IEEE C80216m-08/1189 Project IEEE 802.16 Broadband Wireless Access Working Group <http://ieee802.org/16> Title Relay Frame Structure Date Submitted 2008-09-12 Source(s) Kanchei (Ken) Loa, Yi-Hsueh Tsai, Chun-Yen Hsu, Yung-Ting Lee, Hua-Chiang Yin, Youn-Tai Lee, Chih-Wei Su Institute for Information Industry Voice: +886-2-66000100 Fax: +886-2-66061007 loa@iii.org.tw Whai-En Chen National Ilan University Shiann-Tsong Sheu, Chih-Cheng Yang National Central University Yang-Han Lee, Yih Guang Jan Tamkang University Re: Call for Reply Comments on TGm SDD Comment Database [SDD Cleanup - MAC] Abstract Comment on 802.16m System Description Document Purpose We provide the comments on relay frame structure 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>. Relay Frame Structure Kanchei (Ken) Loa, Yi-Hsueh Tsai, Chun-Yen Hsu, Yung-Ting Lee, Hua-Chiang Yin, Youn-Tai Lee, Chih-Wei Su, Institute for Information Industry (III) Whai-En Chen National Ilan University 1 IEEE C80216m-08/1189 Shiann-Tsong Sheu, Chih-Cheng Yang National Central University Yang-Han Lee, Yih Guang Jan Tamkang University Introduction We proposed to adopt three options for the relay frame structure in SDD. However, in order to avoid the complexity of coexistence, we proposed that they must not coexist in a 16m relay network. Option 1 and Option 3 have been studied extensively in 16j. Option 2 has the benefits of scheduling efficiency, but it requires detail technical design to resolve interference and power management issues. Proposed Changes: 11.4.4 Relay Support in Frame Structure There are two three options for the Relay frame structure,. These are captured in Figure 23, and Figure 24, and Figure 25. They shall not coexist in a 16m relay network. Further study is required to distill a single frame structure from among these two options. [Insert the following text as indicated:] 16m RS 16m RS/ Carrier 2 Carrier 1 16m BS 16m MS Option 3: STR Relay DL UL BS®RS/MS (Tx) RS/MS®BS (Rx) BS®RS (Rx) RS®BS (Tx) RS®MSs/RSs (Tx) MSs/RSs®RS (Rx) RS®MSs/RSs (Rx) MSs/RSs®RS (Tx) Figure 25 Relay Frame structure option 3 A STR relay station supports simultaneous communication with subordinate station(s) and the superordinate station. It uses the frame structure defined in 11,4,1 for the BS frame and the RS frame to support relay operations. 2