A Novel Block Diagonalization Based Beam Nulling Method in Dynamic TDD Systems

Cross-link interference (CLI) is a prevalent type of interference in dynamic time division duplex (TDD) systems. Mitigating CLI is crucial for effective system design in contemporary wireless communication systems. Proper mitigation of CLI can enhance transmission and reception robustness, improve spectral efficiency, and overall throughput. Consequently, there is a need for innovative methods and approaches to address CLI mitigation. Therefore, this paper proposes and evaluates a novel beam nulling method based on block diagonalization (BD). The method is introduced and evaluated using numerical results. Analysis and numerical results demonstrate the superior performance of the proposed method in dynamic TDD scenarios.