4G & 5G

Universal Software Key to Unlock All Waveforms

Cohere’s software-based solution significantly improves spectrum and capacity for 4G and 5G

The pioneering work in the Delay Doppler domain enables robust channel estimation and accurate channel prediction into the future. It alleviates handset feedback requirements by leveraging geometric reciprocity and reduces computation complexity through concise channel representation. All of these features combine to deliver significant spectrum multiplier effect for 4G and 5G networks in both FDD and TDD.

Cohere’s software-based solution offers significant MU-MIMO benefits with no changes to existing handsets, and can work with existing base stations. The Cohere solution works in all available spectrum. Moreover, it allows 4G and 5G co-existence via a vendor neutral approach to dynamic spectrum reuse.

The Delay Doppler channel representation is predictable into the future given that its geometric nature is slow changing. This allows disaggregation of functions which enables Cloud RAN. Cloud RAN creates the foundation for improving cell edge performance via intercell coordination (CoMP).

Cohere’s software includes: Channel Detection, Estimation, Prediction & Precoding and can be deployed within an existing RAN, next to, in a Cloud RAN or O-RAN without change to handsets, radios or antennas.

The aggregated signal energy results in a coherent reconstruction of the transmitted signal at the receiver, which contributes to a stable, reliable and consistent behavior of the connection.