Figure 53 Co-Channel Xpic - Alcatel-Lucent 9558HC User Manual

MPT-HC V2/MPT-XP in XPIC with a generic indoor unit
MPR-e
The XPIC configuration is available when MPR-e is standalone and in Single NE mode with
7705 SAR configuration.
XPIC configuration allows a generic indoor unit (e.g. 7705 SAR) to take advantage of both
double capacity and hardware redundancy. In fact, the indoor unit can exploit two times the
same radio channel doubling the total amount of traffic transported. Moreover, whenever one
of the two MPR-e fails, the indoor unit can collapse all its traffic on a single MPT. In case
remaining working MPR-e is under congestion, MPR-e QoS function will handle the
situation and high priority traffic will be served as first in accordance to the selected
scheduling policy.
It has to be noticed that this configuration offers two parallel links, but it is left to the indoor
unit the detection of radio problem/failure by the means of any kind of OAM protocol at layer
2 or 3 which will transparently pass through the radio link and are received at the other end.
Product information and planning
Figure 53: Co-channel XPIC
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