Combined changes
Besides simple handoff procedures
(changing a single parameter), com-
plex handoff procedures are also per-
missible (changing several parameters
at the same time). In earlier versions of
(E)AMPS test programs there were im-
permissible parameter combinations.
There is no such restriction in the IS-
136 MS-TEST program: all parameters
allowed in handoff procedures can be
changed in any combination.
Examples:
1) The mobile is in a digital TC. Change DTC, DVCC, SLOT, POWER
LEVEL, TIME ALIGNMENT and Rate; this is the most complex handoff in
the digital mode of a mobile.
2) The mobile is in an analog TC. Change FVC, SAT FREQ and POWER
LEVEL; this is the most complex handoff in the analog mode of a mobile.
3) Of course it is possible to change from an analog TC to a digital one and
vice versa.
These parameters can be combined in
any way for handoff procedures
Analog TC Digital TC
FVC DTC
SAT FREQ DVCC
POWER LEVEL SLOT
POWER LEVEL
TIME ALIGNMENT
Rate
10
Handoff Procedures IS-136 MS
10-29
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