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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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