Page 117 - Antennas for Base Stations in Wireless Communications

90 Chapter Two

(a) (b)

(c)
Figure 2.22 Disguised base station antenna solutions: (a) A grp structure surrounding the
antenna (Photo courtesy of Jaybeam Wireless); (b) an integrated three-sector BS antenna
with TMAs presented as an architectural feature (Photo courtesy of Powerwave, Inc.); and
(c) a BS disguised as a tree being lifted into position (Photo courtesy of Kitting Telecom)

2.3.14.1 Site and Antenna Sharing The sharing of base station facilities
exists at several levels. Networks may share sites, but use separate
antenna structures; they may erect antennas on a common structure or
share antennas. Radio access network (RAN) sharing between operators
is becoming common in some countries. A mobile virtual network opera-
tor (MVNO) shares an entire physical network belonging to another