used to: optimize the design of a radio network readjustment based on the user’s preferences (performance benchmarking) resolution of punctual problems (troubleshooting) verification of the performances after a radio upgrade or a technological intervention

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Usually the activity is carried out on board of specifically equipped vehicles, but it can also be done by means of handheld devices, particularly to test the performances of a network in an indoor environment


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SISEM proposes two Drive Test solutions Automatic Testing Platform SMART AGENT - See sisem products presentation - Active Platform SWISSQUAL


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Active Platform BASED ON SWISSQUAL TECNOLOGY

DIVERSITY RANGER

QUALIPOC

NQVIEW TOOL

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Sisem /4 RENTAL


© SISEM

ABSTRACT The tied up problems to the development of the infrastructures of TLC are very often in partnership to the phase of acquisition of the availability of sites and spaces, belonging to private, Firms or public corporate body To get the title availability non onerous e/o to close a contractual accord to contained cost is an activity that sisem develops from by now 20 years on the market. The arrival of the net in fiber, has besides, very miniaturized this activity (WALK-in), bringing her/it to level of single building, rather than of area of search. sisem, has known however how to suit for this new Challenge. SISEM offers a consolidated rental service, with personal gotten used to the negotiation, with all the possible Private and/or Public stakeholders.

© SISEM

ABSTRACT We have planned and realized a notable number of srb beginning from the 1999. We have great experience on the structural and electric calculation

We are participating in the experience of fiber network implementation on the project fttc / ffth of telecom (SIRTI) and FFTN of Vodafone. We are partner of sirti for open fiber project

we manage worksites and safety planning for the mobile net and the fixed network, with attention and practicality

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Engineering AND PROFESSIONAL service for mobile phone network

implementation

• walk in • walk out • Optic Fiber routing design • Cartographical geo-referencing • Georadar surveys • Pre-existing structures assessment

• Site survey • Assessment of land use restriction (IT. REG.) • Preliminary and Definitive Design • Structural and power preliminary assessment • Implementation cost analysis • Electromagnetic impact analysis • Electrical and power improvement design

Engineering AND PROFESSIONAL service for optic fiber network

implementation

• Pre-existing structures assessment Worksite management and direction • Work safety planning and coordination

in confined environment • Works Final Testing

• Geological survey and modelling: Masw, penetrometer test, etc. • Tower structural analysis and verification (It. anti-seismic reg.) •Worksite management and direction • Work safety planning and coordination • Works Final Testing

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Engineering and PROFESSIONAL service for mobile phone network implementation

Engineering and PROFESSIONAL service for optic fiber network implementation

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ABSTRACT Permit achievement has a fundamental role within the development of the mobile phone or optic fiber networks. Both on the radio-mobile and on the optic fiber market we have acquired familiarity and fluidity of management of the phase of contact with the competent administrations and authorities SISEM enjoys of good credibility near all the public authorities involved in the permit deliver process and collaborates with them to get the results required by our clients to brief term, with the firm awareness to be building a relationship that must be also profitable for the future projects.

© SISEM

In short Drive Test - Optimization - Smart Agent Platform - Nemo Platform

Interfering Signals SCANNING - intra-system (PIM) - external - Troubleshooting

LOS/MIM - Optical - electromagnetic - Interferential measurements

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In short PERMIT - PUSHING - LAND USE RESTRICTION MANAG. - CREDIBILITY NEAR TO ALL PUBLIC AUTHORITIES

RENTAL SERVICE - ACQUISITION - NEGOTIATION - savings

ENGINEERING DESIGN AND WORK MANAGEMENT - MOBILE NETWORKS - OPTIC FIBER - WORKSITE DIRECTION - WORK SAFETY

© SISEM

SISEM SO IT WORKS

Contacts [email protected] www.sisem.it

mailto:[email protected]

http://www.example.com

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sisem servizi per le telecomunicazioni · pdf file5. engineering design and work ... sisem...

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