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ISAC design: sensing without degrading communication and joint signal/resource design

Determine how to perform environment sensing using integrated sensing and communication systems operating in the centimeter-wave (cmWave, 7–24 GHz) and sub-terahertz (sub-THz, 92–300 GHz) bands without degrading communication performance; and design signal structures and resource-sharing mechanisms between sensing and communication for such systems to enable practical high-precision ISAC in 6G networks.

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Background

Integrated sensing and communication (ISAC) leverages the large bandwidths and antenna arrays available in cmWave and sub-THz bands to provide high-precision positioning and sensing alongside data communication. These frequency ranges can achieve sub-meter to millimeter-level ranging, making them attractive for applications such as the metaverse, digital twins, and collaborative robotics.

Despite these advantages, realizing practical ISAC requires methods that do not degrade communication performance while enabling robust sensing. It also necessitates carefully designed signal structures and resource-sharing schemes to balance the dual objectives of sensing and communication, which remain unresolved in the context of cmWave and sub-THz deployments.

References

However, key questions remain, such as how to sense the environment using communication systems without degrading performance, and how to design signals and share resources between communication and sensing.

— CmWave and Sub-THz: Key Radio Enablers and Complementary Spectrum for 6G (2406.18391 - Katwe et al., 26 Jun 2024) in Section "CmWave and sub-THz for Integrated Sensing and Communications (ISAC)", within Section "CmWave and sub-THz: Applications and Synergies with 6G Usage Scenarios"