<Britton Sanderford>, <Sensus> <July 2009> Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [Sensus’ Proposal to TG4g, Updated] Date Submitted: [15 July, 2009] Source: [Britton Sanderford] Company [Sensus] Address [Covington, Louisiana] Voice:[985-773-1232], E-Mail:[Britton.Sanderford@sensus.com] Re: [Response to CFP issued January 22nd 2009, document 15-09-077-00-004g] Abstract: [Proposal for optional licensed band operation, merged proposal.] Purpose: [Proposal for consideration of inclusion into draft amendment] Notice: This document has been prepared to assist the IEEE P802.15. 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 P802.15. <Britton Sanderford>, <Sensus>

High Level Goals Frequency Band Agnostic Increase available BW <July 2009> High Level Goals Frequency Band Agnostic Increase available BW Expand international compliance options Promotes ‘unification’ Allow Increased Transmit Power in Countries and Bands Permitting Power Trumps Link Margin in Jammer Limited Environments Power Efficiency & Low Endpoint Cost: FSK Modulations Enhance System’s Overall Effective Data Capacity; Set By Mix of Endpoint Data Rates Number of Collectors Number of Parallel Frequency Channels/Bands Supported <Britton Sanderford>, <Sensus>

‘Unifying’ Assumptions To Help Merge Proposals <July 2009> ‘Unifying’ Assumptions To Help Merge Proposals Utility Will Choose Technology/Vendor To Suit IRR, Goals of capital vs. operating cost constraints, etc Terrain & sparse/dense/mix Feature requirements including frequency band of operation Bands Used will Determine (/Limit) Number of Hops (1 to N, where N is likely 25 to 75) Power Output (10 mW to 5 Watts) Data Rate (8 kb/s to 500 kb/s) Vendors Can Bid These & Other Parameters They Feel Best Meets Utility Needs Once Parameters Chosen They Do Not ‘Travel’ These are fixed base assets Greatly reduces endpoint to endpoint “negotiations” <Britton Sanderford>, <Sensus>

<July 2009> Table Based Channel List Allows Open Form Solution And Covers All Present and Likely Future Bands Frequency Band List 314 – 316 MHz 700 MHz 928 – 960 MHz 316 – 433 MHz 780 – TBD MHz 950 – 956.7 MHz 400 - MHz 863 – 870 MHz 1427 – 1432 MHz 426.025 – 469.4875 MHz 896 – 901 MHz 1605 – 1625 MHz 450- 470 MHz 901 – 902 MHz 2400 – 2483 MHz 470 – 510 MHz 902 – 928 MHz <Britton Sanderford>, <Sensus>

Table Based Merger Proposal <July 2009> Table Based Merger Proposal Proposed Interoperability Table Base Band Start Frequency: Channel Step Size: This Includes Guard Band 22 Bits Provides 1 kHz Resolution 4.2 gHz 14 Bits Provides 50 Hz Resolution 50 Hz Resolution Required by Some Regulations Provides Step Size: To 819 kHz Supports 6.25 kHz Step Size Requirements in Some Bands Number of Channels: Power Output: Modulation: Bt & Beta: FEC: Mode: Interoperability Proposal (Requires “Signature” -- 6 Bytes + Hop Table) Parameter Specified by Utility Set by Factory, or by Set-up Tool Parameter Set by Application & by Endpoint Physical Location Allows Vendor Feature Enhancements Beyond Base: Sensitivity, Transmit Power, Battery Life, Anti-Jam, Advanced Modulations (Data Rate), System Level Capacity, etc 1-M (M Limited by Hardware Chip, 75 to 100 Likely) Hop List Set by Table (est 75 bytes, Details Next Slide) 4 bits; 10mW to 5W Limited by Application (ie, PCT …. SCADA) 1 bit; GFSK / 4 GFSK 4 bits; Set by Band Selected 2 bits; Non, Block, Viterbi 0.5/.75; Interleaved Data 1 bit; 2-Way or Transmit-Only (ie, Water, Gas, FCI) <Britton Sanderford>, <Sensus>

Table Addresses Non-Contiguous Channels <July 2009> Table Addresses Non-Contiguous Channels Base Frequency, Any Band: 22 Bits provide 1 kHz resolution Channel Step Size: 14 Bits provide 50 Hz resolution Hop Frequency Hop Table; Skip A Hop = 00 1 1 Byte; Represents Desired Freq Channel (see Next Page *) 2 1 Byte 3 4  75 1 Byte; Return to Hop #1 = FF <Britton Sanderford>, <Sensus>

Sufficient BW to Cover Band Selected <July 2009> Examples of Channel Step Size (819 MHz Max) *TEST: 1 Byte Provides Sufficient BW to Cover Band Selected @ 6.25 kHz = 1.6 MHz @ 12.5 kHz 3.2 MHz @ 25 kHz 6.4 MHz @ 50 kHz 12.8 MHz @ 100 kHz 25.6 MHz @ 200 kHz 51 MHz @ 300 kHz 76.8 MHz <Britton Sanderford>, <Sensus>