1. doc.: IEEE 802.15-09-0692-00-0007 Submission Samsung Electronics Slide 1 Project: IEEE P802.15 Working Group for Wireless Personal Area Networks Submission Title: [Common understanding of TG7 VLC requirements] Date Submitted: [24 th September, 2009] Source: [Taehan Bae, Jaeseung Son, Sridhar Rajagopal, Ying Li, Atsuya Yokoi[1], Rick Roberts, Praveen Gopalakrishnan, Bahar Sadeghi, Mathys Walma[2], Kang Tae-Gyu, Sang-Kyu Lim, Dae Ho Kim, Ill Soon Jang[3]) Company [Samsung Electronics [1], Intel Corporation[2], ETRI[3]] Address: [] Voice:[] E-Mail:[] Re: [] Abstract: Purpose: Common understanding of TG7 VLC 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. September 2009

2. doc.: IEEE 802.15-09-0692-00-0007 Submission Common understanding of TG7 VLC requirements Samsung Electronics (Taehan Bae, Jaeseung Son, Sridhar Rajagopal, Ying Li, Atsuya Yokoi) Intel Rick Roberts, Praveen Gopalakrishnan, Bahar Sadeghi, Mathys Walma) ETRI (Kang Tae-Gyu, Sang-Kyu Lim, Dae Ho Kim, Ill Soon Jang) September 2009

3. doc.: IEEE 802.15-09-0692-00-0007 Submission Common Understanding (1 of 2) two PHY types a low rate PHY to service long range applications ( 10 m ) a high rate PHY to service short range applications (> 1 Mbps, < 10 m) the two PHY types should coexist while not requiring interoperability. a common VLC frame structure PHY and MAC headers that minimize the overhead for low rate PHY applications meeting the more demanding needs of the high rate PHY applications. single MAC protocol design that can service both the High Rate and Low Rate PHY designs September 2009

4. doc.: IEEE 802.15-09-0692-00-0007 Submission Common Understanding (2 of 2) VLC application modes : P2P, VLAN (without backhaul, including infrastructure illumination), IB/VB broadcasting and visibility support. frame formats (Beacon, Acknowledgement, Management, Data, Visibility) and related MAC commands. frame flicker compensation via the use of compensating visibility idle patterns. Infrastructure continuous illumination and point-and-shoot support using visibility To accommodate light dimming, the ideal solution when possible, is to intercept the dimming command at the MAC frame format level and adjust the frames and visibility idle patterns accordingly