This course by PTT introduces the provision of a telephony service over the second generation mobile system GSM.
The GSM course begins by describing the role of, and the interaction between, the components of a GSM network when calls are made to and from a mobile and a telephone in the fixed line PSTN network. Methods of keeping track of the location of mobile devices are described. The way in which information is transferred between mobiles and base station is described. The role of the various protocols employed in GSM networks is described and the application of C7 signalling in a mobile network discussed.
- Describe the architecture of a GSM network and its component parts
- Describe telephony services offered by GSM service providers
- Explain how calls to and from the PSTN (Public Switched Telephone Network) are handled
- Describe the radio communications between a user's mobile and a GSM mobile operator's fixed network
- Describe the GSM methods for keeping in touch with mobiles as they move with reference to handover, roaming and location updates
- Describe the TDMA multiframe structures used in GSM radio channels and the role of the various channels
- Describe the role of, and relationship between, the various protocols used in GSM systems
- Describe the application of MAP and ISUP signalling messages to location tracking, call establishment and handover