Complete Proposal for 802.11ad Month Year doc.: IEEE 802.11-yy/xxxxr0 May 2010 Complete Proposal for 802.11ad Date: 2010-05-01 Authors: Name Company Address Phone Email Hiroshi Harada NICT 3-4, Hikarino-oka, Yokosuka, Japan +81-46-847-5074 harada@nict.go.jp Chang-Woo Pyo cwpyo@nict.go.jp Zhou Lan lan@nict.go.jp Junyi Wang junyi.wang@nict.go.jp Ryuhei Funada funada@nict.go.jp Tuncer Baykas tbaykas@gmail.com Chin Sean Sum sum@nict.go.jp Akio Iso Akio.Iso@nict.go.jp Shuzo Kato shu.kato@nict.go.jp Masahiro Umehira umehira@mx.ibaraki.ac.jp Lu Liru, Alina 20 Science Park Road, #01-09A/10, TeleTechPark, Singapore liru@nict.com.sg Zhang Xin zhangxin@nict.com.sg Hiroshi Harada, NICT John Doe, Some Company

May 2010 Name Company Address Phone Email Hirokazu Sawada Tohoku University 2-1-1 Katahira, Aoba-ku,. Sendai. 980-8577 Japan sawahiro@riec.tohoku.ac.jp Ichirou Ida Fujitsu Limited 211-8588,kawasaki, kanagawa, Japan Ida.ichirou@jp.fujitsu.com Kaoru Yokoo yokoo@labs.fujitsu.com Nobuhiko Shibagaki Hitachi 1-280, Higashikoigakubo Kokubunji, Tokyo, 185-8601 Japan Nobuhiko.shibagaki.qr@hitachi.com Shoichi Kitazawa ATR kitazawa@atr.jp Hiroshi Harada, NICT

May 2010 Summary This document proposes the PHY and MAC layer design for 802.11ad operating in the 60GHz band PHY layer design A hybrid PHY designed consisting of the SC PHY and the OFDM PHY is proposed Channelization of the 60GHz band is presented Data rate modes of respective PHYs are listed Common mode signaling bridging across two PHYs is introduced Frame format for respective PHYs are presented MAC layer design Proposed MAC contains Basic MAC and Enhanced MAC Basic MAC is based on 802.11-2007 and other amendments to support 802.11 user experience Enhanced MAC is designed to achieve very high throughput (>1Gbps), directivity support, coexistence with other 60GHz systems and QoS improvement Beam forming Hiroshi Harada, NICT

Motivation of Proposal May 2010 Motivation of Proposal This proposal has the following purposes of Enhancement of 802.11 PHY and MAC to fulfill the requirements of 802.11ad system Co-existence of other already standardized 60GHz systems such as 802.15.3c WPAN Hiroshi Harada, NICT

Presentation Outline Section 1: PHY Proposal for 802.11ad May 2010 Presentation Outline Section 1: PHY Proposal for 802.11ad Overview of the Proposed 802.11ad PHY Channelization Modulation and Coding Common Mode Signaling SC PHY Frame Format OFDM PHY Frame Format PHY Simulation Results Section 2: MAC Proposal for 802.11ad Overview of the proposed 802.11ad MAC Enhanced MAC Co-existence MAC Simulation Results Hiroshi Harada, NICT

Section 1: PHY Proposal for 802.11ad May 2010 Section 1: PHY Proposal for 802.11ad

Abbreviations FEC – forward error correction May 2010 Abbreviations FEC – forward error correction MCS – Modulation and Coding Scheme SC - Single carrier OFDM - Orthogonal Frequency Division Multiplexing CMS – Common Mode Signaling Hiroshi Harada, NICT

Presentation Outline (PHY Layer) May 2010 Presentation Outline (PHY Layer) Overview of the Proposed 802.11ad PHY Channelization Modulation and Coding Common Mode Signaling SC PHY Frame Format OFDM PHY Frame Format Hiroshi Harada, NICT

Overview of the Proposed 802.11ad PHY May 2010 Overview of the Proposed 802.11ad PHY The proposed 802.11ad PHY consists any or the combination of the following: SC PHY OFDM PHY Features of the PHY modes: The SC PHY mainly targets applications with low complexity The OFDM PHY mainly targets applications that require higher data rates To reduce implementation burden, both PHYs are designed to have similarities in the aspects of frame construction To manage multi-PHY-mode management and mitigate interference, the CMS is specified to facilitate coexistence between the SC PHY and the OFDM PHY Hiroshi Harada, NICT

May 2010 Channelization Channel Number Lower Freq. (GHz) Center Freq. Upper Freq. Nyquist BW (MHz) Channel Spacing (MHz) 1 57.240 58.320 59.400 1760 2160 2 60.480 61.560 3 62.640 63.720 4 64.800 65.880 Hiroshi Harada, NICT

Overview on SC and OFDM Data Rates May 2010 Overview on SC and OFDM Data Rates The SC and OFDM classes of data rates give flexibility to various potential applications requiring data rate support from several hundreds of Mbps to several Gbps The data rate classes are categorized as: Class 1 – up to 1.6Gbps Class 2 – up to 3 Gbps Class 3 – up to 7 Gbps A Robust MCS called CMS is proposed to bridge between the SC and OFDM PHYs In OFDM PHY, three modes with different FFT sizes are proposed for flexibility. Hiroshi Harada, NICT

Timing Related Values for SC PHY May 2010 Timing Related Values for SC PHY Description Value Unit Symbol Rate 1760 Mchips/s Symbol Duration ~0.568 ns Subblock Length 512 chips Pilot Word length 64 Pilot Word Duration ~37 Data symbols per subblock 448 Subblock Duration ~290.9 Subblock rate ~3.44 MHz Hiroshi Harada, NICT

MCSs for SC PHY May 2010 *Mandatory MCSs MCS Class MCS Index Data Rate Modulation FEC Coding Rate Data Spreading Factor PW=64 PW=0 SC Class 1 0 * 26 Mbps p/2-BPSK RS (255,239) 0.937 64 1 361 Mbps 412Mbps 4 2 722 Mbps 825Mbps 3 * Mbps 1650 Mbps 1160 Mbps 1320 Mbps LDPC(672,504) 0.75 5 385 Mbps 440 Mbps LDPC(672,336) 0.5 6 880 Mbps SC Class 2 7 1760 Mbps p/2-QPSK 8 2640 Mbps 9 2700 Mbps 3080 Mbps LDPC(672,588) 0.875 10 3300 Mbps SC Class 3 11 3470 Mbps 3960 Mbps p/2-8PSK 12 4620 Mbps 5280 Mbps p/2-16QAM *Mandatory MCSs Hiroshi Harada, NICT

Timing Related Values for OFDM PHY MODE 1 May 2010 Timing Related Values for OFDM PHY MODE 1 Description Value Unit Nominal Bandwidth 2640 MHz Number of Subcarriers 512 Number of Data Subcarriers 336 Number of Reserved Subcarriers 16 Number of Pilot Subcarriers Number of NULL Subcarriers 141 Number of DC Subcarriers 3 Subcarrier Frequency Spacing 5.15625 Nominal used bandwidth 1815 FFT period ~193.94 ns Guard Interval Duration ~24.24 OFDM Symbol Duration ~218.18 Hiroshi Harada, NICT

Timing Related Values for OFDM PHY MODE 2 May 2010 Timing Related Values for OFDM PHY MODE 2 Description Value Unit Nominal Bandwidth 2640 MHz Number of Subcarriers 128 Number of Data Subcarriers 84 Number of Pilot Subcarriers 4 Number of NULL Subcarriers 35 Number of DC Subcarriers 1 Subcarrier Frequency Spacing 20.625 Nominal used bandwidth 1815 FFT period ~48.485 ns Guard Interval Duration ~6.06 OFDM Symbol Duration ~54.545 Hiroshi Harada, NICT

Timing Related Values for OFDM PHY MODE 3 May 2010 Timing Related Values for OFDM PHY MODE 3 Description Value Unit Nominal Bandwidth 2640 MHz Number of Subcarriers 64 Number of Data Subcarriers 42 Number of Pilot Subcarriers 2 Number of NULL Subcarriers 19 Number of DC Subcarriers 1 Subcarrier Frequency Spacing 41.25 Nominal used bandwidth 1815 FFT period ~24.242 ns Guard Interval Duration ~6.06 OFDM Symbol Duration ~30.3 Hiroshi Harada, NICT

MCS for OFDM PHY May 2010 MCS Class Data Rate Modulation FEC Coding Rate Spreading OFDM Class 1 1540 QPSK LDPC(672,336) 0.5 1 OFDM Class 2 2310 LDPC(672,504) 0.75 2695 LDPC(672,588) 0.875 OFDM Class 3 3080 16-QAM 4620 5390 6930 64-QAM *FFT size: 512, 128, 64 Data rates are for FFT sizes 512 and 128. For 64, data rates are around 10% less. Hiroshi Harada, NICT

MCS for Common Mode Signaling May 2010 MCS for Common Mode Signaling MCS Index Data Rate PW=0 Modulation FEC Coding Rate Data Spreading Factor 26 p/2-BPSK RS (255,239) 0.937 64 *Note that CMS is the first MCS in the SC PHY table Hiroshi Harada, NICT

CMS Functional Description May 2010 CMS Functional Description CMS is the most robust and long reaching MCS in the SC PHY and is specified to bridge between the SC PHY and OFDM PHY CMS is the mandatory MCS for all STAs CMS is employed in procedures facilitating multi-PHY-mode network management (i.e. discovery and synchronization) and other cross-PHY procedures Hiroshi Harada, NICT

May 2010 Generic Frame Format The following slides show the components of the SC PHY and OFDM PHY frames PLCP preamble SIGNAL DATA The modulation and coding schemes used in respective components are given The generic frame format for SC PHY and OFDM PHY are the same PLCP preamble structure for SC PHY and OFDM PHY are the same SIGNAL field structure for SC PHY and OFDM PHY are the same Hiroshi Harada, NICT

SC PHY Frame Format ~ General ~ May 2010 SC PHY Frame Format ~ General ~ PLCP Preamble SIGNAL DATA Modulation p/2 BPSK p/2 BPSK, p/2 QPSK, p/2 8PSK, p/2 16-QAM FEC N/A RS(23,7) RS(255,239), LDPC(672,336), LDPC(672,504), LDPC(672,588) Spreading factor 64, 2 64, 4, 2, 1 Hiroshi Harada, NICT

OFDM PHY Frame Format ~ General ~ May 2010 OFDM PHY Frame Format ~ General ~ PLCP Preamble SIGNAL DATA Modulation p/2 BPSK QPSK-OFDM QPSK,-OFDM 16-QAM-OFDM, 64-QAM-OFDM FEC N/A LDPC(672,336) LDPC(672,336), LDPC(672,504), LDPC(672,588) Spreading factor 1 Hiroshi Harada, NICT

SC and OFDM PHY Frame Format ~ PLCP Preamble for CMS ~ May 2010 SC and OFDM PHY Frame Format ~ PLCP Preamble for CMS ~ CMS Preamble Hiroshi Harada, NICT

SC and OFDM PHY Frame Format ~ PLCP Preamble for SC PHY and OFDM PHY ~ May 2010 SC and OFDM PHY Frame Format ~ PLCP Preamble for SC PHY and OFDM PHY ~ SC Preamble OFDM Preamble Hiroshi Harada, NICT

SC and OFDM PHY Frame Format ~ PLCP Preamble Golay Sequences ~ May 2010 SC and OFDM PHY Frame Format ~ PLCP Preamble Golay Sequences ~ Golay Sequence Name Sequence Values a128 0536635005C963AFFAC99CAF05C963AF b128 0A396C5F0AC66CA0F5C693A00AC66CA0 a256 = [b128 a128 ] b256 = [b128 a128 ] Hiroshi Harada, NICT

PHY Frame Format ~ SIGNAL ~ May 2010 PHY Frame Format ~ SIGNAL ~ Scrambler ID Aggregation MCS Frame Length Pilot Word Length Reserved PHY header (5 octets) contains Scrambler ID (4 bits) Information on scrambling seed Aggregation (1 bit) indicates whether aggregation is used MCS (5 bits) indicates the modulation and coding information of DATA Frame length (20 bits) Indicates the length of the frame Pilot Word Length (2 bit) indicates the type of pilot word length in DATA, ignored in OFDM PHY Reserved (8 bits) Hiroshi Harada, NICT

SC PHY PLCP SIGNAL Construction May 2010 SC PHY PLCP SIGNAL Construction Hiroshi Harada, NICT

SC PHY DATA Construction May 2010 SC PHY DATA Construction Hiroshi Harada, NICT

OFDM PHY PLCP SIGNAL Construction May 2010 OFDM PHY PLCP SIGNAL Construction Hiroshi Harada, NICT

OFDM PHY DATA Construction May 2010 OFDM PHY DATA Construction Hiroshi Harada, NICT

Results of PHY Simulation May 2010 Results of PHY Simulation Hiroshi Harada, NICT

Simulation Parameters for Single Carrier PHY Evaluation May 2010 Simulation Parameters for Single Carrier PHY Evaluation Description Value Unit Symbol Rate 1760 Mchips/s SymbolDuration ~0.568 ns Sublock Length 512 chips Pilot Word length 64 Data symbols per subblock 448 Subblock Duration ~290.9 Subblock rate ~3.44 MHz Hiroshi Harada, NICT

Simulation Channel Model May 2010 Simulation Channel Model AWGN channel model Fading channel model and scenarios Living Room (LR) Omni to Omni LOS Omni to Direction NLOS Directional to Directional NLOS Conference Room (CR) Hardware impairments as described in evaluation documents are considered in the simulation Hiroshi Harada, NICT

SC PHY MCSs May 2010 MCS Class MCS Index Data Rate Modulation FEC Coding Rate Data Spreading Factor PW=64 PW=0 SC Class 1 0 * 26 Mbps p/2-BPSK RS (255,239) 0.937 64 1 361 Mbps 412Mbps 4 2 722 Mbps 825Mbps 3 * Mbps 1650 Mbps 1160 Mbps 1320 Mbps LDPC(672,504) 0.75 5 385 Mbps 440 Mbps LDPC(672,336) 0.5 6 880 Mbps SC Class 2 7 1760 Mbps p/2-QPSK 8 2640 Mbps 9 2700 Mbps 3080 Mbps LDPC(672,588) 0.875 10 3300 Mbps SC Class 3 11 3470 Mbps 3960 Mbps p/2-8PSK 12 4620 Mbps 5280 Mbps p/2-16QAM Hiroshi Harada, NICT

May 2010 SC All MCSs AWGN PER Hiroshi Harada, NICT

Living Room Omni-Omni-LOS May 2010 Living Room Omni-Omni-LOS PA Backoff Power: MCS0: 0.5dB MCS1: 0.5dB MCS2: 0.5dB MCS3: 0.5dB MCS4: 0.5dB MCS5: 0.5dB MCS6: 0.5dB MCS7: 5dB MCS8: 5dB MCS9: 5dB MCS10: 6dB MCS11: 5dB MCS12: 5dB Hiroshi Harada, NICT

Conference Room Omni-Omni-LOS May 2010 Conference Room Omni-Omni-LOS PA Backoff Power: MCS0: 0.5dB MCS1: 0.5dB MCS2: 0.5dB MCS3: 0.5dB MCS4: 0.5dB MCS5: 0.5dB MCS6: 0.5dB MCS7: 5dB MCS8: 5dB MCS9: 5dB MCS10: 6dB MCS11: 5dB MCS12: 5dB Hiroshi Harada, NICT

Living Room Omni-Directional-NLOS May 2010 Living Room Omni-Directional-NLOS PA Backoff Power: MCS0: 0.5dB MCS1: 0.5dB MCS2: 0.5dB MCS3: 0.5dB MCS4: 0.5dB MCS5: 0.5dB MCS6: 0.5dB MCS7: 5dB MCS8: 5dB MCS9: 5dB MCS10: 6dB MCS11: 5dB MCS12: 5dB Hiroshi Harada, NICT

Conference Room Omni-Directional-NLOS May 2010 PA Backoff Power: MCS0: 0.5dB MCS1: 0.5dB MCS2: 0.5dB MCS3: 0.5dB MCS4: 0.5dB MCS5: 0.5dB MCS6: 0.5dB MCS7: 5dB MCS8: 5dB MCS9: 5dB MCS10: 6dB MCS11: 5dB MCS12: 5dB Hiroshi Harada, NICT

Living Room Directional-Directional-NLOS May 2010 Living Room Directional-Directional-NLOS PA Backoff Power: MCS0: 0.5dB MCS1: 0.5dB MCS2: 0.5dB MCS3: 0.5dB MCS4: 0.5dB MCS5: 0.5dB MCS6: 0.5dB MCS7: 5dB MCS8: 5dB MCS9: 5dB MCS10: 6dB MCS11: 5dB MCS12: 5dB Hiroshi Harada, NICT

Conference Room Directional-Directional-NLOS May 2010 Conference Room Directional-Directional-NLOS PA Backoff Power: MCS0: 0.5dB MCS1: 0.5dB MCS2: 0.5dB MCS3: 0.5dB MCS4: 0.5dB MCS5: 0.5dB MCS6: 0.5dB MCS7: 5dB MCS8: 5dB MCS9: 5dB MCS10: 6dB MCS11: 5dB MCS12: 5dB Hiroshi Harada, NICT

Simulation Parameters for OFDM PHY Evaluation May 2010 Simulation Parameters for OFDM PHY Evaluation Description Value Unit Nominal Bandwidth 2640 MHz Number of Subcarriers 512 Number of Data Subcarriers 336 Number of Reserved Subcarriers 16 Number of Pilot Subcarriers Number of NULL Subcarriers 141 Number of DC Subcarriers 3 Subcarrier Frequency Spacing 5.15625 FFT period ~193.94 ns Guard Interval Duration ~24.24 OFDM Symbol Duration ~218.18 Packet Size 6720 Bytes Hiroshi Harada, NICT

OFDM PHY MCSs May 2010 MCS Class Data Rate Modulation FEC Coding Rate Spreading OFDM Class 1 1540 QPSK LDPC(672,336) 0.5 1 OFDM Class 2 2310 LDPC(672,504) 0.75 2695 LDPC(672,588) 0.875 OFDM Class 3 3080 16-QAM 4620 5390 6930 64-QAM Hiroshi Harada, NICT

May 2010 OFDM on AWGN Hiroshi Harada, NICT

OFDM MCSs on Channel model #1- Living room, Omni Tx, Omni Rx, LOS May 2010 OFDM MCSs on Channel model #1- Living room, Omni Tx, Omni Rx, LOS PA Backoff Power: QPSK(1/2): 10dB QPSK(3/4): 10dB QPSK(7/8): 10dB 16QAM(1/2): 14dB 16QAM(3/4) :14dB 16QAM(7/8): 14dB 64QAM(3/4): 14dB Hiroshi Harada, NICT

May 2010 OFDM MCSs on Channel model #2- Living room, Omni Tx, Directional Rx, NLOS PA Backoff Power: QPSK(1/2): 10dB QPSK(3/4): 10dB QPSK(7/8): 10dB 16QAM(1/2): 14dB 16QAM(3/4) :14dB 16QAM(7/8): 14dB 64QAM(3/4): 14dB Hiroshi Harada, NICT

May 2010 OFDM MCSs on Channel model #3-Living room, Directional Tx, Directional Rx, NLOS PA Backoff Power: QPSK(1/2): 10dB QPSK(3/4): 10dB QPSK(7/8): 10dB 16QAM(1/2): 14dB 16QAM(3/4) :14dB 16QAM(7/8): 14dB 64QAM(3/4): 14dB Hiroshi Harada, NICT

OFDM MCSs on Channel model #4- Conference room, Omni Tx, Omni Rx, LOS May 2010 OFDM MCSs on Channel model #4- Conference room, Omni Tx, Omni Rx, LOS PA Backoff Power: QPSK(1/2): 10dB QPSK(3/4): 10dB QPSK(7/8): 10dB 16QAM(1/2): 14dB 16QAM(3/4) :14dB 16QAM(7/8): 14dB 64QAM(3/4): 14dB Hiroshi Harada, NICT

May 2010 OFDM MCSs on Channel model #5- Conference room, Omni Tx, Directional Rx, NLOS PA Backoff Power: QPSK(1/2): 10dB QPSK(3/4): 10dB QPSK(7/8): 10dB 16QAM(1/2): 14dB 16QAM(3/4) :14dB 16QAM(7/8): 14dB 64QAM(3/4): 14dB Hiroshi Harada, NICT

May 2010 OFDM MCSs on Channel model #6- Conference room, Directional Tx, Directional Rx, NLOS PA Backoff Power: QPSK(1/2): 10dB QPSK(3/4): 10dB QPSK(7/8): 10dB 16QAM(1/2): 14dB 16QAM(3/4) :14dB 16QAM(7/8): 14dB 64QAM(3/4): 14dB Hiroshi Harada, NICT

FA/MD of Proposed SC SFD May 2010 FA/MD of Proposed SC SFD a: NICT SC SFD; b: NICT OFDM SFD c: 802.15.3c MR SFD; d: 802.15.3c HR SFD e: 802.15.3c CTAP SFD; f: 802.15.3c CAP SFD Hiroshi Harada, NICT

FA/MD of Proposed OFDM SFD May 2010 FA/MD of Proposed OFDM SFD a: NICT OFDM SFD; b: NICT SC SFD c: 802.15.3c MR SFD; d: 802.15.3c HR SFD e: 802.15.3c CTAP SFD; f: 802.15.3c CAP SFD Hiroshi Harada, NICT

Section 2: MAC Proposal for 802.11ad May 2010 Section 2: MAC Proposal for 802.11ad Hiroshi Harada, NICT

Presentation Outline (MAC Layer) May 2010 Presentation Outline (MAC Layer) Part1: Overview of the proposed 802.11ad MAC Concept Basic MAC Enhanced MAC High level MAC operations Part2: Enhanced MAC Contention-free period (CFP) scheduling Enhanced data transmission Enhanced co-existence Directivity support Part3: MAC Simulation Results Point to point link Home living room Office conference room Hiroshi Harada, NICT

Part1: Overview of the proposed 802.11ad MAC May 2010 Part1: Overview of the proposed 802.11ad MAC Hiroshi Harada, NICT

Concept for Proposed 802.11ad MAC May 2010 Concept for Proposed 802.11ad MAC Proposed 802.11ad MAC contains Basic MAC to maintain 802.11 user experience, and Enhanced MAC to achieve very high throughput and to support directivity and co-existence 802.11ad MAC Basic MAC based on 802.11-2007 Enhanced MAC for Very High Throughput, Directivity and Co-existence + Hiroshi Harada, NICT

May 2010 Basic MAC All basic functionalities of 802.11ad MAC are based on 802.11-2007 and other available amendments to support 802.11 user experience Basic MAC functions Scan Association/Re-associaton/Disassociation Authentication/Dis-authentication Channel Accesses – DCF, PCF, HCF, HCCA Other functions – synchronization, power management, security, etc. Hiroshi Harada, NICT

May 2010 Enhanced MAC Enhanced MAC is designed to achieve very high throughput (>1Gbps), directivity support, coexistence with other 60GHz systems and QoS improvement Enhanced MAC functions Very High Throughput Achievement Contention-Free Period (CFP) Scheduling Enhanced data transmission in CFP Frame aggregation & Aggregation-ACK Bi-directional aggregation with ACK Directivity Support Directional association Beamforming Co-existence Support Co-existence among homogeneous systems Co-existence among heterogeneous systems Hiroshi Harada, NICT

High-Level MAC Operations in 802.11ad May 2010 High-Level MAC Operations in 802.11ad Hiroshi Harada, NICT

Part2: Details of Enhanced MAC May 2010 Part2: Details of Enhanced MAC Hiroshi Harada, NICT

Contention-Free Period Scheduling May 2010 Contention-Free Period Scheduling Contention-Free Period (CFP) scheduling supports enhanced data transmission Dynamically scheduled CFP guarantees the high throughput and delay requirements of 60GHz applications B (Beacon) TS (Traffic Stream) CP (Contention Period) CFP(Contention Free Period) (Example of contention-free period scheduling) Hiroshi Harada, NICT

Enhanced Data Transmission May 2010 Enhanced Data Transmission Enhanced data transmission in CFP includes beamforming support, frame aggregation/aggregation-ACK Beamforing period in CFP guarantees the beamform procedure free from interference Frame aggregation / Aggregation-ACK/ Bi-directional aggregation with is provided to meet QoS requirements of throughput and delay On-demand aggregation is performed with negotiation between Src/Dest (Example of data transmission during CFP) Hiroshi Harada, NICT

Aggregation / Aggregation ACK / Bi-directional aggregation with ACK May 2010 Aggregation / Aggregation ACK / Bi-directional aggregation with ACK Proposed aggregation supports to aggregate video traffics (video aggregation MSDU, VA-MSDU) VA-MSDU frame body consists of MAC subheader with HCS and aggregated MSDUs with Subframe FCS (SFCS) MAC subheader contains Aggregated MSDUs information Aggregation ACK (A-ACK) bitmap VA-MSDU allows maximum length of each MSDU (including SFCS) : 1Mbytes maximum length of aggregated MSDUs : 16Mbytes Bi-directional VA-MSDU by using both of aggregation and aggregation ACK bitmap SFCS (Subframe FCS)

Negotiation for Aggregation May 2010 Negotiation for Aggregation Negotiation for Aggregation for capability confirmation in CFP or CP on-demand between Src and Dest directly between AP and STAs directly between STA and STA after Directed Link Setup (DLS) defined in 802.11-2007 Neg. DLS Neg. Neg. Case 1 : communication between AP and STAs Neg. Case 2 : communication between STA and STA Hiroshi Harada, NICT

Virtual Traffic Stream May 2010 Virtual Traffic Stream Virtual Traffic Stream (VTS) supports enhanced throughput by spatial reuse The Probing Stage determines the TSs that are able to coexist within the same time (low or no mutual interference), then schedule them to share the same time slot Hiroshi Harada, NICT

May 2010 Directivity Support Directivity support for 802.11ad system includes directional association and beamforming Directional association Directional beacons (up to 4 beacons) and Directional contention periods (CPs) enable STAs to associate to AP directionally Beamforming Beamforming protocol is based on 11/496r0 Q-beacon (Directional Quasi-omni beacon) GT (Guardtime) Hiroshi Harada, NICT

Directional Association Example May 2010 Directional Association Example AP broadcasts beacons to the supported directions determines the directional beacon interval appropriately STAs scan beacons on the supported directions associate with AP on the directional CP Hiroshi Harada, NICT

Enhanced Co-existence (1/4) - Co-existence for homogeneous systems - May 2010 Enhanced Co-existence (1/4) - Co-existence for homogeneous systems - Enhanced co-existence provides co-existence among homogeneous systems and among heterogeneous systems Co-existence for homogeneous systems provides QoS assurance during CFP Avoid mutual interference by overlapping homogenous networks to data transmission during CFP Hiroshi Harada, NICT

Enhanced Co-existence (2/4) - Co-existence for homogeneous systems - May 2010 Enhanced Co-existence (2/4) - Co-existence for homogeneous systems - Co-existence action frame (CAF) supports avoiding mutual interference by overlapping homogenous networks to data transmission during CFP CAF includes schedule information of CFP STAs periodically sends out CAFs for potentially incoming homogeneous networks STAs scan CAFs before transmitting data during CFP Hiroshi Harada, NICT

Enhanced Co-existence (3/4) - Co-existence for heterogeneous systems - May 2010 Enhanced Co-existence (3/4) - Co-existence for heterogeneous systems - There are two 60GHz unlicensed wireless system specifications in the IEEE 802 (802.15.3c and 802.11ad) A mechanism is proposed to facilitate coexistence between 802.15.3c and 802.11ad while minimizing the additional complexity in implementation The co-existence mechanism is based on the document 10/0231r3 (John R. Barr） Hiroshi Harada, NICT

Enhanced Co-existence (4/4) - Co-existence for heterogeneous systems - April 2009 doc.: IEEE 802.19-09/xxxxr0 May 2010 Enhanced Co-existence (4/4) - Co-existence for heterogeneous systems - To detect other 60GHz systems operating in the same channels, the BSSs in the vicinity have a quiet period to create a clear channel The quiet periods scheduled by different BSSs partially align to prevent the signal from adjacent BSS interfering the detection of other systems. B B B BSS1 Quiet Quiet Quiet B B B BSS2 Quiet Quiet Quiet B B B BSS3 Quiet Quiet Quiet B AP1 requests AP2 and AP3 to align their quiet periods for interference detection Beacon BSS3 Quiet Quiet period BSS1 BSS2 DS Hiroshi Harada, NICT Rich Kennedy, Research In Motion

Part3: System Evaluation May 2010 Part3: System Evaluation Hiroshi Harada, NICT

May 2010 Abstract The PHY abstraction and antenna model for system simulation are provided Assumptions and simulation parameters are summarized for each scenario The following simulation are performed to show how the proposal meets the requirements Point to point link simulation Home living room simulation Office conference room simulation Hiroshi Harada, NICT

PHY Abstraction and Antenna Model May 2010 PHY Abstraction and Antenna Model PHY abstraction Simulation results in slides 35-52 are used for PHY abstract The path loss model for all the scenarios defined in 0334/r7are implemented in MAC simulations The human blockage model defined in 0334/r7 is implemented Antenna model It is assumed in MAC simulation that beam forming procedure has been completed before data transmission The peak gain directions of the sender STA and receiver STA are aligned before the data transmission is started Peak gain of the TX/RX antenna: 14dBi Coverage range: 60 degree Hiroshi Harada, NICT

May 2010 Scheduling Algorithm Traffics are classified into two categories, isochronous and asynchronous traffic Uncompress video and lightly compressed video are considered as isochronous traffic Hard disk file transfer, local data transfer and web browsing are considered as asynchronous traffic Both isochronous traffic and asynchronous traffic use CFP for data transmission A TS is created for each traffic and corresponding time slots are allocated For isochronous traffic The time slots are allocated in each BIs until the TS is terminated For asynchronous traffic The time slots are released after the end of current BI New time slots in the following BIs need to be allocated if there is still data waiting in the queue for transmission EDCA is adopted to coordinate the TS allocations based on TS requests from different STAs Access chategories Traffic AC_VI Uncompressed video and lightly compressed video AC_BE Hard disk file transfer and local file transfer AC_BK Web browsing Hiroshi Harada, NICT

Part3-1: Point to Point link Simulation May 2010 Part3-1: Point to Point link Simulation Req 01 – at least 1Gbps at MAC SAP Req 02 – at least 1Gbps PHY rate Req 03 – 1Gbps at 10 meters Hiroshi Harada, NICT

Simulation Parameters May 2010 Simulation Parameters MCSs SC-MCS 8 2640Mbps Pi/2QPSK/LDPC ACK policies No-ACK Immediate-ACK Aggregation-ACK (A-ACK) MSDU length 8KB Aggregation Number of Subframes 8 subframes Length of Subframe 8KB, 128KB IFS MIFS 0.5us SIFS 2.5us Simulation Time 10 minutes CFP and CP timing CFP = 9ms CP = 1ms Distance between Point and Point 10m Hiroshi Harada, NICT

May 2010 Simulation Results Simulation results show the functional requirements [Req01, Req02, Req03] in point-to-point link simulation are fulfilled Req 01: at least 1Gbps at MAC SAP Req 02: at least 1Gpbs PHY rate Req 03: 1Gbps at 10 meters Goodput SC-MCS 8 (2640Mbps,QPSK/LDPC (672, 504)) No-ACK 1.94Gbps Imm-ACK 1.41Gbps A-ACK (8KB) 1.86Gbps A-ACK(128KB) 1.99Gbps Average SNR of 14.28dB for 10m Point-to-Point link Hiroshi Harada, NICT

Part3-2: Home Living Room Simulation May 2010 Part3-2: Home Living Room Simulation Req 04 - Uncompressed Video of 3Gbps Req 05 - Packet Loss Rate 1e-8 Req 06 – Delay 10ms Hiroshi Harada, NICT

Simulation Parameters May 2010 Simulation Parameters MCSs SC-MCS 12 5280Mbps 16QAM/LDPC Used ACK policies No-ACK Immediate-ACK Aggregation-ACK (A-ACK) Aggregation Number of Subframes 8 Length of Subframe 8KB, 128KB, 1MB IFS MIFS 0.5us SIFS 2.5us Simulation Time 10 minutes Human blockage interval Human blockage appears every 1s CFP and CP timing CFP = 9.5ms CP = 0.5ms Distance between AP and STA 2m Hiroshi Harada, NICT

CFP Allocation for Data Transmission in Home Living Room May 2010 CFP Allocation for Data Transmission in Home Living Room Hiroshi Harada, NICT

May 2010 Simulation Results MCS 12 with No-ACK and MCS 12 with Aggregation ACKs (A-ACKs) meet the requirements of goodput (>1Gbps), delay (<10ms) and packet loss rate (1e-8) in home living room Goodput (>1Gbps) Delay (<10ms) Packet Loss SC-MCS 12 (5280Mbps,16QAM/LDPC) No-ACK 2.98Gbps 7.0ms 0% Imm-ACK 2.52Gbps 11.7ms 15% A-ACK (8KB) 6.7ms A-ACK(128KB) 5.6ms A-ACK(1MB) 6.1ms Average SNR of 24.77dB for 2m AP-STA The results of goodput, delay and packet loss rate in home blockage are given in the backup slide (A) Hiroshi Harada, NICT

Part3-2: Office Conference Room Simulation May 2010 Part3-2: Office Conference Room Simulation Hiroshi Harada, NICT

May 2010 ・2 to 1 ・9 to 2 ・3 to 5 ・4 to 9 ・5 to 3 ・7 to 8 ・9 to 7 ・3 ・4 COMPRESSED_VIDEO ・2 to 1 FTP( file transfer ) ・9 to 2 ・3 to 5 ・4 to 9 ・5 to 3 ・7 to 8 ・9 to 7 HTTP ・3 ・4 ・5 ・6 Hiroshi Harada, NICT

CFP Allocation for Data Transmission in Office Conference Room May 2010 CFP Allocation for Data Transmission in Office Conference Room Number of traffics during CFP 1 Lightly Compressed Video traffic 6 FTP traffics 4 HTTP traffics Hiroshi Harada, NICT

Simulation Parameters May 2010 Simulation Parameters MCSs SC-MCS 3 1650Mbps BPSK/RS Used ACK policies No-ACK Immediate-ACK Aggregation-ACK (A-ACK) Aggregation Number of Subframes 8 Length of Subframe 8KB, 128KB, 1MB IFS MIFS 0.5us SIFS 2.5us Simulation Time 10 minutes Human blockage interval - CFP and CP timing CFP = 9ms CP = 1ms Hiroshi Harada, NICT

Result for Office Conference Room May 2010 Result for Office Conference Room This result shows the performance of FTP and HTTP traffic when the video traffic is satisfied the requirements of goodput (600Mbps) and delay (<10ms) on SC-MCS3 Goodput Delay (10ms) Packet Loss TS allocation SC-MCS 3 (1650Mbps, BPSK/RS) Video traffic No-ACK 0.6Gbps 2.7ms 0% 4.4ms Imm-ACK 2.5ms 5.1ms A-ACK (8KB) 2.8ms 4.2ms FTP traffic 23.4Mbps 10ms 2.6ms 25.5Mbps 9.9ms 4.7ms 24.4Mbps 2.2ms HTTP traffic 0.637Mbps 10.1ms 0.04ms 0.624Mbps 11.9ms 0.1ms 0.638Mbps 10.3ms 0.07ms Addition simulation results are shown in the backup slide (B) Hiroshi Harada, NICT

Part4: PAR, FRD and EVM declaration May 2010 Part4: PAR, FRD and EVM declaration Hiroshi Harada, NICT

PAR and FRD declaration May 2010 PAR and FRD declaration ID Subclasue of FRD Requirement Declaration FRD.1 2.1.1 Maximum throughput [Req01] Slide 78 show simulation results that the complete proposal achieves a maximum throughput of at least 1 Gbps, as measured at the MAC SAP. [Req02] Slide 13 show that MCS 3 shall be mandatory for all the devices. MCS 3 provides a PHY rate of 1.650 Gbps. The PHY performance are shown in slides 35-52. FRD.2 2.1.2 Range [Req03] Slide 78 show simulation results that the complete proposal achieves a range of at least 10 m at 1 Gbps, as measured at the MAC SAP, in a NLOS channel. FRD.3 2.1.3 Video requirements [Req04] Slide 82 show simulation results for uncompressed video where the required application data rate of 3 Gbps is achieved at the MAC SAP by the complete proposal. [Req05] Slide 82 show simulation results for uncompressed video where the packet loss rate is below 1e-8 for a 8Kbyte payload size. [Req06] Slide 82 show simulation results for uncompressed video where the delay is below 10ms. Hiroshi Harada, NICT

PAR and FRD declaration (cont.) May 2010 PAR and FRD declaration (cont.) ID Subclasue of FRD Requirement Declaration FRD.4 2.2 Fast session transfer [Req07] 10/499r1 describes multi-band operation FRD.5 2.3 Coexistence [Req08] Slides 68-70 describe the mechanisms to enable coexistence with other systems in the band, including 802.15.3c. FRD.6 2.4 802.11 user experience [Req09] Slide 56 of the complete proposal describes that the network architecture of 802.11 is fully maintained. [Req10] Slide 56 of the complete proposal describe that the proposal is fully backward compatible with the 802.11 management plane. The MLME is fully reused. FRD.7 [Req11] The PICS is defined in Annex A of the complete proposal. Hiroshi Harada, NICT

EVM Declaration May 2010 ID Subclasue of EVM Declaration EVM.1 2.1 Point-to-point link simulations Slides 76-78 EVM.2 2.2 Link budget parameters for FR Section 2.1.2 (range requirement – Req03) EVM.3 2.3 Coexistence for FR Section 2.3 Slides 68-70 EVM.4 3 PHY Performance Slides 31-52 EVM.5 4 System evaluation Slides 72-78 Hiroshi Harada, NICT

May 2010 Conclusion This document proposes the PHY and MAC layer design for 802.11ad operating in the 60GHz band PHY layer design A hybrid PHY designed consisting of the SC PHY and the OFDM PHY is proposed Channelization of the 60GHz band is presented Data rate modes of respective PHYs are listed Common Mode Signaling bridging across two PHYs is introduced Frame format for respective PHYs are presented MAC layer design Proposed MAC contains Basic MAC and Enhanced MAC Basic MAC is based on 802.11-2007 and other amendments to support 802.11 user experience Enhanced MAC is designed to achieve very high throughput (>1Gbps), directivity support, coexistence with other 60GHz systems and QoS improvement PAR, FRD and EVM declaration is provided Hiroshi Harada, NICT

Backup (A) : Home Living Room (with human blockage) May 2010 Backup (A) : Home Living Room (with human blockage) Goodput (>1Gbps) Delay (10ms) Packet Loss SC-MCS 12 (5280Mbps,16QAM/LDPC) No-ACK 2.35Gbps 7.0ms 20% Imm-ACK 1.92Gbps 15.8ms 35% A-ACK (8KB) 12.6ms A-ACK(128KB) 2.36Gbps 12.1ms A-ACK(1MB) 12.2ms SNR taking into account human blockage that appears every 1s Hiroshi Harada, NICT

May 2010 Backup (B) : Office Conference Room (1/2) Goodput, Delay and Packet Loss per Link Goodput [Mbps] MSDU Delay [msec] Packet Loss Ratio [%] SC-MCS 3 (1650Mbps, BPSK/RS) BLOCK_ACK(8K) FTP AP->STA2 25.681082 10.352 FTP AP->STA7 25.679368 10.347 FTP STA3->STA5 22.422177 10.103 FTP STA4->AP 25.680234 10.356 FTP STA5->STA3 21.612784 10.18 FTP STA7->STA8 25.681078 9.608 HTTP STA3->AP 362.271 10.555 HTTP STA4->AP 534.839 10.707 HTTP STA5->AP 1541.67 9.906 HTTP STA6->AP 113.747 10.23 VIDEO STA2->STA1 600.822784 2.856884 IMM_ACK 25.677746 9.887 25.677737 9.878 25.330256 10.193 25.67519 25.333668 10.174 25.679447 9.91 356.445 11.775 524.311 13.879 1504.711 12.096 112.509 600.822533 2.509467 NO_ACK 25.681098 10.236 25.679385 10.242 19.05997 10.057 25.680246 10.241 18.738945 9.925 25.681094 9.696 363.137 9.914 532.078 10.385 1539.905 10.297 113.59 10.068 600.82274 2.771126 Hiroshi Harada, NICT

May 2010 Backup (B) : Office Conference Room (2/2) Goodput, Delay and Packet Loss in Human Blockage Goodput Delay (10ms) Packet Loss SC-MCS 3 (1650Mbps, BPSK/RS) Video traffic No-ACK 0.6Gbps 2.7ms 0% Imm-ACK 2.5ms A-ACK (8KB) 2.8ms FTP traffic 18.2Mbps 10.1ms 20.4Mbps 10.2ms 19.1Mbps 10.4ms HTTP traffic 0.768Mbps 0.753Mbps 11.9ms 0.770Mbps Human blockage occurs every 1s Hiroshi Harada, NICT

May 2010 Reference Function requirements: 11-09-0228-05-00ad-functional-requirements Channel model document: 11-09-0334-07-00ad-channel-models-for-60-ghz-wlan-systems Evaluation methodology: 11-09-0296-16-00ad-evaluation-methodology Hiroshi Harada, NICT

May 2010 Strawpoll “Do you support adopting the whole or part of the complete proposal in 10/0498r0 as the material to create the first draft of the TGad amendment?” Yes, No, Abstain