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Wireless Solutions for Rural Connectivity Tunisie Télécom SLAHEDDINE MAAREF TUNISIE TELECOM ITU/BDT Arab Regional Workshop on Wireless Network Evolution.

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Presentation on theme: "Wireless Solutions for Rural Connectivity Tunisie Télécom SLAHEDDINE MAAREF TUNISIE TELECOM ITU/BDT Arab Regional Workshop on Wireless Network Evolution."— Presentation transcript:

1 Wireless Solutions for Rural Connectivity Tunisie Télécom SLAHEDDINE MAAREF TUNISIE TELECOM ITU/BDT Arab Regional Workshop on Wireless Network Evolution Muscut Oman 3-5 May 2004

2 Presentation outlines 1-Market envirenment 2-Old Analog technologies used for rural wireless connectivity 3-Digital technologies used for rural wireless connectivity 4-conclusion

3 1- Market envirenment Telecommunications is a key enabler of economic and social development of a nation Universal service is a particularly urgent issue for rural and remote communities Today Internet access becomes as essential as telephony New multimedia services and technological convergence are shifting the regulatory focus to UNIVERSAL ACCESS

4 - Regulators are focusing on universal access Specific conditions are elaborated for rural areas coverage on fixed network licences Operatores are looking for economic and effecient solutions to provide universal service for rural and remote communities - 1-Market envirenment (Cd)

5 2 - ANALOG WIRELESS TECHNOLOGIES USED FOR RURAL CONNECTIVITY- -

6 2.1 Mono-channel & Bi-channel system Principe : use a radio link to connect remote subscriber moddule to the subscriber equipement into the swich Frequency : UHF / VHF Range : UP to 40 km -

7 2.1 Mono-channel & Bi-channel system (Cd) Applications : - isolated subscribers - rural public phone - farm - police - custom control point Service : basic telophony -

8 Station d'abonné (une ou 2 lignes) Interface analogique (2 fils) Central téléphonique UHF/VHF 2.1 Mono-channel & Bi-channel system (Cd)

9 2-2 : Fixed Analog Cellular System Priciple : use the analog cellular network to provide fixed telephony service Applcations : connect isolated subscribers located on the coverage area of the analog cellular Network Frequency : 450 MHZ, 900 MHZ Range : UP to 30km

10 Service mobile Service fixe Station de base Commutateur du réseau mobile Terminal dabonné radio RTC 2-2 : Fixed Analog Cellular System (Cd)

11 Common Standards used for Analog Cellular System (*) AMPS (Advanced Mobile Phone System) NMT (Nordic Mobile T é l é communications) Origine Am é ricain standard (1982) Scandinavian Standard (1981) Fr é quency 900 Mhz450 Mhz et 900 Mhz Range35 Km40 Km (450 Mhz) 27 Km (900 Mhz) 2-2 : Fixed Analog Cellular System (Cd)

12 N-AMPS (Narrow Advanced Mobile Phone) TACS (Total Access cellular System) E-TACS (Extended Total Access Cellular J-TACS (Japan Total Access Systeù 2-2 : Fixed Analog Cellular System (Cd) Others Standards used for Analog Cellular System

13 3 - DIGITAL WIRELESS TECHNOLOGIES USED FOR RURAL CONNECTIVITY -

14 3-1 : Point to Multipoint Radio System Principe : Radio acces Network point to multipoint using wired and/or wireless termination -Frquency : 1.4 Ghz - 2.7 Ghz -TDM technologies -Range : 10 to 200 km

15 Système de gestion de réseau Téléphone Données bas débits Interface Analogique/numérique RTPC Station centrale FH (1,5 –> 2,7 GHz) Station d'abonné Données bas débits Téléphone Station d'abonné Station Relais Données bas débits Téléphone 3-1 : Point to Multipoint Radio System (Cd)

16 Applications : Connectivity of small villages Services : Telephony Data (narrow band) Management of Priority for some subscribers Emmergency call Capacity - Base station : 500 subscribers - Terminal station : micro station : 2-4 sub large station : 128 sub 3-1 : Point to Multipoint Radio System (Cd)

17 3-2 -Wireless local loop : WLL Principle :using digital radio-acces to provide fixed telophony service Applications : connectivity of rural and suburban areas Services : Telephony : All PSTN services Data : 64 kb/s and more

18 Système de gestion V5.2 ou Analogique Station centrale PSTN Zone Suburbaine/Rurale BSC Terminal dabonné radio BS Réseau de transport FH, FO ou cuivre (xDSL) Interface radio 3-2 -Wireless local loop : WLL (Cd) Contrôleur de station de base + Station de base Téléphonie données

19 3-2 -Wireless local loop : WLL (Cd) Common Standards used for WLL DECT (Digital Européean Cordless Telecommunications) CDMA (Code division Multiple accès) OrigineEuropéen Standard (ETSI)Américain Standard Fréquency1880-1900 Mhz450Mhz, 800 Mhz, 1.7-1.8 Mhz, 1.8-1.9 Mhz, 2.2-2.3,Mhz, 2.3-2.5 Mhz, 3.4-3.6 Mhz, 3.5-3.7 Mhz TransmissionAMRT/ DRT (Duplex à répartition temporelle) CDMA RangeUp to 10 KmUp to 25 Km

20 3-2 -Wireless local loop : WLL (Cd) Common Standards used for WLL (Cd) DECT (Digital Européean Cordless Telecommunications) CDMA (Code division Multiple accès) Capacity of BS (0.5 Er/Sub, GoS = 1%) 100 abonnés- 1 RF (omni) : 800 lignes - 12 RF (2 RF*6 secteurs) : 7000 lignes Data LL 64 Kb/s-LL (128 Kb/s) -ISDN 2 B+D -Accès asymétriques (512 Kb/s down link) -Accès Ethernet

21 3-3 : Fixed and /or Restricted GSM - Principle : Using GSM Networks to provide fixed telephony ( or restricted mobility ) -Applications : Connectivity of rural areas -Services : telephony : all GSM services Data : - circuit : 9.6 kbps : - GPRS : 30-52 kbps

22 3-3 : Fixed and/or Restricted GSM (Cd) Frequency : 900 Mhz, 1800 Mhz, 1900 Mhz Range : up to 35 km

23 3-3 : Fixed GSM (Cd) Fixed GSM Terminal BTS BSC MSC

24 3-3 : Restricted GSM (Cd) BTS BSC 1 MSC Allowed mobility for that Subscriber All other cells are barred for that Subscriber

25 –Limited mobility option and rich set of value- added services when using mobile handsets –Smooth migration to GPRS/EDGE enabling higher data rates and new services

26 –Proven, very mature technology –Large range - up to 35 km in an open rural environment –High spectrum efficiency for voice services –Excellent & stable coverage/capacity ratio Advantages of GSM for limited mobility solutions 3-3 : Fixed and/or Restricted GSM (Cd)

27 – Smooth migration to GPRS/EDGE enabling higher data rates and new services – Limited mobility option and rich set of value-added services when using mobile handsets

28 For rural and suburban areas, wireless solutions are less costly than wired when subscribers are spread Quick deployment and easy installation The fixed GSM solution is capable of evolving to a full mobile solution Pre-paid (public phones & mobile pre- paid) for all users through the same IN platform

29 3-4 Rural connectivity using V.SAT System Principle :provide fixed telophony & Data services using satellite links Applications : connectivity of wide rural areas with very low density Services : Telephony : All PSTN services Data : Circuit switching n*64 kb/s : Packed switching : Ethernet

30 3-4 Rural connectivity using V.SAT System HUGHES NETWORK SYSTEMS A HUGHES ELECTRONICS COMPAN Y Quantum-Direct Station Terrienne HUGHES NETWORK SYSTEMS A HUGHES ELECTRONICS COMPANY Quantum-Direct HUB RTC HUGHES NETWORK SYSTEMS A HUGHES ELECTRONICS COMPANY Quantum-Direct Stations terminales VSAT Publiphone Station multilignes Station monoligne IP

31 CONCLUSION WLL (DECT)Accès GSMVSAT Population Density MediumLowHigh (small area) Applications & services Téléphony Fax Data Téléphony Fax Data SMS (GPRS) Téléphony Fax Data Multimédia Speeds Up to 70 kbits9,6 KbitsUp to 45 Mbits Mobility No (limited)Yès (Restricted/limite d) No Coverage Range < 5 km<30 kmLocal GoS (Compared to wired line) EquivalentLessEquivalent

32 شكرا Merci pour votre attention Thank you for your attention


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