SBFD RACH Slot Rules for Reliable Preamble and PUSCH Timing

The patent segments the slot configuration into distinct types (SBFD slots and HD slots) with clearly defined characteristics. Each slot type has specific rules for RACH preamble and PUSCH transmissions, eliminating the ambiguity that would otherwise exist in unified slot configurations. This segmentation allows the system to maintain high spectral efficiency through SBFD slots while ensuring reliable transmissions by providing clear, unambiguous rules for each slot type.

The patent applies different transmission rules and characteristics to different slot types locally. SBFD slots have specific rules allowing simultaneous DL and UL transmissions with particular interference management, while HD slots have different rules for sequential transmissions. This local differentiation of quality and rules for each slot type resolves the contradiction by allowing spectral efficiency gains in SBFD slots while maintaining reliability through appropriate local rules.

The patent extracts and separates the configuration rules for different slot types into distinct, clearly defined sets. By taking out the specific rules for SBFD slots and HD slots separately, the patent provides clear guidance for reliable transmissions without creating a single complex unified rule set. Each slot type has its own extracted rules that are simpler to implement and understand.

The patent introduces dynamic slot configuration where the network can flexibly assign slots as either SBFD or HD types based on traffic conditions and interference levels. This dynamic approach allows the system to adapt to changing conditions while maintaining clear rules for each slot type, thereby improving reliability without permanently increasing system complexity. The flexibility allows optimization based on real-time conditions.

The patent changes key parameters for simultaneous transmissions in SBFD slots, including power control parameters, frequency resource allocation, and timing relationships. By adjusting these parameters specifically for simultaneous preamble and PUSCH transmissions, the patent enables high transmission efficiency while managing interference through parameter optimization rather than prohibiting simultaneous transmissions.

The patent introduces the network entity as an intermediary that coordinates and manages simultaneous transmissions. The network entity assigns specific resources, controls power levels, and manages the interference between simultaneous preamble and PUSCH transmissions. This intermediary role allows efficient simultaneous transmissions while systematically managing the harmful interference effects.