1. HR-MS Discovery & Association Considerations for 802.16n IEEE 802.16 Presentation Submission Template (Rev. 9) Document Number: IEEE C802.16n-10/0069r1 Date Submitted: 2011-01-06 Source: Eldad ZeiraVoice: InterDigitalE-mail: eldad.zeira@interdigital.com Venue: IEEE 802.16n at session #71 Base Contribution: N/A Purpose: To be discussed by 802.16n Notice: This document does not represent the agreed views of the IEEE 802.16 Working Group or any of its subgroups. It represents only the views of the participants listed in the “Source(s)” field above. It is offered as a basis for discussion. It is not binding on the contributor(s), who reserve(s) the right to add, amend or withdraw material contained herein. Release: The contributor grants a free, irrevocable license to the IEEE to incorporate material contained in this contribution, and any modifications thereof, in the creation of an IEEE Standards publication; to copyright in the IEEE’s name any IEEE Standards publication even though it may include portions of this contribution; and at the IEEE’s sole discretion to permit others to reproduce in whole or in part the resulting IEEE Standards publication. The contributor also acknowledges and accepts that this contribution may be made public by IEEE 802.16. Patent Policy: The contributor is familiar with the IEEE-SA Patent Policy and Procedures: and.http://standards.ieee.org/guides/bylaws/sect6-7.html#6http://standards.ieee.org/guides/opman/sect6.html#6.3 Further information is located at and.http://standards.ieee.org/board/pat/pat-material.htmlhttp://standards.ieee.org/board/pat 1

2. HR-MS Discovery & Association Considerations for 802.16n

3. Goals Introduce and discuss some principles for HR-MS discovery & association As we don’t have a ToC reference it is difficult to produce specific text at this point However we could agree on some principles

4. Two dissimilar scenarios require HR-MS discovery: MS to MS Direct Communication with or without infrastructure stations (MS-MS communications) (SRD 6.1.3.1) HR-MS Forwarding to Network (HR-MS forwarding) (SRD 6.1.3.2) Above will likely be used in different environments and for very different applications

5. Let’s compare: PropertyHR-MS ForwardingMS-MS Communications With / Without Infrastructure Application exampleSmart GridPPDR TopologyTreeAdhoc peer to peer in P2P or P2MP configurations MobilityLowMedium to High Number of subscriber stations Very large compared to current cellular On par with current cellular or smaller Network sharingYes – with non M2M devicesYes (if infrastructure is present) / No Battery consumptionVery lowOn par with current cellular Link duration“Almost permanent”Per call (avoid keeping n(n-1)/2 links) Frequency of link creationVery low (once?)High Link creation latency requirement LooseTight BS can help?YesYes (if infrastructure present) / No

6. Observations Should minimize interference Should minimize battery consumption Speed of link creation not as important Should optimize speed of link creation Interference and battery consumption are not as important HR-MS forwarding MS-MS Communications These differences result in different discovery and association procedures for the two cases

7. Text proposal Section xxx HR-MS discovery for MS-MS communications The HR-MS discovery procedure and signals are designed to optimize the speed of link creation. Section yyy HR-MS discovery for HR-MS Forwarding The HR-MS discovery procedure and signals are designed to minimize interference and battery consumption.