Andrew ION-B Series, Руководство пользователя

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13 MN024-010
B equipment provides RF splitters/combiners, cross band couplers, attenuators, and
duplexers for UL/DL paths, thus allowing maximum in design fl exibility;
• high reliability: high MTBF (Mean Time Between Failure).
1.4 ION-B Typical Applications
Due to its unique features, the ION-B is an ideal solution for radio coverage in a variety of
situations:
• Multi-operator shared infrastructures: each mobile operator has its own carrier
which needs to be transported without interfering the others. The ION-B is capable
of transmitting multiple carriers simultaneously while providing independent level
adjustments for each of them, ensuring maximum performance and reducing
infrastructure costs.
• High rise buildings: RF signals from surrounding macrocells or external BTSs are usually quite
strong inside high rise buildings and can cause so much interference that indoor mobile
communications often become impossible. By strategically placing antennas along the
exterior walls of the building, the signal to noise ratio can be optimised. This interference
control solves many problems, such as the “ping pong” effect that sometimes is
experienced when a mobile frequently changes from indoor to outdoor coverage.
• Exhibitions, conventions, and shopping centres: the critical aspect of these environments
is their high traffi c loads, which are furthermore also highly variable. Thus, the main goal
in these cases is to set up radio coverage enabling the effective management of these
variable traffi c loads, with neither undervalued nor overvalued infrastructure expenses.
A unique feature of the ION-B is that RF frequencies can be allocated quickly when and
where they are needed, thus reducing implementation costs. This makes the ION-B an
ideal solution for temporary or last minute requests (such as conferences).
• Airports: require both modular and fl exible radio coverage in order to meet their current
needs while also foreseeing future expansions. The ION-B is able to manage heavy
traffi c loads, providing a high level of quality with minimum environmental impacts, its
modularity also allows for future expansions.
• Corporate buildings: inside a corporate building, frequent disruptions during mobile
communications may limit business transactions. These environments are often complex
and densely populated while having specifi c requirements: heavy traffi c capacity, high
expectations regarding quality of service, full compatibility with wireless standards and
future expandability. The ION-B guarantees high quality radio coverage in all of the
above conditions and maintains maximum fl exibility while managing any possible traffi c
conditions.
• Subways and densely populated metropolitan areas: These areas are distinguished
by large surface areas, and may require RUs to be placed far away from the BTSs.
The ION-B guarantees signal integrity for distances up to 3km, while through the