CDMA Network Security
As wireless data networks become increasingly prevalent, new possibilities and challenges continue to emerge. Security becomes key to delivering solutions that meet today’s demand for mobility. Verizon Wireless has been at the forefront of offering secure wireless broadband solutions that minimizethe security risk to personal and corporate data. Verizon Wireless implements many aspects of innovative and commercially available methods for securing data.
This document focuses on secure mobile data?the Verizon Wireless mobile data network features that enable mobile users to enjoy secure access to hosted and enterprise-wide applications. Voice services are not covered.
2. Security Overview
Protecting corporate network assets is an ongoing task for IT professionals. Increased worker mobility and mobile workers’ needs for immediate, secure access to critical business information add challenges to maintaining network security. Mobility benefits all, but it can introduce security risks.
Some of today’s top security issues and concerns are:
- Unauthorized systems and network access
- Auditability and compliance
- Customer data breaches
- Internal and external sabotage
- Theft of intellectual property and confidential business information
- Cost of mobile device administration
The following diagram illustrates many elements critical to mobile data security.
This white paper explains the security features, capabilities, and benefits of the following areas in the Verizon Wireless mobile data network:
- Air interface
- Access network
- Core network
3. CDMA Network and Technology Overview
The core network of the Verizon Wireless mobile data network has many of the same components found in a typical corporate network, and managing these components requires similar techniques and practices that IT professionals commonly use in their own networks. The difference between the Verizon Wireless mobile data network and a typical network is found in the access network. It’s in the access network where users are granted entry into the overall mobile network and where maintaining high security and access protocols become paramount.
The following diagram illustrates a simplified view of the Verizon Wireless CDMA2000 1x data network containing both 1xRTT and 1xEV-DO data structures. The Verizon Wireless mobile data network has two parts: the access network and the core network.
3.1 CDMA2000 1xRTT and 1xEV-DO
Over time, more and more demands have been made on the capabilities of corporate networks. Workers want more mobility; secure, high-speed access; and an extension of applications across the enterprise, all of which can strain current IT capabilities.
Verizon Wireless understands these demands and has constantly improved its mobile data network to offer increased mobility, access, and applications. This process is ongoing, but it pays to see what’s happened before to gain a greater appreciation of the capabilities of today’s mobile data network.
Second-generation (2G) CDMA-based wireless networks, known as cdmaOne, have proved their effectiveness in delivering high-quality voice traffic to subscribers.
In response to subscriber growth and demand for data services that require high-speed access, the third-generation (3G) wireless networks, known as CDMA2000 and comprising 1xRTT and 1xEV-DO, were implemented.