What is Wireless Full Duplex?

Wireless Full Duplex allows a radio to simultaneously transmit and receive overlapping signals using a single frequency channel. Imagine FDD performance within a single unpaired TDD channel, that's Wireless Full Duplex. 

Applications of Self-Interference in 5G and Beyond  <IEEE Communications Magazine: 5G Prospects and Challenges>

Wireless Full Duplex <Stanford University Whitepaper> 

What Has Kumu Succeeded To Do?

Kumu has developed technology that cancels Self-Interference, the "unwanted"  energy that leaks into a radio's receiver while transmitting. As a result of the cancellation, the receiver hears no noise from its transmitter, freeing it to cleanly receive external signals. A radio using Kumu's self-interference cancellation technology can transmit and receive at the same time on the same frequency. 

Why Is This Important?

Self-Interference Cancellation revolutionizes the wireless world. Not only does it enable wireless full duplex, doubling the spectral efficiency of every radio in the world (an economic value of trillions of dollars), but it also tremendously simplifies spectrum management: currently an enormously complex task in the hand of regulators.


Self-Interference Cancellation: Applicable To A Host of Horizontal Wireless Technologies w/o Standards Modifications


Full Duplex Wireless Backhaul

Self-Interference Cancellation doubles wireless capacity and reduces spectrum requirements for wireless backhaul solutions

 

Self-Backhauled Small Cell

With Self-Interference Cancellation, the access and backhaul radios can operate simultaneously on the same frequency, allowing the small cell to backhaul itself while maintaining end-end throughput

Self-Interference Cancellation increases WiFi throughput and resiliency in dense and crowded environments without any change to existing clients  

 

Global Spectrum Harmonization

Self-Interference Cancellation acts as a software configurable filter, facilitating global LTE roaming by enabling cellular infrastructure and mobile phones to support multiple frequencies and carrier aggregation 

TV White Space Spectrum Sharing

Self-Interference Cancellation acts as a software configurable filter, empowering a radio to aggregate any random collection of channels and  enabling high throughput applications in fragmented shared spectrum

Radio Jamming and Security  

Self-Interference Cancellation can save lives in the battlefield - jamming enemy radios which are used to activate remote IED explosives while preserving radio communication between friendlies