Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)

1. Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: Proposed changes to DSME MAC for low power consumption Date Submitted: 14 March, 2012 Source: Chang-Sub Shin, Wun-Cheol Jeong, Tae-Joon Park, Ho-Yong Kang Company: ETRI Address: 161 Gajeong-dong, Yuseong-gu, Daejeon, KOREA Voice: +82-42-860-5104, FAX: +82-42-860-4197, E-Mail: wjeong@etri.re.kr Re: Abstract: Proposed changes of extended DSME multi-superframe to meet the requirements of LECIM, TG4k. Purpose: To propose MAC specification to support the requirements of LECIM by enhancing existing DSME MAC 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. ChangSub Shin et al (ETRI)

2. Proposed Changes • MAC Frames: • DSME enhanced beacon: Add a new IE, Extended DSME PAN Descriptor • Modifying existing DSME MAC frames (command) : DSME-Association request, DSME-Association response • MAC Primitives • Add parameters to • DSME-Association.request primitive • DSME-Association.indication primitive • DSME-Association.response primitive • DSME-Association.confirm primitive • MAC PIBs: • DSME-specific MAC PIBs • General MAC PIBs ChangSub Shin et al (ETRI)

3. Enhanced beacon frame - 1 ChangSub Shin et al (ETRI)

4. Enhanced beacon frame - 2 Extended DSME PAN Descriptor IE ChangSub Shin et al (ETRI)

5. Enhanced beacon frame • Add new information element “Extended DSME PAN Descriptor” with new IE element ID. • Add new fields: Hopping Sequence Length, Hopping Sequence • Those fields present only if Hopping Sequence List Flag of Extended DSME PAN Descriptor field is true. Extended DSME PAN Descriptor IE Extended DSME Superframe Specification field ChangSub Shin et al (ETRI)

6. DSME-Association request command • Change DSME-Association request command • Add “DSME Association Type ” field Capability Information ChangSub Shin et al (ETRI)

7. DSME-Association request command • Add “Extended DSME-GTS Allocation” field Extended DSME-GTS Allocation ChangSub Shin et al (ETRI)

8. DSME-Association response command • Change DSME-Association response command • Add Association Status value of “Association Status” field • - 0x04 : DSME-GTS Allocation unsuccessful • Add Allocation Order, BI Index, Superframe ID, Slot ID, Channel Index subfield ChangSub Shin et al (ETRI)

9. DSME-Association primitive • Add parameters to DSME-Association.request primitive • Association Type, Direction, AO • Hopping sequence request • Add parameters to DSME-Association.indication primitive • Association Type, Direction, AO • Hopping sequence request • Add parameters to DSME-Association.response primitive • Association Type, BI Index, Superframe ID, Slot ID, Channel Index • Hopping Sequence Length, Hopping Sequence • Add parameters to DSME-Association.confirm primitive • Association Type, BI Index, Superframe ID, Slot ID, Channel Index • Hopping Sequence Length, Hopping Sequence ChangSub Shin et al (ETRI)

10. DSME-specific MAC PIB • Change the valid range of macMultisuperframeOrder PIB value • MO value range : 0-15 => 0-22 • Add new DSME-specific MAC PIB attributes ChangSub Shin et al (ETRI)

11. General MAC PIB • Add the following general MAC PIB attributes • macExtendedDSMEcapable • macExtendedDSMEenabled ChangSub Shin et al (ETRI)

12. MSC – DSME for LECIM ChangSub Shin et al (ETRI)

13. Example - 1 0 0 Coordinator 3 1 End Device 2 ChangSub Shin et al (ETRI)

14. Example - 2 0 3 1 2 0 Coordinator End Device ChangSub Shin et al (ETRI)