Short TTI Uplink Control Channel Resource Allocation

The patent segments the uplink control information transmission into multiple short TTIs (2 or 3 symbols each) instead of using a single 1 ms TTI. This segmentation allows the system to reduce latency for time-sensitive data while maintaining compatibility with existing LTE/5G infrastructure by breaking down the transmission into smaller, manageable units that can be processed through modified existing operations.

The patent introduces dynamic TTI length adjustment, allowing the system to switch between different TTI durations (2 symbols, 3 symbols, or 1 ms) depending on the service requirements. This dynamic adaptation enables the system to optimize for latency when needed while maintaining compatibility with standard operations when latency is not critical, resolving the contradiction between reduced TTI and existing operation compatibility.

The patent merges the resource allocation process for short TTIs with the existing LTE/5G resource allocation framework. By combining the short TTI specific requirements with the established resource management mechanisms, the system achieves precise frequency resource allocation for each symbol while avoiding the need to create entirely new complex allocation procedures, thus reducing overall system complexity.

The patent changes the parameter of TTI length from the standard 1 ms to shorter durations (2 or 3 symbols), which fundamentally alters the resource allocation timing and structure. This parameter change enables precise frequency resource allocation per symbol while leveraging existing resource management algorithms that can be adapted to the new parameter values, thereby achieving precision without proportionally increasing complexity.