Freddy Mrema

Freddy Mrema

Dar es Salaam, Tanzania
2K followers 500+ connections

About

With over 20 years of experience in the telecom and ICT sector, I am a seasoned…

Activity

Experience

  • wingu.africa group Graphic

    wingu.africa group

    Dar es Salaam,Tanzania

  • -

    Kinondoni, Dar es Salaam, Tanzania

  • -

    Kinondoni District, Dar es Salaam, Dar es Salaam, Tanzania

  • -

    Dar es Salaam

  • -

    Dar es Salaam, Tanzania

  • -

    Dar es Salaam,Tanzania

  • -

    Tanzania

  • -

    Dar es Salaam, Tanzania

  • -

    Dar es Salaam Tanazania

  • -

  • -

  • -

  • -

Education

  • MZUMBE UNIVERSITY

    -

  • -

    Activities and Societies: BSI TRAINING ACADEMY

    ISO 22301:2012 BUSINESS CONTINUITY MANAGEMENT SYSTEMS: REQUIREMENTS

  • -

    Activities and Societies: BSI TRAINING ACADEMY

    ISO/IEC 27001:2013 Information Security Management Systems: Internal Auditor

  • -

    Activities and Societies: BSI TRAINING ACADEMY

    ISO/IEC 27001:2013 Information Security Management Systems: Lead Implementer

  • -

    Activities and Societies: BSI TRAINING ACADEMY

    ISO/IEC 27001:2013 Information Security Management Systems: Requirements Course

  • -

    Activities and Societies: Scope and history Design thinking Reliability engineering Business needs analysis Site selection Building structures & spaces Computer rooms & ICT spaces Cooling subsystems Power subsystems Security subsystems BMS subsystems Network subsystems Compute subsystems Storage subsystems Administration subsystems Final project completion DC Selling strategy

    This course encompasses the basic principles of data center design, tracking its history from the early days of the mainframe to the modern enterprise data center in its many forms and the future. It has modules on all the major sub-systems of a mission critical facility and their inter dependencies, including power, cooling, compute and network.

  • -

    Activities and Societies: 35 contact hours of formal Project Management training.

    1: Project Scope Management
    2: Project Time Management
    3: Project Cost Management
    4: Project Quality Management
    5: Project Human Resource Management
    6: Project Communications Management
    7. Project Risk Management
    8: Project Procurement Management
    9: Project Integration Management
    10: Project Management Tools and Techniques

  • -

  • -

    1:Overview of Wimax technology
    2: Hardware platform and antenna types
    3: Services and various applications
    4: Antenna modes and interference control
    5: Configuration and sector management
    6: Operations and maintenance principles
    7. Capacity management of point to point networks, Winlink 1000, Radwin 2000
    8: Capacity management of point to multipoint networks Radwin 5000
    9: Link budget design and planning tools
    10: System troubleshooting and spectrum analysis

  • -

    1: CDMA 2000 System evolution and structure.
    2: System structure and Hardware platform of PDSN
    3: TCP/IP Principle and IP Address regulations
    4: PDSN related interfaces and protocol
    5: PDSN signaling and traffic flow
    6: PDSN data configurations and services
    7. AAA principle and basic services configurations
    8: System tool and typical trouble shooting
    9: Multi ISP Principle and configurations
    10: User control and management system.

  • -

    1: CDMA Technology Overview, Antenna and feeder structure.
    2: Principle and implementation of CDMA Spread Spectrum
    3: Principle and implementation of CDMA 2000 1X Channel structure
    4: Principle and implementation of CDMA 2000 EVDO System
    5: Principle and Hardware structure of ZXC10 BSCB
    6: Principle and Hardware structure of ZXSDR B8200 C100
    7. Principle and Hardware structure of ZXSDR B8841 C804
    8: ZXC10 BSSB overview –Ap interface and A interface
    9: ZXC10 BSSB…

    1: CDMA Technology Overview, Antenna and feeder structure.
    2: Principle and implementation of CDMA Spread Spectrum
    3: Principle and implementation of CDMA 2000 1X Channel structure
    4: Principle and implementation of CDMA 2000 EVDO System
    5: Principle and Hardware structure of ZXC10 BSCB
    6: Principle and Hardware structure of ZXSDR B8200 C100
    7. Principle and Hardware structure of ZXSDR B8841 C804
    8: ZXC10 BSSB overview –Ap interface and A interface
    9: ZXC10 BSSB integration with MGW and MSCe
    10: Routine maintenance and troubleshooting

  • -

    1: Overview of 3G Core network
    2: Universal Hardware platform of ZXC 3GCN
    3: System structure of ZXC10 MGW, HLRe, MSCe
    4: Networking Mode and System design.
    5: No.7 signaling system SS7.
    6: Digit Analysis DAS
    7. SCCP Protocol and principle
    8: 2G Call Services flow
    9: MAP Services flow
    10: Trunk data configurations
    11: H.248, SIP, SIGTRAN and service flow of LMDS
    12. Billing system of 3G Core Network.
    13. Alarm management and report analysis
    14. Routine…

    1: Overview of 3G Core network
    2: Universal Hardware platform of ZXC 3GCN
    3: System structure of ZXC10 MGW, HLRe, MSCe
    4: Networking Mode and System design.
    5: No.7 signaling system SS7.
    6: Digit Analysis DAS
    7. SCCP Protocol and principle
    8: 2G Call Services flow
    9: MAP Services flow
    10: Trunk data configurations
    11: H.248, SIP, SIGTRAN and service flow of LMDS
    12. Billing system of 3G Core Network.
    13. Alarm management and report analysis
    14. Routine maintenance and system troubleshooting.

  • -

    1: Microwave system design
    2: Digital Microwave link Engineering
    3: Microwave network planning
    4: Efficient Carrier Ethernet transport
    5: Design consideration for Ethernet over Microwave
    6: Network Synchronization

  • -

    1: Networking Fundamentals
    2: Network Media and Cable testing
    3: Ethernet Switching Fundamentals
    4: TCP/IP Protocol suite
    5: IP Addressing and Routing Protocols
    6: WAN and Routers configurations
    7: Access Control Lists
    8: OSPF and EIGRP Configurations
    9: Virtual LANS and VLAN Trunking Protocols
    10: WAN Technologies

  • -

    FUNDAMENTALS OF TELETRAFFIC ENGINEERING
    1: Introduction to Teletraffic Engineering
    2: Traffic Concerpt and Quality of Service
    3: Probability Theory and Statistics
    4: The poison process
    5: Data Traffic and Classifications
    6: Traffic Overflow Theory
    7: Traffic Matrix Computation
    8: IP Network Quality of Service
    10: Traffic forecasting and Traffic Measurements

    CDMA TELETRAFFIC ENGINEERING
    1: Introduction to CDMA Fundamentals
    2: CDMA Design Engineering…

    FUNDAMENTALS OF TELETRAFFIC ENGINEERING
    1: Introduction to Teletraffic Engineering
    2: Traffic Concerpt and Quality of Service
    3: Probability Theory and Statistics
    4: The poison process
    5: Data Traffic and Classifications
    6: Traffic Overflow Theory
    7: Traffic Matrix Computation
    8: IP Network Quality of Service
    10: Traffic forecasting and Traffic Measurements

    CDMA TELETRAFFIC ENGINEERING
    1: Introduction to CDMA Fundamentals
    2: CDMA Design Engineering issues
    3: Transmit power control
    4: Capacity planning in CDMA
    5: CDMA Cell breathing
    6: CDMA Broadband capacity and coverage
    7: Introduction to WCDMA

  • -

  • -

  • 1: DSLAM Equipments
    2: ATM principles
    3: Basic conception of ATM
    4: Service and Protocol stack of ATM
    5: Interface of ATM network
    6: IP access equipment
    7. System structure and working principle
    8: Networking solutions
    9: Introduction to Solaris
    10: Introduction to Sybase
    11: Introduction to SNMP

Projects

  • VOIP GATEWAY INTERCONNECTION WITH THE 3G CORE NETWORK

    -

    Built an E1 Link for SS7 signalling between the Vocaltech Voip gateway and 3G Core network to allow CDMA mobile users to make cheap and high quality international calls

    Other creators
    • Dean Henstock,ELIKANA MAGOMBA
    See project
  • DIRECT INTERCONNECTION BETWEEN SASATEL AND VODACOM

    -

    Build a PDH MW link to Vodacom
    Build a signalling link to Vodacom MGW/MSCe to allow direct traffic between Sasatel and VODACOM

    Other creators
    • Elikana Magomba
    See project
  • SASATEL COVERAGE EXPANSION-BUILD 3 BTSes

    -

    Built 3 new CDMA BTS in Dar es salaam to improve coverage
    Interconnects the new sites with the existing Microwave ring SDH.
    The site connects to the SDH ring via PDH links

    Other creators
    • Age Haland,ZTE as subcontractor,
    See project
  • DESIGN, INSTALLATION, INTERGRATION AND TESTING CDMA 3G CORE NETWORK

    -

    DESIGN, INSTALLATION, INTERGRATION AND TESTING CDMA CORE NETWORK
    Worked with ZTE Vendor to do the following activities:-
    Design, build, central equipment room layout and install cable trays for cables
    Installed the racks for MGW,MSCe,HLRe,PDSN,AAA,BSC and one BTS
    Install the various software versions on different severs of Core network
    Interconnected the core network nodes, tested the first on net call successfully
    • Installation acceptance test
    • Configuration acceptance…

    DESIGN, INSTALLATION, INTERGRATION AND TESTING CDMA CORE NETWORK
    Worked with ZTE Vendor to do the following activities:-
    Design, build, central equipment room layout and install cable trays for cables
    Installed the racks for MGW,MSCe,HLRe,PDSN,AAA,BSC and one BTS
    Install the various software versions on different severs of Core network
    Interconnected the core network nodes, tested the first on net call successfully
    • Installation acceptance test
    • Configuration acceptance test
    • Reliability acceptance Test
    • Operation acceptance Test
    • Basic and Supplementary services acceptance Tests

    Other creators
    See project
  • DIRECT INTERCONNECTION BETWEEN SASATEL AND TIGO

    -

    Build a Microwave link between the two networks to enable the two Switches to communicate directly via their Media gateways on both sides

    Other creators
    See project
  • IST PBX

    -

    Build an E1 Link to International School of Tanganyika to allow IST staff make Local and International call from their PBX via MGW/MSCe of Sasatel.

    Other creators
    See project
  • NATIONAL/INTERNATIONAL VOICE TRANSIT INTERCONNECTION BETWEEN SASATEL AND TTCL

    -

    To be able to call/receive calls from all other operators in Tanzania by using the direct link to TTCL.

    Other creators
    See project
  • MULTI-SERVICES SWITCHING NODES (MSAN)

    -

    To replacing all old switches(Legacy switches) with new and modern Multi-Services switching Nodes (MSAN) and shall be integrated in the NGN core network for offering multi-Media services (Voice, data and Video).

    Other creators
    See project
  • MULTSERVICE ACESS NODES TO DSM CORPARATE CUSTOMERS

    -

    To provide a common platform to carry versatile broadband services, narrowband services, as well as leased line services. The Multi-Service Access Node shall support triple play services (i.e. broadband data, video & voice) in the single platform by using Optical Fiber to the building (Cabinet) instead of Copper wires

    Other creators
    See project
  • ADSL PROJECT ZANZIBAR, PEMBA, MTWARA, LINDI

    -

    Installation and configuration of NetEngine40 Universal Switching Router
    Installation and configuration of Digital Subscriber Line Access Multiplexer(DSLAM)
    Installation and configuration of Multiservice Access Nodes (MSAN)

    Other creators
    See project
  • TANROADS WAN/LAN PROJECT (35 BRANCHES, OFFICES&WEIGHBRIDGES

    -

    As technical manager during implementation and improving
    Installation, Configuration and commissioning of LAN/WAN of TANROADS, using various technologies (ADSL,Leased line and WLL)
    To interconnects all the branches with Tanroads HQ at Dar es Salaam

    Other creators
    See project

Languages

  • Swahili

    -

  • English

    -

Recommendations received

View Freddy’s full profile

  • See who you know in common
  • Get introduced
  • Contact Freddy directly
Join to view full profile

Other similar profiles

Explore collaborative articles

We’re unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI.

Explore More

Others named Freddy Mrema in Tanzania

Add new skills with these courses