Inter-numerology interference removal for 5G and beyond mixed-numerology communications

Fifth Generation New Radio (5G NR) and Beyond wireless communication systems are required to support various communication requirements. These variety of communication requirements can be summarized as follows; enhanced mobile broadband (eMBB), massive machine type communication (mMTC) and ultra-reliable and low latency communication (URRLC). To support different requirements, orthogonal frequency division multiplexing (OFDM) signals with variable subcarrier spacing must be used. These variable carier spacing OFDM signals are called as numerologies. However, using more than one numerology in the same frequency band causes interference among the numerologies, this interference is called as inter-Numerology interference (INI). In this study, a solution is proposed that completely removes the inter-Numerology interference on the transmitter side (BS). Therefore, multiple numerology OFDM signals without any INI can be transmitted to User Equiptments (UE).