Specifications

Physical Organization
Introduction
1-8 68P81095E55-E August 08, 2000
Physical Organization
The iDEN system consists of many components and pieces of physical hardware.
The components and hardware are located throughout the local service coverage
area. To simplify integration, the equipment uses industry standards for physical
size, power requirements, and interface connections wherever possible. Each major
component listed has sub-systems that perform more specific tasks. The layout of a
simplified iDEN network is shown in Figure 1-1. Each network element is discussed
individually.
Figure 1-1 Simplified iDEN Communications Network
Digital Access
Cross Connect
(Facilities)
Internet
Base Site Controller
(Interconnect routing
and management)
Mobile Switching Center
(Switch-Features)
Public Switch Telephone Network
(other provider network)
HLR
Interconnect
Services, Features
(may be remote)
VLR
Interconnect
location
tracking
HLR
VLR
Talk
Listen
Dispatch
half-duplex
Interconnect
full-duplex
Messaging
(SMS)
Fax Telephone
Operations and Maintence Console
(Control Interface)
Metro Packet Switch
(Dispatch/data router)
Mobile Data Gateway
(Packet Data
Internet interface)
City
Dispatch Application
Processor
(Dispatch routing
management)
Circuit Switch/Packet Data
Dispatch
Services,
Features,
Fleet and
Groups
Dispatch
mobile
location
tracking
Enhanced Base
Transceiver System
(EBTS)
T. N. French