Random Access Configuration Mapping for 5G Feature Combinations

The patent creates a mapping relationship between feature combinations and RACH resources that allows a single RACH resource to serve multiple feature combinations. Instead of dedicating separate RACH resources to each feature combination, the system uses a unified RACH resource pool with mapping tables that associate different feature combinations (e.g., RedCap, network slicing) with appropriate RACH resources based on predefined rules, thereby reducing signaling overhead while maintaining load balancing capabilities.

The system dynamically adjusts the mapping between feature combinations and RACH resources based on network conditions and load requirements. By changing the mapping parameters (which feature combination maps to which RACH resource) rather than maintaining fixed dedicated resources, the system can optimize load balancing while using a smaller set of RACH resources, thus reducing signaling complexity.

The patent merges multiple feature combination requirements into a unified RACH resource allocation framework. Instead of allocating separate RACH resources for each feature combination (RedCap, network slicing, etc.), the system combines these requirements and uses a shared RACH resource pool with mapping relationships that allow multiple feature combinations to access the same RACH resources under different conditions, thereby reducing the total number of RACH resources needed while maintaining load balancing.

Each RACH resource is designed to be universal and can serve multiple feature combinations. The mapping mechanism allows a single RACH resource to be associated with multiple feature combinations based on predefined rules and network conditions, making the RACH resources multi-functional and reducing the overall quantity required.

The mapping relationships between feature combinations and RACH resources are pre-configured and stored in the terminal before actual random access occurs. When a terminal needs to perform random access, it simply looks up the appropriate RACH resource based on its feature combination and the pre-established mapping table, rather than processing multiple RACH configurations in real-time. This preliminary setup significantly reduces terminal processing load during actual access operations.

The system uses parameter-based mapping where specific parameters (feature combination identifiers) directly map to RACH resources. Instead of providing multiple complete RACH configurations for different features, the system changes the approach to using parameter-based selection from a unified configuration, reducing the processing burden on terminals while maintaining feature-specific optimization capabilities.