ASCOM TEMS VISUALIZATION 7.2 ENTERPRISE Brochure page 5

Detailed Investigations
Exception Analysis summarizes all GPEH messages recorded for the
selected scope and all the TEMS Visualization events generated. For se-
lected GPEH messages, users can drill down even further and count the
occurrences of different RAB types and cause values. There is no more ef-
fective way to find the root causes of network problems. Calls containing
the selected events can then be sent to Call Analysis.
Call Analysis allows drill-down to the individual call level. Calls high-
lighted in any feature can be sent to Call Analysis for in-depth examination.
Sequences of signaling messages are shown, and the reasons behind prob-
lems such as blocked and dropped calls can be investigated in great detail.
Users can follow radio measurements per call, view detailed content for
individual messages, retrieve distance and quality information, and analyze
large groups of calls can be analyzed for patterns. This extremely powerful
feature can, for example, quickly determine if all dropped calls in a cell are
generated by the same user or on the same RAB type.
Geo-location of selected events is based on measurements made by
the mobile and reported to the RNC. Areas where several cells are involved
in overlapping coverage are geo-located on the map, allowing engineers to
determine if:
ƒ Cells are providing coverage in unwanted areas and causing Pilot
Pollution.
ƒ Wanted cell coverage will still be good if, for example, the polluting cells
are down-tilted.
ƒ The reason behind Pilot Pollution is simply poor coverage.
In addition, dropped calls can be geo-located, with the number of
dropped calls in each 100m x 100m bin displayed on the map. Clicking on
a bin presents details for the drops in that bin and allows further drill-down.
TEMS™ VISUALIZATION 7.2 ENTERPRISE 5