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Contents : IEEE C802.16m-08/043r1 Project IEEE 802.16 Broadband Wireless Access Working Group http://ieee802.org/16 Title Proposal for IEEE 802.16m Frame Structure for Relay Support Date Submitted 2008-01-17 Source(s) Mo-Han Fong Hang Zhang Gamini Senarath Sophie Vrzic Jun Yuan Kelvin Au Robert Novak Dongsheng Yu Peiying Zhu Anna Tee Sang-Youb Kim Voice: +1-613-765-8983 E-mail: mhfong@nortel.com * http://standards.ieee.org/faqs/affiliationFAQ.html Nortel Networks 3500 Carling Avenue Ottawa Ontario Canada K2H 8E9 Re: IEEE 802.16m-07/047 Call for Contributions on Project 802.16m System Description Document (SDD) on the topic of frame structure Abstract This contribution proposes the IEEE 802.16m frame structure for relay support Purpose To incorporate the proposed frame structure into the Project 802.16m System Description Document Notice Release Patent Policy 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. 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. The contributor is familiar with the IEEE-SA Patent Policy and Procedures: http://standards.ieee.org/guides/bylaws/sect6-7.html#6 and http://standards.ieee.org/guides/opman/sect6.html#6.3 . Further information is located at http://standards.ieee.org/board/pat/pat-material.html and http://standards.ieee.org/board/pat . 1 IEEE C802.16m-08/043r1 Proposal for IEEE 802.16m Frame Structure for Relay Support Mo-Han Fong Hang Zhang Gamini Senarath Sophie Vrzic Jun Yuan Kelvin Au Robert Novak Dongsheng Yu Peiying Zhu Anna Tee Sang-Youb Kim Nortel Networks 1 Introduction This contribution presents the IEEE 802.16m frame structure for relay support. Basic frame structure without relay for single-band and multi-band operations are presented in separate contributions (C802.16m-08/041 C802.16m-08/042). This contribution presents the frame structure for relay added on to the basic frame structure. 2 General Consideration Figure 1 shows the access network architecture with relay for reference purpose. Details are given in contribution C802.16m-07/299r3. The relay frame structure should support the BS-RS link (R1 y) RS-RS link (R1 z) and RS-MS link (R1 x). The RS-MS link should support both legacy MS and 16m MS The hop-to-hop latency should be minimized to meet the latency requirements defined in IEEE 802.16m SRD. R1 R1 16m BS R6 R1 R8 16m MS R1 x 16m RS R1 y 16m BS R6 Access Service Network Gateway 16e MS R1 z 16m MS R1 x 16m RS Access Service Network Layer 1 and Layer 2 protocols to be specified by 802.16m standard Figure 1 Access Network Architecture with Relay 2 IEEE C802.16m-08/043r1 3 Relay Frame Structure for Single Band Operation Figure 2 shows the frame structure for the three hops case. The frame structure can be readily expandable for the case of more than three hops. As described in details in C802.16m-08/041 the DL sub-frame and UL subframe are each partitioned into mini-slots. A group of mini-slots form the legacy zone and another group of mini-slots form the 16m zone. Legacy zones are used for BS/RS transmission/reception to/from the legacy MS. 16m zones are used for BS/RS transmission/reception to/from the 16m MS and also for BS/RS transmission/reception to/from RS. Within the 16m zone one or more mini-slots are defined for the access zone and one or more mini-slots are defined for the global zone. Access zone is used for BS/RS transmission/reception to/from the 16m MS Global transmit zone is used for an RS to transmit to its parent and/or child nodes. Global receive zone is used for an RS to receive from its parent and/or child nodes. The use of global zones reduces the hop-to-hop latency as well as provides more flexible resource multiplexing between the parent and the child nodes. DL sub-frame UL sub-frame DL sub-frame UL sub-frame BS DL Access Zone mini-slots (BS- MS) DL relay Zone mini-slots (BS- RS) UL Access Zone mini-slots (MS- BS) UL Relay Zone mini-slots RS 1 DL access zone mini-slots (RS- MS) Global Rx Zone mini-slots (RS receives from parent/child) UL Access Zone mini-slots (MS- RS) Global Tx Zone mini-slots (RS transmits to parent/child)) RS 2

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