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© Blu Wireless Technology – May 2017
Gigabit Baseband Modem Technology for 5G mmWave Applications
Interlligent Seminar, 18th May 2017
Ray McConnell, CTO
© Blu Wireless Technology – May 2017
Blu Wireless Technology Ltd Gigabit mmWave modem IP
– Consumer WiGig : IEEE 802.11ad/ay
– 4G backhaul and Fixed Wireless Access
– Pre-5G deployments
60+ wireless, silicon & software engineers
Strategic partnership with ARM Ltd
Deployment of 802.11ad for US customers
Deep sub-micron SoC baseband design
Participant in EU H2020 5G-XHaul project
Members of Wi-Fi Alliance WiGig, ETSI mWT ISG groups and UK’s 5G IC
Page 215-May-17
© Blu Wireless Technology – May 2017
10 20 30 40 50
60 70 80 90 100
6 7/8 11 13 15 18 23 26 28 32 38 42FDD
50
50 - 55 57 - 64
WiGig .11ad
64 - 71
*New* FCC
71 - 76
E Band E Band
81 - 86
W
92 - 95
FCC Oct-15 : 5G @ mmW28, 37, 39 , 64 – 71 GHz
Massive Millimetre Spectrum
Page 315-May-17
China 802.11aj42.3-47, 47.2-48.4 GHz
802.11aj
5G Candidate..
>40GHz of bandwidth available NOW for mmWave applications with a further >80GHz bandwidth to be allocated >100GHz
TOTAL existing LTE (3/4G) Bandwidth is <2GHz…. so mmWave can provide >60x this bandwidth
© Blu Wireless Technology – May 2017
mmWave Wireless Networking Compact electronically steered phased
array antenna for ease of deployment
Heterogeneous networks using both licensed and unlicensed spectrum
Mesh SDN for robustness and dynamic load balancing
60GHz oxygen (V-band) attenuation helps with spectrum reuse
Applications in transport sector Rail track to Train and automotive V2X
Moving to Joint Back Haul/Access : 5G?
Page 515-May-17
E-Band
60 GHz
© Blu Wireless Technology – May 2017
Licensed vs Unlicensed 5G ?Licensed 28 & 39 GHz
pre-5G OFDM air interface
100 MHz channelization
Up to 64QAM modulation
MIMO : 2x2 to 8x8 support
Data rates:– 800 Mbps (64QAM 2x2 MIMO)
– 3200 Mps (64QAM 8x8 MIMO)
Unlicensed 57 – 71 GHz
IEEE 802.11ad/ay air interface
1760 MHz channelization
BPSK to 64QAM modulation
SC with FDE
Optional MIMO (XPIC)
Data rates– 2500 Mbps (QPSK no MIMO)
– 8000 Mbps (64QAM no MIMO)
Page 615-May-17
Verizon 5G Technical Forum http://www.5gtf.org/
© Blu Wireless Technology – May 2017
60GHz Radio Technology & Market Introduction
Page 7
IBM : Millimetre wave RF at 60, 70/80
Bell Labs : 94 GHz RF PAA on SiGe BiCMOS
IMEC: PHARA 60 GHz Phased Array RF in 28nm CMOS
SiBeam: 12+12 60 GHz Phased Array in 65nm CMOS
WiGig / 802.11ad chipsets from Qualcomm, Intel…
WiGig Products from Lenovo, Dell, Netgear, TPLink….
15-May-17
© Blu Wireless Technology – May 2017
5G Modem Complexity : 802.11ad Modem
High speed IQ ADC and DAC at 7b / 3.52 GHz – 2xsymbol rate
Directional TDMA MAC using active beamforming
LDPC error coding with common code length of 672 bits
Channel equalisation based on SC CEF field suitable for delay spread ~ 30 nsec RMS
Computationally intensive: 2+ Teraops for SC-FDE modem
RF EIRP to +40 dBmi (FCC Part 15.255)
Page 815-May-17
Modems Modulation FEC code rate Data rate Symbol Rate
Single-carrier(MCS 1 – 12.6)
/2- BPSK/2- QPSK/2- 16QAM/2- 64QAM
½, 5/8, 3/4 , 13/16 MCS1 385 MbpsMCS9 2.5 GbpsMCS12 4.6 GbpsMCS12.6 8 Gbps
1760 MHz
Control (MCS0) /2- DBPSK ½ (32 chipspreading)
27.5 Mbps 1760 MHz
© Blu Wireless Technology – May 2017
Modem Processing : Signal Flow and MOPs
Page 915-May-17
Rate (G/s) Real Mults (G/s) Real Add (G/s)
Digital Filter & Downsampling 2.64 63.36 58.08
Synchronisation 1.76
Correlation 3.520 899.454
Power Calculation 3.520 1.760
Maximum Detection
Threshold Comparison 0.206 2.035
Rough CFO Estimation 0.028 0.007
Estimation
Pos/Neg CFO Compensation 1.76 15.840 14.080
Correlations 0.000 899.454
LSE Estimator 5.330 7.965
P&Q calculation 0.880 1.320
Fine CFO Estimation 0.443 1.319
Channel Estimation 0.440 0.660
Noise Power estimation 0.442 0.660
Channel DFT 15.840 15.840
MMSE Equaliser 3.960 4.840
Data Processing 1.76
Rx IQ Compensation 7.040 10.560
CFO Compensation 8.800 7.040
DFT 63.362 63.362
Equalisation 7.040 7.040
IDFT 63.362 63.362
Tracking & TS removal 0.000 0.000
Rotation calculation 0.887 1.317
Rotation compensation 6.162 6.162
TX IQ compensation 12.320 15.400
Total (GOPs/s) 282.8 2081.7
* Baseband Modulation : 60 GHz Technology for Gbps WLAN/WPAN 2011
© Blu Wireless Technology – May 2017
HYDRA Baseband for mmW Wireless
HYDRA PHY
HYDRA PHY
Heterogeneous
Processor
HYDRA Data
Parallel Processor
FFT
TX Data
Subcarrier
demapping
Equalise
Demodulate
Synchronise
FFT
Subcarrier
mapping
Modulate
Cyclic Prefix
LDPC decodeLDPC encode
RF RF
RX Data
HYDRA PHY
HYDRA PHY
Heterogeneous
Processor
HYDRA Data
Parallel Processor
FFT
TX Data
Subcarrier
demapping
Equalise
Demodulate
Synchronise
FFT
Subcarrier
mapping
Modulate
Cyclic Prefix
LDPC decodeLDPC encode
RF RF
RX Data
Page 1015-May-17
HYDRA PHY
HYDRA PHY
Heterogeneous
Processor
HYDRA Data
Parallel Processor
FFT
TX Data
Subcarrier
demapping
Equalise
Demodulate
Synchronise
FFT
Subcarrier
mapping
Modulate
Cyclic Prefix
LDPC decodeLDPC encode
RF RF
RX Data
Parallel Processor Unit (PPU)of >0.5 TeraOp/s at 500MHz
Distributed Vector Data Channel
FFTLDPCNetwork
I/O
Heterogeneous Controller
Distributed Vector Data Channel
FFTLDPCNetwork
I/O
Heterogeneous Controller
Distributed Vector Data Channel
FFTLDPCNetwork
I/O
Heterogeneous Controller
Distributed Vector Data Channel
FFTLDPCNetwor
kI/O
Heterogeneous ControllerSPU
Scalable vector parallel processor targeting 802.11ad ‘WiGig’ requirements
PHY1 40nm prototype with 2 Terap HYDRA and integrated 2.6GHz ADC/DAC (2014)
Integrated with 60 GHz RF and MAC in Lightning Platform as demonstrated at MWC 2015
© Blu Wireless Technology – May 2017
HYDRA Processor Block Diagram
Page 1115-May-17
Distributed Vector Data Channel
SIMD Control Distribution
FFTLDPC
Micro Sequencer
NetworkI/O
Micro Sequencer
Heterogeneous Controller
PE
VM
PE
VM
PE
VM
PE
VM
PE
VM
PE
VM
PE
VM
PE
VM
Micro Sequencer
Micro Sequencer
Vector Data Distribution
SPU
CPUI/O
RISC control processorC control
program & CPU debugging
tools
Vector Accelerator
blocks
These are application dependant
High bandwidth data bus
Non-Blocking dataflow provides
concurrency
uCoded SIMD Vector Processor
uses programmable
pipelining, concurrency and data parallelism
Heterogeneous controller dispatches
co-processor instructions to
execution pipelines
Parallel HW and Vector Processor to support symbol rates greater than processor speed
Localised Data and Dataflow Hardened Component integration :
FFT, LPDC, MIMO … Scalable Components to support
roadmap to HYDRA2.0, 3.0 .. Distributed Control Development, Debugging and
Performance Monitoring via standard toolchains via standard 32b RISC
© Blu Wireless Technology – May 2017
mmW PHY Modem Design
Page 1215-May-17
0 2 4 6 8 10 12 14 1610
-3
10-2
10-1
100
Es/N0 (dB)
PE
R
chType=AWGN, PSDU=8192 octets, 1000 packets/SNR, 431r3 RF impairments
MCS-2, Hg Rev: 1043, Matlab
MCS-2, Hg Rev: 1043, sTest (fixpoint)
MCS-3, Hg Rev: 1043, Matlab
MCS-3, Hg Rev: 1042, sTest (fixpoint)
MCS-4, Hg Rev: 1043, Matlab
MCS-4, Hg Rev: 1042, sTest (fixpoint)
MCS-5, Hg Rev: 1043, Matlab
MCS-5, Hg Rev: 1042, sTest (fixpoint)
MCS-6, Hg Rev: 1043, Matlab
MCS-6, Hg Rev: 1042, sTest (fixpoint)
MCS-7, Hg Rev: 1043, Matlab
MCS-7, Hg Rev: 1042, sTest (fixpoint)
MCS-8, Hg Rev: 1043, Matlab
MCS-8, Hg Rev: 1042, sTest (fixpoint)
MCS-9, Hg Rev: 1043, Matlab
MCS-9, Hg Rev: 1042, sTest (fixpoint)
MCS-10, Hg Rev:103, Matlab
MCS-10, Hg Rev: 1042, sTest (fixpoint)
MCS11, Hg Rev: 1043, Matlab
MCS-11, Hg Rev: 1042, sTest (fixpoint)
MCS-12, Hg Rev: 1043, Matlab
MCS-12, Hg Rev: 1042, sTest (fixpoint)
1% PER
-8 -6 -4 -2 0 2 4 6 8
-8
-6
-4
-2
0
2
4
6
8
Real
Imag
IEEE PHN mask, -97dB/Hz @ 1MHz, evmdB: -26.3573 snr (dB): 27.5274 PSDU error:0
0 1 2 3 4 5 6 7-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
Frequency (GHz)
Gain
(dB
)
full-band Tx Filter Cascade response, Fs=3520MHz
RRC
RRC+ZOH
ABB
RRC+ZOH+ABB
Matlab > C model for implementation
PHY Link performance BER/PER including Non-ideal RF artefacts such as phase noise, IQ, CFO, SFO
Channel modelling inc multipath, LOS/NLOS
Beamforming with Phased Array Antennamodel and Beamsteering Control
Tx and Rx digital filtering for Improved ACI
MAC system model : p2p, p2mp, CBAP, TDMA and dynamic TDMA
Explore system requirements for .11ay, 5G – OFDM,MIMO, FEC, MAC etc
© Blu Wireless Technology – May 2017
60GHz : Estimated Range & Delay Spread
Page 1315-May-17
Max EIRP = 40 dBmi (from FCC 15.255). Link availability 99.99%
Scaled 1:1 2:1 and 4:1 802.11ad QPSK 2.5 Gbps SC modem 10% overhead and 1:1 full duplex datastream
0
50
100
150
200
250
300
350
400
0 mm rain/hrO2+Rain atten: 15
dB/km
London : Region E22mm rain/hr
O2+Rain atten: 25dB/km
NYC: Region K42mm rain/hr
O2+Rain atten: 30dB/km
Ran
ge (
m)
250 Mbps
500 Mbps
1000 Mbps
0 50 100 150 200 250 3000
1
2
3
4
5
6
7
mean distance (m)
RM
S d
ela
y s
pre
ad (
ns)
5 deg
10 deg
15 deg
Delay spread as function of antenna beamwidth
RMS delay spread of <7 nsec
SC FDE in .11ad can equalise for >20 nsec
© Blu Wireless Technology – May 2017
‘BH2’ Baseband Modem Integrated mmWave modem
– Dual HYDRA1.0_BH Modem
– Extended IEEE 802.11ad PHY/MAC
– TDD and FDD duplex support
– Support for multiple mmWave RF
– PCIe2.0 dual channel (8 Gbps)
Flexible wireless MAC layer
– 802.11ad compliant
– LINUX SW support
Development platforms Q3’17
Page 1415-May-17
© Blu Wireless Technology – May 2017
Summary Flexible millimetre wireless platform
Phased array RF using mainstream semiconductors
Flexible baseband able to scale up/down from WiGig
Roadmap to 5G millimetre wave at 28/39 GHz
Roadmap to >10 Gbps with 802.11ay
UK Impact? Harmonise US and UK regulations in 57 – 71 GHz ?
Millimetre Wave test beds for transport and smart city applications to support UK 5G initiative for 2018?
Page 1515-May-17
© Blu Wireless Technology – May 2017 Page 1615-May-17
Thank youFor further info please visit
www.bluwirelesstechnology.com
or contact