 2M settings / Use of data channel Default: Fixed 1 Default: Fixed 1 TS(0) settings DIR 2 2M settings / Use of data channel Default: Fixed 1 Default: Fixed 1 TS(0) settings DIR 3 2M settings / Use of data channel Default: Fixed 1 Default: Fixed 1 TS(0) settings DIR 3 HW Database TRU control mode BCF-mode Default: BCF-mode Settings (user interface: MMIDATA software) Figure 3.72 Example of parameter planning for a transmission unit in the BTS 3.13 Parameter Planning Parameter settings/configuration is one of the aspects of UMTS transmission networks. Unlike in GSM/EDGE transmission networks, there are many parameters that need to be set. Quite a few of the parameters are dependent upon the vendor specification/equipments The majority of the parameters are related to the AXC (ATM cross connect) and RNC. Parameters are related to the application layers, transport layer, physical layers, interfaces, synchronisation and management. Thus, parameter defini- tions are made for the type of interfaces, ATM terminations and cross-connections, Internet protocols, 3.13.1 BTS/AXC Parameters Interface Equipment Parameters Parameters related to the SDH and PDH interfaces are set. For the PDH, the setting has to be done according to the standards in use, e.g. E1, T1, JT1, etc. Automatic testing features such as loopback functions also have to be set and the number of timeslots that are used for traffic related to the ATM or GSM need to be specified. The structure of the SDH increases the number of parameters that are required Transmission Network Planning and Optimisation to be set. Parameters related to physical, regeneration, multiplexer and container sections have to be planned, which mainly include assigning the IDs, enabling testing features (as in the PDH), defining the BER thresholds, etc. ATM Parameters As seen in the section above, ATM connections need quite a few parameters to be configured. Many of these parameters are related to traffic and quality of service apart from defining the parameters related to routing. Prima