Nothing Special   »   [go: up one dir, main page]
Scribd Logo
Upload

Welcome to Scribd!

  • 50 views

    By: Ajit Rathee 2k7-MRCE-ECE-069

    Uploaded by

    Vijayender Reddy Singidi
    The document discusses the evolution of cellular network generations from 1G to 4G. 1G networks used analog transmission and were focused on voice calls. 2G digitalized the networks, providing better voice quality and higher capacity. Popular 2G standards included GSM, CDMA, and TDMA. 3G networks supported faster data transmission, allowing services like internet and fax on mobile. 4G networks are designed to be fully IP-based, supporting higher speeds up to 100 Mbps and integrating technologies like WiFi and Bluetooth to provide connectivity anywhere. 4G aims to greatly increase network capacity and support real-time multimedia applications.

    Copyright:

    Attribution Non-Commercial (BY-NC)
    Download as PPT, PDF, TXT or read online from Scribd

    By: Ajit Rathee 2k7-MRCE-ECE-069

    Uploaded by

    Vijayender Reddy Singidi
    50 views26 pages
    The document discusses the evolution of cellular network generations from 1G to 4G. 1G networks used analog transmission and were focused on voice calls. 2G digitalized the networks, providing better voice quality and higher capacity. Popular 2G standards included GSM, CDMA, and TDMA. 3G networks supported faster data transmission, allowing services like internet and fax on mobile. 4G networks are designed to be fully IP-based, supporting higher speeds up to 100 Mbps and integrating technologies like WiFi and Bluetooth to provide connectivity anywhere. 4G aims to greatly increase network capacity and support real-time multimedia applications.

    Original Title

    4G Technology

    Copyright

    © Attribution Non-Commercial (BY-NC)

    Available Formats

    PPT, PDF, TXT or read online from Scribd

    Did you find this document useful?

    Is this content inappropriate?

    The document discusses the evolution of cellular network generations from 1G to 4G. 1G networks used analog transmission and were focused on voice calls. 2G digitalized the networks, providing better voice quality and higher capacity. Popular 2G standards included GSM, CDMA, and TDMA. 3G networks supported faster data transmission, allowing services like internet and fax on mobile. 4G networks are designed to be fully IP-based, supporting higher speeds up to 100 Mbps and integrating technologies like WiFi and Bluetooth to provide connectivity anywhere. 4G aims to greatly increase network capacity and support real-time multimedia applications.

    Copyright:

    Attribution Non-Commercial (BY-NC)
    Download as PPT, PDF, TXT or read online from Scribd
    Download as ppt, pdf, or txt
    50 views26 pages

    By: Ajit Rathee 2k7-MRCE-ECE-069

    Uploaded by

    Vijayender Reddy Singidi
    The document discusses the evolution of cellular network generations from 1G to 4G. 1G networks used analog transmission and were focused on voice calls. 2G digitalized the networks, providing better voice quality and higher capacity. Popular 2G standards included GSM, CDMA, and TDMA. 3G networks supported faster data transmission, allowing services like internet and fax on mobile. 4G networks are designed to be fully IP-based, supporting higher speeds up to 100 Mbps and integrating technologies like WiFi and Bluetooth to provide connectivity anywhere. 4G aims to greatly increase network capacity and support real-time multimedia applications.

    Copyright:

    Attribution Non-Commercial (BY-NC)
    Download as PPT, PDF, TXT or read online from Scribd
    Download as ppt, pdf, or txt
    You are on page 1of 26

    By: Ajit Rathee 2k7-MRCE-ECE-069

    1G 2G 3G 4G

    AMPS(Advanced Mobile Phone System)


    TACS(Total Access Communication System) ETACS(Extended Total Access Communication System)

    Digitized not only the control link but also voice signal The new system provided better quality and higher capacity at lower cost to consumers

    GSM(Global System For Mobile Communication) CDMA(Code Division Multiple Access)


    TDMA(Time Division Multiple Access)

    These promise faster communication services ,including voice, fax and internet,anytime and anywhere with seamless global roaming.

    3G is not very cheap but it is worthwhile for the users who need connectivity on the move. Since 3G is a packet based technology therefore user is charged for amount of data transferred. 3G network is available on the move, unlike wi-fi, which is limited to only a few meters.

    The IP address is based on IPv6. IPv4: X.X.X.X example: 216.37.129.9 IPv6: 4 IPv4
    (32 bits)

    (128 bits)

    example:
    216.37.129.9 , 79.23.178.229 , 65.198.2.10 , 192.168.5.120
    home address care-of address mobile IP address local network address

    HAPS

    Satellite

    Wireline or Wireless Networks (Internet) Services

    GSM

    Care-of Add. IP Add. Mobile


    UMTS Content

    WLAN

    Bluetooth

    ADSL

    Home Add.
    TDMA FDD WCDMA TDCDMA

    Care-of Add.
    OFDM TDD

    OFDM

    Unspecified

    Direct Sequence Frequency Hopping

    Very wide area

    Wide area

    Metropolitan area

    Local area

    Personal area

    4G networks are all-IP (Internet Protocol) based heterogeneous networks


    This will allow users to: Select any system at any time and any where Use Multiple systems at the same time (e.g. GPS and WLANs and CDMA) A wide range of applications using only one 4G integrated terminal

    Support interactive multimedia services: teleconferencing, wireless Internet, etc.


    Wider bandwidths, higher bit rates.

    Global mobility and service portability.


    Low cost.

    Scalability of mobile networks (>10 times the capacity


    of 3G).

    A single physical terminal with multiple interfaces to access the different wireless networks Advantages: Improve call completion Expand coverage area Reliable coverage in case of network, link or switch failure Disadvantages: Complexity in the hardware of the device Handoff Mechanism: Performed by the user, device or network

    3G (including 2.5G)

    4G

    Major Requirement Driving Architecture


    Network Architecture Speeds Frequency Band

    Predominantly voice driven data was always add on


    Wide area cell-based 384 Kbps to 2 Mbps Dependent on country or continent (1800-2400 MHz)

    Converged data and voice over IP


    Hybrid - Integration of Wireless LAN (WiFi, Bluetooth) and wide area 20 to 100 Mbps in mobile mode Higher frequency bands (2-8 GHz)

    Bandwidth
    Switching Design Basis Access Technologies Forward Error Correction

    5-20 MHz
    Circuit and Packet W-CDMA, 1xRTT, Edge Convolution rate 1/2, 1/3

    100 MHz (or more)


    All digital with packetized voice OFDM and MC-CDMA (Multi Carrier CDMA) Concatenated coding scheme

    Component Design

    Optimized antenna design, multi-band adapters


    A number of air link protocols, including IP 5.0

    multi-band adapters Smarter Antennas, software multiband and wideband radios


    All IP (IP6.0)

    IP

    From : www.mobileinfo.com

    THANK YOU

    QUERIES?

    You might also like