UE Beam Management via QCL Assumption Inheritance

The patent implements dynamic beam management by allowing the UE to determine QCL assumptions for PDSCH reception in the active BWP based on the QCL assumptions used for PDCCH reception in the same BWP. This dynamic adaptation enables the system to adjust beam configurations in real-time, maintaining signal gain while improving spatial coverage flexibility in NTN environments where satellite beams continuously move across the coverage area.

The patent establishes a universal beam management mechanism that applies to both terrestrial and NTN scenarios. By using the PDCCH QCL assumption as a default for PDSCH reception when no explicit indication is provided, the system creates a multi-functional beam management approach that works across different network types and frequency bands, reducing the need for separate beam management procedures.

The patent implements a self-service beam management mechanism where the UE autonomously determines the QCL assumption for PDSCH reception by referencing the PDCCH QCL assumption in the active BWP. This self-determination approach eliminates the need for complex network signaling to explicitly indicate beam configurations, thereby reducing beam management complexity while maintaining comprehensive spatial coverage through continuous beam steering.

The patent uses the PDCCH QCL assumption as an intermediary to transfer beam configuration information to the PDSCH reception process. Instead of requiring direct and complex signaling between the network and UE for each PDSCH beam configuration, the system uses the PDCCH QCL assumption as a mediator that automatically provides the necessary beam information, simplifying the overall beam management complexity.

The patent merges the beam management functions of PDCCH and PDSCH by using the same QCL assumption for both channels in the active BWP. This merging approach eliminates the need for separate beam indication signaling for PDSCH, as the PDCCH QCL assumption automatically serves both control and data channels, thereby improving beam switching efficiency while significantly reducing signaling overhead.

The UE performs self-service beam configuration by autonomously using the PDCCH QCL assumption for PDSCH reception without requiring additional network signaling. This self-service mechanism improves beam switching efficiency by enabling rapid beam adaptation while minimizing signaling overhead, as the UE independently determines the appropriate QCL assumption based on its PDCCH reception parameters.