• 3g Forensics


  • GSM


    GSM Cell selection and reselection

    In GSM the mobile station (phone) can operate in two modes: idle mode and dedicated mode. In the idle mode, the the MS monitors the broadcast control ...

    GSM Frequencies and Frequency Bands

    Although it is possible for the GSM cellular system to work on a variety of frequencies, the GSM standard defines GSM frequency bands and frequencies for ...

    GSM logical and physical channels

    GSM uses a variety of channels in which the data is carried. In GSM, these channels are separated into physical channels and logical channels. The ...

    GSM handover or handoff

    One of the key elements of a mobile phone or cellular telecommunications system, is that the system is split into many small cells to provide good frequency ...

    Each base-station also has its own BSIC, this code is at all times transmitted on the broadcast channel, so the Mobile Stations can distinguish between base stations. The BSIC is composed of a 3-bit ...