文档介绍：© Prof. Willie W. Lu –
4G Mobile Technology –
Towards Open
Architecture and Open
Spectrum
Prof. Willie W. Lu,
Former Stanford Professor & Advisor of FCC-TAC
Chairman & Executive Director, USCWC
Independent Advisor & Examiner, EU/US/China/CA/etc.
E-mail : wwlu@
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©9th World Wireless Congress® San Jose Fairmont, May 14-15
Visit for more
© Prof. Willie W. Lu –
Commercial munications Laws
1. No single Radio Transmission Technology (RTT or Wireless Standard) can do both broadband
high-speed and seamless mobility
2. Low cost, high performance, easy to use, efficient spectrum utilization are key issues for
market acceptance
3. The mobile device is evolving from a traditional transmissions-specific radio system to the
future interface-base system. This future mobile terminal will be relying on Open Wireless
Architecture (OWA) platform plete openness and simplicity
Requirements for Mobile Terminal (MIT)
Open Wireless Architecture (OWA) in System Architecture supporting adaptive multiple RTTS
Open Spectrum Planning and Management – at least supporting dynamic spectrum allocation
Affordability in services and applications – low cost though not cheap
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©9th World Wireless Congress® San Jose Fairmont, May 14-15
Visit for more
© Prof. Willie W. Lu –
We have fundamental problem in the existing wireless
communication architecture, and need to reshape the
industry based on open architecture!
Summary in Advance
4G can support high-speed (up to 100Mbps), but high-speed is not 4G
4G will focus on Open Wireless Architecture (OWA) technology instead of purely high-speed transmission
Mobile WiMAX can NOT support seamless mobility, but is OK for nomadic or limited mobility
TD-SCDMA has many technical issues to be solved: Network Optimization and Further R&D will take at least ten years
Wireless Mobile will face big challenge if the underlying wireless transmission architecture is not open
Open