Random Access Numerology Selection for Wireless Adaptability

The patent applies dynamics by making the basic parameter set selectable and changeable rather than fixed. The terminal device can dynamically choose from multiple pre-configured basic parameter sets (first, second, third, fourth sets) based on different conditions such as random access causes, link quality, and service requirements, enabling the system to adapt to varying wireless environments while maintaining manageable complexity through pre-defined options.

The patent implements parameter changes by varying the basic parameter sets used in different random access scenarios. Each basic parameter set contains different configuration parameters (such as message sizes, timing values, resource allocations), and the system selects appropriate parameter sets based on the specific random access cause, link quality measurements, and service type, thereby optimizing performance without requiring complete redesign of the random access protocol.

The patent applies segmentation by dividing the random access parameter space into multiple distinct basic parameter sets (first, second, third, fourth sets), each optimized for specific scenarios. This segmentation allows the system to handle different random access causes (initial access, handover, scheduling request, etc.) and different service types (eMBB, URLLC, mMTC) with dedicated parameter configurations, making the complexity manageable through clear separation of scenarios rather than a single monolithic configuration.

The patent achieves universality by designing a framework where a finite number of pre-configured basic parameter sets can serve multiple purposes. The same set of four basic parameter sets is used across different random access causes, link quality conditions, and service types, with the selection logic adapting the appropriate set based on current conditions. This multi-functional approach allows the system to handle diverse scenarios without requiring a separate parameter set for every possible situation.

The patent applies local quality by selecting different basic parameter sets based on specific local conditions such as the random access cause, link quality measurements, and service type requirements. Rather than using a uniform parameter set globally, the system tailors the parameter selection to the specific situation - for example, using different parameters for initial access versus handover, or for eMBB versus URLLC services - thereby optimizing success rate for each local scenario while keeping the overall decision logic structured and manageable.

The patent implements feedback by using link quality measurements and random access cause information as inputs to the parameter selection process. The terminal device measures link quality, identifies the random access cause, and uses this feedback information to select the appropriate basic parameter set. This feedback mechanism ensures that the parameter selection is adaptive to current conditions, improving success rate while maintaining a clear cause-and-effect decision structure that avoids excessive complexity.