1| FCC Model City Workshop | MMB |April 15, 2014 COPYRIGHT © 2014 ALCATEL-LUCENT. ALL RIGHTS RESERVED. Technologies for 3.5 GHz Shared Spectrum Milind M. Buddhikot Wireless Research Alcatel-Lucent Bell Labs Because expressing how dumb that was in words just doesn’t work

COPYRIGHT © 2014 ALCATEL-LUCENT. ALL RIGHTS RESERVED | FCC Model City Workshop | MMB | 2 End-to-End Architecture for 3.5 GHz Small Cell with Spectrum Sensor and Operting in PAL and GAA but no licensed band support Location 12 Location 83 Location 3 2 Location 47 Other Fiber, Cable Operators Federal Xmitters 2 Federal SAS 1 2-Way API With Information Obfuscation Commercial SAS Federal Secure Network Loc5 Loc6 Loc7 Domain SAS Proxy Small Cell with Spectrum Sensor and Operting in PAL and GAA with or without licensed band support Buildings with Small Cells T1T1 T2T2 Spatial map Sensor Samples Operator RAN SON Server Sensing information Sharing API 3 Location 1 Macro Cell Small Cell with Spectrum Sensor and Operting in PAL and GAA Location 2 Location 5 Location 3 Location 4 Sensor Location 5 Cellular Operator Core 4 Internet

3 | | FCC Model City Workshop | MMB || COPYRIGHT © 2014 ALCATEL-LUCENT. ALL RIGHTS RESERVED. Alcatel-Lucent 3.5 GHz Network Platform for Research and Testbed Network ALU Single Box vEPC (LTE-in-a-Box) Bell Labs Dynamic SAS Prototype X X 3.5 GHz Prototype Small Cell 11ac Wi-Fi in 3.5 GHz TD-LTE in in 3.5 GHz TD-LTE 3.5 GHz PAL 3.5 GHz Wi-Fi GAA US NAVY Naval Radar ALU BL PTASS Protocol PTASS = Protocol for Tiered Access to Shared Spectrum

4 | | FCC Model City Workshop | MMB || COPYRIGHT © 2014 ALCATEL-LUCENT. ALL RIGHTS RESERVED. Demo System: Bell Labs 3.5 GHz SAS Architecture C-SAS Server (Ubuntu Linux) F-SAS Server Emulator (Java App) CBSD Emulator (Java App) Internet CBSD Emulator (Java App) - Integrate with OpenStack for system scalability (Open Source Cloud Operation System) - Manage CBSDs and Incumbents - Handle requests from CBSDs - Allocate shared spectrum dynamically CBSD 3.5 GHz Prototype Signaling PTASS

5 | | FCC Model City Workshop | MMB || COPYRIGHT © 2014 ALCATEL-LUCENT. ALL RIGHTS RESERVED. Notes  Our SAS supports ­ Activation of exclusion zone for a spectrum chunk ­ Vacating of CBSDs operating in an interrupted spectrum chunk ­ Reassignment of channels to CBSDs ­ Tiered access ­ Aggregation of sensing data  Our testbed supports novel band aggregation to achieve high capacity  Support for DTV ( MHz whitespace) and other bands feasible

6 | | FCC Model City Workshop | MMB || COPYRIGHT © 2014 ALCATEL-LUCENT. ALL RIGHTS RESERVED. Conclusions  Alcatel-Lucent Bell Labs has developed an end-to-end platform and testbed for shared spectrum use in future wireless networks ­ Demonstrates sharing and aggregation of spectrum bands  At-scale explorations are critical to proving how well spectrum sharing will work in federal spectrum ­ Such proof essential for incumbents to be reassured of protection and for a viable business case for secondary network ­ Needs joint exploration with incumbent ­ Alcatel-Lucent Bell Labs can be a key partner in such exploration