< November, 2011 > Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [More Low Energy Mechanism Details] Date Submitted: [15 November, 2011] Source: [Yang Yang] Company [Wuxi SensingNet Industrialization Research Institute] Address [No.767, Jinzhong Rd, Shanghai, China] Voice:[+86-021-52188899-635], FAX: [+86-021-52182002] E- Mail:[youcyyang@gmail.com] Re: [complement for proposal (DCN: 15-11-0810-01, 9 November, 2011)] Abstract: [This document proposed more details of low energy mechanism for 4k, include message sequence chart and frame, PIB modification suggestion.] Purpose: [Proposal for consideration of inclusion into 802.15.4k.] 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.

More Low Energy Mechanism Details < November, 2011 > More Low Energy Mechanism Details 15-Nov-2011

Outline Proposed Low Energy MAC for 4k Message Sequence Chart < November, 2011 > Outline Proposed Low Energy MAC for 4k Message Sequence Chart New MAC Frame Suggestion New MAC PIB Suggestion Summary

Proposed Low Energy MAC for 4k (1) < November, 2011 > Proposed Low Energy MAC for 4k (1) based on non-beacon mechanism in 15.4 end point listen the channel periodically, other time keep sleeping if has data to transmit, send frame by using CSMA/CA without receiving Ack, retransmit the frame collector main powered, keep listening for the channel if coordinator has unicast frame to send, after receiving frame from the corresponding end point, send the frame as Ack for the frame

Proposed Low Energy MAC for 4k (2) < November, 2011 > Proposed Low Energy MAC for 4k (2) when collector has high QoS lever frame or emergency frame need to send to endpoint, collector need to wakeup end point end point listen the channel periodically, for being available to be woke up by collector collector send wakeup sequence {wakeup frame + interval of wakeup frames} indicate the unicast/broadcast type of the next frame in wakeup frame

Proposed Low Energy MAC for 4k (3) < November, 2011 > Proposed Low Energy MAC for 4k (3) if the high QoS level data or emergency data is unicast destination address of wakeup frame is the address of the corresponding end point on receipt of wakeup frame, end point send data request frame on receipt of data request frame, collector stop sending wakeup sequence, and send corresponding data frame immediately

Proposed Low Energy MAC for 4k (4) <month year> doc.: IEEE 802.15-<doc#> < November, 2011 > Proposed Low Energy MAC for 4k (4) if the high QoS level data or emergency data is broadcast or multicast destination address of wakeup frame is the broadcast address, on receipt of wakeup frame, end point send data request frame, then turn on RX at the designated time for receiving data from collector on receipt of data request frames from all the corresponding end points, collector stop sending wakeup sequence, and send corresponding data frame at the designated time <author>, <company>

Message Sequence Chart < November, 2011 > Message Sequence Chart

New MAC Frame Suggestion < November, 2011 > New MAC Frame Suggestion wakeup frame Wakeup Information Frame Type 00 Unicast 01 Broadcast 10 Multicast Data Transmit Time the designated time for frame sending for unicast wakeup frame, this subfield should be set to 0 Wakeup Address, address of the multicast wakeup frame octets: variable 1 4 2 MHR fields Command Frame Identifier Wakeup Information FCS bits: 2 14 16 Frame Type Data Transmit Time Wakeup Address

New MAC PIB Suggestion new MAC PIB attributes shall be added < November, 2011 > New MAC PIB Suggestion new MAC PIB attributes shall be added Name Type Description macDataReqWaitDuration Integer After sending wakeup frame, the duration of waiting for data request frame, unit of this PIB is us macListenInterval Interval of listen for the channel periodically, unit of this PIB is ms macWakeupFrameNum Number of wakeup frames in each wakeup sequence macWakeupWaitDuration Duration of waiting for wakeup frame, when the end point listen for the channel periodically, unit of this PIB is us

Summary proposed low energy MAC for 4k < November, 2011 > Summary proposed low energy MAC for 4k descript message chart of proposed MAC modification suggestion of MAC new MAC frame new MAC PIB attributes more detailed work is in progress

< November, 2011 > Thank you!