DIU seeks 5G Co-Channel Interference Mitigation solutions

The Defense Innovation Unit seeks solutions for 5G Co-Channel Interference Mitigation. Responses are due by June 26.

The Department of Defense’s (DoD) operations heavily depend on the reliability and efficacy of satellite communications (SATCOM) systems. However, the integration of 5G wireless technology into the global telecommunications infrastructure presents a significant challenge. The bandwidths used by SATCOM equipment often encounter substantial overlap with the 5G radio frequency (RF) spectrum, which, in turn, is causing a detrimental impact on the quality and dependability of received SATCOM signals. This issue is especially pronounced due to the proliferation of 5G technology, which is rapidly becoming ubiquitous in many regions worldwide.

In particular, DoD’s satellite communications equipment users often encounter reception degradation due to overlap with the 5G RF spectrum. This affects the quality and reliability of the received global SATCOM signals.

A solution is needed to effectively isolate received SATCOM signals in the presence of 5G RF interference, and provide sustainable SATCOM signal quality. These environments are complicated by numerous factors, including the presence of multiple 5G towers operating on a variety of channels using technologies that increase signal complexity. The envisioned solution, therefore, must consistently provide high-quality SATCOM signal reception, irrespective of the level or type of 5G activity in the vicinity. This would involve possibly rethinking current approaches, hardware designs, or algorithms for signal processing.

Desired Solution Attributes

The DoD seeks to develop a solution that sufficiently mitigates C-band co-­channel interference emanating from 5G towers and close by users that was once reserved for SATCOM use only.

The proposed solution should involve a detailed assessment of the co-channel environment to understand the potential impact of close proximity 5G wireless systems on SATCOM receive signals. Advanced techniques and processing algorithms will be developed to sufficiently mitigate the impact of 5G co-channel interference thus enabling successful (near real-time) demodulation of SATCOM receive signals in a co-channel environment.

In the event that a fully comprehensive solution addressing the outlined challenge is not received, priority will be allocated to submissions that exhibit proven and contemporary products capable of being repurposed for the required application with minimal non-recurrent engineering effort. This includes solutions that, while not originally designed for this specific use-case, demonstrate a robust foundational technology or system which can be effectively modified or expanded to address the problem at hand.

Review the DIU 5G Co-Channel Interference Mitigation call for solutions.

Source: DIU

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