1. IEEE 802.15-13-0006-00-004N SubmissionLiang Li VinnoSlide 1 Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title:Adaptive timeslot allocation scheme for WBAN Date Submitted:Sept 10, 2012 Source: Wei-Xia Zou, BUPT; Liang Li, Vinno; Jin Shuai, BUPT Suite 202, Building D, No.2 Xinxi Lu, Beijing, China, Voice:1-914-333-9687, FAX: 1-914-332-0615, E-Mail: liangli@vinnotech.com Abstract: Opening report for TG4n(MBAN) Task Group Purpose: Outline accomplishments from the March 2012 meeting and planned tasks for this meeting. 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.

2. IEEE 802.15-13-0006-00-004N Submission Informative Abstract General View Suggest to add Data Priority Classification Priority timeslot Concept in IEEE802.15.4E Data Priority and TimeSlot Conclusion Liang Li Vinno Slide 2

3. IEEE 802.15-13-0006-00-004N Submission General View How to support diverse QoS requirements of various applications is one feature of WBAN MAC operation. In this proposal, we classify the traffics in WBAN scenarios into several priorities. And then, based on the data priority (Frame Priority) classification, the adaptive timeslot allocation scheme is proposed. Of course, there are the possible Priority Channel (PCA) for priority patients or data. Liang Li Vinno Slide 3

4. IEEE 802.15-13-0006-00-004N Submission Suggest to add Data Priority Classification Aiming at special patients, for example, people with diabetes, blood sugar signal should be considered to be more important than the regular medical signal, such as EEG and ECG. So, there are the different priority Data Frame with special disease like this: Liang Li Vinno Slide 4 Priority level Representative symbols Data TypeExamples 1 C1C1 Emergency alarm Emergency vital signals 2 C2C2 medical signal related to Special disease Blood sugar signal of people with Diabetes 3 C3C3 Regular medical signal EEG/ECG/EMG

5. IEEE 802.15-13-0006-00-004N Submission The Definition and Processing of fame Priority in 4k In IEEE802.15.4K (D4), the Annex Q (Low Energy, Critical infrastructure monitoring system) discuss the Frame priority as: Frame Priority allows LECIM networks to exhibit low latencies for truly critical event messages versus those latencies for link maintenance or other lower priority messages. Liang Li Vinno Slide 5

6. IEEE 802.15-13-0006-00-004N Submission Priority Data on Priority Channel The Priority Medical Data Frame is same as the Frame Priority in LECIM. The Priority medical data could be transmitted on Priority Channel. 4N may adopt the same MAC processing. Liang Li Vinno Slide 6

7. IEEE 802.15-13-0006-00-004N Submission MAC Modification in IEEE802.15.4K The PCA and Frame Priority are processed Modify the CSMA-CA with PCA The DSME solution from 15.4E are adopted in 4K Liang Li Vinno Slide 7

8. IEEE 802.15-13-0006-00-004N Submission The processing of Priority Data Same as 4K, the procedure for priority data and priority channel for priority data may be: –Frame priority is established by two means: PCA allocations and the PCA backoff algorithm, described for CSMA-CA with PCA and for CCA Mode 4 (ALOHA). Both algorithms are used during contention access. –The PCA allocations can only be used when operating in beacon-enabled mode. The PCA is only usable for critical event messages, but the critical event messages do have to compete with each other for access to the channel. –The PCA backoff algorithm is used whenever contention access is applied. Liang Li Vinno Slide 8

9. IEEE 802.15-13-0006-00-004N Submission Summary The medical data is classified as priority data The priority data may transmitted on PCA Based on such definition, the MAC modification in 4K is adopted in 4N. Including DSME, CSMA-CA with PCA. Suggest 4N adopts the MAC modified in IEEE802.15.4K Liang Li Vinno Slide 9