Uplink Grant Configuration Density Adjustment for Traffic

The patent implements dynamic adjustment of uplink transmission parameters by allowing the UE to request and the base station to configure modified grant parameters (periodicity, number of RBs, MCS) based on current traffic conditions. This transforms the static configured grant into a dynamic resource allocation mechanism that adapts to varying uplink traffic demands, resolving the contradiction between maintaining simple protocol operation and achieving high transmission capacity.

The patent changes key transmission parameters including periodicity of uplink transmission occasions, number of resource blocks (RBs), and modulation coding scheme (MCS). By modifying these parameters in response to traffic conditions, the system increases uplink transmission capacity and reduces delays while maintaining efficient resource allocation, directly addressing the contradiction between transmission capacity and delay.

The patent implements a feedback mechanism where the UE monitors its buffer status and traffic conditions, then sends resource modification requests to the base station when uplink traffic exceeds configured grant capacity. The base station responds with modified grant configurations. This closed-loop feedback system enables high throughput by adapting to actual traffic conditions while keeping resource allocation complexity manageable through event-triggered updates rather than continuous reconfiguration.

The patent uses pre-configured grant parameters that are established in advance through RRC signaling, providing a baseline configuration that eliminates the need for frequent dynamic resource allocation. When traffic conditions change, the system only requires updates to specific parameters rather than complete reallocation, reducing control channel overhead and resource allocation complexity while maintaining the ability to achieve high throughput when needed.