Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [Prospective directions for TG6 by considering different dimension parameters] Date Submitted: [July 17, 2008] Source: [Huan-Bang Li, Bin Zhen, Shinsuke Hara, Tetsushi Ikegami, Jun-ichi Takada, and Ryuji Kohno] Company [National Institute of Information and Communications Technology (NICT)] Contact: Huan-Bang Li. Voice:[+81 46 847 5104, E-Mail: lee@nict.go.jp] Abstract: [A brief view on the TG15.6 related regulations] Purpose: [To help forwarding the discussion in TG15.6 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.

Prospective directions for TG6 by considering different dimension parameters Huan-Bang Li, Bin Zhen, Shinsuke Hara, Tetsushi Ikegami, Jun-ichi Takada, Ryuji Kohno NICT, Japan

Motivations Tackle some basic questions for TG6 How many dimensions (parameters) do we need to consider? Solutions need to stick to the PAR Raise possible directions for solution Allow multiple solutions. Allow partial solutions.

Dimensions To Be Considered Operating frequency bands Medical and non-medical applications Low and high data rates Wearable and implant BAN Narrow band and wide band technologies

As They Are in the PAR Frequency bands (0575-09-0BAN) Applications ISM bands as well as frequency bands approved by national medical and/or regulatory authorities Applications a variety of applications including medical and personal entertainment Data rates data rates up to 10 Mbps is required Wearable and implant for use in close proximity to, or inside, a human body Narrow band or wide band technologies There is no restriction

Candidate Frequency Bands (0034-06-0006)

Frequency band vs. Data rates Low rate 100 kbps 1 Mbps High rate 5 Mbps 10Mbps MICS (world wide) BW≤300 kHz WMTS (regional) 8.5kHz<BW≤6MHz ISM (world wide) selectable UWB (world wide) BW > 500 MHz

Medical vs. Non-medical MICS (world wide) YES NO WMTS (regional) ISM (world wide) UWB (world wide) 2.4 GHz is crowded with 802.11, 802.15.1, 802.15.4, 802.15.4a Be cautious! Coexistence may become an issue

Application vs. Data rate Low rate High rate Medical MICS YES Maybe WMTS No ISM UWB Non-medical Again, cautious on 2.4 GHz

Some Observations Both world wide frequency bands and regional frequency bands (~ 802.15.4) Technologies could be either wideband (e.g. FM-UWB) or narrow band (e.g. FSK). (Different technologies have different fits) It would be difficult to use a single radio to meet all requirements (Multiple …)

Possible Solutions Solutions based on different radios on different bands. (multiple solutions) No need for a single solution to meet all because of different requirements. (partial solutions) Common MAC and upper layers are important for control and inter-connection. (Single MAC)

Is It Reasonable? Choices for markets and users trade off among different parameters Many precedent standards 802.11, 802.15.4, 802.15.4a As “hinted” in PAR in close proximity to, or inside, a human body One thing more to be kept in mind low power consumption is on the top requirements in TG6

For Success Get all candidate solutions on table for sounder understanding Focus more on commonality for merge by sticking to the PAR Compromise and harmonization

Thank you for your attention !