1. doc.: IEEE 802.15-09-0573-03-0006 Submission KETI, LG Electronics, Tensorcom, KORPA Slide 1 Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [Narrowband PHY and MAC Revision for WBAN - Summary] Date Submitted: [16 July 2009] Source: [Dong-Sun Kim 1, Yangmoon Yoon 4, Yongho Seok 2, Ismail Lakkis 3, Seyeong Choi 2, Sang Yun Lee 4, Tae-Ho Hwang 1, Byoung-Hoon Kim 2, Moon Young Choi 4, Young Hwan Kim 1, Jae Gi Son 1, Sang-Jin Hyun 1, Ha-Joong Chung 1, Chang-Won Park 1, Seung-Ok Lim 1, Zafer Sahinoalu 5 ] Company: [KETI 1, LG Electronics 2, Tensorcom 3, KORPA 4, MERL 5] Address: [KETI 1 ; #68 Yatap-dong Bundang-gu, Seongnam-si, Gyeonggi-do 463-816, Korea, LG Electronic 2 ; LG R&D Complex 533, Hogye-1dong, Dongan-Gu, Anyang-Shi, Kyungki-Do, 431-749, Korea Tensorcom 3, 10875 Rancho Bernardo Rd, suite 108, San Diego, CA 92127, USA KORPA 4 ; 78 Garak-dong, Songpa-gu, Seoul, 138-803, Korea] Voice: [+82-31-789-7384 1, +82-31-450-1947 2, +1-858-676-0200 3, +82-2-2142-2162 4 ], FAX: [] E-Mail: [dskim@keti.re.kr 1, yhseok@lge.com 2, ilakkis@tensorcom.com 3, yoon001@paran.com 4 ] Re: [] Abstract: Introduce the summary of the Narrowband PHY and MAC Revision for WBAN. The revision is contributed by KETI, LGE Electronics, Tensorcom, KORPA, and MERL. Purpose: This document is intended as a proposal for addressing the requirements of the TG6 standard. 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. July 2009

2. doc.: IEEE 802.15-09-0573-03-0006 Submission KETI, LG Electronics, Tensorcom, KORPA NameE-MailAffiliation Dong Sun Kimdskim@keti.re.krKETI Tae-Ho Hwangtaeo@keti.re.krKETI Young Hwan Kimyhkim93@keti.re.krKETI Jae Gi Sonjgson@keti.re.krKETI Seung Ok Limsolim@keti.re.krKETI Yoon-Jae Wonyjwon@keti.re.krKETI Sang-Jin Hyunbrittlediamond@gmail.comKETI Ha-Joong Chungchunghj@keti.re.krKETI Chang-Won Parkparkcw@keti.re.krKETI Yangmoon Yoonyoon001@paran.comKORPA Sang Yun Leesylee76@korpa.or.krKORPA Moon Young Choimoono0825@naver.comKORPA Won Ho Jangwhj@korpa.or.krKORPA Yongho Seokyhseok@lge.comLG Electronics Seyeong Choiseyeong.choi@gmail.comLG Electronics Byoung-Hoon Kimbyoungk@lge.comLG Electronics Ismail Lakkisilakkis@tensorcom.comTensorcom Zafer Sahinoaluzafer@merl.comMERL Slide 2 KETI : Korea Electronics Technology Institute KORPA : Korea Radio Promotion Agency July 2009 Contributors

3. doc.: IEEE 802.15-09-0573-03-0006 Submission KETI, LG Electronics, Tensorcom, KORPA Contributors (Continued) NameE-MailAffiliation Chao-Chun Wangccwangg@gmail.comSelf Slide 3 July 2009

4. Submission doc.: IEEE 802.15-09-0573-03-0006 KETI, LG Electronics, Tensorcom, KORPA Proposed Data Rate and Modulation Power efficient FSK Modulation Band limited gaussian pulse shape filter –Improve spectrum efficiency at the cost of increased ISI –Cause elevated BER compared with a typical FSK FEC for compensating the elevated BER –Outer RS(15,13) in GF(2 4 ) –Inner CC code, with constraint length 3, rate ½ [5 7] Slide 4 Frequency Band Channel /BW Data rateModulationFECPulse shape Filter 402-405 MHz MICS 10 (300KHz /CH) 150 Kbps / 500 Kbps 1) 2FSK/ 4FSK RS+CC Header (5,3) Payload (15,13) Gaussian Filter (Modulation index = 0.5, BT = 0.5) 1)500 kbps is a minimum transmission data rate for 8bit RGB 256x256 pixel color image with 1 fps and 4:1 image compression ratio JPEG compression ratio is typically 4:1 for CT and MR. 32 channel ECG need minimum 192 kbps and 2 channel EMG needs 256 kbps. July 2009

5. Submission doc.: IEEE 802.15-09-0573-03-0006 KETI, LG Electronics, Tensorcom, KORPA Narrowband Summary Modulation –2-GFSK / 4-GFSK (BT = 0.5, h = 0.5) FEC –Outer RS(15,13) in GF(2 4 ) –Inner CC code, with constraint length 3, rate ½ [5 7] 2-GFSK Modulation as a common ground   /2-DBPSK + Laurent pulse shaping –Common preamble 2 byte before spreading –Frequency bands 400MHz to 2.4 GHz with TBD BW in each band 2016-03-13 5 July 2009

6. Submission doc.: IEEE 802.15-09-0573-03-0006 KETI, LG Electronics, Tensorcom, KORPA Narrowband PHY Packet Structure Preamble & Header : 2-GMSK Shortened RS(5,3) for header, CC is reset after header Spreading sequence: s = [-1 +1 -1 -1 -1 +1 -1 -1 +1 +1 +1 -1 -1 -1 -1 +1] Preamble + SFD: [s s... s] + [-s] (2 byte) Payload –MCS0: 2-GFSK, SF = 1, data rate = BW*(1/2)*(13/15) –MCS1: 4-GFSK, SF = 1, data rate =2*BW*(1/2)*(13/15) –MCS2: Reserved –MCS3: Reserved 2016-03-13 6 Preamble PHY Header Payload Length 10b MCS 2b SFD July 2009

7. Submission doc.: IEEE 802.15-09-0573-03-0006 KETI, LG Electronics, Tensorcom, KORPA Emergency Handling Mechanism Motivation –Support emergency handling mechanism for medical/healthcare application Proposed Emergency Handling Mechanisms –Transmit Power Control Mechanism –Coordinator Switch Mechanism Slide 7 July 2009

8. Submission doc.: IEEE 802.15-09-0573-03-0006 KETI, LG Electronics, Tensorcom, KORPA Transmit Power Control Mechanism As stated in technical requirement document, we already made some consensus on the following transmit power control mechanism –It may be desirable to increase the transmit power for this type of transmission, to get through any kind of interference. [08/0644r9] Proposed transmit power control mechanism –In non-emergency situation, Coordinator sets Emergency Max Transmit Power and Non-emergency Max Transmit Power to the same value –In Emergency situation, Coordinator increases Emergency Max Transmit Power and decreases Non-emergency Max Transmit Power Slide 8 July 2009

9. Submission doc.: IEEE 802.15-09-0573-03-0006 KETI, LG Electronics, Tensorcom, KORPA Coordinator Switch Mechanism In emergency situation, coordinator failure is very critical For handling coordinator failure, backup coordinator is necessary Slide 9 July 2009

10. Submission doc.: IEEE 802.15-09-0573-03-0006 KETI, LG Electronics, Tensorcom, KORPA Conclusion Transceiver with error control enabled scalable frame block decreases retransmission packet size and increases duty efficiency Use 2FSK combined with block FEC at low data rate to let simple receiver structure and implementation Two emergency handling mechanism –Transmit Power Control Mechanism –Coordinator Switch Mechanism Emergency handling mechanism is independent on other proposals and also can be used with other emergency handling mechanisms together This presentation introduces key scheme to be applicable to a standard of WBAN Slide 10 July 2009