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

1. Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [CFA Response: Ad-hoc information distribution with P-P network extension] Date Submitted: [17 March, 2005] Source: [Yozo Shoji and Hiroyo Ogawa] Company [National Institute of Information and Communications Technology, I.A.A.] Address [3-4, Hikarino-Oka, Yokosuka, Kanagawa, 234-0051, Japan] Voice:[+81.46.847.5070], FAX: [+81.46.847.5079], E-Mail:[ hogawa@nict.go.jp ] Re: [IEEE P802.15.SG3c Call For Applications, IEEE P802.15-04/240r2, 12 May, 2004] Abstract:[Description of an application for mmW WPANs] Purpose: [Proposal of an application for mmW WPANs.] 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. Yozo Shoji, NICT

2. Ad-hoc information distribution with P-P network extension Proposal of Channel allocation and Frame format concept for mmW WPAN application Yozo Shoji, NICT

3. Requirements for mmW WPAN channel allocation and frame format • Support of very broadband transmission in selective channels • Support of various applications whose required data rate is changed widely • Coexistence of digital communication channels and through repeated channels Yozo Shoji, NICT

4. Concept of channel allocation for mmW WPAN • Multiplesub-carrier channels based on FDMA/TDMA coexistence format • Common standardized access channels based on time-synchronized multi-carrier TDMA • Optional FDM/FDMA extension channels, in which digital channels and through-repeated channels coexist Yozo Shoji, NICT

5. Frame format of common standardized channel • Frame format of Common Standardized access channels is basically based on 802.15 MAC frame • PNC allocates not only contention free time slot but also optional FDM/FDMA extension channel to DEV on demand • All the information about channel allocation is broadcasted in the initiation of contention free period Yozo Shoji, NICT

6. Frame format of optional FDM/FDMA extension channel Not Specified • Frame format of digital modulated channels in the optional extension channels are the same as that of contention free period in 802.15.3 MAC frame, but occupied by only one specific DEV • Frame format of through-repeated channels in the optional extension channels are not specified Yozo Shoji, NICT

7. Broadband ad-hoc meeting in a office-room • Particular case when one PNC exists and occupies a large number of optional FDMA channels for data broadcasting • Common standardized band uses TDMA based channels working on 802.15.3MAC, and is used for joining and leaving the piconet control, allocating optional FDMA channels, and relatively low-rate data communications Common Standardized Band Optional FDMA Band Yozo Shoji, NICT

8. Broadband ad-hoc meeting in a office-room (cont’) Data rate requirement Frequency channel allocation plan*1 *1) 156 Mbps QPSK subcarrier with 0.5 roll off index and additional 50% guard band is assumed Yozo Shoji, NICT

9. Contents distribution to DEVs with P-P link extension in an exhibition hall or other public places • Uncoded real time video data channels included in optional FDMA band • Optional FDMA band is dynamically divided into some group channels corresponding to the piconet Common Standardized Band Optional FDMA Band Yozo Shoji, NICT

10. Contents distribution to DEVs with P-P link extension in an exhibition hall or other public places (cont’) Data rate requirement Frequency channel allocation plan*1 *1) 156 Mbps QPSK subcarrier with 0.5 roll off index and additional 50% guard band is assumed Yozo Shoji, NICT

11. On-demand transmission or/and re-broadcasting of video/data signal for ad-hoc terminals • Re-broadcasting and relay of hundreds channels of broadcast coded video signals occupies most of the optional FDMA band • Coexistence of broadcast video channels, on-demand video channels, and broadband data communications channels in optional FDMA band Common Standardized Band Optional FDMA Band Yozo Shoji, NICT

12. On-demand transmission or/and re-broadcasting of video and data signal for ad-hoc terminals (cont’) Data rate requirement Common Standardized Band Optional FDMA Band Frequency channel allocation plan*1 *1) 156 Mbps QPSK subcarrier with 0.5 roll off index and additional 50% guard band is assumed Yozo Shoji, NICT

13. Conclusions • Concept of dynamic optional FDM/FDMA channel extension for mmW WPAN is proposed for mmW WPAN applications • Subcarrier based multi-channel signal format • Common standardized TDMA channels working on 802.15.3MAC • Optional FDM/FDMA channels are used for broadcast/multicast in proposed applications Yozo Shoji, NICT