Random Access Resource Mapping Across TRPs for Lower 5G Latency

The patent introduces control resource set pool index values and physical cell identifiers as intermediary elements that mediate between the user equipment and random access resources. These intermediaries establish a mapping relationship that enables efficient resource selection without requiring complex direct selection algorithms, thus resolving the contradiction between productivity and device complexity.

The patent segments the random access resource selection process into distinct components: identifying synchronization signal blocks, determining associated control resource set pool index values, and selecting physical cell identifiers. This segmentation allows each component to be processed independently, improving overall efficiency while maintaining manageable complexity through modular operation.

The patent performs preliminary action by pre-associating control resource set pool index values with physical cell identifiers and TRPs before the random access procedure begins. This pre-establishment of mapping relationships eliminates the need for complex real-time detection and measurement, allowing user equipment to directly identify appropriate resources based on stored associations, thus improving adaptability while reducing identification difficulty.

The patent uses copying by creating a mapping structure that replicates the relationship between control resource set pool index values, physical cell identifiers, and TRPs. This copied mapping information is stored and reused during random access, enabling efficient resource identification without requiring complex detection processes, thereby resolving the contradiction between adaptability and detection difficulty.