Flexible duplex transceivers for 5G and beyond wireless access

There is now significant interest in the use of signal cancellation based architectures in an attempt to replace frequency domain filtering within the duplexing function for next generation wireless transceivers. This approach can potentially eliminate the need for band specific filters, which inhibits global operation of LTE handsets due to the diverse band plan. Further, using such methods in-band full-duplex communications is also possible, thus potentially doubling the spectrum efficiency when compared with conventional techniques.