EDGE, HSPA, LTE - The mobile broadband Advantage

This paper discusses the evolution of EDGE, HSPA enhancements, 3GPP LTE, the capabilities
of these technologies, and their position relative to other primary competing technologies.


The following are some of the important observations and conclusions of this paper:



1. GSM/UMTS has an overwhelming global position in terms of subscribers, deployment, and services. Its success will marginalize other wide-area wireless technologies.
2. GSM/UMTS will comprise the overwhelming majority of subscribers over the next five to ten years, even as new wireless technologies are adopted.

3. HSPA Evolution provides a strategic performance roadmap advantage for incumbent GSM/UMTS operators. HSPA+ (in 5+5 MHz radio allocations) with 2x2 MIMO,successive interference cancellation, and 64 Quadrature Amplitude Modulation (QAM) is more spectrally efficient than Worldwide Interoperability for Microwave Access (WiMAX) Wave 2 with 2x2 MIMO and Evolved Data Optimized (EV-DO) Revision B.
4. LTE specifications are being completed, and the 3GPP OFDMA approach matches or exceeds the capabilities of any other OFDMA system.
5. OFDMA approaches may provide higher spectral efficiency and higher peak rates.However, HSPA+ systems using advanced techniques are expected to nearly match the performance of highly optimized OFDMA-based approaches such as LTE in 5+5 megahertz (MHz) radio allocations.

6. Compared to UMTS/HSPA/LTE, competing technologies have no significant deployment cost advantages.
7. EDGE technology has proven extremely successful and is widely deployed on GSM networks globally. Advanced capabilities with Evolved EDGE will more than quadruple current EDGE throughput rates.
8. UMTS/HSPA represents tremendous radio innovation and capability, which allows it to support a wide range of applications, including simultaneous voice and data on the same devices.
9. The high spectral efficiency of HSPA for data and WCDMA for voice provides UMTS operators an efficient high-capacity network for all services. In the longer term,UMTS allows a clean migration to packet-switched voice.
10. In current deployments, HSDPA users under favorable conditions regularly experience throughput rates well in excess of 1 megabit per second (Mbps). Planned HSDPA enhancements will increase these peak user-achievable throughput rates, with vendors already measuring in excess of 3 Mbps on some commercial networks.


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