1. doc.: IEEE 802.15-<doc#>
<month year>
doc.: IEEE <doc#>
<May 2018>
Project: IEEE P Working Group for Wireless Personal Area Networks (WPANs)
Submission Title: [FSK extension to lower data rates]
Date Submitted: [9 MAY 2018]
Source: [Chris Calvert & Ruben Salazar] Company [Landis + Gyr]
Address [30000 Mill Creek Ave, Alpharetta GA 30022]
Voice:[ ], FAX: [ ],
Re: []
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Abstract: [Proposed extending SUN FSK PHY specification to lower data rates in certain bands.]
Purpose: [Discussion.]
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.
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Chris Calvert & Ruben Salazar (Landis+Gyr)
<author>, <company>

2. doc.: IEEE 802.15-<15-09-0758-00-004e>
<month year>
November 18
doc.: IEEE < e>
<May 2018>
Overview – x PAR
“This amendment also defines additional channel plans to support emerging applications. Typical range of the radio is up to 5 kilometers with line of sight using omnidirectional antennas.”
Slide 2
Ruben Salazar, Chris Calvert (Landis+Gyr)
Page 2

3. doc.: IEEE 802.15-<15-09-0758-00-004e>
November 18
<month year>
doc.: IEEE < e>
<May 2018>
Overview of proposal
Proposed addition
Define lower data rates in FSK SUN PHY
Use lower data rates already defined but add them as options for ISM bands that do not include them today.
Rationale
Many SUN deployments today use transceivers that support FSK.
Lower data rates are a very important and needed feature and component for the SUN PHY.
Provides another option to increase range and/or penetration for SUN PHYs
It is convenient to change data rates without changing modulation schemes
Slide 3
Ruben Salazar, Chris Calvert (Landis+Gyr)
Page 3

4. Current Lower Data Rates in FSK SUN
<month year>
November 18
doc.: IEEE < e>
<Amy 2018>
Current Lower Data Rates in FSK SUN
The data rates above are defined in Table This proposal will use the same data rates and modulation – but propose wider channels and possibly different modulation index.
Slide 4
Ruben Salazar, Chris Calvert (Landis+Gyr)
Page 4

5. Current Data Rates in FSK SUN
<month year>
November 18
doc.: IEEE < e>
<Amy 2018>
Current Data Rates in FSK SUN
As part of v – multiple channel plans were added for common ISM bands around the globe including the one shown above. Others include , , & , , etc…
Proposing to add optional modes 6 – 8 for these bands that define these lower data rate bands.
Slide 5
Ruben Salazar, Chris Calvert (Landis+Gyr)
Page 5

6. doc.: IEEE 802.15-<15-09-0758-00-004e>
<month year>
November 18
doc.: IEEE < e>
<May 2018>
Extension proposal
For SUN FSK PHY – add three optional PHYs as defined in table below:
Determine which ISM channel plans in table 20-7 to apply these to – but certainly include MHz.
Mode 6
Mode 7
Mode 8
Data rate (kb/s) 10 20 40
Modulation
2FSK
Mod Index
0.5 or 1.0 (TBD)
Channel spacing (kHz)
100
Slide 6
Ruben Salazar, Chris Calvert (Landis+Gyr)
Page 6

7. doc.: IEEE 802.15-<15-09-0758-00-004e>
<month year>
November 18
doc.: IEEE < e>
<May 2018>
Comments
The added data rates would be natural extensions of the current specification and follows a combinations of PHYs already defined.
Some current silicon has already the elements necessary to cover these. This needs further study by interested parties and the silicon vendors. Suggest this is done prior to July for discussion in San Diego.
Sensitivity for the added rates would be significantly better: from current experience one can expect ~8dB improvement moving from 50kb/s to 10kb/s – thus allowing longer range options.
It is easier to implement the changes of Operating modes (speed) rather than Modulation schemes.
Slide 7
Ruben Salazar, Chris Calvert (Landis+Gyr)
Page 7