doc.: IEEE 802.15-<doc#> <month year> doc.: IEEE 802.15-<doc#> May 2007 Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [PHY/MAC proposal for TG3c] Date Submitted: [ 7 May, 2007] Source: [Hiroyuki Nakase, Yukimasa Nagai, Akinori Fujimura] Company [Tohoku University, Mitsubishi Electric Corp.] Address [Katahira, Sendai 9808577, Japan / Ohuna, Kamakura 247-8501, Japan ] Voice:[+81-22-217-5531], FAX: [+81-22-217-5533], E-Mail:[nakase@riec.tohoku.ac.jp, Nagai.Yukimasa@ds.MitsubishiElectric.co.jp, Fujimura.Akinori@dw.MitsubishiElectric.co.jp ] Re: [] Abstract: [PHY/MAC proposal document.] Purpose: [To be considered in IEEE802.15.3c standard.] Notice: This document has been prepared to assist the IEEE P802.15. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein. Release: The contributor acknowledges and accepts that this contribution becomes the property of IEEE and may be made publicly available by P802.15. H. Nakase, Tohoku Univ./ Y. Nagai, Mitsubishi Electric <author>, <company>

PHY/MAC proposal for TG3c <month year> doc.: IEEE 802.15-<doc#> May 2007 PHY/MAC proposal for TG3c H. Nakase, Y. Nagai and A. Fujimura Tohoku University Mitsubishi Electric Corp. H. Nakase, Tohoku Univ./ Y. Nagai, Mitsubishi Electric <author>, <company>

Next Step Towards Down Selection May 2007 Next Step Towards Down Selection Tohoku University and Mitsubishi Electric have agreed to create a joint submission with COMPA and a Formal Joint Submission would be made in July Meeting in San Francisco H. Nakase, Tohoku Univ./ Y. Nagai, Mitsubishi Electric

Features of the proposal <month year> doc.: IEEE 802.15-<doc#> May 2007 Features of the proposal PHY Single carrier transmission based on 250Msymbol/sec Binding carriers for throughput of more than 2Gbit/sec Employment of both omni and directional antenna for PNC Dedicated low rate control channel MAC Simple device discovery using the control channel Frame aggregation or frame extension for higher throughput Interference avoidance for protection from jamming due to new DEVs Definition of extended MAC header before MAC payload H. Nakase, Tohoku Univ./ Y. Nagai, Mitsubishi Electric <author>, <company>

doc.: IEEE 802.15-<doc#> <month year> doc.: IEEE 802.15-<doc#> May 2007 Example : Block diagram of transmitter 2Gbit/sec for DEV f1 f2 f3 f4 Directional antenna Mod Mod S/P Convert Data Mod Mod Channel binding based on 250Msymbol/sec single carrier modulation Reduction of symbol rate for commercially available ADC/DAC H. Nakase, Tohoku Univ./ Y. Nagai, Mitsubishi Electric <author>, <company>

doc.: IEEE 802.15-<doc#> <month year> doc.: IEEE 802.15-<doc#> May 2007 Example : Block diagram of transmitter 2Gbit/sec for PNC f1 f2 f3 f4 Directional antenna Mod Mod S/P Convert Data Mod Mod f0 Control Data Mod Transmitter for Control channel using Omni antenna H. Nakase, Tohoku Univ./ Y. Nagai, Mitsubishi Electric Omni antenna <author>, <company>

doc.: IEEE 802.15-<doc#> <month year> doc.: IEEE 802.15-<doc#> May 2007 PHY : Example of Channel assignment 59.0 60.0 61.0 62.0 63.0 64.0 Dedicated Control channel Traffic channel H. Nakase, Tohoku Univ./ Y. Nagai, Mitsubishi Electric <author>, <company>

MAC Protocol Supplements for 802.15.3c May 2007 MAC Protocol Supplements for 802.15.3c H. Nakase, Tohoku Univ./ Y. Nagai, Mitsubishi Electric

Automatic Device Discovery (ADD) May 2007 Automatic Device Discovery (ADD) To achieve higher data transmission, supporting directional communication needed in TG3c alternate PHY on 60GHz. To reduce overhead of automatic device discovery (ADD), supporting omini antenna also needed for MAC design in PNC. Proposed ADD has following features Omni antenna for control CH (Low Rate PHY) Device Discovery, Beaconing, etc Directional antenna for transmission CH (High Rate PHY) Data transmission omni Low Rate Com. PNC RF DEV sector sector RF SW SW RF High Rate Com. H. Nakase, Tohoku Univ./ Y. Nagai, Mitsubishi Electric

Throughput improvement May 2007 Throughput improvement To achieve higher throughput and improve MAC efficiency, frame aggregation and frame extension are necessary in mmW (60GHz) alternate PHY. Reason The conventional 802.15 MAC protocols were not enough to achieve high throughput due to limited frame size (defined by up to 12 bit, 2048 byte) The extension of the length of 12 bit to 16 bit is proposed to realize frame aggregation or frame size extension for higher throughput efficiency H. Nakase, Tohoku Univ./ Y. Nagai, Mitsubishi Electric

Interference Avoidance May 2007 Interference Avoidance New DEV or PNC could become the interfering Transmitter in directional communication, Contention Admission Control (CAC) is necessary to avoid interference Directional Communication Directional Antenna PNC Directional Antenna DEV Interfering Transmitter (PNC/DEV) Interfering Transmitter (PNC/DEV) H. Nakase, Tohoku Univ./ Y. Nagai, Mitsubishi Electric

doc.: IEEE 802.15-<doc#> <month year> doc.: IEEE 802.15-<doc#> May 2007 Summary PHY Single carrier based channel configuration Channel binding for higher data rate Omni and Directional antenna for PNC, Directional antenna for DEV Dedicated low rate control channel MAC Simple definition of Automatic Device Discovery using omni antenna control channel Frame aggregation or extension Interference avoidance Extended MAC header H. Nakase, Tohoku Univ./ Y. Nagai, Mitsubishi Electric <author>, <company>