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Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)

Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [ NICT comment to CID 79, 162 and resolution to CID 177] Date Submitted: [] Source: [ Marco Hernandez , Igor Dotlic, Huan-Bang Li] Company: [ NICT]

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Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)

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  1. Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [ NICT comment to CID 79, 162 and resolution to CID 177] Date Submitted: [] Source: [Marco Hernandez , Igor Dotlic, Huan-Bang Li] Company: [NICT] Address: [3-4 Hikarino-oka, Yokosuka, 239-0847, Japan] Voice:[+81 46-847-5439] Fax:[+81 46-847-5431] E-Mail:[] Re: [In response to the comment-resolution process of 1st sponsor ballot of 802.15.6] Abstract: [] Purpose: [Material for discussion in technical comments to the UWB PHY] 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. Marco H., I. Dotlic, H.-B. Li (NICT)

  2. Comment to CID 79, 162 • Wireless communication is the transmission of information from a transmitter to a receiver via an electromagnetic wave. Such electromagnetic wave travels over a medium. • Conventionally, such medium is the air and the electromagnetic wave is in the transversal mode (TEM), so-called radio waves and at least two antennas are required to couple the electromagnetic wave to the medium and RF front-ends for either transmission or reception. Marco H., I. Dotlic, H.-B. Li (NICT)

  3. Comment to CID 79, 162 • This concept is not unique. For instance, in space communications, electromagnetic waves travel over the vacuum as well as over the air. • in Visual Light Communications, antennas are not required but yet it is the transmission of information via an electromagnetic wave (light) over a medium (air). • In implant communications, like a pacemaker to controller, the electromagnetic wave travels in part through the human body. Marco H., I. Dotlic, H.-B. Li (NICT)

  4. Comment to CID 79, 162 • HBC sticks to the definition of transmission of information via an electromagnetic wave over a medium (skin and maybe tissues), although the transmission mode is not TEM and it requires electrodes to couple such electromagnetic wave to this medium. • The contact of electrodes to the skin has caused controversy and concerned in TG6 especially in the implant community for a long time. • However, NICT has a similar view as stated by the commenter of CID 79, 162 on HBC. We share the same concern of potential harmful interference to implant and sensors of narrowband and UWB devices. Marco H., I. Dotlic, H.-B. Li (NICT)

  5. Comment to CID 79, 162 • In the last meeting in Okinawa, some changes to HBC were introduced in order to improve the isolation of HBC. • We propose to check the new results and to hear the opinion of the implant community about it, before taking a decision on HBC. • We would like to have a face-to-face discussion with the participation of original commenters of CID 79, 162 and HBC proposer. So that the proposer can have a chance to give explanations based on data and numerical results. Marco H., I. Dotlic, H.-B. Li (NICT)

  6. Resolution to CID 177 • A transmission filter or pulse shaping is required to contain a digital baseband signal to a finite bandwidth. • Otherwise, harmful harmonics (sidebands) can affect potentially implant or/and sensors (transducers, electrodes) of narrowband and UWB devices. • Resolution:A pulse shaping filter is not implementation dependant and must be specified for HBC. Marco H., I. Dotlic, H.-B. Li (NICT)

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