Interlace Configuration for Two-Step CFRA Random Access

The patent reuses existing RRC parameters and signaling structures that were originally designed for other purposes (CBRA procedures, normal PUSCH scheduling) and adapts them for configuring interlaced resource allocation in msgA PUSCH transmissions. This allows the same configuration framework to serve multiple random access procedures without requiring entirely new parameter sets, thereby improving resource utilization while limiting the increase in configuration complexity.

The patent introduces specific parameter values and configurations for interlaced resource allocation (such as interlace patterns, frequency domain resource allocation types) that can be selectively applied to msgA PUSCH in CFRA procedures. By changing and specifying particular parameter values rather than creating new configuration structures, the system achieves improved transmission efficiency while keeping the overall configuration complexity manageable through parameter adaptation rather than structural overhaul.

The patent combines the configuration of interlaced resource allocation for msgA PUSCH with existing RRC signaling messages and parameters used for other purposes (such as RACH configuration, PUSCH configuration). By merging multiple configuration functions into existing signaling structures, the patent achieves configuration flexibility for interlaced resource allocation while avoiding the need for separate dedicated signaling messages, thus reducing signaling overhead.

Existing RRC parameters and signaling structures are designed to serve multiple functions: they configure both traditional and interlaced resource allocation, support both CBRA and CFRA procedures, and manage both preamble and PUSCH resources. This multi-functionality allows the system to achieve configuration flexibility without proportionally increasing signaling overhead, as the same signaling infrastructure handles multiple configuration tasks simultaneously.