The rollout of 5G systems all over the world comes with an increasing demand for coverage and capacity for new use cases while spectral and energy efficiency as well as latency play an increasing role. Both academia and industry are exploring actively into future technologies for 5G advanced and 6G networks. Full Duplex Radio (FDR) allows a communication device to simultaneously transmit and receive wireless signals on the same channel (frequency band). Enabled by means of self-interference cancelation, FDR can significantly increase the throughput for each allocated channel and therefore increase cell and system capacity and inherently reduce transmit buffer waiting time for data transmissions and therefore to reduce round-trip latencies, associated with acknowledgments or channel feedback. The benefits are enhanced link performance for in-band and out-of-band relaying, device-to-device links as well as in base station – mobile terminal links. In 3GPP, some Study Item (SI) proposals are submitted for Release 18 standardization. Benefits and challenges of applying Full Duplex to Wi-Fi standards have recently been discussed in IEEE802.11. In academia, Full Duplex Emerging Technology Initiative (ETI) in IEEE ComSoc and several international workshops discuss on the feasibility of applying FDR for next generation cellular networks have recently been organized. FDR will be an important role in future wireless communication. Duplex evolution in 3GPP: Full Duplex Radio: Opportunities, Challenges and Future Perspective of FDR TechnologiesFull duplex in 5G and 6G Full-Duplex Hybrid Beamforming for MU-mMIMO in Factory Applications XDD (Cross-Division Duplex), Advanced Duplex Technology”