Uplink Resource Allocation Using Combinatorial Indexing

The resource allocation is segmented into resource block groups (RBGs) where each RBG contains multiple contiguous resource blocks. This segmentation allows the system to allocate resources in flexible units while using compact bitmap representations, achieving both scheduling flexibility and controlled overhead.

The patent introduces a two-dimensional resource allocation approach by combining frequency-domain RBG bitmaps with time-domain resource indication. This dimensional expansion enables more flexible scheduling while maintaining efficient control information structure through the equation-based resource allocation field size calculation.

The system dynamically switches between contiguous and non-contiguous resource allocation modes based on scheduling requirements. The resource allocation field size equation adapts to different allocation scenarios, allowing the system to optimize for either efficiency or flexibility as needed.

The patent changes the parameter of resource block grouping size (P) to balance between contiguous and non-contiguous allocation. By adjusting P in the resource allocation field size equation, the system can optimize resource utilization while maintaining scheduling flexibility for different traffic patterns.

The patent uses partial resource block grouping where not all resource blocks are grouped into large RBGs. By strategically forming RBGs of size P, the system achieves reduced overhead while maintaining sufficient allocation precision for most scheduling scenarios.

Different parts of the frequency spectrum can have different RBG sizes adapted to local requirements. The resource allocation field size equation allows flexible configuration of P based on total resource blocks, enabling local optimization of the precision-overhead tradeoff.