1. <March 2015>
Project: IEEE P Working Group for Wireless Personal Area Networks (WPANs)
Submission Title: [Consistent, Standardized Methods for Wireless Device Operations Applicable to Multiple PHYs]
Date Submitted: [11 March 2015]
Source: [Pat Kinney] Company [Kinney Consulting]
Address [251 Clair View Ct, Lake Zurich, IL]
Voice:[ ], FAX: [],
Re: [In response to the call for presentations from WNG Chair]
Abstract: [Typical device behaviors that should be commonly addressed]
Purpose: [Case for expanding scope of TG4r PAR]
Notice: This document has been prepared to assist the IEEE P It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein.
Release: The contributor acknowledges and accepts that this contribution becomes the property of IEEE and may be made publicly available by P
<Pat Kinney >, <Kinney Consulting>

2. Case for expanding the scope of TG4r’s PAR
<March 2015>
Consistent, Standardized Methods for Wireless Device Operations Applicable to Multiple PHYs
Case for expanding the scope of TG4r’s PAR
<Pat Kinney >, <Kinney Consulting>

3. Historical Perspective
<March 2015>
Historical Perspective
IEEE Std has been amended many times with minimal PHY changes necessary to address new markets or market changes
Typically, each PHY amendment added only those MAC changes necessary to implement that PHY, in other words it seldom anticipated making those MAC changes applicable to other PHYs
<Pat Kinney >, <Kinney Consulting>

4. Historical Perspective (cont’d)
<March 2015>
Historical Perspective (cont’d)
The current IEEE Std is now confusing to the reader as to which MAC operations are compatible with which PHYs
Need exists for consistent, standardized methods to apply specific MAC operations to all or almost all PHYs
This would allow the high layer to specify the MAC automatic operation, e.g. a default?
<Pat Kinney >, <Kinney Consulting>

5. doc.: IEEE 802.15-<doc#>
<month year>
doc.: IEEE <doc#>
<March 2015>
TG4r PAR Scope
This amendment integrates wireless ranging techniques and technologies, including those existing within IEEE and new to IEEE , into a consistent, standardized method addressing the needs of a wide range of applications and PHYs and enabling the interoperability of devices by different vendors using this method. Additionally, the amendment defines necessary MAC and PHY extensions which enable common radio based distance measurements.
<Pat Kinney >, <Kinney Consulting>
<author>, <company>

6. Other Modes/Operations with Similar Needs
<March 2015>
Other Modes/Operations with Similar Needs
Dynamic Data Rate Selection
Dynamic Transmit Power Selection
Asymmetric Link Operation
Channel Hopping Operation
Select TSCH operations
<Pat Kinney >, <Kinney Consulting>

7. Dynamic Data Rate (DDR) Selection
<March 2015>
Dynamic Data Rate (DDR) Selection
Many PHYs have multiple data rates
Data rates are currently specified by a higher layer but often data rates could be better set by the MAC on a link-by-link basis
To allow MAC to set the data rate, would need to:
Define an automatic data rate determination algorithm
Define common methods for MAC to select specific PHY data rates, FEC, PHY preambles, etc.
Since the MAC already knows whether frames have been dropped DDR selection would allow the MAC to understand the timing parameters
<Pat Kinney >, <Kinney Consulting>

8. Dynamic Transmit Power Levels (DTPL)
<March 2015>
Many PHYs have defined multiple transmit power levels
Transmit power levels are currently specified by a higher layer but often these levels could be better set by the MAC on a link-by-link basis
To allow MAC to set the transmit power level it may need to:
Determine the CSMA impact (note: GTS or TSCH operation would have no affect)
Define a default automatic power level determination algorithm with option to download another
Define common methods for MAC to select specific PHY power levels based upon PHY preambles, PHY FEC, signal strength, failed packets, etc.
Tell the device on the other side of the link what it’s contemplating
<Pat Kinney >, <Kinney Consulting>

9. Asymmetric Link Operation
<March 2015>
Asymmetric Link Operation
Asymmetric Link Operation (ALO) is preferred for some networks with many end devices, as it allows the end devices to operate at low energy levels, etc. Example applications include shelf tags, etc.
Optimized network operation for high performance device (HPD) along with low performance devices (LPDs)
HPDs acting as coordinators enable lower cost LPDs to reduce energy consumption
MAC ALO would free the higher layer from having to set up a network with HPDs and LPDs.
<Pat Kinney >, <Kinney Consulting>

10. Channel Hopping Operation
<March 2015>
Channel Hopping is preferred for some networks operating in interference prone environments.
Example applications include smart grid and industrial
Channel hopping networks require a:
known hop sequence
a channel white list and a channel black list
a method to alter hop sequence on-the-fly
a method to synchronize,
a known clock (network wide? local area only?)
MAC channel hopping would not require the higher layers to understand radio operation
<Pat Kinney >, <Kinney Consulting>

11. Backward Compatibility
<March 2015>
Backward Compatibility
Add a new primitive parameter to the primitives e.g. Auto-DDR, Auto-DTPL, Auto-CH, Auto-ALO
Older devices would continue to use the current methods, i.e. over-ride the automatic mode
Setting Auto-xxx to TRUE would tell the MAC to ignore the legacy values
<Pat Kinney >, <Kinney Consulting>

12. <March 2015>
Going Forward
Repurpose TG-4r by amending its PAR and CSD (PAR is already MAC/PHY)
Set up teams to address each area: ranging, DDR, DTPL, ALO, CHO, etc.
Work with existing TGs to coordinate efforts
<Pat Kinney >, <Kinney Consulting>

13. doc.: IEEE 802.15-<doc#>
<month year>
doc.: IEEE <doc#>
<March 2015>
TG4r PAR Modified Scope
This amendment integrates wireless ranging techniques and technologies for ranging, dynamic data rates, dynamic transmit power selection, asymmetric link operation, and time scheduled channel hopping (TSCH), including those existing within IEEE and new to IEEE , into a consistent, standardized methods addressing the needs of a wide range of applications and PHYs and enabling the interoperability of devices by different vendors using thisese methods. Additionally, the amendment defines necessary MAC and PHY extensions which enable common radio based operations such as distance measurements.
<Pat Kinney >, <Kinney Consulting>
<author>, <company>