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A study of Unlicensed Mobile Access(UMA) Technology Presenter: Khanh Nguyen Instructor: Chin-Chih Chang.

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Presentation on theme: "A study of Unlicensed Mobile Access(UMA) Technology Presenter: Khanh Nguyen Instructor: Chin-Chih Chang."— Presentation transcript:

1 A study of Unlicensed Mobile Access(UMA) Technology Presenter: Khanh Nguyen Instructor: Chin-Chih Chang

2 A study of Unlicensed Mobile Access(UMA) Technology Introduction Characteristics of UMA Architecture UMA Applications Conclusion

3 UMA Participating Companies Alcatel British Telecom Cingular Ericsson Kineto Wireless Motorola Nokia Nortel Networks O2 Research in Motion Rogers Wireless Siemens Sony Ericsson T-Mobile US

4 Why UMA? Unlicensed Mobile Access (UMA) technology enables access to GSM and GPRS mobile services over unlicensed spectrum, including Bluetooth and WiFi.

5 Architecture Overview

6 Protocols Standard 3GPP Protocols Standard Unlicensed Radio Access Protocols Standard IP-based Protocols UMA Specific Protocols –UMA-RR –UMA Radio Link Control

7 UMA Security Mechanisms

8 How UMA Technology Works

9 Specification History Stage 1 Specification (User Perspective)9/1/2004 Stage 2 Specification (Architecture) –UMA Stage 2 R1.0 9/1/2004 –………. –UMA Stage 2 R1.0.4Clean 5/16/2005 Stage 3 Specification (Protocols) –UMA Stage 3 R1.0 9/1/2004 –……. –UMA Stage 3 R1.0.4Clean 5/16/2005

10 Development Philips Electronics announced a complete Unlicensed Mobile Access (UMA) semiconductor reference design to make it easy for mobile handset manufacturers to bring UMA-enabled phones to their customers

11 References [1] UMA Sprecifications UMA Technology - Extending Mobile Services to Unlicensed Sprectrum [2] Philips Electronics Announces Complete Unlicensed Mobile Access (UMA) Semiconductor Reference Design Mitsui & Co. Venture Partners bin/WebObjects/f1f2557f0f.woa/wa/read/102ef056b5c/ [3] Alex Goldman Wi-Fi /Cellular Convergence: Evaluating UMA Wi-Fi Planet fiplanet.com/news/article.php/ [4] Glenn Fleishman Unlicensed Mobile Access on Verge of Deploying WNN Wi-Fi Net News

12 Conclusion UMA is nice technology to have;however, it might take time and a lot of effort before it becomes popular. There are not a lot of companies investing into this technology.

13 Questions ?


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