Proposal on Full L3 Relay Document Number: IEEE S802.16m-09_2443 Date Submitted: 2009-11-06 Source: Yuqin Chen, Mary Chion, Yang Liu

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Proposal on Full L3 Relay Document Number: IEEE S802.16m-09_2443 Date Submitted: Source: Yuqin Chen, Mary Chion, Yang Liu ZTE Corporation Venue: Base Contribution: C80216m-09_2443 Re : P802.16m/D2 Purpose: Discussion and approval of the proposal into the IEEE P802.16m/D2 Notice: This document does not represent the agreed views of the IEEE 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 Patent Policy: The contributor is familiar with the IEEE-SA Patent Policy and Procedures: and. Further information is located at and. ://standards.ieee.org/board/pat

Introduction L2 Data/L3 Control –[1] shows the performance comparison between L2 Relay and L2 Data/L3 Control Relay and proposes the scheme for L2 Data/L3 Control Relay; Analysis of Cons: –STIDs for AMSs are insufficient because actually they belong to the scope of ABSs. –Different processing for data plane and control plane, which causes ARS different from ABS; –Some signaling messages (REG, DSX) for control are required to get to ABS; Full L3 Relay is proposed.

Current Scheme L2 Data/L3 Control –Control Plane: R6 interface terminates on the RS; R6 messages can be carried over AAI_L2-XFER MAC management messages between the RS and BS. –Downlink: BS performs classification, removes the higher layer headers, keeps the message contents intact and sends it using AAI_L2-XFER, addressed to the STID of the RS and with FID=1 –Uplink: RS sends the message using AAI_L2-XFER to the BS with FID=1.

Current Scheme L2 Data/L3 Control –Data Plane: Downlink: GRE packet is de-tunneled by BS and the MS MAC PDUs are encapsulated into Relay MAC Packet and transmitted to the RS ; Uplink: MS MAC PDUs are encapsulated into Relay MAC PDU by the RS.

Proposed Scheme: Full L3 Relay Full L3 Control Protocol Stack

Proposed Scheme: Full L3 Relay Full L3 Data Protocol Stack

Packet Delivery Steps

Appendix Please refer C80216m-09_xxxx for text proposal.