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INNOVATIONS IN

FULL DUPLEX

TECHNOLOGIES

SIMULTANEOUS, SINGLE-CHANNEL TRANSMIT AND RECEIVE TECHNOLOGY DOUBLES THROUGHPUT AND MAXIMIZES SPECTRAL EFFICIENCY ESSENTIAL TO 5G 

CURRENT TECHNOLOGIES HAVE PERFORMANCE LIMITATIONS 

Time Division Duplex (TDD) technology uses a single channel alternating between downlink (DL) or uplink (UL) which limits capacity/throughput.  Frequency Division  Duplex  (FDD)  uses two independent channels for DL and UL but requires twice the spectrum.   Neither TDD nor FDD can simultaneously transmit and receive on a single channel - a limitation that network advancements and 5G will expose.

 LEXTRUM'S FULL DUPLEX TECHNOLOGIES SIMULTANEOUSLY TRANSMIT AND RECEIVE ON A SINGLE CHANNEL

Our technology resolves the limitation of current TDD and FDD by increasing network performance and doubling spectrum efficiency.

THE CONNECTED WORLD NEEDS MORE EFFICIENT SPECTRUM 

 
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ABOUT US

OUR DEVELOPMENT

We were founded in 2015 at University of California, Irvine by a team of network technology specialists in the field of RF transmission. We emerged from UCI's Applied Technology incubator in 2019 after our development of patented FD transceiver intellectual property that can be easily integrated into current systems. Our use of beam steering antennas controlled by smart antenna heuristics to achieve spatial filtering of self-interference multipath is our core technology. Cancelling the major self-interference multipath energy components in the propagation domain reduces the compression of the front-end, improves linearity and increases the bandwidth that can be handled by the system by inherently reducing frequency selectivity.

In 2019, we were acquired by COMSovereign Corporation (Stock Symbol : COMS) to combine our technologies with COMSoverign communication-focused subsidiaries' products and service to support the upgrade of "Transitional" 4G LTE networks for a nationwide upgrade to the 5G platform. 

 PARTNERSHIPS AND RELATIONSHIPS OPEN A VAST MARKET FOR OUR TECHNOLOGY'S APPLICATION 

WE EMBED OUR FULL DUPLEX TECHNOLOGIES

FPGA / SOC IP Reference Design
FPGA SOC/RFIC Integrated Transceiver

OEM RADIOS AND CONNECTED DEVICES

First Responder Radios
FWA and Small Cell Access Radios
5G Connected Radios

END 
USERS

Fixed Wireless Backhaul

5G Rollout

WiFi 6

INNOVATIVE FULL-DUPLEXING

TECHNOLOGIES

RESOLVE CURRENT NETWORK  TRANSMISSION LIMITATIONS

THE CHALLENGE FOR SPECTRAL EFFICIENCY 

AND HOW LEXTRUM SOLVES IT

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TDD AND FDD LIMITATIONS

THE LEXTRUM FD SOLUTION

FDD, and later TDD, technologies have been the foundation of 2G, 3G, and most recently 4G networks. With the advent of 5G networks, and the continually growing need for both spectrum efficiency and increased throughput, these traditional technologies have reached their limits.

The Lextrum FD solution marries the spectral efficiency of TDD with the throughput advantage of FDD, making it the obvious choice for meeting the rigorous requirements of today’s developing 5G networks. The flexibility of the Lextrum FD solution means it can support legacy 4G protocols, and new 5G protocols, allowing a seamless transition from one generation to another, as networks evolve.

THE MARKET REQUIRES TRANSCEIVER INNOVATION 

 THE NEED TO MAXIMIZE SPECTRAL EFFICIENCY WILL BE EXPOSED BY...

BANDWIDTH
GROWTH

occurs every year as devices innovate and increased media is transmitted.

SPECTRAL
EFFICIENCY

is essential to meet bandwidth demand when channels are limited.

WIRELESS
TRAFFIC

increases every year by user and the numbers of devices on networks

DENSE 
ENVIRONMENTS

call for technology that improves spectral efficiency, without sacrificing throughput or performance

THE PROMISE
OF 5G

 requires technologies that allow network operators to take advantage of all 5G will have to offer.

SPECTRAL EFFICIENT TECHNOLOGIES

  • Supports simultaneous transmit and receive in a single channel 

  • Maximum spectral efficiency with 2x throughput increase 

  • Merges best of FDD/capacity and TDD/spectral efficiency 

  • Self-interference cancellation via passive suppression and active RF and digital cancellation

  • Achieves +120 dB aggregate self-interference cancellation

  • Reduces multi-path self-interference to below noise floor

Use of beam steering antennas controlled by smart antenna heuristics achieves spatial filtering of self-interference multi path

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OUR MARKETS 

AND THE TECHNOLOGIES
WE PROVIDE TO SERVICE EACH

COMMERCIALIZATION OF OUR FD TECHNOLOGIES

Business and Product Development Domains

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EMBEDDED
FD

FPGA / SOC IP Reference Design
FPGA SOC/RFIC Integrated Transceiver RFIC

FREQUENCY DEPENDENT INTEGRATION ELEMENTS

Beamsteering Antenna

RF Canceller

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OEM RADIOS AND CONNECTED DEVICES

First Responder Radios
FWA and Small Cell Access Radios

5G Radios

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TRANSITIONAL
4G LTE A  TO 5G 

Fixed Wireless Access

5G Rollout

WiFi 6

Within each  business and product development vertical, we provide the following services and expertise:

  • PHY integration

  • Standards Compliance

  • 5G Integrated Access and Backhaul (IAB) Foundation

  • 4G/5G TDD Band Plans

  • Performance Characteristics

  • Cost Drivers

  • 4G/5G Access Networks

  • Use Cases

  • Service Requirements

  • 4G/5G TDD Spectrum Bands

  • Performance Requirements

  • OM&P Requirements

 
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5120 S. Julian Road • Tucson, Arizona 85706

858-240-2500