1. Text Proposals of HR-MS Forwarding in 16n Network IEEE 802.16 Presentation Submission Template (Rev. 9) Document Number: IEEE S802.16n-11/0074 Date Submitted: 2011-05-16 Source: Sungcheol Chang, Eunkyung Kim, Sungkyung Kim, Hyun Lee, Chulsik Yoon E-mail: scchang@etri.re.kr,scchang@etri.re.kr ETRI ekkim@etri.re.krekkim@etri.re.kr Venue: Call for Comments on the 802.16n Amendment Working Document Base Contribution: IEEE C802.16n-11/0074 Purpose: To be discussed and adopted by TG802.16n 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

2. Introduction A set of contributions for direct communication –C802.16n-11/0071: Frame Structure and PHY Structure –C802.16n-11/0072: PHY Control Structure –C802.16n-11/0073: MAC Control Operations

3. Forwarding Function of MS Forwarding traffic data between two interfaces –Infrastructure interface between BS and MS –Direct communication interface between MS and MS C802.16n-10/0051,52,53,54. New functionality at infrastructure interface is required to support forwarding function at forwarding MS. –New transmission and singing feature are added at the infrastructure interface

4. Forwarding Procedure: MS List Update The BS maintains the list of MS out of coverage –The MS list is advertised from the BS to all the MSs within the coverage. –The forwarding MS detects an MS not listed in the MS list. The MS is out of service coverage and is allowed only direct communication between the forwarding MS and the MS. –The forwarding MS updates the MS list using DM-List Update Request/Response (DM-LU-REQ/RSP).

5. Forwarding Procedure: Traffic Transmission To minimize the modification of MAC PDU transmission at infrastructure interface –A service flow to identify forwarding traffic A modification of service flow description is required to identify service flow used for forwarding traffic data at forwarding MS.

6. Forwarding Procedure: Signaling FWD (Fwording) Prefix for management messages, which are defined at the infrastructure interface.

7. Forwarding Procedure: Signaling Examples of 1:1 and 1:N Signaling Procedures –Paging to notify MS –Link establishment with RNG-REQ/RSP/CMD. –Link release with DREG-REQ/RSP –Service flow management with DSx-REQ/RSP/ACK

8. Proposed text for 16n AWD See IEEE C802.16n-11/0074.doc to support HR-MS forwarding function –MS List Update –Traffic Transmission –New management messages at infrastructure interface Paging Link management of establishment and release Service flow management