ND SatCom SKYWAN IDU 7000, Manual

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56 Network Design and Engineering Guide 2010-10-26
General Carrier Design
TDMA Carrier Design with ’TDMA Calculator’
The GUI is providing one main screen for general parameter (left hand) and channel specific
parameter (right hand), each with an input and an output are. The input parameter section
specifies the values to use; in the output parameter section the results are shown after a cal-
culation is performed.
Figure 2-39 TDMA Calculator GUI
1
Input sections marked red.
2
screenshot displays integrated Sky NMS TDMA Calculator.
The necessary input is the TDMA frame structure and the user traffic mix which is estimated
for each carrier. The figure 2-39 gives an overview of the input fields in the ’TDMA Calculator’
tool. On the lefthand side the section ’General Data Input’ and on the right the section ’Data
Input per Frequency Channel’. Detailed descriptions for the particular fields are given in
chapter 2.6.1 and chapter 2.6.2. For each channel input data can be specified separately.
When starting the
Sky NMS integrated ’TDMA Calculator’, input fields are pre-defined either
with values requested from Sky NMS for the corresponding configuration profile or with default
values.
Below the ’General Data Input’ section and righthand from the ’Data Input per Frequency Chan-
nel’ the output fields can be found. Detailed descriptions for the particular fields are given in
chapter 2.6.3.
The TDMA Calculator opens with data either specified in the invoking IDU profile or pre-defined
as default input values. If the user finished a calculation, the results can be exported into the
profile by clicking button ’Apply to Configuration Profile’.
The lastly stored input values of the Configuration Profile will be preset when the TDMA Calcu-
lator is opened again.