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Prediction of number of received channels (in downlink)
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Figure: Received number of channels in MS
(downlink)
For each pixel (mobile
station) the number of received carriers and channels is determined. A carrier
is received if the Rx power in downlink is above a threshold defined individually
for each MCS (or service).
For the handover analysis the number of carriers
received above a given threshold is very important because the number of
available alternatives can be seen easily.
In TDMA (GSM, EDGE) the number of channels is the number of received carriers
multiplied with the number of timeslots on each carrier. The number of channels
must not be constant on each carrier, i.e. the first carrier in a cell can
have 7 channels (time slots) and the second carrier in a cell can have 8 channels
(time slots).
These maps are determined individually for each MCS (and/or service).
The capabilities of the mobile stations (defined individually for each MCS
or service) are additionally considered (i.e. MS niose figure, MS antenna
gain, body losses,....).
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