User's Manual
LGCell 4.0 System Description
2-8 LGCell 4.0 Installation, Operation, and Reference Manual PN 8100-40
620004-0 Rev. B
2.2.3 Using LGCell to Simultaneously Support Multiple
Bands/Protocols
An LGCell neutral host configuration can simultaneously support more than one fre-
quency band and/or protocol. The term “neutral host” refers to the fact: that the sys-
tem supports multiple wireless Operators, and that the equipment typically is owned
by a third-party company.
Neutral host systems are deployed in situations such as the following:
• Public microcellular applications such as airport terminals, subways/train stations,
and similar public buildings usually require that the in-building RF distribution
system infrastructure be capable of supporting any current frequency band and
protocol, and that it be future-proof.
• It is common for the same service provider to be licensed to operate in multiple
bands in the same geographical area. For example, some Asian and European ser-
vice providers have licenses in both 900 MHz and 1800 MHz bands. Some North
American service providers operate in both 800 MHz and 1900 MHz bands.
Some service providers overlay networks (i.e., 900 and 1800 MHz) to alleviate
capacity constraints.
• A building owner will often allow service providers to provide wireless service in
their building only if they cooperate and share the infrastructure equipment and
distribution system. Delays in service implementation and loss of revenue occur
when the competing service providers do not agree on how to share the equipment
and installation costs.
Additional distribution cabling infrastructure, beyond initial requirements, often is
installed to accommodate adding Operators or services or to enhance capacity by sec-
torizing the distribution equipment at a later time.
Figure 2-6 Example Neutral Host Application
LGCell Main Hub
Operator 1
RAU
Cat-5 Cable:
RAU
RAU
LGCell Expansion Hub
Op. 1 and/or Op. 2
LGCell Main Hub
Op. 1 and/or Op. 2
Installed now,
used now
Cat-5 Cable:
Installed now,
used later
Fiber Optic Cable:
Installed now,
used later
Fiber Optic Cable:
Installed now,
used now
Future LGCell Equipment
Future LGCell Equipment
LGCell Expansion Hub
Operator 1
(Operator 2 in the future)