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1. Configuring WAN-4G 4
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1CONFIGURING WAN-4G
1.1 Overview
1.1.1 Brief Introduction
The fourth generation (4G) of mobile communication technology is a kind of new mobile communication technology.
with a theoretical maximum data transmission rate of 100 Mbps, 4G network can support such high-bandwidth
applications as HD video transmission and satellite communication. The following gives a description of some basic
concepts involved in 4G function configuration.
1.1.2 Basic Concepts
APN
The Access Point Name (APN) determines the access mode through which the user accesses the 4G network.
Currently, Qtech devices support configuration of 3GNET.
PCO
User name and password.
Track
A Track object can track whether an IP address is reachable and whether an interface is up. The Track function
separates the object to be tracked from the module that is interested in the status of this object. When the status of
the Track object changes, track function modules can adopt different actions.
1.1.3 Working Principle
The network structure of the 4G mobile system can be divided into three layers: physical network layer, intermediate
environment layer and application network layer. The physical network layer provides the access and routing
functions, which are completed by the combine format of the wireless network and core network. The intermediate
environment layer provides the function such as Qu’s mapping, address translation and completeness management.
The interface between the physical network layer and the intermediate environment layer and its application
environment is open. It facilitates development and provision of new applications and services, provides seamless
and high-rate wireless services, and runs on multiple bands.
The configuration commands described here can implement the 4G interface communication functions of Qtech
devices.
1.1.4 Applications
4G integrates 3G and WLAN and can transmit high-quality video images. Its image transmission quality is equivalent
to that of high-definition TV. The 4G system supports a download speed of 100 Mbps, a speed 2,000 times faster
than that of current dial-up Internet access, and an upload speed of 20 Mbps, which can satisfy the requirements of
almost all the users for wireless services. In addition, 4G network can be deployed in places not covered by DSL and
cable TV modems and then expanded to the whole region. Obviously, 4G has incomparable superiority.
1.2 Configuring WAN-4G
To configure WAN-4G, you need to configure the following aspects: dialing function, 4G network access mode
selection, protocol status of associated master interface, dial-on-demand, and anti-impact.
1.2.1 Single Card and Single Access Dialing Function
1.2.1.1 Configuration steps
