• 3g Forensics


  • UMTS


    3GPP UMTS

    Universal Mobile Telecommunications System is the third generation (3G) successor to the second generation GSM based cellular technologies which also include GPRS, and EDGE. Although ...

    CSurv M-Tek caters for the location of sites with multiple base stations on the same PSC and the identification of the RF footprint of such cells.

    As the deployment of UMTS/WCDMA systems continuous to grow all over the world, new capabilities are being added to the system, and new services and applications, such as high speed data, video streaming, video broadcasting, push to talk, and voice over IP, are being provided or evaluated by 3G operators. In order to provide 3G services in a most economical way, 3G operators have been considering or deploying multiple carriers in their networks to meet these ever increasing demands. ...

    Ec/Io 


    Ec/Io

    Used to represent the ratio of the average power of the pilot channel, to the total signal power.

    Ec
    The ratio of received pilot energy

    Io
    ...

    Many people would agree that GSM (2G) and UMTS (3G) articles are littered with confusing and unintuitiven acronyms Here we list some of the commonly used acronyms related to UMTS signal levels. The ...

    UMTS / WCDMA channels

    The data carried by the UMTS / WCDMA transmissions is organised into frames, slots and channels. In this way all the payload data as well as the control data can be carried ...

    UMTS WCDMA handover / handoff

    Handover or handoff is as important for UMTS as any other form of cellular telecommunications system. As with any other cellular telecommunications system it is ...

    The use of CDMA, code division multiple access, in the form of Wideband CDMA, WCDMA for use with the 3G UMTS telecommunications system marked a distinct change in the type of technology used for the ...

    UMTS / WCDMA modulation

    The modulation schemes used within the CDMA signal format have been chosen to optimise the performance of the overall UMTS, WCDMA system. One major driver that influenced ...
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    UMTS / WCDMA Network Architecture

    The UMTS network architecture is required to provide a greater level of performance to that of the original GSM network. However as many networks had migrated ...
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    UMTS / WCDMA radio air interface

    Physical layer within UMTS / WCDMA is totally different to that employed by GSM. It employs a spread spectrum transmission in the form of CDMA rather than the ...

    UMTS TDD / TD WCDMA

    UMTS TDD (Universal mobile telecommunications system - time division duplex) is a growing cellular technology. Although UMTS TDD or TD WCDMA is not as widely deployed ...

    TD-SCDMA, is the 3G UMTS TDD system deployed in China.

    TD-SCDMA is an additional TDD version of UMTS. Devised in China, the system provides a number of advantages in several applications. TD-SCDMA ...