INTERNATIONAL TELECOMMUNICATION UNION Telecommunications Development Bureau (BDT) REGIONAL OFFICE FOR AFRICA NETWORK DEVELOPMENT.

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Presentation transcript:

INTERNATIONAL TELECOMMUNICATION UNION Telecommunications Development Bureau (BDT) REGIONAL OFFICE FOR AFRICA NETWORK DEVELOPMENT

TOPICS Trends and evolution of telecommunication technologies and services Trends and evolution of telecommunication networks Actual situation Challenges ahead Protecting existing investment during migration. (proposal)

TECHNOLOGIES AND SERVICES Voice Voice, telex, telefax Media Video Pre-paid Data and the internet E-everything (education, health, commerce, governance, etc.) Voice/mail, , multimedia, video, conferencing etc.

TELECOMMUNICATION NETWORKS Electromechanical Fixed Circuit switched analogue Fixed Circuit switched digital Wireless/mobile circuit switched analogue Wireless/mobile circuit switched digital Fixed Packet switched Wireless/mobile Packet switched IP/Optical

ACTUAL SITUATION –Insufficient technical interconnection capacity. –Insufficient platforms for new technologies and services –Limited infrastructure, if not none in rural areas. –Very low tele-density. –Low population covered by mobile/cellular networks. –Low area covered by mobile/cellular networks –Insufficient usage of communication facility for safety missions.

ACTUAL SITUATION - Continued Under utilization of fixed/land mobile wireless technologies. Separate networks for voice, data, video and media. Insufficient usage of and implementation of International standard signalling system in the digitalized networks. Low Internet access penetration Low data speed (9.6Kbps) in mobile/cellular networks. Analogue transmission and switching networks. High development costs.

CHALLENGES AHEAD 1.Implementation of internationally accepted standards for signaling. 2.Development of end to end digital transmission networks. 3.Planning and development of sufficient platforms for new technologies and services 4.Planning and implementation of migration steps for the converging transportation of voice, data video and media 5.Enabling of conducive environment for network expansion/development in rural areas.

CHALLENGES AHEAD (Continued) 6.Implement fixed/mobile wireless and Satellite technology in rural telecommunication development. 7.Involve participation of Universities, Engineering Institutions, Science and Technology, professional Associations in rural telecommunication development and in telecommunication industry development.

Protecting existing investment during migration. (proposal) Proposed migration steps for networks in PSTN and Mobile/Cellular. -Ensure availability of basic infrastructure of PSTN and mobile/cellular. -In the PSTN digitize the Switching system between all nodes and plan for interconnection capacity. -In the PSTN digitize the transmission system between all elements.

Protecting existing investment during migration. (proposal cont’d) -Implement the International standard signaling system in the digitized network. -Implement ISDN and IPTC platforms in PSTN and GPRS in mobile/cellular networks. -implement and establish IP in the telecommunication network.

PROPOSED MIGRATION STEPS IN THE PSTN & CELLULAR/MOBILE NETWORKS – FLOW CHART Are the basic PSTN Infrastructure and Cellular Networks available? Suggest implementation of cellular networks STEP 1 Is the Switching Network digitized and planned for Interconnection capacity? Digitize the Switching Network of all nodes and plan for Interconnection capacity. STEP 2 NO YES

Is the Transmission Network Between ISC and Earth Station, between ISC and NTSC, between NTSC and NSC,between NTSC and ISPs and between NTSC and Cellular networks digitized? Digitize the Transmission Network between all Switching network elements Is international Standard SS7 Signaling implemented in the Digitized Switching network? Implement the SS7 signaling in the digitized Switching network. STEP 3 STEP 4 YES NO

Are ISDN, IPTC and GPRS Platforms for Packet Switching Implemented in the PSTN and mobile Networks? Implement IP (Internet protocol) in the telecommunication network. For external plant, ensure installation of standard cabling, use Modems, PAD, etc for Packet Switching. FULL ESTABLISHMENT OF PACKET SWITCHING Implement ISDN, IPTC In the PSTN and GPRS In the mobile Networks. Is IP implemented in the Network? STEP 5 STEP 6 YES NO

THANK YOU VERY MUCH FOR YOUR ATTENTION REGIONAL OFFICE FOR AFRICA NETWORK DEVELOPMENT Kasane, Botswana July 2002