ZTE Corporation R8872AS1900 Manuale Utente
ZXSDR R8872A Product Description
10
ZTE Confidential & Proprietary
Figure 2-3 R8872A Software Architecture
The Operating and Maintenance (OAM) sub-system is the application layer. Its main
functions are software downloading, configuration, management, system maintenance
and measurement.
The Operation Support Sub-system (OSS) is the supporting layer in this entire
framework. It is a hardware independent layer that provides basic functions such as
scheduling, timer, and memory management, communication, sequencing control,
monitoring, alarming and logging.
The Board Support Package (BSP) provides device driver & initialization and supports
basic functions like alarming and monitoring. It also provides the related interfaces and
services to the Operating System.
2.4
Functionality
R8872A is the remote radio unit of distributed base station. The signal is transmitted/
received through R8872A to/from base band processing unit for further processing via
standard CPRI interface.
By applying the distributed system, the feeder loss will be eliminated when the radio unit
is positioned close to the antenna. The coverage is enlarged with this solution.
Hardware
BSP
OSS
Linux
OAM
SDR
Unified
Platform
Software
Application
Software
Hardware
System