Value range: Check box, including options 0~7.
Content: Network Color Code, to be sent in
system messages 2 and 6. It lists NCC that need be measured by MS. If a
neighbor cell with NCC permitted, MS will report M.R. Of the neighbor cell to
the network.
Recommendation: Subject to the concrete
conditions.
In
working status, MS needs to measure adjacent cells BCCH signals and report them
to network. But each report can only include max. six adjacent cells. Thus it
is necessary to make MS only report the potential target cells for handover,
instead of reporting all according to the signal level (usually MS does not
report the signals of cells from other GSM
PLMN). The above function can be implemented by making MS only measure the
cells whose NCC are selected. Parameter “NCC Permitted” lists the NCC of the
cells that MS needs to measure.
BSIC
is transmitted continuously on SCH of each cell and the higher three bits of
BSIC are NCC, therefore, MS only needs to compare the measured NCC of the
adjacent cell with parameter NCC Permitted. If it is in this set, MS will
report it to BTS; otherwise it will discard the measurement result.
Note:
Improper setting of this parameter will lead to lots of call drops.
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