The Telecommunications Industry Association (TIA) recently adopted a specification based on QUALCOMMs  High Data Rate (HDR), a cost effective, high-speed, high-capacity wireless technology.

The HDR system is optimized for packet data services, with a flexible architecture based on IP protocols. HDR can overlay an existing wireless network or work as a stand-alone system. HDR unleashes Internet access by providing up to 2.4 Mbps in a standard bandwidth 1.25 MHz channel that is unprecedented in systems capable of fixed, portable and mobile services.

HDR, known as TIA/EIA/IS-856 "CDMA2000, High Rate Packet Data Air Interface Specification" is also known as 1xEV.

The 1xEV specification was developed by the Third Generation Partnership Project 2 (3GPP2), a partnership consisting of five telecomnunications standards bodies: CWTS in China, ARIB and TTC in Japan, TTA in Korea and TIA in North America.

The 1xEV technology is so versatile it can be embedded in handsets, laptops, notebooks and other fixed, portable and mobile devices. It can support e-mail, web browsing, e-commerce, telematics and many other applications. Imagine using your laptop to download office files while waiting between planes.

That's just part of what 1xEV offers:

• Air link provides up to 2.4 Mbps in a dedicated 1.25 MHz channel
• Packet data design results in greatest spectral efficiency Flexible, IP-based architecture enables multiple implementation methods
• Compatible with existing CDMA Networks

Operator Benefits

1xEV is so flexible, it can be deployed as a stand-alone system, side-by-side with an existing or future voice system, or integrated into a current CDMA voice system. And because it installs easily using off-the-shelf retail components, consumers can set up the technology themselves, allowing operators to reduce costly, on-site service.

• 1xEV is the technology that helps you deliver high-performing, more cost-effective wireless data services to customer around the world.
  The 1xEV technology is compatible with CDMA voice systems and allows for side-by-side deployment to complement existing cellular/PCS networks. Because 1xEV can share cell sites, towers and antennas of these networks, you'll be able to deploy it more rapidly and get more out of the system you already have.
  
  
  Air Link
  HDR's highly efficient Air Link design achieves the type of data rates and performance levels you would only expect to see in next-generation technologies. Whether you are using fixed, portable or mobile applications.
  
  Optimized Throughput
• Use of a single 1.25 MHz channel optimized for packet data results in greatest spectral efficiency
• Peak data rate of 2.4 Mbps on the forward link and 307 kbps on the reverse link provides unprecedented speed
• Average throughput on a loaded sector is an estimated 600 kbps on the forward link and 220 kbps on the reverse link
• Dynamically assigned data rate adjusts as rapidly as every 1.67 mSec, providing every subscriber with the best possible rate at any given moment

Separation of Voice and Data

• HDR's approach places data and voice on separate carriers allows better optimization for each, therefore higher capacity for each
• Simplifies system software development and testing
• Eases system operation and maintenance
• Avoids difficult load-balancing tasks
• Ideal data design complements existing and future voice networks
• Dual-mode device can be integrated to provide optimum voice and data services
  
  

Stand-alone System

• Decentralized option allows for stand-alone system deployment using off-the-shelf-IP backbone equipment.