1. doc.: IEEE 802.15-12-0547-00-0l2r Submission September 2012 N. Sato & K. FukuiSlide 1 Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [L2R Functionary Requirement ] Date Submitted: [20 September, 2012] Source1: [Noriyuki Sato, Kiyoshi Fukui] Company [OKI] Address [2-5-7 Hommachi chuo-ku, Osaka, Japan] Voice:[+81-6-6260-0700], FAX: [+81-6-6260-0770], E-Mail:[sato652@oki.com, fukui535@oki.com] Re: [This is the original document.] Abstract:[This documents intends for discussion of the L2R functionality.] Purpose:[For discussion] 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. doc.: IEEE 802.15-12-0547-00-0l2r Submission September 2012 N. Sato & K. FukuiSlide 2 L2 routing functionality requirements L2R IG Presentation 20 th September 2012 Palm Springs CA Noriyuki Sato / Kiyoshi Fukui OKI Electric Industry Co., Ltd.

3. doc.: IEEE 802.15-12-0547-00-0l2r Submission September 2012 N. Sato & K. FukuiSlide 3 Summary This presentation provides some of tips for following perspectives –To show use cases to share what L2R protocol will be required –Proposing preliminary ideas regarding what functionalities will be required Note: This is really preliminary and does not cover all.

4. doc.: IEEE 802.15-12-0547-00-0l2r Submission September 2012 N. Sato & K. FukuiSlide 4 Vending machine Smart metering meteringM2M Smart meter Concentrator Environmental monitoring Ad-hoc data collection What mesh will be required for FAN? Mainly, data collection from many nodes in FAN and control of many nodes in FAN from the outer server – Many to one and One to many routing protocol will be suitable Ad-hoc data collection in the field area may be required in some use cases – Reactive P2P routing may be required Covering 1000+ nodes within one PAN and expected to interwork Low power technology may be required in environmental monitoring or gas metering. Low power routing

5. doc.: IEEE 802.15-12-0547-00-0l2r Submission September 2012 N. Sato & K. FukuiSlide 5 Concentrator 1 Concentrator 2 Concentrator3 Concentrator1 Concentrator2 Concentrator4 Concentrator2 is deactivated Concentrator2 is reactivated PAN1 PAN2 PAN3 PAN1 PAN3 An example scenario for managing FAN Network should be configurable and workable automatically. Less cost repairing process will be required when the network has problem. After the problem has gone, network should be reformed (maybe to almost original ) to reduce the load.

6. doc.: IEEE 802.15-12-0547-00-0l2r Submission September 2012 N. Sato & K. FukuiSlide 6 Non IP protocol Multiple protocols of upper layer Ether allows multiple protocols to work on it. L2R may need to do like it. To distinguish the protocols, it may need to hire a Protocol ID. IPv6 6LoWPAN L2R mesh IEEE802.15.4 TCPUDP Mesh Management This can be vendor specific or be defined in the standard. But we should consider so that multiple protocols works over L2R mesh at least. Protocol ID?

7. doc.: IEEE 802.15-12-0547-00-0l2r Submission September 2012 N. Sato & K. FukuiSlide 7 Other required stuffs To make it work in the large network –Enforcement of reliability Enhancement of hop-by-hop retransmission to reduce the E2E retransmission –Scattering the Joining timing when the whole network restarts Scalability –Nodes density, network size etc. Sleeping routers and sleeping end nodes for the environmental monitoring Management of flooding, multicasting –Timing, grouping etc. Congestion avoidance, flow control Security Priority of frames Others –Considering scalability of hardware resources to network size

8. doc.: IEEE 802.15-12-0547-00-0l2r Submission September 2012 N. Sato & K. FukuiSlide 8 Thanks !