Presentation is loading. Please wait.

Presentation is loading. Please wait.

Wireless Network Evolution Tunisie Télécom SLAHEDDINE MAAREF TUNISIE TELECOM ITU/BDT Arab Regional Workshop on Wireless Network Evolution Muscut Oman 3-5.

Similar presentations


Presentation on theme: "Wireless Network Evolution Tunisie Télécom SLAHEDDINE MAAREF TUNISIE TELECOM ITU/BDT Arab Regional Workshop on Wireless Network Evolution Muscut Oman 3-5."— Presentation transcript:

1 Wireless Network Evolution 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 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 1- Market envirenment

4 – Today Internet access becomes as essential as telephony – New multimedia services and technological convergence are shifting the regulatory focus to UNIVERSAL ACCESS

5 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)

6 2 - ANALOG WIRELESS TECHNOLOGIES

7 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 -

8 2.1 Mono-channel & Bi-channel system (Cd) Applications : - isolated subscribers - rural public phone - farm - police - custom control point Service : basic telophony -

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

10 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

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

12 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)

13 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

14 3 - DIGITAL WIRELESS TECHNOLOGIES -

15 3-1 : Point to Multipoint Radio System Principe : Radio acces Network point to multipoint using wired and/or wireless termination -Frquency : 1.4 Ghz Ghz -TDM technologies -Range : 10 to 200 km

16 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)

17 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)

18 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

19 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

20 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 Fréquency Mhz450Mhz, 800 Mhz, Mhz, Mhz, ,Mhz, Mhz, Mhz, Mhz TransmissionAMRT/ DRT (Duplex à répartition temporelle) CDMA RangeUp to 10 KmUp to 25 Km

21 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

22 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 : kbps

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

24 شكرا Merci pour votre attention Thank you for your attention

25 WiFi-RadioLAN Slaheddine MAAREF Tunisia Telecom ITU/BDT Arab Regional Workshop on Wireless Network Evolution Muscat, Oman, May 2004

26 Our thanks are adressed to Tunisian Frequency Agency (ANF) promoter and manager of this pilot projet ITU/BDT Arab Regional Workshop on Wireless Network Evolution Muscat, Oman, May 2004

27 PLAN WIFI Overview. Applications of RadioLAN Technologies. Définition of Hot Spot. Standardization of RadioLAN Technologies. Tunisian ANF pilot project Tests & évaluation. Commercial WiFi applications Conclusion.

28 WIFI Overview Wireless Local Area Network –Définition: Broadband Radio Network for interconnection of personnel data equipments (PC, lapTop, mobile terminal..) using high speed radio links. –Dénominations : WLAN : Wireless LAN RLAN : Radio LAN RLR: Réseau Local Radio

29 Applications of RadioLAN Technologies 1.To built new LANs (entreprises, universities, library, private …). 2.To offer connectivity inside public areas, transit areas,.. (Hot Spot).

30 Whats Hot Spot ? Hot Spot is the area of coverage of Radio LAN using the wireless standard for Data transmission. Hot Spot to offer mobile high speed Data connectivity within the coverage area. Hot Spot usually implemented inside aéroports, hôtels, conférences centres, campus universitaires…

31 RadioLAN Standardisation

32 Coverage Range comparaison between 2,4GHz & 5GHz bandwidth at 15dBm

33 Tunisian ANF pilot project OBJECTIVES : To be in line with CMR-03 recommandations. Try WiFi solution for Internet accès : Hot Spot. Learn about RadioLAN Technologies

34 Deployement of the pilot project 3 Steps : 1.Technical Study : constraints & performances required. 2.Configuration & installation of équipements. 3.Tests & évaluations.

35 Technical Study Constraints to be observed : - Data Sécurity - Spatial Constraint : maximum couverage, minimum interférence - Technical Constraint : power connectivity (best place), Ethernet accèss.

36 Constraint Spatial/Sécurity

37 Data Sécurity Radio transmissions Possibility of interception. Solutions : Access contrôl : - Spatial : Coverage Range Mesurement & contrôl. - Access adresses Control. Sécurité protocole : WEP (Wired Equivalent Privacy).

38 Configuration & Installation –Installation of 2 RadioLANs inside 2 buildings located at 50m (ANF & Ministère des Technologies de la Communication et du Transport). –Interconnexion of the two buildings using a bridge.

39 Configuration & Installation(Cd) –Installation & configuration of a Billing System to charge Internet connexion. –Installation & configuration of a Network Management System

40 WiFi Equipements for the pilot project Accès Points (5 for ANF building, 4 for Ministère building & 2 for interconnexion of the 2 buildings). Switchers (2 inside ANF building). Management & Billing system (2 SMB & 1 CMB). Portable terminals

41 Management system (2 SMB & 1 CMB) SMB - On Site MultiBox : –Users Authentication –Sessions management –Accounting of connexion time CMB - Central MultiBox : –Data base management. –Validation of authentication request of SMBs –SMBs management

42 Network Topologie

43 Access Point Configuration inside ANF building (Ethernet connexion) Internet SMB/ANF AP

44 Access Point Positions AP3 Signal required AP1 AP2 Ground 1 st Floor

45 AP4 AP5 2d Floor 3d Floor Access Point Positions ANF Building

46 AP_TELMIN_3 AP_TELMIN_4 AP_TELMIN_2 AP_TELMIN_1 SMBTelmin Access Point Positions Ministère Building

47 Directionnel antennas Installation

48 Tests Évaluations 1- Radio Tests Results: - Tested Signal Power : 15mW, 30mW, 50mW et 100mW. - Data Speed : up to 5 Mb/s. - Coverage Range : 15 to 25m.

49 2- Sécurity Tests : Intrusion Tests : -at radioLAN level -at serveurs( firewall….) level -at coding level. -at Authentication level. Sessions management tests Tests Évaluations (Cd)

50 3-Operational Tests System Administration : Login Management. Access Point Management. VLAN Management. Network Coverage & handover. 4- Physical Tests –Mobile Terminals Mutuel Accès. –Connectivity tests between servers : CMB, SMB1,SMB2. Tests Évaluations (Cd)

51 Common WiFi Applications Case of « Hot Spot » Integrated access service included in the package offered by the area manager (could be free of charge) : Aireport, Railway Station… example : Wayport Network (USA) for hôtels information.

52 Common WiFi Applications (Cd) Access to ISPs -Payement using credit card or prepaid card…. Mobiles opérators data access service using SIM card for authentication, charging...

53 Conclusion WiFi technologies are developping very fast offring new facilities for terminal mobility. Private & Public operators are in compétition sharing this promising market. Development of advanced Standards : b g to get higher speeds & better security.

54 شكرا Merci pour votre attention Thank you for your attention


Download ppt "Wireless Network Evolution Tunisie Télécom SLAHEDDINE MAAREF TUNISIE TELECOM ITU/BDT Arab Regional Workshop on Wireless Network Evolution Muscut Oman 3-5."

Similar presentations


Ads by Google