Adaptive Equalization; 1+0 Repeater (With Mpt-Hc V2, Mpt-Xp And 9558Hc Only); Figure 52 1+0 Repeater Configuration - Alcatel-Lucent 9558HC User Manual

Adaptive equalization

1+0 Repeater (with MPT-HC V2, MPT-XP and 9558HC only)

MPR-e
Viewed Tx power ranges always match the capabilities of the MPT-HC V2/MPT-XP/
9558HC for a given modulation. When modulation is changed, the CT automatically adjusts/
restricts Tx power to be within the valid range.
Adaptive equalization (AE) is employed to improve reliability of operation under dispersive
fade conditions, typically encountered over long and difficult paths.
This is achieved through a multi-tap equalizer consisting of two registers, one with feed-
forward taps, the other with feed-back taps. Each of these registers multiply successive
delayed samples of the received signal by weighting coefficients to remove propagation-
induced inter-symbol interference.
The 1+0 repeater configuration can be setup with two MPR-e placed back-to-back as shown
in Figure 52.
MPR-e
MSS-4/8
MPT Extended Power Unit /
Figure 52: 1+0 Repeater configuration
MPR-e
Data
DC DC
MPT Power Unit /
Battery
Product information and planning
MSS-4/8
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