September 2011 Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [Proposal in Response to Task Group 802.15.4j Call for Proposals] Date Submitted: [12 September 2011] Source: [Dave Evans1, Liang Li2, Anuj Batra3, Ariton Xhafa3, Okundu Omeni4, Khurram Waheed5] Companies [Philips1, Vinno Technologies Inc.2, TI3, Toumaz4, Freescale 5] Address [64-68 London Road, Redhill, UK] Voice:[+441737788216], FAX: [Add FAX number], E-Mail:[david.evans@philips.com] Re: TG4j Call for Proposals document number 15-11-0095 [If this is a response to a Call for Contributions, cite the name and date of the Call for Contributions to which this document responds, as well as the relevant item number in the Call for Contributions.] [Note: Contributions that are not responsive to this section of the template, and contributions which do not address the topic under which they are submitted, may be refused or consigned to the “General Contributions” area.] Abstract: Proposes that FCC MBANS rules can be met with minimal additional amendments for the 15.4 PHY and MAC layers. Purpose: For consideration by TG4j in response to the Call for Proposals (15-11-0095) as a proposal that meets all of the Technical Requirements. 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. Dave Evans, Philips

Proposal in Response to Task Group 802.15.4j Call for Proposals September 2011 Proposal in Response to Task Group 802.15.4j Call for Proposals Philips, Vinno Technologies Inc., Texas Instruments, Toumaz, Freescale Dave Evans, Philips

doc.: IEEE 802.15-<doc#> <month year> doc.: IEEE 802.15-<doc#> September 2011 Content Objective of this Proposal TG4j Technical Requirements MAC Layer Physical Layer Conclusion Dave Evans, Philips <author>, <company>

Objective of this Proposal <month year> doc.: IEEE 802.15-<doc#> September 2011 Objective of this Proposal The objective of this proposal is to create an 802.15.4j Amendment that requires minimal or no changes to the 802.15.4 MAC and Physical layer specifications Only those 802.15.4 parameters to enable operation in the MBANS frequency band and the associated FCC MBANS technical requirements need to be specified by 802.15.4j Dave Evans, Philips <author>, <company>

TG4j Technical Requirements 15-11-0064 <month year> doc.: IEEE 802.15-<doc#> September 2011 TG4j Technical Requirements 15-11-0064 Compliance with: FCC MBANS Draft Rules Part 95 Subpart M – Medical Body Areas Network Service (device control) Amendments to technical requirements covering transmit frequencies, emissions, transmit powers etc TG4j PAR and 5 Criteria Physical Layer Compliant to the existing 802.15.4 DSSS PHY employing O-QPSK, operating in the 2450 MHz band MAC Layer Only additional MAC requirements to support the Physical Layer: To be defined Dave Evans, Philips <author>, <company>

MBANS Electronic Key - Functionality <month year> doc.: IEEE 802.15-<doc#> September 2011 MBANS Electronic Key - Functionality Unique key, contain frequency information, either with or without specific time limit, automatic or semi automatic key deployment MBANS Coordinator Independent frequency coordination organisation. Maintains an electronic database regarding frequency assignments within the 2360-2390 MHz band. Coordinator has knowledge of the location of healthcare facilities and frequency usage inputs from AMT sites. Note: 2390-2400 MHz is not subject to coordination. Electronic beacon, contains unique secure verification and frequency information. Defines the part of 2360-2390 MHz band that may be used, fully automatic MBANS Control Point Single entity in each registered healthcare facility or location MBANS Master Devices Master is responsible for channel selection within the allowed frequency band. Node devices should cease transmissions within the 2360-2390MHz band when losing connection with master Note: This is not part of the 15.4j proposal, it is provided for information Dave Evans, Philips <author>, <company>

doc.: IEEE 802.15-<doc#> <month year> doc.: IEEE 802.15-<doc#> September 2011 MAC Layer MBANS MAC/PHY should provide necessary features to support MBANS device control as required by FCC rules 15.4 already has the necessary MAC data and management service elements for MBANS device control Dave Evans, Philips <author>, <company>

Physical Layer Channelization Plan – Requirements <month year> doc.: IEEE 802.15-<doc#> September 2011 Physical Layer Channelization Plan – Requirements MBANS band is effectively two sub-bands 2360–2390 MHz, in-hospital deployment subject to coordination 2390–2400 MHz, in-hospital, out-of-hospital and home deployment In some instances usage of the band may be confined to the upper 10 MHz only Need to defer to the primary users AMT, 2360–2390 MHz Amateur, 2390–2400 MHz Their usage is indeterminate For example, AMT usage may change from time to time Healthcare facilities must obtain information on coordinated 2360-2390 MHz spectrum MBANS spectrum via the E-key mechanism Dave Evans, Philips <author>, <company>

Physical Layer Channelization Plan – Requirements <month year> doc.: IEEE 802.15-<doc#> September 2011 Physical Layer Channelization Plan – Requirements Existing 802.15.4 chips constrain us to use channels centered on 1MHz steps i.e. 2363.0 MHz, not 2362.5 MHz Coexistence with 802.15.6 15.6 uses channels centered on 1 MHz steps (same as above) Allows two 15.6 channels to exist between 15.4j channels Dave Evans, Philips <author>, <company>

Physical Layer Channelization Plan – Requirements <month year> doc.: IEEE 802.15-<doc#> September 2011 Physical Layer Channelization Plan – Requirements OOB emission limits A channelization scheme using whole 1 MHz steps gives 0.5 MHz guard bands within the MBANS band FCC MBANS rules already define 0.5 MHz guard bands outside of the MBANS band Combination of these bands allows the -41.2 dBm OOB emission limit to be achieved at 1 mW transmit power Using 20 mW transmit power near the upper sub-band edge (2400 MHz) requires a reduced duty cycle Conclusion Cannot fit eight 5 MHz channels into the band due to guard bands A flexible channelization plan is needed to meet all of these requirements Dave Evans, Philips <author>, <company>

Physical Layer Channelization Plan <month year> doc.: IEEE 802.15-<doc#> September 2011 Physical Layer Channelization Plan AMT spectrum Guard bands 15.4j channels Amateur radio spectrum 2360.5 2360 MHz 2400 2399.5 MHz 2390 MHz 2400 MHz 0 (2363) 1 (2368) 2 (2373) 3 (2378) 4 (2383) 5 (2388) 6 (2393) 14 (2395) 7 (2367) 8(2372) 9 (2377) 10 (2382) 11 (2387) 12 (2392) 13 (2397) For in-hospital deployment 14 channels defined to promote coexistence with AMT Non-overlapping channels will be used in 2360-2390 MHz band For out-of-hospital deployment Overlapping channels in 2390–2400 MHz band offers flexibility to avoid interference Low deployment density and low duty cycle will assist MBANS coexistence Dave Evans, Philips <author>, <company>

Physical Layer Channelization Plan <month year> doc.: IEEE 802.15-<doc#> September 2011 Physical Layer Channelization Plan Points to note: An implementer must obtain information on set of channels to use via the E-key and beacon mechanisms Consequently hub devices will mostly likely use a set of channels that are the best fit around the primary users Only non-overlapping channels will be used in 2360-2390 MHz band The chosen set of channels may apply to the whole of a medical facility and all hub devices will use these channels at any one time 15.4j has a total of 15 channels whereas 15.4 has 16 Dave Evans, Philips <author>, <company>

Physical Layer Channelization Plan <month year> doc.: IEEE 802.15-<doc#> September 2011 Physical Layer Channelization Plan New channel page 9 for the MBANS band Channel numbering: Fc = 2363 + 5 k in MHz, for k = 0, 1, …, 6 Fc = 2367 + 5 (k – 7) in MHz, for k = 7, 8, …,13 Fc = 2395 in MHz, for k = 14 Dave Evans, Philips <author>, <company>

doc.: IEEE 802.15-<doc#> <month year> doc.: IEEE 802.15-<doc#> September 2011 Physical Layer No additional MAC requirements are necessary to support the Physical Layer other than Phy Information Base (PIB) attribute phyPagesSupported RF exposure compliance Need to address this with respect to the SAR limits defined in 47 CFR § 2.1093 for portable devices This is particularly applicable to the 20 mW transmit power limit in the 2390–2400 MHz band Low duty cycle of usage in this sub-band will assist compliance Dave Evans, Philips <author>, <company>

doc.: IEEE 802.15-<doc#> <month year> doc.: IEEE 802.15-<doc#> September 2011 Physical Layer 15.4 is already compliant with the allowed MBANS transmitter emission types and bandwidth Spurious Emissions FCC §95.635 Unwanted Radiation limit is < 500 μV/m at 3m (equivalent to -41.2 dBm) at 0.5 MHz outside MBANS band Positioning the 1st channel at 2363 MHz and the last at 2397 MHz allows 15.4j to use 1 mW transmit power whilst meeting this out of band spurious emission limit Use of 20 mW requires a reduced duty cycle to meet the limit Adjacent and alternate channel rejection requirements Same as the existing 15.4 requirements Dave Evans, Philips <author>, <company>

doc.: IEEE 802.15-<doc#> <month year> doc.: IEEE 802.15-<doc#> September 2011 Conclusion A flexible channel plan is proposed to make the best use the MBANS band given the need to assist primary user coexistence and to meet the OOB emission limits This proposal meets the FCC MBANS Part 95 Rules and the amendments to the technical regulations The TG4j technical requirements can be met with minimal modifications to the existing 802.15.4 MAC and PHY layers Dave Evans, Philips <author>, <company>