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MAC Parameters
The AU MAC menu includes the following options:
Show
Select this option to view the current values/options of the MAC (Media
Access Control) parameters.
Update
Select this option to update any of the MAC parameters. The MAC
parameters are:
Base Station ID
The Base Station ID is the unique identifier of the AU/µBST. An SU
can be authenticated by the AU/µBST only if its Base Station ID
and Base Station mask match the Base Station ID configured for the
AU/µBST. A change in the Base Station ID will take effect only after
resetting the AU/µBST.
The Base Station ID is comprised of 6 groups of up to three digits
each, where the range for each group is 0 to 255. The first 3 groups
define the Operator ID, the next two groups define the Cell ID and
the sixth group defines the AU/µBST ID.
Changes in Base Station ID are applied only after reset
The default Base Station ID is 186.190.0.0.0.0
ARQ Enable/Disable
The ARQ Enable/Disable parameter controls whether to use an ARQ
algorithm for detecting errors and requesting retransmissions of
applicable unicast messages (applicable only for Best effort and Non
real time services).
The default is Disable.
Maximum Cell Radius
The Maximum Cell Radius is used to adapt various timing
parameters of the MAC to the time it takes a message to reach its
destination. This time delay is dependent on the distance between
the originating and receiving units. The timing parameters should
be adapted to the largest expected delay, which is determined from
the distance from the AU/µBST of the farthest SU served by it.
Manual Revision 1.0
AU Menu
4-37
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