
Antenna Remote Electronic Tilt (RET) — FID 13019.36
General description
FID-13019.36 introduces a Remote Radio Head (RRH) with an associated RET/ALD
controller that operates the RET.
The RET consists of an actuator motor with supporting control electronics. The RET
adjusts the antenna down-tilt angle by electrically changing the antenna phase angle. By
altering the phase of the antenna signal, the RET also tilts the antenna beam.. This results
in decreased main, side and backward lobes. This overcomes the shortcomings of
mechanical tilt antennas, where the whole antenna is physically tilted. This system moves
the backward lobe in upward direction and distorts the side-lobe patterns.
AISG interface on RRH
The RRHs are equipped with an Antenna Interface Standards Group (AISG) power and
signaling interface connector that supports third party Antenna Remote Electronic Tilt
(RET) equipment. The PCS RRH 4x and 800 MHz RRH 2x are hardware ready to
support the third party RET.
Product overview for RRHs
Antenna Remote Electronic Tilt (RET) — FID 13019.36
....................................................................................................................................................................................................................................
....................................................................................................................................................................................................................................
9927 Dist BTS Outdoor
401-703-516
Issue 1
March 2012
Alcatel-Lucent – Proprietary
Use pursuant to applicable agreements
3-19