User Manual

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User Manual
Fig. 1.1: Britecell Plus system block diagram.
1.3 Britecell Plus Features
The following lines report a brief summary of Britecell Plus main features:
• multiband 2G, 2.5G and 3G – 802.11b WLAN compatible: Britecell
Plus is completely transparent to any transmission protocol and
modulation format, and it can distribute any 2G, 2.5G, 3G wireless
standard. In addition, it allows to carry also the WLAN (802.11b/g)
service over the same infrastructure;
• modular configuration for flexible design: by properly setting some
parameters like the amount of RUs and the antenna locations, the
Britecell Plus architecture can follow the environment specific features in
order to obtain the most effective radio-coverage of the indoor area.
The modularity of the system allows easy modifications for future
growth and increasing traffic;
• easy to install: the intelligent plug & play Britecell Plus system
includes an Automatic Gain Control (AGC), that eliminates system gain
variations regardless of optical loss. This avoids the need for field
adjustments, thus reducing design, installation and optimization time.
• low-power consumption: establishing a “quasi line-of-sight
propagation” towards all mobile phones inside the area, Britecell Plus
works with low power levels. Low power levels have two great
advantages: 1) allow mobile phones to work at lower power levels, thus
limiting the radiated emissions and increasing their battery life; 2) allow
a better control of interference effects between adiacent cells.
• central supervision functions: all individual alarms of Britecell Plus
system are stored in an internal flash memory, and available to both
local and remote connections. Detailed alarm information is provided by
special software (i.e. by Supervision or Maintenance software tools)
running on a locally connected host, as well as any information about
alarm status and alarm history is available to remote connections via
TCP/IP protocols, SNMP agent, or HTTP servers. This alarm information
is visible also by means of LEDs present on the front panels of both the
MU and the RUs;
• multiple-carriers system: there are no restrictions on the number of
carriers that the Britecell Plus can convey. Obviously, the more carriers
per service, the less power per carrier;
BTS
TFLN
1
12
REMOTE
UNIT
1
4
RF interface
Two F.O. per RU