User's Manual Chapter 13
Table Of Contents
Chapter 7: Operational Description
AT&T Wireless Services
7-83
FCC Type Acceptance Application
10991 Rev. 1.0 7/6/99
provides the PWAN interface to the Wireless Service Management
System (WSMS), which coordinates service management. Finally, the
Switch Element Management System (SEMS) manages the LDS. Each
network management system (WNMS, WEMS, WSMS and SEMS) is
deployed in a Fixed Wireless Service Network Operation Center (FWS
NOC).
Figure 7.1— PWAN Telephony Architecture
FWS Network Operations Center
IDT:
Integrated Digital Terminal
LDS:
Local Digital Switch
RU:
Remote Unit
SEMS:
Switch Element Management
System
WEMS:
Wireless Element Management
System
WNMS:
Wireless Network Management
System
WSMS:
Wireless Service Management
A Interface
T Interface
T Interface
RU
RU
P Interface
M Interface
PSTN
Csw Interface
5ESS
LDS/
IDT
Base
Station
Base
Control
Base
Radio
DS0
DS0
DS0
DS1
DS1
PWAN Network Element
AT&T
Private
Network
SEMS
AT&T
Private
Network
O Interface
WSMS
WNMS
WEMS
SL Interface