Superposition-Coded Multiplexing : A Non-Orthogonal Multiplexing Scheme for the Downlink of IEEE 802.16m Document Number: IEEE S802.16m-07_213r2, Date.

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Superposition-Coded Multiplexing : A Non-Orthogonal Multiplexing Scheme for the Downlink of IEEE m Document Number: IEEE S802.16m-07_213r2, Date Submitted: Source: Yunzhou Li, Shidong Zhou, Xibin Xu, Xin Su, Xiaofeng Zhong, Jing Wang, Xiaolu Dong, Ying Du, Shanpeng Xiao, Wenqi Liao, LianYang, Zhongkai Wang, Weijun Xu, Thomas Li, {liyunzhou, zhousd, xuxb, suxin, zhongxf, {dongxiaolu, {xiaoshanpeng, Tsinghua Univ., CATR, CMCC, Huawei Technologies, Tianjin Municipal Government, Tianjin Hi-Tech Industrial Park, Legend Silicon Corp. Re: TGm Call for comments on SDD, IEEE m-07/040 Abstract: This document proposes the superposition-coded multiplexing scheme for the downlink of IEEE m, which can be considered as a supplement to the orthogonal multiplexing schemes, e.g., OFDM and TDM, in order to further improve the cell spectrum efficiency. Purpose: For discussion and approval by TGm. 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.

March 21, 2007, Presentation to Verizon MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc Outline The introduction of Superposition-Coded Multiplexing How to use Superposition-Coded Multiplexing in m Conclusion and Text proposal to m SDD

March 21, 2007, Presentation to Verizon MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc The introduction of Superposition-Coded Multiplexing In principle, the superposition-coded multiplexing utilize the effect of near-far:  user A is closer to the BS than user B  the information symbols of the two users are transmitted simultaneously, and the transmit signals for the two users are overlapped  The technique of superposition-coded multiplexing concerns rate allocation and power allocation

March 21, 2007, Presentation to Verizon MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc The introduction of Superposition-Coded Multiplexing The features of the superposition-coded multiplexing concludes as following:  It provides a more flexible means of radio resource allocation to match the granularity of physical resource block and that of service data block Time-Division Multiplexing Superposition-coded multiplexing of 2 users Superposition-coded multiplexing of 3 users

March 21, 2007, Presentation to Verizon MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc How to use Superposition-Coded Multiplexing in m? Superposition-Coded Multiplexing is very useful for the environment of rural area to fully utilize the fact of near-far propagation. Superposition-Coded Multiplexing allows the multiplexing of the users in mode of close-loop and the users in mode of open-loop. Received signal of BPSK and 16QAM overlapping each other: Received signal of the near-end user

March 21, 2007, Presentation to Verizon MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc Conclusion and Text proposal to m SDD Conclusion:  Superposition-Coded Multiplexing can fully utilize the fact of near-far propagation.  Superposition-Coded Multiplexing can provide the frequency/time diversity and multi-user diversity simultaneously. Insert the following text into Physical Layer sub-clause (i.e. Chapter 11 in [X]): Superposition coded multiplexing shall be used to support broadcasting and unicasting to multiple users within each cell, where the same frequency/time/space resource can be assigned to more than one user, in order to provide high system throughput with fairness. Insert the following text into Medium Access Control Sub-Layer sub-clause (i.e. Chapter 10 in [X]): When superposition coded multiplexing is being performed, the MAC sub-layer should be allowed to assign the same radio resource to the set of users ready for superposition coded multiplexing.