Terminal Device BWP Selection for Multi-TRP Data Channels

The patent merges multiple data channel transmissions onto a single BWP when they are scheduled by different TRPs through separate DCI messages. Instead of maintaining separate BWPs for each TRP's scheduled data, the terminal consolidates the transmission onto one BWP, thereby reducing the number of simultaneous BWP operations while preserving the multi-TRP transmission capability. This resolves the contradiction by maintaining productivity through combined transmission while reducing device complexity through BWP consolidation.

The patent introduces a priority-based selection mechanism as an intermediary rule to resolve BWP determination conflicts. When multiple DCI messages schedule data channels on different BWPs, the terminal uses a predefined priority rule (e.g., based on TRP identity, BWP index, or scheduling timing) to select which BWP to use. This intermediary selection criterion simplifies the decision process, reducing the difficulty of BWP determination while maintaining transmission flexibility through the priority-based resolution mechanism.

The patent segments data channels into priority levels, with critical data from the serving cell marked as high priority and other data channels as lower priority. When multiple data channels are scheduled on the same BWP, the terminal ensures high-priority channels are transmitted first or with guaranteed resources. This segmentation approach maintains reliability for critical data while allowing lower-priority channels to be transmitted in available resources, thus balancing reliability improvement with maintained transmission quantity.