RMO1C-1. Indoor and Outdoor Millimeter Wave Systems and RF/BB SoCs

Transcription

1 RMO1C-1 1 Indoor and Outdoor Millimeter Wave Systems and RF/BB SoCs Akira Matsuzawa and Kenich Okada Tokyo Institute of Technology O-Okayama, Meguro-ku, Tokyo , Japan Matsuzawa & Okada Lab.

2 Outline 2 Tokyo Tech mm-wave project 60GHz indoor mm-wave system 38GHz outdoor mm-wave system Summary

3 Mm-wave project 3 Developing mm-wave systems and SoCs to address the future wireless big bang GHz, Indoor 3-10 Gbps -- 10m FY2007-FY GHz, Outdoor Gbps 1km 4km Multi layer FR4 BB MODEM SoC 40nCMOS RF SoC 65nCMOS

4 Project members and roles 4 Three labs. in Tokyo Tech. and five companies Outdoor entrance systems (JRC) Indoor wireless access system (Sony) Mm-wave CMOS Rx/Tx chip and base band ADC/DAC. (Matsuzawa & Okada lab. ) GaN HPA (NEC) Phase noise reduction by DSP (Suzuki lab. Tokyo Tech ) Packaging, MMIC, RF-module (AMSYS) High Gain Arrays (Ando Hirokawa lab.) Propagation Test (Willcom) Antennas on PCB / Chip (Ando Hirokawa lab) The leader is Prof. M. Ando

5 60GHz indoor mm-wave system 5

6 Indoor system: Usage model 6 Giga bit ultra-fast data transfer systems Low power and small size are important Kiosk download Peer-to-peer

7 System block diagram 7 Matsuzawa and Okada lab. developing RF Front-end IC (65nm CMOS) Baseband IC (40nm CMOS) 8b DAC 8b DAC DAC LNA LPF LPF Buff Buff VGA VGA ADC ADC DAC 60GHz ILO DAC 8b+6b 20GHz PLL ch DAC 8b+3b PLL 36MHz TCXO ch 3456MHz PLL PLL DAC Digital Base Band PA LPF DAC DAC 8b DAC 8b LPF Reg. bank addr/data DAC By Sony

8 Equipment image 8 Two chips solution on one PCB with antenna Low cost system Gain: 5.6 dbi

9 60GHz CMOS transceiver chip A direct conversion method is employed to reduce power and complexity. 9 Two 60GHz QILOs with 20GHz PLL

10 Die Photo 10 LNA I MIXER Q MIXER LO BUFFER Q. OSC. 65nm CMOS Rx:3.8mm 2 Tx:3.5mm 2 PLL:1.2mm 2 4.2mm I MIXER LO BUFFER LO BUFFER Buf. VCO PA 20GHz PLL Q MIXER QUADRATURE OSCILLATOR LO BUFFER 4.2mm

11 Communication test setup 11 Low gain antenna in package is used for the test 60GHz Rx 2dBi antenna 60GHz Tx 2dBi antenna DC supply DC supply I/Q output (Rx) 20GHz PLL I/Q input (Tx)

12 Basic performance 12 Low power, low phase noise, and low NF Tx CG 18.3dB Rx P 1dB P SAT PAE P DC 9.5dBm 10.9dBm 8.8% (only for PA) 186mW CG NF IIP3 P DC 17.3dB (high-gain mode) 4.7dB (low-gain mode) <6.8dB (high-gain mode) -5dBm (only for LNA) 106mW PLL Frequency Phase Noise through Ref. spur P out P DC GHz <-58dBc -2dBm 66mW The total Pd of system involving base band chip is about 500mW

13 Modulation Characteristics 13 Realizes every modulations for IEEE c. Constellation 1585 points 3170 points 4755 points 6340 points Modulation BPSK QPSK 8PSK 16QAM Data rate 2.16GHz-BW EVM Distance (BER < 10-3 ) 1.76Gb/s 3.52Gb/s 5.28Gb/s 7.04Gb/s -18dB (-24dB with DFE) -18dB (-28dB with DFE) -17dB -17dB cm cm cm cm 8Gb/s(QPSK) and wider-bw

14 Progress of data rate in 60GHz 14 The transceiver attained over 10Gbps Data rate [Gbps] UCB(QPSK) NEC(QPSK) Tokyo Tech OOK Toronto Univ. (only BPSK) FSK OOK 16QAM QPSK Year

15 Key technology: Quadrature ILO 15 Quadrature injection locked 60GHz oscillator with 20GHz PLL Low phase noise of In Qn 20GHz PLL In Qp VDD 20GHz matching block INJn INJp 70 m 180 m Ip Qp Ip Qn

16 60GHz Quadrature PLL 16 Best phase noise is achieved GHz, -96dBc/Hz-1MHz offset

17 38GHz outdoor mm-wave system 17

18 Role of outdoor mm-wave 18 Current Optical fiber Base stations for WiFi and WiMAX Future Not flexible Optical fiber Connect with mm-wave Very flexible

19 38GHz outdoor mm-wave system 19 Already realized 1Gbps outdoor mm-wave systems

20 System configuration Compatible with Gbit Ethernet Hole system is integrated with planar antenna 20 Ethernet Cable Gigabit Ethernet Transceiver Baseband SoC LPF BPF LNA BPF RX ANT RJ-45 Surge Protector PoE Interface LPF LPF PA BPF TX ANT RJ-45 Surge Protector PoE Interface RJ-45

21 Mixed signal BB SoC 21 A mixed signal SoC has been developed to realize 64QAM (1Gbps) with BW of 260MHz. Base band SoC ADC & DAC 90nm CMOS 40M Transistors

22 Developed ADC 22 Developed new 10b ADC to address 64 QAM. Encoder 10b, 320 MSps, 40mW ADC 2 nd stage 3 rd stage New ADC architecture 1 st stage 4 th stage 5 th stage 700μm No interleaving No double sampling No OpAmp No calibration Timing generator 750μm

23 38GHz High gain planar antenna 23 Developed high: gain and isolation planer antenna Tx Rx Gain: Efficiency: 84.9% Tx/Rx Isolation: 75 db Gain (db) % 90% 80% 70% 60% Gain Exp. Directivity Exp. HFSS Frequency (GHz) Amplitude (db) 0-10 Mea Frequency (GHz)

24 BER vs. SNR 24 BER for 64QAM has been reduced to the ideal C/N vs 64QAM_BER on B-B pair BER 1.E-02 1.E-03 1.E-04 1.E-05 1.E-06 1.E-07 1.E-08 1.E-09 1.E-10 1.E-11 1.E-12 1.E-13 1.E C/N [db] Measurement ENOB=6.0 (600Mbps version) ENOB=6.25 ENOB=6.5 (1Gbps version 2009) ENOB=6.75 ENOB=7.0 ENOB=7.4 ENOB=8.5 (ADC design target) ENOB=7.15 (1Gbps version 2010)

25 Tokyo Tech. Model Network Ten mm-wave base stations in our campus Tokyo Tech. O-Okayama Campus M1 #8 #3 #9 #4 #1 W8 #5 I6 #6 I1 #2 S3 #10 H #7 100

26 Expand the area to NEC (4km) Challenge for 4km mm-wave communication 26 NEC 4km Tokyo Tech 1km

27 Model network in Tokyo 27 Outdoor mm-networks can cover the Tokyo metropolitan area Tokyo metropolitan area

28 Weather variation and availability 28 Watch weather and mm-wave network condition RX level (dbm) /2/2 0: m 220m 530m Path #1 (S3-W8) Path #2 (S3-I1) Path #3 (W8-M1) 2008/2/2 3: /2/2 6:00 Path #1 (S3-W8) Path #2 (S3-I1) Path #3 (W8-M1) 2008/2/2 9:00 Fine Snow 2008/2/2 12:00 Date and time 2008/2/2 15: /2/2 18: /2/2 21: /2/3 0:00 Availability (%) Path Distance (m) 2009 A A 2008 RX level (dbm) /2/3 0: /2/3 3: /2/3 6: /2/3 9: /2/3 12:00 Date and time Snow drops 2008/2/3 15: /2/3 18: /2/3 21: /2/4 0:00 RX level (dbm) /2/4 0:00 Path #1 (S3-W8) Path #2 (S3-I1) Path #3 (W8-M1) 2008/2/4 3: /2/4 6: /2/4 9: /2/4 12:00 Date and time Rain 2008/2/4 15: /2/4 18: /2/4 21: /2/5 0:00

29 Future UHS network with mm-wave 29 Mm-wave will realize real high speed networks collaborating with optical and wireless technology News Contents papers Music Books Movies 40GHz Wireless Fiber 40GHz Optical network 60GHz 60GHz 60GHz 60GHz 60GHz 60GH 帯通信用モジュール搭載型情報端末 ( 次世代 ipad?) 60GHz Data Gates 60GHz 60GHz 改札通過時に立体映像データをダウンロード! 60GH 帯通信用モジュール contents viewer with 60GHz chip RF-CMOS chip image 東工大松澤 岡田研提供 Antenna PKG image アムシス提供 データ閲覧端末

30 Summary 30 Tokyo Tech now developing 60GHz indoor and 38GHz outdoor systems, CMOS RF and ADC/DAC for BB chips 60GHz CMOS direct conversion transceiver chip attained 11Gbps data rate 38GHz 1Gbps outdoor mm-wave system attained 1Gbps data rate with bandwidth of 260MHz for 4km distance communication

31 Acknowledgement 31 This work was partly supported by The research and development project for expansion of radio spectrum resources of the Ministry of Internal Affairs and Communications, Japan. The author is grateful to the members of the project, especially to Prof. Ando (Project leader), Prof. Suzuki, Prof. Hirokawa, Prof. Suyama, Prof. Hirano, Prof. Miyahara, Dr. Hirade, Mr. Iwamoto, Dr. Zhang, Dr. Suga of Tokyo Institute of Technology, Dr. Taniguchi and Dr. Ozawa of Japan Radio Co., Ltd, Dr. Fukuzawa and Dr. Noda of Sony, Dr. Matsunaga of NEC, Dr. Hirachi of AMSYS and Mr. Koyama of WILLCOM.

32 Backup slides for questions 32