1. May 2007
doc.: IEEE /0010r0
May 2009
Presentation Summarizing Contribution on TV Whitespace Coexistence Matrix and Use Cases
Date:
Authors:
Slide 1
Richard Paine, Self; Mark Cummings, EnVia; Alex Reznik, Interdigital
Steve Shellhammer, Qualcomm

2. Abstract Propose modification to the co-existence matrix
May 2007
doc.: IEEE /0010r0
May 2009
Abstract
Propose modification to the co-existence matrix
Suggest an additional element of “network operation/ownership” to be considered as part of a use case
Provide detailed analysis of 2 use cases
Campus (i.e. college campus, suburban mall, etc.)
Large apartment building
Slide 2
Richard Paine, Self; Mark Cummings, EnVia; Alex Reznik, Interdigital
Steve Shellhammer, Qualcomm

3. Whitespace Coexistence Matrix
May 2007
doc.: IEEE /0010r0
May 2009
Whitespace Coexistence Matrix
802.11
802.15
802.16
802.22
GSM
WCDMA
CDMA2000
UWB
Blue Tooth
Other
Low Power
High Power
Macro Cells
Femto Cells
Macro Cell
Femto Cell
CDMA 2000
*Protected devices, as defined by the FCC are not listed. They are protected by procedures specified by the FCC.
**This Table is meant to be Representative, not complete
***It is Likely that a similar analysis be done for OFCOM, Industry Canada, Netherlands Antilles, etc. rules
Full Coexistence Without Cooperation
Partial Coexistence Without Cooperation
Coexistence Requires Cooperation
Slide 3
Richard Paine, Self; Mark Cummings, EnVia; Alex Reznik, Interdigital
Steve Shellhammer, Qualcomm

4. Observations from the Matrix
May 2007
doc.: IEEE /0010r0
May 2009
Observations from the Matrix
It would appear that in general different technologies cannot co-exist except through sufficient geographical separation
UWB is an exception
However, this depends on an underlying assumption of passive co-existence
In some cases, the notion of an active coexistence enabler is not unreasonable
For example if a single operator of a heterogeneous network is provided such a device
Our use-case study needs to address such possibilities
In particular, we should differentiate between co-existence between networks operated by different entities and co-existence of network operated by the same entity
We examine two scenarios which make illustrate this point
Slide 4
Richard Paine, Self; Mark Cummings, EnVia; Alex Reznik, Interdigital
Steve Shellhammer, Qualcomm

5. The Campus Use Case May 2009 Key aspects of this Use Case
doc.: IEEE /0010r0
May 2009
The Campus Use Case
Key aspects of this Use Case
Presence of macro-coverage
Cellular providers
Fixed WWAN (Wimax)
Potentially high density of 100mW devices
WiFi networks (per store, department, etc.)
WiFi hot-spots
Femto-cells
40 mW devices
Microphones
Presence of a single coordinating entity
Campus owner
Mall owner
This entity may
Own and sublease all or part of the network
Impose constraints and requirements on network operations by individual operators
Slide 5
Richard Paine, Self; Mark Cummings, EnVia; Alex Reznik, Interdigital
Steve Shellhammer, Qualcomm

6. The Apartment Building Use Case
May 2007
doc.: IEEE /0010r0
May 2009
The Apartment Building Use Case
Key aspects of this Use Case
Presence of macro-coverage
Cellular providers
Fixed WWAN (Wimax)
Potentially high density of 100mW devices
WiFi networks (per store, department, etc.)
WiFi hot-spots
Femto-cells
40 mW devices
Microphones
Each apartment potentially an independent network
May use different broadband/cellular/femto-cell providers
No ability to coordinate WiFi usage (except maybe direct human goodwill)
Slide 6
Richard Paine, Self; Mark Cummings, EnVia; Alex Reznik, Interdigital
Steve Shellhammer, Qualcomm

7. Cellular Provider Use of Whitespace
May 2007
doc.: IEEE /0010r0
May 2009
Cellular Provider Use of Whitespace
Voice (4W or low power Whitespace frequencies)
Femtocell (low power Whitespace frequencies
Internet (4W or low power Whitespace frequencies)
VOIP (4W or low power Whitespace frequencies)
Two Different Cellular Providers
Different WS Channels
Richard Paine, Self; Mark Cummings, EnVia; Alex Reznik, Interdigital
Steve Shellhammer, Qualcomm

8. WiFi Provider Use of Whitespace
May 2007
doc.: IEEE /0010r0
May 2009
WiFi Provider Use of Whitespace
Home (low power Whitespace frequencies)
Enterprise (low power Whitespace frequencies)
WiFi Hotspot (low power Whitespace frequencies)
Internet Access (low power Whitespace frequencies)
VOIP (low power Whitespace frequencies)
Richard Paine, Self; Mark Cummings, EnVia; Alex Reznik, Interdigital
Steve Shellhammer, Qualcomm

9. Fixed WWAN (WiMAX, 802.22) Provider Use of Whitespace
May 2007
doc.: IEEE /0010r0
May 2009
Fixed WWAN (WiMAX, ) Provider Use of Whitespace
Voice (low power Whitespace frequencies)
VOIP (low power Whitespace frequencies)
Internet (low power Whitespace frequencies)
Suburban (4W Database)
Rural (4W Database)
Richard Paine, Self; Mark Cummings, EnVia; Alex Reznik, Interdigital
Steve Shellhammer, Qualcomm

10. Local TV Broadcast WS TV Broadcast (4W Database)
May 2007
doc.: IEEE /0010r0
May 2009
Local TV Broadcast
WS TV Broadcast (4W Database)
Non-802 Protocols (4W Database or low power Whitespace frequencies)
TV Broadcaster
Richard Paine, Self; Mark Cummings, EnVia; Alex Reznik, Interdigital
Steve Shellhammer, Qualcomm

11. Microphone Provider Use of Whitespace
May 2007
doc.: IEEE /0010r0
May 2009
Microphone Provider Use of Whitespace
Voice (low power Whitespace frequencies)
Non-802 Protocols (low power Whitespace frequencies)
Richard Paine, Self; Mark Cummings, EnVia; Alex Reznik, Interdigital
Steve Shellhammer, Qualcomm

12. Conclusions Made comments to the matrix
May 2007
doc.: IEEE /0010r0
May 2009
Conclusions
Made comments to the matrix
Presented 2 use cases (see our text for more detail)
Propose that the notion of a “operating entity” is an important factor in considering a use case.
Richard Paine, Self; Mark Cummings, EnVia; Alex Reznik, Interdigital
Steve Shellhammer, Qualcomm