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IEEE N 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
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IEEE 802.15-13-0006-00-004N
Submission
Liang Li VinnoSlide 1
Project: IEEE P802.15 Working Group for Wireless Personal Area Networks Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)(WPANs)
Submission Title: Adaptive timeslot allocation scheme for WBANDate Submitted: Sept 10, 2012Source: 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: [email protected]
Abstract: Opening report for TG4n(MBAN) Task GroupPurpose: 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.
IEEE 802.15-13-0006-00-004N
Submission
Informative AbstractInformative Abstract
• General View• Suggest to add Data Priority
Classification• Priority timeslot Concept in
IEEE802.15.4E• Data Priority and TimeSlot • Conclusion
Liang Li VinnoSlide 2
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 VinnoSlide 3
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 VinnoSlide 4
Priority levelRepresentative
symbols Data Type Examples
1 C1Emergency alarm
Emergency vital signals
2 C2
medical signal related to Special
disease
Blood sugar signal of people with Diabetes
3 C3Regular
medical signal EEG/ECG/EMG
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 VinnoSlide 5
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 VinnoSlide 6
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 VinnoSlide 7
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 VinnoSlide 8
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 VinnoSlide 9
