Non-Codebook PUSCH Repetition Mapping for Multi-TRP Beam Selection

The patent segments the SRS resources into multiple resource sets, where each resource set is associated with a specific TRP. This segmentation allows independent optimization of beam/precoder selection for each TRP while maintaining overall system flexibility. The UE can select SRS resources from different resource sets corresponding to different TRPs, enabling reliable channel estimation for each transmission point.

The patent introduces a new dimension of TRP-specific resource set configuration alongside the existing non-CodeBook flexibility. By adding TRP association as an additional dimension to SRS resource configuration, the system achieves both adaptability (through non-CodeBook mode) and reliability (through TRP-specific beam optimization).

The patent applies preliminary action by pre-configuring multiple SRS resource sets with their associations to specific TRPs before actual PUSCH transmission. The gNB provides RRC configuration that defines the mapping between SRS resource sets and TRPs in advance. This preliminary configuration reduces real-time decision complexity during transmission, as the UE can directly select resources based on pre-established mappings.

The patent introduces SRS resource set configuration as an intermediary layer between the UE and multiple TRPs. This intermediary structure simplifies the interaction by providing a standardized configuration framework that manages the complexity of multi-TRP operations. The RRC configuration acts as a mediator that translates complex multi-TRP requirements into manageable resource set definitions.