Star Networking - Huawei Airbridge BTS3612A-1900 Technical Manual

Technical Manual
Airbridge BTS3612A CDMA Base Station

8.5.1 Star Networking

I. Application scope
Star networking is widely used, especially in the densely populated urban area. Start
networking is shown in the following figure.
BSC
Figure 8-3 BTS star networking
II. Advantage
In the star networking mode, each BTS is directly connected with BSC via E1/T1
trunk line. The star networking is simple and allows convenient maintenance and
engineering.
Because the signals go through a few sections of links, the line is more reliable and
future expansion is easier.
III. Disavantage
Compared with other networking modes, star networking requires the largest number
of transmission lines.
IV. Implementation
The internal network of Huawei CDMA BSS is built on ATM platform. The logic links
of Abis interface, such as traffic link and signaling link, are carried by ATM links,
which is carried by E1/T1 links in IMA mode or UNI mode.
BTS
E1
E1
BTS
E1
BTS
8-8
System Principle
Chapter 8 BTS Configuration