massive mimo prototyping and commercialization · faros-rrh: configurations faros-enc-03-cbrs...

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Massive MIMO Prototyping and Commercialization

Clayton Shepard

2© Skylark Wireless 2012-2018

© Skylark Wireless 2012-2018

Argos Base Station Architecture

Central Controller

Argos Hub Argos Hub Argos Hub

Module Module Module

Module

Module

…

…

…

Data Backhaul

ModuleRadio Radio Radio…


SDR Platform Designed for Massive MIMO

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Faros Modular Massive MIMO SDR

Faros-ENC-03-SFP: 1.5U form factor• 8x Iris SDRs per 1.5U (16 radios)• 6x 1.5U racks per HUB (96 radios)• Synchronized clocks & timing

Faros-EXT-01-SFP

• IRIS-FE-CBRS: Integrated Antennas• IRIS-FE-UHF: SMA ports to antennas• IRIS-FE-DEV: SMA ports to antennas

Iris-030

Faros-ENC-05-HUB• FPGA: XCZU9EG-2FFVC900I• Multiple Hubs can be linked• 2x 240 VAC / 48 VDC Power

Supply

2x MTP/MPO fiber connector2x 48 VDC connector

Faros-ENC-03-SFP


Faros System Overview

13.2 Gbps Tx/Rx48 VDC

ClockingFrame Sync

DirectConnect

(10x per chain)

Direct Connect to Antenna Array

Dual FMC

2x 6.6GbpsFiber

Faros-ENC-03Faros-ENC-05-HUB

Up to 4x10 GbE Fiber

6x Faros-ENC-03

48 VDC

AC/DC Supply

AC/DC Supply

Faros-ENC-05-HUB


Iris Radio Modules

• Lime LMS7002

• 2x 50 MHz to 3.8 GHz• Up to 122.88 MHz Bandwidth

• Modular RF Frontend

• Xilinx Zynq

• Power over Ethernet (PoE)

• Large-Array Support


Iris RF Frontends

• UHF– 470 to 700 MHz

– 30 dBm

• BRS/CBRS– 2.49 to 2.7 and 3.55 to 3.7 GHz

– 28 dBm

• Development


Faros-RRH: Configurations

Faros-ENC-03-CBRS (3550-3700 MHz)• 1x Iris-EXT-01-SFP RRH Extension• 8x Iris-030• 8x Iris-FE-03-CBRS• 8x Faros-ANT-CBRS 2x2 Dual Polarized• Fans, seals, brackets, SFP transceivers• Antennas internal to unit

Faros-ENC-05-HUBFaros-ENC-xx-xxx

Faros-ENC-04-UHF (470-700 MHz)• 1x Iris-EXT-01-SFP RRH Extension• 8x Iris-030• 8x Iris-FE-02-UHF• Fans, seals, brackets, SFP transceivers• SMA bulkhead connectors

Faros-ENC-03-BRS (2555-2605 MHz)• 1x Iris-EXT-01-SFP RRH Extension• 4x Iris-030• 4x Iris-FE-03-CBRS• 4x Faros-ANT-BRS 2x2 Dual Polarized• 3x Iris-EXT-02-SPC• Fans, seals, brackets, SFP transceivers• Antennas internal to unit


Faros-RRH: 16x16 TVWSFaros-ENC-xx-RRH-xxx

Faros-ENC-04-SFP-UHF (470-700 MHz)• 1x Iris-EXT-01-SFP RRH Extension• 8x Iris-030• 8x Iris-FE-02-UHF• Fans, seals, brackets, SFP transceivers• SMA bulkhead connectors


Faros Hub: Massive MIMO DSP Accelerator

Faros-ENC-05-HUB


Argos Base Station Architecture

Central Controller

Argos Hub Argos Hub Argos Hub

Module Module Module

Module

Module

…

…

…

Data Backhaul

ModuleRadio Radio Radio…


Faros Distributed Computation


Salt Lake City 5G+ Wireless Testbed

Salt-Lake City

4 Base Stations

512 Coherent Radios

Battery-Powered Mobiles

Open, Programmable

High-Speed Backhaul

Edge & Cloud Compute


• NSF Platforms for Advanced Wireless Research (PAWR)• $100M over 5 years

• $20M to Utah and Rice

https://powderwireless.net/Rice University

POWDER-RENEW

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5G Wireless for Rural ConnectivityBroadband for the next billion


The Digital Divide

Over half the world does not have internet access. [1]

Rural broadband is prohibitively expensive:

• OpEx 3x higher

• CapEx 2x higher

• Revenue 10x lower [1]

[1] Broadband Commission for Sustainable Development, “The State of Broadband,” Sept 2017, ITU, UNESCO

39% of Americans in Rural Areas lack broadband access [2]

[2] FCC US State of Broadband Report 2016


Solution: Massive MIMO + TV Whitespace

• Beamforming in UHF enables incredible range

• Spatial multiplexing enables incredible capacity• > 100 bps/Hz


West Virginia

Airband Initiative


Mingo County• Approximately 25,000 residents

• ARC distressed economic region

• Hilly terrain, population lives in valleys

• Poor broadband availability and affordability

• Excellent UHF propagation

• Over 60 MHz of contiguous UHF spectrum


Example Coverageof Skylark’s Faros 5G Base Station


Horsepen Tower, WVA


Programming Faros/Iris

• SoapySDR

• Argos Measurements

• OpenAirInterface


OpenAirInterface on Iris

• FDD & TDD• Test on bands 7, 12, 38, 42

• 5 MHz and 10 MHz• 20 MHz requires bus

• NGFI IF4p5 in development


Platform for Massive MIMO Prototyping and Commercialization

[email protected]

Flexible and Scalable

Large Coherent Arrays

Long-Range Outdoor

mailto:[email protected]

massive mimo prototyping and commercialization · faros-rrh: configurations faros-enc-03-cbrs...

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