Product Info

Traffic Manager
DN999099 © Nokia Corporation Draft 51 (78)
Issue 4-0 en Nokia Proprietary and Confidential
Note
Note
Note
2. Click the OK button to send the information to the BTS.
If you want to modify the allocation table at this point, you have to first delete
prior allocations. Click the right mouse button on the cell to be modified and
delete either one signal allocation, all signal allocations of a particular type or
delete all allocations for the selected port.
If you want to modify the allocations after you click OK in the Traffic Manager,
you must first run ‘Undo Commissioning’ in the BTS Commissioning Wizard.
When the link capacity restricts normal signal allocation, you can use the
‘TRXSIG on TCHs’ and combined ‘OMUSIG/ TRXSIG1’ signal types.
6.2 Signal types
OMUSIG
The BTS can have one OMUSIG which allocates 2, 4, or 8 bits in one time slot
depending on the link speed used (16, 32, or 64 Kbit/s). If a combined
OMUSIG/TRXSIG1 is used, the allocation of the OMUSIG is disabled.
OMUSIG/TRXSIG1
The BTS can have one combined OMUSIG/TRXSIG1 which allocates 2, 4, or 8
bits in one time-slot depending on the link speed used (16, 32, or 64 Kbit/s). When
a compressed Abis time-slot allocation is used, the OMUSIG/TRXSIG1 can be
located in radio time-slots 1 - 4 (starting from bit 1), which means that it overlaps
the TCHs which are reserved for TRX 1.
TCHs
The BTS must be allocated at least as many TCHs as there are TRXs installed in
it (1 - 4). Each TCH allocates two contiguous time slots (16 bits) for a single TRX,
each of which is marked with the TRX number. The TCHs are numbered from 1
to 4 in the order they are defined.