RBS 2206 BTS

RBS 2206 BTS

- Thosindu Tharaka

General Architecture:
The RBS 2206 is a member of the RBS 2000 family for indoor applications, with up to six double
Transceiver Units. The RBS 2206 is designed to be transported as a fully-assembled cabinet to the site. All units in the cabinet are easily accessible from the front of the cabinet, which means that the cabinets can be mounted side by side with their backs against a wall.
RBS 2206 BTS consists with several functional modules. The RBS 2206 is a high-capacity indoor base station. Either 900 MHz or 1800 MHz BTS the general architecture of both are same in physical and functional wise. The modules of RBS 2206 BTS are positioned as mentioning below.

ACCU

C
D
U

FCU

DC
Filter

C
D
U

C
D
U

CXU

d
T
R
U

d
T
R
U

d
T
R
U

d
T
R
U

d
T
R
U

d
T
R
U

IDM

P P P P D
S S S S X
U U U U U

Main Features of RBS 2206:
The RBS 2206 can support the following features:
• 1, 2 or 3 sectors in one cabinet using CDU-F or CDU-G
• Co-siting (antenna sharing) with TDMA or WCDMA systems
• Discontinuous transmission/reception
• Duplex filters
• Dynamic power regulation
• Encryption/ciphering
• EDGE (hardware prepared)
• External alarms

• Frequency hopping
• Positioning with GPS/LMU
• Radio configurations supported on 800, 900, 1800 and 1900 MHz
• Receiver diversity
• Transmission Interface; for following interfaces
T1 1.5 Mbit/s, 100 Ω, with internal synchronization
E1 2 Mbit/s, 75 Ω, with PCM synchronization
E1 2 Mbit/s, 120 Ω, with PCM synchronization
• Wide range power input 120 - 250 V AC

Variations:
There are three versions of RBS 2206 cabinets;
 -48 V to -60 V DC
 120 - 250 V AC/ +24 V DC, 50/60 Hz
 +24 V DC (without PSUs)

Hardware Modules:
Mainly RBS 2206 cabinet contains the radio equipment, power supply and the fans for cooling.
Battery backups should be housed outside the cabinet. The main modules of the BTS are as follows. ACCU (AC Connection Unit):

The ACCU handles distribution and connection/disconnection of the