Specifications

1-4 800 MHz System Planner R4-11-4G
PRIVATE DATATAC SYSTEM FEATURES
Data Messaging Services
FLM bearer services allow:
• Host-controlled mobile device registration
• Confirmed and unconfirmed messaging
• Multiple logically addressed host sessions with message routing
• User data compression
Private DataTAC establishes data compression services when the connection
is initialized between the required Motorola Wireless Communication
Software II (MWCS II) and the Wireless Network Gateway™ (WNG). The
effectiveness of compression varies depending on the content and profile of
user messages. Data compression reduces the time required for wireless
computers and the Private DataTAC network to exchange data.
FLM Bearer Services are available with systems using one RNC controller or
a WNG for connecting to the customer host.
1.3.1.1.2 IP Bearer Service
IP messaging standardizes RF subsystem interfaces so that IP is the common
bearer service which transports user data and control information between
LAN-based host computers and mobile host computers operating on the
Private DataTAC network. End-to-end IP messaging requires a WNG to
provide connectivity to the host and MWCS II to provide connectivity to the
devices.
The WNG provides industry standard Internet Protocol (IP) routing with IP
header and data compression serving as the registered host for both IP and
FLM-based traffic. Along with the support of IP services, the WNG provides
support for the FLM protocol allowing ease of migration for existing Private
DataTAC networks to a standard IP architecture.
MWCS II supports both IP and legacy applications. The respective message
types will be detected within the MWCS II and directed to the appropriate
host. MWCS II supports a WinSock interface for incorporating IP messaging
into the mobile computer.
IP Bearer Services allow the following:
• IP group/broadcast messaging
• Unit-to-unit messaging
• User data/header compression
IP group/broadcast messaging permits users to send and receive
unconfirmed, from one-to-several data transmissions. An individual mobile
host is capable of configuring up to nine group/broadcast addresses where
eight addresses are user definable and one is reserved for All Call.
Unit-to-unit addressing allows a mobile user to address and send a message
to another mobile user on the RF network. Messages sent from a mobile
computer travel inbound to the WNG where they are redirected outbound to