Transcript Document 7412554

A study of Unlicensed Mobile
Access(UMA) Technology
• Presenter: Khanh Nguyen
• Instructor: Chin-Chih Chang
A study of Unlicensed Mobile
Access(UMA) Technology
• Introduction
• Characteristics of UMA
• Architecture
• UMA Applications
• Conclusion
UMA Participating Companies
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Alcatel
British Telecom
Cingular
Ericsson
Kineto Wireless
Motorola
Nokia
Nortel Networks
O2
Research in Motion
Rogers Wireless
Siemens
Sony Ericsson
T-Mobile US
Why UMA?
Unlicensed Mobile Access (UMA)
technology enables access to GSM
and GPRS mobile services over
unlicensed spectrum, including
Bluetooth™ and WiFi™.
Architecture Overview
Protocols
• Standard 3GPP Protocols
• Standard Unlicensed Radio Access
Protocols
• Standard IP-based Protocols
• UMA Specific Protocols
– UMA-RR
– UMA Radio Link Control
UMA Security Mechanisms
How UMA Technology Works
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 R1.0.4—Clean 5/16/2005
• Stage 3 Specification
(Protocols)
– UMA Stage 3 R1.0 9/1/2004
– …….
– UMA Stage 3 R1.0.4—Clean 5/16/2005
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
References
[1] UMA Sprecifications UMA Technology - Extending Mobile
Services to Unlicensed Sprectrum
http://www.umatechnology.org/specifications/index.htm
[2] Philips Electronics Announces Complete Unlicensed Mobile
Access (UMA) Semiconductor Reference Design Mitsui & Co.
Venture Partners http://www.mitsuivp.com/cgibin/WebObjects/f1f2557f0f.woa/wa/read/102ef056b5c/
[3] Alex Goldman Wi-Fi /Cellular Convergence: Evaluating UMA
Wi-Fi Planet http://www.wifiplanet.com/news/article.php/3463271
[4] Glenn Fleishman Unlicensed Mobile Access on Verge of
Deploying WNN Wi-Fi Net News
http://wifinetnews.com/archives/004825.html
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.
Questions ?