Beam Failure Detection in Single-DCI Multi-TRP Schemes

The patent divides the beam failure detection process into separate resource sets (first beam failure detection resource set and second beam failure detection resource set), where each set corresponds to a specific TRP. This segmentation allows the WD to independently manage and detect beam failures for each TRP, reducing the complexity of determining beam failure detection resources when multiple TCI states are activated.

The patent introduces beam failure detection reference signals (BFD-RS) as intermediary elements that are associated with TCI states. These BFD-RS serve as mediators between the TCI states and the beam failure detection process, providing a clear reference for the WD to determine beam failure conditions without complex resource determination.

The patent makes the QCL Type D reference signal serve multiple functions: it provides spatial QCL information for beam management and simultaneously serves as the beam failure detection reference signal. This multi-functionality improves measurement precision while avoiding additional configuration complexity, as the same reference signal is used for both purposes.

The patent changes the parameter usage of QCL Type D reference signals from solely spatial QCL information to also including beam failure detection functionality. By reusing the existing reference signal configuration for dual purposes, the patent achieves improved measurement precision without proportionally increasing configuration complexity.