1. Dynamic Multi Level RF Power
Month Year
doc.: IEEE yy/xxxxr0
10 Nov 05
Dynamic Multi Level RF Power
Date:
Authors:
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Roger Durand, AutoCell Labs
John Doe, Some Company

2. Month Year
doc.: IEEE yy/xxxxr0
10 Nov 05
Abstract
Dynamic Multi Level RF transmitter power enables optimal power capabilities specifically to increase network capacity thru frequency re-use in adjacent or near adjacent cells.
Radio Sensitivity Threshold enables a capability that can be used to increase network capacity by setting the threshold to an optimal level so the physical sensing mechanism will not false detect noise, fringe interference, fringe transmitters for valid packets inside the serving cell.
Roger Durand, AutoCell Labs
John Doe, Some Company

3. 10 Nov 05
Legacy Power Shaping
Usually static/fixed: Capacity at the expense of Coverage
All packets at the same back off power, +10dBm actual output (+20dBm capable)
No Coverage, no connection
Roger Durand, AutoCell Labs

4. Usually static/fixed: Coverage at the expense of Capacity
10 Nov 05
Usually static/fixed: Coverage at the expense of Capacity
All packets at Max power, +20dBm capable
Coverage, reduced capacity
Roger Durand, AutoCell Labs

5. Overlapping RF Coverage areas
10 Nov 05
Overlapping RF Coverage areas
Ideally an AP would like to set its coverage area only as far as its neighbors AP on the same channel.
This is impractical in real world deployments and creates coverage holes
Coverage initially is based on management frames
Capacity is usually limited by data frames
Ideally an AP would like to provide a win-win scenario where it can provide both coverage and increased data capacity
APs can sense each other and their clients above the noise floor and can determine in real-time a near optimal power control for its data frames.
Roger Durand, AutoCell Labs

6. Station Aware Power Shaping
10 Nov 05
Station Aware Power Shaping
Dynamic power: Pre-association graphic
Management +20dBm, Data, +10 dBm both cells
Range of Management frames
Range of Data frames
Coverage, may connect or roam
Roger Durand, AutoCell Labs

7. Station Aware Power Shaping
10 Nov 05
Station Aware Power Shaping
Dynamic power: Post association graphic
Management +20dBm, Data +20 dBm cell 1, Data +10 dBm cell 2
Cell 1
Cell 2
Coverage, connected
Roger Durand, AutoCell Labs

8. Radio Sensitivity Threshold
10 Nov 05
Radio Sensitivity Threshold
Scenario : Power Management +20dBm, Data +15dBm
Interferer degrades noise floor 5 dB
Interferer
Roger Durand, AutoCell Labs

9. Radio Sensitivity Threshold
10 Nov 05
Radio Sensitivity Threshold
Increase sensitivity threshold by 5 dB, to “de-sensitize the receiver”
Interferer
Decreased receiver coverage zone by 5 dB (physics is dominant)
Roger Durand, AutoCell Labs

10. Radio Sensitivity Threshold
10 Nov 05
Radio Sensitivity Threshold
Increase sensitivity threshold by 5 dB, to “de-sensitize the receiver”
And Increase Data Power by 5 dB
Interferers
Decreased receiver coverage by 5 dB
Roger Durand, AutoCell Labs

11. Radio Sensitivity Threshold
10 Nov 05
Radio Sensitivity Threshold
Different types of interferers cause different levels of degradation and also have different countermeasures
Interferers
Roger Durand, AutoCell Labs

12. 10 Nov 05
Motion
Motion: “The substantive text IEEE 802/11_05_ 1068r1 MultiRFPower addresses objectives: transmit power control, dynamic multilevel power coordination, energy detection threshold, overlapping RF coverage areas, access point coordination, degradations caused by contention or other issues, advertisement and neighbor learning process is worthy of inclusion in the base draft”
Merge=
No=
Abstain=
Roger Durand, AutoCell Labs