Table of Contents
Advertisement
User Manual
Airbridge cBTS3612 CDMA Base Station
channel, it receives reverse messages on the air, and forwards them to BSC
through the main control software.
Dedicated channel sub-module: under the control of the control & management
l
sub-module, it sets up or releases traffic channel. For the forward dedicated
channel it receives data frames from BSC and sends them on the air at correct
time according to the power set in BSC. For reverse dedicated channel, it
receives reverse frame on the air interface, adds some information and sends
them to BSC.
2) Operation & maintenance
Public part: process messages related to OMU interface, such as log
l
management, board self-check, public query, interface tracing, board software
loading, link test, and related functions.
Private part: perform channel processing parameter configuration, status
l
management, alarm collection, alarm processing and reporting.
3.2.6 BRDM Software
I. Function
BRDM software is used to relay BTRM signaling and control baseband data. The
main functions are:
Relay of signaling for up to 36 BTRMs (including main control signaling and
l
operation & maintenance signaling).
Receiving OMU configuration command, controlling the relay of forward &
l
reverse baseband data.
II. Structure
The structure of BRDM software is shown in Figure 3-7.
Signaling trunk
Figure 3-7 Structure of BRDM software
III. Introduction to software units
1) Signaling relay
This part performs BTRM signaling relay function, including two parts: BTRM
signaling relay and relay interface matching. According to the format and protocol
BRDM software
3-9
3 Software Architecture
Operation &
maintenance
System Description
Advertisement
Table of Contents
