Cohere Technologies markets a Spectrum Multiplier platform that improves the spectral efficiency of any generation (“any G”) mobile network by “as much as two times,” the company says.
The 3GPP-compliant software Cohere’s Spectrum Multiplier software can be integrated by network equipment suppliers in their radio access gear or as a cloud app, Cohere says.
Vodafone has tested the Spectrum Multiplier using open radio access network (O-RAN) interfaces and “immediately doubled the capacity of their cell site,” says VMware, which also participated in the test as the supplier of the O-RAN platform.
Cohere says its software works by “overcoming the complexity of accurate channel estimation and prediction,” reducing roundtrip latency. That is said to be a big issue for multiple input multiple output radio systems, which by definition use arrays of antennae and therefore “create” the task of coordinating the operation of the multiple radios.
Channel estimation essentially is a process of comparing a transmitted signal with a received signal to determine the channel’s performance parameters (noise, phase shift, attenuation), if I can summarize estimation correctly.
Cohere says its “work in the Delay Doppler domain reduces computation complexity through concise channel representation.”
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